Unit1TheworldofoursensesProjectProducingaTVshowTeachingAims:TolearnthepassageTohelpstudentstounderstandhowanimalsusedtheirownuniquesensesoverthelongprocessofevolution.PrepareaTVshowabouthowtheanimalusesitssenses.TeachingProcedure:StepOne:Lead-inAskstudentswhattheyknowaboutsharks.1.Whatdoyouthinkisthemostdangerousanimalsintheocean?2.Whatdoyouknowaboutsharks?3.Whatwillyoudoifasharkattacksyou?Therearenearly400speciesofsharks,whicharedividedinto8orders(目)and30families(科).Therearelotsofdifferencesinsharks.Showthemthepicturesofsharksandtellthemthesharkspecies.StepTwo:Readingthearticleaboutsharkattacks1.Fastreading.Askstudentssomequestionsaboutthepassage.Howmanydifferenttypesofsharksarethereintheocean?Nearly400.Doallofthemattackhumans?No.Onlyabout30typesareknowntohaveattackedhumanbeings.Whatisthemostdangerousshark?Thegreatwhiteshark.Whatsharksarealsoratherdangerous?Twoothersharksarealsoratherdangerous:thetigersharkandthebullshark.2.Detailedreading.Helpstudentstogetdetailedinformationaboutsharks.Thethreetypesofsharkattacks:Inthemaintype,thesharkattacksyoubecauseitmistakesyouforafish,butwhenittasteshumanfleshitdecidestogiveupandswimsaway.Inthesecondtype,thesharkpushesyouwithitsnosestofindoutifyouarefittobeeatenadthenbitesyouifitthinksyouare.Inthethirdtype,thesharkwaitsforyoutoswimbyandattacksyousuddenly.Toreducetheriskofasharkattack:★Donotswiminthedark.★Donotgoswimmingintheoceanifyouhaveafreshwound.★Donotwearbrightclothingorjewellery.★Stayingroups.StepThree：BrainstormingWhatotheranimalswhoseuniquesensesenablethemtosurvivetheirenvironmentsdoyouknow?StepFour:Readingthearticleaboutpigeons1.Askthemreadthearticleandanswersomequestionsbasedonthearticle.2.Askthemmorequestionsabouthowtheanimalusesitssenses.StepFive:LanguagepointsAskstudentstofillintheblanksandhelpthemunderstandsomeimportantwordsandphrases.Showsomeusefulphrasesandletthemtellthemeaningsofthem.1.Contrarytowhatmanypeoplemightassume,evidenceshowsthatsharksseldomattackhumans.contraryadj.相反的n.相反的事实或情况contrarytosth.与之相异的，相反的e.g.Contrarytopopularbelief,manycatsdislikemilk.与普遍的看法相反，许多猫并不喜欢牛奶。2.Don’tbefrightenedbysharksasyouare30timesmorelikelytobehitbylightningthanbeattackedbyashark.likelyadj.可能的e.g.Ticketsarelikelytobeexpensive.入场券可能很贵。倍数的表达法有三种：①A+谓语+倍数词+形容词或副词的比较级+than+B②A+谓语+倍数词+as+形容词或副词的原级（+名词）+as+B③A+谓语+倍数词+度量名词+of+B3.Unlikehuman,theynevergetlostandcanalwaysfindtheirwayhome.unlikeprep.不像，与……不同e.g.Unlikemostsystems,thisoneisveryeasytoinstall.本系统与多数系统不同，极易安装。StepSix:IntroducingtheprojectAskstudentstodiscussandprepareaTVshowabouthowtheanimalsusesitssenses.ProducingaTVshowabouthowtheanimalusesitssenses.planningGetintogroups(6-8).Decidewhichanimaltofocuson.Clearassignments.Youcanlookthequestionsonpage19andassigntasktoeachgroupmember.StepSeven:Homework1.DoPartspartA,BandConPage96inWorkbook.2.Reviewwordsandphrasesinthisunit.
