Read the article and select the best answer. Article: Researchers are placing robotic dogs in the homes of lonely old people to determine whether they can improve the quality of life for humans. Alan Beck, an expert in human-animal relationship, and Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of robotic dogs on old people's depression, physical activity, and life satisfaction. "No one will argue that an older person is better off being more active, challenged, or stimulated ," Edwards points out. "The problem is how we promote (......) that, especially for those without friends or help. A robotic dog could be a solution." In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live alone. Before placing AIBO in the home, researchers will collect baseline data for six weeks. These old people will keep a diary to note their feelings and activity before and after AIBO. Then, the researchers will review the data to determine if it has inspired any changes in the life of its owner. "I talk to him all the time, and he responds to my voice," says a seventy-year-old lady. "When I'm watching TV, he'll stay in my arms until he wants down. He has a mind of his own." The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs, especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or playing with it. A robotic dog removes exercise and feeding concerns. "At the beginning, it was believed that no one would relate to the robotic dog, because it was metal and not furry, " Beck says. "But it's amazing how quickly we have given up that belief." "Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will record their masters' blood pressure, oxygen levels, or heart rhythms. AIBOs may even one day have games that can help stimulate older people's minds. " Question: The purpose of Beck and Edwards' study is to _ . Options: A: understand human-animal relationship B: make lonely old people's life better C: find the causes of old people's loneliness D: promote the animal-assisted research
B

Read the article and select the best answer. Article: Do you feel lucky? You probably don't. You may think you've got where you are today through willpower and hard work. We tend to overlook luck's role,and this seems to get worse the richer we get; surveys show that the wealthiest are least likely to owe their fortunes to good fortune. Many such people oppose taxation and government spending: why should others get a handout if they don't need one? More often than not,they vote against the very policies that helped them get lucky to begin with. In a recent Atlantic essay,Robert Frank,an economist who has studied attitudes to chance,quoted EB White: "Luck is not something you can mention in the presence of self-made men." However, if we see this just as a problem of the super-rich people,we may let the rest of us off too easily. Anyone living in a highly developed economy in 2016 is already the one who benefits from luck--for example,not living in the modern-day Central African Republic, where few people can live a long life. In fact,we are lucky to have been born human. You might have been a battery hen,or a mayfly with only one day to live. Our blindness to such truths isn't only because we're self-absorbed but also we attach more significance to things that are easier to call to mind. It's not hard to recall countless times when you put in the effort to succeed: struggling through university finals,preparing for job interviews,tolerating a long-distance travel to work. On the other hand,it's rather difficult to realize you're privileged--like not being born in a war zone,or before antibiotics ,and so forth. Question: We can learn from the passage that_. Options: A: few people in Africa are lucky B: each of us is actually privileged C: people value the importance of luck D: people succeed because of luck
B

Read the article and select the best answer. Article: The World Health Organization says there has been a sharp increase in the number of over-weight children in developing countries. In African countries, the WHO says the number of over-weight or obese children is twice as high as it was 20 years ago. Around the world, about 43 million children under the age of five were overweight in 2013. Overweight and obese children are more likely to become overweight and obese adults. The condition can _ serious health problems like heart diseases. Francesco Branca is the director of the WHO Department of Nutrition for Health and Development. He says urban lifestyle makes people eat processed food more often ,which has a high sugar ,fat and salt content. He also says people are gaining weight because of their lack of activities. They travel in cars or other vehicles more than on foot. The WHO experts say to lower obesity rates is especially complex in countries that also deal with high rates of infectious diseases. The WHO has some basic solutions for individuals and countries. The organization says you should lower your intake of fat, sugar, salt and processed food and eat more fruits,' vegetables and increase physical activity. The WHO says these actions are especially important for children. And WHO expert Branca says mothers should breastfeed their babies for at least the first six months of life, if possible. More importantly, governments should consider providing vitamins for children and educational campaigns about problems linked to obesity would also help. In his view, government policies should deal with how food is marketed to children and food producers must balance quality and taste with the dangers of sugar, fat and salt. "Reducing the number of overweight children will not be easy. The goal is difficult to meet even in wealthy countries. " he adds. Question: According to Branca , people are becoming overweight because of their changes in _ Options: A: lifestyles B: transportation C: physical condition D: school educational .
A

Read the article and select the best answer. Article: Su Hua is studying at Cambridge, UK. She has bought a bicycle and is worried about security. Her friend, Kate, found this article and sent it to her. www.zxxk.com Introduction A lot of crime is against bicycles. About 150,000 bicycles are stolen every year and most are never found. You can prevent this happening by following a few careful steps. Basic Security Do not leave your bicycle in out-of-the-way places. Always lock your bicycle when you leave. Secure it to lampposts or trees. Take off smaller parts and take them with you, for example lights and saddles . Locks Get a good lock. There are many different types in the shop. Buy one that has been tested against attack. Ask for a recommendation from a bike shop. Marking Security marking your bike can act as a deterrent to a thief. It can also help the police find your bicycle. It should be clearly written and include your postcode and your house or flat number. This will provide a simple way to identify your bicycle. Registration There are a number of companies who will mark your bicycle for you. They will then put your registration number and personal details on their computer database. Then if your bicycle is found it will be easy to contact you. Finally Keep a record of the bicycle yourself: its make, model and registration number. You can even take a photograph of it, this will prove the bicycle belongs to you. Question: The main purpose of this article is _ . Options: A: to tell you what to do if your bicycle is stolen B: to suggest ways of keeping your bicycle safe C: to give you advice on where to buy a good lock D: to say why you shouldn't keep your bicycle in a quiet place
B