C
The world itself is becoming much smaller by using modem traffic and modem communication means. Life today is much easier than it was hundreds of years ago, but it has brought new problems. On, of the biggest is pollution. To pollute means to make things dirty. Pollution comes in many ways. We see it, smell it, drink it and even hear it.
Man has been polluting the earth. The more people, the more pollution, many years ago, the problem was not so many people. When the land was used up or the river was dirty in one place, man moved to another place. But this is no longer true. Man is now slowly polluting the whole world.
Air pollution is still the most serious. It’s bad for all living things in the world, but it is not the only one kind of pollution man makes. Water pollution kill our fish and pollutes our drinking water. Noise pollution make us angry more easily.
Many countries are making rules to fight pollution. They stop people from burning coal in houses and factories in the city, and from putting dirty smoke into the air.
Pollution by SO₂(二氧化硫) is now the most dangerous kind of air pollution. It is caused by heavy traffic. It is sure that if there are fewer people driving, there will be less air pollution.
The earth is our home. We must take care of it. That means keeping the land, water and air clean. And we must take care of the rise in population at the same time.

A:water pollution B:air pollution C:noise pollution D:rubbish

Many of the world’s pollution problems have been caused by the crowding of large groups of people into the cities. Supply for the needs of the people leads to further pollution by industry. If the rapid increase in human population continues at the present rate, there may be much greater harm. Some scientists speak of the increase in numbers of people as "population pollution".
About 2,000 years ago, the world population was probably 250 million. It reached a billion in 1850. By 1930, the population was two billion. It was three and a half billion in 1988. It is expected to double by the year 2000. If the population continues to grow at the same rate, there would be 25 billion people in the world a hundred years from now!
Man has been using the earth’s resources more and more rapidly over the years. Some of them are almost gone. Now many people believe that man’s greatest problem is how to control population, in time to come, if the present rate of increase continues. Already there is overcrowding in the cities and hunger in some countries. Can man’s rate of increase continue Many people believe that human survival in the future depends on the answer to this question.
The increasing move to the cities of the people is thought to be ______.

A:city pollution B:population pollution C:countryside pollution D:industry pollution

Pollution comes in many ways. We can even hear it. Here it means"______".

A:water pollution B:air pollution C:noise pollution D:rubbish

Many of the world’s pollution problems have been caused by the crowding of large groups of people into the cities. Supply for the needs of the people leads to further pollution by industry. If the rapid increase in human population continues at the present rate, there may be much greater harm. Some scientists speak of the increase in numbers of people as "population pollution".
About 2,000 years ago, the world population was probably 250 million. It reached a billion in 1850. By 1930, the population was two billion. It was three and a half billion in 1988. It is expected to double by the year 2000. If the population continues to grow at the same rate, there would be 25 billion people in the world a hundred years from now!
Man has been using the earth’s resources more and more rapidly over the years. Some of them are almost gone. Now many people believe that man’s greatest problem is how to control population, in time to come, if the present rate of increase continues. Already there is overcrowding in the cities and hunger in some countries. Can man’s rate of increase continue Many people believe that human survival in the future depends on the answer to this question.

A:city pollution B:population pollution C:countryside pollution D:industry pollution

People can help solve the problem of pollution by ______.

A:urging their governments to control litter and waste B:cutting down the use of oil and other oil products C:reducing unnecessary buying, over-consumption and careless disposal of wastes D:Making anti-pollution advertisements

Only the government can ensure that the American people have clean air and pure water. Congress must pass laws to stop manufacturers from polluting the air and water with the waste from their factories. Unless anti-pollution standards are enforced for all, companies that care about a clean environment will go out of business. For example, if Automobile Company X spends money to put an air-pollution control device on their automobiles, their cars will be more expensive than the cars produced by another company. People who don’t have the extra money or who don’t care about pollution will not buy the more expensive cars. Automobile Company X will go bankrupt(破产); that is, it won’t make enough money to pay its workers and to buy materials. It will then go out of business. Of course, no automobile company will make itself go bankrupt on purpose, and the pollution of the land and air and water will go on. But if the government says that all automobile manufacturers must make cars with air-pollution control devices, the cost of all manufacturers will be equal. So the government cannot let companies decide whether or not they want to stop pollution. The government must force manufacturers to clean up the environment by setting anti-pollution standards for everyone.According to the writer, anti-pollution standards ensure that______.

A:no manufacturer will go bankrupt for spending money on pollution control B:less money will be spent in buying pollution control devices C:manufacturers know how to control pollution more effectively D:all manufacturers have to take measures to control pollution

Only the government can ensure that the American people have clean air and pure water. Congress must pass laws to stop manufacturers from polluting the air and water with the waste from their factories. Unless anti-pollution standards are enforced for all, companies that care about a clean environment will go out of business. For example, if Automobile Company X spends money to put an air-pollution control device on their automobiles, their cars will be more expensive than the cars produced by another company. People who don’t have the extra money or who don’t care about pollution will not buy the more expensive cars. Automobile Company X will go bankrupt(破产); that is, it won’t make enough money to pay its workers and to buy materials. It will then go out of business. Of course, no automobile company will make itself go bankrupt on purpose, and the pollution of the land and air and water will go on. But if the government says that all automobile manufacturers must make cars with air-pollution control devices, the cost of all manufacturers will be equal. So the government cannot let companies decide whether or not they want to stop pollution. The government must force manufacturers to clean up the environment by setting anti-pollution standards for everyone.According to the writer, anti-pollution standards ensure that______.

A:no manufacturer will go bankrupt for spending money on pollution control B:less money will be spent in buying pollution control devices C:manufacturers know how to control pollution more effectively D:all manufacturers have to take measures to control pollution