英语语法：do在强调句和疑问句表时态,其句子用一般现在时Ididseehimlastnight.问：在这个句子里若存在从句,时态是否也应该用一般现在时?Didyouseethatadogis(was)chasedbyacatlastnight?

Question

英语语法：do 在强调句和疑问句表时态,其句子用一般现在时 I did see him last night.问：在这个句子里
若存在从句,时态是否也应该用一般现在时?
Did you see that a dog is(was) chased by a cat last night?

Answer 1

不是,that 引导的是一个宾语从句
要保持前后一致
Did you see that a dog was chased by a cat last night?
既然是从句,that 后面就是一个句子.有自己的句子结构,只是这个句子充当了 see 的宾语
宾语从句中用一般现在时的是：
宾语从句中所说的是一个客观事实或真理.
The teacher told us that the earth goes around the sun.