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初中三年级英语

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  • 句型转换
    按要求改写句子。
    1. Peter often helps in the house at the weekend. (改为一般疑问句)
    _________ Peter often _________ in the house at the weekend?
    2. We used to stayin a hotel by the seaon family holidays. (对划线部分提问)
    _________ _________ you use to stay on family holidays?
    3. Your mother has never tried shopping on the Internet. (改为反意疑问句)
    Your mother has never tried shopping on the Internet, __________ __________?
    4. James spent ten years making this amazing film. (同义句转换)
    __________ __________ James ten years to make this amazing film.
    5. Chris has gone to South Africa to enjoy the 2010 World Cup.
    Karen has gone to South Africa to enjoy the 2010 World Cup, too. (合并为一句)
    _________ Chris _________ Karen have gone to South Africa to enjoy the 2010 World Cup.
    6. Visitors love this city because it has historical sights and delicious food. (改为简单句)
    Visitors love this city __________ _________ its historical sights and delicious food.
    本题信息:2010年专项题英语句型转换难度较难 来源:冯丽娟
  • 本题答案
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本试题 “按要求改写句子。1. Peter often helps in the house at the weekend. (改为一般疑问句)_________ Peter often _________ in the house at the weekend?2. We...” 主要考查您对

不定代词

疑问副词

实义动词的过去式

实义动词

助动词的单数第三人称形式

助动词的过去式

介词短语

并列连词

反意疑问句

it 的用法

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。
  • 不定代词
  • 疑问副词
  • 实义动词的过去式
  • 实义动词
  • 助动词的单数第三人称形式
  • 助动词的过去式
  • 介词短语
  • 并列连词
  • 反意疑问句
  • it 的用法
不定代词
即不指明代替任何特定名词或形容词的代词。
初中常用不定代词有:
some(something,somebody,someone),any(anything,anybody,anyone), no(nothing,nobody,no one),
every(everything,everybody,everyone,),all,each,both,much,many,(a)little,(a)few,other(s),
another,none,one,either, neither等。一般来讲,修饰不定代词的词要置于其后。

不定代词用法例举:
①一般用于肯定句中的不定代词:some, someone, somebody, something
例如:They can speak some Japanese.
②一般用于否定句、疑问句和条件句中的不定代词:any, anyone, anybody, anything
例如:Is there anyone at home?
③一般用于句中表示否定意义的不定代词:no, no one, nobody, nothing
例如:I have no watch.
There is nothing wrong with the machine.
④不定代词one指代可数名词,既可指人,亦可指物,它可以代替上文中出现的单数可数
名词,指代复数名词时可以用ones。
例如:I do not have a pen, can you lend me one?
I like small cars better than large ones.
⑤none通常只用作名词,在句中作主语、宾语等。意为“没有任何(人或物)”,既可指人,亦可指物。
none后常跟of短语,其后用复数可数名词或不可数名词。
例如:None of them knows the answer to the question.
⑥both, all
both指两个人、物或群体;
all指三个以上的人、物或群体或泛指一切事物。
例如:My parents are both teachers.
           All of my friends are football fans.
⑦every, each
each一般用于指两个或两个以上的人或物,侧重个别;
every用于指三个或三个以上的人或物,侧重全体。而且each所指对象在上下文中已十分明确。
例如:Each student went to see that films. (学生至少二人)
            Every student went to the park.(学生至少三人)        
⑧other, the other, others, the others, another
other具有名词和形容词性质,既可指人,亦可指物。other常与定冠词the连用。
不定冠词an与other连用则组成another。other只作形容词或代词,表示“其他的,别的”,不可单独使用。
例如:Do you have any other questions?
the other作形容词或代词,特指两者中或两部分的另一个或另一部分。
例如:The bookshop is on the other side of the street.
 others相当于“other+名词”,泛指“别的人或物”,只有名词性用法。
例如:Some are planting trees, others are watering them.
the others相当于“the other+名词”,表示“剩下的,其余的”,特指除此之外的全部 人或物。
例如:There are forty-six students in our class. Two of them are foreign, the others are all Chinese.
another作形容词或代词,泛指三个或三个以上不定数目中的“另一个”。
例如:This pen is too expensive, please show me another.
⑨either, neither
either指“两者中的任何一个”;neither指“两者中无一”,具有否定意义。
例如:You can take either half.
Neither of the books is good.
⑩many, much, most
many和much具有名词和形容词的性质,都表示“许多、大量”。
Much一般只能指代或修饰不可数名词,many只能指代或修饰复数可数名词。Most指“大部分、大多数”。
例如:Many boys like playing soccer.
We have much homework to do every day.
Most students think so.
(11)few, a few, little, a little
a few 和a little 意为“少数、少量”,其意义是肯定的。
A few指代或修饰复数形式的可数名词,a little指代或修饰不可数名词。
Few 和little意为“几乎一点没有”,具有否定意义。
例如:He has a few friends here.
Hurry up! There is little time left.


不定代词的用法:
不定代词大都可以代替名词和形容词,在句中作主语、宾语、表语、定语和状语。
位置
不定代词+形容词
不定代词+to do
作主语
Both of them are teachers.他们两人都是教师。
作宾语
I know nothing about this person.我对这个人一无所知。
作表语
This book is too much for a child.这本书对一个小孩来说太难了。
作定语
There is a little water in the glass.玻璃杯里有一些水。
作状语
I can't find my book anywhere.我在任何地方都不能找到我的书。
修饰不定代词的词,一般情况下要后置。
疑问副词:
用来引导特殊疑问句,表示时间,地点,方式,原因等。
常见的有:when,where,how,why等。

疑问副词的用法:
1.疑问副词是问何时、何地、如何、因何的副词,主要有when, where, how, why。

2.疑问副词用在句首。
How long have you been staying in America?
你在美国待多久了?

