2022秋新教材高中英语 Unit 3 Conservation Period 2 Lesson 1 The Sixth Extinction课件北师大版选择性必修第一册-第一文库

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UNIT3CONSERVATION课前自主预习¤重点单词8．________________adj.濒危的9．________________adj.太阳光(能)的10．________________vi.&vt.(使)孵化11．________________vt.(使)恢复¤重点词块8．inshort…________________9．accordingto________________10．takesteps______________________11．betoblame________________12.beatrisk______________________¤重点句式2．(P53)________________________________humanactivityhasnegativelyaffectedallotherspeciesonEarth,includinganimalsandplants.很明显，人类活动对地球上所有其他物种，包括动物和植物都产生了负面影响。【答案】Itisclearthat3．(P53)Withoutforest,we________________noairtobreathe.没有森林，我们就没有呼吸的空气。【答案】wouldhave¤课文预读()3.HumanactivitieshavesofarnegativelyaffectedlifeonEarth.()4.Lifewillalmostdieoutinthesixthmassextinction.()5.Ourworldandourlivesdependonthebalanceinnaturebetweenanimalsandplants.【答案】3－5TTTⅡ.阅读理解()1.Whydoestheauthormentiontheextinctionsinhistoryinthefirstparagraph?A．Toshowustheterribledisastersformankind.B．Totellustheclimate’simpactonwildlife.C．Tointroducethetopicofthistexttothereaders.D．Towarnusofthepotentialdisasterstomankind.【答案】C()2.Whatworriesusmostaccordingtotheauthor?A．Thedestructionofourhabitats.B．Therapidprogressoflifeextinction.C．Theenvironmentalpollution.D．Theimbalanceofnature.【答案】B()3.Whatcanweinferfromthethirdparagraph?A．Humanbeingsarecloselyrelatedtonature.B．Mostlivingthingswilldieoutinthefuture.C．Noforestwillexistontheearthinthefuture.D．Oxygenwillsoondisappearontheearth.【答案】A()4.Whatdoestheauthorintendtodointhelastparagraph?A．Toshowuswhattodotoavoidthesixthdistinction.B．Totelluswhattodotoconserveourenvironment.C．Toencourageustosavemoreenergyinourlife.D．Toexplainwhytoprotectthenaturalenvironment.【答案】A()5.Whatistheauthor’sattitudetowardsavoidingthesixthextinction?A．Pessimistic.B．Uncertain.C．Ambiguous.D．Optimistic.【答案】D课堂新知讲练1．wipeout彻底毁灭(P52)Extinctions,whereentirespeciesarewipedout,arenotunusualinourEarth’shistory.【翻译】物种灭绝，即整个物种的完全消失，在地球历史上并不罕见。【语言提升】wipeout是个多义词语，可以表示：(1)彻底消灭，全部摧毁(具体的物品)Thediseasethreatenstowipeouttheentirepopulation.这种疾病有可能毁灭整个种群。Thewh