A: Hi, Wang Tian. Would you like to go shopping with me this Sunday?
B: Sorry, Li Xiang.
A: Yes. It's a problem.
B:
A: Oh, the population is growing faster and faster.
B: If the population keeps growing like this, there will be standing room only.
A:
B: Everyone in the world should care for the population problem.
A:
B: Can you give me an example?
A: Robert Wyman, a professor from Yale University. He is famous for" Open Yale course: Global Problems of Population Growth(耶鲁大学开放课程: 全球人口增长问题) ".
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A. There will be little room for each person. B. Yes, that will be a serious problem. C. He thinks students should study population problems. D. There are too many people in the shops on Sundays. E. Now many people are trying their best to study it. F. It's reported that China has got more people than before. G. Do you think the world's population will stop increasing? |
Today more and more people live in cities. So there is usually little room in a city to grow food.1of the land in a city is used 2 homes, shops, roads and parks. Most food for city people is grown in the country. It is often brought to the city by3, train and plane. Some food 4 comes into the city by car.
Water is5 thing that cities get from the country. Everyone needs water every day. We use a little of it for6, but we use even more to 7bathtubs(浴缸) and wash streets.
The water used in cities comes mostly from the rain. But people8use the rain that falls on cities. The rain becomes dirty as it falls through dirty air. Once it hits city buildings or streets, the rain will pick up more dirt. It is not good for drinking or bathing.
So cities must reach out to the 9 country for water. There the rain falls through air onto trees and grass. The fallen rain runs 10 rivers and lakes. So it is important to keep both cities and the country clean.
The village about two thousand.
is the population of Henan Province?
The room was small hold so many people.
you at the moment?
babies are born every day in the city?
