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初中三年级英语

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  • 填空题
    用所给词的适当形式填空。
    1. His mother _____(kill) in an accident last month.
    2. Do you need _____ (travel) and make new friends?
    3. Her mother asked her _____ (help) do the cleaning.
    4. The scientist goes to the fields _____ (two) a day.
    5. China now produces enough rice _____ (feed) her people every year.
    本题信息:2012年同步题英语填空题难度一般 来源:张琳贺
  • 本题答案
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本试题 “用所给词的适当形式填空。1. His mother _____(kill) in an accident last month.2. Do you need _____ (travel) and make new friends?3. Her mother asked ...” 主要考查您对

频度副词

被动语态

不定式

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。
  • 频度副词
  • 被动语态
  • 不定式

频度副词:
是表示动作发生频率的词。
常见的有:
ever, never, rarely, seldom, once, often, occasionally, constantly, frequently, usually,continually, always 等。
例如:He often came to see us.
            She always was late.
常见频度副词在表示程度上有别,按频率大小排列如下:
always(100%)>usually(80%)>often(60%)>sometimes(40%)>seldom(20%)>hardly (10%)>never(0%)


常见程度副词用法列举:
◆always 频率最高,表示动作重复、状态继续,表示“一直、总是”,其反义词为never。always等与not连用时,表示部分否定。如:
The rich are not always happy. 有钱的人并不总是快乐的。
如果要变为否定句,应将always改为never才能全部否定。如:
Li Ping is always late for school. 李平上学总是迟到。
Li Ping is never late for school. 李平上学从不迟到。(全部否定)
Li Ping is not always late for school. 李平上学不总是迟到。(部分否定)
频度副词通常和一般现在时连用,表示动作发生的频率。但always与进行时连用时,并不强调动作正在进行,而是表示赞叹、厌烦等情绪。如:
He is always thinking of others. 他总是想着别人。(赞叹)
She is always asking silly questions. 她总是问些愚蠢的问题。(厌烦)
The boy is always asking for money. 这个小男孩总是要钱。(厌烦)

◆usually意为“通常”,表示习惯性动作或状态,很少有例外。如:
We usually go to school at seven in the morning. 我们通常在早上七点上学。
My mother and I usually go shopping on Sundays. 我和妈妈通常在星期天去买东西。

◆Often意为“经常,时常”,表示反复性的动作或状态,中间有间断,不如usually那么频繁。其反义词是seldom。often在句尾时常被very或quite修饰。如:
It often rains here in April. 这儿四月份常下雨。
he boys often eat noodles and the girls sometimes eat them. 男生经常吃面条,女生有时吃。
I often chat with my friends under the big tree. 我经常在这棵大树下和朋友聊天。
He writes to his friends quite often. 他常给他的朋友写信。

◆sometimes意为“有时”,频率不及often,表示动作偶尔发生,间断时间较长。其位置比较灵活,放在句首、句中、句末都可。如:
Sometimes we go to the cinema and at other times we go for a walk.
有时我们去看电影,有时我们去散步。
I sometimes watch TV in the evening. 我有时晚上看电视。
My father has lunch in the factory sometimes. 我父亲有时在工厂吃午饭。

◆seldom意为“很少”;never意为“从不”。这两个副词表示否定意义,动作几乎不会发生。如:
He seldom eats breakfast. 他很少吃早餐。
The little girl seldom goes out. 这个小女孩很少外出。
I will never forget your kindness. 我永远忘不了你的好意。
The boys never eat chocolate and the girls seldom eat it. 男生从不吃巧克力,女生很少吃。
Btter late than never. [谚语] 迟到(迟做)总比不来(不做)好。

◆hardly具有否定意义,表示“几乎不、简直不”,除非特殊情况,否则不会发生。如:
The boy is so young that he could hardly understand it. 这个孩子太小了,不可能懂得这件事。

◆对上述频度副词提问时,用how often。如:
I write to my brother sometimes.
→How often do you write to your brother?

频度副词在句中不同位置的用法比较:
一、频度副词在否定句中的用法
在否定句中,有的频度副词位于否定词之前或之后均可,而有的频度副词则必须位于否定词之后,而还有的频度副词却必须要位于否定词。
大致情况如下:
1. 频度副词usually和often可位于否定词not之前或之后。
他们不常开这样的晚会。
正:They don’t often hold such parties.
正:They often don’t hold such parties.
星期日我们一般不在9点以前起床。
正:We don’t usually get up before nine on Sundays.
正:We usually don’t get up before nine on Sundays.
在否定句中,频度副词用于句中或句首,有时但会导致意思不同。
He doesn’t usually sleep for two days at a time. 他很少一连睡两天。
Usually he doesn’t sleep for two days at a time. 他连续两天不睡觉是常事。
2. 频度副词always总是位于否定词之后,不可位于否定句之前。
Things are not always what they seem to be. 外表往往是靠不住的。
Silence must not always be read as consent. 沉默并不见得一定意味着同意。
3. 频度副词sometimes总是位于否定词之前,不可位于否定词之后。
Jim is sometimes not very punctual. 吉姆有时不太准时。
Debbie is sometimes not responsible for what she does. 黛比有时对她所做的事不负责任。

