If we ___________some measures, we might have prevented the environmental pollu - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

If we ___________some measures, we might have prevented the environmental pollution．

A．take

B．had taken

C．took

D．have taken

答案

解析

考查虚拟语气。与过去事实相反时，从句用过去完成时，主句用情态动词+have done.句意：如果我们采取了一些措施，我们也许就可以阻止环境污染。

核心考点

试题【If we ___________some measures, we might have prevented the environmental pollu】；主要考察你对虚拟语气等知识点的理解。[详细]

举一反三

—Sorry, Mr. Wang. I didn’t finish the assignment yesterday.
Oh, you ________ have done it as yesterday was the deadline.

A．must

B．mustn’t

C．should

D．shouldn’t

题型：不详难度：| 查看答案

—Do you know where David is? I can’t find him anywhere.
—Well . He have gone far— his coat’s still here.

A．shouldn’t

B．mustn’t

C．can’t

D．wouldn’t

题型：不详难度：| 查看答案

We shouldn"t have come north for Christmas vacation. If we _______, we wouldn"t be stuck in the snow right now.

A．wasn"t

B．didn"t

C．hadn"t

D．weren"t

题型：不详难度：| 查看答案

How ___Mike have refused such a good opportunity to go abroad for further study?

A．need

B．must

C．can

D．might

题型：不详难度：| 查看答案

Meng Peij ie，an ordinary girl who was among the 10 people awarded the title of “Touching China 2011”，must be both optimistic and strong-minded. Otherwise, she _______ her disabled adoptive mother for 12 years.

A．mustn"t have looked after	B．can"t have looked after
C．couldn"t have been looking after	D．shouldn"t have looked after

题型：不详难度：| 查看答案

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