2015 八年级下英语语法 ---动词不定式,动词短语

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初中英语常用动词不定式的短语归纳

初中英语常用动词不定式的短语归纳动词不定式是英语语法中的一种非谓语动词形式，它由动词原形加上不定式符号to构成。

在初中英语中，学生们经常会遇到一些常用的动词不定式短语。

本文将对这些常用的动词不定式短语进行归纳总结。

1. 动词不定式用作目的状语动词不定式可以用来表达某种行为的目的或者目标。

常见的动词不定式短语包括：- in order to + 不定式：为了做某事。

例：I study hard in order to pass the exam.（我努力学习以通过考试。

）- so as to + 不定式：为了做某事。

例：She arrived early so as to find a good seat.（她早早到来是为了找一个好位置。

）- for + 不定式：为了做某事。

例：He exercises every day for better health.（他每天锻炼是为了更好的健康。

）2. 动词不定式用作主语动词不定式可以用作句子的主语，表示某种行为或者状态。

常见的动词不定式短语包括：- to + 不定式：做某事。

例：To learn a foreign language is beneficial for personal development.（学习一门外语对个人发展是有益的。

）- for + 名词 + to + 不定式：做某事。

例：For children to play outdoors is essential for their physical and mental health.（儿童出门玩耍对他们的身心健康至关重要。

）- it + 视为 + 不定式 + that从句：某人认为/觉得…例：It is important to eat a balanced diet every day.（每天吃均衡的饮食很重要。

）3. 动词不定式用作宾语动词不定式可以用作动词的宾语，表示某种行为的完成或者主观愿望。

八年级英语下册语法考点【动词不定式】整理复习

八年级英语下册语法考点【动词不定式】整理复习作主语· To be a doctor is hard. 做医生很难。

· To learn English well is not easy. 学好英语不容易。

· To say is to believe.眼见为实。

动词不定式（短语）作主语时，为了避免句子的头重脚轻，可以用“it”作形式主语，而把真正的主语－－动词不定式（短语）放在句子的后部。

上面的句子可以改为：· Itis hard to be a doctor.· Itis not easy to learn English well.· It’simportant to plant trees in spring.如果动词不定式的动作是谁做的，可以在动词不定式前面加一个由介词for引导的短语，称为不定式的复合结构。

· It’s good for us to read English aloud in the morning.对我们来说每天早晨大声读英语是很有益的。

·It is important for students to use Engl ish every day.对学生来说每天使用英语是很重要的。

作表语在形式上，位于系动词后的就是表语。

从含义上讲，表语是回答主语“是什么”或“怎么样”的语法成分。

动词不定式（短语）作表语常用于系词be的后面。

· His work is to drive a car. 他的工作是开车。

· My job is to feed animals. 我的工作是饲养动物。

· Her ambition is to be a doctor. 她的理想是当医生。

作宾语动词不定式（短语）可以放在一些动词后面用作宾语，能以动词不定式作宾语的动词有：begin, start, want, forget, remember, show, learn, like, hate, love, ask等。

