高二選擇性英語Unit5UsingLanguage（1）整體掌握小閱讀學(xué)案人教版英語24字整體教學(xué)學(xué)生版454

45420242025學(xué)年高二選擇性必修第一冊英語Unit5UsingLanguage（1）整體掌握小閱讀學(xué)案人教版英語24字整體教學(xué)教師版目錄目錄UsingLanguage◆讀前清障詞匯再現(xiàn)◆課文翻譯疏通理解◆課文助讀要點直擊

◆讀前清障詞匯再現(xiàn)Ⅰ.核心詞匯根據(jù)語境寫出正確的單詞1.the________industry化學(xué)工業(yè)2.________farming有機耕作3.enjoy________respect受到廣泛尊重4.needtimeto________information需要一些時間來消化信息5.Experienceis________forthisjob.對于這個工作，經(jīng)驗是非常重要的。6.________energy替代能源7.coverall________ofcitylife涵蓋城市生活的各個方面8.the________oftheproblem問題的根源9.abottleof________water一瓶礦泉水10.chemical________化學(xué)農(nóng)藥Ⅱ.拓展詞匯根據(jù)語境寫出相應(yīng)的派生詞1.①provide________foryou為你提供營養(yǎng)②________food營養(yǎng)食品2.①ata________of30metres在30米深處②takea________breath深深地吸了一口氣3.①an________differentmatter一件完全不同的事情②the________village整個村莊Ⅲ.重點短語1.____________相應(yīng)地；轉(zhuǎn)而；依次；輪流2.____________例如；比如3.____________做筆記4.____________對……造成損害5.____________至于6.____________關(guān)注7.____________富于；有豐富的……8.____________免受(影響、傷害等)9.____________隨著時間的推移10.____________轉(zhuǎn)向有機食品◆課文翻譯疏通理解讀文清障原文呈現(xiàn)課文翻譯①chemical/'kem?kl/adj.與化學(xué)有關(guān)的；化學(xué)的n.化學(xué)制品；化學(xué)品②organic/??'ɡ?n?k/adj.有機的；不使用化肥的；有機物的③pesticide/'pest?sa?d/n.殺蟲劑；除害藥物④widespread/'wa?dspred/adj.分布廣的；普遍的；廣泛的⑤overtime隨著時間的推移⑥bacterium/b?k't??ri?m/n.(pl.ria/ri?/)細菌⑦notonly...but(also)...不僅……而且……(連接并列成分)⑧inaddition另外，此外inadditionto除……之外(還有，也)⑨inturn相應(yīng)地；轉(zhuǎn)而；依次；輪流⑩digest/da?'d?est/vt.&vi.消化vt.領(lǐng)會；領(lǐng)悟?DDTn.滴滴涕(舊時尤用作農(nóng)業(yè)殺蟲劑)?asfor至于，關(guān)于?too...to...太……而不能……?nutrition/nju'tr??n/n.營養(yǎng)；滋養(yǎng)?essential/?'sen?l/adj.完全必要的；極其重要的beessentialto/for對……來說必不可少?mineral/'m?n?r?l/n.礦物；礦物質(zhì)?flavour(NAmEvor)/'fle?v?/n.味道；特點；特色?aswell也，又，同樣?alternative/??l't??n?t?v/n.可供選擇的事物adj.可供替代的；非傳統(tǒng)的?switchto轉(zhuǎn)變；轉(zhuǎn)向switchoff(用開關(guān))關(guān)掉；切斷(電源)?turnto轉(zhuǎn)向；求助于；致力于?grocery/'ɡr??s?ri/n.食品雜貨店；[pl.]食品雜貨?focuson關(guān)注；聚焦于?freeof無……的；擺脫了?meansn.手段；方法?instance/'?nst?ns/n.例子；實例；事例forinstance例如；比如?wheat/wi?t/n.小麥；小麥籽?batch/b?t?/n.一批abatchof一批?diverseadj.不同的；多種多樣的?depth/depθ/n.向下(或向里)的距離；深(度)?root/ru?t/n.根；根莖；根部；根源?entirely/?n'ta??li/adv.全部地；完整地；完全地entireadj.全部的；整個的，完全的?servethedemand滿足要求?nowherenear遠不及；離……很遠?meettheneed滿足要求?sufficientadj.