内容正文:
Unit 3
Sports and Fitness
Discovering Useful Structures
1
1.附加疑问句的组成
附加疑问句由两部分组成:前一部分是一个陈述句,后一部分是一个简短的疑问句,由助动词/情态动词/be动词+主语(代词形式)构成。两部分的人称和时态应保持一致。
附加疑问句(tag question)
可以先用几个简单的句子引入,初中学过,主要以综合学习为主。
(1)肯定式陈述部分+否定式疑问部分
She was ill yesterday, wasn’t she?
如果陈述部分的动词带有否定前缀un-,in-,im-,dis-或后缀-less,该陈述部分当作肯定句处理,附加疑问部分一般仍用否定形式。
Tom dislikes the book, doesn’t he?
(2)否定式陈述部分+肯定式疑问部分
He can’t ride a bike, can he?
陈述部分有no,nothing,nobody,never,few,seldom,hardly,rarely,little等否定或半否定含义的词时,疑问部分用肯定式。
He can hardly write his name, can he?
完成下列附加疑问句
①There’s hardly any milk in the bottle, ___________?
②He disagrees with his parents, ______________?
③These tools are useless now, _______________?
is there
doesn’t he
aren’t they
2.附加疑问句的回答
(1)当陈述句部分是肯定结构,附加疑问句部分用否定式提问时,如果事实是肯定的,就用yes,事实是否定的,就要用no。
—He likes playing football, doesn’t he?
—Yes, he does. /No, he doesn’t.
(2)当陈述句部分是否定结构,附加疑问句部分用肯定式提问时,回答的yes要译成“不”,no要译成“是”。
—His sister didn’t attend the meeting, did she?
—Yes, she did. /No, she didn’t.
根据句意补全句子
①—You’ve never seen dinosaur eggs, have you?
—_____________. How I wish to visit the Dinosaur World.
②—They don’t work hard, do they?
—___________. They are the most hardworking students in our class.
No, I haven’t
Yes, they do
3.主语的选择
陈述部分主语 附加问句主语 例句
one(泛指人) one/he/you One can’t be too careful, can one/he/you?
this, that, 非谓语形式 it That isn’t correct, is it?
Seeing is believing, isn’t it?
these, those they These are your friends, aren’t they?
there be there There’s no help for it, is there?
one如果指物,主语用it
this/that/these/those指物时,主语用it/they。指人时,主语用相应的人称代词:That isn’t your teacher, is he/she?
陈述部分主语 附加问句主语 例句
everything, anything, something, nothing it Nothing happened to him, did it?
Everything seems all right now, doesn’t it?
everyone(body),
anyone(body),
someone(body),
no one(nobody) he/they Nobody likes to be laughed at, does he/do they?
主语由neither...nor...或both...and...连接 复数 Neither you nor I am wrong, are we?
Both you and he are doctors, aren’t you?
完成下列