3.疑问副词在句中引导名词子句。
I want to know where she has gone.
我想知道她去哪里了。

4.疑问副词后接不定词构成的名词片语,在句中可以作主词、受词或主词补语。
How to solve the problem gives him a bad headache.
如何解决这个问题使他伤透脑筋。
(How to solve the problem作主词。)
I don't know how to answer the question.
我不知道如何回答这个问题。
(how to answer the question作受词。)
The patient is in urgent need the medicine, but the problem is where to get it.
这个病人急需这种药,但问题是哪里能找到。
(where to get it作主词补语。)

5.疑问副词引导的名词子句可作主词、受词或主词补语。
When we are to start the competition hasn't fixed yet.
我们什么时候开始比赛还没有定下来。
(When we are to start the competition作主词。)
She asked her husband where he had been.
她问她丈夫去哪里了。
(where he had been 作受词。)
The question is when we can finish our work.
问题是我们何时能完成我们的工作。
(when we can finish our work作主词补语。)


疑问代词与疑问副词的区别:
1. 疑问代词做对陈述句的主语,宾语或定语提问,即做句子的主语,宾语或定语,如what, who/ whom, whose.
eg. Who is talking ? What can you see?
Whose shirt is this?
2.疑问副词对时间,地点,方式等状语提问,如when, where, how 等.
eg. When is your birthday? Where are you going?
How do you know?
常见的疑问代词:what  who  which  whom(只做宾语)
疑问副词:how  where  when
还有whether是疑问连接词。
表示一般过去式的动词通常用动词的过去式形式来表示,而动词的过去式是在动词原形的基础上变化的。
动词的过去式可分为规则动词和不规则动词。

实意动词过去式变化规则:

分类 构成 例句
一般情况下 在词尾直接加ed ask—asked
work—worked
以不发音的e结尾 只加d

love—loved

dance—danced

以辅音字母加y结尾 变y为i,再加-ed try—tried
study—studied
以一个元音字母和一个辅音结尾的
重读音节结尾的动词
先双写末尾一个字母,再加ed stop—stopped
permit—permitted
“-ed”的读音规则 1.在清辅音后面读[t],如:help—helped[helpt]
2.在浊辅音或元音后读[d],如:learn—learned
3.在[t]和[d]后读[id],如:want—wantedneed—needed
注:以l结尾的动词,尾音节重读时,双写l,如control—controlled;
尾音节不重读时,双不双写都可以,如travel—traveled/traveled。
特例:picnic—picnicked,另外还有很多动词的过去式是不合乎上述规则的,常见的有:
常用的有:
begin—began,         bring—brought,        come—came,        draw—drew,
drink—drank,          drive—drove,          eat—ate,                feel—felt,
get—got,                  give—gave,              go—went,             grow—grew,
have (has)—had,      keep—kept,            know—knew,       leave—left,  
make—made,           read—read,            run—ran,               say—said,
see—saw,                sit—sat


几个特殊实意动词过去式用法:
a.beat的过去式与原形同形:   
beat(打击) 
beat(过去式) 
beaten(过去分词)   
b.lie有规则变化和不规则变化两种,含义不同   
lie,lied, lied(说谎)   
lay, lain(躺,位于)   

c.hang有规则变化和不规则变化两种,含义不同   
hang,hanged, hanged(处绞刑)   
hung, hung(挂,吊)   

d. welcome(欢迎)一词是规则动词,不可误用为不规则动词   
welcome welcomed, welcomed(正)   
welcome, welcome(误)   

e.不要将不规则动词误用为规则动词   
hit(打) 
hit, hit(正)   
hitted, hitted(误) 


实意动词过去式用法基本句式:
1.主+V-ed+宾+其它。。。(肯定句)
2.主+didn't+V原+宾+其它。。。
3.Did+主+V原+宾+其它。。。+?
4.回答:Yes,主语代词+didNo,主语代词+didin't.
5.特殊疑问句:特殊疑问词+一般疑问句。
实义动词的一般过去时态:
肯定句要使用动词的过去式,否定句和疑问句要使用助动词do和 does 的过去式 did.

肯定句为:
主语+动词过去式+宾语    如:
I went home at nine o'clock yesterday.

否定句:
主语+didn't +动词原形+宾语  如:
I didn't go home yesterday.  He didn't tell me about you.

疑问句:
一般疑问句:
Did +主语+动词原形+宾语
如:Did you go home yesterday?  
Did you study in the school?
肯定回答: Yes, I did.    
否定回答:No, I didn't.

特殊疑问句:特殊疑问词+did +主语+动词原型+宾语
When did you finish your homework last night?      
What did you do the day before yesterday?
实意动词:
即行为动词,表示动作的动词。实义动词与系动词是相对的,能独立用作谓语。
它分为及物动词和不及物动词两种:
及物动词是指后面要求有直接宾语的动词;
不及物动词指后面不需要跟宾语的动词。

实意动词使用方法:
及物动词
后面必须跟宾语意义才完整的实义动词,叫做及物动词(transitive verb)。如:
I believe that the committee will consider our suggestion.我相信委员会将会考虑我们的建议。
“How long can I keep the book ?”Harry asked.哈里问:“这本书我可以借多久?”
Dr. Bethune set us a good example. 白求恩大夫给我们树立了好榜样。
Crude oil contains many useful substances.原油含有许多有用的物质。

不及物动词
本身意义完整后面不须跟宾语的实义动词,叫做不及物动词(intransitive verb)。如:
Birds fly.鸟会飞。
It happened in June 1932.这件事发生于一九三二年六月。
My watch stopped.我的表停了。
She spoke at the meeting yesterday evening. 她在昨天晚上的会上发了言。

兼作及物动词和不及物动词
英语里有不少实义动词可以兼作及物动词和不及物动词。这样的动词又有两种不同的情况
a)兼作及物动词和不及物动词时,意义不变。试比较:
Shall I begin at once?我可以立刻开始吗?(begin作不及物动词)
She began working as a librarian after she left school.她毕业后当图书馆管理员。(began作及物动词)
When did they leave Chicago?他们是什么时候离开芝加哥的?(leave 作及物动词)
They left last week. 他们是上周离开的。(left 作不及物动词)
b)兼作及物动词和不及物动词时,有时意义不尽相同。如:
Wash your hands before meals.饭前要洗手。
Does this cloth wash well? 这布经得起洗吗?


