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1、精品资料欢迎下载非谓语动词动词不定式动词不定式由“ to+动词原形 ” 构成。其 主动式有一般式、进行时、完成式和完成进行式。其被动式、进行式和完成式。如下表:时态 语态 主动 被动一般式 to do to be done 完成式 to have done to have been done 动词不定式主动式的句法功能1、动词不定式作主语当动词不定式作主语时,其谓语动词常用单数。例如:To say something is one thing; to do it is another. 说是一回事,做是另一回事。To help animals is helping people.( 帮助动物就
2、是帮助人)/ It is very difficult (for us) to learn Chinese well.(对于我们而言 )学好汉语是非常的困难)/ It took me half an hour to work out this problem.(解出这道题花了我一个小时的时间) 当动词不定式在句子中作主语时,通常使用it 作形式主语而真正主语则是不定式或不定式短语,以使句子保持平衡。例如:Its so nice to hear your voice. 听到你的声音真高兴。It is not difficult to work out the problem.弄清这个节目的情况并
3、不困难。Its very kind of you to help us.他帮助我们,他真好。Its for sb.和 Its of sb. 这样的句子中, 由于表语形容词性质的不同,导致了不定式逻辑主语标志用for 或 of 的区别。1) for sb. 句型中的形容词一般为表示事物的特征特点,表示客观形式的形容词,如 easy, hard, difficult, interesting, impossible等:例如:Its very hard for him to study two languages. 对他来说学两门外语是很难的。2)of sb 句型中的形容词一般为表示性格,品德,心智
4、能力,表示主观感情或态度的形容词如 good, kind, nice, clever, foolish, right 。例如:Its very nice of you to help me. 你来帮助我,你真是太好了。2、动词不定式作表语不定式可放在be 动词后面,形成表语。例如:My work is to clean the room every day. 我的工作是每天清扫房间。His dream is to be a doctor. 他的梦想是成为一名医生。3、动词不定式作宾语1)及物动词ask, agree,beg,care,choose,decide, expect,force,fa
5、il ,hesitate,claim ,hope,learn,long, manage,offer ,pretend, plan,prepare,promise,refuse,want,wish等要求动词不定式作宾语。例如:We want to learn some body language.我们想学习一点身势语。She has decided to go to Guangzhou tomorrow.她已经决定明天去广州。No one can afford to buy such an expensive suit. 没有人能担负起买如此昂贵的服装。4、动词不定式作宾语补足语有的动词后接带t
6、o 的动词不定式作补语;有的动词后接不带to 的动词不定式。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页,共 7 页精品资料欢迎下载1)能以带 to 的不定式作宾补的动词有:ask,allow, get,warn,tell,invite,force, oblige,beg, wish ,want, like, hate, expect, encourage, advise, persuade,permit, request,order, cause, know, call on 等。例如:Would you like me to help
7、 you? 你要我帮忙吗?Father will not allow us to play on the street. 2)用不带 to 的不定式作宾补的动词有see ,hear,watch,notice,observe,listen to ,look at,feel,let,have,make 等。但是,这类句子变为被动语态时,不定式符号to 仍保留。例如:I saw him dance. 我看见他跳舞。 =He was seen to dance. The boss made them work the whole night. 老板让他们整夜干活。=They were made to
8、work the whole night. 5、动词不定式与疑问词、介词的连用(1)decide,find out, forget,know,learn,remember,wonder 等动词常接 “ 疑问词 + 动词不定式 ” 这个结构,用作宾语。疑问词一般是what,who(m) ,where,how,whether,why,which 。例如:Would you teach us how to drive a car? 你愿意教我们如何开车吗?Let me tell you what to do now. 让我来告诉你现在该做什么。当宾语是不定式(短语 )时,如果其后有宾语补足语,则须用
9、it 作形式宾语,而把真正的宾语放在补语之后, 即: “ 主语 +谓语+ it + 宾补不定式(短语)” 。 常见的谓语动词有think, make, feel, find, etc. 例如:I dont think it is necessary to buy a bigger computer. 我认为没有必要买那个大功能的计算机。He found it important to study the situation in Russian.他发现研究俄国形势非常重要。6、动词不定式作定语不定式做定语通常要放在被修饰的词后,往往表示未发生的动作。例如:I have a lot of wor
10、k to do.我有许多事要做。There was nothing to bring home that morning. 那天早上(他回家时)两手空空。7、动词不定式作状语不定式通常在句子里可作目的、条件、原因和结果状语。1) 目的状语常用结构为to do , only to do (仅仅为了) , in order to do,so as to do,so(such) as to (如此 以便 ) 。例如: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 yo
11、u.我来仅仅是向你告别。2)作结果状语,可以表示没有预料到的或事与愿违的结果,不定式要放在句子后面。I awoke to find my truck gone. 我醒来发现箱子不见了。He searched the room only to find nothing. 他搜索了房间,没发现什么。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 2 页,共 7 页精品资料欢迎下载3) 表原因Im glad to see you. 见到你很高兴。She wept to see the sight. 她一看到这情形就哭了。4)表示理由和条件He must
12、be a fool to say so.他可定是傻子才这样说。You will do well to speak more carefully.如果你仔细说,你会做得更好。不定式的省略形式1) 情态动词( 除 ought 外)后。2) 使役动词let, have, make 后,感官动词see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后。注意:被动语态中不能省去to。例如:I saw him dance. 我看见他跳舞。=He was seen to dance. The boss made
