2020_2021学年新教材高中英语Unit5WorkingtheLandUsingLanguage课件新人教版必修1202005270560.ppt
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1、Unit5WorkingtheLandUsingLanguage.根据语境及汉语提示写出正确的单词根据语境及汉语提示写出正确的单词1._(化学的化学的)change2._(减轻减轻)thesufferings3.outof_(贫穷贫穷)4._(有机的有机的)farming5.a_(分布广的分布广的,流行的流行的)diseasechemicalalleviatepovertyorganicwidespread6._(领会领会)thecontentsofthebook7.smokingis_(禁止禁止)8.foodis_(极其重要的极其重要的)tolife9._(可替代的可替代的)energy10
2、.agree_(完全地完全地)digestprohibitedessentialalternativeentirely.根据语境根据语境,选词填空选词填空inaddition,inturn,becauseof,asfor,aswell,forinstance1.Illdosomereadingforfun,andforknowledge_.2.Theoryisbasedonpracticeand_servespractice.aswellinturn3.Imetsomefriendsandotheracquaintances_.4._parents,nothingcanbecomparedwi
3、ththeirchildrensphysicalandmentalhealth.inadditionAsfor5.Therearejobsmoredangerousthantruckdriving;_,traininglions.6._thehelpyougavemethatsummer,mylifechanged.forinstanceBecauseof.文本整体理解文本整体理解:理清文章架构理清文章架构.文本细节理解文本细节理解:探寻语篇细节信息探寻语篇细节信息1.Whydidmanyfarmerswelcometheintroductionofchemicalfarming?A.They
4、canfightcropdiseaseandincreaseproduction.B.Theyharmboththelandandpeopleshealth.C.Theycanhelpproducerichsoil.D.Theyarenotexpensive.2.Whatconcernsmanypeopleabouttheuseofpesticides?A.Pesticidescandamagetheland.B.Chemicalscanstayinthesoilforalongtime.C.Pesticidescankillharmfulbacteriaandinsects.D.Chemic
5、alsmaymakepeopleillandevencausecancer.3.Whydoorganicfarmerschangethekindofcropgrownineachfieldeveryfewyears?A.Ithelpsputimportantmineralsbackintotheground.B.Itcanavoiddamagetotheenvironment.C.Itcanhelpincreaseoutput.D.Thewriterdidnttellus.4.Whycantwestoptheuseofman-madechemicalsinagricultureentirely
6、?A.Organicfarmingcostusalotofmoney.B.Organicfarmingcanmeetpeoplesneed.C.Chemicalfarmingbroughtushugeprofit.D.Chemicalfarminghelpsservetheneedforfood.答案答案:14.ADAD.文本素养提升文本素养提升:阅读技能综合运用阅读技能综合运用1.根据课文语境与语句知识细致解构语句根据课文语境与语句知识细致解构语句译文译文:为什么种植不同的作物是因为它们把重要的矿为什么种植不同的作物是因为它们把重要的矿物质放回地下物质放回地下,使它为下一批作物再次做好准备。
7、使它为下一批作物再次做好准备。分析分析:本句本句is前面是前面是why引导的主语从句引导的主语从句,is后面是后面是because引导的表语从句。主语从句和表语从句中的引导的表语从句。主语从句和表语从句中的语序都是陈述句语序。语序都是陈述句语序。making在这里是动词在这里是动词-ing形式形式短语作结果状语。短语作结果状语。2.课文概要填空课文概要填空Withthedevelopmentofsociety,chemicalpesticidesandartificialfertilisershavebeenin_useinfarmingformanyyears.Theycanhelpfigh
8、tcrop_andincreaseproduction.However,theycancausemanyproblems_.Forinstance,pesticidescankill_bacteriaandwidespreaddiseaseaswellhelpfulinsectsandcropsgrownwithchemicalfertilisersusuallygrow_tobefullofnutrition.Asaresult,manypeopleworrytheymaymakethemillandevencausecancer.Totacklethisproblem,farmersuse
