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1、最新资料推荐非谓语动词讲解非谓语动词: a.动词不定式 b. v-ing c. 过去分词概述：1.谓语动词：在句子中担任谓语的动词2.非谓语动词：是动词的特殊形式,在句中可以作除谓语外的所有成分非谓语动词使用条件一个句子当中，已经存在一个主句（谓语动词）,又没有连词的情况下, 还有别的动词出现时。She got off the bus, leaving her handbag on her seat.She got off the bus, but left her handbag on her seat.动词不定式一动词不定式的时态和被动形式动词不定式是非谓语动词的一种，由不定式符号(to)
2、加动词原形构成。不定式的形式有五种：1.一般式to do I like to read English.2.进行式to be doing He seemed to be reading something at that time.3.完成式to have done He seemed to have cleaned the room.4.被动式to be done The work is to be done soon.5.完成被动式to have been doneThe boy is said to have been sent to hospital yesterday.疑问词+动词不
3、定式What, who, which, where, when, how, why等疑问词构成不定式短语，这种短语在句子中可作主语、宾语和表语等成分。二. 动词不定式的用法I.作主语 (1)不定式做主语时，可以直接放在谓语动词之前。To see is to believe Not to get there in time is your fault.(2)注：常用it做形式主语，将to do位于之后，使句子保持平衡。句型1：It + 谓语 +(+sb.)+时间/金钱+ to do It takes us an hour _to_ get there by bus. It costs you o
4、nly $ 100 a month to cook at home.It seemed impossible to save money.句型2：Its + n. (+ for sb) + to do Its our duty _to_ help the poor.It is a great enjoyment _to_ spend our holiday in the countryside. It is a great honor for us to be present at your birthday party.句型3： It is + adj （+ for sb） to do st
5、h（是形容事物的性质的 ）It is + adj （+ of sb） to do sth（是形容人的品质的 ）It is easy for me to finish this work before ten. It is very kind of you to give me some help.Its impolite of you to speak to the teacher like that.疑问词+不定式 作主语When to start remains undecided.1. It is easy to get there by bus or taxi.2. It takes
6、about 3 hours to see all the birds.3. It is also impolite to speak with your mouth full when you are eating.4. Its our duty to take good care of the old.5. How long did it take you to finish the work?6. It is stupid of you to write down everything the teacher says.7. When to start has not been decid
7、ed.8. It seemed selfish of him not to give them anything.9. Its necessary for you to lock the car when you do not use it.10. It is useful for our health to do morning exercises.II.作宾语 接不定式做宾语I want to know this matter.I dont expect to meet you here(1)常见动词有：like, demand, expect, promise, begin, deter
8、mine, refuse, fail, manage, learn, seem, forget, want, prepare, pretend, plan, wish等They want to get_( get ) on the bus, didnt they? He said he wished _to be ( be ) a professor.(2)it作形式宾语I find/feel to work with him interesting I find/feel it interesting to work with himSubject+ find/think/feel/make
9、/ consider it+adj/n + to do sth. 1.Wethought_it_better_to_startearly.2.Doyouconsider_it_betternot_to_go?3.Ifeel_it_myduty_to_changeallthat. 4.We think it _ important _ to _ obey the law.5.I know _ it _ impossible _ to _ finish so much homework in a day.(3)疑问词+不定式 作宾语常常放在这些动词的后面作宾语：tell, advise, show
10、, teach, find out, decide, discuss, learn, explainHe taught us how to use the tool. No one could tell me where to get the book.The dictionary didnt tell the Frenchman how to pronounce the word.(4) 作介词but, except, besides的宾语。Cant choose but doCant help but do/have no choice to doDo nothing but doPrac
11、tice: 1. Would you like to go to Thailand? (would like to do sth.)2. The driver failed to see the other car in time. 3. I think it our duty to obey the laws.4. Do you know how to play football?5. I found it difficult to see him here.6. Here are some ideas about how to find cheap, fun things to do wi
12、th your family on weekends.7. Many people like to go to a restaurant.8. I havent decided whether to go or stay. 9. Everyone wants to have a happy weekend.10. She hope Ill advise her which to choose.III.作宾语补足语1. Illgetsomeone_to_repairtherecorderforyou. 2. Whatcausedhim_to_changehismind? v.+ sb.+ to
13、doadvise, allow, ask, beg, cause, expect, encourage, force, get, hate, invite , order, wish, want, warn, remind, promise, permit, persuade, request+ sb. to do注意：（1）在动词feel （一感），hear, listen to（二听），have, let, make（三使），notice, see, watch, observe, look at（五看）(即：吾看三室两厅一感觉)等后面的补足语中，不定式不带to，但变为被动语态后，必须带t
14、o。v.+ sb.+ do Lets go to Thailand right now. （let sb. do sth.）They saw the boy fall off the tree. (see sb. do sth.) The boy was seen to fall off the tree.He is often heard to sing (sing) the song.Though he often made his deskmate cry (cry).Today he was made to cry(cry) by his deskmate. (make sb. do
15、sth.)(2)help后面作宾语补足语的不定式可以带to,也可以不带to. I often help him（to）clean the room. help sb. (to) do sth.I helped him (to) find his things. 比较：The professor told the students how to do the experiment .The professor told the students to do the experiment.Practice: 1. No one lets you sit in the office.2. I want you to know some rules.3. I heard her sing today. She sang wonderful.4. We watched the children play games.5. Do you feel
