单选题
下面每篇短文后有5道题。请根据短文内容,为每题选定1个最佳选项。
{{B}}第一篇{{/B}}
Sleeplessness

Insomnia or sleeplessness is a common complaint of women as they enter into menopause. Insomnia means having trouble falling asleep for staying asleep or the feeling that your sleep was no! adequate for you. For women who are having night sweats, their sleep is broken by frequent awakening and therefore not refreshing. Generally once the night sweats are controlled a normal sleep pattern returns. If it doesn't, it may be, or have become chronic insomnia. How do you know?
If you suffer from insomnia every night or most nights for a period of one month then you have chronic insomnia. If you're not having night sweats then it's time to look for other causes of sleeplessness. Depression and anxiety disorders are the most common causes of chronic insomnia. If you feel depressed you need to be checked by a qualified health care provider. Movement disorders such as restless leg syndrome are second on the list of insomnia for them; there are new medicines that may help. Other common causes are shift working and pain.
In up to 30% of people with chronic insomnia no cause can be identified. Medical treatment of these people has generally been with sleeping pills. It is estimated that 25% of the adult population in America took some type of medicines for sleep last year. It is generally agreed that sleeping pills should only be in the lowest dose and for the shortest possible time.
Sleep hygiene is directed at changing bad sleep habits. The recommendations are:
-Go to bed only when sleepy.
-Do not wait up to a specified time.
-Avoid caffeine and alcohol in the evening, etc.
单选题 The word "insomnia" in the first paragraph means ______.
【正确答案】 A
【答案解析】[解析] 本文第二句给了“insomnia”的定义,“Insomnia means having trouble falling asleep or staying asleep or the feeling that your sleep was not adequate for you.”至少这三种情况都可叫做失眠。
单选题 How many possible causes of sleeplessness are mentioned in the second paragraph?
【正确答案】 B
【答案解析】[解析] 共提到六种,即night sweats,depression,anxety disorders,movement disorders,shift working,pain。
单选题 The expression "second on the list" in the second paragraph means ______.
【正确答案】 B
【答案解析】[解析] 因第二段主要列举失眠原因,second on the list指从重要性方面来看位于第二的原因。
单选题 Concerning the use of sleeping pills, which of the following statements is true?
【正确答案】 D
【答案解析】[解析] 第三段末句提到了安眠药“…sleeping pills should only be in the lowest dose…”即应使用最小剂量。
单选题 Which of the following does not fit with sleep hygiene?
【正确答案】 A
【答案解析】[解析] 最后一段提出建议:困了就睡觉;不要非等到指定的时间;晚上不要摄取咖啡因和酒精等物质。因此应当选择A项。