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英语虚拟语气问题,多道

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英语虚拟语气问题,多道
1._____you a more valuable present for your birthday,but I was short of money at that time
Amust have bought Bhad bought Cwould have bought Dwould buy
问:一答案再稍微讲解一下下•••••••.二如何判断哪个是主句,哪个是从句?
以下均为“答案再稍微讲解一下下”
2.______he come ,the problem would be settled.
Awould Bshould Cshall Dif
3.Read It aloud so that I ------you cleary .
Acan hear B will hear Chear Dhave hear
4.------would you have called her up if it had been possible?
-------yes,but I ______busy doing my homework.
Awas Bwere Chad been Dwould be
5.Tom would buy that bicycle but he ________no money
Ahad Bhas Chad had Dhas had
6,------Why do not you explain it to her?
------ I ____it to her if I thought she would understand.
Awould explain Bwill explain Cexplain Dwould have explained
7.We______our lives had it not been for the policeman
Awould have lost Bshould lost Cmight lost Dcould have lost
8.i do not have job .i would find one but I ______no time
Ahad Bdid not have Chad had Dhave
1.C
由后句but...可知前句为对过去动作的虚拟,所以用would have done sth结构.
单句出现的虚拟语气,除了if only引导的句子之外,都是主句.
2.B
可以省略if的条件状语从句中,被提前的句首词只能是should/were/had,排除ACD.
此题为对将来动作的虚拟.
3.A
so that的虚拟语气,要求其从句谓语由“情态动词 + 动词原形”构成.
4.A
该题从would you have called her up if it had been possible?来看,是对过去动作的虚拟,所以but后面所表示的实际情况发生在过去,所以用过去进行时为最佳答案.
5.B
该题从前句Tom would buy that bicycle是对现在动作的虚拟,所以but后面引导的表示实际情况的句子时态为一般现在时.
6.A
从句意来看,答句是对将来动作的虚拟,所以主句用would do sth.
7.A
had it not been for the policeman = if it had not been for the policeman,表明是对过去的虚拟,所以主句用would have done sth.
8.D
此题but之后为实际的现在的情况,并非虚拟,所以只用have即可.