人教版高中英语选修7 Unit1 Grammar 精品课件

1、Revise the Infinitive Unit 1 GrammarDo you believe I can fly like a bird?How can you believe I can fly like a bird? _ is to believe. Its impossible for humans _ now.To seeto fly like a birdMarty says2. I used to climb trees, swim and play football.3. Then I started to get weaker and weaker.1. Unfort

2、unately, the doctors dont know how to make me better, but I am very outgoing and have learned to adapt to my disability.4. Even after all that, no one could give my disease a name and it is difficult to know what the future holds.5. Sometimes, too, I was too weak to go to school so my education suff

3、ered.6. My ambition is to work for a firm that develops computer software when I grow up. Marty saysMarty says7. Last year I inventedand a big company has decided to buy it from me.8. I also have to do a lot of work, especially if I have been away for a while.9. Just accept them for who they are, an

4、d give them encouragement to live as rich and full a life as you do.不定式由“to+动词原形”构成,其否定形式是“not/never to 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,但有时态和语态的变化。不定式可以作主语、宾语、状语、表语和定语，但不能单独作谓语。不定式的逻辑主语有时用“for+名词或代词宾格”构成。不定式不定式动词不定式的作用动词不定式的作用 Functions of Infinitive 1 主语主语 (subject) 2 表语表语 (predicative) 3 宾语宾语 (ob

5、ject) 4 宾补宾补 (object complement) 5 定语定语 (attribute) 6 状语状语 (adverbial) 7 独立结构独立结构 (absolute construction) 1 不定式作主语不定式作主语 (subject)To keep smiling is healthy for you.Its important to look up the new words in the dictionary when you study English.单个不定式作主语时单个不定式作主语时, ,谓语动词用单数。谓语动词用单数。若不定式太长若不定式太长, ,往往用

6、往往用itit作形式主语作形式主语, ,不不定式后置。定式后置。 My job to protect the world. Your task is to _.is2 不定式作表语不定式作表语 (predicative) Seeing is to believe. To see is believing. Seeing is believing. To see is to believe. 不定式常用在系动词不定式常用在系动词 be, seem, appear, get, remain等后作表语。等后作表语。All you have to do is (to) finish the job q

7、uickly.如果主语部分有个表示不定式内容的如果主语部分有个表示不定式内容的do, 用作表语的不定式可省略用作表语的不定式可省略to。 Yao Ming likes to play basketball. I find it still necessary (for him) to _ if he wants to win. 3 不定式作宾语不定式作宾语 (object)句型：句型：think/ consider/ find it + adj.+ to do 常接动词不定式作宾语的动词有：常接动词不定式作宾语的动词有：agree, afford, appear, ask, attempt,c

8、are, choose, claim, dare, decide, demand, deserve, determine, expect, fail, get, hate, hesitate, hope, hurry, intend, learn, manage, offer, plan, prepare, pretend, promise, refuse, seem, tend, threaten,want, wish。4 不定式作宾补不定式作宾补 (object complement)My mum asks me to play the piano two hours every day.

9、The teacher told me to clean the blackboard.I expect you to give me some help.引导不定式作宾补的动词：引导不定式作宾补的动词：warn, tell, allow, help, ask, force等等+sb to do sth listen to hear watch 五看五看 see look at observe notice三三使使 let make have 二听二听一感觉一感觉: feel+ sb do sth（不带不带to）1. They saw the boy fall suddenly from th

10、e tree. The boy was seen to fall suddenly from the tree.但当以上的动词用于被动式，但当以上的动词用于被动式，to要还原：要还原：2. Mother made John wash the car for a week. John was made to wash the car for a week.不定式做宾补时不带不定式做宾补时不带to的情况的情况1 不定式在感官动词不定式在感官动词(feel, hear, listen to, watch, look at, notice, observe)后；后；2 使役动词使役动词 ( let,

11、have, make)后边作后边作宾补时宾补时, 省去省去to, 但是在被动语态中但是在被动语态中要还原要还原to；3 不定式用在介词不定式用在介词but, except, besides后时后时, 如果这些介词前有行为动词如果这些介词前有行为动词do的的各种形式各种形式, 那么介词后的不定式不带那么介词后的不定式不带to,相反则带相反则带to。1. She could do nothing but cry.2. I have no choice but to go.3. What do you like to do besides sleep.5 不定式作定语不定式作定语 (attribut

