Unit5RevealingnatureStartingout课件高中英语选择性

SB1U5RevealingnatureStartingout(page65）1Whatdoyouknowabouttheseanimals?Whatmakesthemspecial?2Whatothersimilaranimalsdoyouknowabout?Shareyourknowledgewiththeclass.

LookandanswerLookatthepagefromasciencemagazineandanswerthequestions.(P65-1)Komododragon:(科莫多巨晰） KomododragonswerefirstencounteredbyWesternresearchersin1910.TheancestoroftheKomododragonmostlikelyevolvedinAustralia,then,reachingtheIndonesian900000yearsago.ananimalthatlivedinthepastwhichamodernanimalhasdevelopedfromv.遭遇(近：meetwith,runinto)偶遇，邂逅(近：comeacross)v.进化TheKomododragon TheKomododragonisthelargestlizardintheworld.Itcangrowtothreemetresinlengthandweighabout135kilograms.Despiteitssizeandweight,itcanrunatupto20kilometresperhour.Duck-billedplatypus（鸭嘴兽）Thefirstscientiststoexamineapreserved(保藏的)platypusbodyjudgeditafakeinthelate18thcentury.Theoldestdiscoveredfossilofthemodernplatypusdatesbacktoabout100,000yearsago.v.保护，维护，贮存n.动物保护区=datefrom追溯到Theduck-billedplatypusisasmallegg-layingmammal(upto60cminlength)foundonlyinEasternAustraliaincludingTasmania.Asitsnamesuggests,ithasamouththatlookslikeaduck`sbill,whileitsthickfurandflattailaresimilartothoseofabeaver（海狸）.Duck-billedplatypus:Theoldestdiscoveredfossilofthemodernplatypusdatesbackto100000yearsago.Nautilus（鹦鹉螺）Fossil（化石）recordsindicatethatthenautilushassurvivedrelatively（相当地，相对地）unchangedforaround500millionyears.Thatiswhyitisoftengiventhename“livingfossil.”1Whatdoyouknowabouttheseanimals?Whatmakesthemspecial?LookandanswerLookatthepagefromasciencemagazineandanswerthequestions.(P65-1)Theyareallspeciesthatexitthousandsofyearsonearth;Theyareoldandrare(unusual).2Whatothersimilaranimalsdoyouknowabout?Shareyourknowledgewiththeclass.

Jellyfish(水母)aresoft-bodied，free-swimmingaquatic(水生的)animalswithanumbrella-shapedbell.Theyarefoundineveryocean.

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Howcanseedstravel?Howcanthisbenefitplants?

2Canyouthinkofanotherexampleofseedstravelling?Shareitwiththeclass.Watchandanswerv.传播，移动

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Howcanseedstravel?Howcanthisbenefitplants?

2Canyouthinkofanotherexampleofseedstravelling?Shareitwiththeclass.Watchandanswerv.传播，移动Seedsusuallyarecarriedbythewind,water,animalsandpeople.Plantscanhaveabetterchanceatlife

whentheyarefurtherawayfromtheirparentplant.•Dandelionseedshavelittleparachutestocatchthewindandgofurther;•Humanscanspreadseedsifseedsgetstucktotheirclothingorshoes.Wordsfromthevideo:Guessthemeaningsfromthecontext.Coconutsarecarriedalongbyoceancurrents.2)Anotherwayforseedstotravelisthroughthedigestivesystemsofanimals.3)Manyplantsproducefleshyfruitsthatanimalsliketoeat.4)That’swhynaturehascomeupwithallsortsofdifferentwaysforseedstotravel.5)Perhapswecanlearnsomethingfromthenaturalworldbybranchingoutandexploringthevariouswondersofnature.Wordsfromthevideo:Guessthemeaningsfromthecontext.Coconutsarecarriedalongbyoceancurrents.themovementofwaterintheseaorariver;themovementofairinaparticulardirection

（海洋或江河的）水流，潮流；气流2)Anotherwayforseedstotravelisthroughthedigestivesystemsofanimals.connectedwiththedigestionoffood消化的3)Manyplantsproducefleshyfruitsthatanimalsliketoeat.(ofplantsorfruit植物或水果)thickandsoft肉质的;havingalotofflesh多肉的Wordsfromthevideo:Guessthemeaningsfromthecontext.4)That’swhynaturehascomeupwithallsortsofdifferentwaysforseedstotravel.tofindorproduceananswer,asumofmoney,etc.找到（答案）；拿出（一笔钱等）5)Perhapswecanlearnsomethingfromthenaturalworldbybranchingoutand