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原创 IT生活 作者:leonaifei 时间:2007-09-05 14:09:08 0 删除 编辑

1) 动词+ 不定式
afford  aim   appear  agree  arrange  ask   be   
decide bother  care  choose   come    dare   demand desire  determine    
expect   elect  endeavor     hope       fail  happen 
help  hesitate learn  long   mean   manage  offer  ought  
plan  prepare pretend   promise refuse seem   tend   wait    wish    
 The driver failed to see the other car in time.
 I happen to know the answer to your question.
2)动词+不定式 ; 动词+宾语+不定式
ask, beg, choose, expect , hate, help intend like, love, need prefer,
prepare, promise, want, wish…
   I like to keep everything tidy. 我喜欢每件东西都保持整洁。
   I like you to keep everything tidy. 我喜欢你年使每件东西都保持整洁。
   I want to speak to Tom.  我想和汤姆谈话。
   I want you to speak to Tom.  我想让你和汤姆谈话。
3) 动词+疑问词+ to
decide, know, consider forget, learn, remember, show, understand, see,
wonder, hear, find out, explain, tell
  Please show us how to do that. 请演示给我们如何去做。
  There are so many kinds of tape-recorders on sale that I can't make up
my mind which to buy.有这么多的录音机,我都拿不定主意买哪一种。
   The question is how to put it into practice.
2 不定式作补语
1) 动词+宾语+不定式(to do)
advise   allow   appoint   believe   cause   challenge command 
compel   consider  declare   drive   enable  encourage  find    forbid  
force   guess   hire    imagine  impel   induce  
inform  instruct  invite   judge    know    like   order   
permit  persuade  remind   report  request   require  select send   
state   suppose   tell    think  train   trust   understand urge    warn 
  a. Father will not allow us to play on the street.       
  b. We believe him to be guilty.
Find 的特殊用法:
  Find 后可用分词做宾补,或先加形式宾语,再加形容词,最后加带to 的动词不定式。find后也可带一个从句。此类动词还有get,have。
   I found him lying on the ground.
   I found it important to learn.
   I found that to learn English is important.
2) to + be 的不定式结构,作补语的动词。
Acknowledge,  believe, consider,  think, declare(声称), discover,
fancy(设想), feel   find, guess,  judge,  imagine,   know, 
prove,     see(理解), show,    suppose,     take(以为),   understand
   We consider Tom to be one of the best students in our class.
3) to be +形容词
Seem,     appear,   be said,  be supposed,  be believed, be thought, be
known,  be reported, hope, wish,  desire,   want,    plan,  expect,   
 The book is believed to be uninteresting.
4) there be+不定式
believe, expect, intend, like, love, mean, prefer, want, wish, undrstand
 We didn't expect there to be so many people there.我们没料到会有那么多人在哪里。
注意 : 有些动词需用as 短语做补语,如regard, think believe, take, consider.
 We regard Tom as our best teacher. 我们认为汤姆是我们最好的老师。
 Mary took him as her father . 玛丽把他当作自己的父亲。
3 不定式主语
1) It's easy (for me) to do that.我做这事太容易了
easy, difficult,  hard,  important,  possible,  impossible, comfortable, 
necessary,  better;  
the first,  the next,   the last,  the best, too much,  too little,  not
 It's so nice to hear your voice.
 It's necessary for you to lock the car when you do not use it.
2) It's very kind of you to help us. 他帮助我们,他真好。
Kind, nice,  stupid, rude, 
clever, foolish, thoughtful, thoughtless, brave, considerate(考虑周到的), silly, 
   It was silly of us to believe him. 我们真愚蠢,竟然相信了他。
   It seemed selfish of him not to give them anything. 他不给他们任何东西,这显得太自私了。

注意:1) 其他系动词如,look,appear等也可用于此句型
   2) 不定式作为句子成分时,动词用单数形式。
   3) 当不定式作主语的句子中又有一个不定式作表语时,不能用It is… to…的句型
    (对)To see is to believe. 百闻不如一见。
    (错)It is to believe to see.
4 It's for sb.和 It's of sb.
1)for sb. 常用于表示事物的特征特点,表示客观形式的形容词,如easy, hard, difficult,  interesting,
   It's very hard for him to study two languages. 对他来说学两门外语是很难的。
2)of sb的句型一般用表示人物的性格,品德,表示主观感情或态度的形容词,如good, kind, nice, clever, foolish,
   It's very nice of you to help me. 你来帮助我,你真是太好了。
for 与of 的辨别方法:
   You are nice. (通顺,所以应用of)。
   He is hard. (人是困难的,不通,因此应用for。)
5 不定式作表语
   My work is to clean the room every day.
   His dream is to be a doctor.
6 不定式作定语
   I have a lot of work to do. 
   So he made some candles to give light.
7 不定式作状语
To… only to (仅仅为了), in order to, so as to, so(such)… as to… (如此……以便……)
  He ran so fast as to catch the first bus. 他飞快地跑以便赶上第一班车。
  I come here only to say good-bye to you. 我来仅仅是向你告别。

  What have I said to make you angry.
  He searched the room only to find nothing.
3) 表原因
  I'm glad to see you.
8 用作介词的to
  to 有两种用法: 一为不定式+动词原形; 一为介词+名词/动名词, to 在下面的用法中是第二种,即to+ 名词/动名词:

admit to承认,       confess to承认,
be accustomed to 习惯于,  be used to 习惯于, stick to 坚持,       turn to开始,着手于,
devote oneself to 献身于, be devoted to 致力于, look forward to 盼望,   pay
attention to 注意
9 省to 的动词不定式
1) 情态动词 ( 除ought 外,ought to):
2) 使役动词 let, have, make:
3) 感官动词 see, watch, look at, notice , observe, hear, listen to, smell,
feel, find 等后作宾补,省略to。
注意:在被动语态中则to 不能省掉。
  I saw him dance.
 =He was seen to dance.
  The boss made them work the whole night.
 =They were made to work the whole night.
4) would rather,had better:
5) Why… / why not…:
6) help 可带to,也可不带to, help sb (to) do sth:
7) but和except:but前是动词do时,后面出现的动词用不带to的动词不定式。
8) 由and, or和than连接的两个不定式,第二个to 可以省去:
9) 通常在discover, imagine, suppose, think, understand等词后,可以省去to be: 
   He is supposed (to be) nice. 他应该是个好人。

   He wants to move to France and marry the girl.
He wants to do nothing but go out.

比较:  He wants to do nothing but go out.
     He wants to believe anything but to take the medicine.
10 动词不定式的否定式
  Tell him not to shut the window… 
  She pretended not to see me when I passed by. 我走过的时候,她假装没看见。


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