Life on earth depends on water, and there is no substitute for it. The current assumption is that our basic needs for water—whether for drinking, agriculture, industry or the raising of fish—will always have to be met. Given this premise (前提), there are two basic routes we can go; more equal access to water or better engineering solutions.
Look at the engineering solutions first. A lot of my research concentrates on what happens to wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almost entirely driven by the seasonal changes of the river—the pulse of the water. And the fact is that if you build a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by a lack of information. But in the near future, governments will have no excuses for their ignorance.
The engineers’ ability to control water flows has created new kinds of unpredictability, too. Dams in Africa have meant fewer fish, less grazing and less floodplain (洪泛区) agriculture, none of which were expected. And there average economic life is assumed to be thirty years. Dams don’t exist forever, but what will replace them is not clear.
The challenge for the future is to find new means of controlling water. Although GM technology(转基因) will allow us to breed better dry-land crops, there is no market for companies to develop crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay for research on locally appropriate crops in the Third World?
1.What’s the main idea of this passage?
A.The engineering solutions to water resource and their limitation.
B.The challenge for the future.
C.The basic means of controlling water.
D.The challenge for developing crops.
2.The author suggests that governments will have no excuse for their careless ignorance in the future because _____.
A.The ecological destruction will be known to the public by researchers
B.The ecological destruction will no longer be a problem in the future
C.The future is an information age
D.Governments will face greater challenge in the future
3.Which of the following statements is NOT true for meeting our basic needs for water?
A.Water resource should be used more reasonably.
B.More dams should be built in river basins.
C.More wetlands should be protected from destruction.
D.More dry-land crops could be developed in Africa.
4.The last sentence probably implies that _____.
A.No one will invest in developing locally appropriate crops in Africa
B.Researchers have no interest in developing dry-land crops
C.Research on locally appropriate crops in the Third World may be profitable
D.There is less water resource in the Third World
高二英语阅读理解中等难度题
Life on earth depends on water, and there is no substitute for it. The current assumption is that our basic needs for water—whether for drinking, agriculture, industry or the raising of fish—will always have to be met. Given this premise (前提), there are two basic routes we can go; more equal access to water or better engineering solutions.
Look at the engineering solutions first. A lot of my research concentrates on what happens to wetlands when you build dams in river basins, particularly in Africa. The ecology of such areas is almost entirely driven by the seasonal changes of the river—the pulse of the water. And the fact is that if you build a dam, you generally spoil the downstream ecology. In the past, such problems have been hidden by a lack of information. But in the near future, governments will have no excuses for their ignorance.
The engineers’ ability to control water flows has created new kinds of unpredictability, too. Dams in Africa have meant fewer fish, less grazing and less floodplain (洪泛区) agriculture, none of which were expected. And there average economic life is assumed to be thirty years. Dams don’t exist forever, but what will replace them is not clear.
The challenge for the future is to find new means of controlling water. Although GM technology(转基因) will allow us to breed better dry-land crops, there is no market for companies to develop crops suitable for the micro-climates of the Sahel and elsewhere in Africa. Who is going to pay for research on locally appropriate crops in the Third World?
1.What’s the main idea of this passage?
A.The engineering solutions to water resource and their limitation.
B.The challenge for the future.
C.The basic means of controlling water.
D.The challenge for developing crops.
2.The author suggests that governments will have no excuse for their careless ignorance in the future because _____.
A.The ecological destruction will be known to the public by researchers
B.The ecological destruction will no longer be a problem in the future
C.The future is an information age
D.Governments will face greater challenge in the future
3.Which of the following statements is NOT true for meeting our basic needs for water?
A.Water resource should be used more reasonably.
B.More dams should be built in river basins.
C.More wetlands should be protected from destruction.
D.More dry-land crops could be developed in Africa.
4.The last sentence probably implies that _____.
A.No one will invest in developing locally appropriate crops in Africa
B.Researchers have no interest in developing dry-land crops
C.Research on locally appropriate crops in the Third World may be profitable
D.There is less water resource in the Third World
高二英语阅读理解中等难度题查看答案及解析
Beneath our feet ______ that our life depends on for food and clothing.
A. the earth lay B. the earth lies C. lie the earth D. lies the earth
高二英语单项填空简单题查看答案及解析
Is There Life on Earth?
There was great excitement on the planet of Venus(金星) this week. For the first time Venusian scientists managed to land a satellite on the planet Earth, and it has been sending back signals as well as photographs ever since.
The satellite was directed into an area known as Manhattan (named after the great Venusian astronomer Prof. Manhattan, who first discovered it with his telescope 20,000 light years ago).
Because of excellent weather conditions and extremely strong signals, Venusian
scientists were able to get valuable information as to feasibility (可行性) of a manned flying saucer (碟) landing on Earth. A press conference was held at the Venus Institute of Technology.
“We have come to the conclusion, based on last week’s satellite landing,” Prof. Zog said, “that there is no life on Earth.”
“How do you know this?” the science reporter of the Venus Evening Star asked.
“For one thing, Earth’s surface in the area of Manhattan is made up of solid concrete and nothing can grow there. For another, the atmosphere is filled with carbon monoxide (一氧化碳) and other deadly gases and nobody could possibly breathe the air and survive.”
“What does this mean as far as our flying saucer program is concerned?”
“We shall have to take our own oxygen with us, which means a much heavier flying saucer than originally planned.”
“Are there any other dangers that you discovered in your studies?”
