知行英語綜合教程1 Unit4課件

知行英語綜合教程1Unit4FirstSightBetterAcquaintanceFurtherDevelopmentCross-culturalCommunicationRealTime知行英語綜合教程1Unit4liiueostatseTask1Solvethefollowingcrosswordpuzzle.Forsomewords,thefirstlettersaregiven.Youmayrefertothetipsgiven.ACROSS3theparticulartasteofafoodordrink4verypleasanttotasteorsmell7thespecialfeelingthatisproducedbyaparticularfoodordrinkwhenyouputitinyourmouth8smellingortastingofspice;hot1achemicalorfoodthatprovideswhatisneededforplantsoranimalstoliveandgrowDOWN2aunitformeasuringtheamountofenergythatfoodwillproduce5(offood)hard,dryandeasilybrokenlikebiscuitsorpotatochips6thebasicfunctionofyournose1N4D65C7823F???utrintemellsripsyyspiclvoraClrioea知行英語綜合教程1Unit4Task2Thefollowingpicturesshowsomeimportantelementsofourfoodsystem.Matchthepictureswiththecorrespondingelements.1organicfood2fastfood3factory-farmedchickens4exhaustedsoilABDCACBD知行英語綜合教程1Unit41Itseemstomethatcorporationsarealwaystryingtogetkidstomaketheirparentsbuyunhealthyfood.KidsareledtobelievealltheadvertisingonTV.Littlekids,especially,areattractedbycolorfulpackagingandplastictoys.ImustadmitthatIusedtobeoneofthem.Ialsousedtothinkthatallofourfoodcamefromhappy,littlefarmswherepigsrolledinmudandcowsgrazedongrassallday.ReadingItWhat’sWrongwithOurFoodSystem?BirkeBaehr*WordsBetteracquaintanceadvertising

n.廣告宣傳especially

ad.特別；尤其；格外attract

v.吸引；引起……的注意packaging

n.包裝；包裹plastic

a.塑料（制）的n.[pl.]塑料；塑料制品admit

v.承認(rèn)；準(zhǔn)許……進(jìn)入mud

n.泥；泥漿graze

v.吃草1我覺得食品公司總是試著讓像我一樣的孩子要父母去買那些不健康食品。他們引導(dǎo)孩子們輕信所有的電視廣告。小孩子尤其會被彩色包裝和塑料玩具吸引。我必須承認(rèn)，我曾是他們中的一員，我也曾以為我們所有的食物都來自開心小農(nóng)場，那里每天豬在泥漿里打滾，牛遍地吃草。知行英語綜合教程1Unit42Ihavefoundoutthatthisisnottrue.IbegantolookintothisstuffontheInternet,inbooksandfilms,andinmytravelswithmyfamily.Idiscoveredthedarksideoftheindustrializedfoodsystem.Firstisthegenetically

engineered

seeds.Aseedismanipulatedinalaboratorytodosomethingnotintendedbynature,liketakingtheDNAofafishandputtingitintotheDNAofatomato.Theseedsarethenplantedandgrown.Thefoodtheyproducehavebeenproventocausecancerandotherproblemsinlabanimals.Peoplehavebeeneatingfoodproducedthiswaysincethe1990sandmostfolksdonotevenknowwhat’shappening.stuff

n.材料；東西；原料*industrializeda.工業(yè)化的*geneticallyad.在基因上engineer

v.設(shè)計(jì)；策劃n.工程師seed

n.種子*manipulatev.操縱；控制；影響laboratory

n.實(shí)驗(yàn)室intend

v.想要；打算；計(jì)劃prove

v.證明；證實(shí)cancer

n.癌，癌癥folk

n.人；人們2但我發(fā)現(xiàn)這不是真的。我開始在互聯(lián)網(wǎng)、書本、電影和與家人一起的旅行中查找真相。我發(fā)現(xiàn)了工業(yè)化食品體系的陰暗面。首先是轉(zhuǎn)基因種子。這些種子在實(shí)驗(yàn)室里經(jīng)過改造，讓它以違背自然的方式生長。比如提取魚類的DNA，把它植入到西紅柿的DNA中，然后種植這些種子，讓其生長。轉(zhuǎn)基因的食物經(jīng)用于動物實(shí)驗(yàn)證明會引發(fā)癌癥和其他問題。自20世紀(jì)90年代起，人們一直在吃這些轉(zhuǎn)基因的食物，而大多數(shù)人甚至都不知道怎么回事。知行英語綜合教程1Unit43Second,conventionalfarmersusechemicalBetterAcquaintancefertilizerstomakeplantsgrow.Theydothisbecausethey’vetakenawayallnutrientsfromthesoilbygrowingthesamecropoverandoveragain.Next,moreharmfulchemicalsaresprayedonfruitsandvegetablestokillweedsandbugs.Whenitrains,thesechemicalsflowslowlyintotheground,orrunoffintoourwaterways,poisoningourwatertoo.4SoIaskmyself,“HowcanIchangethesethings?”Awhileback,IwantedtobeanNFLfootballplayer.Now,Ihavediscoveredthatthere’samovementforabetterwaytoproduceourfoodandIhavedecidedthatI’dratherbeanorganicfarmerinstead.Hopefully,Iwillhaveagreaterimpactontheworldthanthatofafootballplayer.*conventionala.常規(guī)的；普通的chemical

