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1、高中英語閱讀理解專題訓(xùn)練（廣東專版每篇5小題）（第6套）第一節(jié)：閱讀理解（共15小題；每小題2分，滿分30分）閱讀下列短文，從每題所給的A、B、C和D項中，選出最佳選項，并在答題卡上將該項涂黑。A（words:332&211）Microwavesmaybegreatatwarmingupfood,butwhataboutwarmingpeople?Usingmicrowavestodirectlyheatownersofaroomwouldsavemuchoftheenergywastedbyheatingwallsandfurniture.Anddespitepop
2、ularideasaboutmicrowaves,thistechniquewouldbesafe,accordingtoCharlesR.BurlieroftheMicrowaveResearchCenterinMarlborough,NewHampshire.Low-powermicrowavesonlypenetrate(貫穿)theskin(low-powermicrowavepenetrationinahamisabout0.2inches,forexample)andwithnonegativeeffects.Totestthisidea,Bufflers
3、ubjectedhimselftomicrowavesinaspecialroomusingastandard500-watt,2459MHzmagnetron(磁控管).Hefoundthatapersonwillstarttofeelwarmthataboutilliwattspersquarecentimeter(mw./sq.cm.);asatisfactoryfeelingofwarmthoccursbetween35and50mw./sq.cm.Bycomparison,apersonstandinginnoondaysummersunfeelstheam
4、ountof85mw./sq.cm.Andafrozenmeatpieinyourmicrowaveovenreceivesabout1000mw./sq.cm.Inhousesofthefuture,eachroomcouldbeprovidedwithitsownmagnetron,saysBuffler.Whenyousteppedintothelivingroom,forexample,amotiondetector(運動感應(yīng)器)wouldturnonthemagnetron,fillingtheroomwithlow-powermicrowaves.Inth
5、esamewaythatamicrowaveovenheatsupahamburger,butnottheplateit’son,youwouldfeelwarmthfromthemicrowaveswithoutchangingthetemperatureofyourcoffeetable.(Youcould,however,makeyourfavoriteeasychairevenmorecomfortablebytreatingitwitharadiation-absorbingchemical.)Whileitmightbesometimebeforehome
6、ownersarecomfortableenoughwiththeideatosetupwhole-bodymicrowaveheatersinhouses,Bufflersaysmicrowavesmayattractlivestock(家畜)farmers.Lambsthatarebornoutdoorsinwinter,forexample,arefrequentlylosttocold.Microwavescouldwarmthelambssafelyandquickly.41.Whichofthefollowingcantellthemainideaofth
7、epassage?A.Anewheatingsystem.B.Anewmicrowaveoven.C.Apopulartechnique.D.Themagnetron.42.AccordingtoParagraph2,whichofthefollowingdoesnotdescribethecharacteristicsofamicrowaveheater?A.Itdirectlyheatspeopleinaroom.B.Itheatswallsandfurnitureinaroom.C.Itissafe.D.Itsavesenergy．43.The
