Read the article and select the best answer. Article: Once many years ago, I pulled a family out of a burning car somewhere in Wyoming. Last week I received a telephone call from a woman who could not stop crying as she told me that one of my stories had saved her son from committing suicide. In closing she called me a hero. That got me thinking about what a hero is. Was I a hero because I pulled a family from a burning car? If so, how could I be a hero just because I wrote a story that saved someone's life? Today I decided to look up the word "hero" in the dictionary to see exactly what it meant. It read "a person who does. something brave". As I read on, it also said "a person who is good and noble ". That statement impressed me more than the part about being brave. So I thought about something very important. Say I was walking into the local Wal-Mart Store and I happened to open, and hold the door for someone as a _ . As they passed me by, I say, "How are you today?" Most of the time that would be no big deal, but this time let's say it was for someone who was deeply depressed and near the end of the rope. That may have very well been the only kindness or courtesy shown to them in a very long time. Having been near "the end of my rope", after my marriage of twenty years ended, I was in such a condition. I was within hours trying to get enough courage to end the pain and misery. When I returned home, someone had sent me a card in the mail which told me how much they would appreciate me as a friend. That wonderful card probably saved my life. That person, without even knowing it, saved a life and became a hero. Gee, who would have ever thought that anyone can become a hero, and possibly save a life just by being kind and courteous to others? The best part of all is that becoming a hero is free to all who wish to wear such an honor. Question: According to this passage, which of the following can be considered as the behavior of a hero? Options: A: Holding a door open for someone. B: Sending someone a wonderful card. C: Keeping writing stories for children. D: Being kind to someone who has a hard time.
D

(Question)
Read the article and select the best answer. Article: Elderly women who eat foods higher in potassium are less likely to have strokes and die than women who eat less potassium-rich foods, according to new research in the American Heart Association. "Previous studies have shown that potassium consumption may lower blood pressure. But whether potassium intake could prevent stroke or death wasn't clear," said Smoller, professor of the department of population health at Albert Einstein College of Medicine, Bronx, NY. Researchers studied 90,137 women, aged from 50 to 79 for an average 11 years. They looked at how much potassium the women consumed, as well as if they had strokes, including ischemic strokes , or died during the study period. Women in the study were stroke-free at the start and their average dietary potassium intake was 2,611 mg/day. Results of this study are based on potassium from food, not supplements. The researchers found: Women who ate the most potassium were 12 percent less likely to suffer stroke in general and 16 percent less likely to suffer an ischemic stroke than women who ate the least. Women who ate the most potassium were 10 percent less likely to die than those who ate the least. Among women who did not have high blood pressure, those who ate the most potassium had a 27 percent lower ischemic stroke risk and 21 perc ent reduced risk for all stroke types, compared to women who ate the least potassium in their daily diets. Among women with high blood pressure, those who ate the most potassium had a lower risk of death, but potassium intake did not lower their stroke risk. "Our findings suggest that women need to eat more p otassium-rich foods. You won't find high potassium in junk food. Some foods rich in potassium include white and sweet potatoes, bananas and white beans." The U.S. Department of Agriculture recommends that women eat at least 4,700 mg of potassium daily. "Only 2.8 percent of women in our study met or went beyond this level. The World Health Organization's daily potassium recommendation for women is lower, at 3,510... Question: The benefits of potassium intake to elderly women do not include _ . Options: A: preventing strokes B: reducing heart attacks C: cutting down death risks D: lowering blood pressure
(Answer)
B

Read the article and select the best answer. Article: A robot is a computer-controlled machine that is programmed to move and handle objects. Robots are able to perform repetitive tasks more quickly, cheaply, and accurately than humans. In 1995, about 700,000 robots were used-including over 500,000 in Japan, about 120,000 in Western Europe, and about 60,000 in the United States-all in the industrialized world. Many robots applications are designed for tasks that are either dangerous or unpleasant for human beings. Now, robotic technology can be used in more and more fields. Experts say in the future robots will be able to make new highways, constructsteel frameworks of buildings, clean sewage , and such physical work. Besides, another possibility is the development of robotic technology in medical surgery operations. Perhaps the greatest changes in future robots will improve from their increasing ability to reason. The field of artificial intelligence is moving rapidly from university labs to practical application in industry, and machines of a new kind of robots are being developed, _ can perform something involved in the process of understanding and planning, such as the management of a battlefield. Even the control of a large factory will be performed by intelligent computers. And there might be a possibility that these computers can design and make robots of their own. Is there anything dangerous involved in this artificial intelligence progress then? Robot technology has been making people nervous ever since it was invented. Is it unreasonable to worry that robots will someday become too clever? Is it impossible that these human-like robots will start to think and plan for themselves? Will robots take over the world and force humans to give them energy to survive? Question: In 1995, about 700,000 robots were working in _ . Options: A: Japan B: the United States C: Western Europe D: the industrialized world
D