八年级英语动词不定式用法梳理

八年级英语动词不定式用法梳理动词不定式是由“不定式符号to+动词原形”构成的一种非谓语动词结构;有些动词不定式不带to,动词不定式可以作句子的主语、表语、宾语、定语、补语、状语或单独使用;不定式保留动词的某些特性,可以有自己的宾语、状语等;动词不定式和它后面的宾语、状语等一起构成短语,叫作不定式短语;一、用作主语多数情况用it作形式主语,把真正的主语——动词不定式置于句末,特别是不定式短语较长时;动词不定式作主语,谓语动词用第三人称单数形式;疑问词+不定式短语作主语可置于句首,复合不定式结构作主语常置于句末;如：1. I t is our duty to try our best to deal with these problems. head teacher said it was necessary to talk with his mother. to learn English well is important.see is to believe.眼见为实；百闻不如一见二、用作表语动词不定式作表语,常说明主语的内容、性质、特征;如： best way is to join an English club.first thing is to listen to the teacher carefully.三、用作宾语1.可以接带to的动词不定式作宾语的动词主要有：要求选择同意ask, choose, agree,期望决定学习expect, hope, decide, learn,宁可假装知道prefer, pretend, know,希望想要愿意wish, want, would like / love;如：1We decided to talk to some students about why they go there. 2He prefers to eat white bread and rice.3Id love to visit Mexico.2.动词decide, know, learn, show, teach, tell...,介词结构on...可用疑问词带to的不定式短语作宾语,但why后面的不定式不带to;如：1Could you please tell me where to park my car2It gives advice on what to do in lots of different situations.3.动词feel, find, make, think等后面,可以用it作形式宾语代替真正的宾语——动词不定式,句子结构是...feel / find / make / ... it+adj. / n.+to do...;如：4. 感知动词like, love, know等一般不用进行时态;5.后接动词不定式或ving形式作宾语,意思差别较大的动词有forget, remember等;后接不定式作宾语,表动作尚未发生；后接ving形式作宾语,表动作已经发生;stop to do停下来做另外一件事,to do是目的状语；stop doing停止做、不做当前这件事,doing 是宾语;try to do尽力做,try doing试试看；go on to do接着做另外的事,go on doing继续做原来的事;如：1When I left home, I forgot to bring it with me.2I stopped using them last year.四、用作定语1.句子的主语或宾语是动词不定式的逻辑主语,不定式与其所修饰的名词、代词等存在逻辑的动宾关系.1I have so many clothes to wash today.2I can’t think of any good advice to give her.3We have no houses to live in.2.动词不定式所修饰的名词是place, time, way等时,不定式与这些名词呈现出动状关系或同位关系;如：1He needs time to do homework.2 He wants to know the best way to travel around the city.3.在“there be...”句型里,句子的主语是动词不定式动作的对象：1There’s just so much to see and do here.2... but there are still many things to do the五、用作宾语补足语1.带to的动词不定式作宾语补足语的动词主要有：要求允许提议ask, allow, , advise,期望邀请鼓励expect, , invite, encourage,教导告诉想要teach, tell, want,等待希望愿意wait for, wish, would like / love;如：1Id invite her to have dinner at my house.2 We should allow the children to choose their own clothes.2.动词不定式作补语,在主动语态句里不带to,被动语态句里带to时多数动词是感官动词和使役动词,包括四“看”：look at, observe, see, watch,三“让”：have, let, make,二“听”：hear, listen to,一“感觉”：feel,一“注意”：notice;如：1This picture makes me feel excited2We saw Liu Yu play baseball last week.后接动词不定式作补语,to可带可不带;1 they can help you to learn English.2Using email English helps you write quickly.六、用作状语1.目的状语,置于句首或句末,置于句首时常表示强调;如：1In order to catch the early bus, she got up very early.2A group of young people got together to discuss this question.3She came to this city to visit her daughter.2.原因状语,多见于“sb.+be+adj.+to do...”结构句中;如：1 I feel very lucky to have him.2 he ran out of money to buy old bikes.3.结果状语,多见于“too...to”,“enough to...”结构句中;如：1 I’m too tired to do it well.2The room is big enough for three people to live in.七、动词不定式的复合结构动词不定式的复合结构是“for / of sb. to do sth.”,for / of引出不定式动作的逻辑主语;这种结构在句子中可以作主语、宾语、表语、定语、状语等;不定式复合结构的介词用for还是of,主要决定于前面形容词的性质;一般说来,of前面的形容词是careful, clever, foolish, good, kind, nice, wise等,既说明人的特性,又说明不定式动作的特性;for前面的形容词是dangerous, difficult, easy, hard, heavy, important, interesting, necessary等,一般说明不定式动作的特性,前面如果是名词用for;如：’s a good idea for parents to allow children to study in groups during the evening.’s wise of him to do it well.3Is it interesting for the baby to play with a pet dog 八、带疑问词的不定式短语动词不定式前面可以带疑问代词what, which, who或疑问副词how, when, where, why等;这种结构起名词的作用,在句子里用作宾语、主语、表语等,或者单独使用;要注意的是,why后面的不定式不带to;如：1.用作句子的成分;1I don’t know what to try next. 作宾语2Where to go is not decided yet.作主语2.单独使用时相当于一个特殊疑问句;1What to do next=What will we / you do next2Why go there=Why do we / you go there九、动词不定式的否定式不定式的否定式是not / never to do...,不带to的不定式的否定式是not / never do...如：decide not to talk to each other.parents tell him never to play soccer in the street.