a.化學(xué)的n.化學(xué)制品*fertilizern.肥料*nutrientn.營養(yǎng)；滋養(yǎng)物soil

n.泥土；土地；土壤harmful

a.有害的；可致?lián)p傷的spray

v.噴；（使）濺散*weedn.雜草；野草bug

n.蟲子flow

v.流動；循環(huán)waterway

n.水路；航道m(xù)ovement

n.（態(tài)度、看法或行為的）轉(zhuǎn)變；移動*organica.有機(jī)（體）的；有機(jī)物的impactn.影響；作用；沖擊；碰撞3第二點(diǎn)，在傳統(tǒng)種植方式中，農(nóng)民使用化肥促進(jìn)植物生長。農(nóng)民施肥是因?yàn)樗麄兡陱?fù)一年種植同樣的作物，已經(jīng)窮竭了土壤的所有養(yǎng)分。接下來，他們噴灑更多農(nóng)藥到水果蔬菜上，來殺死雜草和蟲子。下雨的時(shí)候，這些農(nóng)藥慢慢滲入土地，或流到我們的河流中，我們的水也被污染。4所以我問自己，如何才能改變這些狀況？就在不久前，我還想成為一個(gè)美國國家橄欖球聯(lián)盟的運(yùn)動員?，F(xiàn)在我發(fā)現(xiàn)有一場推動人們用更好的方法來生產(chǎn)食物的運(yùn)動。我已經(jīng)決定了，我更愿意成為一個(gè)有機(jī)農(nóng)業(yè)家，希望這樣我會比當(dāng)一名美式橄欖球運(yùn)動員能夠更好地對世界產(chǎn)生影響。知行英語綜合教程1Unit45Wecanallmakeadifferencebymakingdifferentchoices.Weshouldstartbybuyingorganicfoodandbuyingourfooddirectlyfromlocalfarmersorourneighborswhoweknowinreallife.Organicfoodissaferforusandbetterfortheenvironmentandanimals.Somepeoplesayorganicorlocalfoodismoreexpensive,butisitreally?WithallI’vebeenlearningaboutthefoodsystem,itseemstomethatwecaneitherpaythefarmer,orwecanpaythehospital.NowIknowdefinitelywhichoneIwouldchoose.Iwantyoutoknowthattherearefarmsouttherewhosecowsdoeatgrassandwhosepigsdorollinthemud,justasIthought.environment

n.環(huán)境；周圍狀況*definitelyad.明確地Farmerstheredon’tuseanyharmfulchemicalsorgeneticallyengineeredseeds.SometimesIgotoalocalorganicfarmandvolunteer,soIcanseeupcloseandpersonalwherethemeatIeatcomesfrom.IwantyoutoknowthatIbelievekidswilleatfreshvegetablesandgoodfoodiftheyknowmoreaboutitandwhereitreallycomesfrom.Iwantyoutoknowthattherearefarmers’marketsineverycommunity.那兒的農(nóng)民不使用任何有害的農(nóng)藥和轉(zhuǎn)基因種子。有時(shí)我會去本地的有機(jī)農(nóng)場做義工，所以我可以近距離地親眼看到我吃的肉來自哪里。我想讓大家知道，我相信如果孩子們對食物了解更多，知道它們來自哪里，他們就會愿意吃新鮮蔬菜和健康食物。我還希望大家知道在每個(gè)社區(qū)都有農(nóng)民集市。5通過做出與過去不同的選擇，我們都可以有所作為。首先，我們要購買有機(jī)食品，向當(dāng)?shù)剞r(nóng)民，或者從我們熟識的鄰居那兒直接購買食物。有機(jī)食品更加安全，對環(huán)境和動物更有益。有人說有機(jī)食品或者本地食物會比較貴，但事實(shí)是否如此呢？根據(jù)我所學(xué)到的關(guān)于食物體系的這些知識，我知道要么我們付錢給農(nóng)民，要么付給醫(yī)院?，F(xiàn)在我已經(jīng)明確知道怎么選擇了。我想讓大家知道還是有那樣的農(nóng)場，那兒的牛兒真的吃草，豬就在泥地里打滾，就如同我想象的那樣。知行英語綜合教程1Unit46Nottoolongago,myunclesaidthatheofferedmysix-year-oldcousincereal.Heaskedhimifhewantedorganiccerealorthesugarcoated

