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

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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 interesting,doesnt

2、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.Its too bad.表示不确定寻求证实寻求证实表示不确定附加疑问

3、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反义疑问句基本构成 +陈述部分Part 1助动词助动词 do/does/did have/has/hadbe动词动词情态动词情态动词Part 2主语主语Part 3遵循“前肯后否，亲否后肯”的原则Discovering Useful Structures关于动词关于动词助动词助动词 do/does/did have/has/hadbe动词动词情态动词情态动词Part 21.附加问句的谓语用助

4、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主语主语Part 3was shearent youdo youdid youhasnt shewill youcould hecan theyarent

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

6、问句用wont you。通常用通常用will you用用shall we用用will youwill youwont youwill youshall wewill you主句主句从句从句主句主句从句从句肯定式肯定式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反义疑问句回答只需注意事实注意事实，肯定即用，肯定即用yes，否定用，否定用no，无需考虑句子原，无需考虑句子原本是前否后肯或是前肯后否。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

7、面的答句，再根据前后一致原则写建议在答题时，先按照实际写后面的答句，再根据前后一致原则写Yes或或No Listening,speaking&talkingInvite a friend to a sports 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

8、:Actually,it is.You come here often,dont you?Dave:Yep.At least three times a week.Jack:You 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 y

9、oull get used to it.I used to come here every day when I first started.Jack:Oh,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

10、?B:_.Its a good day for sports.A:Then we can play football,_?B:.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 clas

11、s.Where is the coach?Hes late,_?B:Its been 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练一练练一练1.Linda ate nothing this mor

12、ning,_?2.Theres hardly 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 Discover

13、ing Useful Structures练一练练一练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 some food and chan

14、ge 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 wont be any concert this Saturday

15、 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,_?练一练练一练shall we will youis there will theredidnt sheare you does she did

16、 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 we must back her up,_?5.Henry thinks you are cheating your

17、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 c

18、onversation with appropriate tag questions.Tom:Mum,I can have one more burger,_?Murm:No,you cant.Youve already had two!Youre going to get sick.Oh,whats that noise?Dad:It isnt a storm coming,_?Tom:Yes,it is!But is onTV!Dad,come and see,_?Dad:What movie are you watching?Tom:The Day after Tomorrow.Mum:Lets watch it together,_?Family time!Dad:Good idea!cant Iis it will you shall we