How long you live has a lot to do with your environment and lifestyle, but exceptional long life may have even more to do with your genes. For the first time, researchers have discovered a genetic recipe that accurately predicts who may live to 100 and beyond. Analysis shows that 90% of the participants who lived to 100 had at least one of the signature genetic clusters . Dr. Thomas Perls at the Boston University School of Medicine said, "We realize this is a complex genetic puzzle. There is a long way for us to go to understand how the integration of these genes--not just with themselves but with environmental factors--is playing a role in this long life puzzle." Perls has studied many factors that contribute to long life, and he is the first to acknowledge that living longer isn't likely to be simply a matter of genes. His previous work has shown, for example, that among most elderly people who live into their 70s and 80s, about 70% can owe their long life to environmental factors such as not smoking; eating a healthy, low-fat, low-calorie diet; and remaining socially engaged and mentally active throughout life. It seems clear that those who live extremely long are benefiting from a special DNA. In fact, Perls believes that the older a person gets, the more likely it is that his or her genes are contributing to those extended years. Which of the following is FALSE according to the text? A) Remaining socially engaged helps a person to live long. B) A genetic recipe can accurately predict who may live to 100 and beyond. C) Perls is the first to think living longer is just a matter of genes. D) The older he gets, the more likely the genes contribute to his extended years.
C
YOU probably think you know about London's problems. The people are unfriendly, it's way too expensive, and the food is terrible - so why do so many tourists flock there? London was named the world's most popular city between July and September 2013. It _ other world-famous cities such as New York and Paris, welcoming 4.9 million visitors, according to the UK Office for National Statistics. Amazingly, this was an increase of almost 19.5 percent on 2012 - the year when the Olympics happened in summer. So can London's success be explained? Well, maybe. As the English writer Samuel Johnson once said, "when a man is tired of London, he is tired of life". London life is often crazy and expensive, but if you can think of something, you can probably do it there. Anywhere in the city, you can often look around a great museum such as the British Museum, watch a concert at a historic venue like the Royal Albert Hall, or dance the night away in a cool nightclub such as Fabric. And it's not just about culture - there are also world-famous sporting venues around the city. Many tourists like to watch soccer matches at stadiums such as Chelsea's Stamford Bridge, Arsenal's Emirates Stadium, or Tottenham's White Hart Lane. Tourists even came to watch British tennis player Andy Murray's famous victory at the Wimbledon tennis tournament in 2013. Yes, but what about the food? Well, even if you don't like British food - and if you've never had real fish and chips, or a summer pudding, then perhaps you should wait until you've tried them - there is plenty of great food from all over the world available in London's many restaurants. London, like many of its buildings, has a long history, but also never lacks a vibrant pulse . All over the city, history and modernity come together to make it an essential place for tourists to discover. What is the author's main purpose in writing the article? A) To show the effects of the 2012 London Olympics. B) To analyze why London appeals to tourists. C) To compare London with other world-famous cities. D) To talk about common problems in London.
B
Q: Montreal(Reuters)-Crossing the US-Canada border to go to church on a Sunday cost a US citizen $10,000for breaking Washington's strict new security rules. The expensive trip to church was a surprise for Richard Albert, who lives right on the Canadian border. Like the other half-dozen people of Township 15, crossing the border is a daily occurrence for Albert. The nearby Quebec village of St. Pamphile is where they shop, eat and go to church. There are many such situations in these areas along the largely unguarded 5,530-mile border between Canada and the US -- which in some cases actually runs down the middle of streets or through buildings. As a result, Albert says he did not expect any problems three weeks ago when he returned home to the US after attending church in Canada, as usual. The US customs station in this area is closed on Sundays, so he just drove around the locked gate, as he had done every weekend since the gate appeared last May, following a tightening of border security. Two days later, Albert was told to go to the customs office, where an officer told him he had been caught on camera crossing the border illegally. Ottawa has given out special passes to some 300 US citizens in that area so they can enter the country when Canadian customs stations are closed, but the US stopped a similar program last May. That forces the people to a 200-mile detour along hilly roads to get home through another border checkpoint. Albert has requested that the customs office change their decisions on the fine, but he has not attended a Sunday church since. "I feel like I'm living in a prison." he said. Which of the following statements is NOT true? A) The US citizens living on the American border can't enter Canada without special passes. B) The US stopped giving out special passes to the Canadians living in that area last May. C) The US customs officers told Albert the reason why the similar program had been stooped. D) It is obvious that Albert is not pleased with the decisions on the fine and in a bad mood.
A: C
(Q).
What if you arrived home to find a delicious hot meal waiting for you,prepared by your very own kitchen robot? It might sound like science fiction,but professors at the university of Tokyo have taken the first steps toward making that scenario a reality.The team recently introduced a humanoid kitchen robot that can pour tea and other drinks into cups and serve them to guests.When teatime is over,the robot can also wash the dishes and put them away. In California,another interesting kitchen robot has been developed.Called the Readybot,it can pick up objects and either store them in cabinets or put them in the trash.It also carries a separate floor-cleaning robot that can operate by itself.Unlike the Japanese robot,Readybot is not humanoid.Instead,it looks more like a large box with arms and wheels. Readybot was created by engineers and designers who established a club called the Readybot Challenge.They believe that in the future millions of robots will be needed in homes to perform ordinary household tasks.Readybot is just the first step in their plan to create a robot that can tackle jobs not only in kitchens but in other rooms of homes and in offices as well. Clearly there are technological hurdles to overcome before robots can cook a complete dinner,and there are also many safety concerns.Not everyone(especially parents)would be comfortable with the idea of robots in their house,manipulating hot pans and sharp knives.The European Commission recently funded a project to study these concerns. Where do the engineers and designers hope that Readybot will operate in the future? A) On spacecraft B) In automobiles C) On playgrounds D) At companies
(A).
D