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Read the article and select the best answer. Article: Robots are common in today's world. They manufacture cars, work in space, explore oceans, clean up oil spills and investigate dangerous environments. And now, scientists at the University of Manchester are using a robot as a laboratory partner. The researchers at the university created the robot in 2009 and named it Adam. Despite the name, Adam is not a humanoid robot. It is about the size of a car. Adam was built to do science and make discoveries. Ross King is the leader of the University of Manchester research team. He says the robot made a discovery about yeast , a kind of fungus  used in science as a model for human cells. "Adam hypothesized certain functions of genes within yeast and experimentally tested these hypothesizes and confirmed them. So it both hypothesized and confirmed new scientific knowledge." Adam's success as a scientist led to the creation of another robot scientist named Eve. Researchers developed Eve to design and test drugs for tropical and neglected diseases. These diseases kill and infect millions of people each year. Drug development is slow and costly. Experts say it can take more than 10 years and about $1 billion to discover and develop new medicines. Drug manufacturers are unlikely to get their investment money back. So the University of Manchester developed a low-cost test that shows whether or not a chemical is likely to be made into an effective medicine. Mr. King says that other drug testing methods were not very effective. "How it works conventionally is you use robotics as well and you have a large collection of possible drugs. You test every single compound. And you start at the beginning of your library and continue until the end, and stop. So it's not a very intelligent process. The robotics doesn't learn anything as it goes along, even if it's tested a million compounds, it still doesn't have any expectation of what will happen next when it tests a new compound." Mr. King says that Eve is different because the robot learns as it tests different compounds. He says the... Question: Scientists now are using a robot to  _  . Options: A: manufacture cars B: work in the laboratory C: work in space D: explore oceans
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B


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Read the article and select the best answer. Article: According to the Ministry of Health, 260 million Chinese people have chronic diseases, and 85 percent of all deaths in China are caused by such diseases. Among them, cardiovascular disease has bothered more people than any other kind of chronic disease. According to the WHO(World Health Organization), salt consumption , one of the key causes of high blood pressure that can lead to cardiovascular disease, is much higher in China than in other countries. Douglas Bettcher, the director of the WHO's Tobacco Free Initiative, says, "The average Chinese person consumes about 12 to 14 grams (of salt) per day, while the suggestion of the WHO is consumption of less than 5 grams per day. High salt consumption is a major cause of cardiovascular disease and high pressure in China. Changing the way that food is prepared could reduce salt consumption in China. Another major risk factor in China is smoking. Dr Michael O'Leary, a representative of the WHO, says, "We know already that one million deaths in China are related to smoking, This is an enormous number. It means that we are seeing nearly 3000 deaths a day in China, or two deaths every minute, related to smoking. According to O'Leary, about 26 percent of men who die from smoking-related diseases in China die before the age of 60. People who can still contribute a great deal, in other words, are dying too young. China has tried to ban smoking , but more efforts are needed. More than half of chronic diseases are preventable by changing lifestyles and reducing risks. The four key risk factors are: smoking, diets high in fats, salt and sugar, environments that prevent physical activities, and alcohol consumption. These are the areas on which efforts to make changes need to concentrate. Question: According to the WHO, how much salt should a Chinese person consume? Options: A: About 12 to 14 grams per day. B: Less than 5 grams per day. C: About 17 to 19 grams per day. D: About 7 to 9 grams per day.
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B


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Read the article and select the best answer. Article: What is time? Is it a thing to be saved or spent or wasted, like money? Or is it something we have no control over, like the weather? Is time the same all over the world? That's an easy question, you say. Wherever you go, a minute is 60 seconds, an hour is 60 minutes, a day is 24 hours, and so forth. Well, maybe. But in America, time is more than that. Americans see time as a valuable resource. Maybe that's why they are fond of the expression, "Time is money." To Americans, punctuality is a way of showing respect for other people's time. Being more than 10 minutes late to an appointment usually calls for an apology, and maybe an explanation. People who are running late often call ahead to let others know of the delay. Of course, the less formal the situation, the less important it is to be exactly on time. At informal get-togethers, for example, people often arrive as much as 30 minutes past the appointed time. But they usually don't try that at work. American lifestyles show how much people respect the time of others. When people plan an event, they often set the time days or weeks in advance. Once the time is fixed, it takes almost an emergency to change it. If people want to come to your house for a friendly visit, they will usually call first to make sure it is suitable. Only very close friends will just "drop by" unannounced. Also, people hesitate to call others late at night for fear they might be in bed. The time may vary, but most folks think twice about calling after 10:00 p.m. Question: Why are the Americans fond of the expression " Time is money."? Options: A: Because they can't control time. B: Because they is the same all over the world. C: Because they consider time as a thing like money. D: Because they consider time as a valuable resource.
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