人教版八年级 英语 下册《Module 4 Discovery Unit 7 The unknown world》课件

GrammarModule4DiscoveryUnit

7

Theunknownworld教学目标1.掌握并在具体语境中正确运用because,since,as引导的

原因状语从句。2.掌握并在语境中正确运用becauseof来陈述原因。3.能够理解关于Val到外星球的科幻故事，并运用所学语法合理补充故事情节。Adverbialclauses

ofreasonWhydidin'tTina'sfatherbelieveher?WhywasTinalateforschool?WhydidTinaaskherscienceteacher?Whycan'tshefallasleep?

Herfatherrefusedtobelieveherbecausenooneelsesawthealiens.

Shewaslatebecauseitrainedheavily.

Sheaskedherscienceteacherbecauseshewantedtoknowmoreaboutaliens.

Shecan'tfallsleepbecauseshekeepsthinkingaboutthealiens.becauseTina'sdiaryAdverbialclauseofreason原因状语从句Adverbialclausesofreason：givereasonsGrammardiscoveryBesidesbecause,wecanalsouse

and

tostartadverbialclausesofreason.assinceArethereanyotheradverbialclausesofreason?Irefusetobelieveyousince

because

itcrashed.ThespaceshipwasdamagedTinawassurethatsomethinglandedintheforestnearthehillsassheheardaloudnoiselastnight.nooneelsesawthesealiens.MainclauseAdverbialclauseofreasonGrammardiscoveryAtthepolicestationMatchthesentences...because......as...Because...Since...TinaandTomhidbehindsomebushesastheyheardsomevoicesspeakingastrangelanguage.Becauseanaliensawthemandmadeaterriblenoise,theyranaway.Sincenooneelsesawthesealiens,theirfatherrefusedtobelievethem.Tinawassurethatsomethinglandedintheforestnearthehillsbecausesheheardaloudnoiselastnight.PracticeWecanputtheadverbialclauseofreason

themainclause.Thepositionoftheadverbialclausesofreasonacomma(,)Grammardiscoveryafter/beforeWhenweputtheadverbialclauseofreasonatthebeginning,weoftenseparateitfromthemainclausewith

.CorrectthemistakesTinaandTomthoughttheywerealiensbecausetheyhadnofeathers.Because,.Astheywerefrightened.Theyflewawayatonce.,theyRewritethesentencePracticeCompare

because,as

and

since语气：because>since>as块头大，语气强。because从句语义重心在分句上。since/as从句语义重心在主句上。because用于回答why提问的问题，可独立成句。because和so不能同时出现在一个句子中。I'mtiredbecause

Ididn'ssleepverywell.Let'sstartourparty,sinceeveryoneishere.含义:because引导直接、充分的原因，常译作“因为”；since,as引导显而易见或间接的原因，常译作“既然、由于、鉴于”。BecauseTomisill,hedoesn'tcometoschool.Sinceyouareill,you'dbetterstayathome.-Whydoesn'tTomgotoschooltoday?-Becauseheisill.BecauseTomisill,sohedoesn'tcometoschool.×语气含义because用法GrammardiscoveryBecauseof

Usebecauseoftogivereasonsbecause+

.becauseof+//.WorkouttheruleMainclauseAdverbialofreasonTheywenttotheforestbecausebecauseofTinawokeupatmidnightbecausebecauseofShedecidedtoexploretheforestbecausebecauseof

anounanounphraseanobjectpronounasentenceGrammardiscoverytheywerecurious.curiosity.sheheardaloudnoise.aloudnoise.shewassuresomethinglandedintheforest.it.WritesentencesbyusingbecauseofTinawassurprisedbecauseof

theyellowlightinthesky.Thealienslandedontheplanetbecauseofanaccident.Thechildrenranawayfromtheforestbecauseof

thealiens.Theirdadwasnotsureaboutthechildren'sstorybecauseofthewritingonthepieceofpaper....because

shesaw

theyellowlightinthesky....because

theyhad

anaccident.PracticeGrammarinuse

语法综合运用Intheyear2045Planet4Gettoknowthesetting(背景)Planet4wasfarawayfromtheEarth.Itwasrichinplants.Planet4isintrouble.Nowit'smytimetosolvetheproblem.GettoknowthecharactersValwasa

spacetraveller.She

because

.ThetreebeingswerestrongcreatureswholivedinPlanet4.Theywereangrybecauseof

.ThevisitorswerenewcomersinPlanet4.TheywenttoPlanet4because

.Ilikesolvingproblemsinspace,soIalwaysgotootherplanets.Weareangrywiththevisitors!WegotoPlanet4togetitsplants.alwayswenttootherplanetsshelikedsolvingproblemsinspacetheywantedtogetitsplantsthevisitorsValvisitorstreebeingGettoknowtheplotWhydidthevisitorscometoPlanet4?

Planet4wasrichinplants.ThevisitorscametoPlanet4becausetheylikedtravellinginspace.Theplantswerespecialbecauseoftheirtaste.Theyturnedtheplantsintomedicinesbecausetheycouldsavelives.FFTwantedtogettheplants.theycouldbeturnedintomedicines.AfterValtalkedtothevisitors,sheknewthevisitorswerefrom

.TheycametoPlanet4becausethey.

sincetheycouldsavelives.Shewonderedhowthesemedicinescouldcurediseases.wantedtogetitsplantstheEarthTheyturnedtheplantsintomedicinesListenanddecideTorF.Whywerethetreebeingsangrywiththevisitors?Val:Excuseme,whyareyoubusyworking?Visitor:Because

.Val:Whyareyou

?Visitor:Because

.Val:Howterrible!Whydidtheyattackyou?Visitor:Wedon'tknow.wehavetorebuildourhousestheyweredestroyedbythetreebeingsrebuildattackdestroyrebuildingyourhousesGetto

knowtheplotGettoknowVal'sexperience

IwenttoPlanet4because...werebusyworkingsince...becauseof...destroyedeverynightthevisitorsturned...into...since...thevisitorscametoPlanet4becauseofCreatetheplotWhathappenednext?

Canthistoolunderstandtheirlanguage?Whatarethetreebeingstalkingabout?Wecan'tunderstand.Howcouldtheycommunicate?Couldanythinghelpthem?Whyweretheplantssoimpotanttothetreebeings?Wasthereanythingspecialaboutthem?Whatwastheending?DidValhelpthem?Whatwouldshedo?Whatwouldthevisitorsandthetreebeingsdo?...@@##$$%%**&&***~~Brainstorm

BecauseValhadausefultool,shetriedtouseittotranslatethetreebeing'slanguage.Shefoundtheplantsweresoimportanttothembecausetheywerethechildrenoftreebeings.Sincethevisitorswereactuallyharmingthetreebeing'schildren,Valaskedthevisitorstostopfarmingtheplants.Asthevisitorsstoppedfarming,thetreebeingsstoppedtheattack.Thevisitorsmovedtootherplanetssincetheyhadtolookfornewmedicines.BecauseofVal'skindnessandskills,shesolvedtheproblemperfectly.I'msorry.It'sOK.Tips:Tense:pasttenseTrytousesentenceswithbecause,since,as

and

becauseof.Belogicalandcreative.CreatetheplotHowdidValsolvetheproblem?

Summary1.AdverbialClausesofReason

amainclause+because/since/as+aclauseBecause/Since/As