unit1AlandofdiversityⅠ
阅读理解AAmericancultureisuniquebecauseitisformedanddevelopedundercertainconditions
Themajorfactorscontributingtothemakingofthisflewnationandtheformingofanewculturearethehardenvironment,ethnicdiversity(多民族)andpluralreligion,whichisquitedifferentfromothernationsintheworld
Whatismore,theseelementsarestillinfluencingtheAmericanculture
TheearlyimmigrantswhowereEnglishPuritanssettleddowninnortheastpartofAmerica
From1607to1892,frontierswerepushedfurtherwest
Thefrontiersmenlookedforalandofrichresourcesandalandofpromise,opportunityandfreedom
Actuallytheylookedforabetterlife
Soindividualism(个人主义),selfreliance,andequalityofopportunityhaveperhapsbeenthevaluesmostcloselyassociatedwiththefrontierheritage(遗产)ofAmerica
Inhistory,peoplefromdifferentcountriesintheworldrushedtoAmericathre