第1个回答 2013-10-13
think后面的句子是宾语从句,从句的时态要和主句保持一致,主句的谓语是过去时thought,从句的谓语也要相应地改成would,而不能用will.但是也有例外.当从句的内容讲的是客观真理,那么从句的时态不用改成相应的过去式.比如:The teacher told us that the earth goes round the sun.(老师告诉我们地球围绕太阳转.)主句的谓语是过去式told,但是从句的谓语是现在时goes.因为老师讲的是客观真理.
2)状语从句:When I came in, they were having dinner.(我进去的时候,他们正在吃晚饭.) When they came in是时间状语从句.
If it rains tomorrow, I won't go there.(如果明天下雨,我就不去那儿了.)If it rains tomorrow是条件状语从句.
He didn't go to school because he was ill.(他没去上学,因为他生病了.)because he was ill是原因状语从句.
主语从句: Why he left isn't known to any of us.(他为什么离开我们都不知道.)Why he left是主语从句.
Whether she comes or not doesn't concern me.(她来不来我无所谓.)Whether she comes or not是主语从句.
What caused the fire is not clear.(是什么引起的大火还不清楚.)What caused the fire是主语从句.