新人教版八年级下册英语动词不定式详细讲解
人教八年级下册 Unit 2 动词不定式语法讲解
动词不定式定义:动词不定式是一种非谓语动词形式,在句中不能作谓语,没有人称和数的变化。
基本形式:to do ,有时to可以省略;否定形式:not to do动词不定式具有名词、形容词和副词的特征,因此可以在句中作主语、表语、宾语、宾语补足语、定语和状语等。
一、不定式作宾语【例句】1.Nobody knew why she agreed to help Ian.2. Susan wants to go to Beijing on vacation with her parents.【总结】动词不定式作宾语时,主要用在“主语+谓动v. + to do”的结构中。
后面可接不定式作宾语的动词有:want,decide,hope,learn,plan,agree等。
能接动词不定式作宾语的动词主要有:agree(同意), hope(希望), decide(决定), wish(希望), fail(失败), want(想要),would like(想要),ask(请求),choose(选择),等。
希望想要做决定(hope, wish, want, decide )学会同意和答应(learn, agree, promise )碰巧没能计划好(happen, fail, plan )拒绝提供再准备(refuse, offer, prepare )注意:存在差异的四对词组:1.forget to do sth sth/ forget doing sth2.stop to do sth/stop doing sth3.remember to do sth / remember doing sth4.go on to do sth/go on doing sth不定式作宾语的考点1:***【例句】I found it difficult to stop him. 我发现拦截他很困难。
作宾语的不定式若带有自己的补足语,则需用it作形式宾语,而真正的不定式宾语置于补足语之后构成“主语+ 谓动+ it + 宾语补足语(名词或形容词) + to do sth”结构,谓语动词常为find、think、make,believe,feel等。
英语人教版八年级下册动词不定式教学
非谓语动词——不定式一、教学目的:要求学生掌握不定式的概念,意义,用法二、教学重点:不定式的用法三、教学难点:不定式的用法,特别是作定语时的用法四、教方法:讲解法,启发法,讨论法,归纳总结法,练习巩固法五、教学器材:多媒体六、教学步骤:1、呈现以前的句子(1)My job is to teach children(2)I want something to eat(3)He hlep his mother do some housewor(4)He asked me to clean the table(5)It is easy to learn math(6)Nice to meet you(7)I am too moved to say a word2、介绍不定式的意义构成•3、不定式的用法动词不定式是非谓语动词的一种。
所谓非谓语动词就是不能做谓语,没有人称和数的变化。
不定式由“to+动词原形”构成。
To只是不定式的一个符号,没有实际意义。
另外,动词不定式具有动词的性质,可以带宾语和状语,不定式加上它的宾语和状语构成不定式短语。
而且不定式可以作除谓语以外的其他句子成分。
具体用法如下:•动词不定式作及物动词的宾语,常用的及物动词有:begin,want,hope,forget,remember,help,like,love,need,try,ask,learn,wish,agree,choose,start,plan,decide,refuse等•宾语补足语•.作Tell the children not to play on the road.•Would you like me to help you?•I often help my mother(to)do housework at home注:(1)作动词ask,tell,want,order,invite,wish,teach等的宾补时,动词不定式要带toI asked Jack to carry the box.(2).表示感官和使役的动词let,make,feel,hear,see,watch等的宾补时,动词不定式不带to.She let me borrow an English book.(3).作动词help的宾补时,动词不定式可带to,3.作主语•To smoke is a bad habit.•I t is hard to answer your question该句也可说成:To answer your question is hard.•注:(1)如果要说明动词不定式的动作是谁做的,可在不定式前面加一个for sb.做不定式的逻辑主语.•I t is important for us to learn computer.•I t is easy for you to work out this math problem.•).如果表语是kind,nice,right,wrong,good,clever,polite,careful,careless,foolish等描述行为者本身的性格、品质表示主观感情或态度的形容词时,则应在不定式前面加of sb.做逻辑主语.It is very kind of you to help me.•I t is foolish of you to give him so much money.•两种结构还有一个区别,在of sb.结构中,可用sb.直接做主语来改写句子.试比较:•I t is very kind of you to help me.•Y ou are kind to help me.•For sb.结构是不可以这(1)作目的状语4.作状语I come especially to see you.我专门来看你.•H e ran so fast to catch the first bus.他跑这么快是为了赶上第一趟车.•I come here only to say goodbye to you.•(2).作结果状语•S he was so excited to say a word.她太激动了以致说不出话来.•(3).作原因状语•S he wouldn’t be so silly to do that.她不会傻到做那件事的.•I’m glad to see you.• 5.作表语To work means to make a living工作意味着谋生.(2)主语是duty,hope,idea,job,plan,problem,purpose,thing,wish,dream,task,work等名词为中心的短语,或是以what引导的名词性从句,不定式短语对主语起补充说明的作用.•不定式可放在be动词后面,形成表语。
