问题标题:
【阅读理解Freeenergyiseverywherearoundus.Therearemanywaystomakeandcollectenergyfromvarioussourceslikesunwindandwater.Peoplealsorealizethateverydaystuffcanbeasource】
问题描述:

(1)

(2)

阅读理解

  Freeenergyiseverywherearoundus.Therearemanywaystomakeandcollectenergyfromvarioussourceslikesunwindandwater.Peoplealsorealizethateverydaystuffcanbeasourceofenergytoo.Forexampleridingabikerunningorjustwalkingetc.Wesimplyhavetochangeourwayofthinkingifwewanttochangetheworld.

  Socomestheideaofsolarroadways.Aretheytheroadoffuture?Whyuseroadsjustfordrivingandcollectingtolls(过路费)?Whydon’tweusethemforcollectingenergy?

  TheUSDepartmentofTransportationrecentlyawarded$100000toSolarRoadwaystobuildthefirsteverSolarRoadPanel.Sohowdothesefutureroadswork?

  TheSolarRoadPanelswillcontainembedded(嵌入的)LEDswhich“paint”theroadlinesfrombeneathtoprovidesafernighttimedrivingaswellastogivedriversinstantinstructionssuchasdetour(绕行)ahead.Theroadwillbeabletosensewildlifeontheroadandcanwarndriversto“slowdown”.Therewillalsobeembeddedheatingelementsinthesurfacetopreventsnowandicebuildupprovidingsaferwinterdriving.

  Replacingasphalt(沥青)roadsandparkinglotswithSolarRoadwayPanelswillbeamajorsteptowardstoppingclimatechange.Fullyelectricvehicleswillbeabletorechargealongtheroadwayandinparkinglotsfinallymakingelectriccarspracticalforlongtrips.

  Wejustcan’twaittoseemoreoftheseroadsallovertheworldinthenearfuture.

Thefirstparagraphservesasa(n)________.

[  ]

A.

argument

B.

comment

C.

explanation

D.

background

WhichofthefollowingisNOTtrueofLEDs?

[]

A.

马庆绵回答:
  答案:1.D;2.A;3.B;4.C;
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