英汉实意动词用法比较:
与汉语的比较,有时英语动词的及物和不及物的用法,与汉语的用法不一样,请注意下列两种情况:
a)有的动词在英语里只能用作不及物动词,而汉语则可用作及物动词,如arrive到达,agree同意,listen听。英语里这些动词后面常接介词。如:
We arrived at the railway station at noon.
我们于中午到达火车站。(at不能省去)
(比较:We reached the railway station at noon.)
Everybody listened to the lecture with great interest.
每个人都很有兴趣地听讲课。(to不可省去)
(比较:We all heard the lecture.)
Do they agree to the plan?他们同意这个计划吗?(to不可省去)

b)有的动词在英语里能用作及物动词,而在汉语里则不能用作及物动词,如serve为…服务。
Our children are taught to serve the people wholeheartedly.
我们的儿童被教以全心全意为人民服务
用于be动词之后,实义动词之前。

 实意动词的用法:
肯定句:
主语+动词过去式+其它
否定句:
主语+助动词didn‘t+动词原型+其他
一般过去式:
Did+主语+动词原型+其他


助动词的单三形式

助动词

be 

do 

have 

shall 

will 

单三形式

is

does

has

shall

will


助动词的过去式:

助动词

be

do

have

shall

will

过去式

was/were

did

had

should

would


介词短语:
介词是一种用来表示词与词, 词与句之间的关系的词。在句中不能单独作句子成分。
介词后面一般有名词代词或相当于名词的其他词类,短语或从句作它的宾语。介词与它的宾语构成介词词组,在句中作状语,表语,补语,定语或介词宾语。例如:at ,in, on, to
介词短语在句中可以作状语,定语,表语,补足语等。
1. 作表语
   例如:It was in 2005 in Beijing.
2. 作宾语补足语
   例如:He found his dog outside the station.
3. 作后置定语
   例如:I even store them in boxes under my bed.
4. 作状语
   例如:You are supposed to put your bread on your plate.
常见介词用法:
1)at,in,on在……范围
at (1)表示在小地方; (2)表示“在……附近,旁边”
in (1)表示 在大地方; (2)表示“在…范围之内”。
on 表示毗邻,接壤
to 表示在……范围外,不强调是否接壤
He arrived at the station at ten.
He is sitting at the desk.
He arrived in Shanghai yesterday.
Jiangsu lies in the east of China.
Russia live on the north of China.
Fujian is to the south of Jiangsu Province.

2)above, over, on 在……上
above 指在……上方,不强调是否垂直,与 below相对;
over指垂直的上方,与under相对,但over与物体有一定的空间,不直接接触。
on表示某物体上面并与之接触。
The bird is flying above my head.
There is a bridge over the river.
He put his watch on the desk.

3)below, under 在……下面
under表示在…正下方
below表示在……下,不一定在正下方
There is a cat under the table.
Please write your name below the line.

介词短语组织形式及实例:
一、介词+名词形式
第一组
by accident 偶然
on account of 因为,由于
in addition 另外
in addition to 除 …… 之外
in the air 在流行中,在传播中
on (the/an) average 平均,一般来说
on the basis of 根据,在 …… 的基础上
at (the) best 充其量,至多
for the better 好转,改善
on board 在船 ( 车、飞机 ) 上
out of breath 喘不过气来
on business 因公,因事
in any case 无论如何,总之
in case of 假使,万一
in case 假如,以防 ( 万一 ) 免得
in no case 决不
第二组
by chance 偶然,碰巧
in charge (of) 负责,主管
(a) round the clock 昼夜不停地
in common 共用,共有,共同
in conclusion 最后,总之
on condition that 在 …… 条件下
in confidence 信任
in connection with/to 关于
in consequence 因此,结果
in consequence of 由于 …… 的缘故
on the contrary 反之,正相反
in contrast with/to 与 …… 成对照
out of control 失去控制
under control 被控制住
at all costs 不惜任何代价
at the cost of 以 …… 为代价
第三组
in the course of 在 …… 过程中,在 …… 期间
of course 当然,自然,无疑
in danger 在危险中,垂危
out of danger 脱离危险
out of date 过期 ( 时 ) 的
up to date 时新的
in debt 欠债
in detail 详细地
in difficulties 处境困难
in the distance 在远处
off duty 下班
on duty 值班,上班
on earth 究竟,到底
at all events 无论如何
in any event 无论如何
in effect 有效;实际上
第四组
in the event of 万一,如果发生
for example 例如
with the exception of 除 …… 之外
in the face of 面对,不顾,即使
in fact 其实,实际上
on fire 烧着
on foot 步行
in force 有效;实施中
in favo(u)r of 有利于,赞成,支持 in front of 在 …… 面前
in (the) future 今后,将来
on guard 警惕,防范
in general 通常,大体上
in half 成两半
at hand 在手边,在附近
from tip to toe 彻头彻尾,完全
by hand 用手 hand down to 往下传,传给 ( 后代 )
第五组
hand in hand 手拉手,携手
in hand 在掌握中,在控制中
on hand 在手边,临近
on (the) one hand... 一方面 …… ,
on the other hand... 另一方面 ……
at heart 在内心;实质上
by heart 牢记,凭记忆
at home 在家,在国内;自在,自如
in honor of 以纪念,向 …… 表示敬意
on one's honor 以名誉担保
in a hurry 匆忙地,立即
for instance 例如,举例说
at intervals 不时,时时
at last 最终,终于
at least 至少,最低限度
in the least 一点,丝毫
第六组
at length 终于,最后;详细地
in the light of 按照,根据
in line 成一直线,排成一行
in line with 与 …… 一致,按照
at a loss 困惑,不知所措
as a matter of fact 其实,事实上
by all means 无论如何,必定 by means of 借助于,用
by no means 决不
in memory of 纪念
at the mercy of 在 …… 支配下
by mistake 错误地
for a moment 片刻,一会儿
in a moment 立刻,马上
第七组
in nature 本质上 on occasion 有时,不时
in order 秩序井然,整齐
in group to 以便,为了
in group that 以便
out of order 发生故障,失调
on one's own 独自地,独立地
in particular 特别地,尤其,详细地
in the past 在过去,以往
in person 亲自
in place 在适当的位置
in place of 代替
in the first place 起初,首先
in the last place 最后
out of place 不得其所的,不适当的
on the point 即将 …… 的时候
第八组 to the point 切中要害,切题
in practice 在实际中,实际上
out of practice 久不练习
in proportion to( 与 ……) 成比例的
in public 公开地,当众
for (the) purpose of 为了
on purpose 故意,有意
with the purpose of 为了
in question 正在考虑
at random 随意地,任意地
at any rate 无论如何,至少
by reason of 由于
as regards 关于,至于
with/in regard to 对于,就 …… 而论
第九组
in/with relation to 关系到
with respect to 关于
as a result 结果,因此
as a result of 由于 …… 的结果
in return 作为报答,作为回报
on the road 在旅途中
as a rule 规章,规则;通常,照例
in the long run 最终,从长远观点看
for the sake of 为了 …… 起见
on sale 出售;贱卖
on a large scale 大规模地
on a small scale 小规模地
in secret 秘密地,私下地
in a sense 从某种意义上说
in shape 处于良好状态
on the side 作为兼职,额外
第十组
at first sight 乍一看,初看起来
in sight 被看到,在望
out of sight 看不见,在视野之外
in spite of 不管,不顾;尽管,虽然
on the spot 当场,在现场
in step 同步,合拍
out of step 步调不一致,不协调
in stock 现有,备有
in sum 总而言之
in tears 流着泪,含泪,哭
in terms of 依据,按照;用 …… 措词
for one thing 首先,一则
on the second thoughts 经重新考虑,一转念
at a time 每次,一次
at no time 从不,决不
at one time 同时,曾经,从前曾

