题目内容
Besides relevant theories and keen logic, a scientist who does research in economic psychology and who wants to predict the way in which consumers will spend their money must study consumer behavior. It’s vital for his credit as a qualified economist. He must obtain numbers and material both on the resources of consumers and on the efforts that tend to encourage or discourage money spending.
If an economist were asked which of the three groups borrow most——people with rising incomes, stable incomes or declining incomes——he would probably answer: those with declining incomes. Actually, in the past 5 years, the answer was: people with rising incomes. This shows us that traditional assumptions about earning and spending are not always reliable. Another traditional assumption is that if people who have money expect prices to go up, they will hurry to buy. If they expect prices to go down, they will postpone buying. But research surveys have shown that this is also not always the case. Their expectations of price increases may not stimulate buying. One typical attitude was expressed by the wife of a mechanic in an interview at a time of rising prices. “In a few months,” she said, “we’ll have to pay more for meat and milk. We’ll have less to spend on other things.” Her family had been planning to buy a new car but they postponed this purchase. Furthermore, the rise in prices that has already taken place may be hated and buyer’s resistance may be caused. This is shown by the following typical comment of the wife: “I just don’t pay these prices: they are too high.”
Traditional assumptions should be investigated carefully, and factors of time and place should be considered. The investigations mentioned above were carried out in America. Research conducted at the same time in Great Britain, however, produced results that were more in agreement with traditional assumptions about saving and spending patterns. The condition most beneficial to spending appears to be price stability. If prices have been stable and people have become accustomed to considering the current prices “right”, they are likely to buy. Thus, in a society of good economy which maintains consumer confidence, it appears that the common business policy of maintaining stable prices with occasional sales or discounts is based on a correct understanding of consumer psychology.
72. According to the passage, it is essential for a successful economist to ______.
A. know about economic theories
B. be capable of logical thinking
C. predict the latest national economy
D. to understand consumers’ spending habits
73. The example of the mechanic’s wife is intended to show that ______.
people tend to buy more when prices are expected to fall
people tend to buy less when prices are expected to fall
people tend to buy more when prices are expected to rise
people tend to buy less when prices are expected to rise
74. Findings in investigations in Britain show _____.
consumer behaviour may vary in different places
Britain and America share similar saving and spending patterns
Britain is important in economic research
occasional discounts and sales are important
75. According to the passage, what is most helpful in promoting spending?
A. Big discount. . B. Good consumer confidence.
C. Steady price. D. Positive consumer psychology.
72-75 D D A C
Besides containing attractive flowers, trees and other plants that beautify the community, eco-friendly rain gardens are healthy for the environment and the people living and working nearby.
A rain garden (雨水花园)is not very different from a traditional garden. It is just a far more eco-friendly garden. Usually it is built lower than the ground. Rain gardens make smart use of rain and storm water by temporarily holding water from rain and storms and letting it soak(浸入)slowly into the ground before it runs into streams or enters the public drinking water supply.
Thus, a rain garden keeps the water, allowing it to be used as needed by plants in the rain garden, rather than flowing immediately into nearby streams and going unused. The water will soak slowly into the ground within a day or two. This creates an advantage that the rain garden does not allow mosquitoes to breed. This is a simple, attractive, and eco-friendly “green” way to treat storm water.
What’s more, planting a rain garden helps reduce pollution and improve the environment. Without using expensive machinery and chemicals, rain gardens remove harmful chemicals in the rainwater and cut down on the amount of pollution reaching streams and rivers by up to 30%.
Native plants are recommended for rain gardens because they are more used to the locals climate, soil, and water conditions. They may attract local wildlife such as native birds. Water your rain garden immediately after planting and once a week, unless you have had at least an inch of rain during the week. Once the native plants establish the necessary root system, it will require little care.
Often, local governments and private businesses develop large rain gardens in their yards and in public parks as a way to improve the environment and solve flooding problems. However, you don’t need to be a professional environmental engineer to create a rain garden. As long as you’re eco-conscious homeowners, you can help the environment by building smaller rain gardens in your yards.
