“People who have longer sleep every night，” the Planck scientists wrote, “appear to be able to strengthen their immune systems and be better protected.”

　　【语篇解读】　随着天气变冷，越来越多的人将会感冒。如何才能在寒冷的季节避免感冒的侵袭？研究表明，充足的睡眠将会保护你不受感冒的威胁。

　　25．Which of the following can be the best title of the passage?

　　A．The Best Way to Avoid Catching a Cold in Winter.

　　B．The Relationship between Sleep and Immunity.

　　C．Lack of Sleep Increases the Risk of Catching a Cold.

　　D．How to Strengthen Your Immune Systems?

　　答案　C　[主旨大意题。通读全文可知本文主要讲述的是充足的睡眠可以减少得感冒的机会，也就是说缺乏睡眠会增加得感冒的风险。故C可作文章的标题。]

　　26．From the passage we can infer that ________．

　　A．vitamin C and echinacea can help resist colds

　　B．the longer you sleep, the healthier you will be

　　C．people didn't know the relationship between sleep and colds before

　　D．people's immunity can be gained mostly from sleep

　　答案　A　[推理判断题。根据短文第一句可知答案。B项没有依据；C项根据But paying attention to an old piece of advice about having enough sleep every day might be more important可排除；D项没有依据。]

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