(Question)
Read the article and select the best answer. Article: Empathy lets us feel another person's pain and drives us to help. Do any other animals feel empathy? Scientists recently found that rats do, too. Most people don't like rats. In many people's eyes, rats are only bad. But Jean Decety and his partners at the University of Chicago did an experiment. It showed that rats are kind, warm-hearted animals. They can feel each other's pain. Scientists placed pairs of rats in plastic cages for two weeks. During this time they got to know each other. Then they put one of the rats from each pair into a small container in the cages. The small container had a door. It was so designed as to fall to the side when the free rat touched it. Many of the trapped rats squeaked to show their discomfort. The other rats of the pairs could see their suffering friends clearly. In most pairs, the free rats would become very worried about their friends. They kept trying to save their friends again and again throughout the month. Scientists put the rats' favorite chocolate in the cages, but the rats didn't eat it until they had saved their friends successfully. Scientists also found that female rats seemed to act more empathetic than male rats. "The results are the first to show that rats take action in response to another's trouble," Decety said. "Monkeys and chimpanzees have similar behavior. But unlike those animals, rats can be ready used in laboratory studies. They will help us to learn which parts of the brain lead to empathy and helping behavior and whether empathy is natural." Question: Why didn't the free rats eat the chocolate at first? Options: A: Because they were not hungry at that time. B: Because chocolate was not their favorite food. C: Because they wanted to save the trapped rats first. D: Because they were afraid that the chocolate was bad.
(Answer)
C

(Question)
Read the article and select the best answer. Article: Adding math talk to story time at home is a winning factor for children's math achievement, according to a new research from the University of Chicago. The study from psychologists Sian Beilock and Susan Levine shows a marked increase in math achievement among children whose families used Bedtime Math, an iPad app that delivers engaging math story problems for parents and children to solve together. Even children who used the app with their parents as little as once a week saw gains in math achievement by the end of the school year. The app's effect was especially strong for children whose parents tend to be anxious or uncomfortable with math. Previous research from this group has demonstrated the importance of adults' attitudes about math for children's math success. For example, a recent study found that math-anxious parents who help their children with math homework actually weaken their children's math achievement. The new findings demonstrate that structured, positive interactions around math at home can cut the link between parents' uneasiness about math and children's low math achievement. "Many Americans experience high levels of anxiety when they have to solve a math problem, with a majority of adults feeling at least some worries about math," said Beilock, professor in Psychology and author of Choke, a book about stress and performance. "These math-anxious parents are probably less likely to talk about math at home, which affects how competent their children are in math. Bedtime Math encourages a dialogue between parents and kids about math, and offers a way to engage in high-quality math interactions in a low-effort, high-impact way." Study participants included 587 first-grade students and their parents. Families were given an iPad installed with a version of the Bedtime Math app, with which parents and their children read stories and answer questions involving math, including topics like counting, shapes and problem-solving. A control group received a reading app that had similar stories without... Question: Which is the best title for the passage? Options: A: High-quality math interactions improve performance. B: Frequent use of app can develop problem solving ability. C: Low-effort activities create good parent-child relationship. D: High-anxiety parents influence children's attitude about math.
(Answer)
A

(Question)
Read the article and select the best answer. Article: Today most Chinese teenagers are happy to be favored by two parents and four grandparents in their families. But have you ever thought about how to take care of four to twelve old people when you grow up and get married? This could be a problem for most Chinese youths as China is entering a new stage of an aging society. An aging society refers to one where 10 percent or more of its population is over 60. By the end of 2007, Chinese over 60 years old have made up 11.7 percent of the nation's total population. "China is getting old before becoming rich,"said Cai Chuang, a professor at the Chinese Academy of Social Sciences. The population increase that has powered Chinese growth for three decades will give way over the next ten years to a rapid aging of the society. This will lead to weaker economic growth, because of a lack of labor resources. As a result of the family planning policy, it is expected that the country's total working population will decrease after 2015. China is not the only country getting old. More that 60 countries have become aging societies and one in three people in the European Union is a senior citizen. However, experts said that China doesn't have a highly developed social security network to support the old. Social security is an insurance program protecting those in need, including the old, the disabled and others. Question: If China enters an aging society, _ . Options: A: there will not be enough labor resources B: the family planning policy will be ended C: everyone needs to take care of four to twelve old people D: China will have a highly developed social security network
(Answer)
A