【课件】Unit 3 Discovering Useful Structures 课件高中英语人教版（2019）必修第一册

1、Unit 3 Sports and FitnessPeriod 7 Discovering Useful Struures Discovering Useful StructuresRead the conversations below and underline the tag questions and their answers. What functions do the tag questions have?1. Amy: Its not a real sport, is it? Shen Qi: Yes, it is.2. Adam: That sounds interestin

2、g, doesnt it? Julie: Sure, it does.3. Lin Tao: Hi! Its a beautiful day, isnt it? Han Jing: Yes, it is. Im going to play soccer. Can you come along and join us? Lin Tao: Sorry,I cant. I ve got to meet my adviser. By the way, our school soccer team won at last, didnt they? Han Jing: No, they didnt. It

3、s too bad.表示不确定寻求证实寻求证实表示不确定附加疑问句：是指当提问的人对前面所叙述的事实不敢肯定，而需要向对方加以证实时所提出的问句。主要用于口语，由“陈述句简略疑问句”两部分组成。Discovering Useful Structures反义疑问句基本构成 + 陈述部分Part 1助动词 do/does/did have/has/hadbe动词情态动词Part 2主语Part 3遵循“前肯后否，亲否后肯”的原则Discovering Useful Structures关于动词助动词 do/does/did have/has/hadbe动词情态动词Part 21. 附加问句的谓语用

4、助动词、be动词或情态动词；2. 附加问句的谓语时态及数与陈述部分的谓语保持一致。Discovering Useful Structures关于主语陈述部分主语如果是人称代词主格，保持不变There be 中，反义疑问句主语为there陈述部分主语如果是名词，根据单复数变为he, she, it, they陈述部分主语是不定代词，如果指代物，反义疑问句则用it, 如果指代人，反义疑问句则用he / they不定式，动名词做主语时，反义疑问句主语为it主语Part 3was shearent youdo youdid youhasnt shewill youcould hecan theyare

5、nt theyisnt itisnt there否定副词：no, not, never, hardly, rarely, seldom, scarcely, barely否定代词：few, little, nothing, no one, nobody, neither, none.肯定式否定前缀：un-，non-，in-，dis-，a-，de-，under-，anti-，counter-.否定式does shedid shewasnt heisnt itwas there若表示“请求”，简短问句通常用will you；若表示“邀请，劝说”，简短问句用wont you。通常用will you用

6、shall we用will youwill youwont youwill youshall wewill you主句从句主句从句肯定式will hedid hecant youdoesnt hedidnt INo, Im not.No, Im not.No, we cant.No, we cant.You bet!反义疑问句回答只需注意事实，肯定即用yes，否定用no，无需考虑句子原本是前否后肯或是前肯后否。建议在答题时，先按照实际写后面的答句，再根据前后一致原则写Yes或No Listening, speaking & talkingInvite a friend to a sports

7、eventRead the conversation. Decide whether the intonation of the tag questions is rising or falling.Dave: Wonderful gym, isnt it?Jack: Er. yes. Its great.Dave: This isnt your first time here, is it?Jack: Actually, it is. You come here often, dont you?Dave: Yep. At least three times a week.Jack: You

8、ve lost some weight, havent you?Dave: Yes. All that fat has become muscle now. If you want to lose weight, too,I recommend using the spin bike.Jack: OK, but it wont make me too tired, will it?Dave: Maybe at first, but youll get used to it. I used to come here every day when I first started.Jack: Oh,

9、 I dont have to come here every day, do l?Dave: No. Of course not. Its up to you, isnt it?Discovering Useful StructuresComplete the conversations with appropriate tag questions or correct answers. 1. A: Its not going to rain, is it? B:_. Its a good day for sports. A: Then we can play football, _? B:

10、. We dont have a ball.2. A: Its Sports Day next Thursday, _? B: You re right, it is. Lets ask Xia Lei if she wants to join a team. A: She likes soccer, _? B: _. But she loves volleybal. She could be in the volleybal team.3. A: Its time for badminton class. Where is the coach? Hes late, _? B: Its bee

11、n 10 minutes already. He isnt coming, _? A: Cool! We can have a good time. Thats great! B: Shh! A: oh, no, he is right behind me, _? C: Yes, I am. No, it isntcant weisnt itdoesnt sheNo, she doesntisnt heis heisnt heDiscovering Useful Structures练一练1. Linda ate nothing this morning, _? 2. Theres hardl

12、y any milk in the bottle, _? 3. He has never ridden a horse before, _? 4. He seldom came here, _? 5. Everything seems all right,_ ? 6. No one failed in the exam, _? 7. Neither you nor I am a artist, _? 8. He cant be her father, _? did sheis there has he did he doesnt it did he are we is he Discoveri

13、ng Useful Structures练一练9. They have no time to visit the museum, _? 10. Youd better go at once, _? 11. He dislikes the two subjects, _? 12. These tools are useless now, _? 13. He used to get up at 6:30, _? 14. Lets go there by bus,_? 15. Let us go to play football, _? 16. Dont forget to give Polly s

14、ome food and change her water, _? do they hadnt youdoesnt he arent they didnt/usednt he shall we will you will you Discovering Useful Structures17. Lets go shopping this afternoon,_ ? All right. 18. Pass me the dictionary, _ ? Yes, with pleasure. 19. There is little water in the glass, _ ? 20. There

15、 wont be any concert this Saturday evening, _ ? 21. I guess she taught herself Japanese, _ ? Yes. 22. I dont believe you are right, _ ? 23. She doesnt think that Tom sings best in the class, _ ? 24. I know you didnt want to hurt me, _ ? 25. My parents control every part of my life, _?练一练shall we wil

16、l youis there will theredidnt sheare you does she did you dont they Discovering Useful StructuresAdd tag questions to the statements.1. Lets go and work out in the gym,_?2. You dont take part in a marathon when youre ill, _?3. Turn off theTV, _?4. Shes doing all she can for us in times of stress, so

17、 we must back her up, _?5. Henry thinks you are cheating your friends, _?6. Andys never been anything but a friendly guy, _?7. Emily had to cut out sugar from her diet as her doctor suggested, _?8. Theres going to be a talk on wellness and fitness next week, _?shall wedo youwill youmustnt wedoesnt hehas hedidnt sheisnt thereDiscovering Useful StructuresComplete the conversation with appropriate tag questions.Tom: Mum, I can have one more burger, _?Murm: No, you cant.Youve already had two