八年级英语下册语法考点【动词不定式】整理复习
8下期中复习不定式和动名词归纳

不定式的常见用法不定式做用作宾语一、 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, offer (主动提出做……)),期望决定学习(expect, hope, decide, learn,manage),宁可计划知道(prefer, plan, know,promise),希望想要愿意(wish, want, would like / love)。
失败或拒绝 (refuse, fail )如:1) We decided to talk to some students about why they go there.2) He prefers to eat white bread and rice.3)Id love to visit Mexico.二、 当复合宾语中的宾语是不定式时,先用形式宾语it 代替不定式,把不定式置于补语之后,如:...feel / find / make / ... it+adj. / n.+to do...。
如:( ) I find it difficult _________ everything.A.to rememberB.rememberC.rememberingWe think it quite important for us to learn a foreignlanguage well.He feels it his duty to help the poor.三、 动词不定式作补语时,在主动语态句里补宾语,在被动语态句里补主语,句子的宾语或主语是不定式动作的逻辑执行者。
如果不定式是to be done ,句子的宾语或主语就是逻辑承受者。
1.在主、被动语态句里用带to 的动词不定式作补语的动词主要有:要求允许提议(ask, allow, permit, advise),期望邀请鼓励(expect, suppose, invite, encourage),教导告诉想要(teach, tell, want),如: 1) I ‘d invite her to have dinner at my house.2) T eenagers should be allowed to choose their own clothes.3) E-mail English is supposed to be used on mobile phones. sb. to do sth.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,sb. do sth.二“听”:hear, listen to,一“感觉”:feel,一“注意”:notice。
八年级英语不定式复习

不定式的构成:
to+动词原形 ,其否定形式是
“not/never to do”/not do. 不定式可以带宾语或状语构成不定式短语,没有人称和数的变
化。
一.不定式的句法功能
1.It’s very common to raise money in Canadian and American school.
8. 只能跟ving 的动词: finish, enjoy, mind, keep(on), practise, feel like(want), be busy doing . give up, look forward to doing, can’t help doing,
1. I can’t help _____ (cry) . 2. He didn’t finish ____ (do) homework. 3. Would you mind ____ (close) the window. 4. Every day Mary practise ______ (speak) English. 5. Kangkang is busy _____ (watch) TV now. 6. I look forward to ___ (hear) from you. 7. They keep ____ (play) basketball. 8. My sister feels like ______ (eat) ice cream.
6. 作定语(后置) to say 1.Do you have anything more_______
﹙要说﹚? 2.She has a lot of work _______ to do ﹙做﹚ every day . to live in 3. The old man has a house _________ ﹙住﹚. to work with 4. She is a nice person__________ ﹙ 共事﹚ .
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。
八年级英语不定式的复习资料

八年级英语不定式的复习资料
1.结构:to +动词原形
2.作用:
1做主语,谓语用第三人称单数,也可以用it做形式主语,将不定式后置
如:to play computer games is fun .= it's fun to play computer games.
2作定语,放在被修饰词之后,作后置定语
如:he has a lot of homework to do ,
3作状语,放在句尾,也可以放在句首表示强调
如:to be slim苗条,the girl goes on a diet节食=the girl goes on a diet to be silm.
4作宾语,如:he has decided to sell her car
5作表语,如:my ambition is to be a college student= is to go to college.
6作补语,如:the computer game CS is exciting to play . I want you to help me 此处help me作you的宾补
7作宾语,要求跟不定式的动词有:want decide agree hope offer would like等等
如:he hopes to have a new MP3 player
8作宾语补足语,要求不定式作宾补,说明该宾语发出的动作,动词常有:want ask wish would like
感谢您的阅读,祝您生活愉快。
仁爱版英语八年级下册动词不定式用法解析与练习

名师指导:动词不定式用法解析与练习动词不定式用法灵活多样,这一点你是否了解?有些动词或短语后面既可以接不定式又可以接动名词,其用法区别你是否已铭记于心?OK.请看——动词不定式没有人称和数的变化,在句中不能独立作谓语。
但动词不定式具有名词、形容词和副词特征,在句中可以作主语、宾语、宾语补足语、定语、表语和状语等多种成分。
另外,动词不定式具有动词特点,可以有自己的宾语和状语,组成动词不定式短语。
动词不定式的肯定形式是to+do;其否定形式是not to+do。
下面以动词不定式在句中的作用来予以详细说明。
1.作主语可以直接作主语。
如:To see is to believe.百闻不如一见。
但在英语中,常用it作形式主语,真正的主语即动词不定式放在后面。
如:It's wrong to play tricks on other people.It's our duty to keep our environment clean and tidy.(Lesson 10).点击规律:动词不定式在句中作主语时,常放在It is +adj.(形容词)+to do sth.或It is +n.(名词)+to do sth.句型中,it仅作形式主语。
it作形式主语时,有三种情况:1)常用形容词作它的表语。
真正主语不定式通常有逻辑主语,一般用for短语来表示,即for sb.to do sth.(其中sb.就是to do的逻辑主语)。
如:It's important for us to keep the water clean.保持水质清洁对我们来说是很重要的。
[注意]for不能用of来代替,因为不能说:You are important.当表语形容词表示不定式的逻辑主语的性质或特征时,则不用for,而用of(sb.to do sth.)。
如:It's very kind of you to say so.你这样说真是太好了。
八年级下册英语考点

