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1、Artworld学习目标GivingreasonswithbecauseGivingreasonswithsinceandas班级检测目标学习重难点GivingreasonswithbecauseGivingreasonswithsinceandas学习过程学生纠错（二次备课）一、课前导学预习P70-71后，翻译下列句子：1）Westayedathomebecauseitrained.2）Whydidn’thecome?Becausehewasill.3）MystomachhurtsbecauseIhaveeatentoomanyapples.4）---Whydoyouloveher?--
2、-Becausesheiskind.5）Hewalkedtothecompanybecausehisbikewasbroken.6)SinceIknowverylittleJapanese,Ican’tcatchwhatyousaid.7)AsMingmingwasnotready,ewentwithouthim.8)SincetheoutbreakoftheEbolainWestAfrica,manypeopleareafraidtotraveltoAfrica.二、课堂助学1.Checktheanswers.2.Lead-inAskthequestion“whydoyoucometos
3、chool?”3.PresentationA.Givingreasonswithbecause1)because语气最强，表直接原因，回答why的问题。通常放在主句之后，可单独使用。如：WhydowelearnEnglish?Welearnitbecausewewanttohaveabetterfuture.2)because可引导表语从句等。(1)Itisbecauseyou’reeatingtoomuch.(2)Haveyoueverwalkedintoaroomandfeltrelaxed?Itcouldbebecausethewallswerepaintedblue.3)becau
4、seof也可表达直接的原因，只不过其后接名词、代词或动名词。(1)Hecan’tcomebecauseofhisillness.(2)Heisherebecauseofyou.4)because习惯上不与so连用汉语习惯上说“因为…所以…”，但英语习惯上却不能将so与because连用：因为我病了半年，所以把工作丢了。误：BecauseIwasillforsixmonths,soIlostmyjob.正：BecauseIwasillforsixmonths,Ilostmyjob.正：Iwasillforsixmonths,soIlostmyjob.B.Givingreasonswithsi
5、nceandassince侧重主句，意思是“既然；由于；因为”，表示已知的、显然的理由，since比as语气稍强，且比as略微正式，它们引导的从句通常放在主句之前，有时也放在主句之后。不表示直接原因。Since可用于省略句，而其他连词不行。（见例2）1.Sinceeveryoneishere,let'sstart2.Sinceso,Ihavenothingtosay.3.Sinceyouarewrong,youshouldsaysorry.as鉴于主从并重，从句说原因，主句说结果。1.Asitislate.Imustgo2.Asyouwerenotthere,Ileftamessage.a
6、s和since的用法大体相同，表示附带说明的“双方已知的原因”或者理由不是很重要，但语气更弱，没有since正式，常译为“由于，鉴于”。Asitisraining,you’dbettertakeataxi.既然在下雨，你最好乘出租汽车。Asyouaretired,youhadbetterhavearest.既然累了，你最好休息一下。一、当堂检测1)用as,since,because,becauseof填空(1)Marymissedthetrain___________shearrivedlate.(2)Itwillrain,__________theskyisdark.(3)_______
7、___weliveneartheriver,wecanoftengoswimminginsummer.(4)WhydoyoulikeEnglish?_____________it’ssointeresting.(5)________agoodteacher,heworkedveryhard.(6)______________theheavyrain,wehadtostayinside.(7)________itisSun
