人教版高中英语必修一《Sports and Fitness》PPT教学课件，共28页。
Lead-in
Compare the following sentences and find out what kind of sentence structures they are.
Everything seems all right now, doesn't it?
This is important, isn't it?
Give me some cigarettes, will/won't you?
Practise in pairs
Use the tag questions to role-play one of the situations below.
The Sports Day is coming soon, isn't it?
Yes, it is. They need some volunteers, don't they?
Yes, they do…
Learn about the tag questions
Tag Questions(反意疑问句)
反意疑问句又叫附加疑问句，是在陈述句后，对陈述句所叙述的事实提出的疑问。其基本结构有两种：
一是“肯定陈述句＋简略否定问句”；
二是“否定陈述句＋简略肯定问句”或“祈使句部分（肯定）+疑问部分（肯定）”。
一、附加疑问句的回答
反意疑问句后一部分的主谓与前一部分的主谓要保持人称及助动词等方面的一致。这种疑问句的回答要根据事实，肯定的用“Yes”。否定的用“No,”。
It looks like rain, doesn't it?
He doesn't need to work so late, does he?
二、回答附加疑问句要注意的问题
前一部分是一个陈述句，后一部分是一个简单的问句，完成后一部分简单问句时，要根据前面陈述句的动词时态和人称来选择适当的助动词进行提问，前后两部分的人称和动词时态要保持一致，如果前一部分用肯定式，后一部分一般用否定式；反之，前一部分为否定式，后一部分要用肯定式，即“前肯定后否定，前否定后肯定”。
三、反意疑问句的几种特殊情况
1. 当陈述部分的主语是I，而句子又是用来征询对方的意见时，附加疑问句中的主语用you。
I find English very interesting, don't you?
I don't like that film, do you?
2. 当陈述部分的主语是everybody, everyone, someone, nobody, no one, somebody等合成代词时，附加疑问句中的主语通常用they。但亦可用he，尤其是nobody, no one等作主语，具有表示否定意义时。
Somebody phoned while I was out, didn't they?
Everyone enjoyed the party, didn't they?
Nobody wants to go there, does he?
3. 当陈述部分的主语是不定代词everything, nothing, anything, something时，附加疑问句中的主语一般用it，不用they。
Everything seems all right now, doesn't it?
Nothing is kept in good order, is it?
Something must be done to stop pollution, isn't it?
4. 当陈述部分的主语是指示代词this, that或these, those时，附加疑问句中的主语分别用it和they。
This is important, isn't it?
That isn't correct, is it?
These are your friends Tom and Jack, aren't they?
5. 如果陈述部分是以代词one作主语，附加疑问句中的主语在正式场合用one，非正式场合用you, 在美国英语中，在非正式场合还可以用he。
One can't be too careful, can one?( 或can you?)
One should do his duty, shouldn't he?
6. 如果陈述部分用I'm…结构，附加疑问部分一般用aren't I。
I am strong and healthy, aren't I?
7. 当陈述句为there be结构时，附加疑问句中的主语也用there。
There's no help for it, is there?
There's something wrong, isn't there?
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关键词：Sports and Fitness PPT课件免费下载，.PPTX格式；
