Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.
The oceans are so vast and deep that until fairly recently, it was widely assumed that no matter how much trash and chemicals humans dumped into them, the effects would be negligible. Proponents of dumping in the oceans even had a catchphrase: "The solution to pollution is dilution."
Today, we need look no further than the New Jersey-size dead zone that forms each summer in the Mississippi River Delta, or the thousand-mile-wide swath of decomposing plastic in the northern Pacific Ocean to see that this "dilution" policy has helped place a once flourishing ocean ecosystem on the brink of collapse.
There is evidence that the oceans have suffered at the hands of mankind for millennia. But recent studies show that degradation, particularly of shoreline areas, has accelerated dramatically in the past three centuries as industrial discharge and run-off from farms and coastal cities have increased.
Pollution is the introduction of harmful contaminants that are outside the norm for a given ecosystem. Common man-made pollutants reaching the oceans include pesticides, herbicides, chemical fertilizers, detergents, oil, sewage, plastics, and other solids. Many of these pollutants collect at the ocean's depths, where they are consumed by small marine organisms and introduced into the global food chain.
Many ocean pollutants are released into the environment far upstream from coastlines. Nitrogen-rich fertilizers applied by farmers inland, for example, end up in local streams, rivers, and groundwater and are eventually deposited in estuaries, bays, and deltas. These excess nutrients can spawn massive blooms of algae that rob the water of oxygen, leaving areas where little or no marine life can exist.
Solid wastes like bags, foam, and other items dumped into the oceans from land or by ships at sea are frequently consumed, with often fatal effects, by marine mammals, fish, and birds that mistake them for food. Discarded fishing nets drift for many years, ensnaring fish and mammals. In certain regions, ocean currents corral trillions of decomposing plastic items and other trash into gigantic, swirling garbage patches. One in the North Pacific, known as the Pacific Trash Vortex, is estimated to be the size of Texas.
Pollution is not always physical. In large bodies of water, sound waves can carry undiminished for miles. The increased presence of loud or persistent sounds from ships, sonar devices, oil rigs, and even from natural sources like earthquakes can disrupt the migration, communication, and reproduction patterns of many marine animals, particularly aquatic mammals like whales and dolphins.
(Source: http://www.oceannationalgeographic.com)
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A.
The oceans in the past were more contaminated than they are now.
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B.
Industrial wastes and agricultural run-off are blamed for the degradation of the oceans.
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C.
It is apparent that the oceans have been polluted for a long time.
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D.
Many pollutants deposited in the oceans finally become part of the global food chain.
Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.
The oceans are so vast and deep that until fairly recently, it was widely assumed that no matter how much trash and chemicals humans dumped into them, the effects would be negligible. Proponents of dumping in the oceans even had a catchphrase: "The solution to pollution is dilution."
Today, we need look no further than the New Jersey-size dead zone that forms each summer in the Mississippi River Delta, or the thousand-mile-wide swath of decomposing plastic in the northern Pacific Ocean to see that this "dilution" policy has helped place a once flourishing ocean ecosystem on the brink of collapse.
There is evidence that the oceans have suffered at the hands of mankind for millennia. But recent studies show that degradation, particularly of shoreline areas, has accelerated dramatically in the past three centuries as industrial discharge and run-off from farms and coastal cities have increased.
Pollution is the introduction of harmful contaminants that are outside the norm for a given ecosystem. Common man-made pollutants reaching the oceans include pesticides, herbicides, chemical fertilizers, detergents, oil, sewage, plastics, and other solids. Many of these pollutants collect at the ocean's depths, where they are consumed by small marine organisms and introduced into the global food chain.
Many ocean pollutants are released into the environment far upstream from coastlines. Nitrogen-rich fertilizers applied by farmers inland, for example, end up in local streams, rivers, and groundwater and are eventually deposited in estuaries, bays, and deltas. These excess nutrients can spawn massive blooms of algae that rob the water of oxygen, leaving areas where little or no marine life can exist.
Solid wastes like bags, foam, and other items dumped into the oceans from land or by ships at sea are frequently consumed, with often fatal effects, by marine mammals, fish, and birds that mistake them for food. Discarded fishing nets drift for many years, ensnaring fish and mammals. In certain regions, ocean currents corral trillions of decomposing plastic items and other trash into gigantic, swirling garbage patches. One in the North Pacific, known as the Pacific Trash Vortex, is estimated to be the size of Texas.
Pollution is not always physical. In large bodies of water, sound waves can carry undiminished for miles. The increased presence of loud or persistent sounds from ships, sonar devices, oil rigs, and even from natural sources like earthquakes can disrupt the migration, communication, and reproduction patterns of many marine animals, particularly aquatic mammals like whales and dolphins.
(Source: http://www.oceannationalgeographic.com)
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A.
are forced to migrate because of water pollution
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B.
suffer from loud or persistent sounds at sea
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C.
can survive earthquakes because of their large bodies
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D.
can communicate with each other via sound waves
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
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A.
All
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B.
paid
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C.
their
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D.
in
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
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A.
at night
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B.
in
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C.
not walking
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D.
The policeman
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
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A.
family
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B.
everyone
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C.
to prepare
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D.
get
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
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A.
He has been in London for three years.
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B.
He hasn't visited London for three years.
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C.
He didn't visit London three years ago.
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D.
He was in London for three years.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
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A.
If it didn't snow heavily, they wouldn't be late for the meeting.
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B.
But for the heavy snow, they wouldn't have been late for the meeting.
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C.
Had it not snowed heavily, they would have been late for the meeting.
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D.
If it snowed heavily, they would be late for the meeting.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.
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A.
The customers decided to leave because they did not see the manager.
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B.
The customers agreed to leave before they saw the manager.
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C.
The customers refused to leave until they saw the manager.
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D.
The customers promised to leave before they saw the manager.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
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A.
Whether the government have established some wildlife reserves or not, endangered species are still protected.
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B.
Endangered species can't be protected although the government have established some wildlife reserves.
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C.
The government have established some wildlife reserves so that endangered species can be protected.
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D.
If the government established some wildlife reserves, they would be able to protect endangered species.
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions.
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A.
My sister is good at cooking, so my brother is bad at it.
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B.
My sister is good at cooking, but my brother is bad at it.
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C.
My sister is good at cooking, for my brother is bad at it.
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D.
My sister is good at cooking, or my brother is bad at it.
Đề thi THPT Quốc gia năm 2017 - Môn Tiếng Anh
Mã đề thi 402
| Chuyên đề | Số câu hỏi / đề thi | Tổng số câu |
|---|---|---|
| Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. | 50 | 10 |