二、频度副词位于句末的用法
1.sometimes常可用于句末。 如:
We all get into trouble sometimes. 我们有时都会遇到麻烦。
You can’t work all the time,it does you good to go out and enjoy yourself sometimes.
你不能总是工作,有时出去放松一下会对你有好处。
2. often有时可置于句末,但通常会带有very, quite, fairly, more, so等修饰语。如:
We’ve been there quite often. 经常去那里。
When I was young, I used to play tennis very often. 我年轻时经常打网球。
Diana used to travel a lot. These days she doesn’t go away so often.
娜过去经常旅游。最近她不常出门了。
We're not exactly on intimate terms, but we see each other fairly often.
虽算不上关系密切,但还常见面。
注:有时也可不带修饰语,但主要见于否定句或疑问句。 如:
He writes to me often. 他经常给我写信。
Do you come here often? 你常来这儿吗?
I don’t come here often. 我不常来这儿。
3. usually有时也用于句末,其前不用修饰语。
I’m not late, usually. 我通常不迟到。
I get paid on Fridays usually. 我通常在星期五领工资。
4.seldom 一般不用于句末,除非其前带有only,very等修饰。
We go out very seldom. 我们绝少外出。
I play basketball very seldom indeed. 我很少打篮球。
5. always一般不用于句末,偶尔用于句末,此时它不表法“总是”,而表示“永远”。
I’ll love you always. 我将永远爱你。
另外,有时用于句末是因为句子有所省略的缘故。
Generally they walked together on Sunday, but not always.
他们一般在星期日一起散步,但并不总是如此。
句中的but not always=but they didn’t always walk together on Sunday。

三、频度副词位于句首的用法
1. sometimes常可用于句首。
Sometimes she comes late. 有时她来得晚。
Sometimes she didn’t agree with me. 有时她和我意见不一致。
Sometimes we get a lot of rain in August. 有时在8月份雨水很大。
2. often用于句首时,通常表示强调,且其前一般有quite, very修饰。
Very often he comes in late. 他常常迟到。
Quite often the phone rings when I’m in the bath. 电话经常在我洗澡时响。
3.usually有时也用于句首,其前不用修饰语。
Usually I get up early. 我平时起得早。
Sometimes he comes by bus, but usually he comes by taxi.
有时他坐公共汽车来,不过他通常还是打的来。
Usually cooking pots have two small handles but pans have one long handle.
通常地深底煮锅有两只把手而平底锅只有一个长长的把手。
4.always一般不用于句首,除非是用在祈使句中。
Always remember this. 请时刻记住这一点。
Always look in the mirror before starting to drive. 一定要先看看反光镜再开车。
另外,never也可用于祈使句的句首。
Never tell him the news. 千万不要告诉他这消息。
Never ask her about her marriage. 决不要问她结婚的事。
5.在正式文体中,表示否定意义的副词seldom, never可位于句首,但此时其后要用倒装语序。
Seldom has there been such a happy meeting. 过去很少有过这样愉快的会议。
Never did he think the book would be finished so soon. 他可没想到这本书会这么快看完
另外,once a year (每年一次), twice a week (每周两次), three times a day (一天三次), every Saturday afternoon(每星期六下午)等,
这些时间状语也表示频率,它们可以和频度副词用在同一个句子中,表达上没有重复。如:
We usually go to the cinema four times a month. 我们通常一个月看四次电影。


频度副词的用法:
 频度副词是副词的一种,在初中阶段常用的有四个,即always, usually,often,sometimes。它们的用法如下:
一、频度副词在句中的位置。
1.频度副词在句中习惯上位于be动词、助动词之后,行为动词之前。如: 
She is often late for school.她上学经常迟到。
He usually goes to bed at about 12.他通常(午夜)十二点钟睡觉。
When do you usually get up in the morning?早上你通常什么时候起床?
2.sometimes是个特殊的频度副词,既可以放在be动词、助动词之后,行为动词之前,也可以放在句首,还可以放在句尾。如:
I sometimes think that it is a great mistake.我有时想这是一个大错。
Sometimes I help my mother in the house.有时候我帮助妈妈做家务。
3.often可以放在句中,也可放在句尾,习惯上不放在句首。如: 
We have been there quite often.我们经常到那儿去。
She writes to me often. 她经常给我写信。
4.如果有两个助动词,频度副词通常放在第一个助动词后面。如:

We have never been invited to one of their parties. 他们聚会,一次也没邀请过我们。

She must sometimes have wanted to run away. 她有时候一定想到过要逃走。
5.这些频度副词的位置与句中谓语动词有无助动词有关。句中没有助动词时,副词置于动词be之后,其它动词之前。
频度副词位于助动词之前两种情况:
①为了表示强调,频度副词有时也可位于动词be、助动词、情态动词之前,此时助动词等应重读。如:
She always was late. 她老是迟到。
I never can remember. 我永远也记不住。
②在简略答语中,当频度副词与动词be、助动词或情态动词位于句末时,频度副词必须前置。
—“Philip is late again.”
—“Yes, he always is.”
—“菲利普又迟到了。”
—“是的,他总是迟到。”
— “Can you park your car near the shops?”
—“Yes. I usually can.”
— “你可以在商店附近停车吗?”
—“是的,通常可以。”
6.频度副词后的动词可以是动词的任何形式,具体什么形式和频度副词本身没有关系。
如:
I have never been to the moon.
 He sometimes goes to school by bike.
   
二、表示频度方面的区别:
1.always是频度最大的词,意为"总是;永远"。如:
  I shall always remember my first day at school.我将永远记住我上学的第一天。
2.usually意为"通常",即很少例外,频度仅次于always。如:
  What do you usually have for breakfast?你通常早餐吃什么?
3.often意为"经常",在频度上不如usually那么频繁。如:
  Li Ping often does his homework in the afternoon.李平经常在下午做作业。
4.sometimes意为"有时候",频度比often小,表示动作偶尔发生,间断较大。如:
  1.I sometimes go to the library.我有时去图书馆。
  2.Sometimes I read a book in the evening.我有时在晚上看书。

三、频度副词与not连用时,表示部分否定;对频度副词进行提问时,要用how often。如:
1.A great scholar is not always a very wise man.大学者未必一定是极聪明的人。
2.We go to the cinema sometimes.(对划线部分提问)
    How often do you go to the cinema?


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.