足夠的；充分的CHEMICAL①VERSUSORGANIC②FARMINGChemicalpesticides③andartificialfertilisershavebeeninwidespread④useinfarmingsincethemiddleofthe20thcentury.Whentheywerefirstintroduced,manyfarmersweledthemasagreatwaytofightcropdiseaseandincreaseproduction.1Overtime⑤，however,whatsomescientistshavefoundisthattheirlongtermusecansometimesharmboththelandandpeople'shealth.Forexample,pesticidescandamagethelandbykillingnotonlyharmfulbacteria⑥andinsects,butalso⑦helpfulones.Inaddition⑧，thesechemicalscanstayinthesoilandundergroundwatersourcesforalongtime.Thisaffectsthecropsgrownonthelandand,inturn⑨，theanimalsandhumanswhodigest⑩them.Manypeopleworrythatthesechemicalsmaymakethemillandevencausecancer.Infact,somepesticideslikeDDT?havebeenprohibitedinmostcountriesbecauseofthedamagetheycausetopeopleandtheenvironment.Asfor?chemicalfertilisers,cropsgrownwiththemusuallygrowtoofastto?berichinnutrition?.Theymaylookbeautifulontheoutside,butinsidethereisusuallymorewaterthanessential?minerals?，andtheyoftenhavelessflavour?aswell?.Asanalternative?，somefarmershaveswitchedto?organicfarming,andmanycustomershaveturnedto?organicfoodwhentheyshopatthelocalgrocery?.Organicfarmingissimplyfarmingwithoutusinganychemicals.Organicfarmersfocuson?keepingtheirsoilrichandfreeof?diseasethroughnaturalmeans?.Forexample,manyorganicfarmersusenaturalwastefromanimalsasfertiliser.Thismakesthesoilintheirfieldsricherinminerals.Italsokeepstheair,soil,water,andcropsfreeofchemicals.Organicfarmersalsousemanyothermethodstoproducerichsoil.Theyoftenchangethekindofcropgrownineachfieldeveryyear.Forinstance?,theymaygrowcornorwheat?inafieldoneyear,andthengrowbeanstherethenext.2Whydifferentcropsaregrownisbecausetheyputimportantmineralsbackintotheground,makingitreadyforthenextbatch?ofcrops.Organicfarmersalsoplantdiverse?cropsthatusedifferentdepths?ofsoiltohelpkeepitrich.Forexample,peanutsgrowontheground'ssurface,butmanyothervegetablesputdowndeeproots?.3Thegoalofusingdifferentorganicfarmingmethodsistogrowgoodfoodwhileavoidingdamagetotheenvironmentortopeople'shealth.Somepeoplewouldprefertostoptheuseofmanmadechemicalsinagricultureentirely?.4Whatkeepsthemfromdoingsoisthefactthatchemicalfarmingservesthehighdemand?forfoodaroundtheworld.Organicfarmingisnowherenear?abletomeetthatneed?.5Therefore,thereisstillalongwaytofindasuitablesolutionthatputssufficient?foodonthedinnertablewhilekeepingpeopleandtheenvironmentashealthyaspossible.化學(xué)耕作和有機耕作自20世紀(jì)中期以來，化學(xué)農(nóng)藥和人工化肥在農(nóng)業(yè)中得到了廣泛使用。當(dāng)它們第一次被引進時，許多農(nóng)民歡迎它們作為一種對抗作物病害和增加產(chǎn)量的好方法。