Unit5AdelicateWorldUnderstandingideas课件高二英语选择性

Unit5ADelicateWorldMacquarieIsland:

fromchaostoconservationAnimalsinthepictures

birdspenguinsWhatistherelationshipbetweentheanimalsandtheislandTheyarenativeinhabitantsortheyarenativetotheisland.MACQUARIEISLAND:

from

ChaostoConservation/'keɪɒs/n.混乱；紊乱astateofcompleteconfusionandlackoforder

/kɒnsə'veɪʃn/n.theprotectionofthenaturalenvironment（对自然环境的）保护Predict:whathappenedtotheislandReadandmatchthemainideawithitscorrespondingparagraph.A.Therabbitproblemresultedinparakeets'dyingout.B.Therat,mouseandrabbitproblemmadepeoplerealisethatproblemsshouldbesolvedonceandforall.C.Iparticipatedinaprogrammetotacklethisveryproblem.D.NativeinhabitantsonMacquarieIslandwereonceinperfectharmonywiththeirnaturalhabitat.E.Peoplereleasedavirustokillrabbitsandusedtrapsanddogstocatchthecats.F.Ratsandmicebroughttotheislandcausedharm.ADDYOURTITLEHEREReadpara.1andfindoutsomeinformationaboutMacquarieIslandLocationShapeLandscapeTitleInhabitantsinthe____________PacificOceanbetween_______________and_______shapecausedby_______windand______________________and________contrast___________________and_______penguins,_________and_________AustraliaAntarcticaPacificOceanSouth-westAustraliaAntarcticaADDYOURTITLEHERESomeinformationaboutMacquarieIsland(麦夸里岛)LocationShapeLandscapeTitleInhabitantsinthe____________PacificOceanbetween_______________and_______shapecausedby_______windand______________________and________contrast___________,givingita_________and________beauty________and_______penguins,_________and_________South-westAustraliaAntarcticalongthinstrongstormyseasADDYOURTITLEHERESomeinformationaboutMacquarieIsland(麦夸里岛)LocationShapeLandscapeTitleInhabitantsinthe____________PacificOceanbetween_______________and_______shapecausedby_______windand______________________and________contrast___________givingita_________and________beauty________and_______penguins,_________and_________South-westAustraliaAntarcticalongthinstrongstormyseasgreengrassbarerockdramaticallyUNESCOWorldHeritageSiteroyalkingelephantsealswildnaturalnativeinhabitantsexistedinperfectharmonyThen,whathappenedtotheislandBut...Diditremainthishamoniousandpeacefulsceneallthetime181018911970s1980s20002006WhatdidhumansdoWhydidtheydoitHowdiditend2014actionspurposesresultsReadpara2MacquarieIslandarrivedbroughtunknowinglytookoveratebirds'eggsattackedbabybirdsdevelopedanappetiteforthebirdswerebroughttocontrol1810Readpara3andconnectthepicturesMacquarieIslandintroducedasasourceoffoodmultipliedatevegetationdugholesprovidedfoodthenumberincreasedhuntedbirdsparakeetsdiedout1891Readpara4anddrawamindmapreleasedavirustoremovedecreasedto10,000lessfoodkilledmorebirdsusedtocatchThelastcatwascaughtin2000.usingexamplesandnumberstoconvincereaders1970s1980sReadpara5anddrawamindmap

increaseddevelopedanimmunityexplodedagaindugholesMacquarieIsland

landcollapsedasubstantialnumberofpenguinswerekilledWhilethecat’saway,themicewillplay.2006Readpara6Howdotheysolvetheproblem1.Thefirststepinvolvedpoisonbeingdroppedfromhelicopters.2.Thenextstepistoremovethelastremaininginvadingspeciesbyusingthetraineddogs.2014“Thisinterventionisalong,much-delayedendingtoasadstory,butwehumansoweittotheislandtogiveit