二、动词+名词形式
第一组
have/gain access to 可以获得
take...into account 考虑
gain/have an advantage over 胜过,优于
pay the way for 为 …… 铺平道路
take advantage of 利用,趁 …… 之机
pay attention to 注意
do/try one's best 尽力,努力
get the best of 胜过
make the best of 充分利用,妥善处理
get the better of 打败,致胜
catch one's breath 屏息,歇口气
take care 小心,当心
take care of 照顾,照料
take a chance 冒险一试
take charge of 担任,负责
keep company with 与 …… 交往,与 ……
take delight in 以 …… 为乐
with delight 欣然,乐意地
第二组
make a/the difference 有影响,很重要
carry/bring into effect 使生效,使起作用
put into effect 实行,生效
come/go into effect 生效,实施
take effect 生效,起作用
catch one's eye 引人注目
keep an eye on 留意,照看
make a face 做鬼脸
find fault 埋怨,挑剔
catch fire 着火
come/go into force 生效,实施
make friends 交朋友,友好相处
be friends with 对 …… 友好,与 …… 交上朋友
make fun of 取笑,嘲弄
keep one's head 保持镇静
lost one's head 不知所措
第三组
lose heart 丧失勇气,失去信心
get/learn by heart 记住,背诵
get hold of 抓住,掌握
keep house 管理家务,做家务
throw/cast light on 使明白,阐明
bear/keep in mind 记住
have in mind 记住,考虑到,想到
make up one's mind 下决心
come/go into operation 使投入生产,使运转
put in order 整理,检修
keep/hold pace with 跟上,与 …… 同步
play a part 起作用
take place 发生,进行
take the place of 代替
come to the point 说到要点,扼要地说
bring/carry into practice 实施,实行
第四组
make progress 进步,进展
give rise to 引起,使发生
make sense 讲得通,有意义
catch the sight of 发现,突然看见
(go) on the stage 当演员
take one's time 不急不忙,从容进行
keep in touch 保持联系
keep track 通晓事态,注意动向
lose track 失去联系
make use of 利用
put to use 使用,利用
give way 让路,让步
lead the way 带路,引路
make one's way 前进,进行
make way 让路,开路
keep one's word 遵守诺言
第五组
act on 作用
appeal to 呼吁,要求
attempt at 企图,努力
attitude to/towards 态度,看法
a great/good deal of 大量 ( 的 ) ,许多 ( 的 )
influence on 影响
interference in 干涉
interference with 妨碍,打扰
第六组
introduce to 介绍
a lot (of) 许多 ( 的 ) ,大量 ( 的 )
lots of 大量,很多
fall in love with 相爱,爱上
a matter of( 关于 ……) 的问题
a number of 若干,许多
reply to 回答,答复
a series of 一系列,一连串
英语常考词语固定搭配(四)
第七组
trolley bus 电车
I. D. card 身份证
credit card 信用卡
no doubt 无疑,必定
next door 隔壁
out of doors 在户外
face to face 面对面地
as matter of fact 实际情况,真相
a few 有些,几个
quite a few 还不少,有相当数目的
a little 一点,稍微,一些,少许
little by little 逐渐地
quite a little 相当多,不少
no matter 无论
the moment (that) 一 …… 就
no more 不再
第八组
fair play 公平竞赛;公平对待
in demand 有需要,销路好
rest room 厕所,盥洗室
primary school 小学
side by side 肩并肩,一个挨一个
heart and soul 全心全意
step by step 逐步
ahead of time 提前
all the time 一直,始终
once upon a time 从前
once in a while 偶尔,有时
no wonder 难怪,怪不得
word for word 逐字地
decline with thanks 婉言谢绝

三、介词+介词形式
第一组
account for 说明 ( 原因等 )
aim at 瞄准,针对
allow for 考虑到
appeal to 呼吁,要求
arrive at 达成,得出
ask after 询问,问候
ask for 请求,要求
attach to 附属于,隶属于
begin with 从开始
break into 闯入
break off 断绝,结束
break through 突破
break up 中止,结束;打碎,折断
bring about 带来,造成
bring down 打倒,挫伤;降低
bring forth 产生,提上
第二组
bring forward 提出
bring out 使出现;公布;出版
bring up 教育,培养,使成长
build up 积累;堵塞;树立,逐步建立;增进;锻炼
call for 邀请;要求;需求
call forth 唤起,引起;振作起,鼓起
call off 放弃,取消
catch at 抓住 ( 东西 )
call on/upon 访问,拜访;号召,呼吁
call up 召集,动员;打电话
care for 照管,关心;喜欢,意欲
carry off 夺去
carry on 继续下去;从事,经营
carry out 贯彻,执行;实现
come to 总计,达到;苏醒,复原
count on 依靠;期待,指望
count up 把 …… 相加
第三组
cover up 掩饰,掩盖
cut across 走捷径,抄近路
deal with 处理,对付,安排
do without 没有 …… 也行
fill in/out 填充,填写
get at 得到,接近;意思是
get into 进入,陷入
go after 追求
go into 进入;研究,调查
go for 竭力想取得;喜爱;支持,拥护
go through 经历,经受;详细检查
go with 伴随,与 …… 协调
go without 没有 …… 也行
improve on 改进
keep to 保持,坚持
lie in 在于
live up to 不辜负
第四组
live on/by 靠 …… 生活,以 …… 为食
live through 度过,经受过
look after 照管,照料
look at 看望,注视
look for 寻找,寻求
look into 调查,观察,过问;窥视
look over 检查,查看,调查
look through 仔细查看,浏览,温习
make for 走向,驶向;有助于
occur to 被想到,被想起
play with 以 …… 为消遣,玩弄
refer to 参考,查阅,涉及,提到
run for 竞选
run into 撞上,偶然碰见
see to 注意,负责,照料,修理
send for 派人去请,召唤;索取
第五组
send in 呈报,递交,送来
serve as 作为,用作
set aside 挑出,拨出,留出;拒绝
sit for 参加
stand by 支持,帮助;袖手旁观
stand for 代替,代表,意味着
stand against 反抗,抵抗
stick to 坚持,忠于,信守
take after 与 …… 相像
take for 把 …… 认为是,把 …… 看成是
take in 接受,吸收;了解,理解
take to 喜欢,亲近
touch on 关系到,涉及
turn into 变成
turn to 变成;求助于,借助于
turn off 关上;出产;解雇

