The earth is our home；we must take Care of it. This means keeping the land，air and water   clean.

    Pollution is a dirty word. To pollute means to make things unfit(不合适的)or unclean to use. Pollution comes in many ways. We see it，smell it，taste it and drink it. Pollution is beginning to threaten(威胁)our health，or happiness and our life.

Man. has been polluting the earth from the time he first made fire，washed his clothes in the river and threw his waste on the ground. When land was used up or water became dirty. Men moved to another place. At first the problem was not so serious because there was plenty of clean air，land and water. There weren't so many people then and their wants(需求)were fewer. All the dirty things could be absorbed(吸收)by nature and soon. covered over(恢复)， But this is no longer true. The increase of population(人口增长)and the development of industry have changed that. Man is slowly polluting. his environment.

Through the use of poison(农药)，mall has polluted land! killing the animal. By putting dirty water and chemicals into rivers and lakes we have polluted our drinking water，killing the fish.

Our increasing population is part of the. problem. More people more waste.

    Where is this all to end? Are we turning the world into a big rubbish dump，or is there any hope that we can get rid of(摆脱)the pollution ?Luckily，millions of people have been warned of the danger of pollution. Large numbers of people are now working hard to bring pollution under

1.Which sentence is WRONG?

       A. We live on the earth，so we should look after it.

       B. To pollute means to make air ，water and land unfit for use.

       C. All the waste produced by modem industry can be absorbed.

       D. Man is now fighting against different kinds of pollution.

2.In this passage the word "chemicals" means

       A.化学         B.化学物质        C.化学的        D.医学的

3. From the sentences "More people more waste"，we know that _______.

       A. because of the increase of population and the development of industry，more and more waste is produced

       B. we need more people，not more waste

       C. there isn't any hope that we can get rid of the pollution

       D. more people have been warned of the danger of more waste.

4.From the passage we can know that now man_______.

       A. doesn't know how to control pollution

       B. still doesn't realize how serious pollution is

       C. is doing something to control pollution

       D. begins to understand the pollution

 

Two magazines recently listed the best cities to live in. Here are two of the cities listed as “the world’s best.”
SAN JOSE, COSTA RICA  The city has comfortable weather all year round (15℃ to 26℃). Housing is not very expensive in San Jose. Also, many of the city’s older neighborhoods are very beautiful and have small hotels and cafés.Beautiful mountains are around the city. Lots of people go sightseeing there every year. But air pollution is a problem in the city center.
HONG KONG, CHINA    This lively city—once a small fishing village—is today an international business center. It is an interesting mix of East and West, old and new. Modern tall buildings are next to small temples (庙宇). Popular nightclubs are close to traditional teahouses. Busy people fill the streets at all hours of the day. But outside the city, there are parks for walking or relaxing. Hong Kong is famous for its wonderful native dishes. There’s also food from Europe, North America, and other parts of Asia. However, this small city has a large population of nearly seven million! That’s why housing is often very expensive. Traffic and air pollution are also a problem.
【小题1】Which of the following is NOT mentioned about San Jose?

A．The weather.

B．The mountains.

C．The air.

D．The traffic.

【小题2】What makes Hong Kong the world’s best according to this passage?

A．The lively city and the wonderful dishes.

B．The large population and the traffic.

C．The expensive housing.

D．The beautiful temples.

【小题3】 The writer thinks housing in Hong Kong is expensive because ________.

A．it is a small fishing village	B．it is a mix of East and West
C．it is a beautiful city	D．there are too many people in the city

【小题4】What do the two cities have in common?

A．They both have beautiful mountains.	B．They both have a large population.
C．Air pollution is a problem in both.	D．They are both crowded.

【小题5】From the passage, we can know that       .

A．San Jose and Hong Kong are the only two cities of the world’s best

B．San Jose has more natural sights than Hong Kong does

C．the weather in both cities is fine

D．San Jose used to be small fishing village

Two magazines recently listed the best cities to live in. Here are two of the cities listed as “the world’s best.”

SAN JOSE, COSTA RICA  The city has comfortable weather all year round (15℃ to 26℃). Housing is not very expensive in San Jose. Also, many of the city’s older neighborhoods are very beautiful and have small hotels and cafés.Beautiful mountains are around the city. Lots of people go sightseeing there every year. But air pollution is a problem in the city center.

