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.

答案

1.B　2.D　3.A　4.D　

If humans were truly at home under the light of the moon and stars, we would go in darkness happily, the midnight world as visible to us as it is to the vast number of