八年级下册英语考点以下是八年级下册英语的一些重要考点:1. 动词不定式:不定式是英语中一种重要的语法结构,可以作为名词、形容词、副词使用,还可以与情态动词连用。
不定式的形式是“to + 动词原形”,例如“to study”、“to eat”等。
2. 现在进行时:表示正在进行的动作或正在发生的事情,结构为“be + 动词的现在分词”,例如“I am studying”、“He is playing football”。
3. 被动语态:表示动作的承受者是主语,而不是执行者,结构为“be + 动词的过去分词”,例如“The book is written by him”、“The bridge was built in 2010”。
4. 情态动词:表示推测、可能或必要性的动词,如“can”、“could”、“may”、“might”、“must”、“should”等。
5. 形容词的比较级和最高级:形容词的比较级和最高级是描述事物大小、长短、高低、快慢等方面的差异,结构分别为“形容词的比较级+ than”、“the + 形容词的最高级”。
6. 副词的用法:副词用于描述动作的方式、时间、地点等,常见的副词有“slowly”、“fast”、“here”、“there”等。
7. 宾语从句:在句子中作宾语的从句,通常放在动词或介词后面,例如“I don’t know what the time is”、“He hasn’t decided whether togo or not”。
8. 虚拟语气:表示与实际情况相反的情况,或者表示主观愿望和假设情况,例如“If I were you, I would go to the movies”、“It’s important that we shoul d learn English well”。
9. 时态的用法:时态是英语语法中的重要概念,表示动作发生的时间和状态,包括现在时、过去时、将来时等。
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。
人教版英语八年级下册unit12单元语法复习经典练习课件

注意: 1. what, which, who, where, when, how等特
A. myself
B. ourselves
C. yourself
D. yourselves
2. Whenever Mary reads an interesting story, she can’t keep it to ___D____ and wants to share it with her friends. A. she B. her C. hers D. herself
e.g. You had better do some exercise every day.
1. —I’m afraid I won’t pass the exam.
—Come on, Bill. You should believe in
___C____. That’s the secret of success.
5. I wanted to thank them for all their _k_in__d_n_e_ss_(kind).
6. Who knows what caused the old man’s _d_e_a_t_h___(dead) last night?
7. When Jenny won first prize in the competition, she had the _f_e_e_li_n_g__(feel) of joy and pride.
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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。
· I want to tell you a story. 我想给你讲个故事。
· They begin to work at eight every morning.
他们每天早晨8点开始工作。
· Don’t forget to lock the door.别忘了锁门。
·Would you like to go and have a picnic with us tomorrow?
明天和我们起去野餐好吗?
【特殊】
1.如果and连接两个动词不定式,第二个动词不定式一般省“to”。
· He wants to go and have a swim with us.
他想和我们一起去游泳。
2.若作宾语的动词不定式(短语)很长,可用it作形式宾语。
· I find it interesting to learn English with you.
我觉得和你一起学英语很有趣。
· He found it hard to catch up with others.
他觉得赶上别人很困难。
作宾语补足语
· The teacher asked us to read English for half an hour in the morning.老师让我们早晨读半小时英语。
· The teacher often tells Jim not to spend too much time playing computer games.
老师常告诉Jim不要花太多时间玩电脑游戏。
· Please let me help you.让我来帮助你。
动词不定式作宾语补足语,表示宾语所做的动作,可以用动词不定式作宾语补足语的动词有:tell, ask, want, like, invite, encourage, help等。
但在let, make, see, watch, hear, feel, notice, have等感官听觉动词或使役动词后面作宾语补足语的动词不定式一般要省略动词不定式符号“to”,可以归纳为以下三种句式:
不可以省to的不定式作宾语补足语:tell /ask / want / would like / wish / like / invite /encourage /teach sb. to do sth.
I want you to go now.
我想让你现在就走。
Her parents wish her to be a teacher.
她父母亲希望她当老师。
省“to”的不定式作宾语补足语:Let / make / have sb. do sth.
Let the boy go out now. 让那个男孩出去。
The boy made the baby cry. 男孩弄哭了这个小孩。
see / watch / hear / notice / feel sb. do sth.
I saw the students play basketball on the playground yesterday.昨天我看见学生们在操场打篮球。
I often hear the girl sing in the next room.
我经常听到女孩在隔壁唱歌。
可省可不省的:help sb. (to)do sth.
I often help my mother (to)do housework.
我经常帮妈妈做家务。
(1)动词不定式的否定式是直接在to之前加not。
· Tell them not to play football in the street.告诉他们不要在街道上踢足球。
(2)省to的动词不定式的否定式是直接在动词前面加not。
·Let the boy not go. 让那个男孩别走。
(3)如果将主动语态变为被动语态时,作宾语补足语的动词不定式变为主语补足语,动词不定式则不省“to”,即原来省的再加上。
· The boy made the baby cry.· The baby was made to cry by the boy.那个孩子被男孩弄哭了。
作定语
动词不定式作定语常用来修饰名词或不定代词,放于所修饰的词后,为后置定语。
· Who was the first one to arrive? 谁第一个到的?
· She has no paper to write on? 她没有纸写字?
· The best way to learn English is to use it.
学英语最好的方法是使用它。
· When is the best time to plant vegetables?
什么时候是种植蔬菜的最好时间?
·Do you have something to drink? 你这有喝的吗?
动词不定式(短语)作定语修饰名词时,与其所修饰的词具有一种动宾关系,如果不定式中的动词为不及物动词时,其后应加上一个含义上所需要的介词。
· I have no chair to sit on.我没有椅子坐。
· He has no house to live in.他没有房子住。
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。
· He went to see his sister yesterday.他昨天去看妹妹了。
· They got up early to catch the early bus.
他们早起去赶早班车。
有时可以把不定式(短语)提前,放于句首,表示强调目的。
· To learn English quickly and well, h e went to England.
为了更快更好地学英语,他去了英国。