Read the text and then choose the best answer A, B, C or D.

Tsunamis, whose name derives from the Japanese expression for "high wave in a harbor", are giant sea wave. These waves are quite different from storm surges. They are also referred to by the general public as tidal waves although they have nothing to do with tides. Scientists often refer to them as seismic sea waves, which is far more appropriate because they are often the result of undersea seismic activity.

Tsunamis can be caused when the sea floor suddenly moves, during an underwater earthquake or volcano, and the water above the moving earth is suddenly displaced. This sudden shift of water sets off a series of waves. These waves can travel great distances, at speeds close to 700 kilometres per hour. In the open ocean, tsunami waves are not very high, often no more than one or two metres. It is when they hit the shallow waters near the coast thay they increase in height, possibly up to 40 metres.

1. The passage mainly discusses __________

A. tidal waves B. tides C. tsunamis D. storm surges

2. All of the following is true about tidal waves EXCEPT __________

A. They are as another name for tsunamis

B. They are caused by sudden changes in high and low tides

C. this term is not used by the scientists

D. the name refer to the same phenomenon as seismic sea waves

3. The word "them" in the passage refers to __________

A. tidal waves B. tsunamis C. storm surges D. sea waves

4. The word "shallow" in the passage mostly means __________

A. not clear B. tidal C. coastal D. not deep

5. It can be understood from the passage that tsunamis __________

A. cause severe damage in the middle of the ocean

B. generally reach heights greater than 40 metres

C. are far more dangerous on the coast than in the open ocean

D. are often identified by ships on the ocean

Read the following passage and answer the questions.

Every day on radio, on TV, and in the newspaper, 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 posonous 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 is 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.

1. How often can we hear, see and read about problems in the world?

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2. What causes the air pollution?

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3. Why has the sea become polluted?

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4. Can we easily find a clean place nowadays?

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5. What should we do to make the world a better place to live?

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Choose the correct answer.

1. The fovernment sent rescue food, drink and medical supplies to __________ homes.

A. flood B. flooded C. flooding D. floods

2. The roof __________ under the weight of snow last night.

A. collapsed B. collapsing C. collapses D. collapse

3. Many people become __________ because of the natural disasters every year.

A. homeless B. homesick C. homeland D. homework

4. The __________ buried the whole village while people were sleeping in their houses.

A. mudslide B. tornado C. drought D. thunderstorm

5. The sight of too many advertising billboards, shop signs causes __________ pollution.

A. air B. light C. noise D. visual