【文章內(nèi)容簡(jiǎn)介】 yside D. areas near a town or a city47. Why do people move to live in cities or towns?A. Because they can live more fortably there.B. Because they prefer noisy life to peaceful life.C. They do so mainly to find work.D. Because they are sure of having a better life there.48. In a residential area you can see _____.A. rows of housesB. many offices and factoriesC. a lot of factories and farmsD. many houses with offices and factories49. In the United States, many people work in the center of a big city ____.A. while live on the far away edge of the cityB. and live thereC. but live in another cityD. but live far away out of the city50. We can infer that this movement from country areas to urban areas _____.A. has been going on for more than 2,000 yearsB. will continue in the futureC. may not continue in the futureD. is sure to stop（B）If you went to Australia, you would have to visit the famous Great Barrier Reef(大堡礁). One of Australia’s biggest tourist attractions, it is also home to great numbers of wildlife. There are 1,500 kinds of fish, 350 kinds of corals(珊瑚) and 30 kinds of sea animals. However, in recent years, the reef has e under threat from record high temperatures, pollution and overfishing. To save one of the world’s greatest natural wonders, Australia plans to ban fishing from onethird of the reef, according to a government announcement on June 2. Visitors are often surprised to learn that only a small part of the underwater attraction is now protected – just 5 per cent. Australia’s environment minister David Kemp said the new plans would increase protected areas to over 30 per cent of the 2,000 km reef. “The Great Barrier Reef is suffering very considerable pressures at the moment from increasing usage by tourists, by fishers, by the local people,” Kemp said. “It is very important that we give the reef proper protection for the future. It is Australia’s greatest natural icon(象征物).” The Great Barrier Reef lies off northeast Australia’s Queensland state. It brings about billion Australia dollars ( billion yuan) to the country each year through tourism and fishing. Kemp said the plan was expected to be put into action later this year. By then, it would create the world’s largest system of protected ocean areas. Companies who are caught breaking the rules will have to pay up to Australian dollars and individual(個(gè)人的) people may have to pay 220,000 Australia dollars.51. What can the visitors see in the Great Barrier Reef?A. Different kinds of fish. B. Different kinds of corals.C. Different kinds of sea animals. D. Different kinds of wildlife. 52. All the following made Australia begin to establish fishing ban except ____.A. high temperatureB. pollutionC. overfishingD. the death of living things53. How many protected areas will there be after the new plans carries out?A. About 500 km B. About 600 kmC. About 2,000 km D. About 800 km 54. If a person was caught breaking the rules, how much money would he be fined?A. million Australia dollars B. billion Australia dollarsC. 220,000 Australia dollars D. billion Australia dollars55. Which description of the Great Barrier Reef is NOT true according to the passage?A. When the new plan is carried out, not only the fish, but also corals and sea animals will be protected.B. The Great Barrier Reef was protected formerly, but the measures were far from enough.C. The Great Barrier Reef lies off northeast Australia’s Queensland state.D. The new plan would be put into action from the date when it was announced.（C）When I was in Scotland last year, I visited a special hydroelectric power station. It is inside a mountain. It rains a lot in the mountains of Scotland and there are huge lakes high up. The water falls down through large pipes to a generator() in the power station. The energy of the moving water turns the generator and this produces electricity. A big transformer then increases the number of volts to over 400,000. The electricity goes through cables() to different parts of Scotland, England and Wales. The inside of the power station was very clean because it doesn’t burn coal or gas. It was also very quiet. I was very surprised. It was just like being in a hospital, really. I think hydroelectric power stations are much safer than nuclear power stations. They are also