标题：[英语语法手册]情态动词－－have to

内容：
have tohave to加动词原形表示不得不、必须的概念。

它比must更含有客观条件使得必须如此做的意思，并有较多的时态。

如：Mr.

Johnson has to work very hard to earn a living.

约翰逊先生为了谋生不得不拼命干活。

I had to leave the party early last night.

I wasn't very well.

昨晚我只得早点离开晚会，我不大舒服。

We will have to get up very early tomorrow.

我们明天必须起得很早。

I shall have to go to the clinic today for my bad cough.

我咳嗽得厉害，今天必须去诊疗所看看。

[注]口语中的I have got to，you have got to等：I have to，you have to.

Have I got to?

和Do I have to?

这两种疑问形式均可用。

[英语语法手册]情态动词--shall shallshall作为情态动词用于第二、三人称可表示说话人给对方的命令、警告、允诺、威胁等概念。

如：You shall do it，whether you want to or not.

不管你愿意不愿意，你必须做这项工作。

(命令)You shall have the book as soon as I finish it.

这本书我一看完就给你。

(允诺)You shall pay for it.

你一定会受到惩罚的。

(威胁)在疑问句中，情态动词shall用于第一、三人称表示说话人征求对方的意见或向对方请示。

如：What shall I do now?

我现在该做什么?

Shall we go for a walk?

我们去散步好吗?

Shall he come tomorrow?

你要他明天来吗?

发布时间：2025-06-08 15:49:44
来源：学历学位网
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