题目内容

20.It's cold outside.Put on more clothes,______ you will catch a cold.(  )
A.orB.andC.soD.but

分析 外面天冷.多穿点衣服,否则你会感冒.

解答 答案:A  or或者,否则;and和,并且;so因此;But但是.根据前后句多穿衣服和你会感冒之间构成在以祈使句为条件下的相反假设.可理解为不多穿衣服你就会感冒.这里前面的句子Put on more clothes为肯定的祈使句,所以后句就应该用表示相反假设的连词,意为否则,要不然;结合选项只有or有此含义.故选A.

点评 此题考查并列连词的辨析.做题时要先结合前后句的语境,准确把握句意,弄清楚前后句之间的关系;再结合选项选出符合句意的连词连接即可.要求学生归纳总结并列连词的用法,记住一些常用的表如下关系的连词,如并列关系、选择关系、转折关系、因果推理关系等.

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