Unit 5 Working the Land Using language 課件-高中英語人教版（2019）選擇性必修第一冊

Unit5WORKINGTHELANDSectionCUsingLanguageCONTENTSLeading-inWhile-classAfter-classPart1Part2Part3Part.1Leading-inLeadingin1.Lookatthetitleofthepassageandtrytoguesswhatwillbetalkedinthepassage.2.Ifyouwereaskedtowritethepassageunderthistitle,whatisyourstructure?LeadinginChemicalfarmingVsOrganicfarmingChemicalfarmingorganic

farmingadvantagesdisadvantagesadvantagesdisadvantagesMy

choice/attitudePart.2While-classWhile-class核心詞匯教材原句Thisaffectsthecropsgrownonthelandand,inturn,theanimalsandhumanswhodigestthem.這影響了生長在土地上的作物，進而影響了消化它們的動物和人類。1inturn相應地；轉而；依次；輪流Thisinturnattractsmoreusersandadvertisers，andsoon.這反過來又吸引了更多的用戶和廣告商等。Wewillexamineeachofthesemethodsinturn.我們將依次逐個分析這些方法?！練w納拓展】taketurnstodo/indoingsth.輪流做某事It’sone’sturntodosth.輪到某人做某事了。byturns輪流地，交替地。While-class教材原句Asanalternative,somefarmershaveswitchedtoorganicfarming...

作為另一種選擇，一些農民轉向有機農業(yè)……2alternativen.&adj.（1）n.可供選擇的事物Thereisanalternativethatshouldbewelcometoall.

還有一個替代方案，可能所有人都會歡迎。

【歸納拓展】havenoalternative/choicebuttodo...can’tchoosebuttodo...Ihadnoalternativebuttoaccepttheoffer.我除了接受該項提議之外，別無選擇。（2）adj.（僅用于名詞前）可供替代的，可供選擇的；非傳統(tǒng)的alternativeenergy替代性能源alternativeways/approaches/methods其他的方法alternativesuggestions可供選擇的建議除做……之外別無選擇While-class教材原句Organicfarmersfocusonkeepingtheirsoilrichandfreeofdiseasethroughnaturalmeans.有機農場主注重通過自然的方式保持土壤的肥沃和免受病害。3focuson關注，聚焦于搭配：focusone’sattention/mindon集中某人的注意力/心思于……Thediscussionfocusesonthedeathrateintrafficaccidents.此次討論集中在交通事故的死亡率上。Iregretnothavingfocusedmymindonmystudy.我后悔沒把心思放在學習上。Whensomeonedeliversaspeech，youmustfocusonunderstandinghismainideas.當有人講話時，你必須集中注意力理解他的主要思想?！練w納拓展】fixone’sattentionon把某人的注意力集中于concentrateon集中（注意力、精力）于payattentionto注意putone’sheartinto全神貫注于While-class

教材原句Organicfarmersalsoplantdiversecropsthatusedifferentdepthsofsoiltohelpkeepitrich.有機農場主還種植多種作物，利用不同深度的土壤來幫助保持肥沃。4depthn.向下（或向里）的距離；深（度）搭配：indepth全面，深入，詳細atadepthof30metres在30米的深處ametre/footindepth一米/一英尺深Ihaven’tlookedatthereportindepthyet.我還沒仔細看這份報告?！驹~語積累】【單詞助記】adjdeephighwidelongstrongbroadn.depthheightwidthlengthstrengthbreadthn.deepenheightenwidenlengthenstrengthenbroadendeepadj.深的.deeplyadv.很深地；深刻地+-ly+-endeepenv.變深

depthn.深(度)+-thWhile-class教材原句Organicfarmingisnowherenearabletomeetthatneed.

有機農業(yè)遠不能滿足那樣的需求。5nowherenear遠不及；離……很遠Heshouldbeletnowherenearthejob.不能讓他有機會接近這個職位?！驹~語積累】nowhereadv.無處；任何地方都不n.

