Unit10SectionAGrammarFocus4c课件人教版八年级英语下册

Tolearnthepresentperfecttensewithforandsince.Tobeabletousethepresentperfecttensewithforandsinceproperly.Reviewhave,for5yearsown,foralongtimeIhavehadthetoybearfor5years.Ihaveownedthescarfforalongtime.have,sinceIwasachildown,sincehisfourthbirthdayIhavehadthebreadmakersinceIwasachild.Hehasownedthesesofttoyssincehisfourthbirthday.have,foracoupleofmonthsIhavehadtheboardgamesforacoupleofmonths.Grammar

Ihavehadthismagazineforacoupleofmonths.IhavehadthemsinceIwasachild.某些动词的现在完成时可表示过去某一时间开始并一直持续到现在的动作或状态。可和表示延续性的时间状语连用。比如______________________/___________________foracoupleofmonthssinceIwasachildGrammar:for&sinceIhavehadthismagazineforacoupleofmonths.Mymom'shaditforalongtime.Hehashadthebookfor3years.I'vehadthemsinceIwasachild.Shehashadthetoybearsinceher11thbirthday.Theyhavehadthescarvessince3yearsago.for+一段时间since+过去时的从句since+过去时间点since+一段时间+ago完成句子。1.那边那辆自行车你买了多久了？

__________haveyouhadthatbikeoverthere?2.我已经买了三年了。

I’vehadit______________.Howlongforthreeyears3.他的儿子拥有火车和轨道多久了？_________________________thetrainandrailwayset?Howlonghashissonowned4.他从四岁生日时就有了。

He’sownedit_________________________.5.——你踢过足球吗？

——踢过，小时候踢过。但是现在已经有好一阵没踢过了。—______________everplayedfootball?

—Yes,IdidwhenIwaslittle,butI___________________forawhilenow.Haveyouhaven’tplayedsincehisfourthbirthdayIhaven’treadityet.Sandy,haveyoufinishedthereaderyet?3.HaveyoureadLittleWomenyet?4.I’ve

alreadyreadit.5.I’ve

just

finished

OliverTwistand…6.

Haveyouheardofthemyet?【例句】现在完成时的构成：肯定句:主语+have/has+过去分词+其他否定句:主语+haven’t/hasn’t+过去分词+其他一般

Have/Has+主语+过去分词+疑问句：…？肯定答语:Yes,主格代词+have/has.否定答语:No,主格代词+haven’t/hasn’t.什么是现在完成时？Ihavealreadyseenthefilm.Hehas

livedinFuyangfortenyears.Ihavejustfinished

lunch.Themanhasworkedsince25yearsago.１.表示过去发生或已经完成的某一动作对现在造成的影响或结果。２.表示动作或状态从过去已经开始，持续到现在并有可能延续到将来.Whatisit?⑴与already，just，ever，never，before，yet等时间副词连用。⑵与recently，sofar，inthepast/last+一段时间等时间状语连用。⑶for+时间段或since+过去时间点连用（含从句，从句过去时）。⑷与once，twice，threetimes，severaltimes（几次）等表示重复次数的词语连用。Whentouseit?中考考点一：have/has+beento(曾经去过某地，人已回来)

have/has+goneto(去了某地，人在路上或在目的地,还没回来)

中考考点二：短暂性动词不能跟表示一段时间的状语连用,必须转变成延续性动词如:leave--be

awayborrow—keepbegin/start—beon

buy—have等中考考点三：现在完成时与一般过去时所表示的动作都发生在过去，但二者有区别：一般过去时侧重于陈述一件过去的事情，与现在没有关系，有明显的过去时间状语；而现在完成时强调过去的动作对现在的影响.--Haveyoureadthisbookbefore?--Yes,Ihave.--Whendidyoureadit?--Threedaysago.Rewritethesentencesusingfororsince.JimisinJapan.Hearrivedtherethreedaysago.2.Theyareveryhungry.Theirlastmealwastenhoursago.Theyhavenoteatenfortenhours.JimhasbeeninJapanforthreedays.Althoughtheirlastmealwastenhoursago,itisn’tlogicalthattheygothungryimmediatelyaftertheyhadtheirlastmeal.Sotheanswer“Theyhavebeenveryhungryfortenhours.”isnotaccepted.3.Ihaveacamera.Iboughtitin2009.4.IknowAnna.Ifirstmetherthreeyearsago.5.Lindaisill.ShebecameillonMonday.Ihavehadacamerasince2009.IhaveknownAnnforthreeyears/sincethreeyearsago.LindahasbeenillsinceMonday.Fillintheblankswiththecorrectformsoftheverbsinbrackets.I_______________(neverbe)tothewaterparkbefore.Iwantto_______(go)nextmonthbeforetheweathergetstoocold.2.They_________________(neverown)anypets,butthey____________________(alwayswant)tohaveadog.haveneverbeengohaveneverownedhavealwayswanted3.We_________(have)apianosincelastNovember.We__________(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.4.CathyandAmy____________(notbe)

backtotheirhometownfortwoyears.They__________(miss)theirhometownalotandhopetovisittheplacenextyear.havehadboughthaven’tbeenmiss5.Thismuseum___________(be)hereforover20years.It_____(be)oneoftheoldestbuildingsinthissmalltown.

hasbeenis1.Doyouhavea(n)_______?Howlonghaveyouhadit?2.Doyouowna(n)_______?Howlonghaveyouownedit?ThingsHowlongTonyfavoritebookfortwoyearsbasketballsincehewas10yearsoldStudent1Student21.现在完成时中询问时间长短可用疑问词howlong。2.介词for后接一段时间，指某个动作或情况到现在为止已持续了多久。3.since有两种用法，分别是：①作为介词，接一个时间名词；②作为连词，引导一个时间状语从句。since指某个动作或情况从过去某一点时间一直持续到现在。1.—I______mycard.Iwanttoreportit.—Youcancallthebanktoreporttheloss.Itwouldbefaster.A.loseB.waslosingC.willlose D.havelost单项选择D2.—Over100countriesandorganizations______warmsupporttotheBeltandRoadinitiative(倡议)since2013.—Wonderful!Ourcircleoffriendsisgrowingbigger!(襄阳)A.give B.havegivenC.gave D.willgiveBD4.IhavebeeninChina______1997.(雅安)A.since B.for C.inD.untilADⅠ.根据上句完成下句，使两句意思相同或相近，每空一词。1.MybrotherhaslivedinShanghaifortwoyears.Mybrother______________inShanghai_______twoyearsago.2.Mr.LinandMrs.Wanghaveworkedintheschoolsincetenyearsago.Mr.LinandMrs.Wang____________