四、动词+介词形式
第一组
break down 损坏,分解,瓦解
break in 闯入;打断,插嘴
break out 逃出;突然发生,爆发
bring to 使恢复知觉
burn out 烧掉
burn up 烧起来,旺起来;烧完
catch on 理解,明白
check in 办理登记手续
check out 结账后离开;检验,核查
check up (on) 校对,检查,检验
cheer up 使高兴,使振奋
clear away 扫除,收拾
clear up 收拾;澄清;放晴
make it clear that 弄清楚
come off 实现,成功,奏效
come on 请,来吧,快点;开始,出场,上演
come out 出版;出现,显露;结果是
第二组
come round (around) 来访,前来;苏醒,复原
come through 经历,脱险
come up 走近,上来;发生,被提出
cross out 删去,取消
cut back 削减,减少
cut down 削减,降低
cut in( 汽车 ) 抢道;插嘴,打断
cut off 切断;删去;停止
cut out 删除
cut short 突然停止
die down 渐渐消失,平息
die out 消失,灭绝
draw in( 火车、汽车 ) 到站
draw up 写上,画上;草拟;停住
dress up 穿上盛装,打扮得很漂亮
drop by/in 顺便来访
dry out 干透,使干
dry up 干涸,枯竭
第三组
drop off 减弱,减少
drop out 退出,离队
fall behind 落后
fall out 争吵;结果是
fall through 落空,失败
feed in 输入
find out 查明
get across 解释清楚,使人了解
get around/round 走动,旅行; ( 消息 ) 传开
get away 逃脱,离开
get by 通过,经过
get down 从 …… 下来;写下
get in 进入;收获,收集
get off 从 …… 下来;离开,动身,开始
get over 克服; ( 从病中 ) 恢复过来
get through 结束,完成;接通电话
have got to (do) 不得不,必须
第四组
get together 集合,聚集
get up 起床;增加,增强
give away 泄露;分送
give back 送还,恢复
give in 交上;投降,屈服
give off 放出,释放
give out 分发,放出
give up 停止,放弃
go ahead 开始,前进;领先
go by 过去
go down 下降,降低;被载入,传下去
go off 爆炸,发射;动身,离开
go out 外出;熄灭
go over 检查,审查;复习,重温
go round/around 足够分配
go under 下沉,沉没;失败;破产
go through 通过,审查,完成
第五组
go up 上升,增加;建起
hand down 流传下来,传给,往下传
hand in 交上,递交
hand on 传下来,依次传递
hand out 分发,散发,发给
hand over 交出,移交,让与
hang about 闲荡,徘徊,逗留
hang back 犹豫,踌躇,畏缩
hang on 抓紧不放;继续下去
hang up 挂断 ( 电话 )
have back 要回,收回
have on 穿着,戴着
hold back 踌躇,退缩;阻止,抑制
hold on 继续,握住不放
hold out 维持,支持;坚持,不屈服
hold up 举起,阻挡,使停止;抢劫
第六组
hurry up( 使 ) 赶快,迅速完成
keep back 阻止,阻挡;隐瞒,保留
keep down 控制,压制,镇压;压低
keep off 不接近,避开
keep up 保持,维持;继续,坚持
let down 放下,降低;使失望
let in 让 …… 进入,放 …… 进来
let off 放 ( 烟,烟火 ) ,开 ( 枪 )
let out 放掉,放出,发出
line up 排队,使排成一行
look back 回顾,回头看
look out 留神,注意,提防,警惕
look on 旁观,观看;看待,视作
look up 查阅,查考;寻找 ( 某人 )
look in 顺便看望
make out 辨认,区分;理解,了解
make out of 用 …… 做,从 …… 得出
第七组
make up 构成,拼凑;弥补,赔偿;化装
mix up 混淆,混合,搞糊涂
pass away 去世,逝世
pass off 中止,停止
pass to 转到,讨论,传到
pass out 失去知觉,昏倒
pay back 偿还,回报
pay off 还清 ( 债 )
pay down 即时交付,用现金支付
pay up 全部付清
第八组
pick out 选出,挑出,拣出;辨认,辨别出
pick up 拾起, ( 偶然 ) 得到; ( 车船 ) 中途搭 ( 人 ) ,学会
pull down 拆毁,拉倒;拉下,降低
pull in( 车 ) 停下,进站,船 ( 到岸 )
pull off 脱 ( 帽、衣 )
pull on 穿,戴
pull out 拔出,抽出; ( 车、船 ) 驶出
pull together 齐心协力
pull up( 使 ) 停下
put across 解释清楚,说明
put aside 储存,保留
put away 放好,收好;储存
put down 记下,放下;镇压,平定
put forward 提出
put in 驶进
put on 穿上,戴上;上演;增加 ( 体重 )
put out 熄灭,关 ( 灯 ) ;出版,发布;生产
put right 改正 ( 错误 ) ,整理
第九组
put up 提起,举起,提 ( 价 ) ;为 …… 提供食宿,投宿
ring off 挂断电话
rub out 擦掉,拭去
run down 撞倒,撞沉;追捕,追查
run off 复印,打印
run over 略读,略述;辗过,浏览,匆匆复习
see off 给 …… 送行
see through 看穿,识破;干完,干到底
set back 推迟,延缓,阻碍
set down 卸下,放下,记下,记入
set forth 阐明,陈述
set off 出发,动身;引起,使发生
set out 陈列,显示;动身,起程;制定
set up 创立,建立,树立;资助,扶持
show in 领入
show off 炫耀,卖弄
第十组
show up 使呈现,使醒目
shut out 排除
sit in 列席,旁听
sit up 迟睡,熬夜
speed up 使加速
stand out 突出,显眼
stand up 站起来,耐用
step up 提高,加快,加紧
step in 插入,介入
stick out 伸出,突出;坚持到底,继续
take away 消除;消耗
take down 记下,写下
take off 拿走,脱下;起飞
take on 呈现;接纳,承担,从事
take over 接管,接办
take up 占据;开始;拿起,接收
take up with 和 …… 交往,忍受,采用


