反意疑问句是附加在陈述句之后, 对所陈述内容提出质疑或通过反问以强化陈述内容的一种疑问句。
正常情况下, 如果陈述部分是肯定的, 附加部分用否定形式, 如果陈述部分是否定的, 附加部分用肯定形式。 附加部分的助动词和代词应与陈述部分一致。
e.g. They are students, aren't they?
They aren't students, are they?
1.在由“祈使句+疑问部分”构成的反意疑问句中，疑问部分通常用will you
Pass me the dictionary, will you?把词典递给我好吗？
Don’t do that again, will you?别再做那件事好吗？
在含有let的祈使句后的反意疑问部分，如果let的宾语us包括听者（常写成let’s）时用shall we，
不包括听者（常写成let us）时用will you。Let的宾语是me时,要根据意思用will you或may I。let的宾语是第三人称时用will you。
Let’s go for a walk , shall we?我们去散步好吗？
Let us do it by ourselves, will you?让我们自己做这件事好吗？
Let me have a look at your photo, will you?（你）让我看看你的照片好吗？
Let him speak first, will you?（你）让他先说好吗？
2. 当陈述部分含有 must 时, 要注意 must 的含义。 表示 "一定要, 必须"时, 反意疑问句附加部分用 mustn't 或 needn't
e.g. He must work hard at physics, mustn't he?
You must renew the book, needn't you?
表示推测 "一定是, 必定是"时, 反意疑问句附加部分有下列情况:
A). 当陈述部分有 must be ...时, 反意疑问句附加部分用 be 的现在时态。
e.g. He must be very tired, isn't he?
He must be working hard at the office, isn't he?
B). must have + 过去分词 表示对过去的推测
a). 单纯表示对过去的推测, 与现在无关, 反意疑问句附加部分用过去式。
b). 表示对过去的推测且影响到现在或持续现在, 反意疑问句附加部分用现在完成式。
e.g. He must have come yesterday, didn't he?
You must have studied English for years, haven't you?
He must have lived here at least ten years, hasn't he?
3．当陈述部分的主语为nothing, anything, everything等不定代词时，反意疑问部分的主语用it。
Nothing could prevent him from going there, could it?什么也阻止不了他去那里，对吗？
如果陈述部分的主语为nobody, somebody, none, someone, no one, anyone, anybody, everyone等不定代词时，反意疑问部分的
主语用they或he。
Somebody took my umbrella away yesterday, didn’t they/he?昨天有人那走了我的雨伞，是吗？
4． 当陈述部分带有that从句作宾语时，反意疑问部分应与主句的主语和谓语一致。陈述部分是I think, I suppose, I believe时，
反意疑问部分应与that从句的主语和谓语一致。
He said his father had been sent to hospital, didn’t he?他说他父亲已送去医院了，是吗？
I think he’ll come to help us with our work, won’t he?我想他会来帮助我们工作，是吗？
I believe you have met each other before, haven’t you?我相信你们以前彼此见过面，对吗？
I suppose they are waiting for us now, aren’t they?我猜想他们正在等我们，是吗？
5． 在英语口语中，由neither…nor…, neither of来连接主语时，反意疑问部分的主语用they。
Neither of them knew his address, did you?他们没人知道他的地址，对吗？
6． 如果陈述部分是I am…，反意疑问部分用aren’t I。
I’m late, aren’t I?我迟到了，是不是？
7． 当陈述部分为感叹句时，反意疑问部分用否定形式，主语仍与感叹句的主语一致。
What a fine day today, isn’t it?今天天气多么好，是吗？
8． 当陈述部分含有wish时，反意疑问部分的助动词用may。
I wish to use your dictionary, may I?我想用你的词典，行吗？
9.当陈述部分含有you’d better, you’d like to时，反意疑问部分分别用hadn’t you, wouldn’t you。
You’d better take his advice, hadn’t you?你最好还是听他的建议，好吗？
You’d like to go to the party, wouldn’t you? 你想去聚会，是吗？
10. 当陈述部分含有have to时，反意疑问部分的助动词应根据have的变化，分别用don’t, doesn’t, didn’t。
I have to take this medicine, don’t I?我必须吃这药，是吗？
11. 当陈述部分是there be句型时，反意疑问部分用be there。
There is something wrong with the machine, isn’t there?机器出了毛病，是吗？
There is no time left, is there?没有时间了，是不是？
12．当陈述部分含有seldom, hardly, scarcely, no, never, rarely, few, little, nobody, nowhere等否定动词时，反意疑问部分的动词用肯定式。
He hardly speaks English, does he?他几乎不会说英语，是吧？
She seldom lends her money to others, dose she?她很少把钱借给别人，是吗？
13．当陈述部分的主语是从句、不定式、动名词或词组时，反意疑问部分的主语通常用it。
What he said at the meeting is very important, isn’t it?他在会上所说的很重要，对吗？
To master a foreign language isn’t easy, is it?掌握一门外语不容易，是吗？
Swimming in rivers is a good sport, isn’t it?在江河里游泳是一项很好的运动，是吗？
14．如果陈述句部分含有un-, in-, im-, ir-, dis-等否定前缀构成的派生词时，该陈述句部分仍作肯定处理，疑问部分用否定形式。
He dislikes chicken, doesn’t he他不喜欢吃鸡肉，是吗？
15. 感叹句的反意疑问句附加部分用 to be 的一般现在时的否定式。
e.g. What fine weather, isn't it?
How hard she works, isn't she?
16. 陈述部分含有 need, dare 的反意疑问句
A). 当 need , dare 为普通动词时, 反意疑问句附加部分用助动词 do 的某种形式。
e.g. He needs help, doesn't he?
B).当 need , dare 为情态动词时, 反意疑问句附加部分用其本身。
e.g. We need do it again, needn't we?
He dare not say so, dare he?
17. 当陈述部分有 used to...时, 反意疑问句附加部分用 didn't/ usedn't/ used + 主语 + not?
e.g. She used to visit her uncle on holidays, didn't she?
She used to visit her uncle on holidays, usedn't she?
He used to play football when he was young, used he not?
18. 当陈述部分有 ought to时, 反意疑问句附加部分用
ought 或 should.
e.g. We ought to start at once, oughtn't we?
We ought to start at once, shouldn't we?
Such things ought not to be allowed, ought they?
Such things ought not to be allowed, should they?
19. 当陈述部分谓语有 would rather 或 would like to 时, 反意疑问句附加部分用 wouldn't + 主语。
e.g. He would rather read the text ten times than recite it, wouldn't he?
You'd like to have some bananas, wouldn't you?