返回

初中三年级英语

首页
  • 句型转换
    根据所给要求,改写下列句子。每空格限填一词。
    1. The new flat cost Mr. Black a lot of money. (改为否定句)
    The new flat ______ cost Mr. Black ______ money.
    2.The redbike belongs to my mother. (对划线部分提问)
    ______ ______ belongs to your mother?
    3. Whiz-kid Wendy's never late for work.(改为反意疑问句)
    Whiz-kid Wendy's never late for work, _____ _____?
    4. The boy is so strong that he can carry the heavy safe easily. (改为简单句)
    The boy is strong ______ ______ carry the heavy safe easily.
    5. By the time he was six, he had started learning Japanese. (保持句子原意)
    He ______ learning Japanese ______ he was six.
    6. James Nai. Smith, a Canadian doctor invented basketball. (改为被动语态)
    Basketball ______ ______ by James Nai. Smith, a Canadian doctor.
    本题信息:2009年上海模拟题英语句型转换难度一般 来源:张波
  • 本题答案
    查看答案
本试题 “根据所给要求,改写下列句子。每空格限填一词。1. The new flat cost Mr. Black a lot of money. (改为否定句)The new flat ______ cost Mr. Black ______ mo...” 主要考查您对

疑问代词

形容词

副词

被动语态

不定式

一般过去时

反意疑问句

状语从句

等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
  • 疑问代词
  • 形容词
  • 副词
  • 被动语态
  • 不定式
  • 一般过去时
  • 反意疑问句
  • 状语从句

疑问代词:
疑问代词在句中起名词的作用,用来构成疑问句。常用的疑问代词有:   
what, who, whose, whom, which, whatever, whichever, whoever, whomever   
疑问代词在句中应位于谓语动词之前,没有词性和数的变化,除who之外也没有格的变化。 
what, which, whose还可作限定词。
Whose books are these on the desk?
桌上的书是谁的?
What was the directional flow of U. S. territorial expansion?
美国的领土扩张是朝哪个方向的?
What events led to most of the east of the Mississippi River becoming part of the United States?
哪些事件使密西西比河以东的大部分土地归属于美国?
疑问代词在句中起名词词组的作用,用来构成疑问句。疑问代词有下列几个:
指 人: who, whom, whose
指 物: what
既可指人又可指物: which


疑问代词说明:
一、无论是做疑问代词还是限定词,which 和 what 所指的范围不同。what所指的范围是无限的,而which则指在一定的范围内,例如:
Which girls do you like best?
你喜欢哪几个姑娘?
What girls do you like best?
你喜欢什么样的姑娘?

二、Whom是who的宾格,在书面语中,它作动词宾语或介词宾语,在口语中作宾语时,可用who代替,但在介词后只能用whom, 例如:
Who(m) did you meet on the street?
你在街上遇到了谁?(作动词宾语)
Who(m) are you taking the book to?
你要把这书带给谁?(作介词宾语,置句首)
To whom did you speak on the campus?
你在校园里和谁讲话了?(作介词宾语,置介词 后,不能用who取代。)

三、疑问代词用于对介词宾语提问时,过去的文体中介词和疑问代词通常一起放在句首,现代英语中,疑问代词在句首,介词在句未,例如:
For what do most people live and work?大部分人生活和工作的目的是什么?(旧文体)
What are you looking for?你在找什么?(现代英语)

四、疑问代词还可引导名词性从句,例如:
I can't make out what he is driving at.
我不知道他用意何在。
Can you tell me whose is the blue shirt on the bed?
你能告诉我床上的蓝衬衣是谁的吗?
Much of what you say I agree with, but I cannot go all the way with you.
你说的我大部分同意,但并不完全赞同。


疑问代词用法:
1. 疑问代词有who, whom, whose, which和what, 都是用来构成疑问句的:
Who is calling? 谁打电话来?
Whom do you want to speak to? 你想找谁接电话?
作主语时用who,作宾语时用whom,在口语中用who作宾语时也不少:
Who did you mean? 你指的是谁?
Who are you talking about? 你们在讲谁?
直接跟在介词后时只能用whom:
With whom did you come? 你和谁一道来的?
(口语中说“Who did you come with?时更多一些。)

2. 其他三个疑问代词可用作:
1)主语:
What’s your address? 你的地址怎样写?
Whose is better? 谁的好一些?
Which of these is yours? 哪一本是你的?
2)宾语:
What do you mean? 你是什么意思?
Which do you like better? 哪一个你更喜欢一些?
Whose have you chosen? 你选了谁的?
3)表语:
What’s her name? 她叫什么名字?
Whose is it? 这是谁的?
4)定语(这样用时有些字典标作形容词):
What time does the train leave? 这列火车什么时候离开?
Which room shall we stay in? 我们住哪间房?
Whose passport is this? 这是谁的护照?
形容词
简称adj.或a,形容词用来修饰名词或代词,表示人或事物的性质、状态,和特征的程度好坏与否,形容词在句中作定语,表语,宾语补足语。
她是一个好学生,她学习努力。She is a good student, and she works hard.
这辆自行车很贵。This bike is expensive.
对不起,我现在很忙。I am sorry, I'm busy now.
你为这次会议做好准备了吗? Have you got everything ready for the meeting?
形容词的语法功能:
一、作定语
He is the greatest writer alive.他是依然健在的伟大的作家。
Somewone else has done it.别人已经做了这事。
二、作补语
形容词做主语补足语和宾语补足语时,可以表示其现状、状态,也可以表示某一动作的结果,并常用在表示“认为,看待”的动词如believe,prove,consider等候。例如:
The news made her sad.这消息使他感到非常悲伤。
Don't marry young.不要早婚。
三、作状语
形容词或形容词短语可作状语,形容词作状语时,可以看作是“being+形容词”结构的省略,可表示时间、原因、条件、方式、强调或伴随状况等意义。例如:
Enthusiastic,they are co-operative.热心的时候他们是很合作的。
Rich or poor, young or old, we all have problems.不管是穷人还是富人,不管是年轻人还是老人,我们都有问题。
四、做表语
The ship was adrift on unknown seas.那艘船在陌生的海域漂流。
五、做主语
Old and young joined the discussion.
Rich or poor meant the same to him.作感叹语
Very good!Say it again.
Stupid!He must be crasy.

形容词的几个特殊用法:
most 同形容词连用而不用 the, 表示 " 极,很,非常, 十分"。
It's most dangerous to be here. 在这儿太危险。
I cannot do it, it's most difficult. 我干不了这件事,太难了。

"The+形容词比较级..., the+形容词比较级..." 表示 " 越... 就越..."。
The more you study, the more you know. 你学的越多, 就知道的越多。
The more I have, the more I want. 我越有就越想要有。
The more, the better. 越多越好。

" 形容词比较级 + and + 形容词比较级 ", 表示 " 越来越... "。
It's getting hotter and hotter. 天气越来越热了.
It's pity he is getting poorer and poorer. 真可怜他越来越穷了。
The computer is cheaper and cheaper. 计算机越来越便宜。
The more and more people focus on the meeting next year. 越来越多的人关注明年的会议。

主语+谓语(系动词)+as+形容词原形+as+从句。表示两者对比相同。
This box is as big as mine. 这个盒子和我的一样大。
This coat is as cheap as that one. 这件衣服同那件衣服一样便宜。
 I study English as hard as my brother. 我同我兄弟一样学习努力。

the + 形容词 表示某种人。
He always helps the poor. 他经常帮助穷人。
I like to have a talk with the young. 我喜欢同年轻人谈话。
The rich sometimes complain their empty life. 富人有时抱怨他们空虚的生活。
The police led the old man across the street. 警察领老人横过马路。

以-ly结尾的形容词
1) 大部分形容词加-ly可构成副词。但 friendly,deadly,lovely,lonely,likely,lively,brotherly,仍为形容词。
改错:(错) She sang lovely.             (错) He spoke to me very friendly.
   (对) Her singing was lovely.  (对) He spoke to me in a very friendly way.
2)有些以-ly 结尾的词既为形容词,也为副词。
daily,weekly,monthly,yearly,early
The Times is a daily paper.
The Times is published daily.

too+adj.+to句型   “太…而不能”
  He is too young to go to school.
 =He isn’t old enough to go to school.
 =He is so young that he can’t go to school.


