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1、Improvingsentences:(15minutes)1.Flyingforthefirsttime,theroarofthejetenginesfrightenedthebaby,andhestartedcryingastheplaneroareddowntherunway.A.theroarofthejetenginesfrightenedthebaby,andheB.theroarofthejetenginesfrighteningthebaby,andheC.theroarofthejeteng
2、ineshadfrightenedthebaby,andheD.thebabywasfrightenedbytheroarofthejetenginesandE.thebabywasfrightenedbytheroarofthejetengines,buthe2.Exposedtotheextremelylongandseverecoldspell,frostsoonkilledthebudsoftheplumtreesandtheydidnotproducefruitlastseason.A.frosts
3、oonkilledthebudsoftheplumtreesandtheydidnotproducefruitlastseasonB.soonthebudsoftheplumtreeskilledbyfrost,andthereforenotproducingfruitlastseasonC.thebudsoftheplumtreesweresoonkilledbyfrost,theydidproducefruitlastseasonD.fruitwasnotproducebytheplumtreeslast
4、seasonbecausetheirbudshadbeenkilledbyfrostE.thebudsoftheplumtreesweresoonkilledbyfrost,andthetreesdidnotproducefruitlastseason.3.Environmentalscientistsareveryconcernedaboutdangerousfluorocarbons,foundinpressurizedaerosolcanswhichquickentheerosionoftheozone
5、layer.A.aboutdangerousfluorocarbons,foundinpressurizedaerosolcanswhichquickentheerosionoftheozonelayerB.that,whileemittingdangerousfluorocarbons,pressurizedaerosolcansquickentheerosionoftheozonelayer.C.abouttheerosionoftheozonelayercausedbypressurizedaeroso
6、lcansemittingdangerousfluorocarbonsD.thatpressurizedaerosolcansemitdangerousfluorocarbons,whichquickentheerosionoftheozonelayerE.When,quickeningtheerosionoftheozonelayer,pressurizedaerosolcansemitdangerousfluorocarbons4.Theplaquewaspresentedtotheactorthatwa
7、sengravedwithgoldletters.A.TheplaquewaspresentedtotheactorthatwasengravedwithgoldlettersB.TheplaquethatwaspresentedtotheactorengravedwithgoldlettersC.TheplaquewaspresentedtotheactorwhowasengravedwithgoldlettersD.Theplaque,engravedwithgoldletters,andpresente
8、dtotheactorE.Theplaquepresentedtotheactorwasengravedwithgoldletters5.DrivingtoLasVegasfreezingrainmadetheroadslipperyandhazardous.A.DrivingtoLasVegas,A.WhilewedrovetoLasVegasB.EnroutetoLasVegasC.Todriv