人教版2019-2020学年八年级下册英语Unit 2 单元语法知识梳理
一、动词不定式1.动词不定式的形式:动词不定式的基本形式是“to+动词原形”,使用时有时可以不带to。
动词不定式没有人称和数的变化,在句子中不能作谓语,但仍保留动词的特点,即可以有自己的宾语和状语。
动词不定式同它的宾语或状语构成动词不定式短语。
例句:He wants to sit down.他想坐下。
Let him have a rest.让他休息一下。
动词不定式的否定形式是在动词不定式前面加not。
例句:Tell him not to leave alone.告诉他不要一个人离开。
2.动词不定式的用法动词不定式具有名词、形容词和副词的特征,因此在句中可以作主语、表语、宾语、补足语、定语、状语等。
(1)不定式作主语一般位于句首,谓语动词用单数。
例句:To learn foreign languages is very useful.学外语很有用。
为了避免句子“头重脚轻”,往往用it代替不定式作形式主语,而将不定式放在后面作真正的主语。
例句:It's very useful to learn foreign languages.学外语很有用。
(2)不定式作表语例句:My work is to take care of the sick boy.我的工作是照顾那个生病的男孩。
(3)不定式作宾语有两种情况: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”。
例句:He promised to help me.他答应帮我。
He showed me how to use a computer.他给我演示怎样使用电脑。
(4)不定式作宾语补足语,常接不定式作宾语补足语的词有tell,ask,want,teach,allow,promise,order,advise,expect,wish,invite,encourage 等。
例句:They asked him to sing a pop song at the party.他们请他在宴会上唱一首流行歌曲。
英语人教版八年级下册动词不定式的用法
二、常见的 非谓形式 动词—ing形式
动词不定式(to do) 分词(现在分词和过去分词) 三、今天主要学习动词不定式的用法: 1、作主语(常用it代替),主要用于三种句式: 1)It is +adj.+for sb.+ to do sth. 2) It is +adj.+of +sb.+ to do sth.
动词不定式的用法
萧县永堌中学 王长峰
一、动词的分类
1、系动词be:主语+系动词+表语、、、(主系表)
2、实意动词(行为动词):只做谓语 主语 + 谓语 + (宾语)、、、(主谓宾) 3、情态动词:无人称和数的变化,后加动词原形,构成复合谓语 4 、助动词:有 be ,do/does, did等,本身无意义,只用来帮忙构成时 态 、 语态、否定句、疑问句等 由此可见,动词的作用就是用来构成谓语或者谓语的一部分,但如 果一个表示动作的词或者短语不作谓语,我们就要用动词的非谓形 式。
13. I have a lot of homework _________(do) every day. 14. The little boy likes _____________________( answer)
questions.
15. Would you like __________ (join) us? 16. Mr. Wang taught me ___________ (play) basketball.
I find it interesting to learn English.
3、作宾补
1)want, ask, tell等绝大部分动词后跟带to的不定式作宾补。
2020-2021学年人教版八年级下册英语期末总复习 动词不定式课件
It is polite of you to do that.
描述事物特征:easy, hard, difficult, important, necessary…
2. It is + adj. + for sb. to do sth.
意义不同
forget / remember /stop…
3.作宾语补足语
I tell him not to go there by bus.
常用动词不定式作宾语补足语的动词有: tell,ask,want,order,teach,invite, wish,help,get等
注:若后面跟两个并列的不定式的话,后面一个的to 可以省略。 I help my mum to do the dishes and clean the windows.
常用动词不定式作宾语的动词有:
want,hope,love,like,learn,prefer, decide,agree,stop,forget,begin, start,hate,remember,try等
hate/ like/love…
意义相似 V+ to do sth. V+ doing sth.
8. He stopped ___B____a look, but saw nothing.
A. having B. to have C. have D. had
Never too old to learn! (活到老,学到老!)
It is important for us to learn English.
2.作宾语 (o buy a computer. 2) She hopes to find a better job. 3) I wish to go with you.
