中石华东《科技英语》2013年秋学期在线作业(四)(第4次)

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1、中石华东《科技英语》2013年秋学期在线作业(四)(第4次)《科技英语》2013年秋学期在线作业（四）一、单选题1.____twice,thepostmanrefusedtodeliverourlettersunlesswechainedourdog.A.BeingbittenB.BittenC.HavingbittenD.Tobebitten正确答案：B2.WhenBobandhisfriendscame,we____oursupperthen.A.hadB.werehavingC.haveD.arehaving正确答案：B3.Forthetimebeing

2、,Philipscouldnotsaywhensuchaproductasthismightbe______available,however.A.verticallyB.commerciallyC.horizontallyD.rapidly正确答案：B4.Thankheavens!Youhavecomebackhome.Youshouldbethankfulthatyouhaveescapedwithonly______injuries.A.minorB.majorC.significantD.abundant正确答案：A5.IknowJonathanqui

3、tewellandneverdoubt______hecandoagoodjobofit.A.whileB.thatC.whenD.what正确答案：B6.Itwasin2005_____webegantointroducethisnewtechniqueintoourcompany.A.whichB.thenC.whenD.that正确答案：D7.Manychildren,_______parentsareawayworkinginbigcities,aretakengoodcareofinthevillage.A.theirB.whoseC.whomD.t

4、hose正确答案：B8.Itisthebusinessofthepetroleumindustrytofindcrudeoilandgasandto______themfromtheearthon-shoreandoff-shore.A.retrieveB.exchangeC.proceedD.change正确答案：A9.______issheinLondonthansheringsupheroldfriendMary.A.ScarcelyB.RarelyC.NosoonerD.Hardly正确答案：C10.He_____havecompletedhiswor

5、k;otherwise,hewouldn'tbeenjoyinghimselfbytheseaside.A.shouldB.mustC.wouldD.can正确答案：B11.Pleasebearinmindthatcorrectconductionofprecautionscanreduceor______watersidecorrosiontotheminimum.A.exportB.diminishC.embraceD.entrap正确答案：B12.Therearetworoomsinthehouse,____servesasakitchen.A.thes

6、mallerofwhichB.thesmallerofthatC.thesmallestofwhichD.thesmallestofthat正确答案：A13.Theannualincomeofschoolteachersinthisplacewas______at＄900.A.processedB.assessedC.summarizedD.valued正确答案：B14.Scientistshavediscoveredgeneticvariationsthatmakepeoplemorelikelytoget______oncigarettesandmorep

7、ronetodeveloplungcancer.A.retainedB.hookedC.tiredD.hanged正确答案：B15.Theyaretryingto______thewastedischargedbythefactoryforprofit.A.exposeB.exhaustC.exhibitD.exploit正确答案：D16.Hearingthejoke,allthestudentsburstinto______laughter.A.visualB.long-standingC.spontaneousD.contributing正确答案：C17.

8、Myuncle'shouseinthe