THURSDAY, July 9 (Health Day News) -- A new study that found that a lower calorie diet slowed the aging process in monkeys could be the best proof yet that restricted diets might do the same for humans. "The big question in aging research is, 'Will caloric restriction in species closely related to humans slow aging?'" said Richard Weindruch, senior author of a paper appearing in the July 10 issue of Science. This is the first clear demonstration that, in a primate species, we' re inducing a slowdown of the aging process -- showing increased survival, resistance to disease, less brain atrophy and less muscle loss. "This predicts humans would respond similarly," added Weindruch, professor of medicine at the University of Wisconsin and an investigator at the Veterans Hospital in Madison. Another expert noted that, despite some highly publicized studies in certain species, the link between restricted eating and longer lifespan has been far from proven. "The idea that dietary restriction extends lifespan in all species is not true. Many strains of rats and mice do not respond. In some strains, it' s actually deleterious," explained Felipe Sierra, director of the biology of aging program at the US National Institute on Aging (NIA), which supported the new study. "The fact that it doesn't work in some mice but it does seem to work in monkeys is surprising and it gives us hope." But there's a larger question: how to change humans' increasingly careless eating habits. "This finding doesn't give me hope that humans are going to go into dietary restriction," added Marianne Grant, a registered dietitian at Texas A&M Health Science Center Coastal Bend Health Education Center in Corpus Christi. The author most likely wrote this text to _ . A) compare the two experiments on rats and monkeys B) illustrate the data from the research C) call on people to pay attention to their daily diets D) introduce a lively debate to amuse the reader
C
(Question)
The industrial age has been the only period of human history in which most people's work has taken the form of jobs. The industrial age may now be coming to an end, and some of changes in work patterns which it brought may have to be reversed. This seems a discouraging thought. But, in fact, it could offer the prospect of a better future for work. Universal employment, as its history show, hasn't meant economic freedom. Employment became widespread when the enclosures of the 17th and 18th centuries made many people dependent on paid work by taking them away from the use of the land, and thus from the means to provide a living for themselves. Then the factory system destroyed the cottage industries and removed work from people's homes. Later, as transport improved, first by rail and then by road, people traveled longer distances to their place of employment until, eventually, many people's work lost all connection with their home lives and the places in which they lived. Meanwhile, employment put women at a disadvantage. In pre-industrial times, men and women had shared the productive work of the household and village community. Now it became customary for the husband to go out to paid employment, leaving the unpaid work of the home and family to his wife. Tax and benefit regulations still assume this norm today, and restrict more flexible sharing of work roles between sexes. It was not only women whose work status suffered. As employment became the dominant form of work, young people and old people were kept out -- a problem now, as more teenagers disappointed and annoyed at school and more retired people want to live active lives. All this may now have to change. The time has certainly come to switch some efforts and resources away from the utopian goal of creating jobs for all, to the urgent practical task of helping many people to manage without full-time jobs. From the passage we can learn that _ . A) jobs have existed since human came into being B) the industrial age brought jobs to everyone C) the industrial age brought the work patterns most people's work has taken D) in the future more and more people could get jobs as the industry is developing
(Answer)
C
Ques: Have you wondered about the amount of time we spend talking about food and been surprised? We are always asking questions such as "Have you ever eaten?" and "What did you have for lunch?"Yet, if you travel from one country to another, you might find that other nations think differently about food. People plan to think that what they eat is normal and what everyone else eats is strange. In most parts of Asia, for example, no meal is complete without rice but in England, rice is the exception and people prefer to eat potatoes, in the Middle East, bread accompanies every meal. Eating, like so many things we do, becomes a habit that is difficult to change. The Americans seem to like drinking lots of orange juice and coffee; the English prefer to drink tea four or five times a day; the Australians prefer to drink a lot of beer; the French, like wine every day. People in different countries also like eating different kinds of meat and even within countries, different regions will have different likes and dislikes, especially in large countries like China and the former Soviet Union. In Hong Kong and the south of China, some people enjoy eating snakes but in the north of China, most people refuse to eat them. The French think that horse meat is delicious but most English people are terrified at the thought of eating it. The New Zealanders eat a lot of lamb and mutton, but never goat. The Japanese say that they do not like eating lamb and mutton because of their smell, but that they really enjoy eating raw fish more than anything else. So it seems that there is often very little common sense about what is nicest to eat or drink in different parts of the world although we may talk on the subject of food for hours. However, as people everywhere enjoy eating what they have always eaten, there seems very little point in trying to change traditional eating habits. Bread is necessary in every meal in _ . A) the Middle East B) America C) England D) Asia
Ans: A
Ques:Daredevil climber Alain Robert, known as the French Spiderman, stood strong winds and rain to climb the world's tallest skyscraper, Taiper 101, Saturday. Robert, dressed in a red rain jacket, tights and climbing shoes, climbed up ropes hung down the side of the 101-storey, 1,667-foot office tower, reaching the top in around four hours. "It was a very big moment and I felt a lot of satisfaction though I was already so tired and nearly all of my muscles were painful. I felt completely eased," said Robert after taking the ride down in one of the tower's lifts, the world's fastest. Several hundred onlookers and shoppers gathered at the base of the tower watching and cheering Roberts progress through live pictures on a large television screen. At times he disappeared from view as clouds passed by the top of the tower surrounding the upper storeys. The 42-year-old Frenchman has covered scores of well-known structures around the world including the Empire State Building and the Eiffel Tower-without permission or any safety equipment or ropes. This time Robert was wearing a harness fastened to safety ropes for the entire climb. He used the ropes to pull himself up most of the way, using his hands and feet to climb up the walls for only short sections. He said the management had requested he wear the ropes and safety equipment, which had also become necessary due to the rain making the windows and frames very slippery. Robert said he would not carry his pity the next time. According to the text, we can infer that_. A) Alain Robert spent three hours climbing Taipei 101 B) Alain Robert chose a rainy day on purpose C) Alain Robert will climb Taipei 101 a second time D) Alain Robert got lots of help from onlookers

Ans:
C