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1.stop to do sth. 和stop doing sth. “stop to do sth.” 表明停止做其它工作而去做“to do sth.”所表明的工作,能够将“to do sth.”了解成“stop”的意图状语:“stop doing sth.”表明不做“doing sth.”所表明的工作。
例如:“Stop talking. Let's begin our class.”said the teacher. 教师说:“别说话了,让咱们开始上课。”
We have kept doing our homework for a long time. Let's stop to listen to music. 咱们做家庭作业很长时间了,让咱们停下来听听音乐。
2.have sth. done.(过去分词)(让他人)做某事
例如:I had my hair cut yesterday afternoon. 我昨天下午理了发。
My computer can not work now. I must have it repaired. 我的电脑有故障了,我必须让人修好它。
3.forget to do sth.和forget doing sth. (remember to do sth. 和remember doing sth.)
“forget to do sth.”表明将来不要忘掉做某事,谈的是将来的工作:“forget doing sth.”表明忘掉过去应当做的工作。
例如:“Don't forget to do your homework.”said the teacher before the class was over.
教师在下课前说:“不要忘掉做家庭作业。”
“I'm sorry. I forgot doing my homework. May I hand it in this afternoon,Mr. Chen?”said Li Ming.
李明说:“对不住,我忘掉做家庭作业了。我今天下午交好吗,陈教师?”
4. 感官动词后接不带to的不定式或许现在分词的差异
例如:see sb. do sth.看见或人(常常)做某事 和see sb. doing sth.看见或人(正在)做某事
I often see him do exercise in the morning. 我常常在早晨看见他锻炼身体。
When I was walking in the park,I saw him drawing a picture there. 当我在公园漫步的时分,我看见他正在那里画画。
5. 介词后边通常接动名词。同学们要特别注意介词to和不定式符号to的差异,例如下面的词组一定要记清:
prefer doing sth. to doing sth. 喜爱做……不喜爱做……
look forward to doing sth. 等待/期望做某事
make a contribution to doing sth. 为……做出奉献
6. 在主动语态中,感官动词(see,hear,feel,watch等)和使役动词(make,have,let等)请求接不带to的不定式做宾语补足语,而在被动语态里,不定式要带上to.
例如:The boss often made the workers work 10 hours a day.
The workers were made to work 10 hours a day.
She was heard to use strong language. 听说她骂人了。
7.常用的几个和不定式有关的句型:
Why not do sth?为何不做某事?
It takes/took sb. some time to do sth. 做某事花了或人多长时间。
It is/was +形容词+(for sb.)+to do sth. 做某事(对或人来说)怎么样。
8. 现在分词和过去分词做定语的差异
A. 如今分词富含正在进行的意思,而过去分词富含被迫或许现已完结的意思,如:
a developing country 发展中国家 a developed country 发达国家
boiling water 正在沸腾的水(通常状况下水温为100℃) boiled water 开水(现已烧开的水,水温能够仍然很高,也能够是凉白开)
a boy named Jim 一个叫Jim的男孩
B. 有些动词的现在分词和过去分词都具有形容词特征,可是它们的意思有差异。它们的-ing方式通常用来阐明事物的特征;他们的-ed方式表明被动的意思,用来阐明人的状况。
I am interested in this interesting story. 我对这个风趣的故事感兴趣。
I am moved at the moving sight. 我被这动人的情形感动了。
They were amazed at the amazing facts. 他们对那些令人惊异的事实感到惊讶。
文章转自网络
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