随堂练习一动词填空;’m going to l isten to the radio. Please ____not talkany more. 2. The students ____dotheir homework from four to five this afternoon.3. The students ____bebusy now. They ____havean English exam next Monday.4. Mary must ____lookafter her little sister because she is too young.5. ____heyou waiting for a bus now6. This coat is very cheap. I ____takeit now.7. I’ll tell him about it when he ____comeback.8. Could you tell me ____can getto No 3 Middle school.9. He ____ said that the new teacher ____givethe students an English lesson now.10. I ____milka cow three times.11. Edison’s mother ____teachhim herself.12. He ____watchTV once a week.13. Don’t speak loudly. The baby ____sleep.14. I won’t go out ____finishmy homework.15. Could you tell me when the train ____arrive.16. I often hear the sound of children ____readEnglish in the room.asked me ____helphim with his English this evening.18. Their work is ____cleanthe streets.19. Did he enjoy ____workin China.20. We will stay at home if it _____raintomorrow.21. Be quiet The boy ____singan English song.22. _____ you _____ your homework yetstart23. Who ____teachthem English last term.24. There _____bea telephone call for you just now.25. Please keep everything ____clean.26. Peter won’t have a rest until he ____finishhis work.27. I watched TV, so I ____forget_____domy homework.28. When I ____walkalong the river ,I met my friend,Tom.29. When Mother came ,the little girl ____playwith a cat.30. When I was five,I _ __ _getto know the earth ____movearound the sun.31. They _____seea boy _____fallinto the river while they ____passit yesterday.32. _____studyhard at your lessons andnot talkin class.33. You _____havebetter _____not eatthe bad food.34. While I ___do my homework,my parents __watchTV.35. He ____ not finish____readthe book.36. I ____getup very early this morning. I ____readEnglish now.37. He ____hurryto school every morning.38. Our teacher ____not stop____workuntil eleven o’clock last night.39. If he ____knowit ,he ____bevery happy.40. It ____takeus half an hour ____readEnglish every day.41. The children ____runin the street now.42. There ____betwo meetings tomorrow morning.43. My father ____sleepwhen I ____getup this morning.44. When I ____goto see Tom, he ____not writeanything.45. Sorry, when you ____callme, I ____thinkand ____not hearyou.46. Mr. Green ____leavehis notebook at home yesterday.47. I ____wantto buy a new coat next Sunday.48. His father ____readnewspaper when I got there.49. It ____befive years since he ____buythe motorbike.50. We found it was very difficult ____geta car.are so glad ________ hear the news.saw him ________ cross the road safely and ________ run away. can’t make him ________ do what you want.don’t know where ________ meet him.makes you ________ think I’m a farmeryou see him ________ go upstairsis better ________ put your money in a bank.is difficult for the boy ________ swim across the river.let him ________ go early as he wanted ________ meet his uncle at the station.you help me ________ move the bedhe doesn’t know, how ________ use the recorder, you’d better ________ show him.is the last one ________ leave the office every day.’s bad manners ________ shout in public.boy is old enough ________ dress himself.is too ill ________ go to school.二选择题1. Tell him ___ the window.A. to close notB. not to closeC. to not closeD. not close2. Paul doesn't have to be made ___. He always works hard.A. learnB. to learnC. learnedD. learning3. You'd better _______the story in Japanese.A. sayB. speakC. tellD. talk4. The patient was warned ___ oily food after the operation.A. to eat notB. eating notC. not to eatD. not eating5. ---- I usually go there by train.---- Why not ___ by boat for a changeA. to try goingB. trying to goC. to try and goD. try going6. There are some books on the floor, would you like ________A. to pick them upB. to pick up themC. pick it upD. pick up it7. She is very ill, let's _______a doctor at once.A. to wake upB. send forC. to pay forD. pay for8. I want ________a teacher when I grow up.A. to beB. toC. beD. being9. It's cold here. You'd better ______ your coat.A. not take outB. not to take downC. not take offD. not to take away10. My mother told me ________more water.A. drinkingB. drankC. to drinkD. drink。

