PAIREDREADExpositoryTextHowHorsesChangedtheWorldbyJaneBuxtonFromCacaotoChocolateSTRATEGIES&SKILLSComprehensionStrategy:RereadSkill:CauseandEffectVocabularyStrategyContextCluesVocabularyindustrial,inefficient,manipulation,modification,mutated,nutrients,sparse,surplusContentStandardsSocialStudiesHistoryPhotographyCredit:HishamIbrahim/Photographer’sChoice/GettyImages**Thetotalwordcountisbasedonwordsintherunningtextandheadingsonly.Numeralsandwordsincaptions,labels,diagrams,charts,andsidebarsarenotincluded.WordCount:2,450**ACopyright©TheMcGraw-HillCompanies,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedordistributedinanyformorbyanymeans,orstoredinadatabaseorretrievalsystem,withoutthepriorwrittenconsentofTheMcGraw-HillCompanies,Inc.,including,butnotlimitedto,networkstorageortransmission,orbroadcastfordistancelearning.Sendallinquiriesto:McGraw-HillEducationTwoPennPlazaNewYork,NewYork10121ISBN:978-0-02-118583-2MHID:0-07-118583-2PrintedintheUnitedStates.123456789DOC151413121110HowHorsesChangedtheWorldbyJaneBuxtonPAIREDREADIntroduction..................................2Chapter1HorsesWidenHorizons.........................4Chapter2HorsesatWork................................8Chapter3HorsesToday.................................12Conclusion...................................17RespondtoReading...........................18FromCacaotoChocolate............19Glossary.....................................22Index........................................23FocusonSocialStudies........................24EssentialQuestionHowdopeoplebenefitfrominnovation?ATLANTICOCEANIntroductionWhofirsttamedwildhorsesandthenrodethem?Howdidwildhorsesbecomewillingandhardworkinganimalsforhumanstouseineverydaylife?Howhastheroleofhorseschangedovertime?Althoughthedetailsofhowhorsesbegantobedomesticatedareunclear,archaeologistsbelievetheyknowwhereandwhenithappened.TheysayitbeganinKazakhstanandMongolia,probablyabout5,500yearsago.KazakhstanandMongoliamakeupalargepartofCentralAsia.AFRICANORTHAMERICAEU...