题目内容：

“An apple a day keeps the doctor away.” Well, milk may work in the same way!

Milk is the natural food for mammalian(哺乳动物) babies. It helps them grow strong because it is rich in protein(蛋白质), calcium(钙) and vitamins. Milk can also help you sleep better because it calms you down.

But remember to drink milk with care. Find out how old the milk is. Make sure it is fresh and hasn’t gone bad. Don’t drink milk when your stomach is empty. Eat some bread or corn at the same time. That’ll help you take in more protein and vitamins.

Doctors say teens need at least 500ml of milk a day. That’s two or three cups. Milk-drinking started long ago, as early as 6,000-8,000BC. At that time people started to keep cows, sheep and goats to get their milk. Of course what you drink today isn’t that fresh from the cow. People cool the fresh milk down to 40C to stop the bacteria(细菌)growing. In factories, milk is pasteurized(灭菌) to stop it growing bad. After disinfections(消毒) and packaging, it goes to the supermarkets.

Yoghourt also comes from milk. People make some special bacteria to change the taste of milk and make the nutrients(营养) in it easier for people to take in. Maybe that’s why it’s getting more popular with people!

1.Milk helps people grow strong because it is rich in ________.

A. Calcium      B. protein

C. vitamins      D. A, B and C

2.The sentence “An apple a day keeps the doctor away.” tells us that________.

A .the doctor likes to eat apples every day

B. the doctor doesn’t like apples at all

C. the doctor eats an apple each day

D. apples are good for our health

3.When you drink milk , you’d better________.

A. find out when the milk was produced

B. make sure it’s fresh and hasn’t gone bad

C. not drink milk when your stomach is empty

D. do all of the above

4.Why is it better to eat some bread or corn while drinking milk ?

A. Our body can take in more protein and vitamins in this way.

B. That’ll help us grow taller and stronger.

C. That’ll help us taste milk better.

D. We’ll still feel hungry without eating some bread or corn.

5.Which of the following statements is true ?

A. One cup of milk is good enough for teens each day.

B. Drinking milk is likely to make teens sleepy.

C. To stop the bacteria growing , people cool the fresh milk down to 40C.

D. Yoghourt is one kind of milk which has gone bad