广西专用高考英语一轮复习考点规范练21(含解析)新人教版.pdf

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考点规范练21

Ⅰ.阅读理解

Indianscientistshavedesignedanewdevicewhichtheyhopewillsolveoneof

thebiggestproblemswiththeuseofsolarenergy.Theycallthedeviceasolartree.

Solartreeshavemetal“branches”extendingfromatall,centralpoleatdifferent

levels.Eachbranchholdsaphotovoltaic(光电的)panel,alsocalledasolarpanel.

Thesepanelsareflatsurfacesthatcollectenergyfromthesunandturnitinto

electricity.

DaljitSinghBediisthechiefscientistattheCouncilofScientificand

IndustrialResearch,orCSIR,inNewDelhi,India.TheCSIRlaboratoriesarewhere

thesolartreewasdesigned.Bedisaystheshapeofthesolartreemakesitpossible

tofitmorephotovoltaicpanelsinaspacethantraditionalsystemsdo.“Ittakes

about4squaremetresofspacetoproduceenergywhichotherwisewouldhaverequired

400squaremetresofspace,”hesays.

Scientistsbelievetheenergyasolartreecollectswillbeenoughtopowerfive

homes.Thesolartreeswillmakeiteasiertoprovidesolarenergyforhomesin

cities,theysay.Thesolartreeswillalsotakelessspacefromfarmersinrural

areas.Andtheywillcollectmoreenergythannormalphotovoltaicpanelsonthetops

ofbuildings,becausetheirdesignhelpswithplacementofsolarpanelsinawaythat

theyareexposedmoretothesun.

Indiaistheworld’sthirdlargestproducerofgreenhousegases.Thecountryhas

promisedtoreduceitsrateofgreenhousegasproduction.

Thecostofphotovoltaicpanelshasgonedowninrecentyears.Thishasmade

solarpowercheaperandeasiertouse.Butitisstillnotclearhowusefulthesenew

developmentsinsolarpowertechnologyare.

1.WhatdoesBedisayaboutthesolartrees?

A.Theyareenergy-consuming.

B.Theyarespace-saving.

C.Theyareeas

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