无敌英语语法(初级版)-第12章 5 have to
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》。 1 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。 2 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。 3 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。 |