形容词的位置:
1.形容词一般放在名词前作定语  
单个形容词修饰名词时,一般要放在名词的前面。它们的前面常常带有冠词、形容词性物主代词、指示代词、数词等。例如:  
a red flower一朵红花
an interesting story一个有趣的故事  
six blind men 六个盲人
my own house我自己的房子
如果有两个或两个以上的形容词修饰一个名词时,则由它们和被修饰的名词之间的密切程度而定,越密切的形容词越靠近名词。
如果几个形容词的密切程度差不多则按音节少的形容词放在前面,音节多的形容词放在后面。  
2.当形容词所修饰的词是由some,any,every,no等构成的不定代词时,形容词必须置于名词之后。例如:  
    She has something new to tell me.她有一些新的情况告诉我。  
    I have nothing important to do today.今天我没有重要的工作要做。  
    Do you know anybody else here?这儿你还有认识的人吗?  
3.形容词后面有介词短语或不定式短语时,形容词必须置于名词之后。例如:  
    It is a problem difficult to work out.这是一道难以解决的问题。  
    Edison is a student difficult to teach.爱迪生是个很难教的学生。  
    This is a kind of flowers easy to grow.这是一种易栽的花。  
4.用 and 或 or 连接起来的两个形容词作定语时一般把它们放在被修饰的名词后面。起进一步解释的作用。例如:  
    All people,young or old,should be strict with themselves.  
    所有的人,无论老少,都应该严格要求自己。  
    We are building a new school, modern and super.  
    我们正在建一所现代化的高档次的新型学校。  
    All countries, rich and poor, should help one another. 所有的国家,无论穷富都应该互相帮助。  
5.有少数形容词,如enough和possible,既可置于所修饰的名词前面也可以置于它所修饰的名词之后。例如:   
Do you have enough time(time enough)to prepare?你有足够的时间做准备吗?   
Maybe it will be a possible chance(chance possible)for you.或许它将成为一次可能的机遇。
6.有些形容词,置于名词之前与之后,含义不尽相同。例如:  
the writer present 出席的作者  
the present writer 现在的作者
7.表示长,宽,高,深,及年龄的形容词,应放在相应的名词之后。
This river is about 100 metres wide.
The building is more than 50 metres tall.
 He is less than 40 years old.
8. enough修饰名词时,在名词前后都可以。
They said that they had enough food.= They said that they had food enough.
 enough 修饰形容词和副词,位于其后。
 He is old enough to join the army.
 He isn’t old enough to go to school.
9.形容词else通常放在疑问代词,疑问副词或不定代词后
 what/who/where/when/when else
 something/anything/nothing…else
 What else did you do?
 Do you have anything else to say?
10.由两个或两个以上的词组成的形容词词组修饰名词时须放在名词之后。
This is the book easy to read.
这是一本容易读的书。


形容词知识拓展:
名词化的形容词:
有些形容词可以和定冠词连用,表示一类人或事物,这时,它相当于一个名词,可作主语或宾语;
表示一类人时,看作复数,表示一类事物时,通常看作单数。
Robin Hooh(罗宾汉) hated the rich and loved the poor.
The old are taken good  care of in American.
the+形容词,常见的短语有:
the old/the young/the sick/the white/
the black/the rich/the poor/the dead(死者)

形似副词的形容词:
以-ly结尾的词通常是副词,但是下列词为形容词。
friendly  lonely (孤独的) ;lively (活着的);lovely(可爱的)

复合形容词的类型:
(1)名词+过去分词  man-made satellite 人造卫星
(2)形容词+现在分词  a good-looking man
(3)形容词+名词  second-hand cars
(4)数词+名词-ed   three-legged chairs三条腿的椅子
(5)数词+名词  400- metre race
(6)副词+现在分词  hard-working students
(7)副词+过去分词  well-known writers
(8)形容词+形容词  a dark-red jacket
(9)形容词+过去分词  ready-made clothes 成品服装

含有形容词的常用句型:
(1) It’s+adj. of sb. to do sth.
(good/ kind/nice/polite/clever/foolish… )
It’s very kind of you to help me.
(2) It’s +adj. for sb. to do sth.
(difficult/easy/hard/dangerous/usefulinteresting/important…)
It’s important for us to learn English well.
(3)下列形容词后常跟动词不定式
 表示情感或情绪的形容词:glad,pleased,sorry,sad,afraid,thankful…
 I'm glad to see you.
表示能力,意志或推测的形容词:ready,able,sure,certain…
 I’m sorry to hear that.

某些现在分词和过去分词可作形容词
the moving story 令人感动的故事
a moved boy   一个被感动的男孩
a frightened child 一个被吓到的孩子
a frightening film 一个恐怖电影
副词:
是一种用来修饰动词、形容词、全句的词,说明时间、地点、程度、方式等概念的词。副词是一种半虚半实的词。
副词可分为:地点副词、方式副词、程度副词、疑问副词和连接副词。
副词连用顺序:程度副词+方式副词+地点副词+时间副词。

副词分类:
1、时间副词有三类:always, often, usually, sometimes, never, ever, hardly等一般位于系动词、情态动词和助动词之后,实之前义动词
1)表示发生时间的副词:
It’s beginning to rain now!  现在开始下雨了!
2)表示频繁程度的副词,也称频度副词always, often, usually, sometimes, never, ever, hardly等一般位于系动词、情态动词和助动词之后,实之前义动词:
She often changes her mind.  她常改变主意。
3)还有一些其他表示时间的副词:
 He has just had an operation. 他刚动过手术。
2、地点副词:
1)有不少表示地点的副词:
She is studying abroad.  她在国外留学。
2)还有一些部分与介词同形的副词。它们与介词同形,跟宾语的是介词,否则是副词:
①用作介词:Stand up!  起立!
②用作副词:A cat climbed up the tree.  猫爬上了树。
3)以where 构成的副词也是地点副词: 
It’s the same everywhere.  到处都一样。
3、方式副词:
carefully, properly(适当地), anxiously(焦虑地), suddenly, normally(正常地), fast, well, calmly(冷静地), politely(有礼貌地), proudly(自豪地), softly, warmly ,slowly
4、程度副词:
much,little, very,rather(相当),so,too,still, quite, perfectly(完美地), enough, extremely(非常), entirely(整个),almost, slightly(细小地), hardly.
5、疑问副词:
how, when, where, why.
6、关系副词:
when, where, why.等。
7、 连接副词:
therefore(因此),moreover(此外),however,otherwise(另外的),then,when ,where,how,why等。

副词的语法作用:
副词在句中可作状语,表语,补语,定语。
He works hard. (作状语)
他工作努力。
You speak English very well. (作状语)
你英语讲的相当好。
Is she in ? (作表语)
她在家吗?
Let's be out. (作表语)
让我们出去吧。
Food here is hardly to get. (here作定语,hardly作状语)
这儿很难弄到食物。
Let him out!(作补语)
让他出去!
修饰名词的副词放在被修饰词之后
a. The villagers there are busy getting in wheat.


不同类型副词的用法比较:
方式副词:
1)英语中有大量方式副词,说明行为方式(回答how的问题):
How beautifully your wife dances.  你夫人舞跳的真美。
2)还有相当多的副词,表示某些情绪:
She smiled gratefully.  她感激的笑了笑。
3)还有一些以-ly结尾的副词,表示动作发生的状况:
He left the town secretly. 他悄然离开了这座城市。

程度副词和强调副词 :
1)程度副词可修饰动词,表示“到某种程度”:   Is she badly hurt?  她伤得重吗?
  [说明] 这类副词除修饰动词外,还可修饰形容词(a)或另一副词(b):
a. fairly simple 相当简单      quite correct 完全正确
b. wonderfully well 好极了    do it very quickly 干得很快
2)much 是一个特殊的程度副词,它可以:
a. 修饰形容词等:
I’m not much good at singing. 我唱歌不太好。
 b. 修饰比较级:
You sing much better than me. 你比我唱的好多了。
Their house is much nicer than ours. 他们的房子比我们的好多了。

疑问副词和连接副词:
1)疑问副词:疑问副词用来引导特殊问句:
how: How is your grandmother? 你奶奶身体好吗?
where: Where does she come from? 她是哪儿人?
when: When can you come? 你什么时候能来?
why: Why was he so late? 他为什么来得这么晚?
2)连接副词:连接副词意思和词形都和疑问副词一样,但都引导从句或与不定式连用:
how: Do you know how to start this machine? 你知道这台机器怎样启动吗?
where: I don’t know where he lives. 我不知道他住在哪儿。(引导宾语从句)
when: Tell me when you’ll be ready. 告诉我你什么时候准备好。(引导宾语从句)
why: That’s why I came round. 这就是我来的原因。(引导表语从句)

一些其它类型的副词,如表示方向的副词:
Let’s go inside. 咱们到里面去。
Take two steps forward. 向前走两步。


副词的位置:
1、实义动词前,be动词、情态动词之后。
I am also Bush.
I can also do that.
I also want to play that games.
I get up early in the morning everyday. 我每天早早起床。
He gave me a gift yesterday. 他昨天给了我一件礼物。
She didn't drink water enough. 她喝的水不够。
The train goes fast. 火车跑得快。
We can go to this school freely. 我们可以免费到这家学校学习。
They left a life hardly then. 当时他们的生活很艰难。
He has a new hat on today. 他今天戴了一顶新帽子。
I have seen this film twice with my friends. 这部电影我和朋友看过两次。

2、副词修饰形容词,副词时,副词在前面,而被修饰的词在后面。
It's rather easy, I can do it. 这很容易,我能做到。
He did it quite well. 他做得相当好。
It's rather difficult to tell who is right.很难说谁是对的。
It's so important that I must tell my friends. 这件事太重要了,我得告诉我的朋友。
It's much better. 好多了。

