第2节说明文题组训练一1话题：新型公路难度：★★建议用时：7分钟Ofalltheplasticproducedsincethe1950s，lessthan10%hasbeenrecycled.Thevastmajorityendsupbeingthrown，mostofitinlandfill.Someislefttolitterthenaturalenvironment，whereitcangetintoriversandthesea.Recycledplasticisalreadyusedtomakesomeproducts，suchasgutteringandsewagepipes.Nowattentionisturningtoroads.OnSeptember11thinZwolle，acityintheNetherlands，a30-metrebicycletrackwith70%madefromrecycledplasticandtherestfrompolypropylenewasopened.ItwillbeusedtotestaproductcalledPlasticRoad，whichisbeingdevelopedbytwoDutchfirms—KWSInfra，aroadbuilder，andWavin，afirmthatmakesplasticpiping—inpartnershipwithTotal，aFrenchoilandgasfirm.PlasticRoadisprefabricated(预制的)inafactoryasmodularsections.Thesectionsarethentransportedtothesiteandlaidendtoendonasuitablefoundation，suchassand.Becausethesesectionsareemptyinside，internalchannelscanbeinstalledintothemfordrainage(排水)，alongwithpipesforservicessuchasgasandelectricity.FortheZwolleproject，sectionsthatare2.4metreslongand3metreswidewereused.Thesewerefittedwithsensorstomeasurethingssuchastemperature，flexibilityandtheflowofwaterthroughthedrainagechannels.Ifallgoeswell，theinventorshopetodeveloptheideaandmakethesectionsentirelyfromrecycledplastic.Paths，carparksandrailwayplatformscouldfollow.Eventually，sectionsforuseasactualroadsareplanned.Thesecouldcontainsensorsfortrafficmonitoring.Intime，thecircuitsintheplasticroadsmightextendtoassistingautonomousvehiclesandrechargingelectriccarswirelessly.Prefabricatedplasticroadsshouldlasttwotothreetimeslongerthanconventionalroadsandcostless，thecompaniesclaim，mainlybecauseconstructiontimewouldbereducedbyalmosttwo-thirds.Anti-slipsurfacescouldbeused，too，includingcrushedstoneswhicharetraditionallyusedtodressroadsurfaces.Thesections，whenreplaced，canalsoberecycled.Butengineerswillbewatchingtoseehowthetrackstandsuptowearandtearandifthehollowstructurecausesresonance(共振)，whichwouldmakesucharoadextremelynoisy.语篇解读本文是一篇说明文，介绍了出现在荷兰的新型公路——PlasticRoad。1.WhatisParagraph4mainlyabout?A.ThebenefitsofPlasticRoad.B.TheprocessofmakingPlasticRoad.C.TheinspirationbehindPlasticRoad.D.ThefuturedevelopmentofPlasticRoad.答案D解析段落大意题。根据第四段的内容，尤其是“hopetodeveloptheidea...Paths，carparksandrailwayplatformscouldfollow”“sectionsforuseasactualroadsareplanned”“Intime，thecircuitsintheplasticroadsmightextendto...wirelessly”可知，本段主要涉及塑料公路未来的发展。故选D。2.Howaretheplasticroadsdifferentfromthetraditionalones?A.Theycanstayingoodconditionforalongertime.B.Theirweight-bearingcapacityisrelativelyweaker.C.Theyareentirelymadefromrecycledplasticatpresent.D.Theirconstructionismorecomplexandtime-consuming.答案A解析细节理解题。根据最后一段中的“Prefabricatedplasticroadsshouldlasttwotothreetimeslongerthanconventionalroads”可知，这种塑料公路使用寿命比传统公路长两到三倍。也就是说，相较于传统公路，塑料公路更耐用。故选A。3.What’stheauthor’spurposeofwritingthispassage?A.Toshowdifferentwaystorecycleplastic.B.Toexplainthesignificanceofrecyclingplastic.C.Toinformreadersofanewproducttobuildroads.D.Tostresstheurgencyofprotectingtheenvironment.答案C解析写作意图题。纵观全文可知，本文主要介绍了一种新型公路——塑料公路。故C项最能概括作者写作本文的主要目的。2话题：广告难度：★★建议用时：8分钟Imagineafuturewhereourstre...
