国家开放大学(电大)理工英语4单元自测7

一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。题目1—Doyoueatporridgeeveryday?—.B.No,sometimesI’dhaveacupofsoybeanmilk,aboiledeggandasteamedbunformybreakfast题目2—Sohowcanwebuysafefood?—.C.Whenwechoosefood,wemustremembertocheckitstag,confirmingwhetherthebasicinformationismarkedonit题目3—Whatwouldyouliketohaveforbreakfast?—.Wouldyouliketohaveataste?A.Twistedcruller,Iboughtitthismorning正确题目4Thetechnologyhasseveraladvantagesearlierattemptstoengineermeatinvitro.B.incomparisonto题目5This,theyargue,willbeessentialtotheneedsofaboomingpopulationindecadestocomeandavoidingstarvation.B.meeting题目6二、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?回答A.Bycross-pollinating.B.Byconventionalcrossbreeding.C.ByalteringtheDNAsystemofthesefoods.2.Dofarmersneedtobuyanychemicalsandpesticidesiftheyplantgeneticallymodifiedfood?回答正确A.Yes,theyneedto.Becausethefoodisnotresisttopests.B.No,theydon’tneedto.Becausethefoodisnaturallypest-resistant.C.No,theydon’tneedto.Becausethechemicalsandpesticidesareprovidedbythegovernment.3.Whichstatementisnottheadvantageofgeneticallymodifiedfood?回答A.Itmayhaveharmfuleffectsonhumanbody.B.Geneticallymodifiedfoodgrowsfasterthantheirtraditionallygrowncounterparts.C.Farminggeneticallymodifiedfoodcanhelpfightworldhunger.4.Whatwouldhappentoapersonifheregularlyconsumegeneticallymodifiedfood?回答A.Hewouldgetcold.B.Hewouldlosesomeweight.C.Hewouldhavecancer.5.Whichtitleisthebestforthispassage?回答A.Cangeneticallymodifiedfoodscombatworldhunger?B.Geneticallymodifiedmood:ouranswerisnoC.Geneticallymodifiedfoods:prosandcons解析：1.C2.B。3.A4.C5.C一、选择填空：阅读下面的对话或句子，从A、B、C三个选项中选出一个能填入空白处的最佳选项。题目1—Ithinktheotherreasoncanbeidentifiedfromtheindustrializationoffoodproduction.—.Someillegaltraderscareaboutnothingbutmakingmoney.C.Yes,youbet题目2—WhatisU.S’sexperienceinfoodsafetymanagement?—.B.Theyareimprovingthelegalsystemallthetimeandverystrictinlawenforcement题目4Animalfarmingabouthalfofallhuman-causedgreenhousegases.B.accountsforC.counton题目5Someillegaltraderscareaboutnothingbut.B.makingmoney题目6二、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。回答2050,theworld'spopulation回答toriseto9billionfromjustover7billioncurrently.Proponentsofgeneticallymodifiedfoodssaytheyaresafeandcanboostharvests回答inbadconditionsbyprotectingagainstpests,weedsanddrought.This,theyargue,willbeessentialtomeetingtheneedsofaboomingpopulationindecadestocomeandavoidingstarvation.回答DougGurian-Sherman,seniorscientistforthefoodandenvironmentprogramattheUnionofConcernedScientists,anadvocacygroup,saidgeneticengineeringforinsectresistancehasprovidedonlyamodestincreaseinyieldssincethe1990sanddrought-resistantstrainshaveonly回答reducedlossesfromdrought.解析：1.A2.B3.B4.C5.A题目4Youcanhaveeggsorhard-boiled.B.fried题目5peoplearenolongerworriedaboutwhethertheirfoodissafeornottheyenjoyabetterlife.A.Onlyif……can正确题目6二、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'sappetitesfor300