1、 阅读文章，选择正确答案，回答问题。The worlds population continues to grow. There are now about 4 billion of us on the earth. That could reach 6 billion by the end of the century and 11 billion in a further 75 years. Experts have long been concerned about such a growth. Where shall we find food, water, jobs, houses,
2、 schools or health care for all these people?A new study shows that the situation maybe changing. A large and raped drop in the worlds birth rate has taken place during the past 10 years. Families generally are smaller now than they were a few years ago. It is happening in both developing and indust
3、rial countries.Researchers said that they found a number of reasons for this. More men and women are waiting to be married and are using birth control methods to prevent or delay pregnancy(怀孕). More women are going to school or working at jobs away from home instead of having children. And more gove
4、rnments, especially in developing nations, now support family planning programs to reduce population growth.China is one of the nations that have made great progress in reducing the population growth. China has already cut its rate of population growth by about one half since 1970.Each Chinese famil
5、y is now urged(鼓励) to have no more than one child. And the hope is to reach a zero population growth with the total number of births equaling the total number of deaths by the year 2000.Several nations in Europe already have fewer births than deaths. Experts said that these nations could face a seri
6、ous shortage of workers in the future. And the person who are working could face much higher taxes to help support the growing number of retired old people.1. Population growth is happening _.A. in all countriesB. in a few countries onlyC. in most countriesD. mainly in developing countries2. In the
7、sentence “Experts have long been concerned about such a growth”, the phrase “concerned about” probably means “_”.A. worried about B. interested inC. engaged toD. satisfied with3. The worlds birth rate has dropped because _.A. people get married at a much later timeB. more birth control methods have been usedC. women would rather go to study or work than have childrenD. all of the above4. By the year 2000, the number of births and the number of deaths in China will _.A. be greatly differentB. be equalC. drop a great dealD. become much答案：1. C2. A3. D4. B