如何区分表达“不是...”和“是不....”

问题描述

我看到一句子The smartest thing Donald Trump has ever done is not release his tax returns

这句话是说：特朗普做过最聪明的事情是不公布他的退税

还是说：特朗普做过最聪明的事情并不是公布他的退税

另外还想请问下这句话中的release前面是不是省略了不定式to？

老师答疑

陈老师：

我看到一句子The smartest thing Donald Trump has ever done is not release his tax returns

这句话是说：特朗普做过最聪明的事情是不公布他的退税

还是说：特朗普做过最聪明的事情并不是公布他的退税

另外还想请问下这句话中的release前面是不是省略了不定式to？

回答如下：

不定式作表语，如果前面句子由do的形式出现，后面不定式to可以省略

What you have to do is (to) peel the apple

What I really wanted to do was (to)drive all night.

What he wanted to do was(to) become a skillful worker.

The only thing I can do is (to) sleep in bed.

What I want to do is (to) have a good rest.

The only thing I want to do now is (to) lie in bed.

All that he can do is (to)wait

All I did in the factory was (to) wash bottles.