1. 当陈述部分的主语是I,而句子又用来征询对方的意见时,附加疑问句中的主语用you。如:
I find English very interesting, dont you?
I dont 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,具有否定概念时。如:
Somebody phoned while I was out, didnt they?
Everyone enjoyed the party, didnt 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。如:
Everything seems all right now, doesnt it?
Nothing is kept in good order, is it?
Something must be done to stop pollution, isnt 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。如:
This is important, isnt it?
That isnt correct, is it?
These are your friends Tom and Jack, arent 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。如:
One cant be too careful, can one?或can you?
One should do his duty, shouldnt he?
6. 如果陈述部分用Im…结构,附加疑问部分一般用arent I。如:
I am strong and healthy arent I。
7. 当陈述句为there be结构时,附加疑问句中的主语也用there。如:
Theres no help for it, is there?
Theres something wrong, isnt there?
8. 陈述部分带有seldom, hardly, never, rarely, few, little, nowhere, nothing等否定词或半否定词时,附加疑问部分的动词用肯定形式。如:
Bob rarely got drunk, did he?
Few people know him, do they?
She seldom goes to the cinema, does she?
如果陈述部分的否定词带有否定前缀,那么,该陈述部分作肯定处理,附加疑问部分一般仍用否定形式。如:
He was unsuccessful, wasnt he?
Tom dislikes the book, doesnt he?
9. 当陈述部分为主从复合句时,附加疑问部分一般应与主句的主语和谓语动词保持对应关系。如:
She says that I did it, doesnt she?
I told them not everybody could do it, didnt I?
但当陈述部分的主语是I,谓语是think, believe, suppose, expect这类动词时,附加疑问部分则往往与从句中的主語和谓语动词保持对应关系,但要注意否定的转移。
I suppose that hes serious isnt he?
I dont think she cares, does she?
10. 当陈述部分是并列句,附加疑问句则需和就近的分句的主语和谓语一致。如:
Xiao Lin has been writing letters all afternoon but he should finish them now, shouldnt he?
11. 在由“祈使句+附加疑问”构成的附加疑问句中,附加疑问部分一般用will you, wont you, would you,有时也可用can you, cant you, why dont you, could you等。如:
Dont open the door, will you?
Give me some cigarettes, can you?
Take a rest, why dont you?
但是,以lets开头的祈使句,附加疑问部分用shall we;以let us开头的祈使句,如果含义是allow us,不包括听话人在内,疑问部分用will you。如:
Lets have a basketball match this afternoon, shall we?
Let us go out for a rest, will you?
12. 当陈述部分带有情态动词must表示“必须”时,疑问部分用mustnt。如:
You must work hard next term, mustnt you?
I must answer the letter, mustnt I?
但若表推测这层含义时,不能用must,而要根据陈述部分的不定式结构(即must之后的动词)以及含义采用相应的动词形式。如:
You must have made a mistake, havent you?
They must have seen the film last week, didnt they?
He must be in the library, isnt he?
13. 当陈述部分含有情态动词used to时,疑问部分可用usednt或didnt。如:
The old man used to smoke, didnt he?或usednt he?
Tom used to live here, usednt he?或didnt he?
14. 当陈述部分带有情态动词ought to时,疑问部分用oughtnt或shouldnt。如:
He ought to know the answer, oughtnt he?
We ought to read this book, oughtnt we?或shouldnt we?
15. 当陈述部分含有had better时,疑问部分用had。
如:Youd better finish your homework now, hadnt you?
16. 感叹句后的附加疑问句的谓语动词需用be的现在时,且常用否定形式。如:
What a clever boy, isnt he?
What a lovely day, isnt it?
17. 陈述句子中的主语为动词不定式短语、动名词短语或其他短语时,疑问部分的主语通常用it。如:
Learning how to repair motors takes a long time, doesnt it?
Between six and seven will suit you, wont it?
Where to hold the meeting has not been decided, has it?
18. 在口语和非正式文體中,为了加强语气,只是表示某种惊奇、怀疑、反感、讽刺等感情而并不是为了寻求回答,这时前后两部分的肯定、否定是一致的。如:
Oh, he is a writer, is he?
Youll not go, wont you?
19. 陈述句中的谓语动词是wish,表示愿望时用may,且用肯定形式。如:
I wish to have a chance to learn English, may I?
20. 当陈述部分带有表示“所有”含义的动词have(has)时,疑问部分既可用have形式,也可用do形式。如:
You have a new bike, havent you(或dont you)?
She doesnt have any money in her pocket, does she?