英语语法总结--动词不定式

Thebookisbelievedtobeuninteresting. 人们认为这本书没什么意思。4) therebe+不定式believe,expect,intend,like,love,mean,prefer,want,wish,undrstand
Wedidn'texpecttheretobesomanypeoplethere.我们没料到会有那么多人在哪里。注意：有些动词需用as短语做补语，如regard,thinkbelieve,take,consider. WeregardTomasourbestteacher. 我们认为汤姆是我们最好的老师。 Marytookhimasherfather. 玛丽把他当作自己的父亲。
9省to的动词不定式
1）情态动词(除ought外，oughtto)：2）使役动词let,have,make：3）感官动词see,watch,lookat,notice,observe,hear,listento,smell,feel,find等后作宾补，省略to。注意：在被动语态中则to不能省掉。 Isawhimdance. =Hewasseentodance. Thebossmadethemworkthewholenight. =Theyweremadetoworkthewholenight.4）wouldrather，hadbetter：5）Why…/whynot…：6）help可带to，也可不带to,helpsb(to)dosth：7）but和except：but前是动词do时，后面出现的动词用不带to的动词不定式。8）由and,or和than连接的两个不定式，第二个to可以省去：9）通常在discover,imagine,suppose,think,understand等词后，可以省去tobe： Heissupposed(tobe)nice. 他应该是个好人。举例： HewantstomovetoFranceandmarrythegirl.Hewantstodonothingbutgoout.比较： Hewantstodonothingbutgoout. Hewantstobelieveanythingbuttotakethemedicine.典型例题1)----Iusuallygotherebytrain. ----Whynot___byboatforachange? A.totrygoing B. tryingtogo C. totryandgo D. trygoing 答案：D.whynot后面接不带to的不定式，因此选D。2）Pauldoesn'thavetobemade___.Healwaysworkshard. A.learn B.tolearn C.learned D.learning 答案：B.make后接不带to的动词不定式，当其用于被动时，to不可省略。

初二英语动词不定式讲解包含口诀

初二英语动词不定式讲解动词不定式的基本形式是“to+动词原形“, 有时可以不带to.动词不定式没有人称和数的变化, 在句子中不能作谓语。

在句中可以作主语、表语、宾语、宾语补足语、定语和状语。

一、作主语，可以用it代替，it叫形式主语，动词不定式放在后面叫真正主语1．To learn a foreign language is not easy. It is not easy to learn a foreign language.2. It’s dangerous to drive very fast.二、如果宾语太长，可用it作形式宾语，构成“主语+ 谓语+ it + 宾语不足语(名词或形容词) + to do sth”结构，谓语动词常为find、think、feel等。

I found it difficult to stop him. 我发现拦截他很困难。

三、常可接动词不定式作宾语的动词有：agree(同意), hope(希望), decide(决定), need(需要), mean(打算), wish(希望), fail(失败),want(想要), begin(开始), would like(想要等。

Ask(请求）, beg（乞求), leave, like, love, hate(讨厌）, prefer（宁愿）, order（命令）, teach, （教）tell,（告诉）believe（相信）, find,（找出）know,（知道）want,（想要）think,（认为）understand,（明白）后面跟动词不定式的动词口诀有：三个希望两答应（wish hope want promis agree)两个要求莫拒绝（ask beg refuse )想要明白跟知道（would like understand know )教会告诉要相信（teach tell believe )找出爱恨区别点（find love hate )He has decided to go to the countryside. 他已决心去乡下。

英语语法-动词不定式课件

d. saw
forget/remember doing sth.
stop/go on to do sth
stop/go on doing sth
The scientist stopped __ to me though he was
busy.
√
a. talking
b. to talk
c. to have talk
It’s +adj+of sb+to do sth. Eg:你能邀请我，你真是太善良了。 It’s very kind of you to invit me. 若形容词是描述人的性格、品质的，如 kind，good，nice，right，wrong，clever， careless，polite，foolish等，用of sb. Eg:你真聪明，解出了这道数学题。 It’s clever of you to work out the maths problem.
1. It takes you ten minutes to get there. 主语
2. I hope to see him soon.
宾语
3. His wish is to become an artist.
表语
4. People eat to live, but not live to eat. 状语
I wish to go with you.
need to do learn to do agree to do
plan to do decide to do refuse to do
begin to do start to do
try to do
forget to do remember to do like to do