初中英语常用介词短语列举:
1)at once 立刻         
2)at last 最后
3)at first 起先,首先        
4)at the age of… 在……岁时
5)at the end of… 在……之末      
6)at the beginning of… 在……之初
7)at the foot of… 在……脚下      
8)at the same time 同时
9)at night/noon 在夜里/中午      
10)with one's help 在某人的帮助下,由于某人的帮助
11)with the help of … 在……的帮助下    
12)with a smile 面带笑容
13)with one's own eyes 亲眼看见     
14)after a while 过了一会儿
15)from now on 从现在起       
16)from then on 从那时起
17)far example 例如        
18)far away from 远离
19)from morning till night 从早到晚    
20)by and by 不久
21)by air mail 寄航空邮件  
22)by bike/air/train/bus 骑自行车/乘飞机/火车/汽车
23)by ordinary mail 寄平信  
24)by the way 顺便说
25)by the window 在窗边
26)by the end of… 到……底为止
27)little by little 逐渐地  
28)in all 总共
29)in fact 事实上  
30)in one's twenties 在某人二十几岁时
31)in a hurry 匆忙  
32)in the middle of 在……中间
33)in no time (in a minute) 立刻,很快  
34)in time (on time) 及时
35)in public 公众,公开地  
36)in order to 为了……
37)in front of 在……前面
38)in the sun 在阳光下
39)in the end 最后,终于
40)in surprise 惊奇地
41)in turn 依次  
42)of course 当然
43)a bit (of) 有一点儿  
44)a lot of 许多
45)a little 一点儿  
46)on one's way to 某人在去……的路上
47)on foot 步行,走路  
48)a talk on space 一个关于太空的报告
49)on the other hand 另一方面  
50)at/on the weekend 在周末
51)on the left (right) 在左(右)边  
52)on the other side of 在……另一边
53)on the radio 通过收音机(无线电广播) 
54)to one's joy 使……高兴的是
55)to one's surprise 使……惊讶的是 


并列连词
主要是用来表示并列关系、选择关系、因果推理关系等。也可用来连接平行的词,词组或分句。

并列连词表示关系及代表实例:
1.表示并列关系
表示并列关系的连词主要含有“和”、“补充”、“增加”等意思。用来表达并列关系的连词有如下几个:
and 和 both...and...二者都
either...or...或者...或者...
neither...nor...既不...也不...
as well as 也、连同
not only...but (also)... 不但...而且...
e.g.
I used to live in Paris and London.
我过去住在伦敦和巴黎。
Both Jane and Jim are interested in pop music.
詹妮和吉姆对流行音乐都很感兴趣。
She is not only kind but also honest.
她不但和蔼而且诚实。
Bob as well as his parents is going on holiday this summer.
鲍勃和他的父母今年夏天要去度假。

2.表示转折关系
常用来表示转折关系的并列连词有如下几个:
but 但是
yet 然而
still 仍然
while 然而
while 然而、偏偏
e.g.
The winter in Beijing is very cold while that of Kunming is warm.
北京的冬天很冷,然而昆明的冬天却很温暖。
I explained twice, still he counldn't understand.
我解释了两遍,然而他却还不懂。

3.表示选择关系
表示选择关系的并列连词:
or 或者
or else 否则
otherwise 否则
neither...nor... 既不...也不...
either...or... 或者...或者...
e.g.
Would you like leave or would you like to stay?
你是想走还是想留?
You can come either on Saturday or on Sunday.
你可以星期六来也可以星期天来。
Neither you nor I nor anyone else believes such things.
不管你我或者其他任何人都不会相信这件事。

4.表示因果推理关系
表示因果关系的并列连词主要有so,for,then,therefore 等。
e.g.
The air here is polluted, so the crops are dying.
这里的空气受到了污染,所以庄稼快死了。
The leaves of the trees are falling, for it's already autumn.
树叶在落下,因为秋天已经到来了。


并列连词注意事项:
并列连词for引导的分句只能放在句尾,前面用逗号隔开,表示补充说明的微弱理由,只是为前面的内容提供判断的理由,有时译为并列的某种形式。
这与because不同,because引导的是一种明确的因果关系,解释原因,常可回答why的提问。
几个特殊并列连词用法:
一、表示并列关系的and,or,well,as,not only...but also... 等连词也有比较活跃的用法。
and 作为并列连词有多重含义,除了可以表示并列关系外,还可以表示顺承、目的、条件、反复等关系。
e.g:He went to market and bought some vegetables.(表示顺承,动作的先后发生)
他到市场买了一些蔬菜。
Come and help me out.(表示目的)
过来帮我一下。
Be careful and you'll make fewer mistakes.(表示条件)
如果仔细,你所犯的错就少。

二、or 与 either...or...
or表示为“否则”的话,前句一般是祈使句,后句用一般将来时。
在表示选择关系时or 与 either...or... 用法相同,但 either...or...更具强调性。
在多个对象进行选择时,可以用A or B or C... , either A or B or C... , neither A or B or C... 。
e.g:Either Jim or Jake or Jeff knows about this.

