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1、Grammar and usage板块：教学设计板块：教学设计课件课件Unit3Question tagsrevisionHe is very smart, isnt he? 1.肯定的陈述句肯定的陈述句+否定的附加疑问句否定的附加疑问句The bell isnt ringing, is it? 2.否定的陈述句否定的陈述句+肯定的附加疑问句肯定的附加疑问句Lets begin our class, shall we? 3. 祈使句祈使句+附加疑问句附加疑问句结构1.肯定句，+ 否定 （助/系/情+代词）?2. 否定句，+ 肯定 （助/系/情+代词）?3. 祈使句，+ will you / w
2、ont you?notesYoure coming, _ ?John doesnt like tea, _?She cant swim, _ ?This is your car, _ ?Tom saw the film, _ ?Lily is from England, _ ?Lily comes from England, _ ?The students have finished their homework, _ ?注意助动词、情态动词和系动词的选择arent youdoes hecan sheisnt youdidnt heisnt shehavent youdoesnt youQue
3、stion tags can be used when youask for agreement eg: you still go to the gym every day, dont you ?ask for confirmation eg: you still go to the gym every day, dont you?功能a falling intonationa falling intonation回答肯定：Yes, 代词+（助/系/情+代词）.否定：No, 代词+（助/系/情+代词）.Youre coming, arent you?John doesnt like tea,
4、does he?Yes, I am.No, I am not.Yes, he does.No, he doesnt. notesSomeone ought to clean it today, oughtnt they/shouldnt they?notes Nothing can stop us now, cant it? The car has hardly been cleaned for a few days, has it?区别He dislikes reading English aloud in the morning, _?He looked unhappy, _?doesnt
5、 hedoesnt he主句中若含有通过加前缀构成的否定词，尽管表否定意义，仍是肯定句，其后用问句用否定。 Their father has a new car, and they clean it for him, dont they?It must have just rained, and the car is very dirty, isnt it?Only lazy people say theyll work tomorrow, dont they? I think you should enjoy working, shouldnt you? 5.当陈述句部分有表示当陈述句部分有
6、表示“有有”含义的动词含义的动词 have时，附时，附加疑问句部分既可以用加疑问句部分既可以用 have形形式式,也可以用也可以用 do 形式形式Their father has a new car, doesnt he/hasnt he?1. He had his watch repaired, _？2. We usually have breakfast at seven, _？3. He has finished his homework, _?4. Mark has to clean it, _?didnt itdont wehasnt hedoesnt heIt must be hi
7、s turn, isnt it?He must be a doctor, isnt he?It must have just rained, hasnt it?It must have rained yesterday, didnt it?7.陈述部分的谓语是陈述部分的谓语是“ must+ have done”, 表对过去情况的猜时，附加疑表对过去情况的猜时，附加疑问句中需用问句中需用did(有明确的时间状语有明确的时间状语) 或或have/ has（无明确的过去时间状语或（无明确的过去时间状语或有与现在相关的时间状语）。有与现在相关的时间状语）。注意：We must work hard,_?
8、The boys mustnt play with fire,_?We must study all the subjects well,_? (must在这里不表示必须，只表示有必要， 所以不重复must, 要用need.)(当must表示禁止时，反意问句要用may.)must在这里表示必须，mustnt mustnt wemay theyneednt weClean it now, will you?Dont clean it now, will you?Let us clean it now, will you?Lets clean it now, shall we? I am a th
9、ree-good student, _?There is something wrong with your TV set, _?I wish to go to the cinema, _?The girl darent go home alone,_? He used to get up early, _? We ought to make a greater contribution to the world revolution, _?Youd better finish your homework, _?arent I isnt therehadnt youdare shedidnt
10、he/ usednt heshouldnt/oughtnt wemay IStep3 Presentation 1. Please look at the pictures and read the sentences in correct intonation.Wow! I think this dress will make me look slim, wont it? This is really difficult but I feel so strong, dont I? You must get enough sleep to stay healthy, mustnt you? E
11、ating more fruit makes me feel better, doesnt it? Step5 PracticeNow lets do some exercises and you will choose a letter to decide which one you will do.2. Read the dialogue and pay attention to the underlined sentences. A Dirty Car John, Peter and Mark are brothers. Their father has a new car, and t
12、hey clean it for him, _?It must have just rained, and the car is very dirty, _? John is looking at it, and he is talking to Peter.dont theyisnt itJohn: The car has hardly been cleaned for a few days, _?Peter: No, it hasnt. Its very dirty. John: Someone ought to clean it today, _?Peter: Mark has to c
13、lean it, _? It must be his turn, _? John: No, he cleaned it last time. Its your turn.has itoughtnt they/shouldnt theydoesnt heisnt itPeter: No, it isnt. You always clean it after Mark.John: Oh dear, is it really my turn? In that case, Ill clean it tomorrow.Peter: Clean it now,_? Only lazy people say
14、 theyll work tomorrow, _?John: Then Ill clean it the day after tomorrow.Peter: You are lazy. You ought to be ashamed. I think you should enjoy working, _?will youdont theyshouldnt you1.I suppose youre going today, _?A.are you B.do you B.C.dont you D. arent youD2. I wish to shake hands with you, _?A.
15、shall I B. may I C. do I D. will IB3.They have to study a lot, _?A.dont they B. havent theyB.C. did they D.hadnt theyC.4.Im sure to be dirty, _?D.A.Am I B.isnt I E.C.arent I D.am not IAC5.When the car crashed, your brothers escaped being hurt, _?A.didnt they B.did heB.C.did it D.didnt itA6.He has hi
16、s hair cut every month _?A. has he B. hasnt heC. Does he D. doesnt heD7.Your friend needs to come earlier, _?A.does he B. doesnt heB.C. need he D. neednt heB8.-Alice,you feed the bird today, _? -But I fed it yesterday.A.do you B. will youB.C.didnt you D. dont youBCongratulations! You are very lucky.
17、No questions for you.Step6 Consolidation1. Read the following dialogue and complete it with the correct question tags.（SBP51 Part A）HomeworkStep7 Homework 1. Finish workbook exercises on P104. Complete the sentences with the correct question tag. 2. There are some special usages of question tags. Ask students to look up them in some materials .The end !Good staying with you!
