2019-2020学年高中英语 课时分层作业7 Section Ⅰ、Ⅱ（含解析）牛津译林版必修5

-1-Unit3Scienceandnature课时分层作业(七)SectionⅠ、Ⅱ(建议用时：35分钟)[语言知识练习固基础]单句语法填空1．Sheisthefirstone____________(understand)thatproblem.2．__________theotherhand，westudentshavetodomassesofhomeworkbothathomeandatschool.3．ManyChinesecollegegraduatesleavetheircountrytogetfurthereducationinAmerica________theintentionofgettingbetterjobsinthefuture.4．AlotofstudentswastetheirsparetimesurfingtheNet；________aconsequence，theyoftenfailtofinishtheirhomeworkontime.5．TurnofftheTV，soyoucanconcentrate________yourhomework.6．Nowadays，somehotnetworklanguages__________(adopt)insomeofficialmedia，suchasCCTVandPeople'sDaily.7．Ifhe___________(improve)hisITskills，he'deasilygetajob.8．Thechildrenwereanxiousfortheirmother________(come)assoonaspossible.9．________(exact)speaking，youaretoblamefortheaccident.10．Nomatterwhathappens，wemustpushahead________ourplan.[高考题型练习提能力]Ⅰ.阅读理解Plantcloninghasbeenanagriculturaltechniqueusedbyfarmersandgardenersforcenturies.Grafting(嫁接)isacommonformofplantcloning.Manyplantsinnatureactuallyclonethemselvesandreproduceasexually.Clonedplantsaremuchmorepredictablethannormalplants，sotheiryield(产量)ismorereliable.Clonedplantsalsoreproducefaster，limitingtheamountoftimebetweenplantingandharvesting.Itisalsooftencheapertoproduceseedsthroughcloningthanthroughtraditionalmethods.Plantscanessentiallybeoptimizedsothatfarmersorindividualgrowersalwayshavethebestseedsavailable.Withmoreyieldatafasterrate，farmscanproducemorefoodformorepeoplewhiledecreasingoverallcosts.Cloningcanbeusedtowipeoutdiseasesthatpreviouslykilledoffentirefields-2-ofcrops.Thiswouldmakeplantsimmune(免疫的)tothekindsofdiseasesthatfarmersandgardenersaroundtheworldfeareachyear.Cropfailuresduetodiseaseandviruscouldbecomeathingofthepast.Also，plantsthatarenearextinctioncanbebroughtbacktolifethroughcloning.Throughcloningscientistscandevelop“super”fruitsandvegetablesofsuperiornutritionalquality.Thiscouldmakeforahealthierpopulationoverall.Thisisalreadybeingdonethroughselectivepollination(授粉)，andgeneticcloningcouldtakeittothenextlevel.Byplantcloningwehaveapopulationofidenticalplantsandalltheseplantsequallysufferfromthesamediseases，butinnaturetheweakwoulddieandthestrongwouldsurvive.Whiletherearesomedangerstoconsiderwithplantcloning，thereareplentyofbenefitsthatcouldprovevitaltothepropagation(繁衍)ofthehumanspecies.1．Theunderlinedword“optimized”inParagraph2canbereplacedby“________”．A．enlargedB．producedC．perfectedD．examined2．Accordingtothetext，clonedplants________．A．haveloweryieldthannormalplantsB．haveashortgrowthcycleC．resistvariouskindsofdiseasesD．needlittlecarefrompeople3．Whatcanweinferfromthetext?A．Thefruitsproducedbyclonedplantstastemuchbetter.B．Therearemoreclonedplantsthannormalplants.C．Plantcloningcandisturbthelawsofnature.D．Peopleshouldavoideatingclonedfruits.4．Whatisthemainpurposeofthetext?A．Towarnthenegativeeffectsofplantcloning.B．Topresentdifferentkindsofplantcloning.C．Topredictthefutureofplantcloning.D．Toinformusabouttheadvantagesofplantcloning.Ⅱ.阅读七选五(2019·山东省邹城市第一中学高二上学期期中)AreThesetheBestYearsofYourLife?-3-Theupsanddownsoflifemayseemtohavenopredictableplan.Butscientistsnowknowthereareveryclearlifepatternsthatalmostallpeopleshare.Evenifyouhavepassedsomeofyourbestyears,youstillhaveothergoodyearstocome.__1__Whenareyousmartest?From18to25,accordingtoI．Q.scores;butyouarewiserandmoreexperiencedwithincreasingage.You'resharpestinyour20's;around30,mentalabilitiesbegintodecline,particularlyyourabilitytodomaths.__2__Yourvocabularyatage45,forexample,isthreetimesasgreataswhenyougraduatedfromcollege.At60,yourbrainpossessesalmostfourtimesasmuchinformationasitdidatage21.__3__Youhavethebestphysicalsenseofyourselffrom15to24,whenyoufeelenergeticallthetime.Thebestprofessionalsenseseemsfrom40to49.Beforeage24,webelievethatourhappiestyearsareyettocome.Over30,webelievethatthey'rebehindus.ANationalHealthSurveyagrees:Afterage30,we“becomemorerealisticanddonotviewhappinessasagoalinitself.Ifwekeepourhealth,achieveprofessionalandemotionalgoals,thenhappiness,wefeel,willfollow.”__4__Generallybetween30to39,butthepeak(顶峰)varieswithdifferentprofessions.Mozartwroteasymphonybyageeight,andMendelssohncomposedhisbest­knownwork，AMidsummerNight'sDream,at17,butmostofthegreatmusicwaswrittenbymenbetween33and39.Thoughthepeakinmostfieldscomesearly－mostNobelPrizewinnersdidtheirtopresearchintheirlate20'sand30's,creativepeoplecontinuetoproducequalityworkthroughouttheirlives.__5__A．Whenareyouhappiest?B．Whenareyoumostcreative?C．Butyourabilitytocompleteothertasksclimbs.D．Theabovegivesyouanaccuratefigure.E．Certaingoodyearsseemtocomelaterinlife.F．Forpeoplewhoarecreative,thereisnoupperagelimit.G．Thehumanlifejourneycannotbechartedbyaclearlifepattern.Ⅲ.语法填空(2019·内蒙古鄂尔多斯市第一中学高二上学期第三次月考)Yiwu,China,April29(Reuters)—Thefirstfreighttrain(货运列车)torunfromBritaintoChinaarrivedinthecityofYiwuineasternChinaonSaturday，1.________(complete)its12，000kms­journey.Thetrain，2._________carrieditemssuchasvitaminsandbabyproducts，-4-3._________(greet)bytradersandshippingcompanyofficialswhenitarrivedatYiwuWeststationafterdepartingLondononApril10.Thefirs