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不得不让步

I saw that she was right, so I had to back down.我知道她是对的,所以我不得不让步。学习亮点:首先是 back down放弃;让步;打退堂鼓He backed down after I saw his mistake.在我拆穿他的大话后,他让步了。I see he has backed down fr

I saw that she was right, so I had to back down.

我知道她是对的,所以我不得不让步。

学习亮点:

首先是 back down

放弃;让步;打退堂鼓

He backed down after I saw his mistake.

在我拆穿他的大话后,他让步了。

不得不让步

 I see he has backed down from the position he took last week.

我注意到他放弃了上星期的立场。

其次,今天恒星小编就还要跟大家来讲解下have to的用法.

have to 是一个比较特殊的情态习语,虽然也具有情态动词的功能,但却与其他的情态动词不同。它有人称、数和时态的变化,其否定式和疑问式的构成方式也与情态动词不一样。同学们在使用have to 时必须弄清它的真面目,否则容易出错。

  一、have to 与其他情态动词一样也是后接动词原形,表示外界的强制作用,强调被迫性。含有不情愿的色彩,常译为“必须,不得不”。

  二、have to 可用于多种时态,而且不同时态使用不同的形式:一般现在时中,主语为第三人称单数时用has to ; 一般过去时中,用 had to。 have to 还可以用在其他的情态动词之后。例如:

  I have to do some washing.

  我必须洗洗衣服。

  She has to look after her little sister.

  她不得不照顾她的小妹妹。

  I had to do my homework last night.

  昨晚我不得不做作业。

  I think he may have to help his Dad in the garden.

  我想他可能不得不在花园里帮他爸爸。

  三、have to 的否定式和疑问式一般要借用助动词do的适当形式构成。have to 的否定式是don’t have to; has to 的否定式是doesn’t have to; had to 的否定式是didn’t have to。have to的疑问式同样也借用助动词do的相应形式构成。例如:

  He doesn’t have to do the homework now.

   他没有必要现在做作业。

  —Do I have to go there now?

   我现在就得去那儿吗?

  —Yes, you do. (No, you don’t have to.)

  是的,你必须去。(不,你不必。)

  We didn’t have to answer the question yesterday.

  昨天我们没有必要回答这个问题。

  注:情态习语是助动词、不定式或副词的组合。 

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