to do和doing做主语的区别

Question

如题所述

Answer 1

to do 表示不定式 后通常接动词原形 to do 做主语 有将来的含义
而doing是动名词 后接名词或者代词等

Answer 2

to do动词短语和doing动名词

Answer 3

一、.动名词和不定式做主语的相同点
1. 不定式短语和动名词做主语时，常常为了保持句子的平衡，用it来做形式主语。如：
It is not easy to learn English well.
It is no use asking him for help.
2. 如果主语用了不定式，表语和宾语也要用不定式；主语用了动名词，表语和宾语也要用动名词，这在英语中称为对称性。如:
To see is to believe. = Seeing is believing. (眼见为实)
It is better to stay home than to go out.

二、动名词和不定式做主语的不同点
1. 不定式做主语常表示具体的某一动作，表示泛指或一般的抽象的概念时，多用动名词。如:
Walking is a good form of exercise for both young and old.

2.在”There/It +be+ no use(good/help/need)”之后常用动名词做主语，而少用不定式。如:
It /There is no use crying over the split milk.
It /There is no help taking this medicine.
但是，如果该句型中用了for引出不定式的逻辑主语，就只能用不定式。如:
There is no good for us to do that exercise.

3. 不定式可以和when, where, how, what, whether等连用，在句子中做主语，宾语和表语，而动名词则不能。如:
How to solve the problem is a hot potato.
Where to put the box seems hard to decide.
Whether to do it hasn't been decided.
What to do next is up to you.