Air pollution

Pollution is the process of making something dirty. Sometimes, the air becomes dirty from (22)_____ causes. If a volcano erupts, it will fill the air with gases, pieces of ash and smoke. People often air to become (23) _____When garbage becomes old, a gas called methane fills the air. Cars fill the air with (24)_____.A lot of factories emit poisons into the air. Weapons of war add (25) _____gases into the air. To decrease air pollution, air quality standards, like the Clean Air Act, were enacted in 1963 and then some pollutants have been reduced.

21, A, natural D. natured B. nature C. naturally

22. A, take B. cause C. do D. put C. polluted

23. A to pollute B. pollution D. polluting

24. A fumes B. fumed C. fuming D. fumy

25. A. harmful B. deadly C. risky D. toxic

Choose the letter A, B, C or D to complete the passage below

Air pollution is one of _________ (6) problems of the current time all over the world. There ___________ (7) a lot of reasons for this pollution. First of all, the release of air pollutants such as smog and solid materials cause air pollution and health issues ___________ (8) human. ___________ (9) dirty wastes in big cities are polluting the whole atmospheric air. Thirdly, motor vehicles are releasing polluted gases contributing to the air pollution. Finally, some natural ________ (10) like dust, soil particles, and natural gases are also the source of air pollution.

Question 8:

A. in

B. of

C. to

D. with

Choose the letter A, B, C or D to complete the passage below

Air pollution is one of _________ (6) problems of the current time all over the world. There ___________ (7) a lot of reasons for this pollution. First of all, the release of air pollutants such as smog and solid materials cause air pollution and health issues ___________ (8) human. ___________ (9) dirty wastes in big cities are polluting the whole atmospheric air. Thirdly, motor vehicles are releasing polluted gases contributing to the air pollution. Finally, some natural ________ (10) like dust, soil particles, and natural gases are also the source of air pollution.

Question 10:

A. pollutes

B. pollutions

C. pollutants

D. polluting

Choose the letter A, B, C or D to complete the passage below

Air pollution is one of _________ (6) problems of the current time all over the world. There ___________ (7) a lot of reasons for this pollution. First of all, the release of air pollutants such as smog and solid materials cause air pollution and health issues ___________ (8) human. ___________ (9) dirty wastes in big cities are polluting the whole atmospheric air. Thirdly, motor vehicles are releasing polluted gases contributing to the air pollution. Finally, some natural ________ (10) like dust, soil particles, and natural gases are also the source of air pollution.

Question 7:

A. are

B. is

C. being

D. be

Choose the letter A, B, C or D to complete the passage below

Air pollution is one of _________ (6) problems of the current time all over the world. There ___________ (7) a lot of reasons for this pollution. First of all, the release of air pollutants such as smog and solid materials cause air pollution and health issues ___________ (8) human. ___________ (9) dirty wastes in big cities are polluting the whole atmospheric air. Thirdly, motor vehicles are releasing polluted gases contributing to the air pollution. Finally, some natural ________ (10) like dust, soil particles, and natural gases are also the source of air pollution.

Question 9:

A. Thirdly

B. Secondly

C. Fourthly

D. fifthly

Choose the letter A, B, C or D to complete the passage below

Air pollution is one of _________ (6) problems of the current time all over the world. There ___________ (7) a lot of reasons for this pollution. First of all, the release of air pollutants such as smog and solid materials cause air pollution and health issues ___________ (8) human. ___________ (9) dirty wastes in big cities are polluting the whole atmospheric air. Thirdly, motor vehicles are releasing polluted gases contributing to the air pollution. Finally, some natural ________ (10) like dust, soil particles, and natural gases are also the source of air pollution.

Question 6:

A. serious

B. more serious

C. the most serious

D. serious than

Every day on radio, on TV, and in the newspapers, we hear, see, or read about many problems in the world, for example, pollution problems. Air pollution is the first kind. It mostly comes from fumes released from motorbikes, cars, airplanes, trains, and poisonous gases emitted from factories. Also, waste is dumped anywhere, even in the city where many people are living. The second pollution problem is sea pollution. Many people earn their living from fishing in the sea, and the fish they catch feed many people. But the sea has become so polluted from oil spills and factory wastes that the fish are dying. This pollution is not only killing the fish, but also affecting those people who eat fish. Seldom do you find a place nowadays that is not polluted. This problem is growing more difficult every day. We must find a good solution that makes the world a better place to live. T or F 1. pollution is becoming a serious problem nowadays. 2. vehicles and industries are among the causes of air pollution. 3. sea pollution does not affect us at all. 4. only major cities are affected by pollution

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks.

Air  pollution  occurs  when  wastes  dirty  the  air.  People  produce  most  of  the  (44)  ______  that  cause  air pollution.  Such  wastes  can  be  in  the  form  of  gases  or  particles  of  solid  or  liquid  matter.  These  substances result chiefly from burning (45) _______ to power motor vehicles and to heat buildings. Industrial processes and the (46) _______ of garbage also contribute to air pollution. Natural pollutants (impurities) include dust, pollen, soil particles, and naturally occurring gases.

     The  rapid  growth  of  population  and  industry  and  the  increasing  use  of  automobiles  and  airplanes  have made air pollution a (47) _______ problem. The air we breathe has become so filled with pollutants that it can cause (48) _______ problems. Polluted air also harms plants, animals, building materials, and fabrics. In addition, it causes damage by altering the earth’s atmosphere.

Điền ô số 45

A. garbage

B. coal

C. plastics

D. fuel

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the blanks.

Air  pollution  occurs  when  wastes  dirty  the  air.  People  produce  most  of  the  (44)  ______  that  cause  air pollution.  Such  wastes  can  be  in  the  form  of  gases  or  particles  of  solid  or  liquid  matter.  These  substances result chiefly from burning (45) _______ to power motor vehicles and to heat buildings. Industrial processes and the (46) _______ of garbage also contribute to air pollution. Natural pollutants (impurities) include dust, pollen, soil particles, and naturally occurring gases.

     The  rapid  growth  of  population  and  industry  and  the  increasing  use  of  automobiles  and  airplanes  have made air pollution a (47) _______ problem. The air we breathe has become so filled with pollutants that it can cause (48) _______ problems. Polluted air also harms plants, animals, building materials, and fabrics. In addition, it causes damage by altering the earth’s atmosphere.

Điền ô số 48

A. pollution

B. health

C. preserving

D. dirty