3、频度副词可放在实义动词的前面,情态动词和助动词的后面。
I often help him these days. 这些日子我经常帮助他。
I always remember the day when I first came to this school.
我常常记得我第一次来学校的那一天。
You mustn't always help me. 你不能老是帮助我。
He seldom comes to see us. 他很少来看我们。
We usually go shopping once a week. 我们通常一周买一次东西。
The new students don't always go to dance. 新学生并不时常去跳舞。

4、疑问副词,连接副词,关系副词以及修饰整个句子的副词,通常放在句子或从句的前面。
When do you study everyday? 你每天什么时间学习?
Can you tell me how you did it? 你能告诉我你如何做的吗?
First, let me ask you some questions. 先让我来问几个问题。
How much does this bike cost? 这辆车子多少钱?
Either you go or he comes. 不是你去就是他来。
The students were reading when the teacher came into the classroom. 当老师进教室时,学生们正在读书。

5、时间副词和地点副词在一个句中, 地点副词在前面时间副词在后面。
We went shopping in the supermarket at 9 o'clock yesterday.
昨天九点钟我们到超市买东西了.
What were you doing in the classroom yesterday afternoon?
昨天下午你在教室里干什么?
The accident took place in the Eleven Avenue one hour ago.
一小时前十一号大街发生了一场事故。

6、否定副词在句首,句子要倒装,如:
Never have I felt so excited!
兼有两种形式的副词:
1) close与closely
close意思是"近"; closely 意思是"仔细地"
He is sitting close to me.
Watch him closely.

2) late 与lately
late意思是"晚"; lately 意思是"最近"
You have come too late.
What have you been doing lately?

3) deep与deeply
deep意思是"深",表示空间深度;deeply时常表示感情上的深度,"深深地"
He pushed the stick deep into the mud.
Even father was deeply moved by the film.

4) high与highly
high表示空间高度;highly表示程度,相当于much
The plane was flying high.
I think highly of your opinion.

5) wide与widely
wide表示空间宽度;widely意思是"广泛地","在许多地方"
He opened the door wide.
English is widely used in the world.

6) free与freely
free的意思是"免费";freely 的意思是"无限制地"
You can eat free in my restaurant whenever you like.
You may speak freely; say what you like.
副词有加a或ly的 区别在于通常加a 的副词描述一种状态,而加ly 的副词则倾向于感觉。
语态:
是动词的一种形式,它表示主语和谓语的关系。
语态有两种:主动语态和被动语态。
如果主语是动作的执行者,或者是说动作是由主语完成的,要用主动语态;
如果主语是动作的承受者,或者是说动作不是由主语而是由其他人完成的,则用被动语态。
被动语态的构成:
被动语态的基本结构:
主语+be +过去分词(+by+动作的发出者)
① 一般现在时:am/is/are+过去分词
如:Trees are planted every year.
② 现在进行时 am/is/are+ being +过去分词
如:The road is being repaired. 
③ 现在完成时 have/has + been +过去分词
如:The work has been finished.
④ 一般过去时 was/were + 过去分词
如:The story was told by him.
Many birds were killed last year.
⑤过去进行时 was/were+ being + 过去分词
如: The new house was being painted when I got home.
⑥过去完成时 had +been+ 过去分词
如: He told me that the work had been finished.
⑦一般将来时  will +be + 过去分词
如:The problem will be discussed tomorrow.
⑧ 过去将来时 would/should +be +过去分词
如: He said that the Christmas tree would be put up soon.
⑨情态动词的被动语态
情态动词+ be +过去分词    
如:The problem must be solved soon.
Children should be taught to love animals.
被动语态使用注意:
1. 不及物动词无被动语态。 如:happen, break down, come out......
What will happen in 100 years.
The dinosaurs disappeared about 65 million years ago.
2. 有些动词用主动形式表示被动意义。 如: write, sell, ride.....
This pen writes well.
This new book sells well.
3. 感官动词或使役动词使用省略to的动词不定式,主动语态中不带“to”,但变为被动语态时,须加上“to”。
例:make somebody do something→somebody+ be +made to do something
see somebody do something→somebody +be +seen to do something
A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by.
The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss.
4. 如果是接双宾语的动词改为被动语态时,直接宾语(物)作主语,那么动词后要用介词,这个介词是由与其搭配的动词决定。
He gave me a book.→A book was given to me by him.
He showed me a ticket.→A ticket was shown to me by him.
My father bought me a new bike. →A new bike was bought for me by my father.
5. 一些动词短语用于被动语态时,动词短语应当看作一个整体,而不能丢掉其中的介词或副词。
We can’t laugh at him. →He can’t be laughed at by us.
He listens to the radio every day. →The radio is listened to by him every day.
The nurse is taking care of the sick man. →The sick man is being taken care of by the nurse.
构成be+done.
主动句变为被动句所遵循的4个步骤:
①把原主动句中的宾语变为被动句的主语
②把动词变为被动形式即be +过去分词,并注意其人称和数随主语的变化,而动词的时态则保持不变。
③原主动句的主语如需要则放在by后面以它的宾格形式出现(注代词的宾格),如不需要则可省略。
④其它的成分(定语、状语)不变。

不用于被动语态的情形:
①不及物动词没有被动语态
这类动词有take place, happen, come about, break out, appear, disappear, last,  arise等。
例如:A fire broke out during the night.
②某些静态动词不用于被动语态
这类动词有have, lack, fit, hold, suit, resemble等。 
例如:My shoes do not fit me.
③宾语为相互代词和反身代词时不用于被动语态
例如:We should help each other.

关于主动形式表示被动意义:
①系动词(如look, sound, smell, feel, taste, prove等)要用主动表被动,因为系动词为不及物动词,它们没有被动语态形式。
例如:The building looks very beautiful.
②当open, close, shut, lock, move, read, wash, clean, cook, cut, wear, carry 等用作不及物动词且表示主语的某种属性时,通常用主动形式表示被动意义。
例如:The book sells well.
③有的动词本身含有被动意味,通常用主动形式来表示被动含义。
例如:Her eyes filled with tears.
④不定式to blame, to let用作表语时,通常要用主动表被动。
例如:Who is to blame?
⑤某些“be+形容词+to do”结构中的不定式通常要用主动形式表示被动意义。
例如:The book is difficult to understand.
⑥不定式用于某些动词(如have, have got, get, want, need等)的宾语后作定语时,如果不定式的逻辑主语就是句子的主语,通常用主动形式表示被动意义。
例如:Do you have time to help us?
⑦在too...to do sth.和...enough to do sth. 这两个结构中,若主语与其后不定式为to do sth.被动关系,则该不定式通常用主动形式表示被动意义(有时也可直接用 被动式)。
例如:The writing is too faint to read.
⑧be worth后的动名词要用主动表被动。
例如:This movie is worth seeing.
⑨在need, want, require等少数表示“需要”的动词后的动名词用主动形式表示被动意义。
例如:The house needs cleaning.

表示“据说”的三类被动句型:
①It is said that...句式
例如:It is said that thirteen is an unlucky number.
②There is said that...句式 
例如:There is said to be plenty of oil off our coast.
③sb./sth.is said that...句式
例如:Mr. Brown is said to have died of liver cancer.
被动语态各时态构成 :

时态

被动语态 

一般现在时

am/is/are+过去分词

一般过去时

was/were+过去分词

现在进行时

am/is/are being+过去分词

过去进行时

was/were being+过去分词

一般将来时

will be+过去分词

过去将来时

would be+过去分词

现在完成时

have/has been+过去分词

过去完成时

had been+过去分词

情态动词

情态动词be+过去分词


情态动词的被动语态:
一、理解含情态动词的被动语态的概念含情态动词的被动语态说明某个被动性动作所反映出的感情和态度。
初中阶段可用于被动语态的情态动词有“can、may、must、need、should”等,
分别表示“能够被……”,“可以被……”,“必须被……”,“需要被……“,应该被……”等。

二、掌握含情态动词的被动语态的不同句式的变换方法含情态动词的被动语态的疑问句、否定句的变化均借助于情态动词完成。
(一)一般疑问句直接将陈述句被动语态中的情态动词提前。如:
Mustthisworkbedoneatonce?这项工作必须立即完成吗?
Shouldyourhomeworkbefinishedbeforesix?你的家庭作业应在六点前完成吗?
(二)特殊疑问句由疑问词加上一般疑问句被动语态构成。如:
Whenmustthisworkbedone?这工作必须在什么时候完成?
Wherecanthelostbookbefound?这本失踪的书能在什么地方被找到?
(三)反意疑问句借助情态动词构成附加疑问部分。如:
Thisbridgecanbebuiltnextyear,can'tit?这座桥明年能建成,是吗?
Thisbookshouldn'tbetakenoutofthelibrary,shouldit?这本书不应被带出图书馆,是吗?
(四)否定句在情态动词后面加上“not”或“never”即可,但“must”表“必要”时否定式为“needn't”。如:
Thisworkneedn'tbedoneatonce.这项工作没必要立即做。Thisdustbinshouldn'tbeputhere.这个垃圾箱不应放在这儿。