flakes.Thelatterseemsmoreattractivetolittlekidswithsweetflavorsandcolorfulcartoonsonitspackage,butmylittlecousintoldhisdadthathewouldratherhavetheorganiccereal.HemadethischoicebecauseherememberedwhatIsaidabouttheharmofsweetcereal.Thatishowwecanmakeadifference:onekidatatime.7Sonexttimeyou’reatthegrocerystore,thinklocal,chooseorganic,knowyourfarmerandknowyourfood.*cerealn.加工而成的谷類食物；谷物*flaken.小薄片；小碎片latter

a.后者的n.(the)后者flavor

n.味道cartoon

n.漫畫；動畫片grocery

n.食品雜貨*sugarcoatv.包糖衣于…6不久前，我叔叔說他給我六歲的堂弟吃麥片時(shí)，他問他是想要有機(jī)麥片還是糖衣玉米片。對小孩子來說，糖衣玉米片香甜的口味和包裝上五顏六色的卡通畫更具吸引力，但是小堂弟告訴他爸爸，他想要有機(jī)麥片。他這樣選擇是因?yàn)樗浀梦腋f過甜麥片是有害的。我們就可以這樣一次一個(gè)地讓孩子們改變。7所以下次你在商店購物時(shí)，請選擇本地的、有機(jī)的食物，認(rèn)識為你生產(chǎn)食物的農(nóng)民，了解你的食物。知行英語綜合教程1Unit4UnderstandingItTask1Readthetextandanswerthefollowingquestions.1Whatharmdoesgeneticallyengineeredfoodcauseaccordingtothewriter?2Whydoconventionalfarmersusechemicalfertilizers?3Whatdoesthewriterwanttodointhefuture?4Whydoesthewritersuggestwebuyorganicfood?5Howcanwepersuadekidstoeatfreshvegetablesandgoodfood?Itcancausecancerandotherproblemsinlabanimals.Becausetheyhavetakenawayallnutrientsfromthesoilbygrowingthesamecropoverandoveragain.Hewantstobeanorganicfarmersoastosolvetheproblemswithourfoodsystem.Becausehebelievesorganicfoodissaferforusandbetterfortheenvironmentandanimals.Weshouldletthemknowmoreaboutgoodfoodandwhereitreallycomesfrom.知行英語綜合教程1Unit4Task2Readthetextagainandcorrectthefollowingstatements.1Mostpeopleareawareoftheseriousdangersofgeneticallyengineeredfood.2Organicfoodismoreexpensivethanwhatwepaythehospital.3Onaconventionalfarm,cowseatgrassandpigsrollinmud.4Itisdifficulttobuyorganicandlocalfoodbecausefarmers’marketsarefew.5Mylittlecousinchoseorganiccerealbecauseithassweetflavorsandcolorfulcartoonsonitspackage.1Mostpeoplearenotawareoftheseriousdangersofgeneticallyengineeredfood.2Organicfoodismoreexpensive,butitissaferforus,sowepaythehospitalless.3Onanorganicfarm,cowseatgrassandpigsrollinmud.4Itisnotdifficulttobuyorganicandlocalfoodbecausetherearefarmers’marketsineverycommunity.5MylittlecousinchoseorganiccerealbecauseIhavetoldhimabouttheharmofsweetcereal.知行英語綜合教程1Unit4Task3Readthetextcarefullyandcompletethefollowingsentences.1UnhealthyfoodsattractkidswithalltheTV___________,______________and___________.2Thewriterfoundoutthedarksideofthe_______________________byinvestigatingtheproblemontheInternet,inbooksand_____,andinhis_______withhisfamily.3A(n)______________________ismanipulatedinalaboratorytodosomethingnotintendedby_______.4Conventionalfarmerssprayharmfulchemicals,sowhenitrains,theywillflowintothegroundorwaterwaysto_________________.5Organicfarmersdonotusechemicalfertilizers,geneticallyengineeredseeds,orharmfulchemicalstokill______and_______.advertisingcolorfulpackagingplastictoysindustrializedfoodsystemfilmstravelsgeneticallyengineeredseednaturepoisonourwaterbugsweeds知行英語綜合教程1Unit4LanguagePointstheactivityorbusinessofadvertisingthingsontelevision,innewspapersetc.廣告宣傳，做廣告；廣告業(yè)e.g.advertisingaimedat18-25yearolds以18至25歲人群為目標(biāo)的廣告宣傳e.g.Bothcandidatesarespendingmillionsontelevisionadvertising.thecontainerormaterialthataproductissoldin包裝e.g.plasticpackaging