八年级下册部分英语动词不定式、动词原形、动词ing、todoing等

八年级下册部分英语动词不定式、动词原形、动词ing、todoing等动词不定式、动词原形、动词ing、to doing等want sb. (not) to do sth.想要（某人）去做某事need to do sth.需要做某事love/like to do sth.喜欢/喜爱做某事（短时）tell/ask sb. (not) to do sth.告诉/要求(请)某人（不要）做某事I t’s time to do sth./for sth. 是时候做某事了forget/remember to do sth. 忘记/记得做某事（未做）would like to do sth.愿意做某事decide to do sth.决定做某事try to do sth.努力做某事give sb. to do sth.给某人做某事can’t wait to do sth.迫不及待做某事be free to do sth.随心所欲做某事be sure to do sth.确信做某事make sure to do sth.一定要做某事plan to do sth.计划干某事It’s adj (for sb.) to do sth.（对某人来说）干某事怎么样hope (sb.) to do sth.希望（某人）干某事expect to do sth.期待干某事help sb. (to) do sth.帮助某人干某事begin/start to do/doing sth.开始做某事①be able to do sth.能够做某事be afraid to do sth.害怕做某事/be afraid of sth.害怕某物be a good time to do sth.是一个很好的时间去做某事be ready to do sth.准备好做某事take one’s place to do sth.代替某人做某事be glad to do sth.开心干某事promise to do sth.承诺干某事advise sb. to do sth.建议某人干某事use sth. to do sth.使用某物做某事(dis)agree to do sth.(不)同意做某事too adj./adv. to do sth.（too+形容词/副词+to+动词原形）太…而不能be going to do将要做某事let sb. do sth让某人做某事make sb. do sth使某人做某事watch sb. do sth看某人做了某事enjoy doing sth.喜欢做某事like doing sth.喜欢做某事（长久）have fun doing sth.感到做某事很有乐趣thanks sb.(thank you) for doing sth.为（某人）做某事而感谢how/what about doing sth.如何做某事spend …doing sth.花费…做某事stop doing/to do sth.停止做某事②be good at doing sth.擅长做某事watch sb. doing sth.看到某人正在做某事be interested in doing sth.对某事感兴趣feel like doing sth.想要做某事forget/remember doing sth.忘记/记得做过某事（已做）find sb. doing/do sth.发现某人在做某事③ke ep (on) doing sth.继续做某事by doing sth.通过做某事practic(e)/se doing sth.练习做某事play a role doing sth.在…取得作用be good for doing sth.对做某事有帮助such as doing sth.例如做某事finish doing sth.完成/结束做某事mind sth./ doing sth.介意做某事without doing sth.没有做某事be busy doing sth.忙于做某事miss doing sth.错过做某事look forward to doing sth.期待干某事fall to doing sth 开始做某事。

初二英语动词不定式知识点

初二英语动词不定式知识点初二英语动词不定式有动词特征和非动词特征，英语动词不定式的特征在汉语句式中得到充分体现。

以下是店铺给你推荐的初二英语动词不定式知识点归纳，希望对你有帮助!动词不定式知识点：不定式结构作主语1、Te get contact with his family in Taiwan made him extremely happy since they separated more than 40 years ago.2、To finish that task in such a short time is really a challenge.在上述情况下，如果不定式较长，显得头重脚轻，则可由代词让作形式主语(形式主语it不可由that或this等其他代词代替)，而将不定式放到后面。

