高中英语Unit 1 The world of our senses--Period 1ppt 课件VIP免费

Unit1Unit1ProjectProducingaTVshowSharkattacks•SharkSpeciesWhalesharkBaskingsharkGreatwhiteTigersharkBlueshark•WhatareSharks?Sharksarefishthathavebeenaroundsincethedinosaurs.Malesarecalled“Bulls”.•Femalesarecalled"Cows".•BabySharksarecalled"Pups“.Moreinformation(http://new-brunswick.net/newbrunswick/shark/types.html)•OthersharkfactsSharkshavefivetosevengillslits.Manysharksmustkeepmovinginordertobreathethatis,inordertokeepwatermovingpasttheirgillslitsbutthisisnottrueofallspecies.Nursesharks,forexample,canliestillandfantheirgillstobringoxygen-richwateracrosstheslits.Becausetheylackaswimbladder,allsharksmustswiminordertoavoidsinkingtowardtheoceanfloor.•Thesharkhassensesspeciallyadaptedfortheanimal'slifeunderwater.Smellisashark'smostacutesense.Approximately70percentoftheshark'sbrainisusedforolfactory(smelling)functions.Experimentshaveshownthatsharkscandetectpreysolelybysmell,andthehungriertheshark,thelessstimulantneededtoelicitareaction.•Sharksaresensitivetolightandcandetectcertainobjectseveninmurkywater.Somehaveatapetumlucidum,amirrorlikelayerundertheretinaoftheeyethatreflectsincominglightandincreasestheamountoflightavailabletotheeye.(Catsandotheranimalswhoseeyes"glowinthedark"alsohavethisfeature.)•Sharksdohaveears,buttheroleofhearingintheshark'slocationofpreyisnotwellunderstood.Asharkcandetectsoundwavesanddisturbancesinthewaterwithitslateralline,orlateralis,system.Thisisaseriesofthincanals,filledwithwater,thatrunsalongtheanimal'sside.Thecanalsareattachedtonervesthatsendsignalstotheshark'sbrain.•Sharkscanalsosenseelectricandmagneticfields.Sensoryporeslocatedontheshark'sheadcandetectaprey'sbioelectricfieldevenifthepreyisburiedinsand.AsharkcanalsodetecttheEarth'smagneticfield.Open-oceansharksmayusethisinformationtonavigateandorientthemselves.Fastreading:1.Whatdoyouknowaboutsharks?2.Howmanydifferenttypesofsharksarethereintheocean?3.Doallofthemattackhumans?4.Howtoavoidbeingattackedbysharks?5.Whataretheiruniquesenses?Secondreading:•Readthetextagainandtrytofindoutthemainideaofeachparagraph.Paragraph1:Therearenearly400typesofsharks.Paragraph2:Sharksdonotfeedonhumans.Paragraph3:Threrearethreetypesofsharkattracks.Paragraph4:Anincreaseinwatersportshasledtoanincreaseinsharkattracks.Paragraph5:Therearethreetipsonwhattodoifasharkattracks.Paragraph6:Donotbefrightenedbysharks.Detailedreading•Threefiercesharks:FillintheinformationthegreatwhitesharkthetigersharkthebullsharkFourpiecesofadvicetoavoidsharkattacks:•Don’tswiminthedark.•Don’tswimifyouarecutorifyouhaveafreshwound.•Don’twearbrightclothingorjewellery.•Tryandstayingroups.Threetipstohelpyouifasharkattacksyou•Don’tpanic.•Hitthesharkonthenose.•Stickyourfingerintheshark’seye.LanguagefocusI’msureyouarecleverenoughtoworkthemout！I’msureyouarecleverenoughtoworkthemout！1.Hehasmuch_______ofwinningthefirstprize.2.Thechancesareahundredtooneagainstyou,it’smost______thatyouwillsucceed.3.Whatdoesthelittledogchiefly__________?4.Don’thithim________head!5.Whynotwearsomeflowersinsteadof_____whenyougototheball?chanceunlikelyfeedononthejewelleryUsefulphrases1.mainlybecause2.twoothersharks3.thechancesofbeingattacked4.comparedto5.manymorepeople6.thelownumber7.feedon8.befittodo9.waitforsbtodo10.thelattertwo11.followtheadvice12.haveafreshwound13.bemorelikelytobedeadly14.overalongdistance15.wearbrightclothingorjewellery16.hitthesharkonthenose17.stickyourfingerintheshark’seye18.30timesgreaterPracticeSummarizethetext｛TypesofsharksAdviceonreducingthechancesofbeingattackedThetipstohelpyouwhenattackedIntroducingtheproject:ProducingaTVshowabouthowananimalusesitssenses.Planning•Getintogroups(6-8).•Decidewhichanimaltofocuson.•Clearassignments.Theanimal’snameIt’suniquesenseDecidewhattypeofshow:Adocumentary,adrama,acartoon,othershowClearassignments•Eachmemberpicksadifferenttopictofindinformationabout•Food(whattheanimaleats)•Habitat(wheretheanimallives)•Size(sizeoftheanimalorpopulation)•Mythsaboutthisanimal(whatpeoplethink)PreparingVisitazoo,watchananimaldocumentary,lookatbooks,surftheInternet……tofindinformationabouttheanimal.WhatiteatsandhowitfindsfoodinthewildHowitprotectsitselfHowitcommunicateswithotheranimalsHowitattackspeopleorotheranimals(ifitdoes)Howithelpspeopleorotheranimals(ifitdoes)Producing1.Focusyourresearchonhowyouranimalusesitssenses.2.TVisveryvisualsopicturesshouldbepresentedinaneasytoseeway.3.Eachmembermustworkondifferentpartoftheshow,keepinginmindtheoveralldesign.4.Eachmemberhastoproofreadthewritinatleastonce,correctmistakesifthereareany,andaddanynewideastheycanthinkof.Presenting•Presentyourshowtotheclass.•Putyoudisplayonthedisplaywall.Homework1.DoPartspartA,BandConpage90inWorkbook.2.Reviewwordsandphrasesinthisunit.Thankyou!