“Take a look at this photo. You see this dark black cloud hovering(盘旋) over the surface of Earth? We call this the Consolidated Edison Belt. We don’t know what it is made of, but it could give us a lot of trouble and we shall have to make further tests before we send a Venus Being there.”
“Over here you will notice what seems to be a river, but the satellite findings indicate it is polluted and the water is unfit to drink. This means we shall have to carry our own water, which will add even greater weight to the saucer.”
“Sir, what are all those tiny black spots on the photographs?”
“We are not certain. They seem to be metal particles(粒子) that move along certain paths. They emit gases, make noise and keep crashing into each other. There are so many of these paths and so many metal particles that it is impossible to land a flying saucer without its being smashed by one”.
“What are those stalagmite(石笋) projections sticking up?”
“They are some of granite formations that give off light at night. Prof. Glom has named them skyscrapers since they seem to be scraping the skies. ”
“If all you say is true, won’t this set back the flying saucer program several years?”
“Yes, but we shall continue as soon as the Grubstart gives us the added funds.”
Prof. Zog, why are we spending billions and billions of zilches to land a flying saucer on Earth when there is no life there?
“Because if we Venusians can learn to breathe in an Earth atmosphere, then we can live anywhere.”
1.According to Prof. Zog, the Venusians will have to take their own oxygen with them when they carry out their flying saucer program because ________.
A. they need it on their way to the planet of earth
B. the earth’s atmosphere is filled with deadly gases
C. oxygen is far from enough in the area of Manhattan
D. there is no air on the planet of Earth
2.The “dark black cloud” in the 10th paragraph indicates ________.
A. the polluted air hovering over the surface of Earth
B. the mass of tiny drops of water floating above Earth
C. the mass of small things moving through the air
D. the dark clouds gathering before a storm breaks
3.The author wishes to call our attention to the fact that ________.
A. modern man has polluted his environment to such an extent that he may destroy himself if he carries on like this
B. there is no point in spending billions and billions of zilches to land a flying saucer on Earth
C. pollution has become so serious a problem on Earth that even Venusians find life there unbearable
D. it is difficult, if not altogether impossible, to land a manned flying saucer on Earth
4.The tone of this essay is ________.
A. hopeless and objective
B. serious and critical (批评的)
C. humorous and satirical (讽刺的)
D. sensitive and subjective
高二英语阅读理解中等难度题查看答案及解析
Whether life will continue on the earth for millions of years ______will depend on ____this problem can be solved.
A. to come; if B. coming; if C. to come; whether D. coming; whether
高二英语单项填空简单题查看答案及解析
Whether life will continue on the earth will depend on _______ this problem can be solved.
A. that B. which C. whether D. If
高二英语单项填空中等难度题查看答案及解析
Water is the “life blood” of our earth. It is in every living thing. It is in the air. It runs through mountains and valleys. It forms lakes and oceans. Water is everywhere.
Nature has a great water system. Rain water finds its way to streams and the oceans.
Here at the mouth of a river there is much important plant and animal life. Pollution destroys this life, so we have to clean out streams and rivers. Man has to work with nature—not against it.
1.According to the passage, water is the ________ of our earth.
A. blood B. clouds C. rain D. life
2.The mouth of the river is near ________.
A. a stream B. the ocean C. the mountains D. valleys
3.There is much plant and animal life at the ________.
A. head of a river B. bottom of a sea
C. body of a stream D. mouth of a river
4.The water in streams and rivers all comes from ________.
A. rain B. nature C. valleys D. oceans
5.Which of the following is NOT true?
A. We can find water in our body.
B. Blood can be found in every living thing.
C. We can work against nature.
D. At the mouth of a river we can find many living things.
高二英语阅读理解中等难度题查看答案及解析
Earth is a rocky planet_____ liquid water, which is necessary for life, can exist.
A. as B. which C. where D. when
高二英语单项填空简单题查看答案及解析
Earth is a rocky planet _______ liquid water, which is necessary for life, can exist.
A. as B. which C. where D. when
高二英语单项填空简单题查看答案及解析
.
There is no electricity or water and even no textbooks____.
A.too | B.either | C.but | D.so |
高二英语单项填空简单题查看答案及解析
There is no substitute for taking an English course in a high quality language school in an English – speaking country. els – lounge Student has partnered with some of best language schools in the UK. Choose a school from below. We can offer discounts on English courses.
University of Liverpool, English Language Center
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Burlington School, London
Burlington School is located in Parsons Green, 15 minutes by underground from the center of London. Our standard of teaching is high, with courses in General and Specialist English. The coffee bar is open all day serving freshly – cooked meals, and the school organizes a range of social activities. Students either live in homestays or in one of our hostels.
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New School of English, Cambridge
The New School of English is located in the beautiful city of Cambridge. The school is open all year and provides a range of English language courses for adults from all over the world (minimum age 16). These courses cover General English as well as courses for professionals looking to focus on specific topic areas. They have a range of accommodation choices for students.
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1.Which school offers the biggest discounts?
A. Burlington School. B. University of Liverpool.
C. New School of English. D. Interactive English School.
2.How is New School of English different from the others?
A. Its accommodation is optional.
B. It offers General and Specialist English courses.
C. It sets a strict age limit.
D. Its teachers are qualified and experienced.
3.Who would be interested in the schools?
A. English professors. B. Foreign English learners.
C. Native English speakers. D. Staff of els – lounge Student.
高二英语阅读理解中等难度题查看答案及解析