国开电大本科《理工英语4》机考真题（第九套）

国开电大本科《理工英语》机考真题及答案（第九套）4（试卷号10861,整套相同，Ctrl+F查找更快捷，李老师祝同学们取得优异成绩!）第一大题、交际用语（单选题）共5小题，每小题2分，共计10分

1、Diana,do youeat appleevery day[A]No,sometimes Idhave aboiled egg.[B]I alwayseat itbecause itsspicy.[C]Porridge isAndys favorite.答案A

2、r mmuch obligedto youfor yourhelp.[A]Its quiteserious.[B]It servesyou right![C]Its mypleasure.答案Cimportant todo.----------[A]That，s allright.[B]Its mypleasure.[C]I havebusy schedule.答案A

3、r mafraid wehave tochange theappointment.I havesomething

4、------What anawfu1day!----.heat iskilling me.temperature iscomfortable,weather is[A]Yes,thepretty agreeable.[B]Yes,the[C]Yes,the

5、Arent youcrazy abouttennis Whynot signup forit答案A[A]It soundsattractive.[B]Come on![C]You arejust crazy.答案A第二大题、词汇与结构（单选题）共15小题，每到小题2分，共计30分1Many housesare reportedin thestorm.[A]to bedestroyed[B]to havedestroyed[C]to havebeen destroyed答案c

2、I arrivedBeijing10oclock July

8.[A]at…in…at[B]to…on…at[C]in・・・at・・・on答案c

3、You afraidof anydifficulties.Be boldand overcomethem.[A]need notto be[B]need notbe[C]don tneed答案B

4、r vemade mistakesthan youhave.[A]many[B]more[C]a lotof答案B

5、Neither ofthe youngmen whohad appliedfor aposition in the company.[A]was accepted[B]were accepted[C]have accepted答案A

6、The firstthing youshould dois toobserve theobjectcarefully.[A]it[B]that[C]which答案B

7、home thanit beganto rain.[A]No soonerhad reachedHelen[B]No soonerHelen hadreached[C]No soonerhad Helenreached答案c

8、Two littlepandas havejust for the zoo.[A]bought[B]been bought[C]to bebought答案B

9、I walkedas fastas Icould,but Icouldn，t him.[A]catch holdof[B]catch out[C]catch upwith答案c10The faintsound isundetectable to the humanear.[A]rigorously[B]virtually[C]strictly答案B

11、The newsystem oftaxation willtake nextyear.[A]effect[B]efficiency[C]affection答案A

12、No onethought thatJohns proposalwas worth.[A]considering[B]being considered[C]to beconsidered答案A

13、The customerto thestorekeeper aboutthe poorquality oftherefrigerator.[A]criticized[B]complained[C]explained答案B

14、I acceptedmy nosesurgery,the andpatient doctorwasreally helpfulduring myrecovery period.[A]greedy[B]graceful[C]gracious答案c

15、We considerit nouse thesefigures byheart.[A]learning[B]to learn[C]learn答案A第三大题、阅读理解（单选题）5小题/篇，每小题4分，共计20分

1、Can treestalk Yes,but notin words.Scientists havereason to believethat treesdo communicate（交际）with eachother.Not longago,researcherslearned somesurprising things.First awillow treeattacked in the woodsbycaterpillars（毛虫）changed thechemistry ofits leaves and madethem tastesoterrible thatthey gottired ofthe leaves and stoppedeating them.Theneven moreastonishing,the treesent outa specialsmell一a signal（信号）causing itsneighbors tochange thechemistry oftheir ownleavesandmakethem lesstasty.Communication,of course,doesnt need tobein words.We cantalk toeachother bysmiling,raising ourshoulders andmoving ourhands.We knowthatbirds andanimals usea wholevocabulary ofsongs,sounds,and movements.Beesdance theirsignals,flying incertain patternsthat tellother beeswhereto findnectar（花蜜）for honey.So whyshouldnt treeshave waysof sendingmessage【单选题】It can be concludedfrom the passage thatcaterpillars donotfeed onleaves that.[A]are lyingon theground[B]have anunpleasant taste[C]bees dont like答案B【单选题】The willowtree described inthepassage protecteditself by.[A]growing morebranches[B]communicating withbirds andbees[C]changing itsleaf chemistry答案c【单选题】According to thepassage,the willowtree was able tocommunicatewith othertrees by.[A]waving itsbranches[B]giving offa specialsmell[C]dropping itsleaves答案B【单选题】According tothis passage,bees communicateby[A]making specialmovement[B]touching oneanother[C]smelling oneanother答案A【单选题】The authorbelieves thatthe incidentdescribedinthepassage[A]cannot betaken seriouslyshould nolonger bepermitted seems[B]completely reasonableC[Cl答案第四大题、阅读理解（判断题）5小题/篇，每小题4分，共计20分

