Unit5AdelicateWorldUnderstandingideas课件高中英语选择性

LearningObjectivesWewillbeableto...findoutwhathappenedtoMacquarieIsland;makeaflowcharttoshowhumans’actions,purposesandtheresults.talkabouthowtoprotectournaturalecosystem.流程图麦夸里岛自然生态系统Unit5AdelicateworldUnderstandingideas2.Backgroundinformation:

Macquarie/mə'kwɔri/Island(麦夸里岛）GuessGame：Whatanimalsarethey?royalpenguins

皇家企鹅kingpenguin

帝企鹅elephantseals

海象(seal:海豹)seamew

海鸥TheyallliveinMacquarieIsland.=nativeinhabitants1.GuessGame：Whatanimalsarethey?rabbitshumankind人类(总称)

dograt大老鼠

catmice(mouse的复数)non-nativeinhabitants3.Question:

Whatwillhappenifalltheseanimalsareputin

theisland?＋Ithinktheislandwillbe_______.nativeinhabitantsnon-nativeinhabitants=crowded拥挤的destroyed毁掉的damaged受损的chaotic

混乱的...Let’sreaddeeplyintothepassageandfindout...4.Readthetitleandpredictthemainideaofthepassage.MacquarieIsland:

fromChaos

to

Conservation/'keɪɒs/n.混乱；紊乱/kɒnsə'veɪʃn/n.（对自然环境的）保护n.

astateofcompleteconfusionandlackofordern.

protectionofthenaturalenvironment1.TheMainidea:WhathappenedtoMacquarieisland?

_______(Nativeinhanbitant/

Non-nativespecies)introducedtoMacquarie

Island______(helped/attacked)nativebirds,andledtoa__________(subtle/substantial)reductionofbirdpopulationand

eventheextinction(灭绝)ofparakeets.Inaddition,non-nativespeciesateanddevastatedthenative

vegetation.Allofthisplayedapartin_______________(upsetting/cheering)thenaturalharmonyoftheisland.Butnowtheisland’secology（生态）isontheroadto_________(destruction/recovery)withhumanefforts.✔✔✔✔✔Let’sreadtogether!

Non-nativespeciesintroducedtoMacquarie

Island

attacked

nativebirds,andledtoa

substantialreductionofbirdpopulationand

eventheextinction(灭绝)ofparakeets.Inaddition,non-nativespeciesateanddevastatedthenative

vegetation.Allofthisplayedapartinupsettingthenaturalharmonyoftheisland.Butnowtheisland’secology（生态）isontheroadtorecovery

withhumanefforts.2.Matchthemainideaswithparagraphsandfind

thekeywords.Para1Para2Para3Para4Para5Para6A.Toprotectnativeanimals,invadinganimalsspecieshadtoremoved.B.Forbiologicalchain,theisland’srecentstoryisreallyatragicstory.C.Forsomereasons,therewerenocatsin2000.D.MacquarieislandisUNESCOworldHeritageSite.E.Becauseofbiologicalchain,parakeetsdiedout.F.Therat,mouseandrabbitproblemshouldbesolvedonceandforall.ADDYOURTITLEHERE

Thebrief

introductionofMacquarieIslandL______S______L_______Title(头衔）I_________

inthesouth-westPacificOcean,halfwaybetweenAustraliaandAntactica

longandthinshapecausedbystrongwindandstormyseasgreengrassandbarerockcontrastdramaticallyaUNESCOWorldHeritageSiteandnaturalbeautyPenguins,elephantsealsexistedinharmonywiththeirnaturalhabitantforthounsandsofyears1.FindthedetaileddescriptionofMacquarieislandinparagraph1andsummarizetheaspects?LocationShapeLandscapeInhabitantsharmony,butthen?Para.2-62.Readpara2-6andcompletetheflowchart.

Time(s)in1810Humanarrivedtolivetherebroughtratsandmicetoeatbird’seggsandattackbabybirds.brought___developedana________forthebirds,toointroduced____tobeasourceoff_____forhumancausesoile_____andparakeetsd__________in1891releasedv___tor_____alltherabbitscatskillednativebirdsu______60,000eachyear_________________inthe1970susedt____anddogsto_____thecatsincreasethep_________ofmouseandratusedp____anddogsinthe1980sin2006toremovealltheinvadingspeciesdeclaredpest-freeanditsecologyisontheroadtorecovery宣布无虫害，其生态正在恢复Time(s)in1810Humanarrivedtolivetherebroughtratsandmicetoeatbird’seggsandattackbabybirds.brought___developedan________forthebirds,toointroduced____tobeasourceof_____forhumancausesoil_____andparakeets____________in1891released____to_____alltherabbitscatskillednativebirds______60,000eachyear_________________inthe1970sused____anddogsto_____thecatsincreasethep_________ofmouseandratused____anddogsinthe1980sin2006toremovealltheinvadingspeciesdeclaredpest-freeanditsecologyisontheroadtorecoveryappetite食欲fooderosion侵蚀diedout灭绝virus病毒removeupto多达traps陷阱catchpopulationpoison毒药宣布无虫害，其生态正在恢复TheActions

caused

disastrouseffectsonecosystem.灾难性的almost200yearsTime(s)in1810Humanarrivedtolivetherebroughtratsandmicetoeatbird’seggsandattackbabybirds.brought___developedan________forthebirds,toointroduced____tobeasourceof_____forhumancausesoil_____andparakeets____________in1891released____to_____alltherabbitscausedsoil_____andparakeets____________inthe1970sused____anddogsto_____thecatsincreasethe_________ofmouseandratused____anddogsinthe1980sin2006to_____alltheinvadersdeclaredpest-freeanditsecologyisontheroadtorecoveryWhoisthechief(最主要的）invadingspecies?宣布无虫害，其生态正在恢复__________Para6:...wehumansoweittotheislandtogiveitahappyending.(Whoeverstartedthetroubleshouldendit!)解铃还须系铃人

3.From"Tragicstorytopest-freehappyendingaftermorethan200years,becauseofasmallevent,humanbeingshavepaidsuchahugeprice."Howcouldsimilarsituationsbeavoidedinthefuture?Post-reading:Thinkandshareprotectthenaturalecosystem;preventspeciesinvasioncausedbyhumansbeawareofthepotentialimpactonnature;liveintheharmonywiththenature;taketheroadofsustainabledevelopment;Toavoidsimilarsituationsinthefuture,weshould...保护自然生态系统要意识到对自然的潜在影响与自然和谐相处走可持续发展之路……ClearWatersandLushMountainsareasValuableasGoldandSliver.——XiJinping防止人类造成的物种入侵Q:Ashighschoolstudents,Whatcanwedotoprotectourenvironment?(Groupwork)plantmoreplantscollectwasteforrecyclingprevent

pouringwastewaterintoriver,lakeandfielddon’tpicktheflowersorsteponthegrassinpublic

tellpeoplefullyrealizetheimportanceofenvironmentprotectionthrougheducationreducetheuseofp