bamboo is a kind of wild grass. there are more than 1450 species 任务型阅读

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1、Bambooisakindofwildgrass.Therearemorethan1450species任务型阅读　　任务型阅读阅读下面短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词，每个空格只填1个单词。　　Bambooisakindofwildgrass.Therearemorethan1450speciesofbamboothatgrowacrosstheworld.Itishollow(空的),soitisverylight.　　Forthousandsofyears,bamboohasbeenusedinmanydifferentways—fromfo

2、odtomedicinetoclothing.Itisalsousedforfurnitureorman-madebuildingproductssuchasflooringandwindowcovers.However,bambooisnotoftenusedasabuildingmaterialinthedevelopedworld.　　KentHarries,aprofessorattheUniversityofPittsburgh,seesbambooasagreatbuildingmaterialbecauseofthefollowing.　　First,itisst

3、rong.Thestrengthofatleastthreespeciesofbambooissimilartosteel.Besidesitsstrength,Harriessaysthatbamboohasotherfeaturesthatmakeitagreatbuildingmaterial.Hesaysitcankeepitsshapeandstrengthevenunderpressure.　　Second,it’sverytall.Itcangrowupto20metersanditsupportsitsownweight,eveninthestrongwind.

4、　　Third，bambooalsogrowsquickly.Bamboothatissuitableforconstructionneedsmuchlessresourcesthanwood.Itlivesontherainwater,springwaterandsunlight.Theharvestcycleofbambooisabout3years.Softwoodssuchaspine(松树)andspruce(云杉)haveaharvestcycleofabout10years.Andhardwoodsthatcomefromfloweringplantssuchas

5、maple(枫树)andwalnut(胡桃树)needmorethan30years.　　Peopleusuallythinkbambooisonlyforpoorpeople.Butinmanycountries，bambooisusedforbuildingfloorsandroofsandevenbeautifulhouses.　　Bamboo　　Abstract　　Thereare11450speciesofbambooacrosstheworld.　　Itisnot2becauseitishollow.　　Itcanbeusedinmanydifferentwayss

6、oitisvery3.　　Reasonsforbeingagreat　　4material　　Itisasstrongas5.　　Itsshapecanbealwaysthe6evenundergreatpressure.　　Itcansupportitsownweightinthe7wind.　　Itneeds8yearsthanotherwoodstohaveaharvestcycle.　　Itonlyneedsrainwater,springwaterand9togrowup.　　Conclusion　　Peopledon’tthink10peopleliveinhous

7、esmadeofbamboo,butbeautifulbamboohouseshavebeenbuiltinmanycountries.