初中英语宾语从句复习课件(PPT22张）

1、Object Clauses,宾语从句专项复习,一教学任务 复习宾语从句 二教学重点 1.宾语从句的概念 2.宾语从句的引导词 3.宾语从句中的语序 4.宾语从句的时态变化,教学难点 1. if与whether的区别 2. when与if 引导的宾语从句和状语从句 3. 宾语从句与简单句的互换,We know him,We know he likes English,主s,主s,谓v,谓v,宾o,宾o,宾语从句就是由一个句子来构成主句的宾语,简单句,复合句,一 什么 是宾语从句,试比较,Do you know who is the first Chinese astronaut(宇航员)? O

2、ur teacher told us that the earth goes around the sun. Please tell me where she has gone. I dont know if he will come tonight. Lets find out whats on tonight,Find out the Object Clauses,We are proud of that Beijing is one of the biggest cities in the world,She hopes she can pass the exam. The teache

3、r told us Tom didnt tell a lie,I hear he will be back in an hour,二 .宾语从句的引导词,1.陈述句作宾语从句,由 来充当引导词连接主从句,that,that,that,that,that可省略,1)Do you know book it is （这是谁的书） ? 2)Could you tell me the train is late（火车为什么迟到）？ 3)He asked us we left （我们什么时候离开,2.特殊疑问句作宾语从句, 由 充当引导词来连接主从句。由连接代词who,whom,whose,which,w

4、hat和连接副词 where,how,why,when引导的宾语从句，这些连词既有词义又充当句子成份,二 .宾语从句的引导词,whose,why,when,特殊疑问词,1)Is she right? I want to know . I want know she is right . 2) Can you swim? She asked me. She asked I could swim,一般疑问句作宾语从句, 由 充当引导词来连接主从句,二 .宾语从句的引导词,if/whether,if/whether,if/whether,If 与whether 的区别,I dont know _ h

5、e will come or not. I dont care of _ he is handsome. He wondered _ to stay here the next week,与or not 连用只能用whether,介词后的宾语从句只能用whether,与to do 不定式连用只能用whether,whether,whether,whether,将下列问句变成陈述句。 1. Can he swim ? swim . 2. Does he have a pen ? a pen . 3. Where did he go t ? . 4. Whats wrong with you ?

6、. 5. What happened to you ? . 6. Which is the way to the station? . 想一想 为什么4，5，6 语序不变,He can,He has,Where he went,What happened to you,Whats wrong with you,Which is the way to the station,陈述语序“主语在前，谓语在后”的顺序,A. What is he doing,He asked me_,what he was doing,B. Where does Jim go,Everyone wants to kno

7、w _,where Jim goes,D. Who is waiting for her,Please tell me _,who is waiting for her,宾语从句要用_语序。 “主语在前，谓语在后”的顺序,陈述,C.Who is he waiting for,Could you tell me,who he is waiting for,练一练,四.宾语从句中时态的变化,填一填,was,is,will cook,is singing,has been,was playing,had learned,1.当主句是一般现在时，宾语从句的时态不作限制，我们可以根据句子的需要使用 。

8、（需要性原则,任何时态,2.当主句是一般过去时的时候，宾语从句必须运用 ，从而达到主句和从句的相互一致。（呼应性原则,1) He will go to Hong Kong . 2) He is sick. 3) He is reading a book . 4) He has finished his work,1) He to Hong Kong,2) He sick. 3) He a book . 4) He his work,辨一辨,would go,was,was reading,had finished,四.宾语从句中时态的变化,相应的过去的某一种时态,当宾语从句说明的是客观存在的事

9、实或者是客观存在的真理时，就不用受到主句时态的限制，仍用用 。（特殊性原则,He told me (that,Summer is after Spring,I was told (that,the sun is much bigger than the moon,My parents told me (that,no news is good news,比一比,一般现在时,练一练 1.I hear Jim _(arrive) two days ago. 2.She often asks me where I _(go)next year,arrived,will go,3. What is h

10、e doing,He asked me _,what he was doing,4. He can speak Japanese,He said _,that) he could speak Japanese,5. Light travels faster than sound,He said _,that) light travels faster than sound,6. The earth goes round the sun,He said _,that) the earth goes round the sun,确定从句的时态(根据主句时态,主句时态,从 句 时 态,连 接 前,连

11、 接 后,一般现在时,时态保持不变,一般过去时,一般现在时,did,一般过去时,had done,一般将来时,would do,现在进行时,was/were doing,现在完成时,had done,练一练1.I dont know what I shall do next .(变为简单句） I dont know next .2.John didnt decide which book he would buy .(变为简单句） John didnt decide .3.Can you tell me how to get to the bus stop ?(变为复合句） Can you t

12、ell me the bus stop ?4.Please tell Lucy how to use the MP5 .(变为复合句） Can you tellLucy the MP5,比一比 I dont know where I should go. Tell me how I can do it. I dont know where to go. Tell me how to do it. 你有什么发现？ 结论：由连接代词和连接副词引导的宾语从句 疑问词 + to do 的简单句,五.宾语从句与简单句的转换,What to do,which book to buy,how I can g

13、et to,how she can use,条件：(1)主主从主 (2)主宾从主,六.否定前移,He wont go swimming. I think,I dont think,that he will go swimming,当宾语从句表示否定的意义、主句为第一人称、动词为think 、 expect 、 believe 、 guess 、 imagine 、 suppose时，常将从句的否定移到主句上,七. if/when具有双重意义,1.I want to know if he _ (come) tomorrow,If he _ (come). Please tell me,2.Cou

14、ld you tell me when he_ (come),Please take him to school when he _ (come,if ：引导宾语从句或条件状语从句； when：引导宾语从句或时间状语从句。 当if/when引导宾语从句，根据实际情况选用时态； 当if/when引导状语从句，应遵循“ ”原则,will come,comes,will come,comes,主将从现,宾语从句三要素,that（陈述句,ifwhether（一般疑问句,特殊疑问词（特殊疑问句,主句为一般现在时从句可为任何时态,语序,宾语从句的语序都为陈述句语序,客观真理 自然现象 公式定理 名言警句

15、时态不变,七.本课小结,Find out the mistakes and correct them. 1 Could you tell me where do they live? 2 She knew that Danny is a student. 3 He told me that winter was colder than autumn. 4 Do you know who car it is,was,is,whose,六.课堂检测,1. Could you tell me ? A. where the twins wereB. where the twins are C wher

16、e are the twins 2. A: Do you know ?B: Yes , he came here by train . A. when he came hereB. if he will come here C. why he came here D. how he came here 3.She says she English for ten years .A. learned B. has learned C. was learning D. have learned 4. The teacher told us that the earth round .A. was B. is C. will be D. would be 5. Tell