【正确答案】
B
【答案解析】[听力原文] Good evening. I am doctor Winkle, saying hello to you from the school radio station. Do you have trouble sleeping at night? Tossing and turning in your bed can be a very painful experience. Then maybe this is for you. When you worry about needing sleep and twisting around, trying to find a comfortable position, you're probably only making matters worse. What happens is that your heart rate actually increases, making it more difficult to relax. You may also have some bad habits that contribute to the problem. Do you rest frequently during the day? Do you get virtually no exercise, or do you exercise strenuously late in the day? Do you think about sleeping a lot or sleeping late on weekends? Any or all of these factors might be leading to your insomnia by disrupting your body's natural rhythm. What should you do then on those sleepless nights? Don't bother with sleeping pills. They can actually cause worse insomnia later. The best thing to do is to drink milk or eat cheese or tuna fish. They are all rich in the amino acid that helps produce in the brain a neurotransmitter that induces sleep. This neurotransmitter will help you relax, and you'll be on the way to get a good night's sleep. Until tomorrow's broadcast, this has been another in the series 'Hints for Good Health' by Doctor Winkle. What happens when you turn and twist to get comfortable? 1．四项均为句子。 2．三项含有与睡眠、休息有关的词汇(relax，sleep，sleeping)。 3．四项均提及第二人称(your，you)。 结论：本题可能考查对睡眠情况的描述，从句式来看，可能是谈到某种影响。 短文在开始部分提到，如果担心自己难以入睡，一直辗转反侧试图找一个舒服的姿势的话，你很可能只会使情况更糟，因为这时候心率会加快，从而使人更难以放松、入睡，故选B。
【正确答案】
C
【答案解析】[听力原文] What sometimes causes people to have trouble sleeping? 1．四项均为名词短语。 2．两项含有与缺少有关的词汇(failure，lack)。 3．三项含有与睡眠、休息有关的词汇(rest，sleep，going to bed)。 结论：本题可能是问什么因素会导致失眠。 短文提到，“可能还有其他一些不好的习惯会导致失眠。你白天是不是经常休息?你是不是一点都不锻炼?抑或是你很晚的时候还做剧烈运动?你周末的时候是不是想多睡一会或睡懒觉?其中任何一个因素或者所有这些因素都可能导致失眠，因为它们会打乱你身体的自然节奏。”将各选项中的叙述与短文提及的内容比对即可得出正确选项为C。D(睡前吃奶酪)在后文中虽有提及，但却属于有助于睡眠的做法。