Decision-making under Stress
A new review based on a research shows that acute stress affects the way the brain considers the advantages and disadvantages, causing it to focus on pleasure and ignore the possible negative (负面的) consequences of a decision.
The research suggests that stress may change the way people make choices in predictable ways. “Stress affects how people learn,” says Professor Mara Mather. “People learn better about positive than negative outcomes under stress.”
For example, two recent studies looked at how people learned to connect images(影像) with either rewards or punishments. In one experiment, some of the participants were first stressed by having to give a speech and do difficult math problems in front of an audience; in the other, some were stressed by having to keep their hands in ice water. In both cases, the stressed participants remembered the rewarded material more accurately and the punished material less accurately than those who hadn’t gone through the stress. This phenomenon is likely not surprising to anyone who has tried to resist eating cookies or smoking a cigarette while under stress –at those moments, only the pleasure associated with such activities comes to mind. But the findings further suggest that stress may bring about a double effect. Not only are rewarding experiences remembered better, but negative consequences are also easily recalled.
The research also found that stress appears to affect decision-making differently in men and women. While both men and women tend to focus on rewards and less on consequences under stress, their responses to risk turn out to be different. Men who had been stressed by the cold-water task tended to take more risks in the experiment while women responded in the opposite way. In stressful situations in which risk-taking can pay off big, men may tend to do better, when caution weighs more, however, women will win.
This tendency to slow down and become more cautious when decisions are risky might also help explain why women are less likely to become addicted than men: they may more often avoid making the risky choices that eventually harden into addiction.We can learn from the passage that people under pressure tend to ______.
A.keep rewards better in their memory |
B.recall consequences more effortlessly |
C.make risky decisions more frequently |
D.learn a subject more effectively |
According to the research, stress affects people most probably in their ______.
A.ways of making choices | B.preference for pleasure |
C.tolerance of punishments | D.responses to suggestions |
The research has proved that in a stressful situation, ______.
A.women find it easier to fall into certain habits |
B.men have a greater tendency to slow down |
C.women focus more on outcomes |
D.men are more likely to take risks |
When I was about 12, I had an enemy, a girl who liked to point out my shortcomings(缺点). Sometimes she said I was thin. Sometimes she said I was lazy. Sometimes she said I wasn’t a good student. Sometimes she said I talked too much, and so on. I tried to put up with(忍受) her as long as I could. At last, I became very angry. I ran to my father with tears in my eyes.
He listened to me quietly, and then he asked, “Are the things she said true or not? Mary, didn’t you ever wonder what you’re really like? Go and make a list of everything she said and mark the points that are true. Pay no attention to the other things she said.”
I did as he told me and to my surprise, I discovered that about half the things were true.
I brought the list back to my dad. He refused to take it. “That’s just for you,” he said. “You know better than anyone else the truth about yourself. When something said about you is true, you’ll find it will be helpful to you. Don’t shut your ears. Listen to them all, but hear the truth and do what you think is right.”
Many years have passed. The situation often appears in my mind. In our life we often meet with some trouble and we often go to someone and ask for advice. For some advice you will treasure(珍惜) all your life!What did the writer’s father do after he heard her complaints(抱怨)?
A.He told her not to pay attention to what her “enemy” had said. |
B.he let her continue to put up with her “enemy”. |
C.He told her to write down all her “enemy” had said about her. |
D.He agreed with her “enemy”. |
The writer felt ______ when she did the things as her father had told her.
A.sad | B.angry |
C.disappointed | D.surprised |
Which of the following can we know from the passage?
A.The writer is grateful to her father. |
B.The “enemy” thought the writer studied hard. |
C.The writer and her “enemy” became best friends at last. |
D.The “enemy” thought the writer was pretty. |
Which of the following can be the best title of the passage?
A.The Best Advice I Ever Had |
B.A Serious Criticism(批评) |
C.What People Say About You Is Always Right |
D.My Parents |
In the United States, 30 percent of the people have a “weight problem”. To many people, the cause is obvious: they eat too much. But scientific evidence (证据) does little to support this idea. Going back to America of 1910, we find that people were thinner than today, yet they ate more food. In those days people worked harder physically, walked more, used machines much less, and didn’t watch television.
Several modern studies, moreover, have shown that fatter people don’t eat more on average than thinner people. A 1979 study of 3,545 London office workers showed that fat people eat less than slim (苗条的) people.
Studies also show that slim people are more active than fat people. A study by a research group at Stanford University found the following interesting facts:
The more the man ran, the greater loss of the body fat.
The more they ran, the greater increase in food intake.
Thus, those who ran the most ate the most, yet lost the greatest amount of body fat.Nowadays many Americans have the problem that ______.
A.they lose too much body fat | B.they work too hard |
C.they are too fat | D.they are too slim |
According to the passage, how many people in 900 Americans have a “weight problem”?