三、含情态动词的被动语态的一般疑问句的回答含情态动词的被动语态的一般疑问句的回答应保留原情态动词,
但“must”表“必须”时,其否定回答应用“needn't”、“need”表“必要”时,其肯定回答应用“must”。如:
—Shouldmyexercisesbefinishedtoday?我的作业应在今天完成吗?
—Yes,theyshould.是的,应在今天完成。(No,theyshouldn't.不,不应在今天完成。)
—Musthisexercisebookbehandedinatonce?他的练习本必须立即上交吗?
—Yes,itmust.是的,必须立即上交。(No,itneedn't.不,不必立即上交。)
—Needhebeoperatedonatonce?他必须立即手术吗?
—Yes,hemust.是的,他必须。(No,heneedn't.不,他不必。)
动词不定式:
指由to加上动词原形(而且只能是动词原形)所构成的一种非限定性动词,但在有些情况下to可以省略。
动词不定式在语法功能上可作主语、宾语、宾语补足语、表语、定语和状语。
动词不定式可以作以上各种成分,但它毕竟是动词,所以有动词的属性。
动词不定式及其短语还可以有自己的宾语、状语,虽然动词不定式在语法上没有表面上的直接主语,但它表达的意义是动作,这一动作一定由使动者发出。
这一使动者我们称之为逻辑主语,其形式如下:
时态 主动形式  被动形式 
一般式 (not) to do (not) to be done
完成式 (not) to have done (not) to have been done
进行式 (not) to be doing  
完成进行式 (not) to have been doing  

不定式的用法:
1、不定式作主语
例如:To remember this is very important.
注意:为了避免头重脚轻,在许多情况下,通常都将作主语的不定式置于句子后部,而在句首主语位置使用形式主语it。
例如:It is very important to remember this.
2、不定式作表语
例如:He seems to be ill.
注意:不定式作表语主要有三种情况,一是用于seem, appear, prove等系动词之后的不 定式(尤其是to be),
二是像My job is to sweep the floor. 这样的主语与表语“等价”的情形,
三是表示想法、约定、义务、命令、可能性、命运等,如: 
You are to come when I call.
3、不定式作宾语
例如:I can not afford to buy a car.
注意:
①不定式不仅用作动词的宾语,还可用作个别介词(but, except)的宾语。
例如:I had no choice but to wait.
②当作宾语的不定式后跟有宾语补足语时,通常要用形式宾语it代替不定式,并将真正的宾语不定式置于宾语补足语之后
例如:I find it difficult to learn Japanese well.
4、不定式作宾语补足语
例如:Who taught you to drive?
5、不定式作定语
例如:I have a question to ask you.
注意:有的名词(如way, chance, right等)后用作不定式可换成of doing sth.
如:It is the best way to do (of doing) it.
但是以下名词后接不定式作定语时通常不能换成of doing sth.
attempt  courage  decision  effort  fortune  failure  invitation  wish
6、不定式作状语
例如:I went to France to learn French.
一般过去时:
表示过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为;过去主语所具备的能力和性格。
基本结构:
主语+动词过去式+其他;
否定形式①was/were+not;②在行为动词前加didn't,同时还原行为动词;
一般疑问句Did+主语+do+其他。
一般过去时句法结构:
肯定形式
主语+动词过去式+其他
例句:She often came to help us in those days.
否定形式
①was/were+not;②在行为动词前加didn't,同时还原行为动词
例句:I didn't know you like coffee
一般疑问句
①Did+主语+do+其他? ②WasWere+主语+表语?
例句:Did I do that?
用表格整理如下:
肯定式 疑问式 否定式 疑问否定式
Iworked Did I work? I did not work Did I not work?
He(She,It) worked Did he(she,it) work? He(she,it) did not work Did he(she,it) notwork?
We worked Did we work? We did not work Did we not work?
You worked Did you work? You did not work Did you not work?
They worked Did they work? They did not work Did they not work?
记忆口诀:
一般过去时并不难,过去动作、状态记心间。
动词要用过去式,时间状语句末站。
否定句很简单,didn't 站在动原前,其它部分不要变。
一般疑问句也好变,did放在句子前,主语、动原、其它部分依次站。
特殊疑问句也简单,疑问词加一般疑问句记心间。
最后一条请注意,动词过去式要牢记!

一般过去时中动词过去式变化规则:

构成

举例

一般情况

词尾+ed

动词原形

过去式和过去分词

look
talk

looked
talked

以不发音字母e结尾

词尾+d

like
arrive

liked
arrived

以“辅以字母+y”结尾

变y为i,再加ed

fly
study

flied
studied

以重读闭音节结尾,且末尾只有一个辅音字母

双写词尾+ed

stop
plan

stopped
planned 


结构句型:

1.一般句子
I watched TV last night.
2.一般疑问句
Did you watch TV last night?
3.there be 句型
There was an apple on the table last night.
Was there an apple on the table last night
一般过去时注意事项:
1.注意主句与从句中时态的一致性
如果主句用了过去时,从句中一般也要用过去式,或者过去进行时、过去完成时等。例如:
He believed that he was right. 他相信自己是对的。
I didn’t know you were here. 我不知道你在这儿。
I thought they were with you. 我以为他们和你在一起。

2.在口语中, 一般过去时并不一定指真正的过去,而只是表示一种礼貌性语气。例如:
I wondered (wonder) if you could do me a favor. 不知你可否帮我一个忙。
I wanted (want) to ask if I could borrow your car. 我想问问可否借用你的车。
I hoped (hope) you could (can) give me some advice. 我希望你能帮我出点主意。
Did (Do) you want to see me? 你想见我吗?

3.used to
used to 是一个词组,表示“过去曾经是……而现在已经停止了”的动作。例如:
I used to work fourteen hours a day. 我过去常常一天干十四个小时。(而现在不这样了)
I used to take a walk in the morning.我过去是在早晨散步。(而现在不在早晨散步了)
一般过去式用法:
(1)一般过去时表示在过去某个特定时间发生,也可以表示过去习惯性、经常性的动作。
一般过去时不强调动作对现在的影响,只说明过去的事情。
句式:主语+动词过去式+宾语+其它
I had a word with Julia this morning.今天早晨,我跟茱莉雅说了几句话。
He smoked many cigarettes a day until he gave up. 他没有戒烟的那阵子,抽烟抽得可凶了。

(2) 一般过去时常与表示过去的时间状语或从句连用,如:
yesterday,last week ,in  the  past ,in 1993,at that time,once,during the war,before,a few days ago,when 等等.
(句子中谓语动词是用一般过去时还是用现在完成时,取决于动作是否对现在有影响)。
Have you had your lunch? 你吃过午饭了吗?(你现在不饿吗?)
Yes,I have. 是的,我已经吃过了。(已经吃饱了,不想再吃了。)
When did you have it? 你是什么时候吃的?(关心的是吃的动作发生在何时。)
I had it about ten minutes ago. 我大约是十分钟以前吃的。)
Used to do something 表示过去常做而现在已经停止了的习惯动作。
I used to work fourteen hours a day. 我过去常常一天干十四个小时。
I ate it at 6:45。我在六点四十五分吃了。

(3)带有确定的过去时间状语时,要用过去时。如:
yesterday(昨天)、two days ago…(两天前…… )、last year…(去年…)、the other day(前几天)、
once upon a time(很久以前)、 just now(刚才)、in the old days(过去的日子里)、before liberation(解放前…)、
When I was 8 years old(当我八岁时…)、at+一个时间点
Did you have a party the other day?前几天,你们开了晚会了吗?
Lei Feng was a good soldier.雷锋是个好战士。
注:在谈到已死去的人的情况时,多用过去时。

(4)表示过去连续发生的动作时,要用过去时。这种情况下,往往没有表示过去的时间状语,而通过上下文来表示。
The boy opened his eyes for a moment,looked at the captain,and then died.
那男孩把眼睛张开了一会儿,看看船长,然后就去世了。

(5)表示过去一段时间内经常或反复的动作。常与always,never等连用。
Mrs. Peter always carried an umbrella.彼得太太过去老是带着一把伞。
(只是说明她过去的动作,不表明她现在是否常带着伞。)
比较:
Mrs. Peter always carries an umbrella.彼得太太老是带着伞。
(说明这是她的习惯,表明她现在仍然还习惯总带着一把伞)
Mrs. Peter is always carrying an umbrella.彼得太太 总是带着一把伞。
(表示说话者对这一动作或行为厌烦)
I never drank wine.我以前从不喝酒。
(不涉及到现在,不说明现在是否喝酒)

(6)如果强调已经终止的习惯时要用 used to do(过去常常做,而现在不那样做了)
He used to drink alcohol.他过去喝酒。
(意味着他现在不喝酒了。喝酒这个动作终止了)
I used to take a walk in the morning.我过去是在早晨散步。
(意味着现在不在早晨散步了)
比较:
I took a walk in the morning.我曾经在早晨散过步。
(只是说明过去这一动作)

(7)有些句子,虽然没有表示过去确定时间的状语,但实际上是指过去发生的动作或存在的状态的话,也要用过去时。
I didn''t know you were in Paris.我不知道你在巴黎。
(因为在说话时,我已经知道你在巴黎了。这句话指的是说话之前,所以只能用过去时表示。实际上,这句话暗指:But now I know you are here.)
I thought you were ill.我以为你病了呢。
(这句话应是在说话之前,我以为你病了。但是现在我知道你没病)
一般过去时三变技巧:
一变:肯定句变为否定句
技巧1.当句中含有情态动词或助动词could,would,should等时,可直接在其后面加not构成否定句。例如:
I could get you a concert ticket. → I could not / couldn't get you a concert ticket.
技巧2.当句中含有系动词was,were 时,可直接在其后加not构成否定句。例如:
I was on the Internet when you called me. → I was not / wasn't on the Internet when you called me.
技巧3.当句中谓语是除情态动词、助动词、系动词was, were以外的动词时,在该动词之前加did not / didn't,动词还原,构成否定句。例如:
The famous singer sang some Chinese songs. → The famous singer did not / didn't sing any Chinese songs.

