2022年人教版九年级中考英语语法讲解:情态动词(should, would, have to)教案
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这是一份2022年人教版九年级中考英语语法讲解:情态动词(should, would, have to)教案,共3页。教案主要包含了样,但用此句型较客气等内容,欢迎下载使用。
2022年人教版九年级中考英语语法讲解:情态动词(would,should,have to)would是will的过去式,Would you~?作为情态动词,表示“可以请你~吗?”
should是shall的过去式,作为情态动词时,则表示“应该~”。1) would的用法(请记住以下几个句型)Would you have a cup of tea?
可以请你喝杯茶吗?
1.Would you~?和Will you~?
这两个句型皆表示客气的请求、劝说……,但Would you~?更客气些。
Would you tell me the way to the station?
劳驾,您能告诉我去车站怎样走吗?
(回答同《Will you~?》句型)
2.主语+would like to~
表示“想要……”的意思上,与…want to~意思一 样,但用此句型较客气。
I want to ask you a question.
=I'd(I would)like to ask you a question.
我想问你一个问题。
3.Would you like~?
表示请求、劝说,是很客气的说法。
Would you like a cup of tea?
您愿意喝杯茶吗?
Would you like to sing a song?
请唱首歌好吗?
注意
I'd读为〔aid〕
=I would
=I should
=I had
2) should的用法You should read this book.
你应该读这本书。
1.should(应当、应该)用于所有人称,与ought to~同义。
You should wait a little more.
=You ought to wait a little more.
你应该再多等一会儿。
2.在表示要求、命令时,语气是由should(应该)、~had better(最好)、~must(必须)逐渐加强。
had better
had better相当于一个助动词,它后面要跟动词原形;had better只有一种形式,没有has,have better这一形式;它的否定式是在它后面加not。
You had better go now.你最好现在走。
He'd(=He had)better do it now.他最好现在做。
She'd better not cry.她最好别哭。 have(has)to与must一样,表示“必须”的意思,两者的区别参见第154页《比较:must 与 have to》。3) have to的用法I have to get up early tomorrow morning.我明天早晨必须(不得不)早起。1.have(has)to +动词原形have(has)to后面要用动词原形。当主语为第三人称单数时用has to~,当句子是过去时用had to~。We have to leave now.我们不得不现在就离开。He has to work on Sunday.他不得不在周日工作。I had to do my homework last Sunday.上周日,我不得不做作业。4) have to的否定句句型:主语+don't(doesn't)have to+动词原形~.You don't have to walk so fast.你不必走那么快。He will not have to buy a new coat next year.明年,他没必要买新外衣了。5) have to的疑问句句型:Do(Does)+主语+have to +动词原形~?Do you have to study maths now?你现在必须学数字吗?Yes,I do.是的,必须学。No,I don't(have to).不,不必学。Did he have to ask the question?他非要问那个问题吗?Yes,he did.是的。No,he didn't(have to).不。
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