三、as well as 与not only... but also...
名词+as well as+名词作主语时,强调前面的名词,谓语动词要根据前面的名词而定。
not only...but also...连接名词作主语时,其强调在后者,谓语动词要根据后面的名词而定。
e.g:China as well as many other countries loves peace.
中国与世界上的其他许多国家一样热爱和平。
Not only Bill but also his parents want to go traveling by bike.
不仅比尔而且他的父母都想骑自行车去旅游。
注:当or,neither...nor...,either...or 等连接主语时,谓语动词由or或nor后面的部分而定。
并列连词表示关系:

种类

用法 

举例 

并列连词

表示转折关系

but, yet等

表示因果关系

For, so等

表示并列关系

And, or, either…or,
neither…nor, not only..
but also, as well as等


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?
“It”用法及其句型和固定搭配,是英语语法的重点、难点,又是近几年考试的热点,因此在复习中应给予足够的重视。
It 句型归纳:
1. It is +adj.(+for sb./sth.) + to do sth.
用于此句型的形容词有:easy, hard, difficult,possible, important, impossible, necessary, good, bad, exciting, interesting, surprising等。如:
 It is necessary to change your job.
 It was very hard for them to walk such a long way in the snow.
2.It is +n.(+for sb./sth.) + to do sth.
用于此句型的名词有: pity, shame, pleasure, one’s duty, one’s job, fun, joy, good manners, bad manners等。如:
 It is a pity for you to have missed such a wonderful play.
 It is bad manners for the young to take up the seats for the old.
3.It is +adj.+of sb.+to do sth.
此句型中的形容词主要描述某人的品德、特征。能用于该句型的形容词有: kind, nice, wise,
silly, polite, impolite, friendly, foolish, clever等。如:
 How silly it was of you to give up such a good chance!
 It is friendly of the family to try to make me feel at home in their house.
4.It is +adj.(+n.)+doing sth.
此句型中的形容词和名词常见的有:no/little use, no/much good, useless等。如:
 It’s no use crying over spilt milk.
5.It takes sb.+一段时间+to do sth. 表示“做某事花费某人多长时间”。如:
It took us half an hour to ride to the town by the sea.
6.It is +及物动词的过去分词+that从句
此句型中常见的及物动词的过去分词有:said, told, known, reported, recorded, thought, believed, considered等。如:
It is reported that the Russian President will visit China next week.
7.It +不及物动词+that从句
此句型中不及物动词常见的有:seem, happen, appear, matter等。如:
 It seems that there will be a heavy snow tomorrow.
 It happened that I met my good friends in the museum yesterday.
8.强调句型:It is+被强调部分+that/who从句
在使用强调句型时要注意,指人时可以用who或that,其它情况一律用that。如:
 It was under the bed that my brother hid the ball this morning.
 It is Mr Bell who/that often comes and looks after the old man.
9.It is/has been+一段时间+since从句。如:
It is /has been three years since we saw each other last.
10.It is (high) time that sb. did sth.
该句型表示“某人现在该做某事了”,从句常用过去时(虚拟语气)说明现在应该做的事情。如:
 It’s six o’clock.It is high time that we went home now.

It 常用的固定搭配:
1. make it
(1)在口语当中相当于succeed,表示:成功、做到、说定、赶上、及时到达
例  It's hard to make it to the top in show business.
(2)在口语中相当于fix the date for,表示“约定好时间”
例  —Shall we meet next week?
—OK. We just make it next Saturday.
2. as it is
(1)相当于in fact,in reality表示“事实上,实际情况是……”
例  We had planed to finish the task today,but as it is we probably won't finish it until next week.
(2)相当于方式状语从句,表示“照原样”
例  Leave the table as it is.
3. as it were
相当于as one might say,that is to say,表示“也就是说,可以说,换句话说”
例  He is,as it were,a modern Sherlock Holmes.
4. if it weren't for…/if it hadn't been for…
用来引导虚拟语气,相当于without,or but for,表示“如果不是……,要不是……”
例  If it weren't for Tom,I wouldn't be alive today.
5. that's it
(1)相当于That's all. That's so much. 表示“至此为止,没有别的了”
例  You can have one more sweet,and that's it.
(2)相当于 That's right.表示“对啦”
例  — I guess the key to the problem is thechoice “A”
—That's it.
6. catch it
在口语中,相当于be punished/scolded for doing sth. wrong. 表示“因做错事而挨骂,受责备,受批评,受惩罚”
例  We'll really catch it form our teacher if we're late for class again.
7. have it
(1)相当于say,insist表示“说,主张,表明,硬说”
例  Rumour has it that they are getting divorced.
(2)相当于get to know something,表示“了解,知道,获悉”
例  I had it from John that she was going abroad.
8. have what it takes
在口语中,相当于be well qualified for,表示“具有成功的条件”
例  You can take it from me that your daughter has what it takes to be a star.
9. so it seems / appears.
10. Keep at it!(Don't give up!)
相当于go on,表示“继续做,不放弃”
例  My teacher asked me to keep at it.
11. Go it!(Go on!)拼命干,莽撞
12. Now you have done it!(You have done sth. wrong.)
13. Now you'll catch it!(You'll be punished.)
14. As it happened,…
在口语中,相当于it's a pity that…,表示“真不凑巧,真遗憾”
例  As it happened,they were out.
15. As it turned out,…
在口语中,相当于it was found to be in the end,表示“最后被证明是”
例  As it turned out,his statement was false.
16. Such as it is(they are)
在口语中,相当于although it may not be worth much,表示“虽然没有多大价值”
例  You can borrow my exam notebook,such as it is.
17. Take it/things easy.
相当于Don't worry or don't hurry. 用来劝告别人,表示“不要慌,别担心,存住气”
例  Take it easy! He will do it well.
18. Take it from me.
在口语中,相当于believe me what I say.表示“请相信我的话,我敢担保”
例  You can take it from me that he will make it this time.
19. For what it is worth…
在口语中,相当于although I'm not sure it's of value,表示“不管其价值如何”
例  Here is the article I promise you,for what it's worth.
20. Worth it
在口语中,相当于useful,表示“有好处,值得做”
例  Don't hesitate about it! It's worth it.
21. Believe it or not.表示“信不信由你”
例  Believe it or not,Tom is getting married to Mary next Sunday.
22. Take it or leave it. v. 要么接受要么放弃
例  That is my last offer. You can take it or leave it.
23. It all depends/that all depends
在口语中,相当于it hasn't been decided yet,表示“那得看情况,还没有定下来”
例  —Are you going to the countryside for holiday?
—It/That all depends.
24. It's up to sb.
在口语中,相当于it's decided by sb. 表示“由……决定,由……负责,取决于……”
例  —Shall we go out for dinner?
—It's up to you.

it用法小结:
It用作实词
表达以下概念:
指代前文提到的事物,前文中的this, that;
替代前文中的内容;
指代一位性别不明的小孩或未知的人;
指代未指明但谈话双方都知道的那件事;
指代时间、天气、气候、距离等自然现象。

一、it 作人称代词的用法
1. 指事物
作为人称代词,it 可以除人以外的一切事物或动物。如:
I dropped my watch and it broke. 我把手表掉在地上摔坏了。
It’s hard work, but I enjoy it. 工作很辛苦,可是我乐意干。
“Where is the dog?” “It’s in the bedroom. ” “狗在哪?”“在卧室里”。
2. 指人
it 指人主要用于指不性别不明的婴儿或用于确认某人的身份。如:
Is it a boy or a girl? 是男孩还是女孩?
There is a knock on the door. It must be the postman. 有人在敲门,一定是邮递员。
【说明】在答语中,常用来指本人,如说 It’s me。
3. 代替某些代词
代词 it 还可用于代替指示代词this, that 以及复合不定代词 something, anything, nothing等。如:
“What’s this?” “It’s a new machine. ” “这是什么?”“是一种新机器”。
Nothing is wrong, is it? 没出什么问题,是吗?

