【精品】高中英语（人教大纲）第二册上：Unit9 Saving the earth(第五课时)VIP免费

TheFifthPeriodInversionTeachingAim:Learnandmastertheuseofinversion.TeachingImportantPoint:Helptilestudentstomakeasummaryofallkindsofinversion.TeachingDifficultPoint:Helpthestudentsknowinwhichcasesfullinversionisusedandinwhichcasespartialinversionisused.TeachingMethods:Revision;summary;explanationandinductivemethods.TeachingAids:aprojectorandtheblackboardTeachingProcedures:StepGreetingsGreetthewholeclassasusual.StepIIRevisionandLead-inT:InUnit9,we'velearntsomesentencesininvertedword-order.Now,I'llshowyousomesentencesonthescreen.Pleasetellwhichareinnaturalornormalword-orderandwhichareininvertedword-order.Lookatthescreenandcomparethemcarefully.(Showthefollowingonthescreen.)Outrushedtheboy.Theboyrushedout.Onlyinthiswaycanweloseweight.Wecanloseweightonlyinthisway.T:Whocantelluswhichareinnormalword-order?S:Iknow.Thesecondsentenceineachpairisinnormalword-order.T:Howdoyouknow?S:Ifthepredicatecomesafterthesubject,itisinnormalword-order.T:Verygood.Sothefirstsentenceineachpairisininvertedword-order.Inthefirstpair,thewholepredicateofthefirstsentencecomesbeforethesubject,inthesecondpair,partofthepredicateofthefirstsentencecomesbeforethesubject.Now,pleaselookatthescreen.(Showthefollowingonthescreenandmakebriefexplanationifnecessary.)Word-ordernaturalword-order:S+Vinvertedword-orderV+SAuxiliary/Modal+S+VStepHISummaryandExplanationT:Ifthepredicateverbisplacedbeforethesubject,thesentenceissaidto用心爱心专心11.2beininvertedword-order.Suchaword-orderiscalledinversion.Weuseinversionfortworeasons.Onefortheneedofthegrammaticalstructureofagiventypeofsentence,theotherforemphasisofacertainpartofasentence.Inversionhappensinquestions,andinanumberofothercases.Therearetwomainkindsofinversion.Insomecasesthewholeverbcomesbeforethesubject.Thiskindofinversioniscalledfullinversion.Andinmostcases,anauxiliaryverboramodalverbcomesbeforethesubjectandtherestofthepredicateverbcomesafter.Ifthere'snoauxiliaryormodalverb,“do”“does”or“did”shouldbeadded.Thiskindofinversioniscalledpartialinversion.Now,let’smakeasummaryoftheinvertedcases.Pleaselookatthescreen.Inthesecases,thewholepredicatecomesbeforethesubject.(Showthefollowingonthescreen.)1.Intheconstructiontherebeforexistencee.g.Therearesomebooksonthetable.There'saboyintheclassroom.Note:Someotherverbscanbeusedwith“there”besides“tobe”,suchas:live,exist,remain,come,arise,appear,enter,followandsoon.e.g.Therecameshoutsforhelpfromtheriver.'.Thereremainsnothingtobedone.2.Whenthesentencebeginswithoneoftheadverbs,suchashere,there,now,then,out,away,up,down,off,back,over.e.g,Theregoesthebell!Inrushedthechildren.Note:Whenthesubjectisapersonalpronoun,inversioncan'tbeused.e.g.Therehecomes.Outheran.3.Whenthesentencebeginswith“such”forreferringback,whichmeanspersonorthingofaspecialkind.e.g.SuchwasAlbertEinstein.Sucharethefacts.Note:Thepredicatemustagreewiththesubjectafteritinpersonandnumber.4.Whenthesentencebeginswithalongadverbialexpressionofplace,especiallyaprepositionalphrasedenotingplace.e.g.Betweenthetwobuildingsstandsatalltree.Southofthecityliesasteelfactory.Note:Someintransitiveverbslike“come”“lie”“stand”“walk”oftenfollow用心爱心专心2aftertheadverbialexpressionsofplace.5.Thewholeorpartofthedirectspeechisplacedatthebeginning,followedbyverbsofreportinglike“answeredJohn”“saidtheoldlady”,whichtellyouwhospokeorhowtheyspoke.e.g.“Help!”shoutedtheboy.“...