Question

  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.       

Answer 1

1. adding 2. danger 3. three 4. other 5. serious 

6. drive 7. harm 8. reason 9. cause 10. earth