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They decided to chase the cattle away ______ it did more damage.A、unlessB、until
They decided to chase the cattle away ______ it did more damage.A、unlessB、until
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2023-09-22
11
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问题
They decided to chase the cattle away ______ it did more damage.
选项
A、unless
B、until
C、before
D、although
答案
C
解析
本题测试的是时间状语从句的用法。全句的意思是:“他们决定在牛造成更大破坏前把牛赶走了。”unless(除非,如果不)表条件;although(虽然)表让步;until(直到……才)表时间;before(在……以前)也表时间。until和before两者的差别如下:如果主句或简单句中的谓语动词为非延续性动词的肯定式,只能用before,不可以用until;如果主句或简单句中的谓语动词为延续性动词或表示状态的动词的否定式,要用 before;在it wasn’t until...that强调结构中,不用before;not until可以位于句首,表示强调,句子主谓要倒装。故应选答案C。
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