12、e)1. Kate is looking for a suitable coat to wear.2. Tom has a nice pen to write with.1. 不定式做定语时常放在被修饰的名不定式做定语时常放在被修饰的名词或代词之后词或代词之后 (a) She was very busy and had no time to visit her friends. (b) Ladies and gentlemen, I have something important to tell you.不定式作定语不定式作定语不定式作定语与所修饰的词之间有不定式作定语与所修饰的词之间有三种

13、关系：三种关系：I have a lot of work to do.我有很多工作要做。我有很多工作要做。 He is always the first to come.他总是第一个来。他总是第一个来。 We all have a chance to go to college.我们都有上大学的机会。我们都有上大学的机会。(1) 动宾关系动宾关系(2)主谓关系主谓关系(3)同位关系同位关系2. 当名词被当名词被the first ,the last, the only等词以及形容词最高级修饰时等词以及形容词最高级修饰时eg: She is always the first to come an

14、d the last to leave.3. something, anything, nothing, everything等复合不定代词常用不定式等复合不定代词常用不定式做后置定语。做后置定语。注意比较：注意比较：1) Have you anything to send? 你有什么东西要寄吗？你有什么东西要寄吗？2) Have you anything to be sent? 你有什么要（我或别人）寄的东西吗？你有什么要（我或别人）寄的东西吗？ （不定式（不定式to send的动作执行者是的动作执行者是you）（不定式（不定式to be sent的动作执行者是的动作执行者是已被省略的已被省

15、略的me 或或someone else） 4. 如果不定式是不及物动词如果不定式是不及物动词, 则后面需则后面需 适当的介词。适当的介词。 Please pass me some paper to write _. on3. 也可用在也可用在have to do和和there be 句型中。句型中。 There is no one to take care of her. I have no jewelry to wear.I got up early to _.You came here to_.in order to, so as to,enough to,only to, too . t

16、ocatch the train 6 不定式作状语不定式作状语 (adverbial) 在一些短语中也有体现在一些短语中也有体现eg: He spoke loudly (so as / in order) to be heard.1. 表示目的表示目的: to in order to so as to不定式作状语不定式作状语2. 表示原因表示原因: 不定式可以用在作表语的形容词后作不定式可以用在作表语的形容词后作状语状语, sorry, surprised, happy, glad, eager, angry, foolish, right, wrong, slow, quick, rude,

17、 cruel, disappointed等。等。eg: Im glad / pleased to see you. We were surprised to hear the news.so + adj. / adv. + as to dosuch + adj. + n. +as to doadj. / adv.+ enough + to dotoo + adv. / adj. +to do He was so foolish as to believe it. = He was such a fool as to believe it. = He was foolish enough to

18、believe it.3. 结果状语结果状语: :To tell the truth, I am not happy at the moment.to be frank to be honestto tell the truth7 独立结构独立结构 (absolute construction) 1. It is good to help others. 2. It is my ambition to make sure that the disabled people in our neighborhood have access to all public buildings. 3. My

19、 ambition is to work in the computer industry when I grow up. Identify its function.(subject)(subject)(predicative)想一想想一想4. I dont have time to sit around feeling sorry for myself. 5. I am the only student in my class to have a pet snake. 6. A big company has decided to buy it from me. 7. My fellow

20、students have begun to accept me for who I am. (attribute)(attribute)(object)(object)8. I have had to work hard to live a normal life. 9. Some days I am too tired to get out of bed. 10. We must call on local government to give financial assistance to disabled people. (adverbial)(adverbial)(object co

21、mplement)动词不定式的时态和语态动词不定式的时态和语态形形 式式 主主 动动 被被 动动一般式一般式进行式进行式完成式完成式完成进完成进行式行式to doto have doneto be doingto have been doingto be doneto have beendone(1) They pretended not to see us.(2) He pretended to be sleeping. (3) She pretended to have known it before.(一般式表示与谓语的动作同时/几乎/发生在它之后。)(在谓语动词发生的同时,不定式的动作

