boo2unit1makingadifference课件
日期：2010-05-10 05:18
thespiderproducesthe_______withouttheuseof____________or________chemicals4Ifwecouldlearntousethetechnique，listeningPart1Aspidercanmake____thatismuch_____thanmostman-madematerials2Aspider’s______doesn’t_______easily3Bestofall，wemightbeabletousethestrongsilktomakethingslike__________andwiresthatholdupbridgessilkstrongersilkbreakdangerouspoisonousseatbeltPart2SpiderItcanmakestrongsilkwithoutusingdangerousorpoisonouschemicalsWecoulduseittomakebetterseatbeltsandstrongerwirestoholdupbridgesWhiteLotusItkeepsitsleavescleanusingtinyhairsandneedlesWecouldusethesametechnologytomakepaintthatwouldstaycleanButterflyThebutterflyusessmallpartsonitswingstochangeitstemperatureWecouldusethesamemethodtokeepcomputerscooltalkingStudentA:Youareajournalist，you，
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