dẫn chứng và giải thích+50xu
 
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Que
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Ques
Questi
Questio
C. effectiveness
C. when
D. effect
30. A. where
B. which
D. that
V.Read the following passage and mark the letter A, B, C, or D on your answer sheet to indic
correct answer to each of the questions.
One of the most urgent environmental problems in the world today is the shortage of clean water Having
clean drinking water is a basic human right. However, acid rain, industrial pollution and garbage have made
many sources of water undrinkable, Lakes, reservoirs and even entire seas have become vast pools of poison.
Lake Baikal in Russia is one of the largest lakes in the world. It contains a rich variety of animals and plants,
including 1, 300 rare species that do not exist anywhere else in the world. Yet, they are being destroyed by
the massive volumes of industrial effluent which pour into the lake every day. Even though laws have been
made, the government do not have the power to enforce them. Most industries simply ignore the regulations.
The Mediterranean Sea occupies 1% of the world's water surface, but it is the dumping ground for 50% of all
marine pollution. Almost 16 countries regularly throw industrial wastes a few miles off shore.
Water is free to everyone. A few years ago people thought that the supply of clean water in the world was
limitless. Today, many water supplies have been ruined by pollution and sewage. Clean water is now scarce,
and we are at last beginning to respect this precious source. We should do something now.
29. According to the writer, one environmental problem in the world today is
A. safe water shortage
C. industrial pollution
B. pools of poison
D. population explosion
30. What is the serious problem of Lake Baikal in Russia?
A. It has 1, 300 rare species that do not exist anywhere else in the world.
B. It is one of the largest lakes that contains a variety of animals and plants.
C. It is polluted by massive volumes of industrial wastes discharged into it.
D. It is the only lake in Russia whose source of water is not drinkable.
31. What does the word "them" in the passage refer to?
A. laws
B. the government C. animals D. plants
32. What is the message to the readers?
A. We should take action to protect our water sources.
B. We should take all water sources into account.
C. We should limit the use of water sources.
D. We should encourage people to use safe water.
YI. Rewrite the sentence so that it means as the first one, beginning with the given words.(1.0pt)
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