Water, which covers about 74 percent of the earth’s surface, is man’s most precious resource. Without it we cannot live. Clean water keeps us alive; polluted water means disease and death. Keeping our water pure is by no means an easy task but it is something that must be done.
Hong Kong once prided herself on being the “Fragrant Harbour”. However, these days, it is not certain if Hong Kong’s harbour could still be called “fragrant”. For, like many other places, Hong Kong has not been spared water pollution. A visit to Tolo and Victoria Harbour, or any of the beaches in Hong Kong is enough to make one aware of the ugly truth that Hong Kong waters are indeed polluted.
The great threat to our water is bacteria pollution. Another great source of water pollution is poisonous chemicals. These substances, which are found in industrial waste and agricultural pesticides, make up unseen dangers that enter biological food chains.
Pollution control is a continuing problem for the government. It is believed that the most effective form of control is legislation(立法). Most importantly, the present laws on pollution should be given more force. On the other hand, no amount of legislation can effectively control pollution unless those concerned are properly educated about the danger posed by pollution.
While a great majority of Hong Kong citizens and residents seem to be greatly concerned about ways to control water pollution, it is discouraging to note that there are, in our midst, some people who remain apathetic(无动于衷)about the problem. In a recent radio programme conducted on what people in the streets thought about the water pollution problem, one apparently unconcerned person said, “What do I care about water pollution? I don’t drink polluted water. As long as the water I drink is not polluted, I’m not bothered. Water pollution is too big a problem and let’s leave it to the government.”
If all residents in Hong Kong will take such an indifferent attitude, all the government’s attempts to control pollution, let alone the anti-pollution legislation, will prove useless. The best form of pollution control each citizen can employ is to be aware of his surroundings. We hope that someday, the problem of water pollution in Hong Kong will cease to alarm us.
1.By the underlined sentences, the writer wants to show that ______.
A. we should not use polluted water
B. it is our responsibility to keep our water clean and safe
C. clean water is vitally important to the survival of human beings
D. water is abundant but very expensive
2.What can you infer from the second paragraph?
A. Hong Kong indeed deserves the name.
B. Hong Kong never deserves such a name.
C. Hong Kong can’t avoid the damage of pollution.
D. Hong Kong has failed to live up to such reputation.
3.The writer quotes the words in the programme to show us that a block to the solution of the problem is _________.
A. people’s lack of education
B. people’s I-don’t-care attitude
C. people’s wait-and-see attitude
D. people’s over-dependence on the government
4.In the final analysis, the best approach to the problem of water pollution is ________.
A. legislation
B. rapid development of modern science
C. mass education
D.everybody taking care of his own surroundings
高三英语阅读理解困难题
Water, which covers about 74 percent of the earth’s surface, is man’s most precious resource. Without it we cannot live. Clean water keeps us alive; polluted water means disease and death. Keeping our water pure is by no means an easy task but it is something that must be done.
Hong Kong once prided herself on being the “Fragrant Harbour”. However, these days, it is not certain if Hong Kong’s harbour could still be called “fragrant”. For, like many other places, Hong Kong has not been spared water pollution. A visit to Tolo and Victoria Harbour, or any of the beaches in Hong Kong is enough to make one aware of the ugly truth that Hong Kong waters are indeed polluted.
The great threat to our water is bacteria pollution. Another great source of water pollution is poisonous chemicals. These substances, which are found in industrial waste and agricultural pesticides, make up unseen dangers that enter biological food chains.
Pollution control is a continuing problem for the government. It is believed that the most effective form of control is legislation(立法). Most importantly, the present laws on pollution should be given more force. On the other hand, no amount of legislation can effectively control pollution unless those concerned are properly educated about the danger posed by pollution.
While a great majority of Hong Kong citizens and residents seem to be greatly concerned about ways to control water pollution, it is discouraging to note that there are, in our midst, some people who remain apathetic(无动于衷)about the problem. In a recent radio programme conducted on what people in the streets thought about the water pollution problem, one apparently unconcerned person said, “What do I care about water pollution? I don’t drink polluted water. As long as the water I drink is not polluted, I’m not bothered. Water pollution is too big a problem and let’s leave it to the government.”
If all residents in Hong Kong will take such an indifferent attitude, all the government’s attempts to control pollution, let alone the anti-pollution legislation, will prove useless. The best form of pollution control each citizen can employ is to be aware of his surroundings. We hope that someday, the problem of water pollution in Hong Kong will cease to alarm us.
1.By the underlined sentences, the writer wants to show that ______.
A. we should not use polluted water
B. it is our responsibility to keep our water clean and safe
C. clean water is vitally important to the survival of human beings
D. water is abundant but very expensive
2.What can you infer from the second paragraph?
