It will be quite a long time _______ she is back again, so don’t be too cross with her.
A.beforeB.since C.that D.until
A

試題分析:考查連詞,since表示自從…;until直到…;時間段+ before,過了多久就……;before主要引導(dǎo)時間狀語從句,意為“先于”“…之后才”“(不多久)就…”。當主句是將來時時,從句謂語動詞須用現(xiàn)在時;當主句是一般過去時或過去完成時時,從句常用過去時。before引導(dǎo)的時間狀語從句不能用于否定式。
點評:連詞是高考�?純�(nèi)容,判斷從句中用哪個連詞,需要記住連詞的用法,需要考生平時多練習,本題主要考查before的用法,要求考生掌握好它的用法
即學即練:We hadn’t been out for long _________ she felt sick.
A. as     B. while      C. after         D. before
選D
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