人教版选修7unit1语法动词不定式公开课课件

1、Unit 1 Living Well,Discovering useful structures Revision of the Infinitive,1,学习交流PPT,动词不定式的作用 Functions of Infinitive,主语 (subject) 宾语 (object) 表语 (predicative) 定语 (attribute) 状语 (adverbial) 宾补 (object complement),2,学习交流PPT,1. It is good to help others. 2. It is my ambition to make sure that the dis

2、abled people in our neighborhood have access to all public buildings. 3. My ambition is to work in the computer industry when I grow up.,Identify its function.,(subject),(subject),(predicative),想一想,3,学习交流PPT,4. I dont have time to sit around feeling sorry for myself. 5. I am the only student in my c

3、lass to have a pet snake. 6. A big company has decided to buy it from me. 7. My fellow students have begun to accept me for who I am.,(attribute),(attribute),(object),(object),4,学习交流PPT,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

4、on local government to give financial assistance to disabled people.,(adverbial),(adverbial),(object complement),5,学习交流PPT,1. 不定式作主语(常用it作形式主语) To finish this report took him a week. It took him a week to finish this report. 2. 不定式作表语 To see is to believe. What I would suggest is to put off the meet

5、ing.,6,学习交流PPT,3. My wish is to finish the job quickly.,2. My job is to help the patients.,不定式常用在系动词 be, seem, appear, get, remain等后作表语,常用不定式作表语的主语有：aim/ purpose/ idea/ intention/ plan/ wish/ decision/ choice等,作表语,7,学习交流PPT,. 作定语 (常常表示将来的动作),1. 不定式做定语时常放在被修饰的名词或代词之后 She was very busy and had no time

6、 to visit her friends. Ladies and gentlemen ,I have something important to tell you . 2. 当名词被the first ,the last, the only 等词以及 形容词最高级修饰时 eg: She is always the first to come and the last to leave.,8,学习交流PPT,4. 如果不定式是不及物动词,则后面需适当的介词 Please pass me some paper to write_. She has a nice pen to write _.

7、He bought a flat for the family to live _.,on,with,in,3.也可用在have to do和there be句型中。,There is no one to take care of her. I have no jewelry to wear.,9,学习交流PPT,eg: He spoke loudly (so as / in order) to be heard.,. 作状语,1. 表示目的: to / in order to / so as to,2. 表示原因 不定式可以用在作表语的形容词后作状语, sorry, surprised, h

8、appy, glad, eager, angry, foolish, right, wrong, slow, quick, rude, cruel, disappointed等。,eg: Im glad/pleased to see you. We were surprised to hear the news.,10,学习交流PPT,3.结果状语:, We hurried to the station only to find the train had left.,only to do,only to be done,表示意外的结果,1. We hurried to the station

9、 only to find the train had left. 2. We hurried to the station only to be told the train had left.,11,学习交流PPT,. 作宾补,I didnt ask you to pay for the meal. They have warned us to be careful of rats.,接 to do作宾语补足语的动词及短语有：ask/ advise/ allow/ beg/ want/ warn/ wish/ tell/ teach/ require/ permit/ forbid/ ge

10、t/ help/ invite/ force/ encourage/ call on/ persuade等,12,学习交流PPT,不定式在下列动词后作宾语补足语时，要省略to,“感觉” feel “听” hear, listen to “使役动词”have, make, let “看” see, look at, observe, watch, notice,13,学习交流PPT,但当以上的动词用于被动式，to要还原： 1. They saw the boy fall suddenly from the tree. The boy was seen to fall suddenly from

11、the tree.,2. Mother made John wash the car for a week.,John was made to wash the car for a week.,14,学习交流PPT,动词不定式的时态和语态,一般式,完成式,进行式,完成进行式,to do,to have done,to be doing,to have been doing,形 式,主 动,被 动,to be done,to have been done,15,学习交流PPT,1. I asked him to attend the meeting.,2. He seems to be read

12、ing English poems.,3. He is said to have translated the book into English last year.,（to attend the meeting 动作发生在ask 后),（seem 和read 同时发生, 强调动作正在进行）,（translate the book 发生在be said 之前）,16,学习交流PPT,II. 用所给词的适当形式填空。 1. More and more people do not like watching TV; the programs seem _ (get) worse all the

13、time. 2. The poem is said _ (translate) into many languages in the past decade. 3. The flu is believed _ (cause) by viruses that like to reproduce in the cells inside the human nose and throat.,to be getting,to have been translated,to be caused,17,学习交流PPT,4. The crowd cheered wildly at the sight of

14、Liu Xiang, who was reported _ (break) the world record in the 110-meter hurdle race. 5. You are said _ (write) a new novel these years. Have you finished it?,to have been writing,to have broken,18,学习交流PPT,1. _ is to lengthen life. (节约时间就是延长生命。) 2. She is easy _. (她很好相处。) 3. When I called him, he hap

15、pened _. (我给他打电话时, 他正在洗澡。),III. 根据汉语提示, 用不定式完成下列句子。,To save time,to get along with,to be taking a bath,19,学习交流PPT,4. The book is said _ _. (据说这本书已经被翻译成好几种语言。) 5. The experience makes us realize that much of the world remains _. (这次经历使我们意识到世界上有很多东西仍有待探索。) 6. The teacher asked us _. (老师叫我们不要如此吵闹。),to

16、have been translated into several languages,to be explored,not to be so noisy,20,学习交流PPT,The question is very difficult to answer. The problem is difficult to deal with.,1.主语be +adj. +to do,能用于此句型的形容词有：difficult ,easy, comfortable ,fit, hard, pleasant, tiresome(使人疲劳的) ,interesting, nice , heavy, dan

17、gerous, light, important, etc.,主动形式表被动意义的不定式,21,学习交流PPT,The box is light enough to carry. The river water is warm enough to swim in.,2.主语+be +adj. + enough +to do,The books seemed too heavy to carry. The ice is too thin to skate on.,3.主语+be +too +adj. +to do,22,学习交流PPT,动词后面跟V-ing还是不定式,含义不相同,总的来说,表示习

18、惯的, 一般性的动作多跟V-ing,一次性的具体的被动动作多跟不定式。 1) I like to go with you. 我想和你一块儿去。,重点!,23,学习交流PPT,I like reading. 我喜欢阅读。 He promised to help her. 他答应过要帮助她。 We love watching VCD. 我们喜欢看VCD。,24,学习交流PPT,2) remember, forget, regret后面跟V-ing时, 表示过去的动作,后面跟不定式时, 不定式表示将来的动作。 I remember meeting him in the street. 我记得在街上见过他。 I remember to write a letter to my parents. 我想起来要