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108ParagraphUnityTherearefourwaystoachievecoherence:1.Repeatkeynouns.2.Useconsistentpronouns.3.Usetransitionsignalstolinkideas.4.Arrangeyourideasinlogicalorder.Exercises:Thethreeparagraphsthatfollowalldiscussthesametopic.Onlyoneofthemshowsunity.Firstreadtheparagraphs.Thenanswerthesequestions.1.Whichparagraphhasunity?2.Whichparagraphdoesnothaveunitybecauseitdiscussestwodifferenttopics?3.Whichparagraphdoesnothaveunitybecauseithassentencesthatarenotrelatedtothemaintopic?Paragraph1EffectsofColorColorscreatebiologicalreactionsinourbodies.Thesereactions,inturn,canchangeourbehavior.Inonestudy,prisonerswereputinapinkroom,andtheyunderwentadrasticandmeasurabledecreaseinmusclestrengthandhostilitywithin2.7seconds.Inanotherstudy,athletesneedingshortbW:stsofenergywereexposedtoredlight.Theirmusclestrengthincreasedby13.5percent,andelectricalactivityintheirarmmusclesincreasedby5.8percent.Athletesneedingmoreenduranceforlongerperformancesrespondedbestwhenexposedtobluelight.Otherstudieshaveshownthatthecolorgreeniscalming.GreenwasasacredcolortotheEgyptians,representingthehopeandjoyofspring.ItisalsoasacredcolortoMoslems.Manymosquesandreligioustemplesthroughouttheworldusegreen(thecolorofrenewalandgrowth)andblue(thecolorofheaven)tobalanceheavenlypeacewithspiritualgrowth.Tosumup,colorinfluencesusinmanyways(Daniels10).'Paragraph2EffectsofColorColorscreatebiologicalreactionsinourbodies.Thesereactions,inturn,canchangeourbehavior.Inonestudy,prisonerswereputinapinkroom,andtheyunderwentadrasticandmeasurabledecreaseinmusclestrengthandhostilitywithin2.7seconds.Inanotherstudy,athletesneedingshortburstsofenergywereexposedtoredlight.Theirmusclestrengthincreasedby13.5percent,andelectricalactivityintheirarmmusclesincreasedby5.8percent.Athletesneedingmoreenduranceforlongerperformancesrespondedbestwhenexposedtobluelight.Otherstudieshaveshownthatthecolorgreeniscalming.AfterLondon'sBlackfriarsBridgewaspaintedgreen,thenumberofsuicidesdecreasedby34percent.Theseandotherstudiesclearlydemonstratethatcoloraffectsnotonlyourmoodsbutourbehavioraswell(Daniels10).Paragraph3EffectsofColorColorscreatebiologicalreactionsinourbodies.Thesereactions,inturn,canchangeourbehavior.Inonestudy,athletesneedingshortburstsofenergywereexposedtoredlight.Theirmusclestrengthincreasedby13.5percent,andelectricalactivityintheirarmmusclesincreasedby5.8percent.Athletesneedingmoreenduranceforlongerperformancesrespondedbestwhenexposedtobluelight.Blueisnotagoodcolorfordinnerware,however.Foodlookslessappetizingwhenitisservedonblueplates,perhapsbecauseveryfewfoodsinnatureareofthatcolor.Otherstudieshaveshownthatthecolorgreeniscalming.AfterLondon'sBlackfriarsBridgewaspaintedgreen,thenumberofsuicidesfromitdecreasedby34percent.Itisclearthatcoloraffectsnotjustourmoods,butourbehavioraswell(Daniels10).B.Bothofthefollowingparagraphsbreaktheruleofunitybecausetheycontainoneormoresentencesthatareoffthetopic.Step1Locateandunderlinethetopicsentenceofeachparagraph.Step2Crossoutthesentenceorsentencesthatareoffthetopic.Paragraph1Adventuretravelisthehottrendinthetourismindustry.OrdinarypeoplearenolongercontenttospendtheirtwoweeksawayfromtheofficerestingonasunnybeachinFlorida.Moreandmoreoften,theyarechoosingtospendtheirvacationsraftingdownwildrivers,hikingthroughsteamyrainforests,climbingtheworld'shighestmountains,orcrossingslipperyglaciers.JPeopleofallagesarechoosingeducationalstudytoursfortheirvacations.Paragraph2Daredevilsportsarealsobecomingpopular.Youngpeopleespeciallyareincreasinglywillingtorisklifeandlimbwhilemountainbiking,backcountrysnowboarding,orhigh-speedskateboarding.SoccerisalsopopularintheUnitedStatesnow,althoughfootballisstillmorepopular.Oneoftheriskiestnewsportsisskysurfing,inwhichpeoplejumpoutofairplaneswithboardsattachedtotheirfeet.Skysurfingrivals4skydivingandbungeejumpingfortheamountofthrillsandrisk.QuestionstoaskYourself:Step1Decidewhereeachparagraphshouldbedividedintotwoparagraphs.Underlinethetopicsentenceofeach.Step2Findsentence(s)thatareoffthetopicandcrossthemout.1glaciers:slowlymovingriversofice2daredevil:verydangerous3lifeandlimb:deathandinjury(idiom)4rivals:competeswith