what we used to think was impossible does now seem possible

来源：百度知道 编辑：UC知道 时间：2024/06/06 13:30:25
what we used to think 做主语， was impossible 是系表结构，那后面的呢？

what we used to think was impossible 是主语从句，也就是说整个相当于主语，后面does是谓语，（what)now seem possibles 是宾语从句

后面是主句的谓语部分呀，
以前我们通常认为不可能的事，现在确实是可能的。
does 是强调，seem possible 又是一个系表结构

what we used to think was impossible作主语
谓语是seem (does表示强调 其实原本应该是seems)

谓语动词是seem，does只是起强调seem的作用。