最新人教版八年级下册英语考点动词不定式讲解及练习有答案)
动词不定式一、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。
人教八年级下册下册unit2动词不定式
人教八年级下册下册unit2动词不定式动词不定式动词不定式是一种非谓语形式,其结构为to +动词原形,其中to不是介词,而是动词不定式符号,动词不定式没有人称和数的变化。
动词不定式和其后面的名词等构成的不定时短语,在句子中可以做主语,表语,宾语,宾语补足语,状语等。
动词不定式的形式及性质(1)动词不定式的根本形式:to do(to 有时候可省略)(2)动词不定式变否认:not〔to〕do(3)动词不定式无人称变化(4)动词不定式任然保存动词特点,可以有自己的宾语和状语To speak at he meeting to read newspaper动词不定式的句法作用一.做主语动词不定式做主语,表示句子说的是什么〔指具体动作〕。
例:To answer the teacher’s questions is very difficult.To do my homework often takes me about two hours every day.由于动词不定式或动词不定式短语做主语放在句首太长,有头重脚轻之嫌,所以常常用人称代词it来代替它作主语,称为形式主语,而真正的主语〔动词不定式或动词不定式短语〕被放在句尾。
例:It often takes me about two hours to do my homework every day.It is good for us to do morning exercises every day.于是就出现了初中两个重要句型“it takes sb. time to do sth. 〞“it is+形容词+〔for /of sb.〕to do sth.〞例:It takes me half an hour to come to school.It is difficult for me to finish the homework on tome.二.动词不定式作表语动词不定式常在wish, hope, dream等后作表语。
八年级动词不定式的知识点
八年级动词不定式的知识点动词不定式是英语中的一种非限定性从句,可以作为名词、形容词和副词等成分。
在英语中,它有其特殊的结构和用法,同时也是英语语法中的重要知识点之一。
一、基本结构动词不定式一般由“to+动词原形”构成,例如:to go,to eat等等。
二、作为名词1. 动词不定式作主语动词不定式作为主语时,位于句首,后面跟随谓语动词,例如:To learn English well is very important.学好英语十分重要。
2. 动词不定式作宾语动词不定式作直接宾语时,常用于某些动词(如want, expect, agree, hope, promise等)的宾语从句中,例如:I want to see you tomorrow.明天我想见你。
三、作为形容词1. 动词不定式作定语动词不定式作定语时作为形容词,并修饰名词或代词,例如:I have a book to read.我有一本要读的书。
2. 动词不定式作表语动词不定式作表语时作为形容词,并与be动词连用,例如:His dream is to be a doctor.他的梦想是成为一名医生。
四、作为副词1. 目的状语动词不定式作目的状语表示主语动作的目的或者原因,位于谓语动词之后,例如:I went to the supermarket to buy some fruits.我去超市买水果了。
2. 结果状语动词不定式作结果状语表示主语动作的结果或者后果,位于谓语动词之后,例如:He talked too much to be heard.他说得太多,没人听得懂。
以上就是八年级动词不定式的知识点,掌握好这些知识点,能够更好地理解英语语法,提升自己的英语语言水平。
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。
英语人教版八年级下册动词不定式归纳
三、在表感觉的动词(感官动词)等后作宾语补足语的动词不定。
• 1、I saw her cross the street. 2、He looked at the children walk up the hill. 3、I watched the boy cross the road. • 4、I heard her play the piano. 5、I felt the floor move.
十、在why, why not后的不定式不带to
• (1)Why spend such a lot of money? • (2)Why not join us?
• (3)Why don't you smoke?