13、them work the whole night. 老板让他们整夜干活。=They were made to work the whole night. 3) would rather, had better句型后4) Why / why no句型后5) help 后可带 to,也可不带to, help sb (to) do sth:6) but 和 except 后。 but 前是实义动词do 时,后面出现的不定式不带to。比较: He wants to do nothing but go out. 他只想出去玩。He wants to believe anything but to ta
14、ke the medicine. 除了吃这药,他什么都信。7) 由 and, or 和 than 连接的两个不定式,第二个to 可以省去:8) 通常在 discover, imagine, suppose, think 等词后作宾补时,可以省去to be。例如:He is supposed (to be) nice.他应该是个好人。动名词1、动名词作主语1) 动名词作主语与不定式作主语的区别。一般地说,动名词表示抽象的、一般的行为,尤其是强调多次性的动作;不定式表示具体的、某一次的动作,特别是将来的动作。例如:Checking information is very important.核实情
15、况是非常重要的。Learning a foreign language is very useful to me. 学习一门外语,来说是非常重要的。2、动名词作宾语1) 有些动词只能用动名词作直接宾语,不能用不定式作直接宾语。如:admit, advise,avoid, consider,delay,finish , mind, miss, permit, practise, enjoy, resist,risk,精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 3 页,共 7 页精品资料欢迎下载appreciate, imagine, 例如:He
16、finished reading the book yesterday.他昨天看完这本书。Have you considered looking for one special friend? 你是否考虑过找一位特别亲密的朋友呢?2)动名词作介词宾语的用法。be used to, prevent.from, depend on,feel like , be fond of, be proud of , put off , give up, devote oneself to ,help yourself to , be busy in,be afraid of, apologize for 等
17、。例如:I dont feel like walking very much today.今天我不想走太多的路。The Great Green will stop the wind from blowing the earth away.绿色长城将阻止风刮走土。注意:动名词前的介词有时可以省略。如:have difficulty (in) doing ; have no trouble (in) doing; lose no time (in) doing; prevent/stop.(from) doing; there is no use (in) doing等。例如:I have som
18、e difficult in pronouncing some of the words in English.我发某些英语单词的音有一些困难。The heavy rain kept them from going out. 大雨阻止了他们外出。We must stop them (from) making the same mistake again. 我们必须防止犯同样的错误。3)有些动词即可用动名词作直接宾语,也可以用不定式作直接宾语,两者有着截然不同的意义。(1)like,love,prefer,hate.等表示喜爱、厌恶、偏好的情感动词,后跟不定式表示“ 仅一时的爱憎情感或指特定或具
19、体某次行为” ;后跟动名词表示“ 抽象性的一种倾向、爱好或习惯性的动作 ” 例如:I dont like to read this novel. 我不喜欢看这本小说。I dont like reading in bed.我不喜欢在床上看书。I prefer to work rather than sit idle. 我情愿工作而不愿闲坐着。注意:这几个词前面有would, should 时,后面都只跟不定式。例如:Would you like to dine out? 你愿意在外面吃顿饭吗?(2)动词 remember, forget,stop,go on,try, regret,cant h
20、elp 等既能以动词不定式又能以动名词作宾语,但表达的意思却不同。与动词不定式连用时,表示未完成的动作。例如:remember 后用动名词表示“ 记起过去做过的一件事” ; 后用动词不定式表示“ 记住要去做某一件事情 ” 。例如:Remember to go to the post office after school. 记着放学后去趟邮局。Dont you remember seeing the man before? 你不记得以前见过那个人吗? forget 后用动词不定式表示. “忘记要去做某件事情” ;后用动名词表示“ 忘记过去做过的一件事情 ” 。例如:The light in t
21、he office is still on. He forgot to turn it off. 办公室的灯还在亮着,他忘记关了。 (没有做关灯的动作)He forgot turning the light off. 他忘记他已经关了灯了。(已做过关灯的动作)stop 后用动词不定式表示“ 停下来做另一件事情” (停下来的目的) ;后用动名词表示“ 停止正精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页,共 7 页精品资料欢迎下载在做的事情 ” 。例如:They stop to smoke a cigarette.他们停下来,抽了根烟。I m
22、ust stop smoking.我必须戒烟了。go on doing sth 表示 “ 继续不停地做某事” 或“ 一件事没有做完,停顿后继续做下去;与原来所做的事相同。” 例如:After he had finished his maths ,he went on to do his physics. 做完数学后,他接着去做物理。 Go on doing the other exercise after you have finished this one. 作完这个练习后,接着做其他的练习 try 用动词不定式表示“ 设法去做某件事情” ;后用动名词表示“ 试一试某种办法” 。例如:You
23、 must try to be more careful. 你可要多加小心。I tried gardening but didnt succeed. 我试着种果木花卉,但未成功。mean 后用动词不定式表示“ 打算、想要做某事” ;后用动名词表示“ 意味着、意思是” 。例如:I meant to tell you yesterday ,but you were not in your office.我打算昨天告诉你,但是你不在办公室。Missing the train means waiting for an hour错过这趟火车就意味着还要等一个小时。cant help 后用动词不定式表示“
24、 不能帮助做 .”。后用动名词表示“ 禁不住 .;不得不 ” 。例如:He couldnt help finishing it. 他不得不把这件事完成。We couldnt help to finish it. 我们不能帮助完成这件事。be afraid doing/to do be afraid to do不敢,胆怯去做某事,是主观上的原因不去做,意为怕,be afraid of doing担心出现doing 的状况、结果。doing 是客观上造成的,意为生怕,恐怕 。例如:She was afraid to wake her husband. 她不敢去叫醒她丈夫。She was afrai
