题目内容
19.______ you don't lose heart,I'm sure you can pass the coming examination.( )A. | Unless | B. | As long as | C. | If not | D. | Although |
分析 只要你不灰心丧气,我确定你一定能够通过即将来临的考试的.
解答 答案B.if not指后面所跟的从句与前面提到的情况相反,意为:如果不这样的话;其后面不跟句子,一般都是单独使用,可排除C.unless"除非,如果不",在意义上相当于if…not,因此在有些场合中unless与if…not可互换使用,引导条件状语从句.as long as"只要",引导条件状语从句.although"尽管,虽然",引导让步状语从句.分析可知前后两句话之间是逻辑上的"条件"关系,可排除D;再结合句子所表达的意思"只要你不灰心丧气,我确定你一定能够通过即将来临的考试的."可知答案选B.
点评 本题考查从属连词的用法.连词的用法辨析,要注意分析主从句之间的逻辑关系,再确定相应的连词,同时注意不同的连词的语义及用法区别.if not指后面所跟的从句与前面提到的情况相反,意为:如果不这样的话;其后面不跟句子,一般都是单独使用.
If they arrive before I leave,well and good.If not,the responsibility will be mine.如果他们在我离开之前到达,那自然很好.但如果不是的话,那责任就是我的了.
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