十一、在口语中,特别是在美国,祈使句中谓语动 词和构成谓语的不定式go后面的不定式往往省to
二、与情态动词连用构成复合谓语
• 1、I can speak English. • 2、May I come in? • 3、We must work,and above all we must believe in ourselves. 4、Could you do something for me? 5、He might be working in the office now. • 但与情态动词ought (to)连用时通常带to, 和 used (to)连用时必须带to
1、You may take a horse to the water ,but you can't make him drink. 2、I'll let him do it. • 3、Don't forget to have them come. 4、Bid him go home. • 5、Leave him go. 动词have通常不用于被动语态,make和bid可用于被动语态, let偶尔也可用于被动态,用作主语补足语的动词不定式通常带 to,但在make和let后有时可以不带to 1、John was made to wash the truck for a week as a punishment. 2、He was made (to) laugh. 3、The child was let (to) do it. •
人教版新八年级英语暑假讲义第09讲动词不定式作宾语-(学生版+解析)
第09讲动词不定式作宾语【基础知识】动词不定式作宾语(1)接不定式作宾语的动词(“动词+to do” 结构)常见的有:learn 学会 plan 计划 decide 决定try 尽力 choose 选择 agree 同意refuse 拒绝 pretend 假装 offer 主动would like / want 想要 expect 期望hope / wish 希望 promise 承诺afford 负担得起 prefer 喜欢help 帮助(help to do / help do) like 喜欢(like to do / doing)continue 继续(continue to do / doing)begin / start 开始(begin / start to do / doing)如:I would like to have a sandwich. 我想要吃一个三明治。
(2)动词不定式作宾语,置句末,前面用it指代不定式,it是形式宾语。
如:We found it difficult to understand what you said. 我们发现很难理解你所说的话。
(3)有的动词在不定式前可加上疑问词(who,what,which等)作宾语(即“动词+疑问词+to do” 结构),常见的有:show 表明、指示;know 知道;tell 告诉;teach 教;learn 学习;decide 决定。
如:Larry didn’t know how to tell her the bad news. 拉里不知道如何告诉她这个坏消息。
【考点剖析】例1.(2022·山东·莒南县教育科学研究与发展中心八年级期末)—Did you practice ________ English this morning?—Yes, but I forgot ________ the classroom.A.to speak; to clean B.speaking; to clean C.speaking; cleaning例2.(2022·广东·深圳市高级中学八年级期中)—Did you forget ________ off the light when you left the room just now?—No, I remember ________ that, Mum.A.to turn;to do B.turning;doing C.to turn;doing例3.(2022·广东·深圳市高级中学八年级期中)—Does your mother make you ________ housework every day?—No. In fact, I offer ________ the dishes every day.A.do; to do B.to do; to do C.do; doing例4.(2021·辽宁沈阳·八年级期末)Three teenagers ________ to do some voluntary work during the school holiday.A.kept B.offered C.thought D.practised【真题演练】5.(2022·四川广元·中考真题)The Great Wall is so famous that a large number of travellers wish ______ it.A.visit B.visiting C.to visit D.visited 6.(2022·天津·中考真题)The painting is really valuable to him. He will never agree ________ it.A.sell B.sells C.sold D.to sell 7.(2021·山东济南·中考真题)—Have you finished your book report yet?—No, I haven’t. I plan ________ it this weekend.A.write B.wrote C.writing D.to write 8.(2021·云南昆明·中考真题)It is necessary to learn ________ time and make good use of every minute.A.to manage B.managing C.to lose D.losing 9.(2021·重庆·中考真题)The villagers plan ________ a new bridge over the river.A.build B.building C.to build D.built【过关检测】10. Please remember ________ tomorrow morning.A.to wake up me B.waking up me C.to wake me up D.waking me up 11. The couple managed ________ the ship.A.to go on the board B.going onto boardC.going on board D.to go on board12.I found ________ interesting ________ the animals.A.that; to feed B.it; to feed C.this; feed D.it; feed 13.Don’t forget _________ your book here tomorrow.A.carrying B.getting C.to take D.to bring14.At present, the price of the houses in Urumqi ________ than before. I can afford ________ a large one.A.are cheaper; to buy B.is cheaper; buy C.are lower; buy D.is lower; to buy 15.(2021·广东·广州市白云区白云实验学校八年级阶段练习)As my mother is lookingforward to ________ from me, please remember ________ this letter on your way to the company. A.hearing;posting B.hear;to post C.hearing;to post D.hear;posting 16.(2022·北京大兴·八年级期末)—Do you plan ________ for a party this weekend? —Yes, we do.A.to prepare B.prepare C.preparing D.prepared 17.