Question

一道关于反问疑问句的选择题,详细解答一下为什么要这么选 谢谢

you see,there is no light in their room.I don't think they have returned home,_____?
A.haven't B.did they C.have they D.didn't they
选哪一个?为什么?请详细,解答一下,谢谢

Answer 1

选C。

首先，反意疑问句的陈述部分为I(We) think(believe, suppose, consider) + that从句时，问句部分的动词及主语与that从句内的动词和主语保持一致。如：
①I think that he has done his best, hasn’t he?
②We think that English is very useful, isn’t it? （不用don’t we?）

其次，时态要一致，前面是have returned，是现在完成时。排除B、D。

第三，I don't think发生了否定前移现象。其实是I think they haven't returned home. they haven't returned home是否定，后面的反意疑问句要用肯定。

Answer 2

好长时间没有看外语了，我先C 如果对的话，你看下我的解释；
I don't think they have returned home,_____?变式：
I think they have not returned home,_____?根据反问的语法
应该是have not returned(如果是选B，就是not returned反问)这儿要反问，所以先C
如果不对的话，就算了

Answer 3

you see,there is no light in their room.I don't think they have returned home,__C_?
A.haven't B.did they C.have they D.didn't they
I think that +从句：后面的反意问句，时态和从句一致。用否定形式。
I don't think that +从句：后面的反意问句，时态和从句一致。用肯定形式。