高考英语语法复习课件-不定式专题复习.ppt

动词不定式,To do that sort of thing is foolish。,I want to see you this evening.,All you have to do is to finish it quickly.,We found a house to live in.,She came here to study English.,I warned the patient not to drink cold water after the operation.,主语,宾语,表语,定语,状语,宾补,不定式或不定式短语可起名词，形容词和副词的作用，在句中做主语，宾语，表语，定语，状语和宾语补足语。 一，不定式在句中的作用： 1、主语：不定式做主语时，可以直接放在谓语动词之前。 eg: To make a new dress takes her a lot of time. Not to get there in time is your fault. 注：常用it做形式主语，将to do放在位于之后，使句子保持平衡。,句型1：It + 谓语 + to do eg: It takes us an hour to get there by bus. 句型2：Its + n. + to do eg: Its our duty to help the poor. 句型3：It is adj. for/of sb. to do sth. 注：for/of sb to do sth 为不定式复合结构。 1) of引起的复合结构只能做主语。 eg: Its very kind of you to help me.,2) for引起的复合结构在句中可做主语，宾语，表语，定语，状语等。 eg: Another method is for them to leave at once. (表语) Wed better find some work for the children to do. (定语) He put the paper on desk for you to read. (状语) What he told her made it impossible for him to go on her work. (宾语) Its common for leaves to fall from the trees in autumn. (主语),2、做表语：主语+系动词+不定式 1). 其主语多为抽象名词(wish, need) eg: My wish is to be a scientist. The main thing is to keep our room clean. 2). 不定式to blame做表语,主动表被动. eg: He is to blame. 3). be to do可构成将来时态,表 “准备/打算/计划/需要”; be是助动词，无词义,其主语为具体名词(人/事物); to be可用be going to或will/shall代替,此时不定式是谓语的一部分,而不是表语. eg: She is to return next week. He was about to leave when it started to rain.,3. 做定语: 不定式做定语总是放在它所修饰的名词之后,不定式表示的行为通常是未来的行为,它们常和被修饰的词有动宾关系,主谓关系和修饰性关系. 1). 动宾关系: I have a lot of work to do. Give me a piece of paper to write on. 2). 主谓关系: She is the best person to finish the work. Women and children were the first to get into the lifeboat. 3). 修饰性关系(同位),它所修饰的词多为抽象名词. need, time, way, right, chance, courage, reason, wish, movement. eg: There is no need for him to come. He has no time to read the book.,4. 做状语: 1). 目的状语: 可放于句首,也可放于句末, 前面可加in order/so as/soas to表强调. eg: He went to see the artist himself. He stopped to have a look. He ran so fast as to get to school in time. 2). 结果状语:主要用在enough to/tooto/only to结构中。 eg: The question is too difficult to answer. They worked hard enough to finish their work.,3). 原因状语: 主语+系动词+adj.+ to do a). 表感情的adj.有: happy, surprised, pleased, glad, sorry, anxious(忧虑), disappointed, careful, afraid, wrong. eg: Im very happy to see you. He was afraid to leave him home. b). 说明句中主语在哪个方面存在形容词所表示的情况时,即与句中主语构成逻辑上的动宾关系，主动表被动. interesting, difficult, easy, important, possible, expensive, dangerous, useful. eg: The question is easy to answer. He is difficult to teach.,5. 做宾语: 不定式做宾语的情况，一般表示将来的行为,这时谓语和不定式的动作都是主语发出的. 1). 下列动词只能加不定式做宾语. . plan, choose, manage, learn, pretend, agree, decide, refuse. promise, prepare, offer, fail, hope, wish, expect, ask;demand, want, hesitate,2). 不定式做动词tell, teach, know, show, find out, discover, see(understand)的宾语时,不定式前常加连接代词who, which, what和连接副词how, when, where构成不定式短语做宾语. eg: I dont know how to get there. 注: why不能与不定式连用. 3). begin, start, continue 后接不定式,动名词意思一样. 4). like, love, hate, prefer动名词表经常性的动作，不定式表一次性动作.,5). remember, forget, regret后动名词表已经做过的动作,不定式表没有做过或将要做的动作. 6). stop, try, go on, mean, be afraid, propose 后两者都可, 但意义不同. propose to do计划,打算做 propose doing 建议做 7). a). prefer doing to doing prefer to do rather than do b). its no use doing its useless to do c). be worth doing be worthy of being done be worthy to be done,6. 做宾补(与宾语之间的关系实际上是逻辑上的主谓关系) 1). 有些动词(短语)必须接to的不定式做宾补 talk, ask, warn, want, allow, permit, order, advise, force, beg, cause, encourage, invite, persuade, get, require, prefer, call, leave, expect, use(allow/permit/advise doing sth),四, 不定式的时态和语态 时态: 三态 to do/ to be doing/ to have done 一般式表示的动作通常与句中谓语动作同时或在其后发生 eg: We saw him go to the shop. 进行式表示不定式的动作正在进行. eg: He pretended to be working hard. 完成式表示不定式动作在谓语动作/状态前发生. Im glad to have seen your mother. eg: I happened to have read the book.,动词不定式To 的几种常见的省略形式,非谓语动词历来是高考中的重点，不定式结构在考点中常占很大比重。其中TO的用法很复杂，现就TO在一些结构中常被省略的情况作如下小结。 1感官动词和使役动词在主动语态中不需要带to，即我们常说的“一觉二听三让五看”：feel, listen to 、hear ,let、make、have, see、watch、notice、observe、look at. He noticed Tom take a branch of flowers in his hand. 他注意到汤姆手中拿着一束鲜花。 The teacher has us write a composition every week. 老师要我们每周写一篇文章。 注： 除let 外其他在变成被动语态时要加上to。 The person was seen to enter the shop by us . 我们看见那个人进了那家商店。,2当主句中存在do 动词的任何形式， 介词but 后就省去to, 而只接do(只是do动词，不能是其他行为动词) 其结构为can not do but（do)，can not help but (do)不得不等句型， eg. She can do nothing but/except sing. 她除了唱歌什么也没做。 There is nothing he could do but play all day long。