A.150. | B.300. | C.600. | D.270. |
Is there any scientific evidence to support the idea that eating too much is the cause of a “weight problem”?
A.We are not sure. |
B.Of course, there is some evidence to support this. |
C.There is hardly any scientific evidence to support this. |
D.Yes, there is plenty of evidence. |
The Americans in 1910 ________.
A.had more problems |
B.ate less food but had more physical activities |
C.ate less food and had less physical activities |
D.ate more food and had more physical activies |
A man walked into a restaurant and asked for a glass of water. Then the girl in the restaurant pulled out a gun and shot him dead. Why? People asked to give reasonable explanation for the strange happening. All kinds of suggestions were made.
She was able to recognize him as a dangerous prisoner who ran away from the prison; she thought he was to rob her; she misheard what he said; asking for a glass of water had a special meaning for her and so on. All these explanations showed that the gun was used on purpose(有目的) to harm the man. The idea was easily accepted.
In fact, the explanation was that the man had an attack of hiccups(严重打嗝). It so happened that the girl in the restaurant knew that a great and sudden fear could get rid of hiccups. But she didn’t know the gun happened to be loaded(上子弹) that day.The man asked for a glass of water because ______.
A.he was having an attack of hiccups |
B.he was walked into a restaurant |
C.he wanted to kill himself |
D.he was too thirsty |
The girl used a gun to the man because _______.
A.she wanted to kill him |
B.she hated him |
C.what the man said had a special meaning |
D.she wanted to give him a sudden and great fear |
Why did the man have an attack of hiccups?
A.Because he ate too much. |
B.Because he was too old. |
C.Because he ate too fast. |
D.The passage didn’t tell us. |
Which is TRUE to the passage?
A.The man just ran away from a prison. |
B.The man wanted to rob the girl. |
C.The girl misheard what the man said. |
D.It is the girl’s kind help that happened to kill the man. |
Most people today think of chocolate as something sweet to eat or drink and can be easily found in stores around the world. It might surprise you that chocolate was once highly treasured.
The wealthy people of Spain first enjoyed a sweetened chocolate drink. Later, the popularity of the drink spread throughout Europe. Chocolate remained a drink that only wealthy people could afford to drink until the eighteenth century. During the period known as the Industrial Revolution, new technologies helped make chocolate less costly to produce.
Farmers grow cacao trees in many countries in Africa, Central and South America, but these trees are difficult to grow. They require an exact amount of water, warmth, soil and protection. After about five years, cacao trees start producing large fruits called pods, which grow near the trunk of the tree. The seeds inside these pods are harvested to make chocolate. Growing cacao is very hard work for farmers. Today, chocolate industry officials, activists, and scientists are working with farmers. They are trying to make sure that cacao can be grown in a way that is easy for the farmers and safe for the environment.
The market value of the yearly cacao crop around the world is more than five billion dollars. Chocolate is especially popular in Europe and the United States. Each year, Americans eat an average of more than 5 kilograms of chocolate per person. Specialty shops that sell costly chocolate are also very popular. Many offer chocolate lovers the chance to taste chocolate grown in different areas of the world.
We can learn from the passage that chocolate was .
A.served with a drink in old times |
B.popular with people around the world |
C.a drink enjoyed by the rich in old times |
D.bought easily in stores in old times |
What made it possible to produce chocolate inexpensively?
A.A warm climate. | B.Official aid. |
C.New technologies. | D.Scientific protection. |
What should ideal cacao farming be like?
A.Simple and time-saving. |
B.Safe and labour-saving |
C.Easy and labour-saving |
D.Easy and environment-friendly. |
Which of the following is TRUE according to the passage?
A.Scientists are trying to help people find various cacaos. |
B.The chocolate industry is developing rapidly only in European countries. |
C.People in America love to produce dear chocolate. |
D.Chocolate making is probably a big international business. |
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.
Doctors have long known that .
A.one may lose his hearing when he hears a terribly loud noise. |
B.one may become deaf when he hears a loud noise. |
C.loud noises can cause damage to the hearing of the young people only |
D.common sounds at home are not harmful to the ear |
One conclusion you can draw from the passage is that aspirin .
A.makes hearing damage from loud noise worse |
B.should never be taken more than four grams |
C.can damage one’s hearing when it is given more than four grams daily |
D.always increases hearing loss by two times |
Millions of Americans are in danger of suffering hearing loss because they .
A.take too much aspirin |
B.often take air trips |
C.like listening to loud music |
D.have too much loud noises at home and at work |
The American scientist did his experiment in order to find .
A.how much aspirin would affect a person’s hearing |
B.how much aspirin should be given in the treatment of the patients with hearing damage from loud noise |
C.whether aspirin would increase the temporary hearing damage from loud noises |
D.whether the people who had hearing damage should use aspirin |