作业帮动名词与不定式做形式主语或形式宾语时有什么不同?如：It's difficult to climb a mountain.It's difficult climbing a mountain.It's dangerous to play with fire.It's dangerous playing with fire.具体怎样选择进行使用?
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 01:47:26
动名词与不定式做形式主语或形式宾语时有什么不同?如：It's difficult to climb a mountain.It's difficult climbing a mountain.It's dangerous to play with fire.It's dangerous playing with fire.具体怎样选择进行使用?
动名词与不定式做形式主语或形式宾语时有什么不同?
如：It's difficult to climb a mountain.
It's difficult climbing a mountain.
It's dangerous to play with fire.
It's dangerous playing with fire.
具体怎样选择进行使用?
动名词与不定式做形式主语或形式宾语时有什么不同?如：It's difficult to climb a mountain.It's difficult climbing a mountain.It's dangerous to play with fire.It's dangerous playing with fire.具体怎样选择进行使用?
1.做主语
不定式与动名词作主语一般来说区别不大,有时两者可以互换.
一般来说,动名词表示抽象动作或是说话人的习惯、爱好；而不定式表示具体的、一次性动作.例如：
Smoking is prohibited here.此处禁止吸烟.(抽象动作)
It’s not good for you to smoke too much.你抽那么多烟不太好.
(具体动作)
2.作宾语
1）在动词start,begin,continue,cease等后面,通常情况下不定式和动名词作宾语区别不大.如；
They start taking/to talk about the matter.
他们开始讨论那件事了.
2）在动词like,love,hate,prefer等后面,动名词表示抽象或习惯性的动作,不定式表示具体的、一次性的动作.如：
I like taking a walk after supper.我喜欢晚饭后散步.
It is very hot today.I like to swim after dinner.
今天很热,我想饭后去游泳.
3）有些动词接动名词或不定式时意义完全不同：
●remember,forget,regret后接动名词表示已完成的动作,接不定式表示未完成的动作.如：
You must remember to post the letter.你一定要记得寄信.
I remember posting the letter.我记得已经寄出那封信了.
She forgot to tell her mother about it.她忘了把这件事告诉母亲.
She forgot telling mother about it.她忘了曾告诉过母亲这件事.
I regret to say that I can’t come.我很抱歉,不能来了.
I regret spending so much money.我很后悔花了这么多钱.
●try to do意为“尽力做”,try doing意为“试着做”
Try to be here on time.请尽量按时到这里来.
If the car won’t start,try pushing it.如果这车发动不起来,就试着推一推它.
●stop to do意为“停下来去做另外一件事”,stop doing意为“停下正在做的事”：
He stopped to smoke.他停下来开始吸烟.
He stopped smoking.他戒烟了.
●go on to do意为“接着做不同的事”,go on doing意为“继续做同一件事”：
After writing,he went on to read.写完字后,他接着读书.
He went on working without taking a rest.他一直工作,没有停下来休息过.