Question

【题目】阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
D
A warm drink of milk before bed has long been the best choice for those wanting a good night’s sleep. But now a study has found it really does help people nod off—if it is milked from a cow at night.21*cnjy*com
Researchers have discovered that “night milk” contains more melatonin(褪黑激素), which has been proven to help people feel sleepy and reduce anxiety.
The study, by researchers from Seoul, South Korea, involved mice being fed with dried milk powder made from cows milked both during the day and at night.
Those given night milk, which contained 10 times the amount of melatonin, were less active and less anxious than those fed with the milk collected during daytime, according to the study published in The Journal of Medicinal Food.
Night milk quickened the start of sleep and caused the mice to sleep longer.
While the effect of cows milk harvested at different time has not been tested on humans up to now, taking melatonin drugs has been suggested to those who are struggling to fall asleep at night.
Previous studies have also indicated that milk can be excellent for helping sleep because of the calcium content, which helps people to relax.
Milk is also sugar-free and additive-free with nutritionists recommending skimmed milk as the best choice before bed as it is the least fattening. The more fat you take in before bedtime, the greater burden you will put on your body at night.
（1）According to the text, the mice fed with daytime milk_______.
A.started sleep more easily
B.were more anxious
C.were less active
D.woke up later
（2）Which of the following is true of melatonin according to the text?
A.It's been tested on mice for ten years
B.It can make people more energetic
C.It exists in milk in great amount
D.It's used in sleeping drugs
（3）What can be a suitable title for the text?
A.Night Milk and Sleep
B.Fat Sugar and Health
C.An Experiment on Mice
D.Milk Drinking and Health
（4）How does the author support the theme of the text?
A.By giving examples.
B.By stating arguments.
C.By explaining statistical data.
D.By providing research results.

Answer 1

【答案】
（1）B
（2）D
（3）A
（4）D
【解析】本文讲的是牛奶和睡眠。
（1）推理判断题。根据第四段第一句Those given night milk, which contained 10 timesthe amount of melatonin, were less active and less anxious than those fed withthe milk collected during daytime,晚上喝牛奶的那些比白天和牛奶的那些更不活泼，更不焦虑。可知白天喝牛奶的那些更焦虑。故选B。
（2）推理判断题。根据第五段Night milk quickened thestart of sleep and caused the mice to sleep longer.晚上牛奶加快睡眠的开始，使老鼠睡的时间更长。可知D项符合题意。
（3）主旨大意题。根据第二段Researchers have discoveredthat “night milk” contains more melatonin(褪黑激素), which has been proven to help people feel sleepyand reduce anxiety. 研究者已经发现晚上牛奶包含更多的褪黑激素，这已经被证明能帮助人们感到困倦和减少焦虑。可知A项符合题意。
（4）推理判断题。根据前三段But now a study has found it really does help peoplenod off—if it is milked from a cow at night.一项研究表明—--；Researchers have discovered that “night milk” containsmore melatonin(褪黑激素), whichhas been proven to help people feel sleepy and reduce anxiety.研究者已经发现晚上牛奶包含更多的褪黑激素，—； The study, by researchers from Seoul,South Korea, involved mice being fed with dried milk powder made from cows milkedboth during the day and at night. 来自汉城的研究者—-。可知作者是通过提供研究结果来支持文章主题的。故选D。