Question: Read the article and select the best answer. Article: The health of millions could be at risk because medicinal plants are being used up.These plants are used to make traditional medicine,including drugs to fight cancer."The loss of medicinal plants is a quiet disaster,"says Sara Oldfield,secretary general of the NGO Botanic Gardens Conservation International. Most people worldwide (including 80 percent of all Africans)rely on herbal medicines which are got mostly from wild plants.But some 15,000 of the 50,000 medicinal species are under threat of dying out,according to a report from the international conversation group Plantlife.Shortages have been reported in China,India,Kenya,Nepal,Tanzania and Uganda. Overharvesting does the most harm,though pollution and competition from invasive species are both responsible."Businessmen generally harvest medicinal plants,not caring about sustain ability,"the Plantlife report says."Damage is serious partly because they have no idea of it,but it is mainly because such collection is unorganized." Medicinal trees at risk include the Himalayan yew and the African cherry,which are used to treat some cancers. The solution,says the report's author,Alan Hamilton,is to encourage local people to protect these plants.Ten projects studied by Plantlife in India,Pakistan,China,Nepal,Uganda and Kenya showed this method can succeed.In Uganda the project has kept a sustainable supply of lowcost cancer treatments,and in China a public run medicinal plant project has been created for the first time. "Improving health,earning an income and keeping cultural traditions are important in encouraging people to protect medicinal plants,"says Hamilton."You have to pay attention to what people are interested in." Ghillean Prance,the former director of the Royal Botanic Gardens at Kew in London,agrees that medicinal plants are in need of protection. "Not nearly enough is being done,"he told New Scientist."We are destroying the very plants that are of most use to us." Question: What is the passage mainly about? Options: A: The function of medicinal plants. B: The importance of traditional medicine. C: More and more people rely on herbal medicines. D: The dangerous situation of medicinal plants and ways of protecting them.
Answer: D

Question: Read the article and select the best answer. Article: Raising a baby takes a lot of work, especially when that baby is a king penguin. Now, it looks like climate change will make life even harder for these birds. A new study suggests that warmer waters could make their numbers _ Most king penguins live on the Crozet Archipelago, a group of islands in the Indian Ocean, about 1,000 miles north of Antarctica. After the penguin chicks are born in November (which is summer in the Southern Hemisphere), both parents spend 4 months collecting fish to feed their children. When the fish move to deeper waters in March, the adults leave their chicks alone for months. They swim hundreds of miles south. There, near the Antarctic ice, they spend the winter eating seafood, such as squid, to add their own energy stores. In October, nearly a year after their chicks are born, the parents return to feed and finish raising them. Scientists from the French National Center for Scientific Research (CNRS) in prefix = st1 /Strasbourg,France, have been studying king penguins on the Crozet Archipelago for a decade. Starting in 1998, Yvon Le Maho and other researchers implanted electronic ID tags under the skin of hundreds of penguins. The tags have allowed Le Maho's team to know the details about them, such as how long they live, whether they return from their winter trips, and if their chicks manage to survive the winter. Ocean surface temperatures vary from year to year. And former research had shown that fewer squid, fish and other creatures grow when the water is warmer. Le Maho suspected that this drop in the food supply would make it harder for adult penguins to survive the tough times ahead. King penguins can live for up to 30 years. And for now, the population still appears healthy. But a warming trend could cause big trouble for a bird that depends on cold and ice. Question: What's the main idea of this passage? Options: A: Ocean warming may threaten king penguins B: The Crozet Archipelago is the world of king penguins C: Scientists support the protection of king penguins D: King penguins' habitat is in great danger
Answer: A

Question: Read the article and select the best answer. Article: As a boy,Tim was much influenced by books about the sea, but in fact by the age of fifteen he had decided to become a doctor rather than a sailor. His father was a dentist and as a result Tim had the opportunity of meeting many doctors either at home or elsewhere. When he was fourteen he was already hanging around the clinic of a local doctor where he was supposed to be helping to wrap up medicine bottles,but was actually trying to listen to the conversations taking place between the doctor and his patients in the next room. During the war Tim served in the Navy as a surgeon ."That was the happiest time of my life. I was dealing with very real suffering and on the whole making a success of it ."In California he taught the country people simple facts about medicine. He saw himself as a life-saver. He had proved his skills to himself and his ability to take decisions. Thus,while he was able to tell them what to do, he could feel he was serving them. After the war, he got married and chose to be a doctor in the countryside,working under an old doctor who was popular in the area,but who hated the sight of blood and believed that the secret of medicine was faith. This gave the younger man many opportunities to go on working as a life -saver. Question: Tim decided to become a doctor at fifteen mainly because Options: A: hisfather wanted him to be so B: his father was a surgeon himself C: e had read many books about medicine D: e had chances to meet many doctors through his father
Answer:
D