任务型阅读 The sea has always interested man．From it he can get food, minerals, and treasure． 1 But he could not go far beneath its surface． 2 However, he is not a fish．He must breathe air, so he can' 题目和参考答案——青夏教育精英家教网—

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任务型阅读

　　The sea has always interested man．From it he can get food, minerals, and treasure．　　1　　 But he could not go far beneath its surface．

　　　　2　　 However, he is not a fish．He must breathe air, so he can't stay under the water's surface for any length of time．To explore deep water, man faces even more dangers and problems．

　　A diver who wants to stay under water for more than a few minutes must breathe air or a special mixture of gases．　　3　　 He can carry a tank of air on his back and breathe through a nose and a mouthpiece．Water weighs 800 times as much as air．Tons of water pushes against a diver deep in the sea．　　4　　

　　When a diver is under great pressure, his blood takes in some of the gases he breathes．As he rises to surface, the water pressure becomes less．If the diver rises too quickly, the gases in his blood form bubbles(气泡)．The diver is then suffering from the bends(潜水夫病)．The bends can cause a diver to double up in pain．　　5　　

A．His body is under great pressure．

B．Scientists are trying to find more about the sea．

C．For thousands of years, he could sail on it．

D．They can even kill him．

E．He can wear a diving suit and have air pumped to him from above．

F．The water pressure can cause a diver to breathe with difficulty．

G．Man wants to explore deep into the sea．

答案：
解析：

C；G；E；A；D

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B．Exciting Holiday Camp：You can enjoy yourself climbing, sailing and swimming taught by trained adults in a camp near a lake．All meals are provided．The camp is open throughout June, July and August, and each session lasts for two weeks．It aims at boys and girls aged 9 to 14．

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E．Students'Working Holidays：A really cheap but healthy holiday．You can enjoy picking fruit in the heart of France．Accommodation(住宿)provided in farmhouses．All meals included．Free transportation is also provided．Why not write for further details?

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Tours last 2－3 weeks．

1．_________ Mike and Susan are university students．They want to take a holiday this summer, but they don't have much money．They are dreaming of going to France．

2．_________ Bill Smith is a businessman．He is tired and needs a rest, but he does not have much time for a holiday．He wants to get away from city life and stay somewhere near the sea．He is interested in cooking．

3．_________ Susan has three weeks to spend on holiday．She doesn't like sports, and she doesn't like relaxing on the beach either．She enjoys sightseeing and learning about foreign countries' history．

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　　In a fast changing world, people seldom see a device or equipment that lasts for a long time these days．There are always new inventions, different models, or upgrades cropping up one after the other and as consumers people highly anticipate the faster and better kind than what they already have．Therefore it is quite a surprise that a mini projector(投影仪)is still in use today not only in small scale businesses, schools, or homes but in big corporations and institutions as well．Sure it has a few additional features here and there but the main function is the same．

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