2018-2019版高考英语大二轮复习第二部分阅读理解14科普知识类课件.pptx

专题十四科普知识类,-2-,(2018全国)Abuild-it-yourselfsolarstill(蒸馏器)isoneofthebestwaystoobtaindrinkingwaterinareaswheretheliquidisnotreadilyavailable.DevelopedbytwodoctorsintheU.S.DepartmentofAgriculture,itsanexcellentwatercollector.Unfortunately,youmustcarrythenecessaryequipmentwithyou,sinceitsallbutimpossibletofindnaturalsubstitutes.Theonlycomponentsrequired,though,area55sheetofclearorslightlymilkyplastic,sixfeetofplastictube,andacontainerperhapsjustadrinkingcuptocatchthewater.Thesepiecescanbefoldedintoaneatlittlepackandfastenedonyourbelt.,-3-,Toconstructaworkingstill,useasharpstickorrocktodigaholefourfeetacrossandthreefeetdeep.Trytomaketheholeinadampareatoincreasethewatercatchersproductivity.Placeyourcupinthedeepestpartofthehole.Thenlaythetubeinplacesothatoneendrestsallthewayinthecupandtherestofthelinerunsupandoutthesideofthehole.Next,covertheholewiththeplasticsheet,securingtheedgesoftheplasticwithdirtandweightingthesheetscenterdownwitharock.Theplasticshouldnowformacone(圆锥体)with45-degree-angledsides.Thelowpointofthesheetmustbecentereddirectlyover,andnomorethanthreeinchesabove,thecup.,-4-,Thesolarstillworksbycreatingagreenhouseundertheplastic.Groundwaterevaporates(蒸发)andcollectsonthesheetuntilsmalldropsofwaterform,rundownthematerial,andfalloffintothecup.Whenthecontainerisfull,youcansucktherefreshmentoutthroughthetube,andwonthavetobreakdownthestilleverytimeyouneedadrink.,-5-,32.Whatdoweknowaboutthesolarstillequipmentfromthefirstparagraph?A.Itsdelicate.B.Itsexpensive.C.Itscomplex.D.Itsportable.33.Whatdoestheunderlinedphrase“thewatercatcher”inparagraph2referto?A.Thetube.B.Thestill.C.Thehole.D.Thecup.34.Whatisthelaststepofconstructingaworkingsolarstill?A.Digaholeofacertainsize.B.Putthecupinplace.C.Weightthesheetscenterdown.D.Covertheholewiththeplasticsheet.,-6-,35.Whenasolarstillworks,dropsofwatercomeintothecupfrom.A.theplastictubeB.outsidetheholeC.theopenairD.beneaththesheet,-7-,【文章结构】,-8-,【难点分析】Unfortunately,youmustcarrythenecessaryequipmentwithyou,sinceitsallbutimpossibletofindnaturalsubstitutes.不幸的是,你必须随身携带这些必备的仪器,因为要找到天然的替代品几乎是不可能的。分析:since.是原因状语从句;it是形式主语,tofind.是不定式作真正的主语。allbut意为“几乎”。Whenthecontainerisfull,youcansucktherefreshmentoutthroughthetube,andwonthavetobreakdownthestilleverytimeyouneedadrink.当容器装满了水,你就可以通过吸水管把这些提神的水吸出来,而不必每次饮水时都要把装置拆掉。分析:该句中的“everytimeyouneedadrink”是时间状语从句,表示“每当的时候”。,-9-,【语篇导读】美国农业部的两位博士研制出一种蒸馏器。在水资源短缺的区域,这是一种非常不错的获得饮用水的设备。32.D推理判断题。从文章第一段的“Thesepiecescanbefoldedintoaneatlittlepackandfastenedonyourbelt.”可知,这种集水器设备携带起来很方便。人们可以把它折叠成一个小包并系在腰带上。33.B词义猜测题。从文章第二段的“Toconstructaworkingstill.”和画线词后的productivity可推断出画线部分指的是thestill。34.C细节理解题。从文章第三段的“Next,covertheholewiththeplasticsheet,securingtheedgesoftheplasticwithdirtandweightingthesheetscenterdownwitharock.”可知,用塑料布把洞穴覆盖,并把塑料布的边缘用泥土弄牢。最后把一块石头压在塑料布的中心。因此选C项。,-10-,35.D推理判断题。从文章最后一段的“Groundwaterevaporatesandcollectsonthesheetuntilsmalldropsofwaterform,rundownthematerialandfalloffintothecup.”可知,这种蒸馏器的工作原理是创造一个温室。地面的水向上蒸发并在塑料布上聚集形成小水滴,然后水滴顺着塑料布流下来落到杯子里。,-11-,A(2018天津C)Theresanewfrontierin3Dprintingthatsbeginningtocomeintofocus:food.Recentdevelopmenthasmadepossiblemachinesthatprint,cook,andservefoodsonamassscale.Andtheindustryisntstoppingthere.FoodproductionWitha3Dprinter,acookcanprintcomplicatedchocolatesculpturesandbeautifulpiecesfordecorationonaweddingcake.Noteverybodycandothatittakesyearsofexperience,butaprintermakesiteasy.ArestaurantinSpainusesaFoodinito“re-createformsandpieces”offoodthatare“exactlythesame,”freeingcookstocompleteothertasks.Inanotherrestaurant,allofthedishesanddessertsitservesare3D-printed,ratherthanfarmtotable.,-12-,Sustainability(可持续性)Theglobalpopulationisexpectedtogrowto9.6billionby2050,andsomeanalystsestimatethatfoodproductionwillneedtoberaisedby50percenttomaintaincurrentlevels.Sustainabilityisbecominganecessity.3Dfoodprintingcouldprobablycontributetothesolution.Someexpertsbelieveprinterscouldusehydrocolloids(水解胶体)fromplentifulrenewableslikealgae(藻类)andgrasstoreplacethefamiliaringredients(烹饪原料).3Dprintingcanreducefueluseandemissions.Grocerystoresofthefuturemightstock“food”thatlastsyearsonend,freeingupshelfspaceandreducingtransportationandstoragerequirements.,-13-,NutritionFuture3Dfoodprinterscouldmakeprocessedfoodhealthier.HodLipson,aprofessoratColumbiaUniversity,said,“Foodprintingcouldallowconsumerstoprintfoodwithcustomizednutritionalcontent,likevitamins.Soinsteadofeatingapieceofyesterdaysbreadfromthesupermarket,youdeatsomethingbakedjustforyouondemand.”,-14-,ChallengesDespiterecentadvancementsin3Dfoodprinting,theindustryhasmanychallengestoovercome.Currently,mostingredientsmustbechangedtoapaste(糊状物)beforeaprintercanusethem,andtheprintingprocessisquitetime-consuming,becauseingredientsinteractwitheachotherinverycomplexways.Ontopofthat,mostofthe3Dfoodprintersnowarerestrictedtodryingredients,becausemeatandmilkproductsmayeasilygobad.Someexpertsareskepticalabout3Dfoodprinters,believingtheyarebettersuitedforfastfoodrestaurantsthanhomesandhigh-endrestaurants.,【语篇解读】本文是一篇说明文,主要介绍一项新的3D食物打印技术。分别介绍食物打印的省时高效特点、所使用的原料的可持续性、提供顾客所需要的营养以及目前技术推广面临的挑战等。,-15-,1.Whatbenefitdoes3Dprintingbringtofoodproduction?A.Ithelpscookstocreatenewdishes.B.Itsavestimeandeffortincooking.C.Itimprovesthecookingconditions.D.Itcontributestorestaurantdecorations.,答案,解析,-16-,2.Whatcanwelearnabout3DfoodprintingfromParagraph3?A.Itsolvesfoodshortageseasily.B.Itquickensthetransportationoffood.C.Itneedsnospaceforthestorageoffood.D.Itusesrenewablematerialsassourcesoffood.,答案,解析,-17-,3.AccordingtoParagraph4,3D-printedfood.A.ismoreavailabletoconsumersB.canmeetindividualnutritionalneedsC.ismoretastythanfoodinsupermarketsD.cankeepallthenutritioninrawmaterials,答案,解析,-18-,4.Whatisthemainfactorthatprevents3Dfoodprintingfromspreadingwidely?A.Theprintingprocessiscomplicated.B.3Dfoodprintersaretooexpensive.C.Foodmaterialshavetobedry.D.Someexpertsdoubt3Dfoodprinting.,答案,解析,-19-,5.Whatcouldbethebesttitleofthepassage?A.3DFoodPrinting:DeliciousNewTechnologyB.ANewWaytoImprove3DFoodPrintingC.TheChallengesfor3DFoodProductionD.3DFoodPrinting:FromFarmtoTable,答案,解析,-20-,B(2018山东济南二模)ManypeopletraveledtoLasVegas,Nevadalastweekforthe50thConsumerElectronicsShow,orCES.Theshowissaidtohavethelargestcollectionofnewelectronicdevicesintheworld.Theshowhadmanyexamplesof“smarthome”devices.“Smarthome”technologyisdesignedtomakelifeeasierforpeoplebylettingcomputerscontrolmanythingsinsideourhomes.Onesuchdeviceactuallybeginsworkingoutsidethehome,whensomeonearrivesandringsthedoorbell.,-21-,“Whensomeonecomestoyourfrontdoorandringsthedoorbell,thelightcanturnonimmediately.IgetanotificationwhenImhalfwayaroundtheworldthatsomeonecame,andIcanstarttalkingtothepersonwhosatmyfrontdoor,andIcansay,Oh,hereletmeletyouin.Icanunlockthedoorforthemveryeasily.”saidVivint,asmarthomeserviceprovider.Oneelectronicsmakerlaunchedadevicethatletspeopleseeandinteractwiththeiranimalswhentheyareaway.Thedevice,fromPetcube,letsyouremotelywatchandtalktoyourpetthroughapersonaldevice,accordingtoacompanyofficial.Itcanevengivethepetatreatifyouapproveandorderit.,-22-,Forheatingorcooling,thereisasmartthermostat.Thisdevicecanalsosendyouamessageifabigstormcausesleaksorflooding.“Weretryingtocatchitwithjustafewdripsbeforeitbecomesareallybigproblem,”saidMikeSaleofiDevices.Aconcernformanyhomeownersisthepossibilitythatsomeoneelsemightfindawaytoattackthesesmarthomedevices.AnofficialfromVivintsaidhiscompanyissurethatonlyownersofthehomecangainuseofinformationonthedevices.WarrenKatzfromiDevicessaidhiscompanyemploysengineersfromthedefenseindustrytohelppreventhacking.,【语篇解读】本文是一篇科技产品说明文。作者介绍了内华达州拉斯维加斯消费者电子产品展示会中智能