本文主要是介绍口语笔记——情态动词,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
情态动词种类
1、can could
2、will would
3、may might
4、must have to
5、shall should ought to be supposed to do
6、need dare
表能力
-
can
- you can speak English.
-
could(can的过去式)
- you could speak English. (表达过去能说英语)
表将要
- will
- I will finish my homework.
- would:will的过去式
- I would finish my homework. (表达过去会做某事)
表许可、征求意见
- can/could:(一二三人称均可使用)
- Can you close the door?
- Could you close the door? (比can更委婉)
- Can I help you ?
- Can he come in ?
- may/might:(只能用于第一人称)
- may I come in?
- might I come in? (更委婉)
- will/would:(只能用于第二人称)
- will you tell me ? 你能告诉我吗?
- would you tell me? (更委婉)
- shall:要不要(只能用于第一人称疑问句)
- shall I get you a chair? 要不要我给你拿把椅子?
表可能、推测
- can/could:(can不能用于肯定句)
- he could be a teacher.
- can/could he be a teacher?
- he can’t/couldn’t be a teacher. 他不可能是一个老师
- may/might: (may不能用在疑问句首)
- When may/might he finish his homework?
- Might he finish his homework?
- he may not be a teacher. 他可能不是一个老师
表否定时,can not 表示不可能,may not 表示可能不。
- must
- He must be a teacher. 他一定是个老师
表应该/命令
- shall(第二、三人称,应该)
- You shall never do it again!你再不能这么做了!
shall 用于第二三人称陈述句中表命令,警告,承诺,决心等。而用于第1从称疑问句中时表示征求意见(见上面)。
- should:应该
- you should study English hard. 你应该努力学习。
- ought to:真应该
- you ought to study English hard. 你真的应该努力学习。
ought to 比 should语气重,场合更正式,在书面和合同里会用ought to
- be supposed to do : 表应该,== should
- you are supposed to come earlier. 你应该早点来。
表必须/一定
- must / have to
- I must wake up early. 我一定要早起
- I have to wake up early. 我不得不早起 (因为要上学)
must表主观意愿,一定, have to表被迫完成由外物决定,不得不。
- 对must的否定回答,要用not have to 或not need to
- Must i wake up early?我一定要早起吗?
- No you don’t have to /need to wake up early. 不,你不需要
表需要
need有情态动词与实义动词两种用法。
- 实义动词(肯定句/疑问句):
- He need to go.
- Does he need to go ?
- you don’t need to woke up early.
- 情态动词(只能用于否定句/疑问句):
- Need he go ?
- 表被动 need doing
- the car needs washing. == the car needs to be washed
表敢
dare也有情态动词与实义动词两种用法。
- 实义动词(陈述句):
- you dare to insult me 你竟敢羞辱我
- 情态动词(否定句/疑问句):
- Dare you tear up her ticket? 你敢撕毁她的票吗?
- 情态动词(否定句/疑问句:
- How dare you talk back to me ? 你竟敢和我顶嘴?
- you told him, how did you dare? 你怎么敢?
- 双重否定句
- He daren’t(情态) not do the homework.
- He doesn’t dare(实义动词) not to do the homework. 他不敢不做作业。
- 名词:激将/挑战
- she learned to fly on a dare. 在激将下她学会了驾驶飞机。
相关阅读
- 口语笔记——高频介词
- 口语笔记——介词短语之方位指路
这篇关于口语笔记——情态动词的文章就介绍到这儿,希望我们推荐的文章对编程师们有所帮助!