Unit3 Discovering useful structures (ppt课件)-2022新人教版（2019）《高中英语》必修第一册.pptx

1、Discovering Useful Structures1.master the usage of tag questions.2.use tag questions freely in their daily communication.“Its a nice day,isnt it?”“You are eager to go back to school,arent you?”E-sports are not real sports,arent they?That sounds like fun,doesnt it?Observe and analyze Look at the foll

2、owing sentences and tell What are the characteristics of the two sentences.Tag questions are used in the sentences.Read the conversations below and underline the tag questions and their answers.forms of tag questionsConversation 1A:Zhu Ting is a volleyball star,isnt she?B:Yes,she is.I really admire

3、her.Coversation2:A:Su Yiming won the gold medal in the mens Big Air in Beijing 2022 Winter Olympics Games,didnt he?B:Yes,he did.He is the youngest athlete to win the gold medal in theWinter Olympic Games of our country.Coversation3:A:Liu Xiang didnt perform well in the 2008 Beijing Olympics,did he?B

4、:No,he didnt.It was a pity for him.But he is still a good athlete.Coversation4:A:You seldom go to a gym,do you?B:No,I dont.1.isnt he?Yes,he is.2.didnt he?Yes,he did.3.did he?No,he didnt.4.do you?No,I dont.Summarize how tag questions are formed.组成组成 回答回答肯定式陈述部分+否定附加疑问部分如果事实是肯定的，回答用“yes+肯定结构”；反之，用“not

5、+否定结构”。否定式陈述部分+肯定附加疑问部分如果事实是肯定的，回答用“yes+肯定结构”；反之，用“not+否定结构”。functions of tag questions Task 1 Read the conversations once again and think about what function they have.Conversation 1A:Yao Ming is a basketball star,isnt he?B:Yes,he is.I really admire him.Coversation2:A:Liu Xiang won the gold medal i

6、n the mens 110-meter hurdles at the 2004 Olympics,didnt he?B:Yes,he did.He is the first Asian to win the gold medal in the mens hurdles.Coversation3:A:Li Ning didnt perform well in the 1988 Seoul Olympics,did he?B:No,he didnt.It was a pity for him.But he is still a good gymnast.Coversation4:A:You se

7、ldom go to a gym,do you?B:No,I dont.The tag questions above are used for confirmation.Task 2 Look at the following sentences and find out the function of tag questions.(1)Join us in running,will you?(2)Come and play Jianzi with us,will you?(3)Dont sit at the table for a long time,will you?The tag qu

8、estions above are used for giving suggestions.特殊用法和结构特殊用法和结构(1)若陈述部分含有若陈述部分含有hardly，never，few，nothing，little，nobody，seldom等否定等否定词或半否定词，其疑问部分要用词或半否定词，其疑问部分要用_式；式；He has few friends here，has he?他在这儿几乎没朋友，是吗？他在这儿几乎没朋友，是吗？She said nothing，did she?她什么也没说，是不是？她什么也没说，是不是？(2)若陈述部分含有带否定前缀的词，疑问部分仍用若陈述部分含有带否定前

9、缀的词，疑问部分仍用_式；式；It is unfair，isnt it?这不公平，不是吗？这不公平，不是吗？(3)当陈述部分为当陈述部分为there be句型时，疑问部分仍用句型时，疑问部分仍用_作作“主语主语”；There was nothing in the room，was there？房间里什么也没有，是吗？房间里什么也没有，是吗？肯定肯定否定否定there(4)当陈述部分的主语是当陈述部分的主语是 something，anything，nothing，everything等复合不定代词等复合不定代词时，其反意疑问句的主语要用时，其反意疑问句的主语要用_。Everything is r

10、eady，isnt it?一切都准备好了吗？一切都准备好了吗？(5)当陈述部分是当陈述部分是I think/suppose/believe that.结构时，其反意疑问句须与从句的主、结构时，其反意疑问句须与从句的主、谓语保持一致；主句的主语若非第一人称，则反意疑问句与主句的主语相一致。谓语保持一致；主句的主语若非第一人称，则反意疑问句与主句的主语相一致。I dont think he will come，will he？我认为他不会来，是吗？我认为他不会来，是吗？He thinks that she will come，doesnt he？他认为她会来，不是吗？他认为她会来，不是吗？(6)在

11、通常情况下，当陈述部分含有情态动词时，疑问部分应用与前面同样的情态动在通常情况下，当陈述部分含有情态动词时，疑问部分应用与前面同样的情态动词。词。He can speak English，cant he？他会说英语，是吗？We shouldnt go，should we?我们不应该去，对不对？我们不应该去，对不对？it(7)若陈述部分为祈使句，疑问部分通常用_。Please help us，will you?请帮帮我们，好吗？Come with us，will you?同我们一起去，好吗？Dont forget to post the letter，will you?请别忘了寄信。(8)当祈使

12、句为Lets.时，疑问部分总是用 shall we。当祈使句为Let us.时，表示请求，疑问部分用will you。Lets go there together，shall we?我们一起去，好吗？Let us know your address，will you?请把你的地址告诉我们，好吗？will youPractice Complete the conversations with appropriate tag questions or correct answers.1.A:Its not going to rain,is it?B:_.Its a good day for spo

13、rts.A:Then we can play football,_?B:_.We dont have a ball.2.A:Its Sports Day next Thursday,_?B:Youre right,it is.Lets ask Xia Lei if she wants to join a team.A:She likes soccer,_?B:_.But she loves volleyball.She could be in the volleyball team.3.A:Its time for badminton class.Where is the coach?Hes

14、late,_?B:Its been 10 minutes already.He isnt coming,_?A:Cool!We can have a good time.Thats great!B:Shh!A:h no,hes right behind me,_?C:Yes,I am!No,it isntcant weNo,we cant.isnt itdoesnt sheNo,she doesntisnt heis heisnt heUse question tag structure to fill in the blanks1.Miss Li hardly has lunch at sc

15、hool，_？2.Linda ate nothing this morning，_？3.It is impossible，_？4.Usually there are at least two children in a western family，_？5.Nothing is important，_？6.I dont think that you can do it，_？does she did sheisnt itarent there is itcan youMake small conversationsLook at the pictures and use tag question

16、s to make small conversations.Example:A:The sports Day is coming soon,isnt it?B:Yes,it is.They need some volunteers,dont they?A:Yes,they do.We should volunteer to do something,shouldnt we?B:Yes,we should.Lets come to Room 501,Yiwen Building tomorrow and register,shall we?A:OK,its settled.1.Finish off the exercises on Workbook P85.2.Make small conversations with your desk mate using tag questions.