To do作主语和doing作主语有什么区别？2011-12-21 18:49提问者：兰志学|浏览次数：280次例如（）（protect）wild animals，we must protect the places where they live.应该是To protect对么？我来帮他解答2011-12-21 22:22满意回答本题题意为为了保护动物，我们必须保护他们生存的地方这里用to do 作主语表目的to do和doing 作主语的区别1）一般来说，表示比较抽象的行为动作时多用动名词doing；表示比较具体的某次行为动作时多用不定式to do。
如：No smoking is permitted here.It is not very good for you to smoke so much.Reading more is necessary.It is quite necessary to read it again.2）在许多情况下，两者可以互换，意义上没有太大的差别。
如：Seeing him happy made me happy too.It made me happy to see him happy.It is useless learning something without practising it.It is useless to learn something without practising it.3）不定式to do作主语时，常使用形式主语结构；而动名词doing作主语时，较少用形式主语结构，只有在It is no good, It is no use, It is useless, It is worthwhile 等句型中出现it 作形式主语现象。
如：It is hard to make him change him mind.It is not an easy thing to master a language.How would it be to start tomorrow?It took all his strength to move out of the crowds.It seemed a pity to give up the chance.Business is business and it will not do to be so careless.It is no good pretending to know what you don't know.It is no use regretting the past.It is worthwhile learning another language.4）在there is no ... 句型中的主语只能用动名词doing，并且不能带逻辑主语。
如：There is no denying the fact.Well, you have said it and there is no taking it back.上述句子的意思如用不定式to do 则分别为：It is impossible to deny the fact.Well, you have said it and it is impossible for you to take it back.5）doing 作主语时强调的是做那件事的状态，而to do 作主语时主要表示一般现在时或者是将来时的事情To do和Doing作主语时的区别看了各位的议论，我想在此和大家一起将动名词和不定式作主语时的用法和注意点作一讨论。
动名词和不定式都可以作主语。
1）一般来说，表示比较抽象的行为动作时多用动名词；表示比较具体的某次行为动作时多用不定式。
如：No smoking is permitted here.It is not very good for you to smoke so much.Reading more is necessary.It is quite necessary to read it again.2）在许多情况下，两者可以互换，意义上没有太大的差别。
如：Seeing him happy made me happy too.It made me happy to see him happy.It is useless learning something without practising it.It is useless to learn something without practising it.3）不定式作主语时，常使用形式主语结构；而动名词作主语时，较少用形式主语结构，只有在 It is no good, It is no use, It is useless, It is worthwhile 等句型中出现 it 作形式主语现象。
如：It is hard to make him change him mind.It is not an easy thing to master a language.How would it be to start tomorrow?It took all his strength to move out of the crowds.It seemed a pity to give up the chance.Business is business and it will not do to be so careless.It is no good pretending to know what you don't know.It is no use regretting the past.It is worthwhile learning another language.4）在 there is no ... 句型中的主语只能用动名词，并且不能带逻辑主语。
如：There is no denying the fact.Well, you have said it and there is no taking it back.上述句子的意思如用不定式则分别为：It is impossible to deny the fact.Well, you have said it and it is impossible for you to take it back.现在回到本题：_____computers is my job.A.To sellB.SellC.SellingD.Sold这里讲的是一个笼统的，抽象的动作行为。
“销售电脑是我的工作 / 我的工作是销售电脑。
”所以说：Selling computers is my job.试比较：Teaching English is my job. （笼统、抽象、泛指）To teach you English this term is my job. （具体、特指）不定式和动名词作主语的区别(1)动名词作主语通常表示抽象动作；而不定式作主语表示具体动作。
Smoking is prohibited(禁止)here．这里禁止抽烟。
(抽象)It is not very good for you to smoke so much．你抽这么多烟对你身体很不好。
(具体)(2)动名词作主语时，通常用以表示一件已知的事或经验。
不定式短语通常用来表示一件未完成的事或目的。
Climbing mountains is interesting．爬山很有趣。
(经验)Driving a car during the rush hour is tiring．在高峰时刻开车令人厌烦。
(经验)（3）不定式做主语，一般用it当形式主语，把作主语的不定式短语后置。
It took me only five minutes to finish the job.英语语法大全--初中英语近义词对比（to do 和doing的区别）发布日期：2009-9-22 作者：佚名下列动词或词组后面都可以接doing:admit 承认appreciate 感激avoid 避免complete完成consider认为delay 耽误deny 否认detest 讨厌endure 忍受enjoy 喜欢escape 逃脱fancy 想象finish 完成imagine 想象mind 介意miss 想念postpone推迟practice 训练recall 回忆resent 讨厌resume 继续resist 抵抗risk 冒险suggest 建议face 面对include 包括stand 忍受understand 理解forgive 宽恕keep 继续例如：Would you mind turning down your radio a little, please? 你把收音机音量调小一点，好吗The squirrel was lucky that it just missed being caught. 这松鼠幸运得很，刚逃避了被逮住的厄运。
admit toprefer…tobe used tolead todevote oneself toobject tostick tono goodno usebe fond oflook forward tobe proud ofbe busycan't helpbe tired ofbe capable ofbe afraid ofthink ofburst outkeep oninsist oncount onset aboutput offbe good attake upgive upbe successful in下列动词或词组都可以用不定式：affordaimagreearrangeaskdecidebothercarechoosedemanddesiredetermineelectendeavorhopefailhelplearnlong 渴望meanmanageofferplanpretendrefusetendundertakeexpecthateintend例如：The driver failed to see the other car in time. 司机没能及时看见另一辆车。
He offered to help me. 他表示愿意帮助我。
需要省略to的不定式的情况有：1）情态动词（除ought 外）后。
2）使役动词 let, have, make后，感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后。