题目内容
What is pollution?
Pollution means a 1 dirty or harmful things to land,air,water and so on. It is bad for animals and plants,and it even makes people's health in d 2 . In our daily life,we can see different kinds of pollution in many places. There are t 3 main forms of pollution;land pollution,air pollution and water pollution.
Land pollution is caused by solid(固体的) waste,such as cans,bottles and some o 4 things. It makes the environment look very bad. However,air pollution is more s 5 than land pollution. It is much worse in cities and towns because of the fumes (废气)from traffic and the waste from human activities. When people d 6 their cars,they produce fumes with C02,N02 and S02. The fumes does great h 7 to people's health. And human activities are also the main r 8 for water pollution. In some places,it has caused the shortage of fresh water.
Different kinds of pollution will c 9 many health problems. People have realized (意识到)they must change this serious situation.
We have only one e 10 We must try our best to help protect our environment for the future wherever we are.
1. 2. 3. 4.
5. 6. 7. 8.
9. 10.
1. adding 2. danger 3. three 4. other 5. serious
6. drive 7. harm 8. reason 9. cause 10. earth
