Studies have documented that smiling is a universal and effective way to lift mood. But in the latest research on the power of the smile, researchers led by Marcus Munafo of the University of Bristol in England found that even seeing smiles on the faces of others can have a profound effect on a person's tendency toward violence or aggression -- that is, as long as that person recognizes the smile as one of happiness, and not as a sneer . Munafo and his colleagues conducted a series of experiments involving normal adults and highly aggressive teens referred to a youth program, either by educational authorities or the courts. About 70% of the teens already had a criminal record. In the first experiment, 40 healthy adults, aged 1830, looked at facial expressions on the computer ranging from happy to angry with increasingly difficult ones to _ in between. Participants were asked how angry they felt and then had to rate the images as displaying either happiness or anger -- there was no option for "unclear" or "unable to tell". From these ratings, the scientists could generate a score of their preference toward happiness or anger. Previous research found that aggressive people -- including violent offenders -- tend to consider even a common expression as an unfriendly one. "You looking at me?" can easily turn a simple question into a tragic fight. Based on their original scores, half of the participants were then told by the computer that some of the unclear faces that they had rated as angry should have been scored as happy. This was intended to guide them toward judging the inbetween faces more positively. The other 20 received feedback that simply proved their first choices, creating a control group. After this training, both groups were tested again and the group that received the biased feedback shifted its ratings of unclear faces toward the happy side. Participants were also asked to rate their level of angry feelings again after completing the second round of testing. Those who were trained to consider... What happens to the participants after receiving certain feedbacks? A) They can interpret unclear facial expressions. B) They put an end to their aggressive behavior. C) They tend to judge the inbetween faces positively. D) It makes no difference in their level of aggressive behavior.
C
One suicide and three attempted ones that left two seriously injured, all by middle school students in Shanghai last week, cast a gloom over an otherwise happy beginning of a new term there. The terrible things took place even as the Ministry of Education and China Central Television organized the first lesson on TV about personal safety for students last Monday, the first day of the new semester. Such things suggest that this first lesson is more than necessary. Not only should kids be taught how to protect themselves in times of emergency, they should also be made aware of the value of tile2 One student was prevented from killing himself from his school building. He said he just could not accept the fact of not being able to go tip to a higher grade with his classmates, and thus considered life meaningless. Another 12-year-old boy who jumped off a building to his death was said to have been a good student, and no one could say why he chose to end his life. Obviously, their inner worlds were seriously affected. But when they chose to take their own lives, their irresponsible choice was clearly the result of a lack of adequate understanding of the value of life. The ancient sage Confucius stressed that one must protect even one's hair and skin from being hurt. He meant that the sense of responsibility for one's parents was important as far as the value of life was concerned. When we talk about the enthusiasm of making contributions to our motherland, we are referring to values that constitute the nobler part of the meaning of life. The value of life should be far beyond the concern for personal interest. Undoubtedly, those kids who chose to take their own lives were faced only with their own sadness that they could not overcome. If they had a little concern for their parents, for their parents' expectations of them or for their own potential contributions to this world in the future, they would not have gone that far. Difficulties or sufferings are supposed to help kids develop their sense of... From the passage we know that _ . A) four students took their lives in Shanghai last week B) being unable to catch up with other classmates led to the 12-year-old boy killing himself C) the importance of life lies in the sense of responsibility for parents D) parents are supposed to tell the kids the bitter side of life as well as the sweet side
D
Q: In learning a foreign language, one should first pay attention to speaking. It is the groundwork of reading and writing. You'd better try your best to speak. Don't be afraid of making mistakes. But be careful not to let them keep you from improving the language. While you are doing this, a good exercise is to write - keep a diary, write notes, letters or articles, then if you can, ask someone to go through what you have written and tell you where is wrong . Many mistakes in your speaking will be easily found when you write. Through correcting the mistakes, you can do better in learning a language. If you are slow in speaking, don't worry. One of the helpful ways is by reading, either aloud or to yourself. The important thing is to choose something interesting to read. It can't be too difficult for you. When you are reading in this way, don't stop to look up the words if you can guess their meanings or if they have nothing important to do with the sentence. You can do that some other time . The best title of this passage might be _ . A) How to Learn a Foreign Language B) How to Improve Reading C) How to learn Writing D) More reading, Less speaking
A: A
Q: When you want to go shopping, decide how much money you can spend on new clothes.Think about the kind of clothes you really need.Then look for those clothes you really need.Then look for those clothes on sale. There are labels inside all new clothes.The labels tell you how to take care of your clothes.The label for a shirt may tell you to wash it in warm water.A sweater label may tell you to wash in cold water.The label on a coat may say "dry clean only", for washing may ruin this coat.If you do as the directions on the label, you can keep your clothes looking their best for a long time. Many clothes today must be dry cleaned.Dry cleaning is expensive.When buying new clothes, check to see if they will need to be dry cleaned.You will save money if you buy clothes that can be washed. You can save money if you buy clothes that are well made. Well-made clothes last longer.They look good even after they have been washed many times.Clothes that cost more money are not necessarily better made.They do not always fit better.Sometimes less expensive clothes look and fit better than more expensive clothes. If you want to save money, you had better buy clothes that _ . A) don't fit you B) don't last long C) need to be dry cleaned D) can be washed
A: D