9、naturalwasteas_andtheyoftenchangethekindofcropgrownineachfieldeveryfewyearsandtheyalsotoofastfertiliserplantdiversecropsthatusedifferent_ofsoiltohelpkeepitrich.Butorganicfarmingisnowherenearableto_thehighdemandforfood.Therefore,thereisstillalongwaytofinda_solutionthatputssufficientfoodonthedinnertab
10、lewhilekeepingpeopleandtheenvironmentas_aspossible.depthsmeetsuitablehealthy3.阅读主题活动阅读主题活动Talkaboutthefollowingquestionsinpairs,andshareyourideaswithyourclassmates.(1)Whatotherdisadvantagesofchemicalfarmingdoyouknow?Listasmanyasyoucan._Asthesayinggoes,“Eachcoinhastwosides.”AlthoughChemicalfarmingser
11、vesusenoughfood,_theybroughtustoomanyproblemsaswell.Firstly,theydestroyedthesoil.(2)Doyouhaveagoodideathatputssufficientfoodonthedinnertablewhilekeepingpeopleandtheenvironmentashealthyaspossible?_Inmyopinion,weshould.1.widespreadadj.分布广的分布广的,普遍的普遍的,广泛的广泛的*Chemicalpesticidesandartificialfertilisersha
12、vebeeninwidespreaduseinfarmingsincethemiddleofthe20thcentury.自自20世纪中叶以来世纪中叶以来,化学杀虫剂和人工肥料在农业中化学杀虫剂和人工肥料在农业中被广泛使用。被广泛使用。*(2019浙江高考浙江高考)Mclntyreandhiscolleaguesdocumentedawidespreaddeathofbigtreesthatwasevidenteveninwildlandsprotectedfromwoodcuttingordevelopment.Mclntyre和他的同事发现大树的广泛死亡和他的同事发现大树的广泛死亡,即使在
13、禁即使在禁止砍伐和开发的野生土地上也很明显。止砍伐和开发的野生土地上也很明显。【词块积累词块积累】(1)awidespreaddisease 流行病流行病inwidespreaduse广泛应用广泛应用(2)widelyadv.广泛地广泛地,大大地大大地*Englishiswidelyspokenintheworld.英语在世界上被广泛使用。英语在世界上被广泛使用。【即学活用即学活用】(1)Theconsequenceofarisingsealevelwouldbe_(到处洪水泛滥到处洪水泛滥).(2)Warmwintermaycausea_(流流行病行病).widespreadflooding
14、widespreaddisease(3)_(影响是广泛的影响是广泛的).Morethan90%ofMicrosofts2,280employeesinJapanlatersaidtheywereimpactedbythenewmeasures,accordingtothecompany.(4)_forthenewproposals.新提议获得了广泛的支持。新提议获得了广泛的支持。TheeffectswerewidespreadThereiswidespreadsupport(5)_insomeAfricancountries.在某些非洲国家食物短缺的情况很普遍。在某些非洲国家食物短缺的情况很普
15、遍。Foodshortagesarewidespread2.prohibitvt.禁止禁止;阻止阻止(prohibited,prohibited)*Infact,somepesticideslikeDDThavebeenprohibitedinmostcountriesbecauseofthedamagetheycausetopeopleandtheenvironment.事实上事实上,一些杀虫剂一些杀虫剂,如如DDT,因为它们对人和环境造成因为它们对人和环境造成的损害的损害,在大多数国家已经被禁止。在大多数国家已经被禁止。*(2017全国卷全国卷)Theprofessorwasdeafand
16、anytalkingwasprohibited.那个教授是个失聪的人那个教授是个失聪的人,并且任何交谈都受限制。并且任何交谈都受限制。【词块积累词块积累】prohibitsb.fromdoingsth.阻止某人做某事阻止某人做某事【即学活用即学活用】语法填空语法填空(1)TravelfromortoWuhancityshouldbe_(prohibit)beforethespreadofthenovelcoronavirusoutbreak.(2)Hissmallsizeprohibitshimfrom_(become)apoliceman.prohibitedbecoming(3)Dr.Ki
17、ngencouragesustofightagainstthisunfairsystemwhichprohibitsusfrom_(sit)wherewelike.(4)Soifyoudontwantyourpersonal,yet_(prohibit),belongingstolandonnextyearsChristmastree,bettercheckoutthebaggagerequirementsbeforeyoupackforyournextflight.sittingprohibited3.essentialadj.完全必要的完全必要的;极其重要的极其重要的*Theymayloo