二变:陈述句变为一般疑问句
技巧1.移动词语的位置。将was,were, could,would,should等移到句首。例如:
He could pack his things himself. → Could he pack his things himself?
技巧2.添加助动词did。谓语是除情态动词、助动词、系动词was, were以外的动词时,在主语之前加did,动词还原。例如:
Mr Li looked very old. → Did Mr Li look very old?

三变:陈述句变为特殊疑问句
技巧1.确定疑问词:人who / whom,物what,地点where,时间when / what time,原因why,频率how often,长度how long,距离how far等等。例如:
They gave the concert last night. → When did they give the concert?
技巧2.辨认结构形式:疑问词+情态动词/助动词/ was / were / did +主语+...? 例如:
The accident happened near the station. → Where did the accident happen?
反义疑问句:
表示提问人的看法,没有把握,需要对方证实。
反意疑问句由两部分组成:前一部分是一个陈述句,后一部分是一个简短的疑问句,两部分的人称时态应保持一致。
1. 陈述部分肯定式+疑问部分否定式可记为前肯后否。 
2. 陈述部分否定式+疑问部分肯定式可记为前否后肯。
例如:This pencil is red, isn’t it? Yes, it is. / No, it isn’t. 
               This pencil isn’t red, is it? Yes, it is. / No, it isn’t.
速记:
前肯后否,前否后肯,前be后be,前无be后加助,时态一致。

反意疑问句的回答
前肯后否,前否后肯,根据事实从后往前翻译。如:
(1)They work hard,don’t they?他们努力工作,不是吗?
Yes, they do.对,他们工作努力。/No, they don't.不,他们工作不努力
(2)They don’t work hard, do they? 他们不太努力工作,是吗?
Yes, they do. 不,他们工作努力。/No, they don't. 是的, 他们工作不努力

否定反义疑问句的回答
当陈述部分为肯定式,反义疑问句为否定式时,其回答一般不会造成困难,一般只需照情况回答即可:
"It’s new, isn’t it?" "Yes, it is." “是新的,不是吗?”“是,是新的。”
"He wants to go, doesn’t he?" "No, he doesn’t." “他想去,不是吗?”“不,他不想去。”
此时,"Yes"即是,对前面"It's new."的肯定。

回答反义疑问句的原则
回答反意疑问句通常应根据实际情况来确定,
如有人问你You are asleep, aren’t you? 你应回答No, I’m not. 因为既然你能回答,肯定你还没有asleep。
但如果别人问你 You aren’t asleep, are you?(你还没有睡着,对吗),你也只能回答No, I’m not.(是的,还没有睡着),而不能回答为Yes, I’m not. 也不能回答成 Yes, I am.
“It is a beautiful flower,isn't it?” “It isn't a beautiful flower,is it?”
上述两句句子的回答肯定均为“Yes,it is."否定为“No,it isn't."
由上述例子可知,反义疑问句回答与句子本身所包含的中文肯定与否的含义并无太大关联,只需注意事实,肯定即用yes,否定用no,无需考虑句子原本是前否后肯或是前肯后否。

口诀:
反意疑问并不难,陈述疑问句中含。
前后肯否恰相反,否定词缀不能算。
主谓时态要一致,特殊情况记心田。
实际情况来回答,再把yes和no拣。
综上所述,反义疑问句回答就是按实际情况回答。
对反意疑问句的回答,无论问题的提法如何,如果事实是肯定的,就用yes,事实是否定的,就要用no。
要特别注意陈述句部分是否定结构,反意疑问句部分用肯定式提问时,回答yes或no与汉语正好相反。这种省略回答的yes要译成“不”,no要译成“是”。
例:
—He likes playing football, doesn’t he? 他喜欢踢足球,不是吗?
—Yes, he does. / No, he doesn’t. 是的。/ 不是。
—His sister didn’t attend the meeting, did she? 他妹妹没有参加会议,是吗?
—Yes, she did. / No, she didn’t. 不,她参加了。/ 是的,她没参加。


