The world’s population continues to grow. There now are about 4 billion of us on

游客2024-12-29 36

问题 The world’s population continues to grow. There now are about 4 billion of us on
earth. That could reach 6 billion by the end of the
century and 11 billion in a farther 75                                                 【M1】______
years. Experts have long been concerned about such a growth. Where will we find the
food, water, works, houses, schools and health care for all these people? A major new 【M2】______
study shows that the situation may be changing. A large and rapid drop in the world’s
birth rate have taken place during the past 10 years. Families generally are smaller now 【M3】______
than they were a few years ago. It is happened in both developing and industrial nations.【M4】______
Researchers said they found a number of reasons for this. More men and women are
waiting more longer to get married and are using birth control devices and methods to 【M5】______
prevent and delay pregnancy. More women are going to school or working at jobs away    【M6】______
from home instead having children. And more governments, especially in developing       【M7】______
nations, now support family planned programs to reduce population growth. China is    【M8】______
one of the nations that has made great program in reducing its population growth.       【M9】______
China has already cut off its rate of population growth by about one half since 1970. 【M10】______ [br] 【M5】

选项

答案 more→more。

解析 longer本身就是比较级，不需再加more。

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