(2021·陕西·榆林市第一中学分校八年级期末)My mother expects ________ around the world.A.to go B.going C.goes D.went 18.(2021·内蒙古·阿荣旗教师培训中心八年级期末)—Laura, we decide ________ on a trip this afternoon. will you join us?—-I’m afraid not. I have a composition ________.A.to go; to write B.to go; writing C.going; to write D.going; writing 19.(2021·黑龙江·肇州县教师进修学校八年级期末)The child is afraid ________ the bridge because he is afraid ________ off it.A.to cross; to fall B.to cross; of fallingC.of crossing; of falling D.of crossing; to fall20.(2021·天津和平·八年级期末)As the manager of the company, Mr. Brown can’t expect ________a day without working.A.spent B.spending C.spend D.to spend 21.(2021·湖南·通道侗族自治县教育科学研究室八年级期末)I find it important ________ English in the morning.A.read B.reading C.to read22.(2022·安徽淮北·八年级期末)Would you like ________ his sister ________ your party? A.invite; to B.to invite; to C.to invite; for D.invite; to 23.(2021·上海浦东新·八年级期末)They agreed ________ another meeting in one week’s time.A.to hold B.holding C.held D.hold 24.(2022·广东·深圳实验学校中学部八年级期末)If you try ________ your dream, you had better ________ effective steps and work hard.A.realizing; take B.to realize; taking C.realizing; to take D.to realize; take二、用所给单词的正确形式填空25.(2022·北京市陈经纶中学分校八年级期中)Children often expect _____ (see) more Monkey King cartoons.26.(2022·山东·巨野县教学研究中心八年级期中)I find it hard _______ (finish) the work ina day.27.(2021·黑龙江·绥滨县教师进修学校八年级期末)My mother doesn’t allow me ________ (eat) junk food.28.(2021·黑龙江·绥滨县教师进修学校八年级期末)Don’t forget _______________ (see) my parents when you are in Beijing.29.(2021·黑龙江·肇州县教师进修学校八年级期末)The shirt was dirty, but he managed _________ (clean) it.30.(2021·黑龙江·肇州县教师进修学校八年级期末)Tom didn’t need _________ (buy) a big house.31.(2022·吉林·长春外国语学校八年级期末)He needs ________ (clean) his room right now. 32.(2021·全国·八年级期末)They volunteered ________ (care) for those homeless people. 33.(2020·甘肃省会宁县教学研究室八年级期末)Could you tell me how ____(use) the computer?34.(2018·浙江·温岭市新河中学八年级期末)I hope ________ (watch) the action movie one day.35.(2020·吉林·长春外国语学校八年级期末)Some students found it difficult________(pronounce) difficult words.36.(2019·山西阳泉·八年级期末)Of all the TV shows, my father expects _______________ (watch) the news.第09讲动词不定式作宾语【基础知识】动词不定式作宾语(1)接不定式作宾语的动词(“动词+to do” 结构)常见的有:learn 学会 plan 计划 decide 决定try 尽力 choose 选择 agree 同意refuse 拒绝 pretend 假装 offer 主动would like / want 想要 expect 期望hope / wish 希望 promise 承诺afford 负担得起 prefer 喜欢help 帮助(help to do / help do) like 喜欢(like to do / doing)continue 继续(continue to do / doing)begin / start 开始(begin / start to do / doing)如:I would like to have a sandwich. 我想要吃一个三明治。
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。
动词不定式的用法讲义
动词不定式的用法讲义动词不定式是英语语法中的一个重要部分,它具有丰富的用法和多样的功能。
下面让我们一起来详细了解一下动词不定式的各种用法。
一、动词不定式的形式动词不定式的基本形式是“to +动词原形”,例如“to study”“to play”。
但在一些情况下,to 会被省略,我们后面会详细讲到。
二、动词不定式作主语动词不定式可以用作句子的主语,表示一个具体的、将要发生的动作。
例如:“To learn a foreign language well is not easy”(学好一门外语不容易。
)但需要注意的是,为了避免句子头重脚轻,通常会使用形式主语 it ,将真正的主语动词不定式后置,变成“It is not easy to learn a foreign language well”三、动词不定式作宾语很多动词后面可以接动词不定式作宾语,常见的有:want(想要),hope(希望),decide(决定),plan(计划),expect(期望)等。
例如:“I want to go shopping this weekend”(这个周末我想去购物。
)四、动词不定式作宾语补足语有些动词后面会接宾语和动词不定式作宾语补足语,常见的这类动词有:ask(要求),tell(告诉),allow(允许),enable(使能够)等。
例如:“The teacher asked us to finish the homework on time”(老师要求我们按时完成作业。
)五、动词不定式作定语动词不定式可以用来修饰名词或代词,作定语。
例如:“I have a lot of work to do”(我有很多工作要做。
)这里的“to do”就修饰“work”,表示“要做的工作”。
六、动词不定式作状语1、目的状语动词不定式可以作目的状语,表示某个动作的目的。
例如:“He came here to see me”(他来这里是为了看我。
英语-人教新目标版-八年级下动词不定式
love to do
would like,want,help,learn, hope, decide,volunteer….
