英语上的反意疑问句怎么理解

反意疑问句是高考英语常考的考点之一.它的一般形式比较简单,但有相当多的特殊形式,同学们必须认真掌握.
1.以 Let's 开头的祈使句,附加疑问句用“ shall we?”.例如：
Let's go,shall we?
2.以 Let us 开头的祈使句,附加疑问句用“ will you?”.以 Let me 开头的祈使句,附加疑问句用“ shall ”.例如：
Let us go out for a walk,will you?
Let me give you a hand,shall I
3.在含有 used to 的陈述句后面,附加疑问句用“ didn't+ 主语?”或“ usedn't+ 主语?”.例如：
You used to go to school on foot,didn't you （或 usedn't you
4.若陈述句含有“ must have+ 过去分词 + 具体的过去时间”时,它如果表示对过去情况的猜测,其附加疑问句用“ didn't+ 主语?”.例如：
The boy must have got there yesterday,didn't he?
5.I'm 的反意疑问式是“ am I not?”或“ aren't I ”.例如：
I am a student,am I not （或 aren't I ）
6.若陈述句中含有 have to 时,附加疑问句用“ don't+ 主语?”；陈述句中含有 had to 时,附加疑问句用“ didn't+ 主语?”.例如：
We have to study hard,don't we?
Tom had to stop smoking,didn't he?
7.如果陈述句是复合句,且主句的主语和谓语是“ I think,I guess,I suppose,I believe,I imagine ”等时,附加疑问句的人称和数要与从句的人称和数保持一致.如果主句的主谓语不是上述结构,则附加疑问句的人称和数要与主句的人称和数保持一致.例如：
I don't think the boy is a student,is he?
He believed Mary could do it well,didn't she?
8.如果陈述句的主语是“ none of+ 名词”,附加疑问句的人称和数要与该名词保持一致.例如：
None of the chalk is yellow,is it?
None of the boys are university students,are they?
9.如果陈述句的主语是 something,anything,everything,nothing 等不定代词时,附加疑问句的主语用 it .例如：
Everything must be in order,mustn't it?
10.如果陈述句的主语是 no one,none,nobody,nothing 等含有否定意义的不定代词时,附加疑问句要用肯定式.例如：
No one was there that day,was he/ were they?
11.如果陈述句的主语是 someone,anyone,everyone,no one,somebody,anybody,everybody,nobody 时,附加疑问句的主语用 they ,但也可以用 he .例如：
Everyone likes him,don't they （或 doesn't he
12.如果陈述句的主语是动词不定式、动名词、主语从句或指示代词 this,that ,附加疑问句的主语用 it .如果陈述句的主语是指示代词 these,those ,附加疑问句的主语则用 they .例如：
This is your book,isn't it?
Seeing is believing,isn't it?
Whether he will come to the party or not is up to him,isn't it?
These are not yellow,are they?：