题目内容
A scientist who developed a way to calculate how much water is used in the production of anything from a cup of coffee to a hamburger was awarded the 2008 Stockholm Water Prize.
Professor John Anthony Allan of the University of London in Britain won the award for introducing the idea of “virtual water (虚拟水)”, a calculation method that has changed the nature of trade policy and research.
Allan has written seven books and published more than 100 papers.
The Stockholm International Water Institute said this idea is now embedded (埋藏) in the production of foods and industrial products. The institute said Allan’s work had made a big effect on global trade policy and research, especially in water-scarce (缺水的) regions.
“The improved understanding of trade and water management issu
es on local, regional and global scales are of the highest value for the successful and sustainable (可持续的) use of water resources,” it said.
“People do not only use water when they drink it or take a shower,” the institute said. “Behind the morning cup of coffee, there are 140 liters of water that was used to grow, produce, package and ship the beans.” That is about as much water as a person in England uses on average for all daily drinking and household needs.
“For a single hamburger, about 2,400 liters of water are needed. In the USA, the average person uses nearly 7,000 liters of virtual water every day.” It said that was more than three times the average use of a Chinese person.
49．Allan was awarded the prize because _______.
A. he wrote seven books on trade policy
B. he published more than 100 papers on water management
C. he found a new kind of water in water-scarce areas
D. he came up with the idea of virtual water
50．Which of the following is TRUE according to the passage?
A. The average American uses about 7,000 liters of water a day.
B. The average Chinese uses nearly 2,300 liters of virtual water a day.
C. An Englishman usually drinks about 140 liters of coffee a day.
D. A hamburger usually contains about 2,400 liters of water.
51．What do we learn about John Anthony Allan from the passage?
A. He won the 2008 Nobel Prize. B. He has written over 100 books.
C. He works at the University of London. D. He lives in the USA.
52．What effect does the idea of virtual water have?
A. It helps us realize the importance of trade.
B. It helps
people do successful business.
C. It helps us make use of water scientifically.
D. It tells us how much water we use a day.
DBCC
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NANJING, June 13,2009 (Xinhua) – China will see the longest total solar eclipse (日食) in 500 years on July 22, a scientist said Saturday.
The most important time of the total eclipse was expected to
begin from 9:00 a.m. to 9:38 a. m. (Beijing Time), said Wang
Sichao, a research fellow with the Nanjing – based Purple
Mountain Observatory under the Chinese Academy of Sciences.
“The total eclipse will l ast up to six minutes, which is the longest
one that can be seen in China in almost 500 years from 1814 to 2309,” Wang said.
He said viewers in parts of eleven provinces in China's southwestern, central-southern and eastern areas, such as Tibet, Hunan and Jiangsu, will be able to witness the total solar eclipse, while in most parts of Shanghai, viewers can see the spectacular phenomenon. For viewers in other provinces, including Beijing, they can observe a partial eclipse, he said.
A solar eclipse occurs when the moon is caught between the sun and the earth while each of them moves along their fixed orbits. In a total solar eclipse, the sun, the moon and the earth are directly aligned as the sun swings into the cone of shadow cast by the moon.
Wang said the next total solar eclipse that can be seen in China will fall on March 20 th, 2034. "But it can only be seen remote provinces, such as Tibet and Qinghai. It cannot not be compared with the upcoming one -- in terms of duration and number of cities that can see the eclipse," he added. The last total solar eclipse visible in China took place on Aug. 1 last year. It was observed in northwest China and lasted two minutes in Yiwu County of northwestern Xinjiang Uygur Autonomous Region, the best place to see the phenomenon.
72．According to the report, the total eclipse on July the 22 nd will last .
A．over a month B．about 38 minutes
C．about 6 minutes D．less than 30 minutes
73．Viewers can possibly witness the total solar eclipse in .
A．Liaoning B．Sichuan C．Beijing D．Xinjiang
74．When a total solar eclipse happens, .
A．the moon goes into the shadow cast by the sun
B．the earth stays between the sun and the moon
C．the sun temporarily moves into the moon’s orbit
D．the sun is in a line with the moon and the earth
75．Which is the best title for this report? .
A．China to witness longest total solar eclipse in 500 years
B．The most important total solar eclipse will favor China
C．The beginning time of the total solar eclipse is expected
D．China has been the best place to witness the solar eclipse
Looking back on my childhood, I am convinced that naturalists are born and not made. Although we were all brought up in the same way, my brothers and sisters soon left their pressed flowers and insects. Unlike them, I had no ear for music and languages. I was not an early reader and I could not do mental arithmetic.
Before World War I we spent our summer holidays in Hungary. I have only the dim(模糊的) memory of the house we lived in, of my room and my toys. Nor do I recall clearly the large family of grandparents, aunts, uncles and cousins who gathered next door. But I do have a clear memory of the dogs, the farm animals, the local birds, and above all, the insects.
I am a naturalist, not a scientist. I have a strong love of the natural world and my enthusiasm had led me into varied investigations（调查研究）. I love discussing my favorite topics and enjoy burning the midnight oil reading about other people’s observations and discoveries. Then something happens that brings these observations together in my conscious（清醒的） mind. Suddenly you fancy you see the answer to the riddle, because it all seems to fit together. This has resulted in my publishing 300 papers and books, which some might honor with the title of scientific research.
But curiosity, keen（敏锐的） eyes, a good memory and enjoyment of the animal and plant world do not make a scientist: one of the excellent and essential qualities required is self-discipline, a quality I lack. A scientist, up to a certain point, can be made. A naturalist is born. If you can combine the two, you get the best of both worlds.
1.The first paragraph tells us the author ______.
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A．was interested in flowers and insects in his childhood |
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B．lost his hearing when he was a child |
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C．didn’t like his brothers and sisters |
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D．was born into a naturalist’s family |
2.The author can’t remember his relatives clearly because _______.
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A．he didn’t live very long with them |
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B．the family was extremely large |
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C．he was too young when he lived with them |
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D．he was fully occupied with observing nature |
3.It can be inferred from the passage that the author was _______.
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A．a scientist as well as a naturalist |
B．a naturalist but not a scientist |
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C．no more than a born naturalist |
D．first of all a scientist |
4. The author says that he is a naturalist rather than a scientist probably because he thinks he _______.
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A．has a great deal of trouble doing mental arithmetic |
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B．lacks some of the qualities required of a scientist |
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C．just reads about other people’s observations and discoveries |
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D．comes up with solutions in a most natural way |