18、kbeautifulontheoutside,butinsidethereisusuallymorewaterthanessentialminerals,andtheyoftenhavelessflavoraswell.它们外表看起来可能很漂亮它们外表看起来可能很漂亮,但里面通常含水比必需但里面通常含水比必需矿物质多矿物质多,而且它们的味道也往往较淡。而且它们的味道也往往较淡。*(2019天津高考天津高考)Historyismuchmorethanthestudyofdustyoldobjectsandeventslongpast.Itisanessentialpartofwhoweareto
19、dayandwhowewillbecome.历史不只是研究满是灰尘的古董和很久以前的事件。历史不只是研究满是灰尘的古董和很久以前的事件。它还是搞清楚我们今天是谁和我们将成为谁的重要部它还是搞清楚我们今天是谁和我们将成为谁的重要部分。分。*Foodisessentialtolife.食物对生命是必不可少的。食物对生命是必不可少的。【词块积累词块积累】beessentialto/for 对对很重要很重要Itisessentialthat.(should)do.“做做是完全必要的是完全必要的”Itisessentialforsb.todo.“对某人来说做对某人来说做是完全必要的是完全必要的”【即学活
20、用即学活用】(1)语法填空语法填空Sunandwaterareessential_thegrowthofcrops.Itisessentialforus_(set)ourgoalrealistically.Itisessentialthatyou_(learn)Chinesehistory.totoset(should)learn(2)_youshouldcomehomeearly.你有必要早点回家。你有必要早点回家。(3)Arichandvariedculturallife_thiscouple.丰富多样的文化生活对这对夫妇而言是至关重要的。丰富多样的文化生活对这对夫妇而言是至关重要的。It
21、isessentialthatisessentialfor4.alternativen.可供选择的事物可供选择的事物adj.可供替代的可供替代的,非非传统的传统的*Asanalternative,somefarmershaveswitchedtoorganicfarming,andmanycustomershaveturnedtoorganicfoodwhentheyshopatthelocalgrocery.作为一个选择作为一个选择,一些农民已经转向有机农业一些农民已经转向有机农业,而且许多而且许多顾客在当地杂货店购物时也转向了有机食品。顾客在当地杂货店购物时也转向了有机食品。【词块积累词块
22、积累】(1)havenoalternativebut(todo)除除(做做)外别无选择外别无选择(2)(同义词同义词)choicen.选择选择,选择权选择权makeachoice做选择做选择havenochoicebuttodo别无选择只好做别无选择只好做【即学活用即学活用】(1)Asthereislessandlesscoalandoil,scientistsareexploringnewwaysofmakinguseof_(替代能源替代能源),suchassunlight,windandwaterforpowerandfuel.alternativeenergy(2)Ifyoudontli
23、ketheschoollunch,you_bringingyourown.要是你不喜欢学校的午餐要是你不喜欢学校的午餐,你可以自己带饭。你可以自己带饭。(3)Findinghimselfunderfirefromallquarters,he_abandonhisscheme.在这四面楚歌的情况下在这四面楚歌的情况下,他除了放弃他的计划没有别他除了放弃他的计划没有别的选择。的选择。havethealternativeofhadnoalternativebutto(4)VilniusAirportinLithuaniahasunveiledits_festivetreemadeentirelyof
24、itemsconfiscatedfrompassengers.立陶宛的维尔纽斯机场的另类节日树亮相立陶宛的维尔纽斯机场的另类节日树亮相都是用都是用乘客那里没收的物品做成的。乘客那里没收的物品做成的。alternative5.instancen.例子例子,实例实例,事例事例*Forinstance,theymaygrowcornorwheatinafieldoneyear,andthengrowbeanstherethenext.例如例如,他们可以一年在田里种植玉米或小麦他们可以一年在田里种植玉米或小麦,然后下一然后下一年在那里种植豆类。年在那里种植豆类。*(2019天津高考天津高考)Mostf
25、oodwebs,forinstance,consistofmanyweaklinksratherthanafewstrongones.例如例如,大多数食物网由许多薄弱链接组成大多数食物网由许多薄弱链接组成,而不是几个而不是几个强有力的链接。强有力的链接。【词块积累词块积累】forinstance例如例如inthefirstinstance第一第一,首先首先【即学活用即学活用】语法填空语法填空(1)Thereareanumberofimprovements,_instance,bothmousebuttonscannowbeused.for(2)Letyourchildmakesomeofthe
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