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And,or,but构成的并列复合句大庆市五十一中学贺东辉复合句复合句：由两个或者两个以上的主语谓语构成的句子叫做复合句1)Weknowheisverybrave（复合句）2)Theycameherebutnobodywasin（复合句）3)DamingandLilingrunaway.（简单句）并列复合句的构成•简单句+连词+简单句1.TomwentoutandMaryfellasleep.2.Wecamehereearlybutwedidn’tbuyanything.3.Youmustbequickoryouwillfallbehind.and的用法and用来连接两个并列的句子，句子往往前后时态相同.1)Iamateacherandheisaworker.2)ShewasreadingandDamingwassinging.3)Theweatherisniceandwefeelwarm.or的用法1.表示选择关系1)YoucangowithmeoryoucanwatchTVathome.2)Linglingcansingasongorshecandanceifhelikes.2.表示否则1)Wemusthurryorwecan’tcatchthetrain.2)Theyshouldtellmethetruthorwecan’thelpthem.but的用法表示与前面的情况相反1)Wecalledhimtwicebuthedidn’tanswer.2)Shegaveme$100,butIrefused.作为转折连词，but前面逗号可以加，可以不加.但是作为插入语，则前后必须加逗号3)Iknowyourmeaning,but,Ican’tacceptyourgift.4)Thebusiscoming,but,there’snoemptyseatonit.exercise1.Studyhard________youwillmakeprogress.2.Doyouwanttotellhimyourself_______Itellhimmyself?3.It’sraininghard________nobodywantstoleave.4.Wesawhim_______hesawus.5.Wemustn’twakehimup________hewillbeangry.6.Ihopeyoucanvisitmeoften______Iwillforgetyou.7.Damingwentout________heleftamessage8.Tomwastired_______hefellasleepsoon.9.Wewanttohelphim_________wecan’t10.Youcanchooseacheapone______youcanmakeitbyyourself.