UC知道急啊~~大家帮帮我 英语4
来源：百度知道 编辑：UC知道 时间：2024/05/21 11:54:18
Air pollution can cause both airplane and auto accidents because it cuts down visibility. There are other possible health dangers from air pollution that we do not know much about. For example, scientists are trying to find out whether chemicals that reach us from the air may cause changes in our cells. These changes might cause babies to be born with serious defects. Scientists are trying to learn how all the many chemicals we are apt to take into our bodies from air, water, food and even medicines act together to affect our health and the way our bodies work. That is another reason why it is so important to begin to control pollution now instead of waiting until we learn all the answers.
Air pollution costs us a lot of money. It dirties and corrodes our buildings. It damages farm crops and forests. It has a destructive effect on our works of art. The cost of all this damage in the United States is thought to be more than $16 billion every year. This is far more than the cost of
Air pollution costs us a lot of money. It dirties and corrodes our buildings. It damages farm crops and forests. It has a destructive effect on our works of art. The cost of all this damage in the United States is thought to be more than $16 billion every year. This is far more than the cost of
31.D. it prevents pilots and drivers from seeing things clearly
从because it cuts down visibility.得
32. C. babies’ health 从These changes might cause babies to be born with serious defects
33.A. have been proved by scientists
34.C. doesn’t think it most important to find answers for all these questions about air pollution
35.C. more and more money in controlling air pollution will be wasted
1. D
2. C
3. B
4. D
5. A
DCBCC我做的，不一定对哈