大学英语四级辅导系列讲座-阅读

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1、大学英语四级辅导系列讲座阅读理解大学英语四级考试阅读基础要求问题分析能力及答题技巧篇章分析能力长句分析能力词汇理解词汇的理解(一)表示强烈转折的词汇(二)表示因果关系的词汇(三)表示观点、态度、结论的词汇yetButhoweverinfactneverthelessindeedvirtuallypractically（一）表示强烈转折的词汇Asteroids(小行星）arebiggerversionsofthemeteoroids（流星体）thatraceacrossthenightsky.MostorbitthesunfarfromEarthanddon’tthreatenus.B

2、uttherearealsothousandsofasteroidswhoseorbitsputthemonacollisioncoursewithEarth.WhatdoscientistssayaboutthecollisionofanasteroidwithEarth?(A)Itisveryunlikelybutthedangerexists.(B)Suchacollisionmightoccuronceevery25years.(C)CollisionsofsmallerasteroidswithEarthoccurmoreoftenthanexpected.(D)It’ss

3、tilltooearlytosaywhethersuchacollisionmightoccur.√Thesensationofsound（声音响亮）involvesavarietyoffactorsinadditiontoitspeaklevel.Advertisersareskillfulatcreatingtheimpressionofloudnessthroughtheirexpertuseofsuchfactors.Onemajorcontributortotheperceivedloudnessofcommercialsisthatmuchlessvariationins

4、oundleveloccursduringacommercial.Inregularprogrammingtheintensityofsound（声音强度）variesoveralargerange.However,soundlevelsincommercialstendtostayatornearpeaklevels.Commercialscreatethesensationofloudnessbecause____.(A)TVstationsalwaysoperatedatthehighestsoundlevels(B)Theirsoundlevelsarekeptaroundp

5、eaklevels(C)Theirsoundlevelsarekeptinthemiddlefrequencyranges(D)Unlikeregularprogramstheirintensityofsoundvariesoverawiderange√Historically,mostphysical-fitnesstestshaveusuallyincludedmeasuresofmuscularstrengthandendurance,notforhealth-relatedreasons,butprimarilybecausesuchfitnesscomponentshave

6、beenrelatedtoperformanceinathletics.However,inrecentyears,evidencehasshownthattrainingprogramsdesignedprimarilytoimprovemuscularstrengthandendurancemightalsooffersomehealthbenefitsaswell.TheAmericanCollegeofSportsMedicinenowrecommendsthatweighttrainingbepartofatotalfitnessprogramforhealthyAmeri

7、cans.IncreasedparticipationinsuchtrainingisoneofthespecificphysicalactivityandfitnessobjectivesofHealthyPeople2000:NationalHealthPromotionandPreventionObjectives.Traditionally,peopleweregivenphysicalfitnesstestsinordertofindout___