二、it 作非人称代词的用法
1. 基本用法
it 作非人称代词的用法,主要用于指时间、距离、价值、天气、气候及温度等自然现象。如:
It’s too late to go there now. 现在去那儿已经太迟了。
It rained all day yesterday. 昨天下了一天的雨。
It can get very hot here. 这里有时会很热。
2. 用于某些句型
It’s time for sth. 该做某事了。
It’s time to do sth. 该做某事的时候了。
It’s time for sb to do sth. 某人该干某事了。
It’s (about / high) time + that-从句. 某人该做某事了。(从句谓语用过去式,有时也用“should+动词原形”)
It’s first (second) time + that-从句. 某人第几次干某事。(从句谓语用现在完成时)
It’s + 时间段 + since-从句. 自从……有一段时间了。
It’s + 时间段 + before-从句. 过多长的时间才……

三、it用作形式主语
1. 基本用法
当不定式、动名词、从句等复杂成分用作句子主语时,为保持句子平衡,通常把真正的主语放在句末,而在句首使用形式主语it。如:
It’s very important to remember this. 记住这一点很重要。
It’s hard work climbing mountains. 爬山是费劲的事。
It’s unknown when he will come. 他什么时候来还不知道。
2. 用作形式主语的的重要句型
(1) It + be + adj. for (of) sb to do sth 某人做某事……
It is hard for him to make up his mind. 他很难下定决心。
It was foolish of her to say such a thing. 她说那样的话,真是太蠢了。
【说明】介词 of 与 for 的区别是:
of 用于指某人的性格、属性、特征等,介词for表示对象,意为“对……来说” 。
(2) It takes sb + 时间段 + to do sth. 某人做某事花了……时间
It takes years to master a new language. 要花多年的时间才能掌握一门新的语言。
【说明】此句型可以有以下多变种变体:It took me an hour to write the letter.
=The letter took me an hour (to write). =I took an hour to write the letter. 我写这封信花了一个小时
(3) It is up to sb to do sth. 该由某人做某事
It’s up to you to to make the choice. 得由你来作选择。
(4) it look (seem, appear, happen, occur) that [as if]… 似乎……
It seemed as though he didn’t recognize me. 他似乎没认出我来。
It happened that I was out when he called. 他打电话时我碰巧不在家。
(5) If it were not for… / If it hadn’t been for… 若不是因为……
If it were not for their help, we couldn’t have got over the difficulties. 要不是他们帮助,这些困难我们不克服不了的。

四、it用作形式宾语
1. 基本用法
当不定式、动名词、从句等复杂成分用作宾语且其后跟有宾语补足语时,通常会在宾语补足语前使用形式宾语,而将真正的宾语移至句末。
其基本结构为“动词+it+宾语补足语+不定式(动名词或从句)”。如:
I find it difficult to do the job well. 我发现做好这件事不容易。
I think it best that you should stay here. 我认为你最好住这儿。
We think it no use complaining. 我们认为抱怨是没有用的。
2. 用作形式宾语的几个特殊结构
(1) 动词+ it + that-从句。如:
I like it that you came. 你来了,我很高兴。
I take it (that) he will come on time. 我认为他会准时来的。
You can put it that it was arranged before. 你可以说这是以前安排的。
Rumor has it that the defence minister will soon resign. 据传闻,国防部长不久就要辞职。
【说明】能用于此结构的动词不多,常见的有 have, take, put, like 等。
(2) 动词 + it + when (if)-从句。如:
I dislike it when you whistle. 我不爱听你吹口哨。
We really appreciate it when she offered to help. 她来帮忙了,我们十分感激。
I’d prefer it if I didn’t have to do so much work. 要是我不必做那么多工作,好就太好了。
【说明】能用于此结构的动词不多,常见的有 enjoy, hate, love, like, dislike, appreciate, prefer 等。
(3) 动词 + prep + it + that-从句。如:
See to it that you’re not late again. 注意千万不要再迟到。
Look to it that this doesn’t happen again. 注意不要再发生这种事。
You may rely on it that he’ll come to meet you. 你放心,他会来接你的。
I can’t answer for it that he will come. 我不能保证他会来。
【说明】能用于此结构的动词不多,常见的有see to, look to, insist on, stick to, depend on, answer for 等。
(4) 动词 + it + 介词短语+ that-从句。如:
I owe it to you that I am still alive. 多亏有你我才仍然活着。
I took it for granted that he would help us. 我认为他会帮助我们的。
【说明】能用于此结构的动词不多,常见的有take it for granted, bring it to sb’s attention, owe it to sb 等。

it在强调句中的使用
It is+被强调部分+that(who)+其他
在使用强调句型时需注意以下几点:
1. 请注意强调句型的特殊疑问句 
2. 在强调原因状语从句时,只能强调由because所引导的从句。
3. 在强调not … until结构时必须把not与until一起放到被强调的位置上。
4. 注意强调句型与定语从句的区别。
5. 不管被强调部分是单数还是复数,其前一律用It is / It was,而不能用They are / There were之类的。
6. 被强调部分是指人时,被强调部分后可用that / who,被强调部分指物时,被强调部分后只能用that。
7. 被强调部分是指时间或地点时,被强调部分后通常用that,一般不用when,where之类的。例:
It is I who am right. 是我对。
It was you that were wrong. 是你错了。
It was in the Japan that he died. 他是死于日本。
It was yesterday that he got married. 他是昨天结婚的。
It was a computer that he bought last week. 他上个星期买的是一台电脑。
Where was it that she lived? 她是住在什么地方?
When was it that he left for Japan? 他是什么时候离开去日本的?
Who is it that teaches you English? 是谁教你们英语?