ahappyending.”181018911970s1980s20002006chaosconservation2014204yearsWhoaretheinvadingspeciesItis_________thathavedamagedthe__________oftheMacquarieislandanditishumans’_________tohelpitreturnto________.humansecosystemdutynormal(Whoeverstartedthetroubleshouldendit!)解铃还须系铃人Organiseinformationfromthepassageandcompletetheflowchart.eatingthebirds’eggsandattackingbabybirdstheytookovertheisland,Catswerebroughttotheisland.in1810Thecatsdevelopedanappetiteforthebirds.Rabbitswereintroducedtotheisland.Toprovidefoodforhumans.morerabbitsmeantmorecatsMorecatshuntedthebirdsandparakeetsdiedout.Aviruswasreleasedontotheisland.Trapsanddogswereused.Poisonanddogswereused.Toremovealltherabbitsfromtheisland.Tocatchthecats.Toremovealltheremaininginvadingspecies.Theislandispest-freeanditsecologyisontheroadtorecovery.Substantialreductionofrabbitpopulationledtocatskillingmorenativebirds.Thepopulationofratsandmiceincreased.in1970sin1980sin2000Therabbitpopulationexplodedonceagain.in1891in2006HumanbeautySummarychaosconservationharmonyHumansbrokethe_______ofthe________balanceecosystemHumanstriedto_________the_______conserveecosystemChoosetheauthor’spurposeinwritingthepassage.

1.ToanalysehowMacquarieIslandwassavedfromdestruction.2.ToinformreadersofthechaoscausedonMacquarieIslandbyhumans.

3.ToentertainreaderswithafunnystoryaboutwhathappenedonMacquarieIsland.4.Tosuggestwaysinwhichanecosystemcanbeprotected.ThinkandshareWhatlessonsdoyoulearn※Avoidhumanintervention.※Thinktwicebeforeactionwhiletacklingproblems.※Raisetheawarenessofprotectingnature.※Keepbalancedbetweendevelopmentandconservation.ClearWatersandLushMountainsareasValuableasGoldandSliver.——XiJinping

1.failtodosth2.inharmonywith3.developanappetitefor4.beintroducedto 5.soilerosion6.outofcontrol未能做成某事与……和谐被引入……土壤侵蚀失控对……产生兴趣Languagepoints:Importantwordsandexpressions

7.remove...from8.decreasefrom...to9.inconsequence10.turnout11.asubstantialnumberof12.onceandforall13.everylast14.oweittosbtodosthLanguagepoints:Importantphrases结果；因此原来是；结果是，证明是大量的每一个(认为)应该为某人做某事彻底地；一劳永逸地从……移走/去除从……减少到……Languagepoints:Importantwordsandexpressions

1.Norwouldtheyfailtoimaginehowitsnativeinhabitants,includingroyalpenguins,kingpenguins,andelephantseals,existedinperfectharmonywiththeirnaturalhabitatforthousandsofyears.Languagepoints:ImportantsentencesParaphrase:Theycouldn’thelpbutimaginehowitsnativeinhabitants,includingroyalpenguins,kingpenguins,andelephantseals,existedincompleteunitywiththeirnaturalhabitatforthousandsofyears.

Languagepoints:Importantsentences例：1)Hedidn’tquithisjob,norwashefired.

他没有辞职，也没有被解雇。2)Theycouldn’tunderstanditatthetime,andnorcouldwe.他们那时无法理解这件事，我们也理解不了。具有否定意义的副词放在句首时，句子要用部分倒装结构。本句中nor

为否定词，它所引导的句子要用倒装语序，常见结构为：Nor+助动词/be动词/情态动词+主语+谓语+其它成分

2.Unfortunately,thecatssubsequentlydevelopedanappetiteforthebirds,too.Languagepoints:ImportantsentencesParaphrase:Unfortunately,thecatssubsequentlybegantoeatthebirds,too.developanappetitefor...

developatastefor...对……产生兴趣developaninterestin...

developaclosefriendshipwith...

与……产生亲密的友谊developthehabitof...

养成……的习惯develop(an)immunityto...

对……产生免疫力

3.Looseontheisland,theydidwhatrabbitsdobest–theymultipliedrapidlyandbeganeatingthenativevegetationanddiggingholes,whichcausedsoilerosion.Languagepoints:ImportantsentencesParaphrase:Rabbitswerefreeontheislandandtheydidwhatrabbitsdobest–theyincreasedtheirnumbersrapidlyandbeganeatingthelocalplants,flowers,etcanddiggingholes,whichcausedsoilerosion.

Languagepoints:Importantsentences1）Wereachedthetopofthemountain.Weweretiredandhungry.形容词（短语）作状语的用法：其逻辑主语为句子的主语，是由主语相同的两个句子改写而成的。=Wereachedthetopofthemountain,tiredandhungry.我们到达山顶。感觉又累又饿。=Satisfiedwithit,Janeboughtthebookimmediately.Jane对这本书很满意，立刻就买了下来。2）Janewassatisfiedwithit.Sheboughtthebookimmediately.

4.Thisinturnledtomorecatshuntingthebirds.Languagepoints:ImportantsentencesParaphrase:Asaresult,thisledtomorecatshuntingthebirds.inturn依次；轮流。还