to do和doing做主语的区别
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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
而doing是动名词 后接名词或者代词等
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to do动词短语和doing动名词
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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.
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.
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