【小题1】Which of the following is NOT RIGHT for the function(功能) of rain gardens?
| A.They are good for living conditions. |
| B.They increase pollution. |
| C.They can beautify the community. |
| D.They improve the environment. |
| A.They can keep the rain and storm water. |
| B.They can help reduce the pollution problem. |
| C.They can be healthy for the people around. |
| D.They can make the environment more beautiful. |
| A.they cost less and are much easier to get |
| B.they may attract local wildlife to come |
| C.they require little care from the local gardener |
| D.they are more used to the local growing conditions |
| A.They need little water after all the plants are planted. |
| B.They usually need at least an inch of rainwater a week. |
| C.They may attract local birds and change the locals climate. |
| D.They may reduce the water pollution problem by 70%. |
| A.Homeowners. | B.Students. | C.Engineers, | D.Educators. |
China’s Tianhe-1 has a computing speed of 2,507 trillion(万亿)calculations a second, making it the fastest computer in the world. It is also 40 percent faster than the world’s second fastest supercomputer, Cray XT5 Jaguar, in the US, kept at a national laboratory in Tennessee, according to the New York Times. Jack Dongarra, a University of Tennessee computer scientist, told NYT that the Chinese supercomputer is faster than the existing Number One machine.
Building the fastest supercomputer has become a source of national pride, as these machines are valued for their ability to solve problems in areas like defense, energy and science. These problems are related to national interests. Supercomputing technology is also found in business. Oil and gas companies use supercomputers to find oil and gas.
Obviously, research centers with large supercomputers attract top scientific talents. This adds extra importance to the machines—they’re more than just huge computers.
China’s new supercomputer will be used to speed up greatly scientific calculations, such as hurricane and tsunami modeling, cancer research, car design and even studying stars.
In 2008, two US scientists put together a step-by-step guide on how to build a supercomputer using PlayStation 3 video-game consoles(控制台). Modern supercomputers are built by combining thousands of small computer servers(服务器)and using software to turn them into one large computer. Really, any organization with enough material and technology can create a fast machine.
The Chinese system follows that model by linking thousands upon thousands of computer servers. But the secret behind the system—and the technological achievement—is China’s own networking technology. “That technology was built by them,” Dongarra said. “They are taking supercomputing very seriously and using a lot of time and money.”
“China is still a developing country,” said Sha Chaoqun, manager at Dawning Company which is the leading supercomputer maker in China. “Maybe one day, China’s total computing power can be greater than that of the US, but there is still a long way to go before we get there.”
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Paragraph outline |
Supporting details |
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China has developed the world’s fastest supercomputer. |
◇Tianhe-1 has a high computing speed, which 1._______ it the fastest computer in the world. ◇Tianhe-1 is 40 percent faster than the 2.______ fastest supercomputer in the world. ◇3._____ Jack Dongarra, we learn that the Chinese supercomputer is faster than the existing Number One machine. |
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Many countries see the fastest supercomputer as a source of national 4.______ and are making efforts to develop it. |
◇The high-speed computer is 5.________ to solve problems related to national interests. ◇Besides 6.______, supercomputing technology can also be found in areas of defense, energy and science. ◇It’s obvious that top scientific talents are 7.______ to research centers with large supercomputers. |
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The secret behind supercomputers is networking technology. |
◇By using the technology built by Chinese people, taking it 8._______ and devoting lots of time and money, China has achieved a lot. |
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Mr. Sha showed a conservative(保守的) 9._______ toward the development of computing power. |
◇10._________ the greater computing power China may have in the future, there is still a long way to go. |
Read the following text and choose the most suitable heading from the list A-F for
each paragraph. There is one extra heading which you do not need.
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1.
It's something that most of us find annoying. We're on our way home after a hard day at school and trying to have a quiet chat with a classmate or get in a little reading, when our peace is disturbed by someone screaming into their cell phone: "I'M ON THE BUS !"
2.
A survey published last week suggests Americans do not like the impolite use of today's electronic communication gadgets. Besides noisy phone users, sending and receiving e-mails while in company are also as very poor manners, reports MSNBC.com.
3.
One of the practices that participants in the survey most objected to was the use of phones, iPods and other devices during religious festivals. Some 90 per cent of those surveyed thought this was insensitive and disrespectful.
4.
The website quotes Dr Genevieve Bell, conductor of the survey and director of Intel's User Experience Group as saying: "Theses are issues about common sense." But she believes that the rights and wrongs of the public use of technology are still in the process of formation.
5.
The survey does suggest, according to MSNBC, that most Amencans accepted that the technologies are a fact of modern life. They had nothing against the use of laptops and cell phones in bathrooms. And an electronic thank-you note was just as acceptable as a handwritten one.