英语人教版八年级下册unit10 grammar focus.ppt

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1、Unit10I'vehadthisbikeforthreeyears.SectionAgrammarfocusYardsaleGuessandfastanswering(抢答)1.Whendopeopleusuallyhaveyardsales?A.OnweekdaysB.Onweekends2.Whyarethesalescalled"yardsale"?A.TheysellattheiryardB.SoundsgoodGameGuessandfastanswering(抢答)3.Whatkindofthingsdopeoplesellinayardsal

2、e?A.Somethingtheydon'tneedanymore.B.Somethingtheythinkimportant.4.Whydopeopleliketobuythingsinayardsale?A.Becausethethingsareverycheep.B.Becausethethingstheycan'tbuyinotherplace.GameWearehavingayardsale,let'stalkaboutthethingswewillsell.4aRewritethesentencesusingfororsince.JimisinJ

3、apan.Hearrivedtherethreedaysago.2.Theyareveryhungry.Theirlastmealwastenhoursago.Theyhaven’teatenfortenhours/sincetenhoursago.JimhasbeeninJapanforthreeyears.3.Ihaveacamera.Iboughtitin2009.4.IknowAnna.Ifirstmetherthreeyearsago.5.Lindaisill.ShebecameillonMonday.Ihavehadacamerasince200

4、9.IhaveknownAnnforthreeyears/sincethreeyearsago.LindahasbeenillsinceMonday.4bFillintheblankswiththecorrectformsoftheverbsinbrackets.I_______________(neverbe)tothewaterparkbefore.Iwantto_____(go)nextmonthbeforetheweathergetstoocold.2.They_________________(neverown)anypets,butthey___

5、________(alwayswant)tohaveadog.haveneverbeengohaveneverownedalwayswant3.We_________(have)apianosincelastNovember.We_______(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.4.CathyandAmy____________(notbe)backtotheirhometownfortwoyears.They______(miss)theirhometownalotandhopetovisi

6、ttheplacenextyear.havehadboughthaven’tbeenmissverymuch5.Thismuseum_________(be)hereforover20years.It_____(be)oneoftheoldestbuildingsinthissmalltown.hasbeenis现在完成时表示从过去一直持续到现在的动作或状态，并可能还将持续下去。简称“延续用法”.现在完成时1）常与for,since引导的时间段的时间状语连用.since,for的用法:2）动词使用延续性动词。此用法需注意两点：因为瞬间动词在肯定句、since

7、:(自…以来)1)since+时间点He has stayed heresince 5 o’clock.2)since+时间段+agoHe has stayed heresince 5 hours ago.疑问句中不能和时间段连用.语法精讲3)since+从句(句子要用一般过去时态）She has taught Englishsinceshe came here.for:(长达）for+时间段Hehaskeptthebookfor2weeks.since＋一段时间＋ago＝for＋时间段;sincetwoweeksago=fortwoweeks;Ihavek

8、eptthelibrarybookforaweek.