must的反义疑问句问题.请重点说一下must have done把.我不太明白,为什么有些用don't,有些用haven't,有些是be动词呢?she must have finished reading the novel last night,____?
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![must的反义疑问句问题.请重点说一下must have done把.我不太明白,为什么有些用don't,有些用haven't,有些是be动词呢?she must have finished reading the novel last night,____?](/uploads/image/z/5802715-19-5.jpg?t=must%E7%9A%84%E5%8F%8D%E4%B9%89%E7%96%91%E9%97%AE%E5%8F%A5%E9%97%AE%E9%A2%98.%E8%AF%B7%E9%87%8D%E7%82%B9%E8%AF%B4%E4%B8%80%E4%B8%8Bmust+have+done%E6%8A%8A.%E6%88%91%E4%B8%8D%E5%A4%AA%E6%98%8E%E7%99%BD%2C%E4%B8%BA%E4%BB%80%E4%B9%88%E6%9C%89%E4%BA%9B%E7%94%A8don%27t%2C%E6%9C%89%E4%BA%9B%E7%94%A8haven%27t%2C%E6%9C%89%E4%BA%9B%E6%98%AFbe%E5%8A%A8%E8%AF%8D%E5%91%A2%3Fshe+must+have+finished+reading+the+novel+last+night%2C____%3F)
must的反义疑问句问题.请重点说一下must have done把.我不太明白,为什么有些用don't,有些用haven't,有些是be动词呢?she must have finished reading the novel last night,____?
must的反义疑问句问题.
请重点说一下must have done把.我不太明白,为什么有些用don't,有些用haven't,有些是be动词呢?
she must have finished reading the novel last night,____?
must的反义疑问句问题.请重点说一下must have done把.我不太明白,为什么有些用don't,有些用haven't,有些是be动词呢?she must have finished reading the novel last night,____?
she must have finished reading the novel last night,【didn't she
句中有时间的标志性短语 last night,时态就只能用一般过去时,不可以用完成时.【反义疑问句肯定要根据时态,所以是didn't she 】
陈述部分有must 的疑问句,疑问部分根据实际情况而定.
A.must表示“应该”,其疑问部分用mustn't(不应该),如:You must work hard next term,mustn't you 下学期你应该努力学习,对吗?
B.must表示“必须”,其疑问部分用needn't(不必),如:They must finish the work today,needn’t they?他们今天必须要完成这项工作,是吗?
C.陈述部分含情态动词mustn't,表示禁止时,疑问部分就可以用must或may,如:You mustn’t stop your car here,must you?(may we?)你不能把车停在这地方,知道吗?
D.must表示推测 ,其疑问部分必须与must 后面的主要动词相呼应.如:
①对现在动作或存在的情况的推测 :You must know the answer to the exercise,don't you?你一定知道这项练习的答案,是不是? That must be your bed,isn't it?那一定是你的床,是吗?
②对过去发生的动作或存在的情况的推测:
a 表示肯定推测
(一)句中陈述部分没有表示过去的时间状语,这时疑问部分中的动词就用现在完成时.(haven’t / hasn’t + 主语) You must have told her about it,haven’t you?你一定把这事告诉她了,是吗?