Question

Try ___she might,Sue couldn't get the door open.

A.If B.when C.since D.as选那个

Answer 1

答：选D

解析：as意为“尽管”时引导让步状语从句，把动词放在as之前，结构是：动词原形+ as +主语+谓语的另外一部分。
拓展：as / though引导的让步从句必须表语或状语提前（形容词、副词、分词、实义动词提前）。
Child as /though he was, he knew what was the right thing to do.

注意： a.　句首名词不能带任何冠词。
　　　　b.　句首是实义动词，其他助动词放在主语后。如果实义动词有宾语和状语，随实义动词一起放在主语之前。
Try hard as he will, he never seems able to do the work satisfactorily.

虽然他尽了努力，但他的工作总做的不尽人意。

Answer 2

D
这是一个虚拟语气的倒装句，原句是
As she might try,Sue couldn't get the door open.
意思是，即使她尝试了，她也打不开打扇门，as表示即使的意思。

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Answer 3

选D。 类似于run as quickly as you can 的句子。

Answer 4

D
as 引导的让步状语从句，一定要倒装。

Answer 5

D