Unit 3 Discovering Useful Structures （Tagquestions） ppt课件-（2019）新人教版高中英语必修第一册.pptx

1、Tag questionsUNIT3 Discovering Useful StructureA: Therell be an E-sports event tomorrow.B: Ive heard of it. Your favorite team is coming, isnt it?A: Yes, it is. Lets buy some tickets, shall we?B: But I have some work to do. You should go. Send me some photos, will you? A: Sure I will. Role-playRole-

2、playAct out the conversation between two fansTo confirm(证实）To requestTo suggestWhatre purposes of tag questions?StructureStructureWhat makes up a tag question?You cant swim, _?Your mother often gives you money, _?The boy was found by the police, _?can youdoesnt shewasnt he助动词be 动词情态动词表示主语的代词Basic St

3、ructureBasic StructureHow to ask a tag question?Doing exercise will do you good, _?1. 肯定式陈述 + 否定式疑问You are going to the gym with me, _?arent youwont itThere is a swimming pool, _?isnt thereBasic StructureBasic StructureHow to ask a tag question?They cant finish it by Friday, _?His school is not far

4、from here, _?is itcan they2. 否定式陈述 + 肯定式疑问To learn German well isnt easy, _?is itBasic StructureBasic StructureHow to ask a tag question?She has never been to Paris, _?Nobody saw him walk into the room, _?did theyhas she3. 含否定词的陈述 + 肯定式疑问带有否定含义的词：no, nothing, nobody, nowhere, never, few, little, sel

5、dom, hardly, rarelyBasic StructureBasic StructureHow to answer a tag question?A: The 29th Olympic Games were held in Beijing, werent they?B: _. Yes, they were.A: Jordan started to play basketball in college, didnt he?B: _. He first started at senior high school.A: David has been to a boxing match, h

6、asnt he?B: _. He always watches boxing on TV. No, he didnt.No, he hasntA: You cant cook, can you?B: _. In fact, Im good at cooking. Yes, I can可看作回答一般疑问句 3.谓语动词是have1.主语问题4.谓语含特殊结构5.谓语含must2.祈使句(没有主语）6.含从句特殊情况：当陈述句RulesRulesI. 主语问题1. 当陈述部分是Im时，疑问部分用arent I： Im wrong, _?Im older than you, _?Im not the

7、 last one, _?arent I arent I am I 2. 当陈述部分是I wish时，疑问部分用may I： I wish to have a look, _?may I RulesRules一. 主语问题3. 当陈述句主语是somebody, someone, everyone, everybody, no one, nobody等复合不定代词或those, these等指示代词时，疑问句主语为they；4. 当陈述句主语是something, anything, nothing, everything等不定代词或that, this等指示代词时，疑问句主语为it.Every

8、one enjoyed the party, _?No one was late, _?Everything is ready, _?Nothing can stop you, _?were they didnt they isnt it can it RulesRules二.陈述部分为祈使句1. 肯定祈使句，表示请求可用will you，表示提醒可用wont you：Open your book, _?Please come here this evening, _?Stop talking, _?2. 否定祈使句，表示请求，用will you：Dont make any noise, _?

9、 Dont forget to write me a letter, _?will youwill youwont youwill youwill youRulesRules二.陈述部分为祈使句Lets sing a song together, _?Let us go for a walk, _? Let me have a try, _?Let him join us, _?3. Lets 包括说话人和听话人双方在内，含有催促、建议或请对方一起行动的意思，用shall we；4. Let us (me/him/her/them.) 指请求对方允许自己（他人）做某事，用will you.sh

10、all wewill youwill youwill youRulesRules三.陈述部分谓语动词是have1. 一般情况下，用do的适当形式：You all had a good time, _? You had milk and bread for breakfast, _? He doesnt have any sisters, _?2. 当have表示“有”，两种形式皆可： He hasnt any sisters, _?didnt youdidnt youdoes hehas he3.陈述句有 have/had to，疑问部分常用dont/didnt: We have to get

11、 there at eight tomorrow, _?They had to cross the busy street, _?RulesRules三.陈述部分谓语动词是havedont wedidnt they1. 陈述句有 ought to 疑问部分shouldnt / oughtnt.2. 陈述句有 used to 疑问部分didnt.3. 陈述句有 had better 疑问部分hadnt.He ought to know what to do, _?She used to take pictures there, _? Youd better read it by yourself

