题目内容：

Do you know how many people there were in the world 200 years ago? Just one billion. But only 100 years later, the population was increased by 100 percent. In 1971, about 3.5 billion people lived on the earth. Forty years later, the number doubled(翻倍). On October  31st ,2001, the 7 billionth world citizen(公民). A baby girl was born in the Philippines(菲律宾)。At this speed, it will shoot up to 8 billion by the year 2025.

Most new babies were born in developing countries. Most families have four or fiveChildren. In many developed countries. The population is increasing slowly. Most families have only one or two babies. In 1950, about 25 percent of the world′s population  lived in developed countries. By 2050, the number will reduce to 10 percent.

In many developing countries, People are now short of food, water and medicine. What′s worse, farmland is becoming less and less. farmers are moving to cities to make a living. But cities couldn′t satisfy their needs at all.Finally, many people can′t find jobs, and they become poorer and poorer.

To solve these problems, many developing countries are taking measures

to control the population.

根据短文内容，选择正确的答案。

1.What was the population of the world 100 years ago?

A. 100  million          B. 1000  million

C. 2000  million         D. 3500  million.

2.What happened on October 31st , 2001 in the Philippines?.

A. A woman gave birth to seven babies.

B. Seven thousand babies were born this day.

C. A baby girl′s birth showed the world′s population reached 7 billion.

D. A family had their 7th child that day.

3.What does “shoot up” mean in Chinese?

A. 射箭  B. 萎缩  C. 暴涨    D. 加强

4.Which of the following is WRONG?

A. One quarter of the world′s population lived in developed countries in 1950.

B. Most women have four or five children in developed countries .

C. People in many developing countries can′t get good medical care.

D. It′s not a good choice for many farmers to move to cities for a  living

In developed countries.

5. What′s the best title of the passage?

A. The World′s Population Problem.

B. How to Control the Population.

C. changes of Our Living Conditions.

D. Nice Places for People to Live in.