如：1、It made him extremely happy to get contact with his family in Taiwan since they separated more than 40 years ago.2、John admitted that it is always difficult for him to be on time.不定式结构所表示的动作是谁做的，即不定式的逻辑主语，通常可以通过for sb. to do sth. 结构表达：1、It is quite important for us to read good books during a general review.2、It is not difficult fot those talented students to pass the exam.在某些形容词(如careless，clever，considerate，foolish，good，impolite，kind，naughty，nice，silly，stupid等)作表语时，不定式后可以加of来引导出其逻辑主语：1、It is very kind of you to tell me the truth.2、It is stupid of him to do such a silly thing.动词不定式知识点：不定式作宾语不定式作宾语不定式作宾语有两种：一种是及物动词后直接跟带to的不定式，另一种是“及物动词+疑问词+带to的不定式。

初中英语常用动词不定式的短语归纳

初中英语常用动词不定式的短语归纳初中英语常用动词不定式的短语归纳动词不定式是学习英语的难点之一，也是构成长句的一个重要因素。

不定式有自己的宾语、状语和补足语，组成不定式短语。

在分析句子时要把不定式短语看作一个整体。

不定式在句中可作主语、表语、宾语、定语、状语和补足语。

以下是店铺精心整理的初中英语常用动词不定式的短语归纳，欢迎大家借鉴与参考，希望对大家有所帮助。

初中英语常用动词不定式的短语归纳篇11、Its time to do sth. Its time for sth. 该做某事了2、cant wait to do sth. 迫不及待要做某事3、ask /tell sb. (not ) to do sth. 要求/告诉某人(不)做某事4、allow sb. to do sth. 允许某人做某事5、be supposed to do sth. 应该做某事6、would like /want (sb.) to do sth. 想要做某事7、have sth/nothing to do 有事要做/无事可做8、find it +adj. to do sth. 发觉做某事9、prefer to do sth. rather than do sth. 宁愿做某事,而不愿做某事10、Its +adj. for/of sb. to do sth. 做某事对某人来说11、It takes sb to do sth 花费做某事12、remember to do13、forget to do14、decide(not) to do15、stop to do16、begin/start to do17、promise to do 许诺18、agree to do19、hope/wish to do20、wish sb to do21、try(not) to do22、refuse to do 拒绝23、warn sb (not) to do 警告24、offer to do 提议25、have to do26、plan(not) to do27、learn to do28、need to do初中英语常用动词不定式的短语归纳篇2对于英语的学习中，关于动词不定式的形式知识点的内容，我们做下面的讲解学习哦。

初中英语人教新目标八年级下册 Unit 2复习(知识点+动词不定式+动词短语)

八年级英语下册Unit2复习一、知识点【Section A】P91.clean up “打扫（或清除）干净”.eg: I often clean up my room on weekends.2.cheer up“使变得高兴，振奋起来”（动副词组）eg:Let's sing a song for her to cheer her up.（cheer让她高兴起来）3.give out=hand out“分发；散发”（动副词组）eg:Can you give the books out,please?（give分发这些书）4.volunteer to do sth自愿做某事（volunteer也可作名词，“志愿者”）P101.put off“推迟”（动副词组）eg:①You shouldn‘t put off doing your homework.②You should do your homework now,you shouldn't put it off.2.notice sb do sth 注意到某人做了某事notice sb doing sth 注意到某人正在做某事（notice 作名词讲“通知，通告，布告”）e up with=think up 想出；提出（主意、计划、回答等）eg:Can you think up/come up with a good idea?4.help out with...帮着做某事help sb out 帮某人摆脱困境ed to do sth过去常常做某事eg:I used to get up late,but now I am used to getting up early. 我过去常常起得晚，但现在我习惯了早起。

*used to否定为didn't use to/usedn't to.eg:I didn't use to get up late./I usedn't to get up late.6.lonely adj.“孤独的；寂寞的”，也可表示“偏僻的；人迹罕至的”. eg:①Tom feels/is lonely.Tom感到孤独。

