题目内容
Given more money, we ________ the experiment better．Don't complain any more．
- A.would have done
- B.would do
- C.will do
- D.did
阅读快车系列答案Doctors have known for a long time that extremely loud noises can cause hearing damage or loss. The noise can be the sound of a jet airplane or machines in factories of loud music or other common sound at home and at work. A person only needs to hear the noise for little more than one second to be affected.
An American scientist has found that using aspirin (阿斯匹林) increase the temporary (暂时的)hearing loss or damage from loud noise. He did an experiment using a number of students at a university who all had normal hearing. He gave them different amounts of aspirin for different periods of time, then he tested their hearing ability. He found that students who were given four grams of aspirin a day for two days suffered much greater temporary hearing loss than those who did not use aspirin. The hearing loss was about two times as great.
The scientist said millions of persons in the U.S. use much larger amounts of aspirin than were used in his experiment. He said these persons face a serious danger of suffering hearing loss from loud noise.
1.Doctors have long known that__________.
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A．one may lose his hearing when he hears a terribly loud noise. |
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B．one may become deaf when he hears a loud noise. |
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C．loud noises can cause damage to the hearing of the young people only |
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D．common sounds at home are not harmful to the ear |
2.This passage suggests that one’s hearing________.
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A．will be damaged even if he has heard a loud noise for only little more than one second |
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B．will be damaged even if he has heard a loud noise less than one second |
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C．will not be damaged if he has heard a loud noise for only little more than one second |
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D．will not be damaged if he has little more than one second to get ready |
3.One conclusion you can draw from the passage is that aspirin________.
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A．makes hearing damage from loud noise worse |
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B．should never be taken more than four grams |
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C．can damage one’s hearing when it is given more than four grams daily |
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D．always increases hearing loss by two times |
4.Millions of Americans are in danger of suffering hearing loss because they__________.
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A．take too much aspirin |
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B．often take air trips |
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C．like listening to loud music |
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D．have too much loud noises at home and at work |
5.The American scientist did his experiment in order to find ________.
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A．how much aspirin would affect a person’s hearing |
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B．how much aspirin should be given in the treatment of the patients with hearing damage from loud noise |
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C．whether aspirin would increase the temporary hearing damage from loud noises |
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D．whether the people who had hearing damage should use aspirin |
Dogs have an understanding of fair play and become angry if they feel that another dog is getting a better deal, a new study has found.
The study looked at how dogs react when a companion is rewarded for the same trick in an unequal way. Friederike Range, a researcher at the University of Vienna in Austria, and her colleagues did a series of experiments with dogs who knew how to respond to the command “give the paw “. The dogs were normally happy to repeatedly give the paw, whether they got a reward or not. But that changed if they saw that another dog was being rewarded with a piece of food, while they received nothing.
“We found that the dogs hesitated significantly longer when obeying the command to give the paw,” the researchers write. The unrewarded dogs eventually stopped cooperating.
Scientists have long known that humans pay close attention to inequity. But researchers always assumed that animals didn’t share the trait. “The argument was that this is a uniquely human phenomenon,” says Frans de Waal, a professor of psychology at Emory University in Atlanta.
That changed in 2003 when he and a colleague did a study on monkeys. The monkeys had to hand a small rock to researchers to get a piece of cucumber in return. They were happy to do this. But if they saw that another monkey was getting a more delicious reward, a grape, for doing the same job, they would throw away the food and rock, and at some point just stopped performing.
In that experiment, the monkeys considered the fairness of two different types of payment. But when Range and her colleagues did a similar study with their trained dogs, testing to see if dogs would become upset if they only got dark bread when other dogs received sausage, they found that as long as the dogs got some kind of food payment, even if it wasn’t the most delicious kind, the animals would play along.
1.How did the dogs in Range’s study react to the order of “giving the paw”?
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A．They took the order even without being rewarded. |
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B．They took the order only when rewarded. |
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C．They turned a deaf ear to repeated orders. |
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D．They hesitated longer when given repeated orders. |
2. The research by Frans De Waal in 2003 ___________.
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A．originated from Range’s research on dogs. |
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B．showed that animals do pay attention to inequity. |
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C．began the argument that only humans are aware of inequity. |
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D．was conducted to find out how monkeys reacted to humans’ orders. |
3. Some monkeys in the research become angry because they found another monkey _______.
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A．was given less work. |
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B．was given more food. |
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C．was given the same type of food. |
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D．was given more delicious food. |
4. Range found that, compared with monkeys, dogs ____________.
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A．care more about whether they are rewarded. |
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B．care less about what they are rewarded with. |
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C．care more about what they are ordered to do. |
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D．care less about who gives them orders. |
5. What is the main idea of the passage?
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A．Animals have various ways to show their anger. |
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B．Dogs are less intelligent than monkeys. |
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C．Dogs have a sense of fairness. |
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D．Most animals want to be rewarded equally. |