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1、高中英语阅读理解专题训练（广东专版每篇5小题）（第6套）第一节：阅读理解（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。A（words:332&211）Microwavesmaybegreatatwarmingupfood,butwhataboutwarmingpeople?Usingmicrowavestodirectlyheatownersofaroomwouldsavemuchoftheenergywastedbyheatingwallsandfurni
2、ture.Anddespitepopularideasaboutmicrowaves,thistechniquewouldbesafe,accordingtoCharlesR.BurlieroftheMicrowaveResearchCenterinMarlborough,NewHampshire.Low-powermicrowavesonlypenetrate(贯穿)theskin(low-powermicrowavepenetrationinahamisabout0.2inches,forexample)andwithnoneg
3、ativeeffects.Totestthisidea,Bufflersubjectedhimselftomicrowavesinaspecialroomusingastandard500-watt,2459MHzmagnetron(磁控管).Hefoundthatapersonwillstarttofeelwarmthataboutilliwattspersquarecentimeter(mw./sq.cm.);asatisfactoryfeelingofwarmthoccursbetween35and50mw./sq.cm.By
4、comparison,apersonstandinginnoondaysummersunfeelstheamountof85mw./sq.cm.Andafrozenmeatpieinyourmicrowaveovenreceivesabout1000mw./sq.cm.Inhousesofthefuture,eachroomcouldbeprovidedwithitsownmagnetron,saysBuffler.Whenyousteppedintothelivingroom,forexample,amotiondetector(
5、运动感应器)wouldturnonthemagnetron,fillingtheroomwithlow-powermicrowaves.Inthesamewaythatamicrowaveovenheatsupahamburger,butnottheplateit’son,youwouldfeelwarmthfromthemicrowaveswithoutchangingthetemperatureofyourcoffeetable.(Youcould,however,makeyourfavoriteeasychairevenmor
6、ecomfortablebytreatingitwitharadiation-absorbingchemical.)Whileitmightbesometimebeforehomeownersarecomfortableenoughwiththeideatosetupwhole-bodymicrowaveheatersinhouses,Bufflersaysmicrowavesmayattractlivestock(家畜)farmers.Lambsthatarebornoutdoorsinwinter,forexample,aref
7、requentlylosttocold.Microwavescouldwarmthelambssafelyandquickly.41.Whichofthefollowingcantellthemainideaofthepassage?A.Anewheatingsystem.B.Anewmicrowaveoven.C.Apopulartechnique.D.Themagnetron.42.AccordingtoParagraph2,whichofthefollowingdoesnotdescribethecharacteristics
8、ofamicrowaveheater?A.Itdirectlyheatspeopleinaroom.B.Itheatswallsandfurnitureinaroom.C.Itissafe.D.Itsavesenergy．43.The
