题目内容
—How long do you think it will be________ China sends a manned spaceship to the moon?
—Perhaps two or three years.
A. when B. until C. that D. before
【答案】
D
【分析】before(表示时间)以前,本句为要过多长时间,中国才能发射人造宇宙飞船到月球上。
【高考考点】before的用法
【易错点】:C项,误认为是强调句型。
【备考提示】:掌握before的用法。强调句型的解题窍门是,把基本节构中的It+be…..+that/who去掉后,原句子不缺成分,依然成句,表达清楚。
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