1、The infinitive动词不定式动词不定式 to do not to do语法复习语法复习-动词不定式动词不定式动词不定式动词不定式want planwould like hope expect prefer decidetoI We have a lot of homework _(do).We have many books _(read).We dont have enough time _(relax)ourselves.to do to relaxWe have lots of things to do every day.to readMy dream is to动词不定式动
2、词不定式 定义定义构成构成 用法用法 动词不定式是非谓语动词的一种，动词不定式是非谓语动词的一种，它它没有没有_和和_的变化，在的变化，在句子中句子中不能不能独立独立作作_，但，但具具有名词、形容词和副词等的功能，有名词、形容词和副词等的功能，可在句中用做多种可在句中用做多种_。一、定义一、定义人称人称 数数谓语谓语句子成分句子成分1.She asked me to come on time.2.My mother asked me not to swim in that river.3.He told Lily to sit down.4.The teacher told the stude
3、nts not to make noise.肯定：肯定：否定：否定：二、二、构成构成to+V原原not to+V原原主语（主语（Subject）宾语（宾语（Object）宾补（宾补（Object complement）定语（定语（Attributive）状语（状语（Adverbial）表语（表语（Predicative）与疑问词连用（与疑问词连用（interrogative）三、三、用法用法To grow trees is very important.It is very important to grow trees.不定式作主语时不定式作主语时,往往放在谓语往往放在谓语之后之后,用用it
4、作形式主语。作形式主语。你那样做是有礼貌的你那样做是有礼貌的。It is polite of you to do that.学英语对我们来说是重要的学英语对我们来说是重要的。It is important for us to learn English.do sth.good,kind,nice,rude,clever,right,silly,brave,selfish easy,hard,difficult,important,possible,necessary描述人的性格、品质的形容词描述人的性格、品质的形容词描述事物特征的形容词描述事物特征的形容词用用of用用for1.对我们来说，努力
5、学习是必要的。对我们来说，努力学习是必要的。2.你那样做很有礼貌。你那样做很有礼貌。Its necessary for us to study hard.Its very polite of you to do that.难点突破难点突破:1)I want to buy a computer.2)She hopes to find a better job.3)I wish to go with you.你还学过哪些可以接不定式作宾语的动你还学过哪些可以接不定式作宾语的动词？词？2.2.作宾语作宾语 (v.+to do)(v.+to do)想做某事想做某事愿意做某事愿意做某事希望做某事希望做某
6、事决定做某事决定做某事需要做某事需要做某事同意做某事同意做某事计划做某事计划做某事学会做某事学会做某事主动提出做某事主动提出做某事want to dowould like to dohope to do/wish to dodecide to doneed to doagree to doplan to dolearn to dooffer to doPractice1.I _(希望收到希望收到来信来信)you soon.2.John _ (不想放弃不想放弃)his study.3.Millions of people_(已学会使用已学会使用)computers.hope to hear fr
7、omdoesnt want to give up have learned to use有些词既可接动词不定式又可有些词既可接动词不定式又可接动名词，但含义不同，你接动名词，但含义不同，你认识它们吗？认识它们吗？注意注意1：含义不同：含义不同：remember to do sth.记得要做某事记得要做某事 remember doing sth.记得做过某事记得做过某事 forget to do sth.忘记要做某事忘记要做某事 forget doing sth.忘记曾经做过某事忘记曾经做过某事 stop to do sth.停下来去做某事停下来去做某事 stop doing sth.停止做某事
8、停止做某事 go on to do sth.继续做另一件事继续做另一件事 go on doing sth.继续做原来在做的事继续做原来在做的事 need to do sth.需要做某事需要做某事 need doing sth.需要被做需要被做 try to do sth.尽力去做某事尽力去做某事 try doing sth.尝试去做某事尝试去做某事难点突破：难点突破：1.别忘了离开时把灯关了。别忘了离开时把灯关了。Dont forget _before leaving.2.父亲必须戒烟了。父亲必须戒烟了。Father must stop_.3.他看完电视后，继续看了一会书。他看完电视后，继续看
9、了一会书。After he watched TV,he went on_ books for a while.to turn off the lightssmokingto readsb.think/find+it+adj.+to do 注意注意2 2 She finds it necessary to talk to him again.I think it important to learn English.不定式作宾语时，如带有宾语不定式作宾语时，如带有宾语补足语，则用补足语，则用it作形式宾语作形式宾语 难点突破：难点突破：1.他认为学好电脑是有用的。他认为学好电脑是有用的。2.我发
