Read the following article and select the best answer. Article: A purple tomato genetically engineered to contain nutrients more commonly seen in dark berries helped cancer in mice, British researchers said on Sunday. The finding, published in the journal Nature Biotechnology, the idea that plants can be genetically modified(changed) to make people healthier. Cancer-prone mice fed the modified fruit lived significantly longer than animals fed a standard diet with and without regular tomatoes, Cathie Martin and colleagues at the government-funded John Innes Center in Britain reported. "The effect was much bigger than we had expected." said Martin, a plant biologist. The study focused on anthocyanins,a type of antioxidant found in berries such as blackberries and blackcurrants that have been shown to lower risk of cancer, heart diseases and some neurological diseases. While an easy way to improve health, many people don't eat enough of these fruits, the researchers said. Using genes from the snapdragon flower, the researchers discovered they could get the tomatoes to make anthocyanins---- turning the tomato purple in the process. Mice genetically engineered to develop cancer lived an average of 182 days when they were fed the purple tomatoes, compared to 142 days for animals on the standard diet. "It is greatly encouraging to believe that by changing diet, or specific components in the diet. You can improve health in animals and possibly humans." Martin said in a telephone interview. The researchers warned that trials in humans are a long way off and the next step is to investigate( look into) how the antioxidants actually affect the tumors to promote better health. But the findings do support the formal research suggesting that people can significantly improve their health by making simple changes to the daily diet, other researchers said. "It's exciting to see new techniques that could potentially make healthy foods even better for us." said Doctor Lara Bennett, science information office at Cancer Research UK. " But it is too early to say whether anthocyanins obtained... Question: According to Dr. Lara Bennett, the effects of anthocyanins through diet on human being _ - are not certain now. - have been proved - are very harmful - are hard to be tested
are not certain now.
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Read the following article and select the best answer. Article: Are the Super Girls super enough to make it into China's most authoritative dictionary? The editors of Cihai are working on a new edition, and they say they haven't decided yet. "The editing preparation of the 2009 edition of the dictionary has just started," an editor of Cihaisaid. "Which new words will be added, and which old ones will be deleted, remains unknown." The TV programme that brought the Super Girls into the public eye has certainly had an influence on Chinese society since its _ in 2004. The editor said the new edition will include terms such as "Shenzhou VI," the name of China's second manned spacecraft, and Ba Jin, a late master of contemporary Chinese literature. The argument began earlier this week, when media reported that Cihai, as a dictionary that prides itself on its educational and historical value, would not include terms such as "Super Girl." An official said that some online words were popular, but Cihaipreferred words of both popularity and stability and those that can withstand the test of time and usage. A reporter from China Economic News said: "We all agree on the great contribution of Ba Jin, but who can look down on the social influence of the Super Girl?" A Professor told China Daily: "Of course 'Super Girls' should be edited intoCihai. If some strange words can be in there, why not 'Super Girls'? Even though it may die out after a few years just as, say, 'Shenzhou VI' will be replaced by 'Shenzhou IX' one day." Cihai records new words reflecting the latest developments in the social and natural sciences, including biology, electronics, computer science and economics. Question: What can we know about Cihai from the passage? - It will be edited and published in 2009. - Most of the words in Cihai withstand the test of time and usage. - It records all new words at home and abroad. - It is revised and edited every year.
Most of the words in Cihai withstand the test of time and usage.
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Read the following article and select the best answer. Article: Greece is one of the most beautiful countries of the world. Millions of tourists visit this place every year. In Greece the bus is the most convenient and preferred means of travelling. There are intercity buses operated by KTEL that interconnect various cities of Greece, and there are international buses operated by OSE that connect Greece to other European cities. Every tourist must visit Greece at least once in life. This country is really a vacation heaven. It is the perfect blend of history and art with adventure and romance. You can dive into deep blue waters, climb up the mountains or enjoy ancient architecture and history. Buses in Greece are cheap and very comfortable. All bus stations display schedules of buses on every route. Conductors and drivers are very polite and helpful. Travelers never face any trouble locating and boarding buses to their destinations. Tourists can always ask the conductor to inform them about their stop, so that they can get down at the right stop. Everyone here is more than happy to help tourists. Athens, the capital of Greece, has three bus terminals. Buses to different part of Greece leave from different terminals. Air-conditioned express buses also operated between major cities. They are faster and more comfortable than other buses. Tourists can choose guided Greece bus tour. These tours are the perfect way of exploring this great country. Buses in Greece are also a great way of saving _ on the journey. The long-distance bus system is very cheap. Buses save a lot of money to cover long distances, cheaper than taxis or cars. They are also the best means of interacting with local people. You can sit next to a native Greece and get some information about the place. Question: The company KTEL offers bus services _ . - to different cities in Greece - from Greece to other countries - to tourist attractions in Greece - from Greece to its bordering countries
to different cities in Greece
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Read the following article and select the best answer. Article: For a commuter rushito catch a train, a minute can mean the difference between dinner with the family and foods in the microwave. What most passengers don't realize is that their minute is already there. Every commuter train that departs from New York Cityabout 900 a d leaves a minute later than scheduled. If the timetable says 8:14, the train will actually leave at 8:15.In other words, if you think you have only a minute to get that trainwell, relax. You have two. The courtesy minute , in place for decades and published only in private timetables for employees, is meant for those who need the extra time to get off the platform and onto the train. "If everyone knows they get an extra minute, they're going to waste time doing unimportant things," explained Marjorie Anders, a spokeswoman for the Metro-North Railroad. Told of this article, Ms. Anders laughed. "Don't blow our cover!"she said. Entirely hidden from the riding public, the secret minute is an odd departure from the railroad culture of down-to-the-second accuracy. The railroad industry helped invent the concept* of standard time, and time zones were established in the United States in the 1880s, 35 years before they were written into law. And most commuters know their train by the accurate minute it departs. The trains quickly make up the minute:at all other stops, the public timetable is carried out. The courtesy minute does not exist at commuter railroads in Chicago, Los Angeles, Philadelphia, or San Francisco. But in New York, the secret minute dates back decades. "That's been done forever, from my knowledge," said Jack Swanberg, 70, an unofficial historian of Metro-North. "I was the trainmaster starting in 1970 and I'm sure it's been the case since 1870 for all I know." Question: The passage mainly talks about _ * - the railroads in the US - .the secret of New York minute - .the mistake of the railroad industry - the history of New York commuter trains
.the secret of New York minute
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