Unit 3 Safety Unit Review 反意疑问句 课件

课件41张PPT。Grammar and usage
Unit3Question tagsrevision
He is very smart, isn’t he?
1.肯定的陈述句+否定的附加疑问句
The bell isn’t ringing, is it?
2.否定的陈述句+肯定的附加疑问句
Let’s begin our class, shall we?
3. 祈使句+附加疑问句结构肯定句，+ 否定 （助/系/情+代词）?
2. 否定句，+ 肯定 （助/系/情+代词）?
3. 祈使句，+ will you / won’t you?
notesYou’re coming, _________ ?
John doesn’t like tea, ________?
She can’t 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aren’t youdoes hecan sheisn’t youdidn’t heisn’t shehaven’t youdoesn’t youQuestion tags can be used when you…ask for agreement
eg: you still go to the gym every day, don’t you ?
ask for confirmation
eg: you still go to the gym every day, don’t 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）.You’re coming, aren’t you?
John doesn’t like tea, does he?
Yes, I am.No, I am not.Yes, he does.No, he doesn’t.

1.当陈述句的主语是everybody,
everyone, someone, no one, nobody,
somebody 或不定人称代词时，附加
疑问句中的主语一般用they.notesSomeone ought to clean it today, oughtn’t they/shouldn’t they?
1.当陈述句的主语是everything, something,
anything, nothing, this, that one,
或不定人称代词时，附加疑问句中的主语
一般用it.notes Nothing can stop us now, can't it? The car has hardly been cleaned for a few days, has it?
2.当陈述句带有seldom, hardly, rarely,
never, few, little, nobody, nowhere,
nothing 等否定词或半否定词时，
附加疑问句的动词用肯定形式区别He dislikes reading English aloud in the morning, ___________?
He looked unhappy, _____________?doesn’t hedoesn’t 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。 3.陈述部分是并列句时，
附加疑问部分的主语应与邻近
分句的主语一致。Their father has a new car, and they clean it for him, don’t they?
It must have just rained, and the car is very dirty, isn’t it?4.陈述句部分是复合句时，附加
疑问句部分的主语与主句主语一致。 Only lazy people say they’ll work tomorrow, don’t they?
注意
陈述部分的主语是I think, I suppose,
I believe 等结构时，附加疑问句部分
与从句中的主语和谓语动词一致。
但要注意否定前置的情况。 I think you should enjoy working, shouldn’t you?
5.当陈述句部分有表示
“有”含义的动词 have时，附加疑问句部分既可以用 have形式,也可以用 do 形式Their father has a new car, doesn’t he/hasn’t he?
注意：陈述句部分的 have
不表示“有”时，附加疑问
句中的动词部分需用do/have形式。
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, _________?didn’t itdon‘t wehasn’t hedoesn’t he
6.陈述部分的动词是must be,
且表示目前情况的猜测时，附加疑问句
部分的动词要用be的人称变化形式。It must be his turn, isn’t it?He must be a doctor, isn’t he?
It must have just rained, hasn’t it?
It must have rained yesterday, didn’t it?7.陈述部分的谓语是“ must+ have done”, 表对过去情况的猜时，附加疑问句中需用did(有明确的时间状语) 或have/ has（无明确的过去时间状语或有与现在相关的时间状语）。注意：We must work hard,___________?
The boys mustn't 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"，mustn’t mustn’t wemay theyneedn't weClean it now, will you?
Don’t clean it now, will you?
Let us clean it now, will you?
Let’s clean it now, shall we?8.在祈使句中，附加疑问句部分
一般用 will you, won’t you, would you,
也可用 can you, can’t you, could you
等，可根据语气选择。如果是Let’s
开头的句子用shall we. 。 I am a three-good student, _______?
There is something wrong with your TV set, _________?
I wish to go to the cinema, _______?
The girl daren't go home alone,_________?
He used to get up early, _______________?
We ought to make a greater contribution to the world revolution, ___________________?
You’d better finish your homework, _________?aren't I isn't therehadn’t youdare shedidn't he/ usedn't heshouldn't/oughtn't 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, won’t it? This is really difficult but I feel so strong, don’t I? You must get enough sleep to stay healthy, mustn’t you? Eating more fruit makes me feel better,
doesn’t it? Step5 Practice
Now let’s 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 they 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.don’t theyisn’t itJohn: The car has hardly been cleaned
for a few days, _______?
Peter: No, it hasn’t. It’s very dirty.
John: Someone ought to clean it today,
_________________________?
Peter: Mark has to clean it, __________?
It must be his turn, ___________?
John: No, he cleaned it last time. It’s
your turn.has itoughtn’t they/shouldn’t theydoesn’t heisn’t itPeter: No, it isn’t. You always clean it
after Mark.
John: Oh dear, is it really my turn? In that
case, I’ll clean it tomorrow.
Peter: Clean it now,________? Only lazy
people say they’ll work tomorrow,
___________?
John: Then I’ll clean it the day after
tomorrow.
Peter: You are lazy. You ought to be
ashamed. I think you should enjoy
working, _______________?will youdon’t theyshouldn’t youI suppose you’re going today, ______?
are you B.do you
C.don’t you D. aren’t you
D2. I wish to shake hands with you, _______?
shall I B. may I C. do I D. will I
B3.They have to study a lot, ____?
don’t they B. haven’t they
C. did they D.hadn’t they
4.I’m sure to be dirty, ______?
A.Am I B.isn’t I
C.aren’t I D.am not IAC5.When the car crashed, your brothers escaped being hurt, ___?
didn’t they B.did he
C.did it D.didn’t itA6.He has his hair cut every month _______?
A. has he B. hasn’t he
C. Does he D. doesn’t heD7.Your friend needs to come earlier, _______?
does he B. doesn’t he
C. need he D. needn’t heB8.----Alice,you feed the bird today, ______?
----But I fed it yesterday.
do you B. will you
C.didn’t you D. don’t youBCongratulations! You are very lucky.
No questions for you.Step6 Consolidation
1. 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 .Thank youThe end !Good staying with you!