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题目
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Not until actually ________ with water shortage ________ appreciate the value of water to a region.
A.facing; one canB.faced; can oneC.faced; one cannotD.facing; cannot one

答案
B
解析

试题分析:考查状语从句的省略式和倒装句:not until后面直接用非谓语动词做状语,说明是省略了从句的主语和be动词,而be faced with是“面对”所以是过去分词,AD是错的,not until引导的时间状语从句放在句首,主句用部分倒装,而且是肯定式。句意:直到确实缺水,一个人才能真正欣赏水对一个地区的价值。选B。
点评:如果主句的主语和从句的主语一致,且状语从句的谓语动词中有 be 动词,从句的主语连同be 可一起省略,该类状语从句多为时间、地点、条件、方式或让步等,连词为when, while, though, if, unless, although, as if 等,后面通常接分词、不定式、形容词、名词等。以否定词开头的句子要求部分倒装。注意下列句子中助动词或情态动词提前、甚至补充助动词的用法:例:Not until yesterday did little John change his mind.(小约翰直到昨天才改变了主意。)
核心考点
试题【Not until actually ________ with water shortage ________ appreciate the value of】;主要考察你对倒装句等知识点的理解。[详细]
举一反三
Her pronunciation is as good as, if ____than, her teacher"s.
A.no betterB.not betterC.no goodD.not good

题型:不详难度:| 查看答案
I don’t think she’ll be upset, but I’II see her in case______________.
A.she willB.she isC.she doesD.she would

题型:不详难度:| 查看答案
Only when I read this story for a second time _________to appreciate its beauty.
A.did I beginB.that I beginC.I beganD.had I begin

题型:不详难度:| 查看答案
-----I am sorry for having been so rude to you.
---------That’s OK. I am sure you didn’t___________.
A.have toB.mean toC.hope soD.want so

题型:不详难度:| 查看答案
The room, although_________ to be kept locked, was often left open.
A.supposingB.supposedC.to be supposedD.having supposed

题型:不详难度:| 查看答案
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