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案例分析题When I came to the United States, I didn’t speak any English. When anyone asked me something, I always said "Yes." But I really didn’t know what they were saying. Once I went to a large store to buy a mouse (鼠标) for my computer. When I got there, I was worried about the price. At last I found a cheap mouse. I checked the price to make sure of it before I went to the cashier. While I was at the cashier’s, she asked me something. I said, "Yes," even though I didn’t understand what she said. Then she told me what I had to pay. The price was different. I knew something was wrong. But I was afraid to say anything. Later, at home, I thought about what the cashier said to me. What made the price go up Then my husband came home. He looked at the receipt and found out what was wrong. The cashier’s question was, "Would you like a one-year warranty (保修)" and my answer was, "Yes." Since that day, I have never said "Yes" before I understand the question. And I have never paid more than the actual (实际的) price. Before going to the cashier, the writer knew nothing about the price of the mouse.（）
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案例分析题Temperatures (温度) around the world are going up year after year. A report shows that the ten warmest years since 1860 all happened after 1987. Of those ten, nine happened after 1990. The report also says the increase (上升) in temperature over the past 25 years is greater than that over the past 1,000 years. Ken Davidson, a world-famous scientist, agrees with the scientific findings that global (全球的) warming is happening just because of what people do on the earth. He says one of the most important reasons for the higher temperatures is the fact that cities are getting bigger and bigger. Studies show that cities are hotter than other places. Reports show that many places around the world have had unusual weather in the past few years because of global warming. Most of Asia, for example, is warmer than before, and in India hundreds of people have even died from the hot and dry weather each year. Parts of Africa have often had unusually heavy rains while other parts of Africa have had unusually dry weather. In parts of Europe, more than 100 people died from heavy rainfall in September 2002. Yet large parts of North and South America had very dry weather in the same year. What is the text about（）
案例分析题Old Mr. Green has lived in southern Iowa for a very long time. He has worked on the land all his life and he sees no reason to stop now. His legs have bothered him for many years, and his hands have pain (疼痛). His wife has been asking him to get some help from a doctor, but he has never listened to her. He has known old doctor since he was a boy, so of course he trusts (信任) him. But it’s one thing to trust a doctor, another to really go and see him. At last, when he cannot work because of the pain, he has to let his wife take him to see the old doctor. "How long have you had problems with your legs, Mr. Green" "For three years!" "And your hands They’ve given you pain for a few years, right I think you might have arthritis (关节炎). I know you’ve been taking care of your farm by yourself all these years. From now on you’d better get someone to help you on the farm and keep yourself warm. Come and see me again in two months." Mr. Green feels sorry that he didn’t come to see the doctor earlier. How does Mr. Green feel about his visit to the doctor（）
The concept of obtaining fresh water from icebergs that are towed to populated areas and arid regions of the world was once treated as a joke more appropriate to cartoons than real life. But now it is being considered quite seriously by many nations, especially since scientists have warned that the human race will outgrow its fresh water supply faster than it runs out of food. Glaciers are a possible source of fresh water that has been overlooked until recently. Three-quarters of the Earth’s fresh water supply is still tied up in glacial ice, a reservoir of untapped fresh water so immense that it could sustain all the rivers of the world for 1,000 years. Floating on the oceans every year are 7,659 trillion metric tons of ice encased in 10000 icebergs that break away from the polar ice caps, more than ninety percent of them from Antarctica. Huge glaciers that stretch over the shallow continental shelf give birth to icebergs throughout the year. Icebergs are not like sea ice, which is formed when the sea itself freezes, rather, they are formed entirely on land. breaking off when glaciers spread over the sea. As they drift away from the polar region, icebergs sometimes move mysteriously in a direction opposite to the wind, pulled by subsurface currents. Because they melt more slowly than smaller pieces of ice, icebergs have been known to drift as far north as 35 degrees south of the equator in the Atlantic Ocean. To corral them and steer them to parts of the world where they are needed would not be too difficult. The difficulty arises in other technical matters, such as the prevention of rapid melting in warmer climates and the funneling of fresh water to shore in great volume. But even if the icebergs lost half of their volume in towing, the water they could provide would be far cheaper than that produced by desalinization, or removing salt from water. What is the main topic of the passage
案例分析题Many people believe they should drink eight glasses of water a day. That is (41) they have been told all their life. (42) a new report says people should drink as (43) water as they feel like drinking. The report does not (44) people how many glasses of water to drink. Instead, (45) says women should get about 2.7 litres (升) of water a day, (46) that men should get about 3.7 litres. In each (47) , that is more than eight glasses. As you might (48) , the report says people need to drink more water (49) they are doing physical (体力的) work. The same is true of those who live in hot weather. These people could need much more water (50) others. 43（）。
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