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1、非谓语动词之,To do不定式,Petersogood制作,试题先练,1. Robert is said _ abroad, but I dont know what country he studied in.A. to have studied B. to study C. to be studying D. to have been studying 2. The purpose of new technologies is to make life easier, _ it more difficult.A. not make B. not to make C. not making
2、D. dont make,3. Ive worked with children before, so I know what _ in my new job.A. expected B. to expect C. to be expecting D. expects,试题先练,4. Having a trip abroad is certainly good for the old couple, but it remains _ whether they will enjoy it. A. to see B. to be seen C. seeing D. see,5. The mothe
3、r didnt know _ to blame for the broken glass as it happened while she was out.A. who B. when C. how D. why 6. The boy wanted to ride his bicycle in the street, but his mother told him _ not to B. not to do C. not do it D. do not to,试题先练,7. I would love _ to the party last night but I had to work ext
4、ra hours to finish a report.A. to go B. to have gone C. going D. having gone8. Charles Babbage is generally considered _the first computer.A. to invent B. inventingC. to have invented D. having invented,试题先练,一、不定式构成,不定式,to do,to be done,to be doing,to have done,to have been done,-,(1).They pretended
5、 not to see us.,(2). He pretended to be studying.,(3).She pretended to have known it before.,强调同时发生,强调先后,一、不定式构成,To see is to believe. Its important for us to learn English well . Its kind of you to think so much of us.,(1). 主语,单个不定式作主语时,谓语动词用单数 To do 做主语，往往用it作形式主语,二、不定式的用法及考点,(2). 表语,My aim to hel
6、p the patient.,is,主语常常是表意向，打算，计划的词。 如wish, idea, task, purpose, duty, dream, aim等,注意：如果主语里有含有实义动词do时，做表语的to do 一般要省去to What you have to do is work hard.,a). I plan to go home. The workers demanded to get better pay.,(3) 宾语:三种情况,常用动词不定式作宾语的动词常考的有： hope, refuse, set out，manage, pretend, plan, afford,
7、expect， mean, promise, try, prefer,decide, determine,want, wish等,I have no idea about how to do it. I dont know what to expect in the future. 注意：如果作宾语的不定式结构有自己的补语，则应使用it作形式宾语I find it difficult to understand him.We thought it wrong not to help her.They found it impossible to get everything ready in
8、time.,b). WH疑问词+to do,注意： 不定式用在介词but, except, 后作宾语时,如果这些介词前有行为动词do的 各种形式,那么介词后的不定式不带to, 相反则带to.,(1). She could do nothing but cry. (2). I have no choice but to go.,c.) be +adj.+to do做宾语,be+glad, afraid, sure, pleased, determined, willing, eager, anxious, ready等构成的谓语后可加不定式to do做宾语 I am sure to finish
9、 the work on time. I am determined to give up smoking.,注意区别,try doing 尝试做 try to do 试图/努力做 remember/forget doing 记得/忘记做过的事 remember/forget to do 记得/忘记去做 stop to do 停下来去做 stop doing 停止做 mean to do 打算做 mean 意味着 regret to do 遗憾地做 regret doing 后悔做,1)带to的不定式作宾补,ask, advise, allow, remind, persuade, order
10、, command, warn, force等+ sb to do,He asked you to call him at ten oclock. The note reminds me to be careful whatever I do. Id never allow my children to behave like that.,(4). To do 做宾补,使役动词make, have, let; 感官动词see, watch, observe, hear, listen to, notice 如: He made a face and made everybody laugh.
11、注意：被动时加to,此为出题点. We see him go upstairs. He was seen to go upstairs.,2) 不带to的不定式作宾补。,I have something to say. He has a lot of homework to do . He is looking for a room to live in . There is nothing to worry about.,(5). 定语,a.如果不定式中的动词是不及物动词, 则不定式中要有介词. b. 如果为place, time时后习惯上把介词省略 I want a quiet place
12、 to live.,注意1:常考的不定式作定语的词有way,ability, chance, ambition, anxiety, attempt, belief He has an ambition to be a pilot. 注意2：由 only, last, next, 序数词和adj.最高级修饰的词常用不定式作定语。 此为出题点 He is the first to come and last to leave.,I came here to see you.To catch the first train, He got up very early. I rushed to the
13、 station, only to find the train already gone. (出人意料的结果,此为重要考点),(6) 状语（表示目的或结果）,Would you be so kind as to carry the luggage for me? The boy is too young to carry the heavy box. The food is good enough to eat.,注意：在一些搭配中也有体现 in order to , so as to ,enough to , too.to.,(7).独立结构,to be frank坦白的说 to put
14、it another way换句话说 to make things worse 更糟糕的是 needless to say 不用说,To tell the truth, I dont agree with you.,类似的结构,注意1：to have done 出题点,1. Sb +is +said/ reported/ considered/ thought/ believed to have done sth.He is said to have written a new book.2. It is an honor to have been invited to the party.,
15、注意2：主动表被动,1. rent, blame, let 习惯用主动表被动 The house is to rent/let. Who is to blame for the fire? 2. to do 做定语且句子中有动作执行者时 I have a lot of work to do. He want the letter to be typed right away. 3. adj.+to do 时English is difficult to learn. 4. There is no time to lose/ to be losed.(均可),注意2:句型,1. prefer to rather than do sth. 2. why not do sth. 3. sth. need to be done.=sth. needs doing 4. the key/answer to (doing) sth.介词,注意2:句型,5. adj.+to do Enlish is difficult to learn. 6. the way +to do 7. It remains to be seen whether you will succeed. 8. cant wait to do sth. 等不及做某事,