他除了整天玩，别无它事可做。 I couldnt do anything but sleep I did nothing but wait He had nothing to do but cry. I had no choice but to sleep,3不定式做help后的宾语补足语或宾语时，可带to也可不带。 Can I help（to） carry it for you? 我可以帮你搬吗？ I helped him（to） mend the bike. 我帮助他修理自行车。 4在had better，would rather，rather than之后省略to。 Youd better not tell him the news . 你最好不把这个消息告诉他。 Rather than wait anyone, I decided to go home by taxi. 我决定乘出租车回家而不愿等候任何人。,学习动词不定式时要特别注意以下几点： 一、后接不定式的动词 1.后接不定式做宾语的动词hope, agree, dare, decide, determinebegin, start, refuse, prepare,offermanage,try, aim, forget, remember ，chooseseem, pretend, learn, love, hate等。 (可记：希望同意敢决定，开始拒绝备提供，设法瞄准忘记选，似乎假装学爱憎。) 2.后接不定式作宾补的动词 permit,request,allow,command,tell,invite,cause,encouragewarn,adivse,persuadeforce,order,remind,teach等。 (可记首字母：practice wap fort 实践攻克堡垒。) 3.后接不定式既作宾语又可作宾补的动词 ask,beg,like,preter,help,promise,wish,want,expect等。 （可记：请求、愿、助、诺、希望。）,二、不定式省略to的现象： 1.在had better,would rather, why not,do nothing but,would ratherthan以及情态动词后。如： Tom would rather play tennis than swim. I could do nothing but wait for you. 2.在see,hear,watch,notice,feel,observe,let,make,have等感官动词和使役动词后接不带to的不定式作宾补，但当这些动词为被动时其后的不定式必须带to.如： He saw two men enter the room. I was made to do it 三、不定式的否定式 否定不定式时，否定副词not或never,seldom,hardly等要置于to前。如:She checked the names so as not to make mistakes.,The purpose of new technologies is to make life easier _ it more difficult. (MET99) A. not make B. not to make C. not making D. do not make 2. Ive worked with children before, so I know what _ in my new job. (NMET2000) A. expected B. to expect C. to be expecting D. expects,高考题汇集：,3. Charles Babbage is generally considered _the first computer. (MET1998),to invent B. inventing C. to have invented C. having invented,4. Allen had to call a taxi because the box was _ to carry all the way home. (MET2003),much too heavy B. too much heavy C. heavy too much D. too heavy much,5. The boy wanted to ride his bicycle in the street, but his mother told him _. (NMET95),A. not to B. not to do C. not do it D. do not to,6. Little Jim should love _ to the theatre this evening. (MET 97),to be taken B. to take C. being taken D. taking,7.There are five pairs _,but Im at a loss which to buy.(1999上海高考),to be chosen B. to choose from C. to choose D. for choosing,8. _late in the afternoon, Bob turned off the alarm. (2001年北京春季高考),A. To sleep B. Sleeping C. Sleep D. Having sleep,9. With a lot of difficult problems _,the newly-elected president is having a hard time. (2002年上海春季高考),settled B. settling C.to settle D. being settled,10. She will tell us why she feels so strongly that each of us has a role_in making the earth a better place to live. (2003上海春季高考),A.to have played B. to play C. to be played D. to be playing,11. In order to gain a bigger share in the international market, many state run companies are trying _their products more competitive. ( 2002上海春季高考),to make B. making C. to have made D.having made,12. The teacher asked us_so much noise. (2003北京春季高考),A.dont make B. not make,C. not making D. not to make,7. Wet umbrellas are not allowed into this hotel according to the rule. A. to be taken B. to take C. taken D. taking,8. Robert is said _ abroad, but I didnt know what country he studied in. A to have studied B to study C to be studying D to have been studying,9. In Australia he made a lot of friends _a very practical knowledge of English. get B. getting C. to get D. got,EXERCISES 1.You had better _ your hair cut. A. had B. have C to get D to have 2 We _ put the meeting off for a week. A can as well B. will as well C. shall as well D . may as well 3 He _ live in the country than in the city. A prefers B likes to C had better D. would rather 4 The boy told his father that he would rather _ an astronaut. A. become B. to become C becoming D became,5 Paul doesnt have to be made _. He always works hard. A. learn B. to learn C. learned D. learning 6 - I usually go there by train. - Why not _ by boat for a change? A. to try going B. trying to go C. to try and go D. try going 7 He wants to do nothing but out. to go go going goes 8 He wants to believe anything but_ the medicine. A to take B take C take D takes,9 Compared with women. men always prefer _ at home rather than _ so much time shopping . A to finish ,to spend B to finish ,spend C finish ,spend D finish ,to spend,巩固性练习 1. She cant help _ the house because shes busy making a cake. A. to clean B. cleaning C. to be cleaning D. being cleaned 2 While