动词不定式
2. 用作宾语补足语:(v. + sb. + to do ) help him to get his future dream job
want sb to do tell sb to do would like sb to do
4. 疑问词who, what, which, where, when, how 加to do 可构成不定式短语, 在句中可用作主语、宾语、宾 语补足语、表语等。
how to care for 1.When _________ to start (start) hasn′t been decided. 2.I don’t know what _______ to do (do). 3.He can tell you where ________ to get (get) the book. 4.What the teacher told me is how ________ to deal (deal) with the relationship with the classmates.
初中英语人教版2017—2018八年级第二学期
动词不定式
构成:to + do(动词原形)
give up several hours to help others wants to be want to learn help him to get his future dream job
The infinitive
wish sb to do ask sb to do help sb to do
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The girl could visit the sick kids in the hospital to cheer them up. She stills there once a week to help kids learn to read. She went home to have breakfast. I make a lot of money to help the sick kids.
A: I want you to go now . B: Her parents wish her to be a teacher . C: He invites me to go swimming .
动词不定式作宾补结构
Ask sb to do sth
Invite sb to do sth Tell sb to do sth
练习
A: 我想买一些书。 I want to buy some books. B: 他们需要做更多的运动。 They need to do more exercise.
C: 他希望离开学校。 He hopes to leave school.
动词不定式用法
(二)动词不定式作宾语补足语。
动词不定式作宾语补足语表示宾语所做的动 作,可以用动词作宾语补足语的动词有: tell ,ask ,want ,invite ,encourage,help等。
动词不定式用法
动词不定式放在一些动词后面可以动词不定式作宾语 动词不定式可以放在一些动词后用作宾语,动 词不定式作宾语的常用动词有:begin ask ,want ,forget ,remember ,learn ,hate 等。
A:I want to go home now . B: She forgets to take some medicine.
动词后省"to"的不定式
(二)使役动词:
make, let ,have. A: My mother makes me go to school . B: Let the boy go .
动词后可省可不省“to”的不定式
(三) 特殊动词Help
A: I often help my mother do house work. B: My classmates help me to learn English.
to+动词原形
A: I want to buy some books.
B: They wanted to buy some books. C: He decides to go home by himself.
动词后省"to"的不定式
(一)感官动词: see, watch, notice, look at,hear, listen to,feel . A: He saw some birds fall into the river. B: I often hear the girl sing in the next room. C: They looked at that person went into the store.
I study hard to get good grades.
结语
动词不定式定义 动词不定式结构 带to的结构 省to的结构 动词不定式的用法 作宾语 作宾补 作目的状语
Want sb to do sth
Wish sb to do sth Advise sb to do sth
Expect sb to do sth
根据汉语完成句子:
我们需要想出一个好计划 We need ______ _______ ________ ________ a plan. 我们每人打电话给10个人,请他们来. We each _______ _______ ten people and ask them_______ ________. 他们总是自愿贡献他们的时间来帮助他人. They always________ their time ________ ________ other people. 他咳嗽的厉害,他的医生让他戒烟. He has a terrible cough. His doctor asked him _______ _______ ________ smoking.
C: My mother learns to dance.
不定式作宾语结构
Want to do sth Wish to do sth Need to do sth Try to do sth
Decide to do Hope to do sth sth Learn to do sth Plan to do sth
第二组: My friends want me to go out with him. Jack invites me to go shopping.
不定式定义及构成
(一) 动词不定式定义: 动词不定式是指动词的一种不带词形变 化从而不指示人称、数量、时态的形式,属 于非谓语形式。 (二)动词不定式构成: to +动词原形 省“to”的不定式
动词不定式的用法
(三)动词不定式作目的状语。 动词不定式作目的状语常用在 go ,come ,hurry等不及物动词后,表目的。
A: He went to see his sister yesterday. B: She goes to England to learn English .
不定式的否定形式
1.带to的动词不定式的否定 I want you to go now. I want you not to go now. 直接在“to”前加not
2.省to的动词不定式的否定 Let the boy go out . Let the boy not go out . 直接在动词前加"not"
人教课标版 八年级英语 (下册)
课题:动词不定式的用法
执教人:许 文 卿
四川省巴中市恩阳区关公乡中心小学
知识回顾
比较下列两组句子 第一组: Every morning i keep doing exercising He practices playing tennis after school.