Question

【题目】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.

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’sbeentestedonmicefortentimes.

B. Itcanmakepeoplemoreenergetic.

C. It’susedinsleepingdrugs.

D. Itexistsinmilkingreatamount.

【3】Whatcanbeasuitabletitleforthetext?

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】C

【3】A

【4】D

【解析】本文是一篇研究报告，指出在夜间取自奶牛的牛奶＂night milk＂含有大量的褪黑激素，能帮助人们入睡，减少焦虑。

【1】推理判断题。根据第四段中的＂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＂可推知，饮用在白天取自奶牛的牛奶的老鼠更焦虑。所以B项正确。

【2】推理判断题。根据第六段中的＂taking melatonin drugs has been suggested to those who are struggling to fall asleep at night＂可知，褪黑激素被用在安眠药中。所以D项正确。

【3】标题选择题。根据第一段中的＂But now a study has found it really does help people nod off — if it is milked from a cow at night＂、第二段以及第五段内容可知，全文围绕＂Night Milk and Sleep＂展开，告诉读者饮用在晚上取自奶牛的牛奶有助于睡眠。所以A项正确。

【4】推理判断题。通读全文，尤其是根据＂But now a study＂＂Researchers have discovered that＂＂The study, by researchers from Seoul, South Korea＂可知作者是通过提供研究结果来支撑文章的主题的。故选D。