1、By2050,the worldspopulation isprojected to rise to9billionfrom justover7billion currently.Proponents of genetically modifiedfoodssay theyare safeand canboost harvestseven inbad conditionsby protectingagainstpests,weeds anddrought.This,they argue,will beessential tomeetingthe needsof abooming populationin decadesto comeand avoidingstarvation.However,Doug Gurian—Sherman,senior scientistfor the food andenvironmentprogram atthe Unionof ConcernedScientists,an advocacygroup,said genetic engineering forinsect resistancehas providedonly amodestincrease inyields sincethe1990sanddroughtresistant strainshave onlymodestlyreduced lossesfrom drought.Moreover,he saidconventional crossbreedingor cross-pollinating ofdifferentvarieties fordesirable traits,along withimproved farming,isgetting betterresults,boosting yieldsat alower cost.In fact,much ofthefood Americanseat hasbeen genetically modified bythose conventionalmethodsover thousandsof years,before geneticengineering cameinto practice.“Overall,geneticengineeringdoes notget nearlythe bangfor thebuckas conventionalbreeding andimprove agriculturalpractices,Gurian-Sherman said.His organizationadvises cautionon GM foods andfavorslabeling,though itacknowledges the risks ofgenetic engineeringhavesometimes beenexaggerated.Andrea RobertoSonnino,chief ofresearch atthe U.N.food agency,saidtotal food production atpresent is enough tofeed theentire globalpopulation.The problemis unevendistribution,leaving870million sufferingfrom hunger.He saidworld foodproduction willneedtoincrease by60percent tomeet thedemandsof9billion by

2050.This mustbe achievedby increasingyields,headded,because thereis littleroom toexpand cultivatedland usedforagriculture.Genetically modifiedfoods,in someinstances,can helpif theindividualproduct hasbeen assessedas safe,he said.Its anopportunity thatwe cannotjustmiss.”【判断题】Para.1mentions thattherisksofgeneticengineering arenotthat horrible.［A］T LB］F答案X【判断题】Para.5tells usthat unevendistribution leadsto thestarvationof870million peopleintheworld.［A］T［B］F答案7【判断题】Para.1mentions thatadvocates ofgeneticallymodifiedfood arguethatGMfoodcan meetthe demandsof increasingpopulation.［A］T［B］F答案N【判断题】Para.2mentions thatinsect-resistant geneticallymodified foodhasonly showeda fairlysmall increasein production.［A］T［B］F答案N【判断题】Para.3mentions thatthe currentfoodproductionisenough tofeed thewhole globalpopulation.［A］T［B］F答案x第五大题、写作（问答题）共1小题，共计20分I、请根据下列提纲写一篇题为〃绿色食品的普及〃的作文，不少于100词（Please writean essayof noless thanlOOwords,entitled PopularityofGreen Foodaccording tothe outlinegiven below.

1、绿色食品现在越来越受到消费者的青睐；

2、为什么绿色食品如此受欢迎；

3、绿色食品将有更大的发展空间答案1:Due toits high-quality andoriginal tastesgreen foodappeals tomoreconsumers.From supermarketsto chainstores,green foodis foundeverywhere.Why isgreen food sopopular eventhough itsprice isusually higherthan otherfoodOne theone hand,recently aseries ofissues onfood safetymakescustomers disturbedand anxious.In orderto havethe reliablefood,morehousewives optto selectgreen foodfor theirfamily.Green foodhas beenlabeledasakind ofhealthy,delicious andfashionable food.This isperhapsthe mostimportant reasonforthe popularity of greenfood,On theotherhand,with theadvance inliving standard,people willpay moreattentiontothequality of food andtheir raisedincome isenoughtocoverthe expenditureoffoodwith acomparatively highprice.答案2Green foodsare becomingincreasingly popularamong consumersfor severalreasons.Firstly,people arebecoming morehealth-conscious andconcernedabout thequality ofthefoodthey eat.Green foods,which are producedusing naturaland sustainablefarming practices,are perceivedas healthierandsafer forconsumption.They arefree fromchemicals,pesticides,andother harmfuladditives thatcanbefound inconventional food.Secondly,thepopularityofgreen foods canbe attributedtothegrowingawareness ofenvironmental issues.Green foodsareproducedusingeco-friendly methodsthat minimizetheir ecologicalimpact andpreservenatural resources.Consumers arewilling topay morefor green foods becausetheyunderstand theenvironmental andsocial benefitsof supportingsustainablefarming practices.Finally,greenfoodsare expectedto haveeven greaterdevelopment inthefuture.As moreand morepeople becomeaware ofthe harmfuleffects ofconventionalfarming practiceson theenvironment andhuman health,thedemand forgreenfoodswill continuetorise.This willencourage morefarmersto switchto sustainablefarming practices,which willbring moregreenfood optionsto consumers.。