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TolearnthepassageTohelpstudentstounderstandhowanimalsusetheirownuniquesensesoverthelongprocessofevolution.ToprepareaTVshowabouthowtheanimalusesitssenses.1.Whatdoyouthinkisthemostdangerousanimalsintheocean?2.Whatdoyouknowaboutsharks?3.Whatwillyoudoifasharkattacksyou?Therearenearly400speciesofsharks,whicharedividedinto8orders(目)and30families(科).Therearelotsofdifferencesinsharks.BaskingsharkSharkSpeciesWhalesharkGreatwhiteBluesharkTigersharkSharkattacksReadthearticleaboutsharkattacksonPage18toknowmoreaboutsharks.1.Howmanydifferenttypesofsharksarethereintheocean?2.Doallofthemattackhumans?Nearly400.No.Onlyabout30typesareknowntohaveattackedhumanbeings.3.Whatisthemostdangerousshark?4.Whatsharksarealsoratherdangerous?Thegreatwhiteshark.Twoothersharksarealsoratherdangerous:thetigersharkandthebullshark.Readthetextscarefullyanddecidewhetherthestatementsaretrue(T)orfalse(F).1.Thetigersharkandthebullsharkarethoughttobenotdangerousatall.()2.Sharksseldomattackpeoplewhoareinalargegroup.()3.Anincreaseinwatersportshasledtoanincreaseinsharkattacks.()FTTThethreetypesofsharkattacks:Inthemaintype,thesharkattacksyoubecauseitmistakesyouforafish,butwhenittasteshumanfleshitdecidestogiveupandswimsaway.Inthesecondtype,thesharkpushesyouwithitsnosestofindoutifyouarefittobeeatenandthenbitesyouifitthinksyouare.Inthethirdtype,thesharkwaitsforyoutoswimbyandattacksyousuddenly.Toreducetheriskofasharkattack:★Donotswiminthedark.★Donotgoswimmingintheoceanifyouhaveafreshwound.★Donotwearbrightclothingorjewellery.★Stayingroups.Advicestofollowifasharkattacksyou★Keepcalm.Donotpanic.★Hitthesharkonthenosewithyourfist.★Stickyourfingerintheshark’seye.Workinpairsorgroups.Fillineachblankwithnomorethanonewordaccordingtothetext(P18).SharkattacksParagraphoutlineSupportingdetailsIntroduction★Therearenearly400typesofsharksintheworld.★Therearethreewell-knowntypesofsharksthat(1)_____humans.attackParagraphoutlineSupportingdetailsThreetypesofsharkattacks★Thesharkmistakesyouforafishandthenswimsawayafter(2)_____yourflesh.★Thesharkpushesyouwithits(3)_____andthenbitesyouifitthinksyouareitsfood.★Thesharkstaysuntilyoutoswimbyandthenattacksyouallofa(n)(4)_________.tastingnosesuddenParagraphoutlineSupportingdetailsSuggestionsHowtoavoidsharkattacks★Donotswiminthedark.★Donotswimwithfresh(5)_________.★Donotwearbrightclothingorjewellery.★Donotswim(6)_____.Whattodowhenattacked★Keepcalm.★Hitthesharkonthenosewithyourfist.★Stickyourfingerintheshark’s(7)_____.woundsaloneeye1.Afterrollingupthesmallpieceofpaper,theofficerattachedittoapigeon’sleg.()2.Pigeonsareknownforflyinghomefrommorethantwothousandkilometresaway.()FFReadtextonpage19.Decidewhetherthestatementsaretrue(T)orfalse(F).Workinpairsorgroups.Fillineachblankwithnomorethanonewordaccordingtothetext(P19).ThewonderfulworldofpigeonsParagraphoutlineSupportingdetailsTheusesofpigeons★(1)_________peopleusedpigeonstocarrythenewsorthemail.★Armiesusedpigeonstocarrymessagestoandfromthefrontlinesduringwars.AncientParagraphoutlineSupportingdetails(2)_________forbeingusedPigeonshaveawonderfulsenseofdirectionandcanflyhomefromfaraway.Howtheyfindtheirway★Pigeonsmayhaveacompassinsidethemtohelpthemfind(3)_____.★Pigeonsalsousetheirsightandsenseofsmelltohelpthemfindtheirwayhome.northReasonReadthesecondarticle‘Thewonderfulworldofpigeons’andanswerthequestions.1.Whatdoesthearticlebeginwith?Itbeginswithastory.2.Whatisthestoryabout?Itisaboutwhatanofficerdidwhenhisarmywasattackedbytheenemy.3.Whydoesthewriterbeginwiththisstoryinhisarticle?Toarousereaders’interest./Tointroduceawonderfulanimal—pigeons.4.Howdopigeonsfindtheirway?Pigeonsappeartohaveacompassinsidethemthattellsthemwhichwayisnorth,theyalsoappeartousetheirsightandeventheirsenseofsmelltotellthemwhichwaytheyshouldgo.Readthelasttwoparagraphsagainandfindthemainideaforeachparagraph.Paragraph5:Pigeonshavethesenseofdirection,sotheirgreatestuseistocarrythenews,themailormessages.Inwars,theywereabletosavethelivesandhelpwin.Paragraph6:Thereasonwhypigeonsnevergetlostisthatnotonlytheyhaveacompassinsidebuttheyusetheirsensesofsightandsmellaswell.Whatotheranimalswhoseuniquesensesenablethemtosurvivetheirenvironments?Dogsandrabbitshavehighlydevelopedsensesofsmellandtouch.Aspider’suniquesenseissight.Butterfliesandbeeshavetastereceptorsontheirfeet.Lionshaveverygoodnoses,whicharesensitivetosmell.Catshaveawelldevelopedsenseoftouch.Miceandelephantshavegoodhearing.Eagle’seyesightisfourtimesassharpasthatofapersonwithperfectvision.1.Contrarytowhatmanypeoplemightassume,evidenceshowsthatsharksseldomattackhumans.和许多人可能会认为的正好相反，证据显示鲨鱼极少攻击人类。contraryadj.相反的n.相反的事实或情况contrarytosth.与之相异的，相反的e.g.___________popularbelief,manycatsdislikemilk.与普遍的看法相反，许多猫并不喜欢牛奶。ContrarytoIntheendthecontrarywasprovedtrue:hewasinnocentandshewasguilty.最后证明事实正好相反:他是无辜的，而她则有罪。2.Don’tbefrightenedbysharksasyouare30timesmorelikelytobehitbylightningthanbeattackedbyashark.不要害怕鲨鱼：你被闪电击中的几率要比受到鲨鱼袭击的几率大三十倍。likely既可作形容词，也可作副词。★作形容词时，意为“可能的，预料的，有希望的”，可作定语，也可作表语。作表语时，常用于以下结构：belikelytodosth.；belikely+that从句。e.g.____________________ofthefirewasacigarette.最有可能引起这场火灾的