10、现要让她停止哭是很难的。我发现要让她停止哭是很难的。He thinks _.I found _it useful to learn computer wellit difficult to make her stop crying.3.3.She asked me to watch TV.Lucy told him not to cry.此类动词还有哪些？此类动词还有哪些？想要某人做想要某人做 希望某人做希望某人做允许某人做允许某人做 建议某人做建议某人做鼓励某人做鼓励某人做 帮助某人做帮助某人做喜欢某人做喜欢某人做want sb.to dowish/hope sb.to doallow sb
11、.to doadvise sb.to doencourage sb.to dohelp sb.(to)dowould like sb.to do常考难点：常考难点：1）Let me do it.2）I saw him cross the street.上述动词接不定式省略了上述动词接不定式省略了_？to作宾语补足语不带作宾语补足语不带to 的情况：的情况：常见动词有：常见动词有：?1.使役动词使役动词:let,make,have2.感官动词感官动词:see,watch,notice，hear,feel如：老板让工人们整天都工作。如：老板让工人们整天都工作。The boss made the w
12、orkers_all day.但这些词在被动语态里要还原但这些词在被动语态里要还原to如：如：I saw him play football yesterday.He was seen _football yesterday.workto play昨天我看见他踢足球。昨天我看见他踢足球。比较：比较：1）I heard her sing in the next room.2）I heard her singing in the next room.感官动词后既可跟不带感官动词后既可跟不带to的不定式的不定式 作宾补，也可跟动名词作宾补，前作宾补，也可跟动名词作宾补，前者表示动作的全部过程已结束；
13、后者表示动作的全部过程已结束；后者表示动作正在进行。者表示动作正在进行。以上两句有什么不同？以上两句有什么不同？1.John was made the car for a week as a punishment A.to wash B.washing C.wash 2.I heard her at 8:00 yesterday.A.sing B.singing C.sang 3.You mustnt let him too much TV.A.watch B.to watch C.watchingACA难点突破难点突破:1)I went there in order to see my te
14、acher.2)The boy was too frightened to move.(目的目的)(结果结果)（原因）（原因）3)Im sorry to trouble you.常考：常考：in order to/too to4.4.1 She ran fast _(为为了赶上了赶上)the first bus.2、I was_(太累了，难于入睡。太累了，难于入睡。)难点突破：难点突破：in order to catchtoo tired to fall asleep1)Have you get anything to say?2)Hes looking for a room to live
15、in?不定式作定语，如果不定式的动不定式作定语，如果不定式的动词是不及物动词，词是不及物动词，则不定式中要则不定式中要有介词。如上例的有介词。如上例的2)5.5.作定语作定语His wish is to be a doctor.My job is to help the patient.不定式作表语常放在不定式作表语常放在_动词之后。动词之后。be6.6.作表语作表语 7.不定式与疑问词不定式与疑问词who,which,when,who,which,when,how,what,wherehow,what,where等连用，在句中起等连用，在句中起名词作用，可充当主语、表语、宾名词作用，可充当主
16、语、表语、宾语等。语等。在与在与whywhy连用时，后面紧跟的动词不定连用时，后面紧跟的动词不定式不带式不带toto。Why not have a rest?难点突破难点突破:1.He didnt know_.(说什么说什么)。2._ (如何保护环境如何保护环境)is very important.3.My question is_.(什么时候开始什么时候开始)。4.Please tell me_.(去哪儿去哪儿)5.I dont know _(买哪一个买哪一个)for youwhat to sayHow to protect the environment when to startwher
17、e to gowhich one to buy1.had better(not)do sth.2.Why not do sth.?3.It takes sb.some time to do sth.4.Its time to do sth.5.prefer doing to doing 6.prefer to do rather than do 7.would rather do sth.I am a student of Grade Nine.I have a lot of homework _(do)every day.I work hard_(get)good grades.In my
18、spare time,I usually listen to music _(relax)myself.But my mother always asks me _(not spend)much time listening to music.She wants me _(work)hard at my schoolwork all the time.I feel stressed out.My dream is _(be)an engineer.So I plan_(study)maths really hard.But its difficult _(learn)maths.I dont know how_(learn)it well.I will ask my teacher and classmates _(help)me.I believe “_(ask)well is _(know)much ”(善问懂得多善问懂得多).I will make my dream _(come)true.to do to get to relax not to spend to work to be to study to learn to learn to helpTo ask to know come
