电大国开专科（附答案）《理工英语4》形考在线(单元自测7)试题

国开电大专科《理工英语4》在线形考单元自测7试题及答案说明：资料整理于年9月。单元自测7试题及答案说明：测试中共有6道随机题，其中有5道选择题和1道完形填空题；均可以从下面题库中找到试题及答案。第一大题：选择题(随机抽其中5道)_________peoplearenolongerworriedaboutwhethertheirfoodissafeornot_____theyenjoyabetterlife.A.Onlyif……canB.Ifonly……canC.Whatif……can排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：A―Doyoueatporridgeeveryday?―___________________.A.PorridgeismyfavoriteB.No,sometimesI’dhaveacupofsoybeanmilk,aboiledeggandasteamedbunformybreakfastC.Iseldomeatfastfoodbecauseit’srichinfat排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：B―Ithinktheotherreasoncanbeidentifiedfromtheindustrializationoffoodproduction.―_________.Someillegaltraderscareaboutnothingbutmakingmoney.A.ThatbothersmetooB.IsincerelyhopethatthewholesocietypaymuchmoreattentiontofoodsafetyC.Yes,youbet排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：C―Sohowcanwebuysafefood?―___________________.A.Thehighertheprice,thesaferthefoodB.WecanplantvegetablesandfruitsbyourselvesC.Whenwechoosefood,wemustremembertocheckitstag,confirmingwhetherthebasicinformationismarkedonit排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：C―WhatisU.S’sexperienceinfoodsafetymanagement?―___________________.A.U.S.dobetterinthispointB.TheyareimprovingthelegalsystemallthetimeandverystrictinlawenforcementC.Someillegaltraderscareaboutnothingbutmakingmoney排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：B―Whatwouldyouliketohaveforbreakfast?―_________.Wouldyouliketohaveataste?A.Twistedcruller,IboughtitthismorningB.IalreadyhadmybreakfastC.Breakfastisthemostimportantmealoftheday排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：AAnimalfarming_________abouthalfofallhuman-causedgreenhousegases.A.countforB.accountsforC.counton排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：BIamreally_________byfreshingredients,intricatecookinganddiversetraditionsofChinesefood.A.fascinatedB.fabricateC.fancy排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：AModernMeadowisastartupthatengineerstissuestocreatelab-grown_________meat.A.edibleB.editableC.edify排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：ASomeillegaltraderscareaboutnothingbut_________.A.tomakemoneyB.makingmoneyC.mademoney排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：BTheproblemisunevendistribution,_________870millionsufferingfromhunger.A.leftB.toleaveC.leaving排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：CThetechnologyhasseveraladvantages_________earlierattemptstoengineermeatinvitro.A.incomparisonofB.incomparisontoC.comparewith排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：BTheyshouldnevertrytopursueprofit_________healthandlifeofpeople.A.intermsofB.atsightofC.attheexpenseof排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：CThis,theyargue,willbeessentialto____theneedsofaboomingpopulationindecadestocomeandavoidingstarvation.A.meetB.meetingC.met排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：B5.Thislab-grownmeathasalreadywidelyreceivedbythemasses.{T;F}Youcanhaveeggs_________orhard-boiled.A.fryingB.friedC.havefried排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：B第二大题：完形填空(随机抽其中1道)阅读理解:阅读下面的短文,根据文章内容从A、B、C三个选项中选出一个最佳选项。(教材课文原文){A.By;B.In;C.Until}2050,theworld’spopulation{A.projected;B.isprojected;C.hasbeenprojected}toriseto9billionfromjustover7billioncurrently.Proponentsofgeneticallymodifiedfoodssaytheyaresafeandcanboostharvests{A.eventhough;B.even;C.though}inbadconditionsbyprotectingagainstpests,weedsanddrought.This,theyargue,willbeessentialtomeetingtheneedsofaboomingpopulationindecadestocomeandavoidingstarvation.{A.Furthermore;B.Moreover;C.However}DougGurian-Sherman,seniorscientistforthefoodandenvironmentprogramattheUnionofConcernedScientists,anadvocacygroup,saidgeneticengineeringforinsectresistancehasprovidedonlyamodestincreaseinyieldssincethe1990sanddrought-resistantstrainshaveonly{A.modestly;B.modest;C.moderate}reducedlossesfromdrought.阅读理解:阅读下面的短文,根据文章内容从A、B、C三个选项中选出一个最佳选项。