Unit 3 Topic Talk 课件-高中英语北师大版选择性必修第一册

Unit3ConservationTopicTalkWarmupTaketurnstoaskandanswerinpairs.1Arecoral(reefs)livinganimalsorplants?Why?2Whyarecoralreefsoftencalledtherainforestsofthesea?3Whataresomeofthethreatstocoralreefs?4Ifcoral(reefs)werespeakingtoyou,whatwouldtheysay?WarmupWatchthevideo:NatureisspeakingWarmupRoots&ShootsThetimeofitsestablishmentThefounderThepurposeThemeaningofitsnameRecallandcompletethetablebelow.Intheearly1990sDr.JaneGoodallToeducateyoungpeople,frompre-schooltouniversitystudents,sotheycanhelptobuildafuturethatissecureandlivetogetherinpeacewithnature.Rootsmoveslowlyunderthegroundtomakeafirmfoundation,andshootsseemsmallandweak,buttheycanbreakopenbrickwallstoreachthelight.Pre-listeningNamesomehumanactivitiesthathaveanimpactontheenvironment.Farmfarm,work,travel,live,hunt,fish,construct,destroyanimalhabitats…Whatneedstobeprotected?FarmtheEarth,plants,oceans,forests,animalsandtheenvironment,ourplanet,ourland…WhatarethewayswehumansdestroyNature?theuseofoilandcoal,plasticwaste,drivingcars,overdevelopingnaturalresources,cuttingdownforests,mining,buildingnewchannelsintheseaandfactoriesontheland,creatingpollutionwithchemicalwaste…Pre-listeningWhatpositiveactionsshouldwetaketoprotectourplanet?reducetheamountofwasteweproduce,reusepreviouslyuseditems,recycletheusedthingsthantoburnthem,helpsaveenergyandresources,cutdowntheuseofunrecyclableplastic,playourpart,usecarsless,cycleandwalkmorePre-listeningListenforunderstanding(Ⅰ)Listentothedialogueandcompletethesentences.▪Ireallyfeelstronglythatweneedtochangethewaywe_________inordertoprotect__________.▪Icanseethat____________________isoneofthebiggestthreatstoourplanet.▪Weallneedto_____________________________________________.ConservationliveourplanettheuseofoilandcoalrecycleandreducetheamountofwasteweproduceListenagainandcompletethepassage.ProfessorLindaWei,______________________,gavealectureyesterday.Herlecturewasreally__________!Meilearntalotabout___________________________theworldisfacingnow.ProfessorWeiwasvery_______________usingcleanenergy.Wedefinitelyneedto__________differentformsofpowerassoonaspossible.Shetalkedabouthow____________iskillingouroceans.Weshould_________theuseof__________________toprotectourplanet.anenvironmentalexpertinformativetheenvironmentalchallengespassionateaboutswitchtoplasticwastecutdownunrecyclableplasticListenforunderstanding(Ⅰ)TalkinpairsUsetheTextBuildertotalkaboutyourfeelingsonconservationorhowtoprotecttheenvironment.▪Ireallyfeelstronglythatweneedtochangethewayweliveinordertoprotectourplanet.

▪Icanseethattheuseofoilandcoalisoneofthebiggestthreatstoourplanet.▪Weallneedtorecycleandreducetheamountofwasteweproduce.Listenforunderstanding(Ⅱ)1WhyisDr.Bradshawworkingonprotectingrhinos?2Whatdopeopledotorhinos?Rhinosareindanger.Somepeopleincorrectlythinkrhinos’hornsareusefulinmedicineandillegallyhuntthem.Listentothedialogue.Answerthequestions.3WhatdoesDr.Bradshawsuggestdoing?

4Whatmayhappen,ifwedon’tdosomethingnow?Makingeveryoneknowthathuntingtheseanimalsisillegalandthattheseamazinganimalsarepartoftheworldwelivein.Therewillbenorhinosleftintheworldin20years.Listenforunderstanding(Ⅱ)DiscussingroupsDoyouagreeordisagreewiththequotes?(P.51)Supportyouropinionswithareason/anexample.Discusswithyourteammembersaboutconservationandhowwecanprotecttheanimalsandourenvironment?DiscussingroupsConservationisastateofharmonybetweenmenandland.—AldoLeopoldTakewithrestraintanduseinmoderation;thiswayoneshallalwaysknowcontentment.—ZizhiTongjianDiscussingroupsConservationmeansthewiseuseoftheEarth

anditsresourcesforthelastinggoodofmen.—GiffordPinchotEnvironmentalpollutionisanincurabledisease.

Itcanonlybeprevented.—BarryCommonerAssignmentUsethelanguageyouhavelearnttowriteashortparagraphaboutwhatyouknow,howyoufeelandwhatyouneedtoprotecttheenvironmentinthefuture.Thenshareitingroups.NotesAfterthelecture,Icanseethattheuseofoilandcoalisoneofthebiggest_______(threat)toourplanet.threatsHesaidarmyofficershadthreatenedtodestroythetown.他说陆军军官们曾威胁要摧毁那座小镇。threatenv.威胁

1.threatn.威胁；（灾难等坏事）发生的可能There’salittlebitofviolencehereandthere,butnothingthat’sathreattothegeneralsituation.这儿时不时会有一些小的暴力事件发生，不过这并不影响总的局势。NotesMilkroundsarethreatenedascustomersswitchtobuyingfromsupermarkets.随着顾客转而从超市购买牛奶，送牛奶的生意受到了威胁。switchoff=turnoff关掉；切断；关闭switchon=turnon打开；接通2.switchto切换到；转到Wedefinitelyneedtoswitchtodifferentformsofpowerassoonaspossible.我们确实需要尽快转换到不同形式的能源。NotesThisisacollectiveresponsibility;allofushavearoletoplay.这是一个需要集体承担的责任，我们大家都可以发挥作用。Shewouldonlyplayaroleifshecouldidentifywiththecharacter.她只愿扮演她能认同的角色。playarolein在……中起作用；在…