人教版英语八年级下册【语法全解】：动词不定式

【语法全解】：动词不定式（1）动词不定式的构成：to+动词原形（do），有时可以不带to，没有人称和数的变化。

（2）动词不定式的否定形式：not+ to do，不需要借助于助动词来完成。

（3）功能：动词不定式是一种非谓语动词形式，在句中可以充当宾语、宾语补足语、状语以及主语、表语、定语等。

①作宾语，动词不定式可以用在一些及物动词之后作宾语。

如try，remember，hope等。

We hope to leave at once.我们希望马上离开。

He’ll try not to be late again.他将设法不再迟到。

巧记接动词不定式作宾语的动词三个希望（hope，wish，expect）两需要（want，need），设法（try）同意（agree）作准备（prepare）。

开始（start，begin）计划（plan）莫忘记（forget），记着（remember）决定（decide）能学会（learn）。

②作宾语补足语。

1）在ask, tell, want, would like, order等动词（短语）后接宾语补足语，必须带to。

The doctor told him to drink more water.医生告诉他要多喝水。

2）在使役动词make, let, have和感官动词see, hear, watch, feel等后，不带to(但变为被动语态时不定式要带to)。

The boss made them work the whole night.老板迫使他们工作了一整夜。

记牢宾补不带to，一感、二听要仔细。

三让四看记心间，半个帮助最相宜。

（一感：feel；二听：hear，listen to；三让：let，make，have；四看：see，watch，look at，notice；半个帮助：help，可带to也可不带）③作状语，表示目的、原因、结果等。

We are working hard to make a better life.我们努力工作目的是使我们的生活更美好。

八年级下册英语第8讲 Unit 5 —— 动词不定式(基础讲解)

八年级下册第8讲Unit 5 ——动词不定式【概念引入】1. 动词不定式名言：（1）动词不定式作表语To lose is to learn. 失败就是学习。

（2）动词不定式作主语It is better to give than to take. 给予比接受更好。

（3）不定式作宾语Expect to be treated as you have treated others.你怎样待别人，就指望别人怎样待你。

（4）不定式作宾补Adversity causes some men to break，others to break records.逆境使一些人崩溃，也使一些人破记录。

（5）不定式作定语There is a time to talk and a time to act.该说的时候说，该做的时候做。

（6）不定式作目的状语To find the exact answer，one must first ask the exact question.要找到确切的答案，首先必须提出确切的问题。

2. 动词不定式定义：动词不定式是一种非谓语形式（不能作谓语），基本形式是to do形式(to是不定式符号的标志，无意义，可以不翻译)肯定式：to + 动词原形否定式：not to + 动词原形【用法讲解】1.动词不定式的特征动词不定动式是一种非谓语动词形式，它没有人称和数的变化，在句子中不能作谓语，但可以作除谓语之外的其它任何句子成分（主语、表语、宾语、宾语补足语、定语和状语）；动词不定式具有名词、形容词和副词的特征，同时还保持动词的某些特点，既可以有自己的宾语和状语，动词不定式和它的宾语和状语构成不定式短语。

2. 动词不定式在句子中的作用动词不定式是由to+动词原形构成，在句中起名词，形容词和副词的作用，可以担任除谓语以外的其它任何成分。

（1）动词不定式作主语。

例如：To master a language is not an easy thing.掌握一门语言不是一件容易的事情。

仁爱英语八年级下册Unit6语法--动词不定式

I come here to say goodbye to you.
We went to the park to see the snakes. I must study hard to catch up with others.
BACK
五、表
表语：用在系动词之后。
语
Eg: The most important thing is to save the boy.
My hobby is to collect stamps.
BACK
六、目的状语
目的状语： to do 表示前一个动作的目的 Eg: He ran so fast to catch the first bus.
Eg: You can ask Tom to speak slowly.
动词 sb. do sth. 这样的动词有 see、 hear、 make、 let
Eg: My parents don‘t let me swim in the river. help sb. (to) do sth. Eg: I can help mum (to) clean the room.
非谓语动词

---动词不定式
动词不定式的概念
动词不定式是非谓语动词的一种。所谓的非谓语动词就是不作谓语，没有人称和数的变化的动词。不定式是由”to + 动词原形“构成。to 只是不定式的一个符号，没有任何实际意义。
动词不定式
一、宾语
二、宾语补足语
三、主语
四、定语
定主状宾表补
五、表语
Eg: Liu Mei wants to ask the teacher a question.

