Question: Read the article and select the best answer. Article: Testing new drugs for safety and effectiveness is a costly process in the United States. It also can take:lot of time. Some scientists are now designing silicon computer chips that act like human organs. The scientists think they have found a way to make the process faster and more economical. The silicon computer chips are smaller than a child's hand. Each one has living cells that act and react like a human organ. The chips are being created as part of a program to test the safety of drug compounds. It is called the Tissue Chip for Drug Screening Program. It is a project of the US National Center for Advancing Tmnslational Sciences, or NCATS. Danilo Tagle is the center's Associate Director. He says a three-dimensional computer chip can be designed to act like a human lung. Some computer chips contain very small models of the human digestive system. They copy the real function or duties of the human stomach and intestine , moving when breaking down food. Drugs are added to the tiny organs for testing through instruments known as micro-tubes. Experiments with the tissue chips have produced more detailed information than tests using animal or cell models. NCATS just announced$17 million in grants to develop an entire human organ system over the next three years. Question: Why are scientists designing silicon computer chips acting like human organs? Options: A: To treat the patients whose body organs don't work well. B: To examine the health condition of human organs. C: To make testing new drugs faster and cheaper. D: .To further study the function of human organs.
Answer: C

Question: Read the article and select the best answer. Article: Do you find getting up in the morning so difficult that it's painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle. During the hours when you labour through your work, you may say that you're "hot". That's true. The time of day when you feel most energetic is when your cycle of body temperature is at its peak. For some people that peak comes during the forenoon. For others it comes in the afternoon or evening. No one has discovered why this is so, but it leads to such familiar monologues as "Get up , John ! You'll be late for work again !" The possible explanation to the trouble is that John is at his temperature-and-energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has. You can't change your energy cycle, but you can make your life fit it better. Habit can help. Dr. Kleitman believes. Maybe you're sleepy in the evening but feel you must stay up late anyway. Counteract your cycle to some extent by habitually staying up later than you want to . If your energy is low in the morning but you have an important job to do early in the day, rise before your usual hour. This won't change your cycle , but you'll get up steam and work better at your low point . Get off to a slow start which saves your energy. Get up with a yawn and stretch. Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before. Whenever possible, do routine work in the afternoon and save tasks requiring more energy for your sharper hours . Question: If you want to work better at your low point in the morning, you should _ . Options: A: change your energy cycle B: overcome your laziness C: get up early than usual D: go to bed earlier
Answer: C

Question: Read the article and select the best answer. Article: Two young artists named Sue and Joanna shared a studio apartment in the Greenwich Village area of New York, trying to realize their dreams. In November pneumonia killed many people. Unluckily, Joanna fell ill, too. One morning, a doctor examined Joanna and then spoke with Sue in another room. "She has decided that she has no chance. All we can do is give her a strong will to live." Holding back her tears, Sue went to Joanna's room. Joanna lay with her face toward the window, eyes wide open. She was counting something backward. "Twelve," she said, and a little later "eleven" until "five," almost together. Sue looked out of the window. What was there to count? There was a wall covered with an old ivy vine growing half way up it. The cold breath of autumn has stricken the leaves from the vine until it was almost bare. "Five what, dear?" asked Sue. "Leaves. On the ivy vine. When the last one falls I must go, too." "Oh, Don't be silly." Said Sue, "You will get better." "There goes another one. I want to see the last one fall before it gets dark." "Try to sleep." said Sue. "I must call Mr. Behrman up to be my model for my drawing of an old miner. Don't try to move until I come back." Old Behrman was a poor painter who lived in the building. For years he had always been planning to paint a work of art, but had never yet begun it. He earned a little money by serving as a model to artists who could not pay for a professional model. Sue found Behrman in his room. In one area was a blank canvas that had been waiting twenty-five years for the first line of paint. Sue told him about Joanna and how she feared that her friend would float away like a leaf. "What!" Old Behrman was angered at such an idea. "How silly! Just take me to her room." Joanna was sleeping when they went in. A cold rain was falling, mixed with snow. The next morning, Sue awoke after an hour's sleep. She found Joanna staring at the covered window. "Pull up the shade; I want to see." Sue obeyed. "It's the last leaf," said Joanna. "It will fall... Question: Why did Sue call the painting the masterpiece of Old Behrman? Options: A: Because Old Behrman promised that he would paint a work of art. B: Because Sue was so ashamed of her own poor performance in art. C: Because it was so perfect and saved Joann's life in the end. D: Because few painters could compare with Old Behrman in talent.
Answer:
C