Last December's earthquakes in the Iranian city of Bam took a huge death toll—roughly 40，000 people--largely because of the collapse of thousands of mud—brick buildings.If a group of researchers in India are successful，the next earthquake might not be as destructive.British and Indian engineers are developing earthquake—proof housing using a cheap，universal material：bamboo.
　　Thev designed a model house built around waterproof bamboo-sheet roofing and bamboo-reinforced concrete walls.To test the structure，the engineers，sponsored by the U.K.Depart-ment of qnternational Development，took it to the Earthquake Engineering and Vibration Re-search Centre in Bangalore，which has a state.of-the-art earthquake simulator(模拟装置).The researchers shook the house with five successive 30-second pulses，being equal to 7.8 on the Richter(里氏)scale.The simulation was more than 10 times as violent as the Bam earth-quake.yet the house emerged undamaged.“We didn’t even crack the paint，”says engineer Paul Follett.of Britain’s Timber Research and Development Association.
　　By some estimates，more than a binion people already live in bamboo structures.The innovation lies in developing ways to exploit bamboo’S spring.Easily pre-built，fire resistant，and far lighter than steel，bamboo.based structures could be assembled in three weeks and last 50 vears.At five dollars a square foot，they would last roughly half as much as brick-and-block constructions.Follett says the project will follow an“open source”model：“Whatever is developed is freely available for the common good.”
　　第26题 Thousands of people died in the Bam earthquake mainly because__________ .
　　A.the earthquake occurred in the cold December
　　B.many mud.brick houses collapsed
　　C.the earthquake reached 7.8 0n the Richter scale
　　D.bamboo houses hadn’t been built yet
　　答案：B
　　第27题 The phrase“a universal material”(Line 5，Paragraph l)refers to a material that can be found__________ .
　　A.everywhere in Indial B.in the universe
　　C.in a university D.in a unique place
　　答案：A
　　第28题 What was the result of the test?
　　A.The shake lasted 1 50 seconds. B.The simulation was over 10 times as violent.
　　C.The paint was cracked. D.The model remained undamaged.
　　答案：D
　　第29题 The researchers have been working hard to
　　A.reduce the damage by earthquakes B.explore the functions of bamboo
　　C.build bamboo houses for a billion people D.design bamboo house models
　　答案：D
　　第30题 Which of the following are the advantages of bamboos in building houses?
　　Ⅰ.Cheap to get.
　　Ⅱ.Light to carry.
　　Ⅲ.Easy to build.
　　A.Ⅰ.and Ⅱ. B.Ⅱ.and Ⅲ. C.Ⅰ.，Ⅱ.and Ⅲ. D.Ⅰ.and Ⅲ.
　　答案：D

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