外研版（2019）选择性必修 第二册Unit 5 A delicate world Developing ideas 语言点 课件（共33张）.pptx

Unit5UnderstandingideasMACQUARIEISLAND:fromChaostoConservation麦夸里岛：从混乱不堪到精心保护阅读课件

ToconcludethewholeprocessabouthowMacquarieIslandwasdestroyed.Tolearntoretellthepassagebyusingsomephraseswhichtalkaboutcauseandeffect.TothinkdeeplyabouttheeffectofthesehumanactivitiesonMacquarieIslandandcallonpeopletoprotectourdelicateworld.Learningobjectives

Wordandexpressionshalfwayadj.中间的，半途的50dramaticallyadv.显著地50heritagen.遗产；传统50inhabitantn.栖居的动物50penguinn.企鹅50habitatn.栖息地50ratn.大老鼠50subsequentlyadv.后来，随后50appetiten.胃口，食欲50multiplyv.（使）大大增加，倍增50vegetationn.植物，草木（总称）50erosionn.侵蚀50parakeetn.长尾（小）鹦鹉51chaosn.大混乱；紊乱51conservationn.保护51virusn.病毒51decreasev.（使）变小，减少51trapn.夹子，陷阱51departuren.离开51immunityn.免疫力51explodev.突然增加51collapsev.倒坍；塌下51substantialadj.大量的，多的51incidentn.事件51interventionn.干预，介入51owev.应该做；对...负有...的义务51postscriptn.附言51pestn.有害小动物；害虫51ecologyn.生态51

Whatdoyouthinkofourearthsecosystem?Warming-up

Whenwearetalkingaboutthe?ecosystem,mostofuswouldonlythinkaboutanimalsandplants.Butthetruthisourdailyactivitiesareplayingavitalroleinnaturejustlikeeverythingelse.

HumansarepartofEarth’secosystems.Humanscanaffectecosystemsinpositiveandnegativeways.Forex