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八年级英语下:Unit-11-Working-with-Animals-Part-1重难点讲解北师大版VIP免费

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Unit11WorkingwithAnimals一.教学内容:Unit11part1继续学习现在完成时来描述经历二.教学重点:1.现在完成时中ever,never的使用。2.现在完成时中的两种动词的使用。3.现在完成时与一般现在时,一般过去时的区分。4.重点词组。三.具体内容:(一)Presentperfectwitheverandnever.e.g.Haveyoueverseenapolarbear?Ihaveneverseenapolarbear.Haveyoueverforgottenyourhomework?No,never.I’veseenadolphin,butI’veneverseenawhale.(二)Twotypesofverbsinthepresentperfect.1.Therearetwotypesofverbsinthepresentperfect.Onetypereferstoanactionthatstartsinthepastandcontinuestothepresent.Thetimephraseswithfororsinceareusedwiththistypeofverbs.e.g.Hehashadthebookforthreeweeks.Ihaveworkedherefortwomonths.Hehasbeenateacherfortenyears.TheyhavelivedinCanadasince1997.HehastaughtmesinceIcametothisschool.注意:for+时间段如:fortenyearssince+时间点如:sincenineo’clocksince+时间段+ago:sincetenyearsagosince+一般过去时态从句(主句是现在完成时)e.g.(1)TheyhavelivedinChina_____1998.(2)WehavestudiedEnglish_____5years.(3)Joy___________(learn)Chinesesinceshe_____(come)toChina.用心爱心专心2.Theothertypereferstoanactionthattookplaceataspecifictimeinthepastandcannotcontinue.Usually,fororsincearenotused.e.g.Hehasboughtabook.Thefilmhasbegun.Ihaveborrowedabookfromthelibrary.注意:瞬间动作不能与表示一段时间的短语连用,应改用持续性动词。常见的瞬间动词与持续性动词的转换。come/go–bein/ongoout–beoutleave–beawaybegin/start–beonbuy–haveborrow/lend–keepjoin–beamemberdie–bedeadcatchacold–haveacoldbecome–befallasleep–beasleepopen–beopengettoknow–knowclose-beclosedEx.Fillintheblanks.1.这辆自行车我买了两年了。I’ve_____thebike_____twoyears.2.HeleftNanjingtwoyearsago.He____________________Nanjingfortwoyears.3.Themonkeydiedlastmonth.Themonkey_______________foramonth.4.A:Honglong_____you____?B:Twoweeks.A.did,getillBhave,fallenillC.were,illD.have,beenill(三)现在完成时与一般现在时的区分:一般现在时表示现在较长时间内经常习惯性的动作或状态,不含有影响和结果的意味。而现在完成时强调过去发生的动作对现在的影响和结果。e.g.Heworksatourschool.Hehasworkedinourschoolfortenyears.(四)现在完成时与一般过去时的区分:虽然动作都发生在过去,但它们强调的重点不同:现在完成时侧重于对现在的影响,而一般过去时侧重于某一动作发生在过去某个时间或某段时间,即现在完成时侧重现在的影响,而一般过去时侧重于发生的时间。e.g.Ihaveseenthefilm.用心爱心专心Isawthefilmthreedaysago.Mr.Greenhasboughtanewcomputer.Mr.Greenboughtanewcomputeryesterday.另外,与它们搭配的时间状语也不同。一般过去时常与…ago,justnow,last…,yesterday…连用;而现在完成时与already,yet,just,ever,never,for…,since…连用。e.g.Shehaslivedheresincetwoyearsago.Shelivedheretwoyearsago.Ex.1.—IhaveseenthefilmTitanicalready.—Whenyouit?—Thedaybeforeyesterday.A.have,seenB.will,seeC.did,seeD.did,seen2.Mr.BlackinChinasincefiveyearsago.A.livedB.haslivedC.livesD.isgoingtolive3.WetreeslastSunday.Sofarweover3,000treesthere.A.planted,plantedB.planted,haveplantedC.haveplanted,plantedD.haveplanted,haveplanted(五)重点词组。1.continuetodoTheoldmancontinuedtoworkforhiscompanyafterheretired.Mostthestudentswillcontinuetostudyinthesameschoolnextyear.2.helpsb.(to)dosth.Childrenshouldhelptheirparentstodosomehousework.3.makesb.dosth.Hisbossoftenmakeshimoverwork.4.closetoOurhomeisclosetotheschool.5.feel+adj.Healwaysfeelssleepyintheclass.6.happentoShehappentobeoutwhenIcalledlastnight.[课堂练习]I.用适当的词填空。never/ever/just/yet/already1.I’veseenanelephant,butI’ve_______seenabear.2.Haveyou______riddenahorse?No,________.用心爱心专心3.Haveyou______cleanedtheroom?No,not________.4.I’ve_____comebackfromthebank.I’mverytired.5.Haveyoufinishedyourhomework______?Yes,I’ve_______donethat.II.用动词的适当形式填空1.He(work)intheWildlifeParksinceheleftschool.2.Lookatthepolarbearoverthere!It(swim)inthepool.3.Thekangaroocanjumpveryfar,anditoften(put)itsbabyinthefrontpocket.4.There(be)moreandmoretreesappearingonthehill.5.youever(see)akoala?6.Theorganization’sgoalis(stop)drugs.7.Wouldyoulike(see)crocodilesinthezoo?Therearesomenewcomings.8.Infact,itisthelargestanimalthatever(exist).9.Thiskindofplanecan(land)anywhere:onland,onwaterorevenonaroof.10.Themalelion(do)mostofthehuntingforthefamily.III.连词组句1.how,a,been,vet,you,long,have2.they,lived,since,inChina,1997,have3.he,had,shirt,the,has,for,two,years4.how,he,long,has,of,2004,vet,summer,the,asince,been用心爱心专心

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八年级英语下:Unit-11-Working-with-Animals-Part-1重难点讲解北师大版

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