The one-child policy in our country has made most families much smaller than before. That is to say, there
are fewer children in a family. But the population of China is still growing faster. Why? In fact, it's a serious
problem not only in China, but also in the whole world. It's reported that the world population is expected to
reach 9,200,000,000 by 2050. There are two important reasons. First, there are still more and more babies born
every year. Next, people in the world can live much longer than before. 
     The earth is too tired, but it has to burden (擔負) more in the future. Who can save her?

1. The passage tells us that the whole world is suffering from (為……苦惱) the           .

A. pollution
B. population
C. flood
D. hunger

2. The underlined word "expect" means _______ in the sentence.

A. 希望
B. 祝愿
C. 期待
D. 預(yù)測

3. The population of the world will be about ______ by the year 2050.

A. 92 million
B. 92 billion
C. 9.2 billion
D. 9.2 million

4. Which of the following is NOT true?

A. The population of China is still growing.
B. The number of women keeps growing these years.
C. It's difficult for us to control (控制) the population in a few years.
D. One of the reasons for the population problem is that people can live longer than before.

5. Which is the best title for the passage?

A. China's Population
B. The Family Planning
C. The Population Problem
D. China's One-Child Policy