22、也正在进行。)(完成式表示动作发生在谓语动作之前。)(4) Were happy to have been working with you. (完成进行式表示谓语动作发生之前,不定式的动作一直在进行而且可能之后也继续。)不定式的时态不定式的时态 不定式的一般式不定式的一般式 to do I am glad to see you. He has decided to give her some money. 表示的动作通常与谓语所表示的动作表示的动作通常与谓语所表示的动作 或状态同时或者几乎同时发生，或是或状态同时或者几乎同时发生，或是 在它之后发生。在它之后发生。不定式的进行式不定式的进行式

23、to be doingI am very glad to be working with you.He pretended to be working hardwhen his boss passed him.表示的动作通常与谓语动词表示的动表示的动作通常与谓语动词表示的动作同时发生。作同时发生。不定式的完成式不定式的完成式 to have doneHe happened to have seen the film before. The novel is believed to have been translated into Chinese.不定式所表示的动作发生在谓语动作不定式所表示的

24、动作发生在谓语动作或状态之前。或状态之前。He wanted to have met you at the airport, but he didnt get there in time.表示过去没有实现的期待或者计划表示过去没有实现的期待或者计划hoped, promised, wanted, wished, expected, plannedHe would like to have played theviolin at the concert.不定式的完成式在不定式的完成式在would like后边表示后边表示未能实现的愿望。未能实现的愿望。 不定式的语态不定式的语态主动语态主动语态

25、to do 被动语态被动语态 to be doneIt is an honor for me to be invited to attend the meeting.Everyone likes the hero to be praised.We asked him to stay till the nextday, but he refused to.Are you a teacher? Yes, and I haveto be.What we want to do now is lie downand have a good rest.I didnt say anything but to

26、 make a gesture.省略省略to与省略与省略do1. prefer n. (doing) to n. (doing)2. prefer to do sth. rather than do sth.3. would rather do4. would rather + 句子（虚拟语气）句子（虚拟语气）5. advise / allow/ permit/ forbid sb. to do advise / allow / permit/ forbid) doing固定词组和句型固定词组和句型几对易混淆的词组：几对易混淆的词组：stop to do sth. 停下来去做某事停下来去做某事

27、 doing sth. 停止做某事停止做某事forget to do sth. 忘记去做某事忘记去做某事 doing sth. 忘记已做了某事忘记已做了某事remember to do sth. 记得去做某事记得去做某事 doing sth. 记得曾经做某事记得曾经做某事 The question is very difficult to answer. The problem is difficult to deal with.1. 主语主语be +adj. +to do 能用于此句型的形容词有能用于此句型的形容词有: difficult, easy, comfortable, fit, h

28、ard, pleasant, tiresome(使人疲劳的使人疲劳的), interesting, nice, heavy, dangerous, light, important, etc.主动形式表被动意义的不定式主动形式表被动意义的不定式The box is light enough to carry.The river water is warm enough to swim in.2. 主语主语+be +adj. + enough +to do The books seemed too heavy to carry. The ice is too thin to skate on.3

29、. 主语主语+be +too +adj. +to do1. Last summer I took a course on _. A. how to make dresses B. how dresses be made C. how to be made dresses D. how dresses to be made课堂练兵课堂练兵2. Ive worked with children before, so I know what _ in my new job. A. expected B. to expect C. to be expecting D. expects3. There

30、are five pairs_, but I am at a loss which to buy. A to be chosen B to choose from C to choose D for choosing4. I find these problems are easy _. A. to be worked out B. to work them out C. to work out D. to be worked them out5. _ late in the morning, Bob turned off the alarm. A. To sleep B. Sleeping

31、C. Sleep D. Having slept6. I would love _ to the party last night but I had to work extra hours to finish a report. A. to go B. having gone C. going D. to have gone7. John was made _ the truck for a week as a punishment. A. to wash B. washing C. wash D. to be washing8. Tom kept quiet about the accid

32、ent lose his job. A. so not as to B. so as not to C. so as to not D. not so as to9. The patient was warned _ oily food after the operation. A. to eat not B. eating not C. not to eat D. not eating1 爱和被爱都是最大的幸福。爱和被爱都是最大的幸福。_ are both great happiness.2 据说他已经完成了他的工作。据说他已经完成了他的工作。He is said _.3 根据报道他们已安全到达。根据报道