A. Hong Kong indeed deserves the name.
B. Hong Kong never deserves such a name.
C. Hong Kong can’t avoid the damage of pollution.
D. Hong Kong has failed to live up to such reputation.
3.The writer quotes the words in the programme to show us that a block to the solution of the problem is _________.
A. people’s lack of education
B. people’s I-don’t-care attitude
C. people’s wait-and-see attitude
D. people’s over-dependence on the government
4.In the final analysis, the best approach to the problem of water pollution is ________.
A. legislation
B. rapid development of modern science
C. mass education
D.everybody taking care of his own surroundings
高三英语阅读理解困难题查看答案及解析
From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
A. why B. how C. because D. whether
高三英语单项填空中等难度题查看答案及解析
From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water.
A. why B. how C. because D. whether
高三英语单项填空中等难度题查看答案及解析
From space, the earth looks blue. This is ________ about seventy-one percent of its surface is covered by water.
A.why B.how
C.because D.whether
高三英语单项填空中等难度题查看答案及解析
From space, the earth looks blue. This is ________about seventy-one percent of its surface is covered by water.
A.why B.how C.because D.whether
高三英语单项填空中等难度题查看答案及解析
The ocean covers over 70 percent of the surface of Earth today, but over 3 billion years ago the entire planet may have been covered in water. To investigate what our planet was like billions of years ago, a team of researchers turned to indirect methods of analysis at a geological site in the Australian Outback known as Panorama(全景画) in the Pilbara Craton. Today, the region is 100 kilometers inland, but 3.2 billion years ago, it was deep underwater.
In fact, there were also once ancient hydrothermal vents (热水口) there where seawater bubbled up through the ocean floor. “There are no samples of really ancient ocean water lying around, but we do have rocks that interacted with that seawater and remembered that interaction,” lead author Benjamin Johnson, an assistant professor at Iowa State University, said in a statement.
The researchers collected over 100 of these rock samples and found something peculiar in them: a slightly higher amount of a particular isotope (同位素) of oxygen. The vast majority of oxygen on Earth is Oxygen-16 and contains eight protons (质子) and eight neutrons. However, about 0.20 percent is Oxygen-18.
Samples from Australia show the region’s ancient water contained more Oxygen-18 than present times. Since continents are covered in clay-rich soil that is efficient at trapping Oxygen-18, the team suggests that without continents covered in soil, more Oxygen-18 would have been present in the ocean. Their discovery indeed suggests there wasn’t much dry land available 3.24 billion years ago.
“There’s nothing in what we’ve done that says you can’t have tiny, micro -continents sticking out of the oceans,” added co-author Boswell Wing. “We just don’t think there were global-scale formations of continental soils like we have today.” The researchers don’t know when and how continents began to emerge out of the ocean but they plan to investigate “younger” rock formations to piece together a more precise timeline.
1.Where is the research site?
A.In a region deep underwater.
B.In a region off Australia.
C.In a region inland Australia.
D.In a region outside the Pilbara Craton.
2.What do the underlined words “interact with” in Paragraph 2 mean?
A.Have an effect on each other. B.Have a one-way effect.
C.Have a mysterious effect. D.Have a negative effect.
3.What’s the researchers’ conclusion after analyzing samples from Australia?
A.Modern earth must have been a water world.
B.Modern earth must have been a continental world.
C.Ancient earth may have been a water world.
D.Ancient earth may have been a continental world.
4.What’s the researchers’ next focus of the study?
A.To research continental soils’ formations.
B.To research the ocean’s formations.
C.To research “older” rock formations.
D.To research “younger” rock formations.
高三英语阅读理解中等难度题查看答案及解析
from the moon, our earth with water seventy percent of its surface, appears a blue ball.
A. Seen; covered B. Seen; covering
C. To see; covering D. Seeing; covered
高三英语单项填空中等难度题查看答案及解析
_______ the fact that three quarters of the earth’s surface is covered with water, we can say that it is a ________ planet.
A.Given; water-covering | B.having been given; water-covered |
C.Considering; water-covered | D.To consider; water-to-cover |
高三英语单项填空中等难度题查看答案及解析
____ from the moon, our earth with water ____ seventy percent of its surface, appears as a blue ball.
A. Seen; covered B. Seeing; covering C. Seen; covering D. Seeing; covered
高三英语单项填空简单题查看答案及解析
(2013·安徽,21)From space, the earth looks blue.This is ________about seventyone percent of its surface is covered by water.
A.why B.how C.because D.whether
高三英语单项填空中等难度题查看答案及解析