情态动词部分需要掌握情态动词公式
成人高考英语情态动词部分常考情态动词的一些固定结构
如:1 must /may /might +动词原形(表对现在事情的肯定推测)
She ________on her way to school, I just phoned her home and no one answered me.
A. should be B . must be C. might have been D. could be
解析:本题考查考生对情态动词固定结构的掌握,由于本题是对现在事情的推测,故选B。题意为:她肯定在上学的路上,我刚打电话给她家里,没人接。
must /may /might +have +PP(过去分词) (表对过去事情的肯定推测)
--They are supposed to arrive at six, but there is no sign of them..
--Something unexpected__________-to them.
A . might happen B .must have happened C. would have happened D. could happene
解析:此题考情态动词对过去事情肯定推测的结构,故选B 题意为:他们原定于6点到达,但现在连人影都没见到,肯定出什么事了。
couldn’t / can’t +have +PP ( 表对过去事情的否定推测)
“I saw Mary in the Library yesterday.”
“you her, she is still in hospital.”
A mustn’t have been B could not see C. can’t have been D. must not see
解析:此题考情态动词对过去事情否定推测的结构,故选C 题意为:我昨天在图书馆看到玛利了。 你不可能看到她,她还在医院里呢。
You ________have seen Jane in her office Last Friday, she’s been out of town for two weeks.
A couldn’t B . mustn’t C . wouldn’t D. shouldn’t
解析: 题考情态动词对过去事情否`定推测的结构,故选A 题意为:上个星期五你不可能在简的办公室看到简,她已出城两个星期了。
4.Ought to / should +have +PP (表过去应做的事而实际上未做,含有责备的口气)
You ____________yesterday if you were really serious about the job.
A ought to come B ought to have come C. ought have come D. ought come
解析:此题考查过去应做的事而实际上未做,故选B 题意为:如果你很在乎这份工作的话,昨天你就该
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