《科技英语》第四阶段在线作业(自测)试卷(47148)

《科技英语》第四阶段在线作业（自测）试卷(47148)1．第1题单选题Pleasebearinmindthatcorrectconductionofprecautionscanreduceor______watersidecorrosiontotheminimum.A、exportB、diminishC、embraceD、entrap标准答案：B2．第2题单选题Itwasin2005_____webegantointroducethisnewtechniqueintoourcompany.A、whichB、thenC、whenD、that标准答案：D3．第3题单选题WhenBobandhisfriendscame,we____oursupperthen.A、hadB、werehavingC、haveD、arehaving标准答案：B4．第4题单选题______issheinLondonthansheringsupheroldfriendMary.A、ScarcelyB、RarelyC、NosoonerD、Hardly标准答案：C5．第5题单选题Ifit_____tomorrow,wewillstayindoorstohaveourtrainingclass.A、rainsB、rainedC、willrainD、israining标准答案：A6．第6题单选题He____themathsexaminationifhehadworkedhardenough,buthedidn't.A、wouldpassB、hadpassedC、wouldhavepassedD、passed标准答案：C7．第7题单选题Youmustspeakslowly,sothatyoucanmakeyourself________.A、understoodB、understandC、understandingD、tounderstand标准答案：A8．第8题单选题Therearetworoomsinthehouse,____servesasakitchen.A、thesmallerofwhichB、thesmallerofthatC、thesmallestofwhichD、thesmallestofthat标准答案：A9．第9题单选题IknowJonathanquitewellandneverdoubthecandoagoodjobofit.A、whileB、thatC、whenD、what标准答案：B10．第10题单选题Themethodsusedtoachievetheseaimswillbedescribedlater,and______canbeseenbroadlyasafocusingontoatarget.A、uptonowB、sofarC、asyetD、forthepresent标准答案：D11．第11题单选题Amarineshale,oncebelievedtobeablackmudrichinorganiccompounds,isacommonsourcerockto______oil.A、blockB、discoverC、originateD、prevent标准答案：C12．第12题单选题Heleftordersthatnothing______untilthepolicearrived.A、wastouchedB、hadbeentouchedC、shouldbetouchedD、wastobetouched标准答案：C13．第13题单选题Theyaretryingto______thewastedischargedbythefactoryforprofit.A、exposeB、exhaustC、exhibitD、exploit标准答案：D14．第14题单选题Forthetimebeing,Philipscouldnotsaywhensuchaproductasthismightbe______available,however.A、verticallyB、commerciallyC、horizontallyD、rapidly标准答案：B15．第15题单选题BythetimehearrivesinBeijing,we________herefortwodays.A、willstayB、havebeenstayingC、willhavestayedD、havestayed标准答案：C16．第16题单选题Everycountrytriestomaintaina(n)______balanceoftrade,whichassuresitofthemeanstobuynecessaryimports.A、organicB、favoriteC、compoundD、favorable标准答案：D17．第17题单选题Howmanymoredecadeswillhavetopassscientistssucceedinprovidingacureforcancer？A、whenB、beforeC、sinceD、until标准答案：B18．第18题单选题Itisthebusinessofthepetroleumindustrytofindcrudeoilandgasandto______themfromtheearthon-shoreandoff-shore.A、retrieveB、exchangeC、proceedD、change标准答案：A19．第19题单选题Thankheavens!Youhavecomebackhome.Youshouldbethankfulthatyouhaveescapedwithonly______injuries.A、minorB、majorC、significantD、abundant标准答案：A20．第20题单选题Wemustputthe______sideofthepolicyintoconsiderationtoavoidpossiblemistakes.A、converseB、reverseC、reserveD、revise标准答案：B