2022-2023学年仁爱版英语九年级上册-Unit-2

Unit2.2Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cities,pollute,healthproblemsfactories,thelandandtheair,deadInourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?cutdown,millionsof,takeawaytheearth,becomedesertWatchthevideoanddiscusswhatyouhavelearntfromit.Listenandanswerthequestions1.What’stheweatherliketoday?It’sbad.Thewindissostrong.Andthesandreallyhurtsface.2.Whatcausesthesesandstorms?Peoplehavecutdowntoomanytrees.Asaresult,alotofrichlandhaschangedintodesert.3.Dowestillneedtodosomethingtoprotecttheenvironment?Yes,wedo.Althoughwehavebuilt“TheGreenGreatWall”,westillneedtodosomethingtoprotecttheenvironment.conj.虽然，尽管，即使n.沙somebody,someone,something,somewhereanybody,anyone,anything,anywherenone,nobody,nothing,nowhereeverybody,everyone,everything,everywhere一般情况下用于肯定句一般情况下用于否定句和疑问句表否定含义可用于各种句式theindefinitepronounandadverb1.Ihave____totellyou.A.importantsomethingB.somethingimportantB形容词修饰不定代词和不定副词时，要放在不定代词/不定副词之后Doyouknow?2.Everybody___readyforthematch.A.isB.areA不定代词作主语时，谓语动词要用单数。Watchthevideoanddiscusswhatyouhavelearntfromit.1.Isozonelayerimportantorunimportant?It'sveryimportant.2.Cantheozonelayerprotectus?Yes.3.Whathappenedtoitnow?Thereisabigholeintheozonelayer.4.What'stheeffectofit?It'sharmfultoallthelivingthings,especiallytohumansforitdoesharmtooureyesandskin.臭氧层Ozoneisaspecialkindofoxygen.Itcanprotecttheearth.氧气Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?oxygenaspecialkindofoxygencalled“ozone”(O3)averybigholeintheozonelayer,toomuchharmfulradiationfromthesun放射，放射物Inourdailylife,weshouldfacemoreenvironmentalproblems.Canyousaysomethingaboutthem?CO2carbondioxideincreasealot,forma“blanket”,theheatfromthesuncan’tescape.二氧化碳渗出；逃跑；逃脱毛毯，毯子causetheleveloftheseatorisecalled“thegreenhouseeffect”or“globalwarming”温室效应1.Read1a.2.Memorizetheusefulexpressionsandkeysentenceswhichwelearntoday.3.FinishSectionAinyourworkbook.4.PreviewSectionB.Homework1.Memorizetheusefulexpressionsandkeywordswhichwelearntoday.2.PreviewUnit2Topic2-SectionD.Bye-bye!