shopping, people sometimes cant help _ into buying something they dont really need. A. to persuade B. to be persuaded C .persuading D. being persuading 3 We agreed _ here, but so far she hasnt turned up yet. A. having met B. meeting C. to meet D. to have met,4 - You were brave enough to raise the objections at the meeting. - Well, now I regret _ that. A. to do B. to doing C. to have done D. having done 5 Little Tom should love _ to the theatre this evening. A .to be taken B. to take C. being taken D. taking,6 Ive got a terrible headache. I tried _ some medicine, but it didnt help. A. to take B. having taken C. taking D. to have taken 7 - Would you join us tonight ? - I _, but I have to prepare for tomorrows test. A . would love so B. would love to C. would love it D. would love 8 I would love _ to the party last night, but I had to finish extra hours to finish a report. A .to go B. to have gone C. going D. having gone,9 he let me repeat his instructions _ sure that I understood what was _ after he went away. A .to make, to be done B. making, doing C. to make, to do D. making, to do 10 - You should have thanked her before you left. - I meant _, but when I was leaving, I couldnt find her anywhere. A . to do B. to C. doing D. doing so 11 In some parts of London, missing a bus means _ for another hour. A . waiting B. to wait C. wait D. to be waiting,12 With a lot of difficult problems _, the newly- elected president is having a hard time. A. settled B. steeling C. to settle D. being settled 13. Do let your mother know all the truth. She appears _ everything. A. to tell B. to be told C .to be telling D. to have been told,14.To fetch water before breakfast seemed to be a rule _. A. to never break B. never to be broken C. never to have broken D. never to be breaking 15. The purpose of new technologies is to make life easier, but _ it more difficult. A. not make B. not to make C. not making D. do not make,练习：1. Sarah, hurry up. Im afraid you wouldnt have time to _ before the party. (NMET2004全国卷I) A. get changed B. get change C. get changing D. get to change 2. My advisor encouraged _ a summer course to improve my writing skills. (NMET 2004 北京) A. for me taking B. me taking C. for me to take D. me to take 3. I dont know whether you happen _, but Im going to study in the USA this September. (NMET 2004 辽宁) A. to be heard B. to be hearing C. to hear D. to have heard 4. The final examination is coming up soon. Its time for us to _ our studies. (NMET 2004 辽宁) A. get down to B. get out C. get back for D. get over,5. The flu is believed _ by viruses that like to reproduce in the cells inside the human nose and throat. (NMET 2004 上海) A. causing B. being caused C. to be caused D. to have caused 6. The news reporters hurried to the airport, only _ the film stars had left. (NMET 2004 福建) A. to tell B. to be told C. telling D. told 7. It seems that he has no pen _. (NMET 2003 北京 春) A. to write B. to write with C. writing D. writing with 8. She will tell us why she feels so strongly that each of us has a role_ in making the earth a better place to live. (NMET 2003 上海 春) A. to have played B. to play C. to be played D. to be playing,9. The teacher asked us _ so much noise. (NMET 2003 北京) A. dont make B. not make C. not making D. not to make 10. The patient was warned _ oily food after the operation. (NMET 1996) A. to eat not B. eating not C. not to eat D. not eating 11. We agree _ here but so far she hasnt turned up yet. (NMET 1995) A. having met B. meeting C. to meet D. to have met 12. Hurry up, he is sure _ for us. (NMET 1995) A. to wait B. to be waiting C. waiting D. being waited,13. At the shopping-centre, he didnt know what _ and _ with an empty bag. A. to buy; leave B. to be bought; left C. to buy; left D. was to buy; leave 14. She made a candle _us light. A. give B. gave C. to give D. given 15. Where should I send my form? The Personnel Office is the place _. A. for sending it B. to send it to C. to send D. to send it 16. Its necessary _ some English grammar. A. for us students to learn B. for we students to learn C. of us students to learn D. for our students learning,17. _ kind to the enemy is _ cruel to the people. A. Be; be B. To be; to be C. To be; being D. Being; to be 18. No matter how busy he is, he _ at least 15 minutes a day. A. makes a rule read B. makes a rule reading C. makes it a rule read D. makes it a rule to read 19. If Mary doesnt come to work on time, she may be fired. Surely she is