更新时间2018-07-21 00:43:49
动词不定式，动词ing形式做主语时，无语动词常用单数例如：
To save money now seems impossible.
现在要省钱是不可能的。
Climbing mountains is really fun.
爬山是真有趣。
O(∩_∩)O~
提供的例子是动名词作主语。要用不定式造句，则很少放在句首，而且用 it 则形式主语，而将作真正主语的不定式放在后面。
例如：
It's important to learn English well.
It's not too difficult to master a forengn language.
It's useless to talk about it.
……
动名词的例子：
Getting up early is good for your health.
Eating too much meet does harm to your health.
……
I want to go to Beijing tomorrow.
爱问答