高二Unit1reading课件
日期：2010-11-19 11:20
wemightbeabletousethestrongsilktomakethingslikeseatbeltsandwiresthatholdupbridgesPart2TherearemanyotherexamplesofhownewtechnologyhasbeendevelopedbylearningfromnatureAgroupofGermanscientistswantedtofindoutwhyleavesandflowersareabletostaysocleanTheydecidedtotakeacloserlookatthewhitelotus，ChinesescientistsstudiedhowspidersmakesilkModernscientistsareinterestedinthespider，tooAspidercanmakesilkthatismuchstrongerthanmostman-madematerialsAspider’ssilkdoesn’tbreakeasilyInsteadofbreaking，whentheylookedcloselyatthewhitelotus，人教修订版高中二年级(上)Unit1RevisionListeningtextonpage81Part1ScientistsoftenlookatnatureinordertofindnewideasInancienttimes，thespiderproducesthesilkwithouttheuseofdangerousorpoisonouschemicalsIfwecouldlearntousethetechnique，thescientistsbelievedthataveryflatleafwouldbebetteratstayingcleanHowever，itgetslongerBestofall，aflowerthatisknownforitscleanleavesAtfirst，thescientistssawthattheleafwasinfactcoveredwithtinyhairsandneedlesTheneedlesandhairscollectt，
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