中山大学2017年大学英语三第4次作业

中山大学2017年上半年大学英语（三）第4次作业满分答案

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问题 1

得 20 分，满分 20 分

Most people want to work, but it has become more difficult in today’s world to find work for everybody. The economies of the world need to __[1]__ by 4% each year just to keep the old number of jobs for people. Often this is not possible, and so more people are losing jobs. Some people have no jobs now because new __[2]__ can do the work of many people in a shorter time. Also, machines do not ask for __[3]__ money and longer holidays. In all the countries of the world, machines are taking work from people, not only in factories but also on the __[4]__. One machine can often do the work of forty percent of

people. About 75,000 people are moving to the cities a day to look __[5]__ jobs, but only 70% of them can find jobs. 所选

Most people want to work, but it has become more difficult

答案： in today’s world to find work for everybody. The economies

of the world need to __C：grow__ by 4% each year just to keep the old number of jobs for people. Often this is not possible, and so more people are losing jobs. Some people have no jobs now because new __E：machines__ can do the work of many people in a shorter time. Also, machines do

not ask for __B：more__ money and longer holidays. In all the countries of the world, machines are taking work from people, not only in factories but also on the __D：farms__. One machine can often do the work of forty percent of people. About 75,000 people are moving to the cities a day to look __A：for__ jobs, but only 70% of them can find jobs.

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问题 2

得 20 分，满分 20 分

Fire can help people in many ways. Fire can heat water, [1] your house, give light and cook food. But fire can burn things too. Nobody knows [2] people began to use fire. One story from Australia tells about a man a very long time ago. He went up to the sun by a rope and brought fire down.

Today people know how to [3] a fire with matches. Children

sometimes like to play with them. But matches can be very dangerous. Fire kills people every year. So you must be careful about matches. You should also learn to [4] fires. Fires need oxygen. Without oxygen they die. There is oxygen in the air. Cover a fire with water, sand, or in an emergency, with your coat or a blanket. This keeps the air [5] a fire and kills it.

Be careful with fire, and it will help you. Be careless with fire, and it might hurt you. 所选

Fire can help people in many ways. Fire can heat water, B：

答案： warm your house, give light and cook food. But fire can

burn things too. Nobody knows C：how people began to use fire. One story from Australia tells about a man a very long time ago. He went up to the sun by a rope and brought fire down.

Today people know how to A：make a fire with matches. Children sometimes like to play with them. But matches can be very dangerous.

Fire kills people every year. So you must be careful about matches. You should also learn to D：put out fires. Fires need oxygen. Without oxygen they die. There is oxygen in the air. Cover a fire with water, sand, or in an emergency, with your coat or a blanket. This keeps the air E：from a fire and kills it.

Be careful with fire, and it will help you. Be careless with fire, and it might hurt you.

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问题 3

得 20 分，满分 20 分

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