A healthy amount of sunshine may be the secret to staying young. British scientists have discovered. Vitamin D is produced naturally by the skin in response to(...) sunlight and may help to slow the ageing process and protect against heart disease, according to the study. Researchers from King's College London studied 2,160 women aged between 18 and 79, looking at their telomeres--- a biological marker of ageing found in DNA. As people get older, their telomeres get shorter and they become more susceptible  to certain illnesses. But the study found women with high levels of vitamin D had comparatively longer telomeres--- a sign of being biologically younger and healthier. The study suggests vitamin D may help to slow down the ageing process of DNA, and therefore the ageing process as a whole. Lead researcher Dr Brent Richards said, "These results are exciting because they show for the first time that people who have higher levels of vitamin D may age more slowly than people with lower levels of vitamin D." This could help to explain how vitamin D has a protective effect on many ageing related diseases, such as heart disease and cancer." Professor Tim Spector, a co-author of the report, added, "Although it might sound absurd  , it's possible that the same sunshine which may increase our risk of skin cancer may also have a healthy effect on the general ageing process." Vitamin D made by the action of sunlight on the skin accounts for 90 percent of the body's supply, but lower levels can also be got through food such as fish, eggs and breakfast cereals . Other studies have suggested the vitamin plays a key role in protecting against cancer and heart disease. What is the best title of the passage? A) Secret of Staying Young B) Vitamin D Helps Slow Ageing C) Sunlight and Vitamin D D) Sunlight and Health
B


(Question)
The smart phones that can take self-portraits or selfies have set us free. We can now document every moment of our life and instantly share it with the world through the Internet. However, some believe that it's also causing people to take unnecessary risks that sometimes prove to be deadly! According to recent reports, the desire to take a breathtaking selfie has killed 12 people. Though that may not seem like a lot, it's 50% more than the death from shark attacks. While the issues have been known for a while, they came to a head  on September 21st, following the accidental death of Hideto Ueda at the Taj Mahal. It turns out that the 66-year-old Japanese and his companion were trying to take a selfie with the Royal Gate as the background when they fell down some stairs. While the friend escaped with a broken leg, Ueda was not as fortunate. He suffered a head injury and died soon after. Other fatal accidents include a 21-year-old Russian woman who fell off a bridge while trying to capture an exciting self-portrait. Three Indian students suffered a similar fate after they were run over by a train while taking a selfie on the railway tracks. The rising number of injuries is forcing officials to take measures. Russia has begun a nationwide awareness program to make its young citizens aware of the dangers of this safe hobby. The campaign's slogan is:"Even a million 'likes' on social media are not worth your life and well-being." Though no other country has followed their lead, many are banning the selfie stick! In the last few months many museums, and theme parks including Disney, have banned its use. JR West became the first institution worldwide to ban the sticks both inside Japan's bullet trains as well as out on the railway platforms. While these measures may help reduce the incidents, the only way to stop selfie-related injuries and deaths is to take responsibility -- not just for themselves but their friends. So next time you decide to take a selfie that appears a little risky, be sure to stop and ask... What is the author's attitude towards taking selfies according to the passage? A) Indifferent. B) Optimistic. C) Critical. D) Cautious.
(Answer)
D


Ques: Although the US is so big and its people have so many different racial backgrounds, it is in some ways less varied than Europe.The English language is used almost everywhere in its American form.The American way of speaking has developed independently of English and is on the whole closer to what can be heard in Ireland. Another example of uniformity is in habits and ways of living.From Boston to Los Angeles it is as far as from France to Central Asia, and from east to west there are five time zones; but everywhere people get up and go to bed at about the same time, eat the same kind of food, buy in the same kind of shops, work and rest at the same time of the day and have the same pattern of holidays. _ there is less difference between rich people and ordinary people or between town and country, than in any single European nation. Although far more food is produced than the present population needs, America is actually an urban society.Less than a tenth of the people are engaged in   agriculture and most of the rest live in or around towns large and small.Here the traditional picture is changing; most Americans do not live in small towns any more.Half the population now live in some thirty metropolitan   areas. The fact that the United States has always been a single economic unit has contributed to uniformity.Modern industry favors large organization, and it is no accident that the world's biggest commercial firms are American.The people can choose between the products of competing manufacturers   but the products are all much alike. In describing the uniformity in the U.S.the author does not mention that the American people  _  . A) get up and go to work at the same time B) spend their holidays in the same pattern C) buy and eat the same kind of food D) have more or less the same income
Ans: D


Question: Society is the term to describe human beings gathered together by social networks tand power networks. It does not refer to everything everybody thinks or does, but, only refer to those things that everybody depends upon ,for example, public services, governments, and all kinds of communities. A society must keep even the poorest and weakest members willing to help even the richest and strongest, so it is very concerned with citizenship, rights, ethics ( )and time limits. These are basic ways to achieve fairness. If they break down badly, people will think the society is unfair and start taking things from each other, refusing to help each other, or seeing those who have more as cheats. When this happens, it is time for the society to break down or fail. Theft, violence and war are things that can make a society break down. A new society may be formed out of the collapse  of an old failed one when people of different kinds reach an agreement about fairness and are willing to live together in harmony again. To adapt to the society, people should make sure that their behavior can be supported by the society, that is to say, there must be some social rules on which citizens base what they do. However, some people take risks that the society will support them when they do whatever they intend to. For instance, they may refuse to obey the law, and count on their fellow society members to free them in a court of appeal, which harms the society. Therefore we need a social contract which sets out rules for the society. One kind of the social contract is a constitution  -which allows a jury or court to decide what is right or wrong according to the social rules. We know from the passage that   _ A) Social fairness is very important for a society to survive " B) there must be a war to end an old society and build a new one C) only the poorest are willing to help the richest in a society D) the poor people in a society are always cheated by those wealthy ones
Answer:
A