塑料包裝advertisingpackagingWordstoagreeunwillinglythatsomethingistrueorthatsomeoneelseisright承認(rèn),供認(rèn),招認(rèn)（常為不情愿地）e.g.Youmaynotlikeher,butyouhavetoadmitthatshe'sgoodatherjob.e.g.DanaadmittedfeelinghurtbywhatIhadsaid.ifananimalgrazes,orifyougrazeit,iteatsgrassthatisgrowing（牛﹑羊等）吃青草；放牧（牛、羊等）e.g.Groupsofcattleweregrazingontherichgrass.e.g.Thesearethefieldswheretheyusedtograzetheirsheep.admitgraze知行英語綜合教程1Unit4intendLanguagePointsWordstohavesomethinginyourmindasaplanorpurpose打算;意欲;想要e.g.Iintendtospendthenightthere.e.g.Ididn'tintendhertoseethepaintinguntilitwasfinished.（deoxyribonucleicacid的縮寫）

asubstancethatcarriesgeneticinformationinthecellsofthebody脫氧核糖核酸（基因的基本成分）e.g.ThemenwillundergovoluntaryDNAtestingoftheirsaliva.toshowthatsomethingistruebyprovidingfacts,informationetc證明，證實(shí)e.g.Ishallprovetoyouthatthewitnessisnotspeakingthetruth.e.g.Heprovedhimself(tobe)abetterdriverthantheworldchampion.DNAproveachemicalorfoodthatprovideswhatisneededforplantsoranimalstoliveandgrow營養(yǎng)物,滋養(yǎng)物e.g.Theplantabsorbsnutrientsfromthesoil.nutrient知行英語綜合教程1Unit4impactLanguagePointsWordstheeffectorinfluencethatanevent,situationetchasonsomeoneorsomething（強(qiáng)烈的）作用，影響e.g.Herspeechmadeatremendousimpactoneveryone.e.g.Weneedtoassesstheimpactofclimatechange.自愿地或無償?shù)亟o予或提供（幫助﹑建議等）e.g.Ivolunteeredtoactasadriver.e.g.Shevolunteeredforreliefwork.thesecondoftwopeopleorthingsjustmentioned后者（與former對應(yīng)）e.g.Ofthetwobooks,Ipreferthelatter.e.g.Manysupporttheformeralternative,butpersonallyIfavorthelatter(one).volunteerlattertheparticulartasteofafoodordrink味道e.g.Thecheesehasastrongflavor.e.g.Addingsalttofoodimprovestheflavor.flavor知行英語綜合教程1Unit4LanguagePoints轉(zhuǎn)基因種子geneticallyengineeredseedPhrases&Expressionsdarksideevilorthreateningside陰暗面

e.g.Therewasadarkersidetohischaracter.tohaveanimportanteffectorinfluenceonsomethingorsomeone（對某人或某事物）有作用或影響e.g.Theseaairhasmadeadifferencetoherhealth.e.g.Whatevershedid,itmadenodifference.makeadifference有機(jī)食品organicfood對……產(chǎn)生影響haveanimpacton知行英語綜合教程1Unit4LanguagePointsPhrases&Expressionsusedtosaythatifonethingdoesnothappenthensomethingelsewillhaveto用于表示在兩個(gè)可能性中擇其一e.g.Ileftiteitheronthetableorinthedrawer.e.g.It'syourchoice!EithersheleavesorIwill!either…or…upcloseandpersonalintimately親近e.g.HegottoknowthePrimeMinisterupcloseandpersonal.e.g.Ifyouwanttogetupcloseandpersonalwiththeauthor,besuretovisithiswebsitelistedonthebackofthebook.atverycloserange近距離地e.g.Thetwokidsmovedupclosetogetherandfellfastasleep.e.g.Theylostupcloseto$1000.upclose寧愿;寧可;較喜歡e.g.IwouldratherhaveaquietnightinfrontoftheTV.e.g.I'dratherwalkthantakeabus.wouldrather知行英語綜合教程1Unit4LanguagePointsPhrases&ExpressionsPeoplehavebeeneatingfoodproducedthiswaysincethe1990sandmostfolksdon’tevenknowwhat’shappening.“havebeeneatingfood”是現(xiàn)在完成進(jìn)行時(shí)，它是動詞的一種基本時(shí)態(tài)，其構(gòu)成為：主語+助動詞（have/has）+been+動詞的現(xiàn)在分詞，表示從過去某時(shí)開始一直持續(xù)到現(xiàn)在的動作，并且可能還將持續(xù)下去。Sonexttimeyou’reatthegrocerystore,thinklocal,chooseorganic,knowyourfarmerandknowyourfood.在廣告和活動口號中，常常見到單詞的詞性被改變，通過單詞活用來吸引觀眾的注意力，給他們留下深刻印象。如蘋果公司的口號“ThinkDifferent（非同凡想）”,這里Different

