這是高中的語(yǔ)法,考查的是否定前置的疑問(wèn)句形式,我先來(lái)說(shuō)一下否定前置的情況吧：
1) 將think,believe,suppose,expect,fancy,imagine等動(dòng)詞后面賓語(yǔ)從句的否定詞轉(zhuǎn)移到主句中,即主句的謂語(yǔ)動(dòng)詞用否定式,而從句的謂語(yǔ)動(dòng)詞用肯定式.
I don't think I know you.我想我并不認(rèn)識(shí)你.
注意：若謂語(yǔ)動(dòng)詞為hope,賓語(yǔ)從句中的否定詞不能轉(zhuǎn)移.
I hope you weren't ill.我想你沒(méi)有生病吧.
2) 將seem,appear 等后的從句的否定轉(zhuǎn)移到前面.
It doesn't seem that they know where to go.
看來(lái)他們不知道往哪去.
3) 有時(shí)將動(dòng)名詞,介詞短語(yǔ)或整個(gè)從句的否定轉(zhuǎn)變?yōu)閷?duì)謂語(yǔ)動(dòng)詞的否定.
I don't remember having ever seen such a man.
我記得從未見(jiàn)過(guò)這樣一個(gè)人.(not否定動(dòng)名詞短語(yǔ) having…)
It's not a place where anyone would expect to see strange characters on the street.
在這里,人們不會(huì)想到在街上會(huì)碰上陌生的人.
(anyone 作主語(yǔ),從句中的謂語(yǔ)動(dòng)詞不能用否定形式.)
上面三種較常用!
然后我再說(shuō)一下變換成疑問(wèn)句的情況,
(1)當(dāng)主句的主語(yǔ)為第一人稱(chēng)時(shí),其后的簡(jiǎn)短問(wèn)句應(yīng)與從句相一致.例如：
I expect our English teacher will be back this weekend,won't she/he?
We suppose you have finished the project,haven't you?
值得注意的是,當(dāng)這些動(dòng)詞后接的賓語(yǔ)從句的否定轉(zhuǎn)移到主句時(shí),其仍屬否定句,故其后的簡(jiǎn)短問(wèn)句應(yīng)用肯定式,而非否定式.例如：
I don't believe that he can translate this book,can he?
We don't imagine the twins have arrived,have they?
此類(lèi)句子的回答同"前否后肯"型反意疑問(wèn)句一樣,如上述后一個(gè)句子,若雙胞胎已經(jīng)到了,則回答為"Yes,they have."；若尚未到達(dá),使用"No,they haven't.".
(2)當(dāng)主句的主語(yǔ)為第二、三人稱(chēng)時(shí),其后的簡(jiǎn)短問(wèn)句則應(yīng)與主句相一致（此時(shí),否定只看主句,與從句無(wú)關(guān)）.例如：
Your sister supposes she needs no help,doesn't she?
You thought they could have completed the project,didn't you?
They don't believe she's an engineer,do they?
She doesn't expect that we are coming so soon,does she?
(3)但如果主句的時(shí)態(tài)是過(guò)去時(shí)等等,疑問(wèn)句應(yīng)和主句的人稱(chēng)時(shí)態(tài)保持一致.
舉個(gè)例子,she didn't think it was beautiful.did she?