U7 Grammar(1)

Grammar,Adverbialclausesofreasontelluswhythingshappen.Weusuallyusebecause,asandsincetostartadverbialclausesofreason.,AAdverbialclausesofreason,原因状语从句,Adverbialclauseofreason,Mainclause,adverbial,主句,状语,（1）because引导的原因状语从句表示的因果关系语气最强，常用来回答why提出的问题。如：,IdidntgobecauseIwasafraid.,（2）as引导的原因状语从句语气最弱，它所表示的原因只是对结果的附加说明，可位于句首或句末。如：,IleftamessageasJimwasnthere.,（3）since引导的原因状语从句语气次于because，常表示稍加分析便能得出来的原因，或人们已知的事实，意为“既然；鉴于”，常置于句首。如：,Sincetheweatherissobad,wehavetodelayourjourney.,nooneelsesawthesealiens,Irefusetobelieveyou.,Wecanalsoputtheadverbialclauseofreasonafterthemainclause.,nooneelsesawthesealiens.,Irefusetobelieveyou,Thingstoremember,Whenweputtheadverbialclauseofreasonatthebeginningofthesentence,weoftenseparateitfromthemainclausewithacomma(,).,ThepoliceofficeraskedTomsomemorequestionsaboutthealiens.Matchthequestionswiththeanswers.Thenusethemtocompletethepoliceofficersnoteswithas,sinceorbecause.,1（because）Tinawassurethatsomethinglandedintheforestnearthehillsbecausesheheardaloudnoiselastnight.（as）3（Because）4（Since）,Sincenooneelsesawthesealiens,ourfatherrefusedtobelieveus.,Becauseanaliensawusandmadeaterriblenoise,weranaway.,TinaandIhidbehindsomebushesasweheardsomevoicesspeakingastrangelanguage.,Bbecauseof,Wecanalsousebecauseoftogivethereasonforsomething.,Theywenttotheforestbecauseoftheircuriosity.Tinawokeupatmidnightbecauseofaloudnoise.Shedecidedtoexploretheforestbecauseofit.,becauseofcuriositymidnightdecidetoexplore,因为；由于,好奇心,午夜；子夜,决定做,探索,Workouttherule,Wecanuseanoun,anounphraseora（subjectpronoun/objectpronoun）afterbecauseof.,Writesentencesaboutthestoryonpage99byusingbecauseof.,1.Tinawassurprised/theyellowlightintheskyTinawassurprisedbecauseoftheyellowlightinthesky.2.Thealienslandedonthisplanet/anaccidentThealienslandedonthisplanetbecauseofanaccident.3.Thechildrenranawayfromtheforest/thealiensThechildrenranawayfromtheforestbecauseofthealiens.4.Theirdadwasnotsureaboutthechildrensstory/thewritingonthepieceofpaperTheirdadwasnotsureaboutthechildrensstorybecauseofthewritingonthepieceofpaper.,because和becauseof的区别,becauseof和because的意思都是“因为”，其区别为：becauseof后面接名词或名词短语，because后面接从句。请对比：Theydidntgotothemuseumbecauseoftherain.(rain是名词)Theydidntgotothemuseumbecauseitrained.(itrained是句子)他们因为下雨没去博物馆。,选用because，since或as填空。1.Whydontyoucometohavedinnernow?_Iambusywithmywork.2._itwasraining,hetookabus.3._Ihadacoldyesterday,Iwasabsentfromschool.,As/Since/Because,Because,Since/As/Because,选择最佳答案填空。()1.Icalledthepolice_theterriblenoise.A.becauseofB.becauseC.sinceD.as()2._Imverytired,Iamgoingtobedearly.A.UntilB.AsC.ThoughD.While()3._nooneknowsthetruth,wedontbelievewhathesaid.A.WhetherB.WhenC.WhileD.Since()4.Webelievetherearealiens_thesephotosofUFOs.A.sinceB.becauseC.asD.becauseof,D,A,B,D,根据中文意思完成句子。1.因为下雨，运动会延期了。Thesportsmeetingwasputoff_therain.2.你既然错了，就应该道歉。Youshouldapologize_.3.我肚子痛，因为吃了太多冰淇淋