阅读理解

　　Have you ever seen snow? Many people in the world have not seen．Some countries never have snow；some have only a little on the tops of very high mountains．In the north of England，there is quite a lot of snow every winter，but in the south of England，there is usually little．

　　When a student from a warm country comes to England in autumn for the first time，he feels cold at first．There are often dark clouds，grey sky and cold rain in England in autumn，and most students from warm countries do not like this．

　　But snow is different．Though it is cold，it is also beautiful．Perhaps，after several dark mornings，the student wakes up one day，and there is a lot of light in his room．He thinks“Is it so late?” and jumps out of bed．But no，it is not very late．He looks out of the window and there is the snow on the ground and on the houses and everywhere．The light of his room comes from clean，beautiful snow．

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阅读理解

　　There is not enough oil in the world now．As time goes by ,it becomes less and less ,so what are we going to do when it runs out? Perhaps we will go back to use horses ,carriages and bicycles．

　　In the Second World War ,some people didn＇t use gas made from petroleum(石油)in their cars．They made gas from wood and plants instead．The cars didn＇t go fast ,but they ran ,so this was better than nothing．However, in the future, we can＇t cut down all our trees to make gas; we need our trees for other things, too．

　　Besides different types of gas, we can also use electricity(电)to run our cars but first we must make the electricity! Some countries have coal and they make electricity with that, but we might not always have coal, either．Other countries have big ,strong rivers and they can use the power of water to turn turbines(涡轮机)and make electricity more easily and cheaply．

　　We are also able to get power from the ocean tides．We put turbines into the mouth of the river．Then the tide comes in ,the water turns the turbines and then it goes out ,it turns them again．

　　Which of these ways will be used to run our cars in the future?

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