新概念英语青少版3B-Unit-18PPT课件

1、Unit 18Learning the rules,2,Listening and understanding,ROBERT: Dad! Have you asked Mum yet? WILLIAM: What about? ROBERT: Have you asked Mum if I can start karate lessons? WILLIAM: No, I havent. Ill. Shh! Shes coming,3,Listening and understanding,KAREN: What are you two whispering about? ROBERT: Oh,

2、 er, nothing! Im just going upstairs. See you later, Dad! WILLIAM: Yes, of course,4,Listening and understanding,KAREN: Whats the mystery? Is Robert all right? WILLIAM: Hes fine. He just wants me to ask you something. KAREN: Why doesnt he ask me himself? WILLIAM: Hes afraid that youll say no,5,Listen

3、ing and understanding,KAREN: Oh, dear! What is it, William? WILLIAM: Robert wants to learn karate. He doesnt know whether youll let him,6,Listening and understanding,KAREN: Oh, it that all! You worried me! ROBERT: Do you mean that you dont mind? KAREN: Of course I dont mind! Why would I mind? Karate

4、s a sport, isnt it,7,Listening and understanding,WILLIAM: Its a martial art! Its about fighting! KAREN: All competitor are a kind of fighting. The martial arts are also about rules,8,New words and expressions,whisper,9,New words and expressions,upstairs,10,New words and expressions,afraid,11,New wor

5、ds and expressions,whether,12,New words and expressions,fight,Fighting,13,Grammar,Whether 与if 引导宾语从句,一般既可用whether也可用if. 但是 （1）or not放在whether之后时,只能用whether不用if.E.g., I dont know whether or not he will come. 我不知道他是不是回来. （2）在强调任意选择时,用whetheror,此时不用if替换whether.He asked me whether I wanted to go there b

6、y train or by bus.他问我是想乘火车还是坐公共汽车去那里,14,Grammar,Whether 与if 引导宾语从句,一般既可用whether也可用if. 但是 （3）虽引导宾语从句,但为了强调宾语部分,也可把从句放在句首,此时只用whether不用if.Whether he will come I am not sure. 他是不是来我拿不准. （4）从句作介词宾语时只用whether不用if.It depends on whether it will be fine. 那得看是不是晴天,15,Grammar,Whether 与if 引导宾语从句,一般既可用whether也可

7、用if. 但是 （5）句子中有if引导的条件句,如再有表示“是否”的宾语从句,用whether不用if.He asked me whether Id move to New York if I got the job. 他问我如果我得到那份工作是否会搬家到纽约. （6）如果宾语从句为否定句时,则只用if不用whether.I dont know if it wont rain tomorrow.我不知道明天是不是会下雨,16,用在动词不定式之前时用whether不用if. I dont know whether to go there at once. 我不知道是不是该立刻去那里,17,Gui

8、ded Conversation,Would you like to learn karate? Why? / Why not? What new sport or activity would you like to learn? Why? Do you think martial arts are a good thing for young people? Why? / Why not? Karen says, All competitors are a kind of fighting. The martial arts are also about rules. What do you think,18,Pronunciation,Please ask Mum pause if I can start karate lessons. Ill find out pause whether she minds,19,Pattern Practice,A: Has Claire found a job? B: Ill ask her if shes found one,20,Pattern Practice,A: Can you tell me