是形容詞當(dāng)副詞用了。本句中，作者也是將local和organic作為名詞使用，獲得了較理想的排比和押韻效果。本句中flow或者runoff和poison

的動作是基本同時(shí)進(jìn)行的，但poison

是前者產(chǎn)生的結(jié)果，所以可以用現(xiàn)在分詞結(jié)構(gòu)做狀語表示結(jié)果，通常放在句子后部。e.g.Hiswifedied,leavinghimwiththreechildren.Whenitrains,thesechemicalsflowslowlyintotheground,orrunoffintoourwaterways,poisoningourwatertoo.知行英語綜合教程1Unit4Backgroundinformationfoodsystem食物系統(tǒng)。食物系統(tǒng)包含食物從田間地頭到餐桌所涉及的種植或養(yǎng)殖、收獲、加工、包裝、運(yùn)輸、銷售、消費(fèi)以及廢棄物處理的所有過程和環(huán)節(jié)。知行英語綜合教程1Unit4Backgroundinformation基因工程。指按照人們的愿望，進(jìn)行嚴(yán)格的設(shè)計(jì)，通過體外DNA重組和轉(zhuǎn)基因技術(shù)，賦予生物新的遺傳特性，創(chuàng)造出更符合人們需要的新的生物類型和生物產(chǎn)品。雖然基因技術(shù)可以培養(yǎng)出優(yōu)質(zhì)、高產(chǎn)的農(nóng)產(chǎn)品和畜牧產(chǎn)品，但是它對環(huán)境和健康可能會產(chǎn)生的不利影響也越來越受到人們的關(guān)注。geneticengineering知行英語綜合教程1Unit4Backgroundinformation常規(guī)農(nóng)業(yè)和有機(jī)農(nóng)業(yè)。常規(guī)農(nóng)業(yè)是當(dāng)前世界農(nóng)業(yè)在實(shí)施運(yùn)作上占主導(dǎo)地位的農(nóng)業(yè)發(fā)展模式，以系統(tǒng)的開放性、資源的高投入和生產(chǎn)的高效率為基本特征。與常規(guī)農(nóng)業(yè)不同，有機(jī)農(nóng)業(yè)在生產(chǎn)中完全或基本不用人工合成的肥料、農(nóng)藥、生長調(diào)節(jié)劑而采用有機(jī)肥滿足作物營養(yǎng)需求。conventionalfarmingandorganicfarming知行英語綜合教程1Unit4BackgroundinformationBirkeBaehr伯克·巴爾，美國學(xué)生，動物保護(hù)協(xié)會志愿者，9歲時(shí)開始關(guān)注可持續(xù)發(fā)展的有機(jī)農(nóng)業(yè)并參與宣傳。2010年他11歲時(shí)，受到TED的邀請發(fā)表了這篇題為

“What’sWrongwithOurFoodSystem?”的演講，從一個(gè)孩子的視角發(fā)表對我們食物系統(tǒng)的看法，指出工業(yè)化食物系統(tǒng)對人類健康和環(huán)境的危害，倡議人們購買本地生產(chǎn)的綠色食品，支持有機(jī)農(nóng)業(yè)的發(fā)展。知行英語綜合教程1Unit4BackgroundinformationTED

