2018届高三英语总复习第一部分回归教材Unit3Inventorsandinventions课时作业新人教版.docx

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1、Unit3InventorsandinventionsⅠ.阅读理解(2017·河北省冀州中学高三年级考试)Almosteverymachinewithmovingpartshaswheels,yetnooneknowsexactlywhenthefirstwheelwasinventedorwhatitwasusedfor.Wedoknow,however,thattheyexistedover5,500yearsagoinancientAsia.Theoldestknowntransportwhee

2、lwasdiscoveredin2002inSlovenia.Itisover5,100yearsold.Evidencesuggeststhatwheelsfortransportdidn'tbecomepopularforawhile,though.Thiscouldbebecauseanimalsdidaperfectlygoodjobofcarryingfarmingtoolsandhumansaround.Butitcouldalsobebecauseofadifficultsituatio

3、n.Whilewheelsneedtorollonsmoothsurfaces,roadswithsmoothsurfacesweren'tgoingtobeconstructeduntiltherewasplentyofdemandforthem.Eventually,roadsurfacesdidbecomesmoother,butthisdifficultsituationappearedagainafewcenturieslater.Therehadbeennoimportantchanges

4、inwheelandvehicledesignbeforethearrivalofmodernroaddesign.Inthemid1700s,aFrenchmancameupwithanewdesignofroad—abaselayer(层)oflargestonescoveredwithathinlayerofsmallerstones.AScotsmanimprovedonthisdesigninthe1820sandastrong,lastingroadsurfacebecamearealit

5、y.Ataroundthesamelime,metalhubs(thecentralpartofawheel)cameintobeing,followedbythewheelsthatwereinventedin1967,sixtyyearsaftertheappearanceoftarmacroads(柏油路).Aswheeldesigntookoff,vehiclesgotfasterandfaster.1．Whatmightexplainwhytransportwheelsdidn'tbecom

6、epopularforsometime?A．Fewknewhowtousetransportwheels.B．Humanscarriedfarmingtoolsjustaswell.C．Animalswereagoodmeansoftransport.D．Theexistenceoftransportwheelswasnotknown.2．Whatdoweknowaboutroaddesignfromthepassage?A．Itwaseasierthanwheeldesign.B．Itimprove

7、dafterbigchangesinvehicledesign.C．Itwaspromotedbyfastmovingvehicles.D．Itprovidedconditionsforwheeldesigntodevelop.3．Howisthelastparagraphmainlydeveloped?A．Bygivingexamples.B．Bymakingcomparisons.C．Byfollowingtimeorder.D．Bymakingclassifications.4．Whatisth

8、epassagemainlyabout?A．Thebeginningofroaddesign.B．Thedevelopmentoftransportwheels.C．Thehistoryofpublictransport.D．Theinventionoffastmovingvehicles.答案与解析轮子是什么时候发明的呢？最早的用途又是什么呢？这些问题无人能回答。但是我们知道，轮子存在的时间已经超过5500年。1．C　细节理解题。由第二段第四句“Thi