Question

【題目】 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’s been tested on mice for ten times.

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】

這是一篇說明文。人們都知道，晚上睡覺前喝一杯暖暖的牛奶會睡個好覺。不過一項新的研究表明，喝夜晚產的牛奶比喝白天產的牛奶更有助于睡眠。

【1】細節(jié)理解題。根據第四段中的“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.” 那些在喝夜晚產的牛奶的老鼠，其褪黑激素的含量是喝白天產的牛奶的老鼠的10倍，比喝白天產的牛奶的老鼠更不活躍，也不那么焦慮�？芍�，喝夜晚產的牛奶的老鼠相對焦慮會更少些，換言之，喝白天產的牛奶的老鼠焦慮會多些。故選B項。

【2】細節(jié)理解題。根據第六段中的“taking melatonin drugs has been suggested to those who are struggling to fall asleep at night.”有人建議夜間難以入睡的人服用褪黑激素藥物�？芍�，此處建議有睡眠障礙的人服用含褪黑激素的藥，由此可推知，它已被用于助眠藥物中。故選D項。

【3】主旨大意題。由文章第一段中的“But now a study has found it really does help people nod off—if it is milked from a cow at night.”但現在一項研究發(fā)現，如果牛奶是在晚上從奶牛身上擠奶的，它確實能幫助人們打盹；最后一段“nutritionists recommending skimmed milk as the best choice before bed as it is the least fattening.”營養(yǎng)學家推薦脫脂牛奶是睡前的最佳選擇；同時全文內容圍繞喝夜晚產的牛奶與睡眠展開。故選A項。

【4】推理判斷題。根據“But now a study has found…”，“Researchers have discovered that…”，“The study,by researchers from…”以及“Previous studies have also indicated…”可以發(fā)現文章中多次出現了研究者及其研究結果，可知，在這篇文章作者是通過提供研究結果來支持文章主題的。故選D項。

概括主旨的方法是：先看首尾或各段開頭再看全文找主題句，若無明顯主題句，就通過關鍵詞句來概括(如議論文中尋找表達作者觀點態(tài)度的詞句，記敘文尋找概括情節(jié)和中心的動詞或反映人物特點的形容詞)。文中出現兩種或兩種以上的不同觀點時，務必牢記作者的觀點才是體現全文中心的。該文是介紹一個研究結果的，該類文章的中心一般就在第一段。因此，考生直接抓住第一段中的“But now a study has found it really does help people nod off—if it is milked from a cow at night.”即可找到文章中心。