60 不定式作主语:It + … + to do sth. Track 060
(1)It + … + to do sth.
不定式作主语,常见的是用it作形式主语,放在句首,将真正的主语——动词不定式(短语)放在句子后面。
a. It is easier to spend money than to make money.
b. It takes time to study English well.
注意:此处形式主语it不能用this或that来替换。
This(A) is impossible for(B) people to stare directly(C) at the sun. 人们不可能直视太阳。
答案:A。This 改为It。
(2)不定式结构也可直接置于句首作主语,此时谓语动词要用单数形式
例句
a. To err is human; to forgive, divine.
犯错人皆难免,宽恕则属超凡。
b. To solve this problem takes a genius like Einstein.
c. To love for the sake of being loved is human, but to love for the sake of loving is angelic.
d. To send a letter is a good way to go somewhere without moving anything but your heart.