Then we fed them four unidentified -我要搜题网

[简答题]Then we fed them four unidentified samples of cola one at a time, regular colas for the one group, diet versions for the other.

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[单项选择]Passage Four
How can we get rid of garbage Do we have enough energy sources to meet our future energy needs
These are two important questions that many people are asking today. Some people think that man might be able to solve both problems at the same time. They suggest using garbage as an energy source, and at the same time it can save the land to hold garbage.
For a long time, people buried garbage or dumped it on empty land. Now, empty land is scarce. But more and more garbage is produced each year. However, garbage can be a good fuel to use. The things in garbage do not look like coal, petroleum, or natural gas; but they are chemically similar to these fossil fuels. As we use up our fossil-fuel supplies, we might be able to use garbage as an energy source. Burning garbage is not a new idea. Some cities in Europe and the United States have been burning garbage for years. The heat that is produced by burning garbage is used to boil water. The steam th
A. The shortage of energy and air pollution.
B. The shortage of energy and the land to hold garbage.
C. Air pollution and the shortage of fossil fuel.
D. Air pollution and the shortage of land to hold garbag

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[单项选择]Passage Four

"We’re more than halfway (中途) now; it’s only two miles farther to the tavern (客栈) ," said the driver.
"I’m glad of that," answered the stranger, in a more sympathetic way. He meant to say more but the east wind blew clear down a man’s throat if he tried to speak. The girl’s voice was quite attractive; however, later he spoke again.
"You don’t feel the cold so much at twenty below zero in the Western country. There isn’t such damp chill (潮冷)", he said, and then it seemed as if he had blamed the uncomplaining young driver. She had not even said that it was a bad day, and he began to be conscious of a warm hopefulness of spirit, and sense of pleasant adventure under all the woolen scarves.
"You’ll have a cold drive going back," he said anxiously, and put up his hand for the twentieth time to see if his coat collar was as
A. One mile.
B. About four miles.
C. Two miles.
D. Less than four miles.

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[单项选择]Passage Four

We sometimes think humans are uniquely vulnerable to anxiety, but stress seems to affect the immune defenses of lower animals too. In one experiment, for example, behavioral immunologist (免疫学家) Mark Laudenslager, at the University of Denver, gave mild electric shocks to 24 rats. Half the animals could switch off the current by turning a wheel in their enclosure, while the other half could not. The rats in the two groups were paired so that each time one rat turned the wheel it protected both itself and its helpless Partner from the shock. Laudenslager found that the immune response was depressed below normal in the helpless rats but not in those that could turn off the electricity. What he has demonstrated, he believes, is that lack of control over an event, not the experience itself, is what wakens the immune system.
Other res
A. was altered
B. was strengthened
C. was weakened
D. was not affected

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[单项选择]Mayor: Four years ago when we reorganized the city police department in order to save money, critics claimed that the reorganization would make the police less responsive to citizens and would thus lead to more crime. The police have compiled theft statistics from the years following the reorganization that show that the critics were wrong. There was an overall decrease in reports of thefts of all kinds, including small thefts.
Which of the following, if true, most seriously challenges the mayor’s argument
A. When city police are perceived as unresponsive, victims of theft are less likely to report thefts to the police.
B. The mayor’s critics generally agree that police statistics concerning crime reports provide the most reliable available data on crime rates.
C. In other cities where police departments have been similarly reorganized, the numbers of reported thefts have generally risen following reorganization.
D. The mayor’s reorganization of the police department failed to save as much money as it was intended to save.
E. (E) During the four years immediately preceding the reorganization, reports of all types of theft had been rising steadily in comparison to reports of other crimes.

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[单项选择]Passage OneWhat do we learn about today’s cola
A. It tastes the same as the past.
B. It is not refreshing now.
C. It can’t cure headaches.
D. It is much cheaper than before.

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[单项选择]Passage Four

We walked in so quietly that the nurse at the desk didn’t even lift her eyes from the book. Mum pointed at a big chair by the door and I knew she wanted me to sit down. While I watched, mouth open in surprise, Mum took off her hat and coat and gave them to me to hold. She walked quietly to the small room by the lift and took out a wet mop. She pushed the mop past the desk and as the nurse looked up, Mum nodded and said, "Very dirty floors."
"Yes. I’m glad they’ve finally decided to clean them," the nurse answered. She looked at Mum strangely and said, "But aren’t you working late"
Mum just pushed harder, each swipe of the mop taking her farther and farther down the hall. I watched until she was out of sight and the nurse bad turned back to writing in the big book.
After a long time Mum came back. Her eyes were shining.
A. Polite.
B. Patient.
C. Changeable.
D. Clever.

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[简答题]Then we fed them four unidentified samples of cola one at a time, regular colas for the one group, diet versions for the other.

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