12、, _?RulesRules四.含有特殊结构oughtnt he? / shouldnt hedidnt she hadnt youRulesRules五.陈述部分含有情态动词must1. 当must表示必须，疑问部分用 mustnt 或neednt： You must go home now, _? He must work hard today, _? 2. 当陈述句使用mustnt表示禁止，疑问部分用must或may：You mustnt park the car here, _?mustnt youmustnt hemust youRulesRules五.陈述部分含有情态动词must3

13、. 当must表示推测，疑问部分根据must后的动词推测： 对现在的情况推测：He is so tall. He must be the tallest in the class, _?Its ten oclock. They must be waiting outside, _?She must come from the north, _?arent theydoesnt sheisnt heRulesRules五.陈述部分含有情态动词must 对过去的情况推测：有明确时间状语，用一般过去式didnt：He must have finished it yesterday, _?The ro

14、om must have been cleaned last night, _? 没有明确时间状语，强调动作完成，用现在完成时havent/hasnt：You must have told her about it, _?She must have arrived by now, _?didnt hewasnt ithavent youhasnt sheRulesRulesV.陈述部分含有情态动词dare/need3. 当must表示推测，疑问部分根据must后的动词推测：She looks pale. She must be ill, isnt she?You must know the t

15、ruth, dont you?RulesRules六.陈述部分含主语从句或并列复合句当陈述句为I/we think(believe, suppose, expect, imagine) that.等时，疑问部分主语通常与从句保持一致：I dont think he is right, _?We believe she can do it better, _? Notes: 如果主语不是第一人称，则疑问句主语与主句保持一致。 He thought she was wrong, _? She said they would visit Japan next month, _?didnt hedid

16、nt shecant sheis heRulesRulesVII.陈述部分含主语从句或并列复合句1. 并列复合句疑问部分，谓语动词根据邻近从句的谓语而定：I have told Tom the time of their flight, so he should have arrived at the airport now, shouldnt he? 2. 带有定语从句、宾语从句的主从复合句，疑问部分谓语根据主句的谓语而定：1. Mary seldom goes out alone in the evening, _?2. Nothing will make him give in, _?3

17、. Nobody except me knows French in my class, _?4. None of them arrived on time, _?5. Dont be late again, _?6. Let them play tennis after work, _?7. I dont think she is fond of music, _?8. Hed like to go fishing this afternoon, _?9. What she said is wrong, _?does shewill itdo theydid theywill youwill

18、 youis shewouldnt heExercisesExercisesisnt it9.”You dont want to be a dentist, do you?” “_. ”A. Yes, I dont B. No, I do C. I dont want D. No, I dont10. He used to live in the country, _?11. Youd better go to bed early, _?12. Let us visit the new museum, _?13. You must have learned English over 10 ye

19、ars, _?14. She couldnt believe John lied to her, _?15. It rained so suddenly that they must have got wet just now , _?didnt hehadnt youwill youhavent youcould shedidnt they高考真题回放1. I told them not everybody could run as fast as you did, _?A. could he B. didnt I C. didnt you D. could they2. There is

20、little doubt in your mind that he is innocent, _?A. is there B. isnt there C. is he D. isnt he3. I spent two weeks in London last summer.Then you must have visited the British Museum during your stay, _ you?A. mustnt B. havent C. didnt D. hadnt 当主句“情态动词+have done”后面有过去时的时间状语，就对一般过去时反问；如果句子没有一般过去时的时间

21、状语，就对现在完成时中的助动词have/has提问。 1. You must have learned English over 10 years, have you? over 10 years表示一段时间，不是时间点，不属于一般过去时的时间状语，因此对have/has提问 2. It rained so suddenly that they must have got wet just now, didnt they? by now属于一般过去时的时间状语，表示”刚刚,因此对一般过去时提问 3. I spent two weeks in London last summer. Then you must have visited the British Museum during your stay, didnt you? during your stay指去年在哪里的时间，是一般过去时的时间状语，所以对一般过去时提问，句中动词是visit，所以使用didntp40. Ex2p40. Ex2Complete the conversations. Yes, she iscant weisnt itNo, we cantdoesnt sheYes, she doesisnt heis heisnt he