快速记忆表:
陈述部分的谓语   疑问部分
I/主语   aren't I / are I
no,nothing,nobody,never,few, seldom, hardly,rarely, little等否定含义的词   肯定含义
含有un-,in-.dis-,im-等否定意义的前缀构成的词语时,视为肯定含义   否定含义
ought to(肯定的)   shouldn't/ oughtn't +主语
have to+v.(had to+v.)   don't +主语(didn't +主语)
used to+v.   didn't +主语或 usedn't +主语
had better + v.   hadn't you
would rather + v.   wouldn't +主语
you'd like to + v.   wouldn't +主语
must   根据实际情况而定
感叹句   be +主语
指示代词或不定代词everything,that,nothing,this   主语用it
并列复合句   谓语根据邻近从句的谓语而定
定语从句,宾语从句主从复合句   根据主句的谓语而定
think,believe,expect,suppose,imagine等引导   与宾语从句相对应的从句
everybody,anyone,somebody,nobody,no one   复数they, 单数he
情态动词dare或need   need/needn't (dare/daren't ) +主语
dare, need 为实义动词   do/don't +主语
省去主语的祈使句   will/won't you?
Let's 开头的祈使句   Shall we?
Let us 开头的祈使句   Will you?
there be   相应的谓语动词+there(省略主语代词)
否定前缀不能视为否定词   仍用否定形式.
反意疑问句19条:
1) 陈述部分的主语是I,疑问部分要用 aren't I.
I'm as tall as your sister,aren't I?
2) 陈述部分的谓语是wish,疑问部分要用may +主语。
I wish to have a word with you, may I?
3) 陈述部分用 no, nothing, nobody, never, few, seldom, hardly, rarely, little等否定含义的词时,疑问部分用肯定含义。
The Swede made no answer, did he / she?
Some plants never blown (开花), do they ?
4) 含有ought to 的反意疑问句,陈述部分是肯定的,疑问部分用shouldn't / oughtn't +主语。
He ought to know what to do, oughtn't he? / shouldn't he?
5) 陈述部分有have to +v. (had to + v.),疑问部分常用don't +主语(didn't +主语)。
We have to get there at eight tomorrow, don't we?
6) 陈述部分的谓语是used to 时,疑问部分用didn't +主语或 usedn't +主语。
He used to take pictures there, didn't he? / usedn't he?
7) 陈述部分有had better + v. 疑问句部分用hadn't you?
You'd better read it by yourself, hadn't you?
8) 陈述部分有would rather +v.,疑问部分多用 wouldn't +主语。
He would rather read it ten times than recite it, wouldn't he?
9) 陈述部分有You'd like to +v. 疑问部分用wouldn't +主语。
You'd like to go with me, wouldn't you?
10) 陈述部分有must 的疑问句,疑问部分根据实际情况而定。
He must be a doctor, isn't he?
You must have studied English for three years, haven't you? / didn't you?
He must have finished it yesterday, didn't he?
11) 感叹句中,疑问部分用用否定的助动词加sb/sth?如:
1)What a fine day it is today!
What a fine day it is today,isn“t it?
2)How fast he runs!
How fast he runs,doesn”t he?
3)What a long time we have been waiting!
What a long time we have been waiting ,haven“t we?
12) 陈述部分由neither… nor, either… or 连接的并列主语时,疑问部分根据其实际逻辑意义而定。
Neither you nor I am engineer, are we?
13) 陈述部分主语是指示代词或不定代词everything, that, nothing, this, 疑问部分主语用it。
Everything is ready, isn't it?
14)陈述部分为主语从句或并列复合句,疑问部分有三种情况:
a. 并列复合句疑问部分,谓语动词根据邻近从句的谓语而定。
Mr. Smith had been to Beijing for several times, he should have been in China now, shouldn't he?
b. 带有定语从句,宾语从句的主从复合句,疑问部分谓语根据主句的谓语而定:
He is not the man who gave us a talk, is he?
He said he wanted to visit Japan, didn't he?
c. 上述部分主句谓语是think, believe, expect, suppose, imagine等引导的定语从句,疑问部分与宾语从句相对应构成反意疑问句。
I don't think he is bright, is he?
We believe she can do it better, can't she?
15) 陈述部分主语是不定代词everybody, anyone, somebody, nobody, no one等,疑问部分常用复数they,有时也用单数he。
Everyone knows the answer, don't they? (does he?)
Nobody knows about it, do they? (does he?)
16) 带情态动词dare或need的反意疑问句,疑问部分常用 need (dare ) +主语。
We need not do it again, need we ?
He dare not say so, dare you?
当dare, need 为实义动词时,疑问部分用助动词do + 主语。
She doesn't dare to go home alone, does she?
17) 省去主语的祈使句的反意疑问句,疑问部分用will you。
Don't do that again, will you?
Go with me, will you / won't you ?
注意: Let's 开头的祈使句,后用shall we?
Let us 开头的祈使句,后用will you?
Let's go and listen to the music, shall we?
Let us wait for you in the reading-room, will you ?
18) 陈述部分是"there be"结构的,疑问部分用there省略主语代词。
There is something wrong with your watch, isn't there?
There will not be any trouble, will there?
19) 否定前缀不能视为否定词,其反意疑问句仍用否定形式。
It is impossible, isn't it?
He is not unkind to his classmates, is he?
有些动词如:cost hurt hit put 等,它们的过去时与原型相同,在肯定句中一定要先弄清楚它们是什么时态.
英语18种特殊的反意疑问句:
1.祈使句。祈使句后一般加上will you或won't you构成反意疑问句,用will you 多表
示“请求”,用won't you 多表示提醒对方注意。例如:    
Look at the blackboard, will you/ won't you?看黑板,好吗?   
Let 引导的祈使句有两种情况:   
1) Let's...后的反意疑问句用shall we或shan't we。例如:   
Let's go home, shall we/ shan't we? 回家吧,好吗?    
还可以用may I来表示征求对方的同意或许可。   
2) Let us/me...后的反意疑问句用will you或won't you。例如:    
Let me have a try, will you/won't you? 让我试一试,行吗?   
2. 感叹句。感叹句后加反意疑问句时,其反意疑问句需用be的一般现在时态的否定形式。 例如:   
What fine weather, isn't it? 多好的天气啊,是吧?    
3. 当陈述部分谓语动词是need, dare, used to,且这些词被用作实义动词时,其反意疑问 句需用do的适当形式。例如:   
He needs help, doesn't he? 他需要帮助,是吗?    
4. 陈述部分主、谓语是I am...时,反意疑问句用aren't I 或am't I ,而不是am not I (可 用a m I not)。例如:   
I'm working now, am't I? 我在工作,是吗?   
5. 陈述部分的主语是everything, nothing, anything或something 时,反意疑问句的主语应用代词it。例如:    
Something is wrong with my radio, isn't it? 我的收音机出毛病了,是吧?   
6. 陈述部分的主语是 everybody, everyone, anybody, anyone, somebody, someone, nobody, no one, none, neither 时, 其反意疑问句的主语需用复数代词they。 例如:   
Everyone is here, aren't they? 大家都到了,是吗?   
No one knows about it, do they? 没有人知道这件事,对吗?   
7. 陈述部分的主语是指示代词this或that时,反意疑问句的主语用it,当陈述部分的主语是指示代词these或those时,其反意疑问句的主语用they。 例如:   
This is a plane, isn't it? 这是一架飞机,是吗?   
These are grapes,aren't they? 这些是葡萄,是吗?   
8. 陈述部分的主语是不定代词one时,反意疑问句的主语可以用one,也可用you(美式英语用he)。例如:   
One should be ready to help others, shouldn't one? 每个人都应该乐于助人,是吧?   
9. 当陈述部分含有以下这些含有否定意义的词时:few, little, seldom,hardly, never, not,  no, no one, nobody, nothing, none, neither等,其反意疑问句需用肯定结构。 例如:    
He is never late for school, is he? 他上学从不迟到,是吗?   
10. 当陈述部分所含的否定词是通过加前缀或后缀构成的,其后的反意疑问句依然用否定结构。例如:   
   It is unfair, isn't it? 这不公平,是吧?   
11.含有否定含义的词在陈述部分作动词的宾语时,其反意疑问句用肯定结构,也可以用否定结构。例如:   
You got nothing from him, did you? 你从他那儿什么也没得到,是吗?   
12. 当陈述部分主语是从句、不定式(短语)、动词-ing形式时,反意疑问句的主语应该用it。  例如:   
What you need is more important, isn't it?你需要的东西更重要,是吧?   
13. 当陈述部分含I think (believe, suppose...)that... 结构时,其反意疑问句须与从句的主、谓语保持一致,注意主句的主语必须是第一人称。例如:   
I don't think he will come, will he? 我认为他不会来,对吗?   
14.have(has)不是表示“有”的意思,并在句中做谓语时,其反意疑问句的助动词要用do, does, did。例如:   
They had a meeting just now,didn't they? 他们刚才开了个会,是吗?   
15. 陈述部分有have to 时,其反意疑问句要用助动词的否定形式。例如:   
You have to water the vegetables every day, don't you?你每天都要浇菜,对吧?   
16. 陈述部分是there be句型时,其反意疑问句中要用there。例如:   
There was a hospital here, wasn't there? 过去这儿有家医院,是吗?   
17. 陈述部分有had better时,反意疑问句中要用hadn't。 例如:   
We had better go to school at once, hadn't we? 我们现在最好马上去上学,好吗?
18. 当陈述部分含有情态动词must时,我们便要分析一下must的含义。如果must 作“一定;要;必须”讲,反意疑问句须用mustn't或needn't;
而当must作推测意义“一定 是;必定”讲时,反意疑问句则需根据must后的动词原形选用相应的形式。例如:    
He must work hard at physics, mustn't he? 他必须努力学物理,是吧?   
Tom must be at home,isn't he? 汤姆一定在家,是吧?
状语从句:
指句子用作状语时,起副词作用的句子。它可以修饰谓语、非谓语动词、定语、状语或整个句子。
根据其作用可分为时间、地点、原因、条件、目的、结果、让步、方式和比较等从句。
状语从句一般由连词(从属连词)引导,也可以由词组引起。
从句位于句首或句中时通常用逗号与主句隔开,位于句尾时可以不用逗号隔开。
状语从句分类:
1、时间状语从句
常用引导词:
when, as, while, as soon as, while, before, after, since , till, until
特殊引导词:
the minute, the moment, the second, every time, the day,the instant, immediately , directly, no sooner … than, hardly …when, scarcely … when
I didn't realize how special my mother was until I became an adult.
While John was watching TV, his wife was cooking.
The children ran away from the orchard(果园) the moment they saw the guard.
No sooner had I arrived home than it began to rain.
Every time I listen to your advice, I get into trouble.

2、地点状语从句
常用引导词:
where
特殊引导词:
wherever, anywhere, everywhere
Generally, air will be heavily polluted where there are factories.
Wherever you go, you should work hard.

3、原因状语从句
常用引导词:
because, since, as, for
特殊引导词:
seeing that, now that, in that, considering that, given that, considering that, as much as, so much as
My friends dislike me because I'm handsome and successful.
Now that everybody has come, let's begin our conference.
The higher income tax is harmful in that it may discourage people from trying to earn more.
Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.

4、目的状语从句
常用引导词:
so that, in order that
特殊引导词:
lest, in case, for fear that,in the hope that, for the purpose that, to the end that
The boss asked the secretary to hurry up with the letters so that he could sign them.
The teacher raised his voice on purpose that the students in the back could hear more clearly.

5、结果状语从句
常用引导词:
so that, so… that, such … that,
特殊引导词:
such that, to the degree that, to the extent that, to such a degree that,
He got up so early that he caught the first bus.
It's such a good chance that we must not miss it.
To such an degree was he excited that he couldn't sleep last night.

6、条件状语从句
常用引导词:
if, unless,
特殊引导词:
as/so long as, only if, providing/provided that, suppose that, in case that, on condition that
We'll start our project if the president agrees.
You will certainly succeed so long as you keep on trying.
Provided that there is no opposition, we shall hold the meeting here.

7、让步状语从句
常用引导词:
though, although, even if, even though
特殊引导词:
as(用在让步状语从句中必须要倒装),while ( 一般用在句首 ),no matter …, in spite of the fact that, while, whatever, whoever, wherever, whenever, however, whichever
Much as I respect him, I can't agree to his proposal.
尽管我很尊敬他, 我却不同意他的建议。
The old man always enjoys swimming even though the weather is rough.
No matter how hard he tried, she could not change her mind.
He won't listen whatever you may say.

8、比较状语从句
常用引导词:
as(同级比较), than(不同程度的比较)
特殊引导词:
the more … the more … ; just as …, so…; A is to B what /as X is to Y; no … more than; not A so much as B
She is as bad-tempered as her mother.
The house is three times as big as ours.
The more you exercise, the healthier you will be.
Food is to men what oil is to machine. 食物之于人,犹如油之于机器。

9、方式状语从句
常用引导词:
as, as if, how
特殊引导词:
the way
When in Rome, do as the Roman do.
She behaved as if she were the boss.
Sometimes we teach our children the way our parents have taught us.