TED(指technology,entertainment,design，即技術(shù)、娛樂、設(shè)計(jì))是美國的一家私有非營利機(jī)構(gòu)，以其組織的TED大會著稱。每年3月，TED大會在美國召集眾多科學(xué)、設(shè)計(jì)、文學(xué)、音樂等領(lǐng)域的杰出人物，以演講來分享他們關(guān)于技術(shù)、社會、人的思考和探索。TED大會希望傳達(dá)這樣一個(gè)的信息，即優(yōu)秀的思想可以改變?nèi)藗儗@個(gè)世界的看法，使人們反思自己的行為。知行英語綜合教程1Unit4BackgroundinformationNFL國家橄欖球聯(lián)盟(NationalFootballLeague，NFL)是世界最大的職業(yè)美式橄欖球聯(lián)盟，也是世界最具商業(yè)價(jià)值的體育聯(lián)盟，由32支來自美國不同地區(qū)和城市的球隊(duì)組成。目前聯(lián)盟共有32支球隊(duì)，分為兩個(gè)聯(lián)會：美國美式橄欖球聯(lián)會和國家美式橄欖球聯(lián)會。知行英語綜合教程1Unit4BackgroundinformationCerealandflakesCereal可指一般谷物，而本文中的意思是營養(yǎng)麥片，是西式早餐中的常見食品，一般直接泡在水、牛奶或酸奶中吃，不加熱，吃的時(shí)候適當(dāng)加一些新鮮水果。也有干吃的，國外有些麥片即如同中國國內(nèi)的爆米花，可以空口吃。常見的麥片有玉米片

(cornflakes)、燕麥片(oatcereal)等。知行英語綜合教程1Unit4DoingItTask11Foodisessentialtohumansurvivalandhealth,butpeoplearegettingmoreandmoreworriedaboutthesafetyofourcurrentfoodsystem.Findinthetextthetwoseriousproblemsthatthewriterhasdiscovered.GeneticallychangedseedsUseofchemicals知行英語綜合教程1Unit42Expressyourfindingsbymakingstatementsaftertheexamplegivenbelow.EXAMPLE:Corporationsarealwaystryingtogetkidstomaketheirparentsbuyunhealthyfood.Ihavefoundout/discoveredthatcorporationsarealwaystryingtogetkidstomaketheirparentsbuyunhealthyfood.———————————————————————————Ihavefoundoutthatgeneticallyengineeredfoodshavebeenproventocausecancerandotherproblemsinlabanimals.Ihavediscoveredthatpeoplehavebeeneatinggeneticallyengineeredfoodsincethe1990sandmostpeopledon’tknowwhat’shappening.Ihavefoundoutthatconventionalfarmersusealotofchemicalfertilizersbecausethesoilhasnonutrients.Ihavediscoveredthatchemicalssprayedonfruitsandvegetablesflowintothegroundorrunintoourwaterways,pollutingourwater.知行英語綜合教程1Unit43Haveyoudiscoveredmoreproblemswithourfoodsystembesidesthosediscussedinthetext?Shareyourfindingsinsmallgroupsandtrytousethesentencepattern“Ihavefoundout/discoveredthat…”.Chooseonestudenttorecordforeachgroup.Ihavediscoveredthatonafactoryfarm,animalsareill-treated.Largenumbersofanimalsareshutinsidetogetherwithverylittlesunshineandfreshair.知行英語綜合教程1Unit44DiscussingroupstofindoutsuggestionstosolvetheproblemsrecordedinStep3.————————————————————Ihavediscoveredthatonafactoryfarm,animalsareill-treated.Largenumbersofanimalsareshutinsidetogetherwithverylittlesunshineandfreshair.Thegovernmentshouldsetregulationsandstandardstoinspectfoodproductionandensurefoodsafety.知行英語綜合教程1Unit4Task21Findinthetextthesentencesthatexpressopinionsorgiveadviceonourfoodsystemandwritedownthequestionsthatcanbeusedtoaskabouttheseopinions.Youmayrefertotheexpressionsbelow.————————————————————EXAMPLE:Question:Whatdoyouthinkofthosefoodcorporations?Opinion:Itseemstomethatthosecorporationsarealwaystryingtogetkidstomaketheirparentsbuyunhealthyfood.Askingforopinions◎What’syouropinion(view)of…?◎Whatdoyouthinkof…?◎Howdoyousee…?◎Whatshould…?Givingopinionsoradvice◎Ithinkthat…◎Ibelievethat…◎Itseemstomethat…◎Weshould…Question:Whatshouldwedotosolvethisproblem?Opinion:Weshouldstartbybuyingorganicfoodandbuyingourfooddirectlyfromlocalfarmersorourneighborswhoweknowinreallife.12Question:Howdoyouseetheorganicfarm?/What’syouropinionoftheorganicfarm?Opinion:Iwantyoutoknowthattherearefarmsouttherewhosecowsdoeatgrassandwhosepigsdorollinthemud.知行英語綜合教程1Unit4Host:Goodevening,Birke.Welcometoourtalkshow.Birke:Goodevening,Jimmy.Host:Inrecentyears,thebenefitsanddangersofgeneticallyengineeredfoodhavebecomethesubjectofheateddebate.Whatdoyou1)___________it?Birke:Well,Ibelievethatgeneticengineeringis2)________________________.Host:Whatdangersdoesitbring?Birke:Geneticallyengineeredseedsareprocessedinalaboratory,andthenplanted.Ithasbeenproventhatfoodproducedwiththistechnologycan3)_______________.

