高中英语 Unit 4 Exploring plants Using language课件 新人教版选修9.ppt

usinglanguage unit4 words rotnectarbatevolveattachmothwaspbeetletypical vt 有代表性的 petaltubedelicatefragrantdaisyodourodourlessdullmustyfruity n 花瓣n 管 管子adj 精巧的 脆弱的adj 芬芳的 香的n 雏菊n 气味 香气 臭味adj 没有气味的 无臭的adj 不鲜明的 阴暗的adj 发的 有霉味的adj 果味的 有葡萄味的 expressions attachtogiveout 帖上 附上发出 气味 热等 分发 howwouldyoudescribeeachplant whatdoyouthinkisunusualabouteachplant 2 oneofthepicturesshowspitcherplantsandanothershows livingstones whichpictureshowswhichplant thenameoftheplantintheotherpictureisrafflesia ingroups lookcarefullyatthephotosoftheplantsandanswerthequestions livingstone rafflesia pitcherplants nowlistentomark gordonandandreatellingtheirclassabouttheseplants whichstudenttalksaboutwhichplant mark pitcherplant livingstonesorlithops gordon rafflesiaarnoldii andrea 3listenagainandcompletethetablewiththecorrectinformation youmightneedtolistenseveraltimes pitcherplant livingstones rafflesiaarnoldii it sshapedlikeapitcher theylooklikestones likeapitcher rounded likerottingmeat onemeterwide small roundwithlargethickpetals frominsectsthatfallintothepitcher fromthesoil hotdryplacesinsouthafrica namibia fromanotherplant junglesinpartsofindonesia shapelikepitcher roundlikestones doesn thaveleaves itisbecomingrare insectsthateatdeadanimals unusualplant th todaymark gordonandandreaaregoingtotellusaboutsomeunusualplants mark doyouwanttogofirst m sure today iwanttotalkaboutaninsect eatingplantcalledapitcherplant listeningtext listentomark m gordon g andandrea a tellingtheirclassandtheirteacher th aboutsomeplants here saphotoofit lookatthisparthere it sshapedlikeapitcher it sactuallyaleafeventhoughitlookslikeaflower it sreallyclever theinsectsareattractedbythesweetsmellcomingfromwhattheythinkisaflower butit satrap onceaninsectgoesdownintothepitcher itcan tgetoutastherearesmallhardhairspointingdownwardsthatpreventitfromescaping intheend theinsectfallsdownintoapoolofliquidatthebottomofthepitcherandgetsdigestedbytheplant s1 that samazing s2 whatfantasticplants th gordon g thesearetheplantsi mgoingtotalkabout they reoftencalled livingstones buteventhoughtheydolookabitlikestones theyareinfactplants s3 wow s4 howinteresting g theirscientificnameislithopsandtheycomefromsouthafricaandnambia thebodyofalithopsisactuallyapairofleavesthathavebecomeroundedlikeastone thisisbecausethisplantlivesinvery hotanddryplaces whentheleavesareshapedlikethis notmuchwaterislostfromtheplant anotherinterestingthingaboutthesestrangeplantsisthatthey rethesamecolourandappearanceofthesoilandstonesaroundit thismakesthemlessobvioustoanimallookingforfood th thanks gordon andrea a i mgoingtotellyouaboutrafflesiaarnoldii aplantthathasafloweraboutonemetrewide infact it sthelargestflowerintheworld rafflesiaarnoldiidoesn thaveanyleaves stemsorroots itdoesn tneedthemasit saparasite itgetsthisfoodby livingonanotherplant youmightthinkthatthisflowershouldsmellwonderfulbutitactuallylooksandsmellslikerottingmeat s2 oh yuck s1 that sdisgusting s3 ithinkit sfantastic a metoo anyway itattractsinsectsthateatdeadanimalsbutinsteadofgettingafeed theinsectspickupitspollenandspreadittootherrafflesias rafflesiaarnoldiigrowsinthejunglesinindonesiabutastheforestsarebeingcutdown it sbecomingveryrare th thanksandreaandthankseveryone thoseplantsarecertainlyfascinating readingtask flowersandtheiranimalpollinators bee humming birds butterflies moth answerthequestions whatistheadvantageforanimalsofvisitingflowers 2 whydosomeplantsneedanimals animalsgetfoodcallednectarfromtheflowers someplantsneedanimalstopollinatethem ananimalpollinatesaflowerbycollectingpollenfromaflowerandpassingitontoanotherflower 3 howdoesananimalpollinateaflower 4 whatfeaturesofaflowerareimportantinattractinganimalpollinators thefeaturesofaflowerthatareimportantinattractinganimalpollinatorsareitscolour shape sizeandsmell 5 whatisnectar 6 whatkindsofanimalsaremostflowerspollinatedby nectarisasweetliquidproducedbyflowersandcollectedbybees mostflowersarepollinatedbybees mothsandbutterflies trueorfalse 1 beesfollowcolouredlinestothenectarinsidetheflower 2 flowersthatarewhiteorpalecanbeseenbynightpollinators 3 butterfliesareattractedtosweet smellingflowers t t f 4 batspollinateflowersatnight 5 flowercolourisnotimportanttohummingbirds 6 allpollinatorsneedtolandonthefloweriftheyaretofindthenectar t f f findothernounsinthechartthatmeantheseamas smell listadjectivesfromthechartthatareusedtodescribedifferentkindsofsmells nounsthat