英语分站

1、 不定式作宾语　
　　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,undertake
　　举例：
　　The driver failed to see the other car in time.
　　司机没能及时看见另一辆车。
　　I happen to know the answer to your question.
　　我碰巧知道你那道问题的答案。
　　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。
　　注意:疑问词带不定式在句中作成分时，谓语动词用单数。
　　The question is how to put it into practice.
　　问题是怎样把它付诸实施。
　　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
   　例句：
　　a.　Father will not allow us to play on the street.
　　父亲不让我们在街上玩耍。
　　b.　We believe him to be guilty.
　　我们相信他是有罪的。
　　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.
　　典型例题:
　　The next morning she found the man ___ in bed，dead.
　　A. lying　 B. lie　 C. lay　 D. laying
　　答案：A.find的宾语后面，用分词或分词短语，起宾语补足语作用。现在分词表达主动，也表达正在进行，过去分词表达被动。
　　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.
　　我们认为汤姆是班上最好的学生之一。
　　典型例题
　　Charles Babbage is generally considered　___ the first computer.
　　A. to invent　B. inventing　 C. to have invented　 D. having invented
　　答案：A. 由consider to do sth. 排除B、D。. 此句只说明发明这一个事实，不定式后用原形即可。而C为现在完成时，发明为点动词一般不用完成时，且此处也不强调对现在的影响，因此不选C。
　　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,mean…
　　The book is believed to be uninteresting.
　　人们认为这本书没什么意思。