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2019-2020年高考英语一轮复习Module2TheRenaissanceTrafficJam课时作业提升练外研版必修建议用时35分钟Ⅰ.阅读理解A Manypeoplehavelongdreamedofbeingabletoflyaroundassimplyasridingabicycle.Yetthesafetyandstrengthofaflyingbikewasalwaysabigproblem.Overthepast10yearsdevelopmentsintechnologyhavemovedthedreamofpersonalflyingvehiclesclosertoreality.Nowtwogroupsofinventorssaysuchvehiclesmaybeavailableverysoon.GrantStapletonfromMalloyAeronauticssaystheHoverbikewhichisabletogetinandoutofsmallspacesveryquicklywillbeatrulypersonalflyingvehicle.“Itcanbemovedacrosscontinentsveryquicklybecauseitcanbefoldedandpacked”headds.MrStapletonsayssafetywasthepany’smainconcernwhendevelopingtheHoverbike.Hesaysthedesignerssolvedthesafetyissuebyusingoverlappingrotors折叠旋翼topowerthevehicle.Thepanyistestingbothaone-thirdsizemodelandafull-sizeprototype原型oftheHoverbike.Inventorssayth...。