—Mum, may I go to the cinema tonight?
—Yes, you may. (No, you mustn't / you' d better not. ) 比较—Yes, please / please don't,
2.(延边F)表推测、或许、可能的意思,表示一件事或许会发生,只用在陈述句中。如:
Her parents may come to see her tomorrow,
3.(延边F)may句式用来表示祝愿。如:
May you succeed!
= I hope you may succeed: May you be happy, healthy and wealthy!
4.(延边F)might是may的过去式,表示可以做的事或可能发生的事;主句谓语动词是过去时态时用 might不用may。might一般用于比may的口气委婉,或表示现实的可能性更小一些的语境中。如:
Our teacher suggested a few books which I might buy.
I wonder if I might buy some sugar now.
m. must 和 have to
1.(延边F)表示必须要做的事,意为“必须“,否定式 mustn’t表示“不应该,不许可,禁止”等。因此,在回答带有must的问句时,不用mustnIt,而用 needn’t或don’t have too如:
—Must I hand in the paper now?—Yes, you must.—No, you needn ' t. / you don' t have to.
2.(延边F)must在表示“必须”时与haveto相近,have to比较强调客观的需要,must着重主观看法。另外must不像haveto那样能有更多的时态。如:
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