Grammar Tea 今天我们学习情态动词must, can, could, may, might表示推测的用法。 must表推测 "可能性" 时,意为"准是",只能用于肯定句,语气最肯定。 * She must be at home now. 她现在肯定在家。 must表推测,其否定形式是can't,表示 "不可能",而非mustn't. * She can't be at home now. * She mustn't be at home now. can/could 从使用句型上看,can常用于否定句或疑问句,而could用于肯定句、否定句和疑问句。could比can更委婉,更不确定。 * It can't (couldn't) be true. 那不可能是真的。 can有时在肯定句中表推测,主要用于表示理论上的可能性,或表示 "有时" 。 * Even experienced teachers can make mistakes. 即使是有经验的教师也可能会出错。 may/might may, might表示推测时,意为 "可能","也许",might语气更委婉,表示的可能性更小。两者都可用于肯定和否定句,但不用于疑问句。 * He may / might not be watching TV at home. 他现在可能没在家看电视。
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来做你们最擅长的单选题吧,记得看完内容再做题哦~
e_____ be at home now, for I saw him working out in the gym just now.
A. must B. mustn't C. can't
he road is wet, so it _____ have rained last night.
A. might B. must C. can't
t's so late. Where_____ she have gone?
A. can B. may C. might
think we should take raincoat with us, it _____ rain.
A. must B. can C. may
答案 解析/p>
他现在肯定不在家,我刚刚还看到他在健身房健身呢。A选项表示"肯定", B选项表示 "禁止", 均与题意不符。
地面是湿的,昨夜一定是下雨了。A选项表示"可能",但是可能性很小,C选项表示"肯定不",均与题意不符。
都这么晚了,她可能去哪里了呢? B,C选项均不可以用在疑问句中。
我觉得我们该带伞,有可能会下雨。 B选项can在肯定句中只表示理论上的可能性,A选项与题意不符。
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