状语从句用法:
时间状语从句
(1) when引导的时间状语从句
①.when引导的时间状语从句,其动词既可以是延续性动作的动词,也可以是瞬间性动作的动词,而且可以表示主句的动作和从句的动作同时发生,或者从句的动作发生在主句的动作之前。如:
when you apply for a job, you must present your credentials.
当你申请工作时,你必须递交你的有关证件。(同时)
when the students heard the teacher’s footsteps, they all atopped talking.
当学生们听到老师的脚步声时,他们都停止了讲话。(从句动作发生在前)
② when还可表示just then(正在那时,突然)的意思,此时其所引导的从句只放在主句之后。如:
we were about to start when it began to rain.
我们正要动身,突然天下起雨来。
The game had hardly/scarcely/barely begun when it started raining.
比赛刚刚开始就下起雨来。
(2) as引导的时间状语从句
as引导的时间状语从句其动词的动作是延续性的,而且侧重表示主句和从句的动作并相发生:
We were having breakfast as she was combing her hair.
她梳头时我们在吃早饭。
It will warm up a little bit on Sunday as the cold front passes.
寒流一过,星期日就会有点暖意了。
(3) while引导的时间状语从句
while表示“在某一段时间里”或“在……期间”,其所引导的从句的动作是延续性的,并侧重表示和主句的动作同时发生。如:
When the teacher paraphrased the text in English, the students listened attentively and took notes.
当老师用英语解释课文时,学生们聚精会神地听并做着笔记。
I can learn while I work.
我可以边工作边学习。
(4) before引导的时间状语从句
① before“在……之前”
I have finished my dissertation before my supervisor went abroad.
在我的导师出国之前,我已完成了我的学位论文。
I’ll be back before you have left.
你离开之前我就会回来。
② before“……之后才”
It may be many years before we meet again.
可能要过许多年我们才能再见了。
It was three days before I came back.
他三天后才回来。
(5) as soon as/once/directly/the instant等引导的时间状语从句
as soon as 是最常见的表示“一……就”的从属连词,其他连词还有once,directly,immediately,instantly,the instant (that),the minute(that) ,the moment(that)等,它们通常都可与as soon as换用。如:
As soon as we got home, the telephone rang.
我们一到家,电话就响了。
I recognized her immediately I saw her.
我一看见她就认出她来了。
Directly the teacher came in everyone was quiet.
老师一进来,大家就静了下来。
(6) hardly...when/no sooner...than引导的时间状语从句
关联从属连词hardly/barely/scarcely...when和no sooner...than的意思是“刚……就”,它们所引导的从句中的谓语动词通常为过去完成时。如:
He had no sooner (no sooner had he)arrived home than he was asked to start on another journey.
他刚一到家,就又要他出另一次差。
No sooner had the words been spoken than he realized that he should have remained silent.
这些话刚一出口,他就意识到自己应该保持沉默。
(7) since引导的时间状语从句
在含有since引导的时间状语从句的复合句中,从句的谓语动词通常为一般过去时,主句的谓语动词通常为现在完成时、过去完成时和一般现在时:
We’ve never met since we graduated from the college.
大学毕业后我们就再没见过面。
Great changes have taken place since you left.
你走了以后,这里发生了巨大变化。
(8) till/until引导的时间状语从句 till和until同义,作“直到……时(为止)”解,till多用于非正式文体,until多用于句首。如:
Donald will remain in college until(till) he finishes his Ph.D course.
唐纳德将留在学校直到完成他的博士学位课程。
I won’t go with you until(till) I finished my homework.
等我做完作业我才和你一起去。
(9) whenever/each time/every time引导的时间状语从句
whenever在引导时间状语从句时作“每当;每次”解,each time和every time与whenever同义,通常可以与它换用。如:
The roof leaks whenever it rains.
每逢下雨屋顶就漏雨。
Whenever certain chemicals are mixed together,heat is produced.
某些化学物质被混到一起时,就会产生热。
Whenever/ Every time/ Each time I met her, she was studying.
我每次看见她时,她总是在学习。

状语从句 - 地点状语从句
(1) when引导的时间状语从句
从属连词where“在(或到)……的地方”
Where there is a will, there is a way.
有志者事竟成。
Put it where you found it.
把它放在原来的地方。
① where 在地点状语从句中,除指地点外,还可指处境等。如:
He said he was happy where he was.
他说他对自己的处境很满意。
It’s your fault that she is where she is.
她今天落到这个地步都怪你。
② 有时地点状语从句中的某些词可以省略。如:
Fill in the blanks with the given phrases. Change the form where necessary.
用所给的短语填空,必要的地方可以改变其形式。
Avoid structure of this kind where possible.
只要可能,就要避免这种结构。
(2) wherever引导的地点状语从句
从属连词wherever“在(或到)……的各个地方”:
You can go wherever(anywhere) you like these days.
这些天你可以去你想去的地方。
Where (Everywhere) they went, the experts were warmly welcomed.
专家每到一处, 都受到热烈的欢迎。
Sit down wherever you like.
你喜欢坐哪儿就坐哪儿。

状语从句 - 原因状语从句
 (1) because引导的原因状语从句
because表示人们不知道的直接的原因或理由,着重点在从句,其所引导的从句,为全句句意的中心所在。
通常用于回答why引出的疑问句,语气最强,除特别强调外,该从句一般位于主句后面。
I didn’t go abrord with her because I couldn’t afford it.
我没有和她一起出国是因为费用太高。
Don’t scamp your work because you are pressed for time.
不要因为时间仓促而马马虎虎。
(2) as引导的原因状语从句
as引导的原因状语从句所传递的通常是已知信息,从句多位于主句之前,通常可以和since换用。如:
As I didn’t know the way,I asked a policeman.
我不认识路,因而问警察。
As it is snowing, we shall not climb the mountain.
由于在下雪,我们不去爬山了。
(3) since引导的原因状语从句
since引导的原因状语从句所传递的通常是已知信息,从句多位于主句之前,通常可以和as换用。如:
Since traveling by air is much faster,they decided to take a plane.
既然乘飞机旅行快得多,他们就决定坐飞机。
Since you won’t help me ,I’ll ask someone else.
你既然不帮我,那我就请别人帮忙。
(4) now(that)引导的原因状语从句
now(that)“因为;既然”,通常可以和since换用。其中that可省去,用来表示一种新的情况,再加以推论。如:
Now(that) you?蒺ve passed your test you can drive on your own.
你既已考试合格,就可以独自开车了。
I do remember,now (that) you mention it.
你这一提,我倒的确想起来了。
(5) seeing (that)引导的原因状语从句
Seeing (that)“鉴于;由于”,通常用于非正式文体。如:
Seeing (that) the weather is bad,we’ll stay at home.
天气不好,我们还是呆在家里吧。
Seeing that he’ s ill,he’s unlikely to come.
(6) in that引导的原因状语从句
in that“因为;基于……的理由”,可以和because换用,多用于正式文体,它所引导的原因状语从句总是位于主句之后。如:
Advertisement is distinguished from other forms of communication in that the advertiser pays for the message to be delivered.
广告不同于其他交际形式,因为登广告的人要为其所提供的信息付费。
I’m in a slightly awkward position, in that he’s not arriving until 10th.
我的处境有点难堪,因为他要十号才来。