What’sworse,itseems2SupposethewriterofthetextBirkeisinvitedtoaTVtalkshowandaskedtogivehisopinionsontheproblemofgeneticallyengineeredfood.Completethefollowingconversationbychoosingthegivenexpressions.Youcanrefertohisviewinthetext.———————————————————————————makeadifferencenotintendedbynatureorganicfoodupcloseandpersonalgrazeongrasscausediseasesthinkoffarmers’marketsthinkofnotintendedbynaturecausediseases知行英語綜合教程1Unit4tomethatmostpeopledon’tevenknowwhat’shappening.Host:Whatdoyouthinkisthemostimportantthingthatpeoplecandotoavoidthedangers?Birke:Wecan4)__________________bychoosing5)_____________.Weshouldalsotrytobuyourfoodfromlocal6)_________________.Ifyouhaveachancetoseetheorganicfarm7)_____________________,youmayfindtherecowsdo8)_______________andpigsdorollinthemud.2SupposethewriterofthetextBirkeisinvitedtoaTVtalkshowandaskedtogivehisopinionsontheproblemofgeneticallyengineeredfood.Completethefollowingconversationbychoosingthegivenexpressions.Youcanrefertohisviewinthetext.———————————————————————————makeadifferencenotintendedbynatureorganicfoodupcloseandpersonalgrazeongrasscausediseasesthinkoffarmers’marketsmakeadifferenceorganicfoodfarmers’marketupcloseandpersonalgrazeongrass知行英語綜合教程1Unit43Workinpairs.Role-playaconversationaccordingtothesituationinStep2.Whynotrole-playtheconversationinfrontoftheclass?知行英語綜合教程1Unit4Task31Inthetext,thewritertalksaboutbothconventionalfarmingandorganicfarming.Matchthetwofarmingmethodswiththecorrespondinginformation.ConventionalfarmingOrganicfarmingdoesnotusegeneticallyengineeredseedsABuseschemicalfertilizersDtreatsanimalswellCdoesnotusechemicalsEsprayschemicalstokillweedsandbugs知行英語綜合教程1Unit42Workinpairstofindouttheadvantagesanddisadvantagesofbothconventionalfarmingandorganicfarming.Recordwhatyouhavefoundandcompletethefollowingtable.ConventionalfarmingOrganicfarmingAdvantages?Producemorecrops?ProducemorenutritiousfoodDisadvantages?Moreharmfultotheenvironment?Cropscatchdiseaseseasily?Controlspestsandweedsmoreeffectively?Saferforhumansandtheenvironment?Moreharmfultohumanhealth?Moreexpensive知行英語綜合教程1Unit43Workinpairs.Makeshortconversationstocompareconventionalfarmingandorganicfarmingaftertheexamplegivenbelow.1A:Unlikeorganicfarming,conventionalfarminguseschemicalfertilizers.Whatdoesthismeantoourenvironment?B:Conventionalfarmingismoreharmfultosoilthanorganicfarming.2A:Unlikeconventionalfarming,organicfarmingdoesnotusechemicals.Whatdoesthismeantoourenvironment?B:Organicfarmingisnotasdangerousasconventionalfarmingtotheenvironmentandhumanhealth.Next

EXAMPLE:A:Unlikeconventionalfarming,organicfarmingdoesn’tusegeneticallyengineeredseeds.Whatdoesthismeantoourhealth?B:Organicfoodissaferforusthanconventionalfood.—————————————————————Tips◎XismoreharmfultosoilthanY.◎XpollutestheenvironmentmorethanYdoes.◎XisnotasdangerousasYtotheenvironmentandhumanhealth.知行英語綜合教程1Unit43Workinpairs.Makeshortconversationstocompareconventionalfarmingandorganicfarmingaftertheexamplegivenbelow.3A:Unlikeconventionalfarming,organicfarmingtreatsanimalswell.Whatdoesthismeantoourhealth?B:Thequalityoforganicfoodismuchbetterthanthatofconventionalfood.4A:Unlikeorganicfarming,conventionalfarmingspraysharmfulchemicalstokillweedsandbugs.Whatdoesthismeantoourenvironment?B:Conventionalfarmingpollutestheenvironmentmorethanorganicfarmingdoes.EXAMPLE:A:Unlikeconventionalfarming,organicfarmingdoesn’tusegeneticallyengineeredseeds.Whatdoesthismeantoourhealth?B:Organicfoodissaferforusthanconventionalfood.—————————————————————Tips◎XismoreharmfultosoilthanY.◎XpollutestheenvironmentmorethanYdoes.◎XisnotasdangerousasYtotheenvironmentandhumanhealth.Previous

