Problem: Write a multi-choice question for the following article: Article: What would you think if someone suggested knocking down St Paul's Cathedral to widen the road? Or pulling down Big Ben to make way for a car park? It would be ridiculous, right? But when it comes to devastation of the natural world, we aren't so easily shocked. But we should be...or we'll be in a lot of trouble. _ . Ancient forests are destroyed. Wetlands are becoming dry. Woodland is disappearing, and all in the name of progress. This is bad in itself, but it's devastating for biodiversity. Biodiversity refers to the variety of plants, animals and other living things that are all interconnected. The ecological services provided by biodiversity are vital to everyday life. The air we breathe is a product of photosynthesis by green plants. Insects, worms and bacteria break down waste and make soils rich. And tiny organisms clean the water in rivers and sea. In fact, all life on the earth exists thanks to the benefits of biodiversity. More than 90 percent of the calories consumed by people worldwide are produced from 80 plant species. And 30 percent of medicines are developed from plants and animals. Maintaining a wide diversity of species in each ecosystem is necessary to preserve all living things. The loss of biodiversity could be devastating. "It is wrong to think that biodiversity can be reduced indefinitely without threatening humans," said Harvard University biologist Edward O. Wilson, known as the "father of biodiversity". He warned, "We are about to reach a critical point beyond which biodiversity loss will become irreversible ." But what can we do? The present problem is that the concept of biodiversity is so vague . People might care about giant pandas, but it is much harder to excite them about the fate of tiny sea creatures which are being boiled to death in the cooling systems of power stations along coastlines. TheGuardiannewspaper is trying to help. _ has launched the Biodiversity 100 campaign to try to convince governments around the world to take action to deal with the widespread...

A: Question: Edward O. Wilson thinks that _ .Options:A it doesn't matter to reduce biodiversityB people have done enough to preserve biodiversityC the situation of biodiversity is very seriousD biodiversity loss has become irreversibleAnswer:C

Problem: Write a multi-choice question for the following article: Article: After a confirmed rabies case in Parke County, Indiana, experts are urging caution if you find a bat in your home or office. "If you try to kill a bat, you are more likely to get bitten," said Joy O'Keefe, assistant professor of biology and director of Indiana State University's Centre for Bat Research, Outreach and Conservation. "Most bats people find in their houses are healthy and are not going to bite them and give them rabies." But they could be a federally endangered species, such as the Indiana Bat, which is found in this area. So if you spot a bat in your home or office, don't kill it or touch it with bare hands, O'Keefe said. Instead, put on a pair of heavy gloves and gently move it into a box or bucket. Once contained, the bat can be removed outside. "If it's a healthy bat, it'll fly away eventually," O'Keefe said. "If it doesn't move or seem to be healthy, you can take it to the health department to be tested." This is the time of year when bats move from their summer resting sites to their winter resting sites, O'Keefe said. "We get calls every year during the first month of school year from people finding bats in the university's buildings," said O'Keefe. Bats are a great help to people, as every night they can eat up to their entire body weight of insects. Bats, however, are facing great threats from epidemics , habitat destruction and other things. "The best way the average person can help bats is by understanding them and by telling other people how awesome bats are and what bats do for us," O' Keefe said. "Hopefully, _ will make people think that if there's a bat in their house, they should try to get it out but not kill it. That would be really positive for bats--to not have people be one of their major threats."

A: Question: We can infer that the text is probably written in _ .Options:A springB summerC autumnD winterAnswer:C

Problem: Write a multi-choice question for the following article: Article: A new study suggests that early exposure to germs strengthens the immune system. That means letting children get a little dirty might be good for their health later in life. The study involved laboratory mice. It found that adult mice raised in a germ-free environment were more likely to develop allergies, asthma and other autoimmune disorders. There are more than eighty disorders where cells that normally defend the body instead attack tissues and organs. Richard Blumberg,who led the study,is a professor at Harvard Medical School in Boston,Massachusetts. He says,in 1989,medical researchers who sought to explain these diseases, first discovered that the increasing use of antibacterial soaps and other products, especially early in life, could weaken immune systems. Now, Dr. Blumberg and his team have what is the first biological evidence to link early exposure to germs to stronger adult immune systems. They say this exposure could prevent the development of some autoimmune diseases. In the adult germ-free mice, they found that inflammation in the lungs and colon was caused by so-called killer T cells. These normally fight infection. But they became overactive and targeted healthy tissue--an autoimmune condition seen in asthma and a disease called ulcerative colitis . Dr. Blumberg says the mice raised in a normal environment did not have the same reaction. He says their immune systems had been "educated" by early exposure to germs. Rates of autoimmune disorders are rising worldwide, but mostly in wealthier, industrialized countries. According to Dr. Blumberg, it might be high time that people were warned to be more careful with the early use of antibiotics and the prescription from their doctors. Rob Dunn is a professor of ecology and evolutionary biology at North Carolina State University in Raleigh. He says the new study does not mean people should stop washing. "Wash your hands , but don't do it with antibacterial soap. Let your kids play in a reasonable amount of dirt and get outside and get...

A:
Question: To keep healthy in the future, children had better _ .Options:A play in a dirty environment once in a whileB live in a germ-free environmentC use plenty of antibacterial soapsD stay in under developed countriesAnswer:A