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1、2019-2020年八年级英语Unit6Naturaldisasters(5,6)TeachingAims:Tousebecause,as,andsincetointroducethereasonforsomething.TeachingProcedures:Step1.Freetalk:1. Whydoyougotoschool?2. Whatwillhappentopandas,iffarmerscutdowntreesandforests?3. Whywereyoulatethismorning?4.
2、 Whatwillwedo,ifitrains?5. Whatdoyouwanttobewhenyougrowup?6. Whatdoyouusuallydoafterclass?Step2.LearngrammarAbecause,as,since均表示“因为；由于”（1） because语气最强，用来回答why，可表示已知或未知的事实。它可以和only,justy以及否定此not连用。Because引导的从句一般放在主句后面。如：IplantodoitbecauseIlikeit.____________
3、____Tomdidn’tattendthemeetingbecausehewasill.________________Youshould’tgetangryjustbecausesomepeoplearenotpolitetoyou.________________________(2)as,since语气较弱，常放在主句前。as表示的原因比较明显;since常表示对方已知的事实，相当于“既然”Asalltheseatswerefull.Hehadtostandthere.___________________Asitwassn
4、owy,ittookmelongertogettoschool.______________________Sinceyouask,Iwilltellyou.________________________Sinceyou’renotinterested,Iwon’ttalkaboutit.___________________________Step3Exercises:pletethesentencesbyaddingtheconnectivesofreason.1.Ileftmyumbrellaatschool.Iwasina
5、hurry.(because)2.Iwenttobedearly.Ididn’twatchtheprogramme.(as)____________________________________________________________________3.Icouldnotdomyhomework.Itwastoodifficult.(since)____________________________________________________________________4．因为我妈妈生病了，我必需要照顾她____
6、________________________________________________________________5由于下雨,我们不上体课.7. 既然你没时间,我就不说了.Homework:教后感U6Grammar(PeriodSix)TeachingAims:1.Touse“to”-infinitivestoreportsomeone’sorders,requestsandadvice.2.Letthestudentsknowsomethingaboutasnowstorm.TeachingProcedure
7、s:StepI.Revision(writethesentencesusingtheconnectivesinbrackets)1.Idosomereading.Igotobedeveryday.(before)2.Wemustbequick.There’snotimeleft.(since)3.Thebabycried.Hedidn’tfindhismother.(as)4.Ibrushmyteethandwashmyface.Igetup.(after)StepII.PresentationGothroughtheexample
8、sonPage97.Wecanusethefollowingverbstoreportorders,requestsandadvice.(advise,ask,invite,order,remind,request,tell,warn
