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Unit8

Nothingistobegotwithoutpainsbutpoverty.

世上唯有贫穷可以不劳而获。

学习内容题材词数建议时间得分统计做题备忘

PartAText1科普知识429/10

Text2商业经济421/10

Text3文化教育457/10

Text4社会生活432/10

PartB科普知识592/10

PartC文化教育479/10

PartA

Directions：Readthefollowingtexts.Answerthequestionsbloweachtextbychoosing[A],[B],[C]

or[D].

Text1

Trafficstatisticspaintagloomypicture.Tohelpsolvetheirtrafficwoes,somerapidly

growingU.S.citieshavesimplybuiltmoreroads.Buttrafficexpertssaybuildingmoreroadsisa

quick-fixsolutionthatwillnotalleviatethetrafficprobleminthelongrun.Soaringlandcosts,

increasingconcernoversocialandenvironmentaldisruptionscausedbyroad-building,andthe

likelihoodthatmoreroadscanonlyleadtomorecarsandtrafficarepowerfulfactorsbearing

downona1950s-styleconstructionsprogram.

Thegoalofsmart-highwaytechnologyistomaketrafficsystemsworkatoptimumefficiency

bytreatingtheroadandthevehiclestravelingonthemasanintegraltransportationsystem.

Proponentsofthisadvancedtechnologysayelectronicdetectionsystems,closed-circuittelevision

radiocommunication,rampmetering,variablemessagesigning,andothersmarthighway

technologycannowbeusedatareasonablecosttoimprovecommunicationbetweendriversand

thepeoplewhomonitortraffic.

Pathfinder,aSantaMonica,California-basedsmart-highwayprojectinwhicha14-