MacquarieIsland:fromChaostoConservationLearningaimsTolearnhowthechaoswascausedinMacquarieIslandandhowpeopletriedtoconserve(保護)theisland.2.Touse“causeandeffect”structure(因果結構)tounderstandthepassage.3.Torealizethegreateffectofhumans’actionsonecologyandtheimportanceofecologicalbalance.（生態(tài)平衡）Whatanimalscanyouseeinthepicture?

Penguinsandabird.導入2.Whatwouldtakeplaceifcats,ratsandrabbitswereintroducedtoanenvironmentlikethis?Theywouldhuntthebirdsandeatthenativevegetation,thusbreakingthelocalecologicalbalance.MacquarieIsland:fromChaostoConservation預習檢測一

decreasedeparturetackleinterventionpest-freemultiplychaos

conservation

9.vegetation10.parakeetimmunitysoilerosionMacquarieIsland

inconsequenceWorldHeritageSiteelephantsealsinvadingspeciesinharmonywith

下降離開解決干預無害蟲的增加混亂保護麥夸里島結果是世界文化遺產海象植被土壤侵蝕長尾鸚鵡免疫力入侵物種與---和諧共處預習檢測二（structure）Part1Para1

Part2Para2-3 Part3Para4-6

theintroductiontotheislandthechaosoftheislandtheconservationoftheisland

Lookthroughthepassageandmatchthemainideawitheachpart.ReadthePart1andthink:Howdoesthewriterintroducetheislandfromthefollowingaspects?1.Location1486km1294km2.Shapelongandthin

Howwastheshapeformed?Strongwindsandstormyseassculpteditsshape.

Inthe________________Ocean,________betweenAustraliaandAntarctica.South-westPacifichalfway3.LandscapeGreengrass;barerock;awildandnaturalbeauty

theintroductiontotheisland

4.Inhabitants

royalpenguins;kingpenguins;elephantseals1.Whatanimalswerebroughttotheisland?2.Whathappenedaftertheanimalsreachedtheisland?ReadPart2(paras.2-3)andanswerthequestions.Ratsandmice,rabbitsandcatswerebroughttotheisland.Theratstookover...,eating...andattacking...Thecatsdeveloped...Therabbitsmultiplied...andbeganeating...and...,causing...

thechaosoftheisland

rats&micerabbitshumansbirdssoilerosionparakeets

thecauseandresultflowchart

catsproviderats&micetakeover...eating...andattacking...controlrabbitsdeveloped...humansintroducedeat...dig...unknowinglybroughtbirdssoilerosionparakeetshunted...

thecauseandresultflowchart

catsbroughtrats&micebirdstakeover...eating...andattacking...catscontrolrabbitsdeveloped...humansintroducedsoilerosioneat...dig...provideunknowinglybroughtbroughtbirdseating...andattacking...soilerosionparakeetshumansrats&micehumanstakeover...hunted...Retellthispartaccordingtotheflowchart

Humans__________actionshavea________effectonecologycarelessbadWhatdidpeopledotodealwiththebadeffect?

themeasurestodealwiththechaos

TimeMeasure(s)Purpose(s)Result(s)ReadPart3(paras.4-6)&postscript,

andfillintheblanks.afterthe1970sinthe1980safter2006____wasreleased__________wereused.toremove_______________to__________toremovealltheremaininginvadingspeciesThelastcatwascaughtin_______.Themouseandratpopulationstartedto________.avirustraps&dogscatchthecatsTherabbitpopulation_______,butlatertheydevelopedan________tothevirusandtheirnumbers_______onceagain.Thecatsturnedtheirstomachsbackto______.alltherabbitsdecreasedimmunityexplodednativebirds2000increase______and_____wereused.poisondogsIn2014,theislandwas________anditsecologyisontheroadto________pest-freerecoveryproper?Humans’____________measuresmaydogreaterharmtoecology.improper

MacquarieIslandusedtobea1.________(natural)beautifulplacebuteverythingchangedwhenhumansarrivedontheisland.Theybroughtratsandmiceontotheisland,andthesesmallanimalsquicklytookovertheisland,2__________(eat)thebirds`eggsandattackingbabybirds.Catswerebroughttotheislandtocontroltheratsandmice.3_______________(fortunate),thecatssubsequentlydeveloped4_____________appetiteforthebirdstoo.Meanwhile,rabbits5_________________(introduce)totheislandasasourceoffoodforhumans,buttheymultipliedrapidlyandbeganeatingthenativevegetationanddiggingholes,6____________causedsoilerosion.

Theexplodingrabbitpopulationprovidedplentifulfoodforthecats.7_________consequence,thenumberofcatsalsoincreased.Thisinturnledtomorecats8_______________(hunt)thebirds.Later,aviruswasreleasedontotheisland,andtherabbitpopulationdecreased.Butmeanwhilethecatskilledmorebirdsforlackoffood.Inthe1980s,trapsanddogswereused9_____________(catch)thecats,anditworked.Withthedepartureofcatsfromtheisland,themouseandratpopulationincreasedagain.Therabbitsalsodevelopedanimmunitytothevirus,andtheirnumbersexplodedagain.Thisincidentmade10________clearthattheproblemneededsolvingonceandforall.

eating

Unfortunately

an

wereintroduced

which

In

hunting

tocatch

it

naturallySummaryDeeperthinking:WhatdoyouthinkistoblameforthechaosinMacquarieIsland?rats&mice?cats?rabbits?human’scarelessbehaviors

human'simpropermeasures“Wehumansoweittotheislandtogiveitahappyending.”ReadforuseGroupworkDisscus