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Grammars
情态动词
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Grammars
must和have to都表示必要性,
must 表示主观认为有必要,有义务,没有时太和人称的 变化,
have to 表示客观环境方面的需要,除了“必须”之外, 还有“不得不”的意思,有时态和人称的变化。
must 没有时态和人称的变化 I must ,he must have to 有时态和人称的变化 I have to, he has to
Surprise!You always surprise me.
to sb’s surprise = to the surprise of sb令某人惊讶的是
To my surprise, she is the mother of two children.
in surprise 吃惊地,在惊慌中
To the surprise of me
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2. Not yet. I must water the garden first.
① yet 用于否定句中,表示还 Have you been to Beijing? – Not yet. 言外之意
是:I am going to BeiJing some day. The clothes are not dry yet. ② water the garden ③ first 首先
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3. Do you have to water it now?
① have to 不得不 Do I have to wait for him? Yes, I do. / No, you don’t (have to)
Must I see him now? Yes, you must. / No, you needn’t