人教版八年级英语下册《nit10Ix27vehadthisbikeforthreeyearsSectionA4a-4c》教案6

1、Unit10SectionA(Grammarfocus4c)学习目标：知识目标掌握此刻达成时的用法能力目标正确划分此刻达成时与一般过去时正确运用for和since的用法感情目标正确办理并充分利用自己的废旧物件。学习过程Step1Groupwork出示下边的典型例句，让学生们先自己察看句子构造，对照此刻达成时和一般过去时的不一样。Howlonghaveyouhadthatbikeoverthere?Ivehaditforthreeyears.Howlonghashissonownedthetrainandrailwayset?Hesowneditsincehisfourthbirthday.Ha

2、veyoueverplayedfootball?Yes,IdidwhenIwaslittle,butIhaventplayedforawhilenow.Step2精讲点拨此刻达成时此刻达成时的连续型用法此刻达成时还可表示过去某一时间开始并向来连续到此刻(包含“此刻”在内)的动作或状态，该用法中的动词多是连续性动词，常有的时态标记词有since,for等。since意为“自从以来”,它既可作介词，也可作连词。作介词时,后接表示过去的时间点,表示某事开始的时间；作连词时,指引时间状语从句,从句常用一般过去时。如：WehavebeenheresincelastSunday/twoyearsago.M

3、r.Joneshasworkedheresincehewastwenty-five.for作介词，后接一段时间，表示一个动作或一种状态已经连续了多长时间。如：Ihavestudiedhereforthreeyears.Shehasbeenawayforfivedays.注意：对since和for指引的时间状语发问时,常用howlong。如：Janehaslearnedtoplaythepianosincetwoyearsago.(对划线部分发问)HowlonghasJanelearnedtoplaythepiano?在此刻达成时中，含有for和since的句子能够互相变换。如：Theyhave

4、livedhereforfiveyears.=Theyhavelivedheresincefiveyearsago.在此刻达成时中，表示短暂意义的动词(如come和see)在一定句和一般疑问句中不可以和表示一段时间的时间状语连用，但在否认句中是能够的。如：MikehascometoLondonforthreeweeks.()Theyhaventseeneachotherforages).(短暂性(短语)动词与连续性(短语)动词和与表示状态的短语之间的转变有些短暂性(短语)动词可转变为相应的连续性(短语)动词。常有的有：becomebeborrowkeepbuyhave/owncatchacol

5、dhaveacoldcomestayputonweargotosleepsleepmovetolivein有些短暂性(短语)动词可转变为表示状态的短语。常有的有：leavebeawaybegin/startbeondiebedeadfinishbeoverjoinbein/beamemberoffallasleepbeasleepmarrybemarriedcome/arriveherebehereStep3Workon4aRewritethesentencesusingfororsinceJimisinJapan.Hearrivedtherethreeyearsago.Jimhasbeeni

6、nJapanforthreeyears.Ihaveacamera.Iboughtitin2009.4.IknowAnn.Ifirstmetherthreeyearsago.Lindaisill.ShebecameillonMonday.LindahasbeenillsinceMonday.I_(neverbe)tothewaterparkbefore.Iwantto_(go)nextmonthbeforetheweathergetstoocold.They_(neverown)anypets,butthey_(alwayswant)tohaveadog.We_(have)apianosince

7、lastNovember.We_(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.CathyandAmy_(notbe)backtotheirhometownfortwoyears.They_(miss)theirhometownalotandhopetovisittheplacenextyear.Thismuseum_(be)hereforover20years.It_(be)oneoftheoldestbuildingsinthissmalltown.Step5Groupwork4cFillinthequestionsandasktwostudents.Thencompletethechart.Doyouhavea(n)_?Howlonghaveyouhadit?Doyouowna(n)_?Howlonghaveyouownedit?ThingsHowlongTonyfavoriteboo