题目内容
17.Schools in the south tend to be better equipped,______ those in the north are relatively poor.( )| A. | while | B. | since | C. | when | D. | as |
分析 南方的学校往往有更好的装备,然而北方的学校则相对较差.
解答 答案A.
while作并列连词用,意思为"而,然而",表前后意义上的对比或转折.since意思是"自从…以来"时,引导时间状语从句;意思是"既然"时,引导原因状语从句.when"在…时候",引导时间状语从句.as意思是"随着"时,引导时间状语从句;意思是"因为"时,引导原因状语从句;意思是"尽管,虽然"时,引导让步状语从句.分析可知前后两句话之间是逻辑上的"转折"关系,再联系句子表达的意思可知答案选A.
点评 本题考查并列连词的用法.并列连词用来连接平行的词、词组和分句.如:and,but,or,nor,so,therefore,yet,however,for,hence,as well as,both…and,not only…but also,either…or,neither…nor,(and)then 等.常用来表示转折关系的并列连词有如下几个:but 但是;yet 然而;still 仍然;while 然而.
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