無處；任何地方；無名之地Therewasnowhereformetosit.我無處可坐。Houseshadsprungupoutofnowhereonthehills.山丘上突然冒出一幢幢的房子。完成句子(1)Itwas

（遠不如）aspainfulasDavidhadexpected.(2)I’ve

（肯定不夠）forthefare.(3)ThisanimalisfoundinAustralia，and

（別處沒有）.nowherenearnowhereelsenowherenearenoughWhile-class重點句式教材原句Whatkeepsthemfromdoingsoisthefactthatchemicalfarmingservesthehighdemandforfoodaroundtheworld.

阻止他們這樣做的原因是化學農業(yè)滿足了世界各地對糧食的巨大需求。【句式分析】本句中that引導同位語從句，對fact的具體內容進行解釋說明。同位語從句（1）可以跟同位語從句的名詞通常有news，idea，fact，promise，question，doubt，thought，hope，message，suggestion，words（消息），possibility等。（2）引導同位語從句的詞常有連詞that，whether，連接副詞how，when，where等。

（注：if，which不能引導同位語從句）Iheardthenewsthatourteamhadwon.我聽到了我們隊獲勝的消息。Hemustanswerthequestionwhetherheagreestoitornot.他必須回答他是否同意這樣一個問題。While-classorganicfarmingchemicalfarmingorganicfarmingorganicfarmingchemicalfarmingorganicfarmingWhile-classStepIITestourpredictionReadthetextquicklyandsilentlyandtrytofindwhatisthemainideaofeachparagraph.Andthendrawthemapofthestructure.Para.1________________________________________________________Para.2_____________________________________________________________Para.3________________________________________________________Para.4_____________________________________________________________Para.5_____________________________________________________________Chemicalfarminghelpfightcropdiseaseandincreaseproduction.(advantage)Threedisadvantagesofchemicalfarming.(disadvantages)Thedefinitionoforganicfarmingandoneofitsadvantages.(advantage)Otherdifferentmethodsoforganicfarmingandtheiradvantages.(advantages)

Thedisadvantageoforganicfarmingandshowtothereaderstheattitudeofthewriter.(disadvantage&attitude)While-classChemicalfarmingVsOrganicfarmingChemical

farmingorganic

farmingadvantagedisadvantagesadvantagesdisadvantageMy

choice/attitudeWhile-classStepIIIReadingfordetailsReadthetextcarefullyandcompletethetable.ChemicalfarmingadvantageAgreatwayto___________________________.disadvantagesKillnotonly______________butalso____________.Affectnotonly_____________butalso___________.Cropsarelackingin______________.OrganicfarmingadvantagesThesoilisrichin____________.Keep_________________freeofchemicals.Avoiddamageto_______________________.disadvantageNowherenearableto______________________.Thewriter’sattitudeHe/Sheisfor_____________.Butthereisstillalongwayto_______________________.While-classChemicalfarmingadvantageAgreatwaytofightcropdiseaseandincreaseproduction.disadvantagesKillnotonly

harmfulbacteriaandinsects

butalso

helpfulones.Affectnotonly

thecrops

butalsotheanimalsandhumanswhodigestthem.Cropsarelackinginnutrition.OrganicfarmingadvantagesThesoilisrichin

minerals.Keeptheair,soil,waterandcropsfreeofchemicals.Avoiddamagetotheenvironmentortopeople’shealth.disadvantageNowherenearabletomeettheneed.Thewriter’sattitudeHe/Sheisfororganicfarming.Butthereisstillalongwaytofindasuitablesolution.Part.3After-classAfter-classStepVWritinganargumentativeessaygivingyouropiniononchemicalororganicfarming.Task1Completetheoutlinebelow.Topicsentence:Inmyopinion,___________farmingispreferableto__________farmingbecause________________________________________Point1___________________________________________________________(Detail)________________________________________________________Point2___________________________________________________________(Detail)_____________________________________