One day a teacher was giving her young students a lesson on how the government works. She was trying to explain the principle of income tax . "You see ," she began , speaking slowly and carefully , "each person who works must pay part of his or her salary to the government . If you make a high salary, your taxes are high. If you don't make much money, your taxes are low ." "Is that clear?" she asked. "Does everyone understand the meaning of income tax?" The students nodded. Are there any questions?" she asked. The students shook their heads. "Very good!" she said." "Now, I would like you to take a piece of paper and write a short paragraph on the subject of income tax." Little Joey was a slow learner. He had lots of problems with spelling and grammar, but this time he at least seemed to understand the task.. He took his pen and after a few minutes, he handed the teacher the following composition: Once I had a dog. His name was Tax. I opened the door and in come Tax. Little Joey _ . A) wrote a paragraph about his dog B) grasped what income tax meant C) was clear about the subject D) did as what he was told to do
A
(Question)
Where do you keep ice? In die freezer, of course. That's what scientists might have thought when they were looking for a safe place to store ice from mountain glaciers from around the world. They've decided to store ice in Antarctica because global warming is causing some of the glaciers in places like the Alps to melt. Jerome Chappellaz of the French National Centre for Scientific Research is involved in creating an ice vault there. He says: "We are probably the only scientific community whose sample is in danger of disappearing from the face of the planet. If you work on rocks or on tree rings, the raw material is still here and will be for many centuries." And why do scientists need to study ice from the Alps, for example? Ice formed on the top of a mountain is made of snow accumulated over thousands of years. Trapped air bubbles contain samples of the atmosphere that existed when that ice was formed. Ice is a record of climate By examining ice. we know carbon dioxide in the atmosphere is higher now than in the last three million years. Researchers use this kind of data to build computer models and try to predict what might happen in the future. The ice vault will be housed in a snow cave at the Concordia Research Station, which is operated by scientists from France and Italy. The ice samples will be sealed in bags and placed 10 meters below the surface. at a constant temperature of -50*C. This will put the scientists' minds at rest. Losing the ice samples would be a disaster, and nobody wants to see a mine of scientific knowledge lost forever in a giant pool. What do scientists think of storing ice in Antarctica? A) They consider it an easy job. B) They're not optimistic about it. C) They think it will cause disasters. D) They think it's a reliable way.
(Answer)
D
Ques: Many people think of the brain as a mystery.They don't know much about intelligence and how it works.When they do think about what intelligence is,many people believe that a person is born smart,average,or dumb--and stays that way in the whole life.But new research shows that the brain is more like a muscle--it changes and gets stronger when you use it.And scientists have been able to show just how the brain grows and gets stronger when you learn. Everyone knows that when you lift weights,your muscles get bigger and you get stronger.A person who can't lift 20 pounds when he/she starts exercising can get strong enough to lift 100 pounds after working out for a long time.That's because the muscles become larger and stronger with exercise.And when you stop exercising,the muscles shrink and you get weaker.That's why people say "Use it or lose it!" But most people don't know that when they practice and learn new things,parts of their brain change and get larger a lot like muscles do when they exercise. Inside the cortex of the brain are billions of tiny nerve cells,called neurons. The nerve cells have branches connecting them to other cells in a complicated network. Communication between these brain cells is what allows us to think and solve problems. When you learn new things,these tiny connections in the brain actually multiply and get stronger.The more you challenge your mind to learn,the more your brain cells grow.Then,things that you once found very hard or even impossible to do--like speaking a foreign language or doing algebra --seem to become easy after learning them for a period of time.The result is a stronger,smarter brain. Scientists started thinking that the human brain could develop and change when they studied animals'brains.They found out that animals that lived in a challenging environment were more _ --they were better at solving problems and learning new things. Training muscles is compared to _ . A) using the brain B) connecting things in your brain C) lifting weights D) doing research about the brain
Ans: A
A senior United Nations Children's Fund(UNICEF) official on May 29 praised China for its remarkable achievements in children's welfare . A. H. M. Farook, UNICEF's operations area officer for prefix = st1 /ChinaandMongoliasaid thatChina"can be very satisfied to tell the whole world what can be done with limited resources to help its children to grow healthily and happily." China's child population makes up one-fifth of the world's total. "The reason behind the tremendous achievement is China's long tradition of caring for children both at home and in society," he said. "What's more is that Chinese people have always given special attention to children who are in special need." The UN official made the remarks when addressing a group of 50 children and staff from the Beijing Children's Welfare Home at the Shangri-la Hotel, Beijing. The hotel invited the orphans to share snacks , sing, dance and play games at a park inside the hotel for a "Share the Sunshine" party, as a prelude to celebrations to mark the Children's Day. The Beijingchildren's Welfare Home, set up soon after New China was founded in 1949, has at present more than 400 children. A leading official of the welfare institution said that the children live a happy life and that the agency spends 400--500 yuana month for an average orphan. An average Chinese workers earned 440yuana month during the first quarter this year. Gu Xiaojin, deputy secretary-general of the China Youth Development Foundation(CYDF), said people from all walks of life have contributed to the welfare of the Chinese children. She said that CYDF set up the Project Hope in 1989, which calls on people across the country to donate money to help poor children to continue their schooling. By the end of last year, she said, CYDF had collected nearly 700 million yuanin donations, which has helped the establishment of 2, 074 Hope primary schools and enabled more than 1. 25 million dropouts to return to school classrooms. Three "Hope Stars" also attended the... We can infer from the text that _ . A) Every Chinese child has its own special need, so we should pay special attention to each. B) All the children in the poverty-stricken regions of Chinaare too poor to go to school. C) Ever since liberation. the Chinese Communist Party has been concerned about the growth of the younger generation. D) With the help of UNICEF officials, there are no more dropouts in China.
C