25、d of waking her husband. 她生怕吵醒她丈夫。learn 后跟不定式表示“ 学会了做某事” 或“ 学着做某事 ” ;跟动名词表示“ 学过做某事 ” ,但不一定会了。例如:He has learned to type.他学会了打字。 (指会使用打字机)He has learned typing. 他学过打字。 (他不一定会使用打字机)4)动词 need, want, require,以及be worth 之后动名词的主动语态含有被动的意思,相当于不定式的被动语态。例如:His clothes need mending(to be mended).他的衣服需要缝补。Our t
26、eacher said that the way of study needed improving. 老师说我们的这种学习方法需要改进。These babies will require taking good care of. 这些婴儿需要细心照料。His talk is well worth listening to。精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 5 页,共 7 页精品资料欢迎下载提高型 1. I have a lot of things _ this weekend.(1999上海 ) A. do B. did C. do
27、ing D. to do 2. You d better _ upstairs and tell the children_ make so much noise. A. go; not to B. go; dontC. to go; not to D. to go; dont3. Lily likes _ the clothes of light colour.(1999甘肃 ) A. to put on B. putting C. to dress D. wearing 4. It s too late. Why _ now?(1999 新疆 ) A. not to go B. not g
28、oing C. not go D. don t go5. Please don t forget _ to me, will you?(1998重庆 ) A. to write B. writing C. write 6. When I m tired, I enjoy _ music.(1999云南 ) A. listening B. listening to C. to hear D. hearing the 7. Linda was very sorry for being late. But the teacher s smile made her _ better.A. feel B
29、. to feel C. fall D. to fall 8. I heard Mother _ with Father in the next room at ten last night. (1998重庆 ) A. talk B. talking C. to talk D. is talking 9. The Great Green Wall will stop the wind from _ the earth away. (1998辽宁 ) A. blow B. to blow C. blowing D. blew 10. Did the teacher tell you _ this
30、 afternoon?(1998河北 ) -Yes. We ll go to visit the Science Museum. A. to go where B. how to do C. what to do D. to do what 11. We are not sure _.(1998广东 ) A. when to leave B. when leave C. when leaves 12. Meimei went _ Kate with her Chinese.(1997天津 ) A. help B. to help C. helped D. helping 13. _ is ba
31、d for our health.(1997 河南 ) A. Doing eye exercises B. Go to bed early C. Eating too much D. Taking a walk 14. Wu Dong is good at _ English.(1997 吉林 ) A. speak B. speaks C. speaking D. spoke 15. The old woman was _ tired _ go any farther.( 四川 ) A. too; to B. go; as C. very; to 16. Would you please _
32、drop your shoes on the floor at night? A. not to B. not C. don t D. won t17. Most of the children enjoy _ computer games. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 6 页,共 7 页精品资料欢迎下载A. play B. playing C. played D. to play 18.She should do her homework now. But she doesn t feel like _ it. A. does
33、 B. do C. doing D. to do 19.Uncle Wang can make his kite _ higher in the sky. A. fly B. flies C. to fly D. flying 20.You d better _ the cinema by bus.A. don t go B. to go C. to go to D. go to 21. Her wish is _ a famous singer. A. become B. became C. becomes D. to become 22. Our monitor is always rea
34、dy _ others. A. help B. helps C. to help D. helping 23. Have you decided _ for your holidays? A. go where B. where to go C. to go where D. where go 24. Would you please _ me a chair _? A. give; to sit on B. give; to sit C. giving; sit D. to give; sit on 25. There id no difference between the two wor
35、ds. I really don t know _.A. what to choose B. which to choose C. to choose which D. to choose what 26. Though he had often made his sister _, today he was made _ by his sister. A. cry; crying B. crying; crying C. cry; to cry D . to cry; cry 27. Why are you going shopping if you don t _?-My wife wan
36、ts _ with her. A. want to; I go B. want; me going C. want to; me to go D. want; to go 28. We are often told _ people in trouble. A. to smiling B. not to smile C. to laugh D. not to laugh at 29. You look so tired. Why not _ a rest? A. stop having B. to stop have C. stop to have D. to stop to have 30. What a fine day! How about _ out for a walk? A. go B. to go C. gone D. Going 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 7 页,共 7 页