八年级语法：动词不定式

八年级语法：动词不定式动词不定式1概念引入1. 动词不定式名言：（1）动词不定式作表语To lose is to learn. 失败就是学习。

（2）动词不定式作主语It is better to give than to take. 给予比接受更好。

（3）不定式作宾语Expect to be treated as you have treated others.你怎样待别人，就指望别人怎样待你。

（4）不定式作宾补Adversity causes some men to break，others to break records.逆境使一些人崩溃，也使一些人破记录。

（5）不定式作定语There is a time to talk and a time to act.该说的时候说，该做的时候做。

（6）不定式作目的状语To find the exact answer，one must first ask the exact question.要找到确切的答案，首先必须提出确切的问题。

2. 动词不定式定义：动词不定式是一种非谓语形式（不能作谓语），基本形式是to do 形式(to是不定式符号的标志，无意义，可以不翻译)肯定式：to + 动词原形否定式：not to + 动词原形2用法讲解1.动词不定式的特征动词不定动式是一种非谓语动词形式，它没有人称和数的变化，在句子中不能作谓语，但可以作除谓语之外的其它任何句子成分（主语、表语、宾语、宾语补足语、定语和状语）；动词不定式具有名词、形容词和副词的特征，同时还保持动词的某些特点，既可以有自己的宾语和状语，动词不定式和它的宾语和状语构成不定式短语。

2. 动词不定式在句子中的作用动词不定式是由to+动词原形构成，在句中起名词，形容词和副词的作用，可以担任除谓语以外的其它任何成分。

（1）动词不定式作主语。

例如：To master a language is not an easy thing.掌握一门语言不是一件容易的事情。

英语语法：动词不定式

It’s a great honour to be invited to the party.
不定式用主动式还是被动式
Have you got a key __________the door? to unlock (unlock)
I know what _______. (do) to do
He needs a room ________. (live in) to live in I have got a letter _________. (write) to write He is not a man _______________by to be frightened a wolf. (frighten)
To tell the truth, I don’t agree with you.
类似的结构
•to be frank, •to be honest,
(8)不定式与疑问词who,which, when, how, what等连用，在句中起名词作用，可充当主语、表语、宾语等。 He didn’t know what to say.他不知道说什么。 (宾语) How to solve the problem is very important. 如何解决这个问题很重要。(主语) My question is when to start.我的问题是什么时候开始。(表语) 注意： •在与why连用时，只用于why或why not开头的简短疑问句中，后面紧跟的动词不定式不带to。
所修饰的名词是have, give, get, buy, lend, want等动词的宾语，且句子中有名词或代词作动词不定式的逻辑主语时，用主动形式。例如： I'm busy. I have a lot of work to do. He gave me a book to read while I was waiting for a bus.

八年级英语动词不定式复习

动词不定式复习语法复习：动词不定式动词不定式(to do)是初中英语课的一个重点，也是中考要考查的一个项目。

动词不定式属于非谓语动词的一种形式，很多同学经常把它和谓语动词混在一起，掌握起来有困难。

下面我们对动词不定式的用法做简单归纳，帮助同学们记忆：一、动词不定式在句子中不能充当谓语，没有人称和数的变化。

二、动词不定式是由“to+动词原形”构成(有时可以不带to)。

动词不定式的否定形式是“not+动词不定式”(not不与助动词连用)。

三、动词不定式短语具有名词、形容词和副词等的功能，可在句中用做多种句子成分。

1、主语：常置于句末，而用it代替其做形式主语。

To go in for sports helps you stay fit.It is dangerous to swim in the deep sea on your own.注：此句式中不定式逻辑上的主语可由for或of引出，逻辑主语由of引出时，表语的形容词为kind, nice, good, polite, clever, foolish, right, wrong等表示评价的形容词。

例：It’s right of him to refuse the invitation. (him为逻辑主语)2、表语：Our duty is to protect the environment.3、动词宾语：此种情况可按固定搭配或句式去记。

例：Would you like to see my photos?Kevin planned to visit his uncle.和plan用法一样的词还有：start, want, agree, hope, begin, decide等。

I found it very difficult to get a job. (it为形式宾语)4、宾语补足语：(1) 在多数复合宾语及物动词后要带to。

例：I asked a friend to read it to me. (book4，L2)(2) 在表示感觉、致使等意义的动词(see, watch, hear, feel, notice, observe, make, let, have, help等) 后不带to。