1.然而，隨著時間的推移，一些科學(xué)家發(fā)現(xiàn)，長期使用它們有時會損害土地和人們的健康。例如，農(nóng)藥不僅可以殺死有害的細菌和昆蟲，還可以殺死有益的細菌和昆蟲，從而破壞土地。此外，這些化學(xué)物質(zhì)會在土壤和地下水源中長期存在。這影響到在土地上生長的作物，進而影響到消化它們的動物和人類。許多人擔(dān)心這些化學(xué)物質(zhì)會使他們生病甚至致癌。事實上，像滴滴涕這樣的殺蟲劑在大多數(shù)國家已經(jīng)被禁止了，因為它們對人類和環(huán)境造成了破壞。至于化肥，通常施了化肥的農(nóng)作物生長得太快，無法提供豐富的營養(yǎng)。它們可能外表看起來很漂亮，但里面的水通常比必需的礦物質(zhì)多，而且味道也不太好。作為一種選擇，一些農(nóng)民轉(zhuǎn)向有機農(nóng)業(yè)，許多顧客在當(dāng)?shù)仉s貨店購物時轉(zhuǎn)向有機食品。有機農(nóng)業(yè)就是不使用任何化學(xué)物質(zhì)的簡單農(nóng)業(yè)。有機農(nóng)場主注重通過自然的方式保持土壤的肥沃和免受病害。例如，許多有機農(nóng)場主使用來自動物的天然糞便作為肥料。這使得他們地里的土壤礦物質(zhì)更豐富。它還使空氣、土壤、水和農(nóng)作物不受化學(xué)物質(zhì)的污染。有機農(nóng)場主也使用許多其他方法來使土壤肥沃。他們經(jīng)常每年改變每一塊地的作物種類。例如，他們可能一年在一塊地里種玉米或小麥，第二年在那里種豆子。2.種植不同的作物是因為它們把重要的礦物質(zhì)釋放回土壤，使其為下一批作物生長做好準(zhǔn)備。有機農(nóng)場主還種植多種作物，利用不同深度的土壤來幫助保持土壤肥沃。例如，花生長在地面上，但許多其他蔬菜扎根很深。3.使用不同的有機耕作方法的目的是種植好的食物，同時避免對環(huán)境或人的健康造成損害。有些人寧愿完全停止在農(nóng)業(yè)中使用人造化學(xué)品。4.阻止他們這樣做的原因是化學(xué)農(nóng)業(yè)滿足了世界各地對糧食的巨大需求。有機農(nóng)業(yè)遠不能滿足那樣的需求。5.因此，要找到一個合適的解決方案，使人們的餐桌上有足夠的食物，同時保持人們和環(huán)境盡可能地健康仍然有很長的路要走?！粽n文助讀要點直擊Step1skimming:文本整體理解：關(guān)注布局謀篇Task1:WarmingupWhatwayscanyouthinkoftoincreaseourcropharvest?__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Step2Scanning:文本整體理解：關(guān)注布局謀篇Task1Choosethebestanswer.Readthetextandchoosethebestanswertoeachquestion.()1．Whydidmanyfarmersweletheintroductionofchemicalfarming?A．Itcanfightcropdiseaseandincreaseproduction.B．Itdoesn'tharmthelandorpeople'shealth.C．Itcanhelpproducerichsoil.D．It'snotexpensive.()2．Whatconcernsmanypeopleabouttheuseofpesticides?A．Pesticidescandamagetheland.B．Chemicalscanstayinthesoilforalongtime.C．Pesticidescankillharmfulbacteriaandinsects.D．Chemicalsmaymakepeopleillandevencausecancer.()3．Whydoorganicfarmerschangethekindofcropgrownineachfieldeveryyear?A．Ithelpsputimportantmineralsbackintotheground.B．Itcanavoiddamagetotheenvironment.C．Itcanhelpincreaseoutput.D．Thewriterdoesn'ttellus.()4．Whycan'twestoptheuseofman-madechemicalsinagricultureentirely?A．Organicfarmingcostsusalotofmoney.B．Organicfarmingcanmeetpeople'sneed.C．Chemicalfarminghasbroughtushugeprofit.D．Chemicalfarminghelpsservetheneedforfood.【學(xué)結(jié)構(gòu)】Part1(Para.1&Para.2)The(1)_________________withchemicalfarming.Part2(Para.3)Whatorganicfarmingis.Part3(Para.4)Organic(2)_________________forproducingrichsoil.Part4(Para.5)_________________man-madechemicalsarestill