阅读理解

　　Strange things happen when you travel, because the earth is divided into twenty-four zones(分……区)．The time difference between two zones is one hour．You can have days with more than twenty-four hours and days with fewer than twenty- four hours．You can have weeks with more than seven days and weeks with fewer than seven days．

　　If you make a five-trip(旅行)across the Atlantic Ocean(大西洋), your ship come into a different time zone every day．As you come into each zone, the time changes one hour．If you travel west, you set your watch back．If you travel east, you set it ahead(向前)．Each day of your trip has either twenty-five or twenty-three hours．

　　If you make a trip by ship across the Pacific Ocean(太平洋), you cross the International Date Line(国际日期变更线)．This is the point where a new day begins when you cross the line, you change one full day．If you travel east, today becomes yesterday, if you travel west it is tomorrow．

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阅读理解

　　Nowadays more and more people care about the exploiation(开采)of the natural resources, such as oil．Though there’re many kinds of resourees, with the fast inorease of population and the appeararice of many more factories, the more we use, the fewer there will be left for the future, Oil is getting less and less year after year．It’s said that oil can last for only 50 years．Natural gas perhaps will last about 38 years．

　　Oil can be used in many ways and it’s difficult to imagine what the modern world will be like without oil．But oil isn’t easy to find and get out of the earth．Men nust study the rochs．When they think the rocks in a certain place may have oil, a metal tower is built, A machine in the tower cuts a hole down into the groud．At the same time, a steel pipe(钢管)is pushed down to stop the sides from falling in and to keep out water．At last if the men are right, usually the oil rushes up the sides with great force(力量)by the pressure(压力)of the gas in the top of the rock, and it rushes high into the air．If the oil catches a light, there will be a terrible fire．So a kind of cover is fixed on the top of the picpe, and the oil can run out through taps(活塞)．

　　If we make a well near the middle of the oil field, we can also get gas．Such gas is sent through pipes to towns far away and used in houses and factories like coal gas．

　　Today oil is under pressure as never before．The price of oil keeps rising all the time．In many countries, the governments encourage people to save oil as much as possible．

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完型填空

　　A thousand years age Hong Kong was covered by a thick forest．As more and more people came to 　　1　　 in Hong Kong, these trees were cut down and burnt．Now there is 　　2 　　 forest left, though there are still some small areas covered in trees．We call these woods．

　　Elephants, tigers and many 　　3　　 animals were living in the thick forest．When people came to live in Hong Kong, the 　　4　　 began to die out．Early farmers grew rice and 　　5　　 pigs and chickens in the valleys．They cut down the trees and burnt them．They needed 　　6　　 to keep themselves warm in winter, to cook their food and to keep away the dangerous animals．Elephants quickly disappeared because there was not enough food for them．　　7　　 did most of the wolves and tigers．Monkeys and many other animals soon 　　8　　 in the same way．

　　You might think that there are no longer any animals in Hong Kong 　　9　　 in the zoos．But there are still about 36 different animals 　　10　　 there．One of the most interesting of Hong Kong's animals is the barking deer．These are beautiful little animals 　　11　　 a rich brown coat and a white patch(补钉)under the tail．They look like deer but they are much smaller．They are less than two feel 　　12　　．They make a noise rather like a dog 　　13　　．In Hong Kong the barking deer has only a real enemy(敌人)――　　14　　．People hunt these little animals though it is illegal(违法的)．There are now not many barking deer left．So it is important 　　15　　 people to protect wild animals．

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