[单项选择] In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming: in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels. Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warm the earth. However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling. Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man. The question is: which natural cause has most effect on the weather One possibility is the variable behavior of the sun. Astronomers at one research
A. that most fuel is consumed in the northern hemisphere
B. human activities
C. natural influences and carbon dioxide
D. the solar energy

[单项选择] In the past, concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet. But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming: in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels. Satellite pictures show that large areas of Antarctic ice are already disappearing. The evidence available suggests that a warming has taken place. This fits the theory that carbon dioxide warm the earth. However, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling. Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man. The question is: which natural cause has most effect on the weather One possibility is the variable behavior of the sun. Astronomers at one research
A. the greenhouse effect
B. the solar effects on the earth
C. the models of solar-weather interactions
D. the factors responsible for the global climate

[单项选择]Jane Austen's main literary concern is about ______.
A. maturity achieved through the loss of illusions
B. the love story between the rich and the poor
C. human beings in their personal relationships
D. the daily country life of the middle-class English

[单项选择]Passage Five Concern about individual privacy on the Internet has been rising. E-commerce continues to grow, but many online shoppers are concerned about how their personal information is being or might be used. According to a Harris poll, many people do not shop online because of this concern, and of those who do shop online, 41% say they are very concerned about how a company uses their personal information. Now a clear majority of Americans - 57% - favor some sort of laws regulating how personal information is collected and used. Just as people are angry at intrusions into their physical space, they now want to protect the privacy of their virtual space. For most companies, the Web can be a vast source of information about customers. Each buying that a user conducts on a Web site, from a single click to an actual online purchase, can be stored and analyzed. A company can learn about visitors to its Web site through “cookies”, which are small data files that the site create
A. the quality of the product they buy cannot be guaranteed
B. their personal information might be illegally used
C. the goods they buy cannot be delivered in time
D. the goods they buy will be lost during delivery

[单项选择]

One reaction to all the concern about tropical deforestation is a blank stare that asks the question, "Since I don’t live in the tropics, what does it have to do with me" The answer is that your way of life, wherever you live in the world, is tied to the tropics in many ways. If you live in a house, wash your hair, eat fruit and vegetables, drink soda, or drive a car, you can be certain that you are affected by the loss of tropical forests. Biologically, we are losing the richest regions on earth when, each minute, a piece of tropical forest the size of ten city blocks vanishes. As many as five million species of plants, animals and insects, 40 to 50 percent of all living things, live there, and are being irrevocably lost faster than they can be found and described. Their loss is incalculable.
Take medicine, for example. Fewer than one percent of tropical forest plants have been examined for their chemical compounds. Nonetheless, scientists have integrated
A. will continue relentlessly and cannot be prevented
B. may have critical consequences for tile survival of mankind
C. is not a really serious problem and reports have been widely exaggerated
D. is necessary for the economic development of non-industrialized countries

[多项选择]A. WHAT IS INVESTOR CONCERN ABOUT INVESTMENT CONTROL CONTROL IS VERY IMPORTANT TO MANY COMPANIES WHO ARE RELUCTANT TO TRANSFER CERTAIN VITAL RESOURCES TO ANOTHER DOMESTIC OR FOREIGN ORGANIZATION ... OPERATING COSTS MAY DECREASE AND THE SPEED OF TECHNOLOGICAL TRANSFER MAY INCREASE WHEN CONTROL IS RETAINED FOR SEVERAL REASONS. B. WHAT IS IMPORTANT WHEN MOTIVATING STAFF FINANCIAL BENEFITS CAREER DEVELOPMENT OPPORTUNITIES C. WHAT MAKES A GOOD SECRETARY BE PRUDENT AND CAREFUL HAVE GOOD RELATIONSHIP WITH OTHER COLLEAGUES

[简答题]A number of persons have expressed concern about possible health dangers to workers who use devices called video-display terminals or VDTs. (Passage One)