高中英语单选(4道）求讲解1.Mr.Bush,have you read the novel Yes.When I was studying in Beijing University,I___it.A.read B.have read C.would read D.had read A 为什么不选B?2.The exhibit is on view here for three months ,after____it will t

高中英语单选(4道）求讲解1.Mr.Bush,have you read the novel Yes.When I was studying in Beijing University,I___it.A.read B.have read C.would read D.had read A 为什么不选B?2.The exhibit is on view here for three months ,after____it will t
高中英语单选(4道）求讲解
1.Mr.Bush,have you read the novel
Yes.When I was studying in Beijing University,I___it.
A.read B.have read C.would read D.had read
A 为什么不选B?
2.The exhibit is on view here for three months ,after____it will travel to another city.
A.that B.then C.when D.which
3.The difficulty they had ____the orphans was beyond my imagination .
A.supporting B.support C.supported D.to support
4.Don't worry.I'll be back before you _____.
A.left B.have left C.will leave D.had left

高中英语单选(4道）求讲解1.Mr.Bush,have you read the novel Yes.When I was studying in Beijing University,I___it.A.read B.have read C.would read D.had read A 为什么不选B?2.The exhibit is on view here for three months ,after____it will t
1题 你要知道现在完成时表示过去发生的动作对现在造成的影响,而一般过去时表示过去发生的动作.这句话是说 当你在北大上学时,我就读了它了.是说我读过,而不是对现在造成的影响.所以选A不选B.
2题 非限制性定语从句,缺少after介词后的名词,只能用which.
3题 这个很明显,你要先知道这个结构：have difficulty （in） doing sth,知道这个后,一看句子就知道这是个定语从句把这个短语给变形了,所以只能选A.
4题 现在完成时也可以用在从句动作发生在主句动作之前.这句话的意思是：别担心,在你离开以前我会回去的.所以是先离开后回去,所以要选B.

1 如果没有when I was studying in Beijing University，选B，但是有了它，就是一般过去式
2 非限制性定语从句
3 固定用法 have difficult doing 在做某事时有困难
4将来完成时态

1.它的提问是have you ，所以你在回答时肯定是相呼应的~应该用have
2.after属于介词，介词后面要+which来形成定语从句
3.这句话是they have the difficulty (in) doing,这是一个同位语从句，实际是the difficulty (that) they had (in) supporting the orphans,它的缩句相当于...

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1.它的提问是have you ，所以你在回答时肯定是相呼应的~应该用have
2.after属于介词，介词后面要+which来形成定语从句
3.这句话是they have the difficulty (in) doing,这是一个同位语从句，实际是the difficulty (that) they had (in) supporting the orphans,它的缩句相当于是The difficulty was beyond my imagination
4.首先，这是应该是现在时，所以A错，应为leave，D也错，将来时也错，B：have left完成时，即表示在你离开这个动作做好之前，我会回来，这题实际可填leave或者B选项

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