Ⅰ. Read, choose and answer.
根据短文内容，按要求完成练习。
Many Americans think that fast food is delicious and handy (方便的). They love grabbing [(匆忙地)取,吃] lunch at fast food chains (连锁店). They eat it about twice a week on average (平均). But fast food is really bad for health.
A person needs about 2,000 calories (卡路里) every day. Believe it or not, three hamburgers and four packs of potato chips add up to more than 2,500 calories. If you always eat fast food for meals, it's very easy to get fat.
Most Americans know that fast food isn't good for them, but they are used to (习惯于) having it. In fact, fast food is now a part of American life. About 96% of pupils in America know about the popular fast food business.
In America, 33% of the children are overweight (超重的). They really need to change their diet and do more exercise.
A. 将正确答案的字母序号写在括号内。
() 1. Many Americans like eating fast food because .
A. it is cheap
B. it is delicious and convenient
C. it is healthy
() 2. Lots of pupils in America know about the popular fast food business because .
A. fast food is a part of American life
B. they know fast food isn't good for their health
C. 33% of the children are too heavy
() 3. In America, 33% of the children are too heavy because .
A. they eat lots of fast food every week
B. they eat fast food twice a week
C. they have lunch at a popular fast food restaurant
B. 阅读短文，回答问题。
1. Why is it easy to get fat if you always eat fast food?

2. Do American children have good eating habits? Please give them some advice.

A. 1. B 2. A 3. A
B. 1. Because fast food has more calories than you need. They can make you get fat.
2. No, they don't. I think they should eat less fast food and do more exercise.（答案非唯一，仅供参考）