作业帮----Jenny took the 8:00 bus to Guangzhou this morning.
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----Jenny took the 8:00 bus to Guangzhou this morning.
----Really?He _________the 9:00 train.It is much more comfortable and safer to travel by train.
A.could have taken
B.need have taken
C.must have taken
D.woulahave taken
(c)
为何不选D呢?D怎么翻译啊?
----Really?He _________the 9:00 train.It is much more comfortable and safer to travel by train.
A.could have taken
B.need have taken
C.must have taken
D.woulahave taken
(c)
为何不选D呢?D怎么翻译啊?
应选A.考查情态动词.上句表示珍妮已乘坐8点的汽车去广州了.答句意义是：他本可以坐9点的火车去,坐火车舒服得多,安全得多.“情态动词could+完成式”表示“本来可以”,而实际上并没有.“情态动词+have done”的用法是高考对情态动词知识点考查的热点,不同的情态动词与have done连用有不同的意义,但都是对过去事物的推测.
A“could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做.
He could have passed the exam,but he was too careless.本来他能够通过考试,但是他太粗心.
B “need+have+done”表示本来需要做某事而没有做.“needn't+have+done”则表示“本来不需要做某事而做了”.
I needn't have bought so much wine—only five people came.我本来没有必要买这么多酒,只来了五个人.
He need have hurried to the station.In that case,be wouldn't have missed the train.他本来需要快点去车站,那样的话,他就不会误了火车.
C “must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句.
1.It must have rained last night,for the ground is wet.昨晚一定下雨了,因为地面还是湿的.
2.You must have been mad to speak to the servant.你和仆人说话,一定是发疯了.
D “would+have+done”虚拟语气,表示对过去事情的假设,意思是“本来会做”.
1.I would have told you all about the boy's story,but you didn't ask me.我本来会告诉你这个小男孩的故事,但是你没有问我.
2.Without your help,I wouldn't have achieved so much.没有你的帮助,我是不会取得如此大的成绩.
ZHE
A“could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做.
He could have passed the exam,but he was too careless.本来他能够通过考试,但是他太粗心.
B “need+have+done”表示本来需要做某事而没有做.“needn't+have+done”则表示“本来不需要做某事而做了”.
I needn't have bought so much wine—only five people came.我本来没有必要买这么多酒,只来了五个人.
He need have hurried to the station.In that case,be wouldn't have missed the train.他本来需要快点去车站,那样的话,他就不会误了火车.
C “must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句.
1.It must have rained last night,for the ground is wet.昨晚一定下雨了,因为地面还是湿的.
2.You must have been mad to speak to the servant.你和仆人说话,一定是发疯了.
D “would+have+done”虚拟语气,表示对过去事情的假设,意思是“本来会做”.
1.I would have told you all about the boy's story,but you didn't ask me.我本来会告诉你这个小男孩的故事,但是你没有问我.
2.Without your help,I wouldn't have achieved so much.没有你的帮助,我是不会取得如此大的成绩.
ZHE
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