Question

两道英语时态题，求详解

1.For many years,people( )electric cars.However,making them has been more difficult than predicted.
A.had dreamed of B.have dreamed of C.dreamed of D.dream of
2.George is going to talk about the geography of his country,but I'd rather he ( )more on its culture.
A.focus B.focused C.would focus D.had focused
我知道两道题都应该选B,求解释，谢谢。
是B啦，答案上给的。

Answer 1

杲昕 和 annabelding 提供的答案都不全对；pengjigui 提供的虽然全对，但第二题的解释中有误。他/她说 “would rather 后应用虚拟语气，表示与现在时间相反，用动词的过去式”，这没错。但是该题中要填的 focused 所表示的是与将来的情况相反，而不是现在的情况，因为主句是George is going to talk about the geography of his country，而不是George is talking about the geography of his country。
需要明确说明两点：
1。would rather 后可接动词：would rather do...；也可以接从句，此题中便是接从句。
2。would rather所接从句中虚拟语气形式的谓语动词无论表示现在还是将来，都可用用动词的过去式。

Answer 2

答案：B，B
解释：
第一题：for + 一段时间，与现在完成时连用，所以正确答案是B。
第二题：would rather后应用虚拟语气，表示与现在时间相反，用动词的过去式，所以正确答案是B。

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Answer 3

1.B.have dreamed of ，依据下文判断时态是B
2. A.focus ，would rather+do

Answer 4

1 B 2C