状语从句 - 目的状语从句
 (1) in order that引导的目的状语从句
in order that“为了;以便”。多用于正式文体,通常可以与so that换用。如:
You stopped at Hangzhou in order that they could go around West Lake.
他们在杭州停了下来,以便游览西湖。
The expert spoke slowly in order that everyone should understand.
专家讲得很慢,以便人人听得懂。
(2) so (that)引导的目的状语从句
so that“为了;以便”。so that通常可以与in order that换用,它所引导的目的状语从句总是放在主句之后,在非正式文体中,常省略that。如:
Speak clearly so that they may understand you.
你要讲得清楚,他们才听得懂。
She wanted tea ready at seven so she could be out by eight.
她要七点钟备好茶点,这样她八点以前就可以出门了。
(3) in case/for fear (that)/lest等引导的目的状语从句
in case,for fear(that)和lest这三个从属连词都表示否定目的,意思是“以免”,“以防”。
in case多用于英国英语,它所引导的从句中的谓语动词可以是陈述语气形式,也可以是虚拟语气形式;
for fear(that)引导的从句中的谓语带有may,might,should等情态动词;
lest用于正式文体,它所引导的从句中的谓语动词用虚拟语气形式。如:
Take your umbrella with you,lest it should rain.
带上你的伞,以防下雨。
Take your umbrella in case it rains.
带上你的伞,以防下雨。
He took an umbrella with him for fear that it might rain.
他带了一把伞,以防下雨。
状语从句 - 结果状语从句
(1) so that引导的结果状语从句
① so that引导的结果状语从句只能位于主句之后,中间可以有逗号。如:
Suddenly it began to rain heavily,so that it was almost impossible to carry on driving.
突然下起了大雨,几乎无法继续开车。
Linda phoned me in on arrival so that I know she was safe and sound.
琳达到达后给我打了电话,因而我知道她平安无事。
②“so that”既可引导结果状语从句也可引导目的状语从句。
究竟是引导的结果状语从句还是目的状语从句,除了根据句意来判断外,还可根据结构形式来加以判断。
若从句前有逗号,一般为结果状语从句,如果从句中有情态动词,通常则为目的状语从句。如:
They started out early, so that they didn’t miss the train.
他们早早就出发了,所以没误火车。(结果状语从句)
They started out early so that they would not miss the train.
他们早早出发是为了不误火车。(目的状语从句)
(2) so...that引导的结果状语从句
so...that“如此……以致”,that在非正式文体中可以省略,so后面接形容词或副词。如:
She spoke so fast that nobody could catch what she was saying.
她说话如此之快竟没有人听出来她在讲什么。
There is so little time left that I have to tell you about it latter.
现在剩下的时间不多了,我只好以后再给你讲这件事。
(3) such...that引导的结果状语从句
引导结果状语从句的such...that的具体内容是:such+a/an+形容词+名词+that从句。
其中的名词可以是可数名词的单数或复数,也可以是不可数名词。
such+a/an+形容词+单数名词+that从句可换成so+形容词+a/an+单数名词+that从句。如:
The Japanese student made such rapid progress that he soon began to write article in Chinese.
那个日本留学生进步很快,不久就开始用中文写文章了。
The professor told us such a funny story that all the students laughed.
(=The professor told us so funny a story that all the students laughed.)
教授讲了个很有趣的故事,(以致于)所有的学生都笑了起来。
(4) such that引导的结果状语从句
such that引导的结果状语从句多用于正式文体,主句为“主—系—表”句型。如:
The force of the explosion was such that it blew out all the windows.
爆炸的力量很大,所有的窗户都被炸掉了。
His anger was such that he lost control of himself.
他气得不能克制自己的感情。

状语从句 - 条件状语从句 
(1) if引导的条件状语从句
if可引导非真实条件状语从句(见“虚拟语气”)和真实条件状语从句。如:
If he said that,he can’t be telling the truth.
如果他说了那样的话,他不可能是说实话。
(2) unless引导的条件状语从句
unless引导的是否定条件状语从句,在意义上相当于if...not,而且语气较强,一般不用于虚拟语气。如:
You’ll be late unless you hurry.
你会迟到的,如果不赶快的话。
(3) if only引导的条件状语从句
if only在引导条件状语从句时意为“只要;如果”。如:
I’ll let you use the car if only you keep it in good condition.
只要你把车保养好,我就让你用。
(4) as/so long as引导的条件状语从句
as/so long as意为“只要;如果”。如:
As long as it doesn’t rain, we can play.
只要不下雨我们就能玩。
(5) provided (that)/providing (that)引导的条件状语从句
provided (that)/providing (that)意为“如果;只要”。如:
I will agree to go provided’ providing (that my expense are paid.)
假如为我负担费用,我就同意去。
Providing you promise not to tell anyone else I’ll explain the secret.
状语从句 - 让步状语从句
(1) although/though引导的让步状语从句
although和though,都作“虽然;尽管”解,通常可以换用,although的语气较重。
如果要强调“但是”语气,可使用yet,still或nevertheless来表示“但是”、“依然”或“然而”之意。
Although they have been talking for a long time, he cannot make her believe him.
虽然和她谈了半天,他还是不能让她信任自己。
(2) even if引导的让步状语从句
even if “即使,纵然”,从句表示的是尚未发生的动作或存在的情况。如:
Even if it rains tomorrow,we won’t change our plan.
即使明天下雨,我们也决不改变计划。
Even if I failed again, I will not give up the experiment.
即使我再次失败,我也决不会放弃实验。
(3) even though引导的让步状语从句
even though“虽然,尽管”,从句所表示的是已经发生的动作或存在的情况,通常可以和although/though换用。如:
Even though I didn’t understand a word,I kept smiling.
即使我一个字也不懂,我还是保持微笑。
Even though you say so,I do not believe it.
即使你这样说,我也不信。
(4) much as引导的让步状语从句
much as“虽然,尽管”,通常可以和although/though换用:
Much as I’d like to,I can’t come.
我虽然很想来,但是来不了。
Much as I admire his courage,I don’t think he acted wisely.
我虽然佩服他的勇气,但我认为他这样做是不聪明的。
(5) while引导的让步状语从句
while“虽然,尽管”,多用于正式文体,通常可换作although/though。如:
While I understand your point of view,I do not share it.
我虽了解你的观点,但不敢苟同。
While I sympathize,I really can’t do very much to help.
虽然我很同情,但我确实帮不了什么忙。
(6) whatever/No matter what引导的让步状语从句
whatever和no matter what用法相同,都作“无论什么”解,后者多用于非正式文体。如:
Whatever/No matter what he says,don’t go.
不管他说什么,你都不要走。
We are determined to fulfill the task,whatever/no matter what happens.
不管发生什么了,我们决心完成任务。
(7) whichever/no matter which引导的让步状语从句
whichever和no matter which用法相同,都作“无论哪个”解,后者多用于非正式文体。如:
Whichever/No matter which you buy, there is a six-month guarantee.
不论你买哪个,都有六个月的保修期。
Whichever/No matter which of the two men had stolen her purseBarbara was determined to find them.
不管这两个人是谁偷了她的钱包,芭芭拉决心找到他们。
(8) whoever/no matter who引导的让步状语从句
whoever和no matter who用法相同,都作“无论谁”解,后者多用于非正式文体。如:
You can’t come in, whoever you are.
不管你是谁,都不能进来。
Whoever/No matter who wants to speak to me on the phone, tell him I’m busy.
不管谁要我接电话, 就说我现在正忙着呢。
(9) whereverno matter where引导的让步状语从句
wherever和no matter where用法相同,都作“无论在(或到)哪里”解,后者多用于非正式文体。如:
Wherever/No matter where you go, I’m Right Here Waiting fo ryou.
无论你到哪里,我都依然在这里等着你。
(10) however/no matter how引导的让步状语从句
however和no matter how用法相同,都作“无论如何……”解,后者多用于非正式文体。
However much you regret doing that, there is nothing you can do about it now.
无论你可能多么懊悔你曾经做过的事,现在也无济于事了。
However high it may be,it can’t reach the sky.
它不论有多高,也高不到天上去。
(11) whenever/no matter when引导的让步状语从句
whenever和no matter when用法相同,都作“无论何时”解,后者多用于非正式文体。如:
Whenever I’m unhappy,he cheers me up.
每当我不高兴时,他就给我鼓劲儿。
(12)(no matter) whether...or引导的让步状语从句
whether...or和no matter whether...or用法相同,都作“不论……还是”解,后者的语气强一些。如:
When It Rains or not, we’re playing football on Sunday.
无论下不下雨,我们星期天一定踢足球。
(13) as引导的让步状语从句
as在引导让步状语从句时作“虽然;尽管”和“即使”解,但是它不位于句首,在它前面的可以是形容词、名词、副词等。如:
Strong as you maybe, you cannot lift it.
虽然你可能很有力气,你却无法把它提起来。
Late as it was, they continued to study.
时间尽管不早了,他们仍继续学习。

状语从句 - 方式状语从句
(1) as引导的方式状语从句
as在引导方式状语从句时意为“以……方式;如同……那样”,从句有时是省略句。如:
Do as I say. 要照我说的做。
I did just as you told me. 我正是照你说的办的。
Air is to man as water is to fish. 空气之于人犹如水之于鱼。
(2) as if/as though引导的方式状语从句
as if和as though的用法相同,都作“好像,仿佛”解。如:
二者引导的状语从句往往用虚拟语气,表示与事实相反。as if比as though更为常用。
但也可用陈述语气,表示所说的情况是事实或实现的可能性较大。如:
They looked at me as if ‘as though I were mad.
他们瞧着我好像我发疯了似的。
They look as if/as though they know each other.
他们看来好像互相认识。

状语从句 - 比较状语从句
(1) as...as 引导的比较状语从句
as...as表示同级比较,主句中用形容词或副词的原级形式,从句常常为省略句。如:
We were as fortunate as them (they were)
我们和他们一样幸运。
I hope she will make as much progress as you (have done).
我希望她将取得和你同样的进步。
(2) not so/as...as 引导的比较状语从句
not so/as...as表示同级比较,主句中用形容词或副词的原级形式,从句常常为省略句。如:
That’s not so/as simple as it sounds.
那件事情不像听起来那么简单。
(3) than引导的比较状语从句
than引导的比较状语从句表示同等比较,主句中用形容词或副词的比较级形式,从句常常为省略句。如:
He has lived here longer than I(has lived).
他在这儿住的时间比我长。
They love the girl than(they love) him.
他们爱这个女孩而不爱他。
(4) the..., the...引导的比较状语从句
The more you listen to English, the easier it becomes.
英语听得越多就越容易。