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You mustn’t drive _____ you have drunk.
A.although B.if C.before D.unless
B

试题分析:句意:如果你喝了酒,就不要再开车。although尽管;if如果;before在……以前;unless除非。根据句意故选B。
点评:本题难度适中。连词是近几年高考常考的语法项目,主要考查的是它们的用法及意义,还需正确理解句意及正确分析句子的成分才能做出正确的判断。这里考生容易误选C。
即学即练:All the dishes in this menu,_________ otherwise stated, will serve two to three people.
A. as        B. if      C. though       D. unless
解析:D。句意:除非有特别的说明,要不然这个菜单上的所有的菜只供两到三个人食用。unless表示“如果不……,除非……”,符合句意。
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