HONG KONG, CHINA    This lively city—once a small fishing village—is today an international business center. It is an interesting mix of East and West, old and new. Modern tall buildings are next to small temples (庙宇). Popular nightclubs are close to traditional teahouses. Busy people fill the streets at all hours of the day. But outside the city, there are parks for walking or relaxing. Hong Kong is famous for its wonderful native dishes. There’s also food from Europe, North America, and other parts of Asia. However, this small city has a large population of nearly seven million! That’s why housing is often very expensive. Traffic and air pollution are also a problem.

1.Which of the following is NOT mentioned about San Jose?

A．The weather.

B．The mountains.

C．The air.

D．The traffic.

2.What makes Hong Kong the world’s best according to this passage?

A．The lively city and the wonderful dishes.

B．The large population and the traffic.

C．The expensive housing.

D．The beautiful temples.

3. The writer thinks housing in Hong Kong is expensive because ________.

A．it is a small fishing village	B．it is a mix of East and West
C．it is a beautiful city	D．there are too many people in the city

4.What do the two cities have in common?

A．They both have beautiful mountains.	B．They both have a large population.
C．Air pollution is a problem in both.	D．They are both crowded.

5.From the passage, we can know that       .

A．San Jose and Hong Kong are the only two cities of the world’s best

B．San Jose has more natural sights than Hong Kong does

C．the weather in both cities is fine

D．San Jose used to be small fishing village

 

When Oakland High School in California moved into a new building, the students and teachers noticed a strong smell. Then almost half of the students began to have a headache and a cough. Experts (专家) came to find the cause of the sickness. Finally, they discovered that the air in the building was not safe to breathe. They were surprised to find out that the desks and chairs in the school library caused the trouble. These desks and chairs were made of particleboards(合成板). This kind of board is cheap. It is made of very small pieces of wood held together with a chemical (化学物质). This is just one example of a modern problem that is most common in cities—indoor air pollution(污染).
People have worried about air pollution for many years, and the government has spent lots of money trying to clean up the air of big cities. But now we found that we are still breathing unhealthy air. A study shows: Indoor air pollution is almost two to five time(倍) worse than outside pollution. So remember to open the windows and don’t stay too long in modern buildings with windows closed.
【小题1】Many students and teachers _________ after they moved into the new building.
A were very happy and excited   B. didn’t feel well    C. felt tired because of hard work
【小题2】The experts came to Oakland High School for _________.
A staying with the sick students and teachers  
B. taking away the desks and chairs
C. finding the cause of the illness
【小题3】 Which of the following is Not true according to the passage?
A. The indoor air pollution is common in cities.
B. We needn’t worry about the outside pollution.
C. The air in this school library was not safe to breathe.
【小题4】A study shows that indoor air pollution is _________.
A even worse than the outside pollution   B. not so bad as outside pollution
C. the only problem to worry about
【小题5】 What’s the main idea of the passage?
A Never move into a new building   B. We shouldn’t buy cheap desks and chairs
C. The indoor air pollution is a big and common problem.

Hundreds of years ago, life was harder than it is today. People didn’t have modern machines. There was no medicine, either.
Life today brings new problems. One of the biggest is pollution. Water pollution has made our rivers and lakes dirty. It kills our fish and pollutes our drinking water. Noise pollution makes us talk louder and we become angry more easily. Air pollution is the most serious kind of pollution to all living things in the world.
Cars, planes and factories all pollute our air every day. Sometimes the polluted air is very thick. People cannot see the sky clearly.
Many countries are making rules to fight against pollution. Factories now must clean their water before they throw it away. And they mustn’t let dirty smoke go into the air.
There are many things we can do to fight against pollution. We should put waste things in dustbins and do not throw them on the ground. We should go to work by bike or on foot instead of taking a car or a bus. If there are fewer people driving, there will be less pollution.
Rules are not enough. We should do our best to fight against pollution.
【小题1】Which of the following is NOT true about life in the past?

A．There were no modern machines. B．There was no modern medicine. C．There was much air pollution. D．There were not many people.

【小题2】What should people do to fight against pollution?

A．Always drive a car to work. B．Throw waste things anywhere they like. C．Put waste things in dustbins. D．Always take a bus to go to school.

【小题3】The most serious pollution is              .

A．water pollution B．air pollution C．noise pollution D．light pollution

【小题4】What should factories do to fight against pollution?

A．Let dirty smoke go into the air. B．Throw dirty water away without cleaning it. C．Close the factories. D．Let dirty water go after cleaning it.

【小题5】From the passage, we know that              .

A．a few years ago, there was no pollution at all. B．people today don’t have to talk to each other loudly C．we can drink water from the polluted rivers and lakes. D．Everybody should try his or her best to fight against pollution