(课外选材)Accordingtoexperts,theadvantageofmodifiedfoodisthatithelpsinpreventingtheoccurrenceofallergiesandalsohasalongshelflife.However,amajorportionofthepopulationisagainsttheconsumptionofgeneticallymodifiedfoodandisconcernedaboutitsdisadvantages.Ifyouarealsoconfusedabouttheconsumptionofgeneticallymodifiedfood,readthroughtheprosandconsgivenbelowanddecideforyourself.ADVANTAGESOFGENETICALLYMODIFIEDFOODS●Oneofthemostprominentadvantagesofgeneticallymodifiedfoodisthatithelpsincontrollingtheoccurrenceofcertaindiseases.Certainfoodscauseallergytopeople.TheirgeneticmodificationalterstheDNAsystemofthesefoods,therebymakingthemnon-allergic.●Anothermajoradvantageofsuchtypeoffoodsisthattheygrowfasterthantheirtraditionallygrowncounterparts.Asaresult,thereisgreaterproductivityandmorefood.●Apersonneednotbotheraboutanyadditionalcosts,suchasbuyingchemicalsandpesticides,whenitcomestogeneticallyengineeredfood.Thefoodisnaturallypest-resistant.●Farmingthesefoodscanbeagreatwaytofightworldhunger.Sincethesecropsgrowfasterormoreeffectively,increasedproductionwouldhelpcountrieswhereincropsmaynotnormallyprosperbecauseoflessthandesirableenvironmentalconditions.●Theincreasedshelflifeofthesefoodproductshelpsinreducingthequantityofrottenfood.DISADVANTAGESOFGENETICALLYMODIFIEDFOODS●Thebiggestdisadvantageofgeneticallymodifiedfoodisthattheyhaveharmfuleffectsonthehumanbody.Theconsumptionofthesegeneticallyengineeredfoodscanleadtodevelopmentofdiseasesthatareimmunetoantibiotics.●Chancesofdevelopingcancerarehighinpeoplewhoregularlyconsumeengineeredfood.●Sinceitisanunnaturalwayofproducingfoods,thereisanincreasedhealthhazardsuchasallergens,transferofantibioticresistancemarkersandunknowneffects.●Sincetheproductionofengineeredfoodinvolvesinfusinganimalgenesinthecropsandtamperingwithnature,itmightnotbegoodforconsumptioninthelongrun.1.Howdoesgeneticallymodifiedfoodcontroltheoccurrenceofcertaindiseases?A.Bycross-pollinating.B.Byconventionalcrossbreeding.C.ByalteringtheDNAsystemofthesefoods.排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：C2.Dofarmersneedtobuyanychemicalsandpesticidesiftheyplantgeneticallymodifiedfood?A.Yes,theyneedto.Becausethefoodisnotresisttopests.B.No,theydon’tneedto.Becausethefoodisnaturallypest-resistant.C.No,theydon’tneedto.Becausethechemicalsandpesticidesareprovidedbythegovernment.排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：B3.Whichstatementisnottheadvantageofgeneticallymodifiedfood?A.Itmayhaveharmfuleffectsonhumanbody.B.Geneticallymodifiedfoodgrowsfasterthantheirtraditionallygrowncounterparts.C.Farminggeneticallymodifiedfoodcanhelpfightworldhunger.排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：A4.Whatwouldhappentoapersonifheregularlyconsumegeneticallymodifiedfood?A.Hewouldgetcold.B.Hewouldlosesomeweight.C.Hewouldhavecancer.排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：C5.Whichtitleisthebestforthispassage?A.Cangeneticallymodifiedfoodscombatworldhunger?B.Geneticallymodifiedmood:ouranswerisnoC.Geneticallymodifiedfoods:prosandcons排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍标准表示排渍标准以控制适宜的地下水埋深即耐渍答案：C阅读理解:阅读下面的短文,根据文章内容进行判断,正确写T错误写F。教材课文原文THECOMPANYLEADINGTHEFUTUREOFFARMINGHere’sacrazyidea:Combinebioprintingandtissueengineeringtoprintanimalproductsandtacklesomeoftheplanet’sbiggestproblems.Animalfarming,afterall,accountsforabouthalfofallhuman-causedgreenhousegases,takingplaceonone-thirdoftheavailable,non-frozenlandonEarth.Alltofeedpeople’sappetitesfor300milliontonsofmeatayear.ModernMeadowisaMissouri-basedstartupthatengineerstissuestocreatelab-grownediblemeat,inaprocessthateliminatesmanyofthenegativeenvironmenteffectsassociatedwithtraditionallivestockpractices.Thecompanyclaimsthatbycarefullylayeringmixturesofcellsofdifferenttypesinaspecificstructure,in-vitromeatproductionbecomesfeasible.It’ssetashort-termgoalofprintingasliverofmeataroundtwocentimetersbyonecentimeter,andlessthanhalfamillimeterthick,whichisedible.ThecompanyexplainsinasubmissiontotheUnitedStatesDepartmentofAgriculture:Thetechnologyhasseveraladvantagesincomparisontoearlierattemptstoengineermeatinvitro.Thebio-inkparticlescanbereproduciblypreparedwithmixturesofcellsofdifferenttype.Printingensuresconsistentshape,whilepost-printingstructureformationandmaturationinthebioreactorfacilitatesconditioning.However,itadmitsthattheroadaheadisstrewnwithdifficulties.Theconsumeracceptanceofsuchproductsmaynotbewithoutchallenges.Weexpectitwillfirstappealtoculinaryearly-adopterconsumersandthesegmentofthevegetariancommunitythatrejectsmeatforethicalreasons.Withreductio