Unit 10 I've had this bike for three years. Section A GrammarFocus-4C初中英语教学

GrammarUnit10I'vehadthisbikeforthreeyears.ReviewAmyhashadherfavoritebookforthreeyears.Jeffhashadhisbike

for3years.Amyhashadthetoybearsinceshewasababy.Amy’smomhashadtheoldbreadmakerformorethan10years.I'vehadthismagazineforacoupleofmonths.I'vehadthesesofttoysandboardgamessinceIwasachild.Hehasownedatrainandrailwaysetsincehisfourthbirthday.1)for+一段时间2)since+过去时间点3)Since+...ago4)since+过去时态句子常用于现在完成时态（动词使用延续性动词）提问用Howlong

用since和for填空。1.Nobodylivesin

thoserooms.Theyhavebeenempty____manyyears.2.HerunclehaslivedinAustralia______30days.3.Lindaisinheroffice.Shehasbeenthere______10o'clock.4.Thesubwayislate.They'vewaited______20minutes.5.Indiahasbeenanindependentcountry______1974.Howlonghaveyouhadthatbikeoverthere?I'vehaditforthreeyears.Howlonghashissonownedthetrainandrailwayset? He’sowneditsincehisfourthbirthday.Haveyoueverplayedfootball?Yes,IdidwhenIwaslittle,butIhaven'tplayedforawhilenow.GrammarFocus现在完成时的用法现在完成时还可表示过去某一时间开始并一直持续到现在(包括“现在”在内)的动作或状态，该用法中的动词多是延续性动词，常见的时态标志词有since,for等。现在完成时1.sinceprep.&conj.自从……以来介词时,后接表示过去的时间点,表示某事开始的时间；连词时,引导时间状语从句,从句常用一般过去时。如：

WehavebeenheresincelastSunday/twoyearsago.Mr.Joneshasworkedheresincehewastwenty-five.2.forprep.后接一段时间，表示一个动作或一种状态已经持续了多长时间。如：

Ihavestudiedhereforthreeyears.Shehasbeenawayforfivedays.常见非延续性动词和延续性动词的转变非延续性性动词转延续性动词的规律1.用意义相同或相近的延续性动词替代。borrow→keep,buy→have,

become→be,puton→wear,2、用“be+形容词”替代。如：die→bedead,open→beopen，getmarried→bemarriedclose→beclosed,

fallill→beill,fallasleep→beasleep,becomeinterestedin→beinterestedin3、用“be+介词或副词”替代。如：begin/start→beon,end/finish→beover,leave→beaway,

come→bein/here,go→beout,getup→beupreach/arrive/getto→stay/bein1.JimisinJapan.Hearrivedtherethreedaysago.__________________________________2.Theyareveryhungry.Theirlastmealwastenhoursago._________________________________________________3.Ihaveacamera.Iboughtitin2009._______________________________4.IknowAnna.Ifirstmetherthreeyearsago.___________________________________5.Lindaisill.ShebecameillonMonday.____________________________________4aRewritethesentencesusingfororsince.JimhasbeeninJapanforthreedays.Theyareveryhungrybecausetheyhaven’thadtheirmealfortenhours.Ihavehadacamerasince2009.IhaveknownAnnaforthreeyears.LindahasbeenillsinceMonday.1.I______________(neverbe)tothewaterparkbefore.Iwantto____(go)nextmonthbeforetheweathergetstoocold.2.They_________________(neverown)anypets,butthey_________(alwayswant)tohaveadog.3.We__________(have)apianosincelastNovember.We_____(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.4.CathyandAmy___________(notbe)backtotheirhometownfortwoyears.They______(miss)theirhometownalotandhopetovisittheplacenextyear.5.Thismuseum__________(be)hereforover20years.It_____(be)oneoftheoldestbuildingsinthissmalltown.4bFillintheblankswiththecorrectformsoftheverbsinbrackets.haveneverbeengohaveneverownedalwayswanthavehadboughthaven’tbeenmisshasbeenisFillinthequestionsandasktwostudents.Thencompletethechart.1.Doyouhavea(n)_______?Howlonghaveyouhadit?2.Doyouowna(n)_______?Howlonghaveyouownedit?ThingsHowlongTonyfavoritebookfortwoyearsbasketballsincehewas10yearsoldStudent1Student21.Completethesentencesusingforor

since.1.Ihaven’tbeentoamuseum__________________________.2.Ihaven’twrittenaletter____________________________.3.Ihaven’triddenabike______________________________.4.Ihaven’tseenamovie______________________________.5.Ihaven’tplayedcomputergames______________________.Selfcheckfortwoyears/sincetwoyearsagosincelastyearforfiveyearsforalongtimeforoneyearsinceIwasinjuniorhighschool.A:HeyEric,_____youenjoyedyourtimeinBeijingsofar?B:Yes,it____beengreat!Everyoneissofriendly.A:Howlong_____youbeeninChinanow?B:Oh,I__________here___abouttwoyearsnow.A:Wow,thatmeansyouhaven’t______backtotheUSfortwoyears?B:No,I____beenbacktwice_____movingtoChina._____youbeentotheUSbefore,LiJuan?A:Yes,IwentthereoncewhenI_____10yearsold,butI_____notbeenback_____then.havehashavehavebeenfor2.Completetheconversation.beenhaveafterHavewashavesince1.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.Ihave____thisnicewatchfortwoyears.A.hadB.boughtC.borrowedD.lend2.He____his