初三英語chapter1知識(shí)精講 上海牛津版

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1、初三英語chapter1知識(shí)精講一.本周教學(xué)內(nèi)容：9Bchapter1ReadingcontentauthorguideconsumeratmosphereozonethreatenvironmentTheGreenhouseEffectwarmthlifelesscarbondioxidefuelpetrolleveldrownlayeroccurprotectivespraycanerosionsoilfloodingfloodmassivebillioncrashwreckedaccidentallypedes

2、trianmalariasoundsubstancenitrogenremovaldamagen.Don’tyourealizethedamagethesechemicalsaredoingtoourenvironment?v.Takecarenottodamagethecomputer.adj.damagingUnemploymenthashadadamagingeffectonus.destructionthethreatofnucleardestructiondestructiveJealousyisavery

3、destructiveemotion.destroyTheschoolwascompletelydestroyedbyfire.protect…from…Theozoneplayerprotectsusfromthesun.Thegovernmentplanstospendamassiveamountofmoneyonprotectingourcity’senvironmentfrompollution.keep…from…Theatmospherekeepsmuchofthewarmthfromgettingout

4、.burn…upThefirealmostburnseverythingup.keepinTheatmosphereiskeepingintoomuchheat.vitalItisvitalthatwedosth.tosavetheearth.Itisvitaltodosth.tosavetheearth.firstofallFirstofall,weshouldprotectourenvironment.actn.Thisisakindofcriminalact.v.Wemustacttoendthewar.Ist

5、artedactingwhenIwas12yearsold.letinLockthedoor.Don’tletthethiefin.takeinTreestakeinCO2.LanguageSolar-poweredvehicleaverageoneanotherdurianWhy…?Because…Whyistherenoelectricitythismorning?Becausethereisastormlastnight.Becauseoflastnight’sstorm.一、why能引導(dǎo)下列幾種從句：1.　主

6、語從句WhyhetookChinesenationalityin1901isaquestionthatinterestsus.他為什么在1901年取得中國(guó)國(guó)籍，這是一個(gè)使我們很感興趣的問題。2.賓語從句Heaskedherwhyshewasdoingthat.他問她為什么要那樣做。3.表語從句That'swhyI'vecometoseeyou.　這就是我來見你的原因。4.狀語從句Nomatterwhyshebecameangrywithyou,youshouldapologizetoher.不管她為什么對(duì)你生氣，你也

7、應(yīng)當(dāng)向她道歉。二、why作疑問詞時(shí)，可以用來向?qū)Ψ絾柤霸?，可以用Why?或Whynot?二者都是省略句。分述如下：1.“Why?”用來針對(duì)肯定的內(nèi)容發(fā)問。例如：A:Whatareyougoingtodotomorrow?B:Nothingmuch.Why?(=Whydoyouaskmethat?)2.Whynot?用來針對(duì)否定的內(nèi)容發(fā)問：①對(duì)一般疑問句的否定回答進(jìn)一步詢問原因。例如：A：Doyouoftengotoschoolbybike?B:No,Idon't.A:Whynot?(=Whydon'tyougoto

8、schoolbybike?)三、why除了用作疑問句之外，還可以用作引導(dǎo)詞（又稱感嘆句）放在句首或句中作插入語，表示驚奇等各種各樣的情緒，不譯為“為什么”，根據(jù)上下文它可以有“喲，啊呀，哎呀，嗨，噢，呃，啊唷”等不同譯法。例如：①“....”“NextFriday?Why,what'shappening?”“……”“下星期五？啊，有什么事嗎？”