英语中的情态动词对于我们来说是必须要掌握的一个知识点。它不管是在英语口语还是作文中或者是在英语阅读理解中都有可能出现成为考点。这里教给大家情态动词的用法。
情态动词的基本用法
1.can
(1)(表示能力)能……;会……
She can drive,but she can’t ride a bicycle.
【注】 could表示“原来具备某种能力,现在没有这种能力了”,
但was/were able to则表示过去成功地做成了某事。
I could swim all the way across the lake,but I can’t now.
我原来能游过这个湖,但现在不能了。
The fire spread through the hotel very quickly but everyone was able
to get out.
大火很快蔓延了整个旅馆,但全体人员都脱离了危险。
(2)(表示可能、许可)能够……;可以……
“Can I use your telephone?”“Yes,of course you can.”
You can’t park your car in this street.
【注】 can可作“有时候会……”解,意思是平时或大部分时间不
是这样子,只是偶尔发生的事情。如:
Jogging can be harmful to the health.
慢跑有时候会对身体健康有害。
(3)(表温和的命令)请做……,得……
I’ll do the cooking,and you can do the washing.
我来做饭,请你去洗衣服。
(4)(用于疑问句中,表请求、提议)能不能……;要不要……
Can you give me a lift to the station?
Can’t you lend me ten dollars?
请你借给我10美元吧?
(5)(用于疑问句中,表惊讶、怀疑等)“(到底)可能有这样的事吗?”
Can it be that it was I,not he,who was mistaken?
难道错的会是我,而不是他吗?
(6)构成下列特殊句式:
①can not/can never...too...或cannot...enough “无论怎么……也不过分;
越……越好;非常……”。
One cannot be too careful. 越认真越好。
I cannot thank you enough.我对你感激不尽。
②cannot help doing.../cannot help but do.../cannnot but do...“禁不住;不
由得;不得不”。
I cannot help admiring the picture whenever I look at it.
When a close friend dies,you cannot but feel sad.
2.may
(1)(表准许、请求)可以……
You may go home now,Susan.苏珊,你现在可以回家了。
May I have a word with you,please?我可以跟你说句话吗?
(2)(表愿望、祝福)但愿;祝……。此时,句子要用倒装语序。
May you succeed!祝你成功!
(3)(用于目的状语从句中)为了;为了能够
He works hard so that he may get good grades.
(4)(用于让步状语从句中)即使;无论
Whatever he may say,I don’t believe him.
(5)构成句型:may/might as well do sth. “还是做某事的好;不妨去做
某事”
Since we’ve got nothing better to do,we might as well go for a walk.
既然我们没什么更好的事情可做,我们不妨去散散步。
可以说,情态动词的用法是非常复杂的。希望同学们你们可以认真阅读在课下的时候也可以多抽出时间来做练习保证自己熟练掌握。