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1、江西省横峰县2016-2017学年高二英语下学期第7周周练试题（无答案）第一部分（共4小题，每小题2.5,共10分）阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。Almosteverymachinewithmovingpartshaswheels,yetnooneknowsexactlywhenthefirstwheelwasinventedorwhatitwasusedfor.Wedoknow,however,thattheyexistedover5,500year
2、sagoinancientAsia.Theoldestknowntransportwheelwasdiscoveredin2002inSlovenia.Itisover5,100yearsold・Evidencesuggeststhatwheelsfortransportdicin'tbecomepopularforawhile,though.Thiscouldbebecauseanimalsdidaperfectlygoodjobofcarryingfarmingtoolsandhumansaround.Buti
3、tcouldalsobebecauseofadifficultsituation.Whilewheelsneedtorollonsmoothsurfaces,roadswithsmoothsurfacesweren，tgoingtobeconstructedunti1therewaspientyofdemandforthem.Eventually,roadsurfacesdidbecomesmoother,butthisdifficultsituationappearedagainafewcenturieslate
4、r-Therehadbeennoimportantchangesinwheelandvehicledesignbeforethearrivalofmodernroaddesign.Inthemid-1700s,aFrenchmancameupwithanewdesignofroad一abaselayeroflargestonescoveredwithathinlayerofsmallerstonos.AScotsmanimprovedonthisdesigninthe1820sandastrong,lastingr
5、oadsurfacebecameareality・Ataroundthesametime,metalhubs（thecentralpartofawheel）cameintobeing,followedbythepneumatictyre（充气轮胎）in1846.Alloywheelswereinventedin1967,sixtyyearsaftertheappearanceoftarmackedroads（柏油路）・Aswheeldesigntookoff,vehiclesgotfasterandfaster・2
6、4.Whatmightexplainwhytransportwheelsdicin'tbecomepopularforsometime?A.Fewknewhowtousetransportwheels.B.Hum。nscarriedfarmingtoolsjustaswe11.C.Animalswereagoodmeansoftransport.D.Theexisteneeoftransportwheelswasnotknown.24.Whatdoweknowaboutroaddesignfromthepassag
7、e?A.Itwaseasierthanwheeldesign・B.Itimprovedafterbigchangesinvehicledesign.C.Itwaspromotedbyfast-movingvehicles.D.Itprovidedconditionsforwheeldesigntodevelop.25.Howisthelastparagraphmainlydeveloped?A.Bygivingexamples・Bymakingcomparisons.C.Byfollowingtimeorder.D
8、.Bymakingclassifications.26.Whatisthepassagemainlyabout?A.Thebeginningofroaddesign・B.Thedevelopmentoftransportwheels.C.Thehistoryofpublictransport.D.Theinventionoffast-movingvehicl