知行英語綜合教程1Unit44Workinpairs.Onestudentactsasasupporterofconventionalfarmingandtheotherabelieveroforganicfarming.Role-playaconversationaccordingtotheinstructionsgivenbelow.☆Makeanintroductiontotheadvantagesofconventionalfarming.☆I(lǐng)nquireaboutthefarmingmethodthatStudentBsupports.☆Pointoutthedisadvantagesoforganicfarming.☆Pointoutthedisadvantagesofconventionalfarming.☆I(lǐng)ndicatetheadvantagesoforganicfarming.☆Suggestashiftfromconventionalfoodtoorganicfood.PositiveNegative知行英語綜合教程1Unit44Workinpairs.Onestudentactsasasupporterofconventionalfarmingandtheotherabelieveroforganicfarming.Role-playaconversationaccordingtotheinstructionsgivenbelow.PositiveNegativeA:Wehavefoundthatconventionalfarmingproducesmorecropsbyusingchemicalfertilizers.B:Right,butuseofchemicalswilldoharmtoourhealthandpolluteourenvironment.A:Ifnotconventionalfarming,whatfarmingmethoddoyouthinkweshouldhave?B:Ibelieveweshouldhaveorganicfarming.Itdoesnotusechemicals,soitissafertohumanhealthandtheenvironmentandorganicfoodismorenutritious.A:That’strue,butweknowthatorganicfarmingproduceslesscropsandorganicfoodismoreexpensive.B:Expensive?Itseemstomethatitcostsmoremoneytotreatdiseasesanddealwithpollutioncausedbyconventionalfarming.知行英語綜合教程1Unit4WritingItTask1Readthefollowingsentencesandfigureoutwhatarebeingcomparedineachsentence.1Organicfoodissaferforusandbetterfortheenvironmentandanimals.2Somepeoplesayorganicorlocalfoodismoreexpensive.3Thesugarcoatedflakesseemmoreattractivetolittlekidsthanorganiccereal.1Organicfoodiscomparedwithconventionalfood.2Organicorlocalfoodiscomparedwithconventionalfood.3Organiccerealiscomparedwiththesugarcoatedflakes.知行英語綜合教程1Unit4AgroupofSwissscientistscomparedtheeffectsoforganicandtraditionalfarmingmethodsoveraperiodofmorethan20years.Thestudyfoundthattheorganicfieldsproducedfewercropsthantheotherfields.However,thefarmersusedlessfertilizerandenergyontheorganicfield.Thescientistssaidtheorganicfieldshadmorenutrientsthantheotherfields.Task2Rewritethefollowingparagraphbyusingcomparativesentenceswherenecessary.AgroupofSwissscientistscomparedtheeffectsoforganicandtraditionalfarmingmethodsoveraperiodofmorethan20years.Thestudyfoundthattheorganicfieldsproducedfewcrops,whilefieldsusingtraditionalfarmingmethodsproducedalot.However,thefarmersusedlittlefertilizerontheorganicfieldsandotherfieldsalot.Thescientistssaidtheorganicfieldshadnutrientsinthesoilandotherfieldshadfew.Click知行英語綜合教程1Unit4Task3Comparisonsareusuallymadebydescribingdifferentaspectsofthings.Thefollowingaresomeaspectsthatyoumaymentionwhencomparinglocalfoodandnon-localfood.Pleasecompletethetable.LocalfoodNon-localfoodPlaceoffarmingclosertothecommunityfarawayFarmingmethodusuallyorganicProcessinglesspackagingDistributionfromfarmtotabletransportedfromfarawayFoodqualitynotfresh,unhealthyEffectontheenvironmentbeneficialusuallyconventionallotsofpackagingfresh,healthyharmful知行英語綜合教程1Unit4Task4Writeanessayofabout100wordsonlocalfoodandnon-localfoodbasedonTask3.Trytousecomparativesentences.Nowalot