Question

高中英语特殊句式三道比较题

1.The employee might have been dismissed by the employer last month,______ ?
A.hasn't he B.didn't he C.wasn't he D.mightn't he
2.John told you that there wasn't anyone in the room at that time,______ ?
A.was there B.wasn't there C.didn't he D.did he
3.Sarah had her washing machine repaired the day before yesterday, ____ she?

A. had B. did C. hadn't D. didn't
答案为CCD.
第一题不知道逗号左边怎么还原，为什么还原成was dismissed，而不是had，还有，为什么不能像第二题的考点直接选成B呢？
第二题根据at that time即可判断
第三题为什么不选C，剧中的had是助动词吗

Answer 1

其实反义疑问句不需要像数学题一样一句一句扣，如果你一定要把句子还原才能看明白：
1、表示推断，相当于"I think"从句，所以是I think that the employee was dismissed by the employer last month，反义疑问句对从句反义，所以是wasn't he
2、与1句正好相反，1句的主句是think，而2句是tell，不表示推断，所以反义疑问句对主句反义，用didn't he
3、had这里不作为助动词出现，而是一个实义动词，所以是didn't she。如果句子是这样：Sarah had repaired her washing machine the day before yesterday，那就应该是hadn't she

说了一大堆不知道你能不能明白

Answer 2

1. might  have 有两种情况，若句中没有时间状语，则反义疑问句用完成时；若有时间状语，则反意疑问句用过去时。题中出现了last time，所以用过去时

2. 两点：主句人称是第三人称，反义疑问句对主句提问；主句是过去时

3. had在这里是实意动词，（have sth done是 某人让某物被做 的意思），它的助动词应该是do