1、Unit10SectionA(Grammarfocus4c)學(xué)習(xí)目標(biāo)：知識(shí)目標(biāo)掌握此刻達(dá)成時(shí)的用法能力目標(biāo)正確劃分此刻達(dá)成時(shí)與一般過去時(shí)正確運(yùn)用for和since的用法感情目標(biāo)正確辦理并充分利用自己的廢舊物件。學(xué)習(xí)過程Step1Groupwork出示下邊的典型例句，讓學(xué)生們先自己察看句子構(gòu)造，對(duì)照此刻達(dá)成時(shí)和一般過去時(shí)的不一樣。Howlonghaveyouhadthatbikeoverthere?Ivehaditforthreeyears.Howlonghashissonownedthetrainandrailwayset?Hesowneditsincehisfourthbirthday.Ha

2、veyoueverplayedfootball?Yes,IdidwhenIwaslittle,butIhaventplayedforawhilenow.Step2精講點(diǎn)撥此刻達(dá)成時(shí)此刻達(dá)成時(shí)的連續(xù)型用法此刻達(dá)成時(shí)還可表示過去某一時(shí)間開始并向來連續(xù)到此刻(包含“此刻”在內(nèi))的動(dòng)作或狀態(tài)，該用法中的動(dòng)詞多是連續(xù)性動(dòng)詞，常有的時(shí)態(tài)標(biāo)記詞有since,for等。since意為“自從以來”,它既可作介詞，也可作連詞。作介詞時(shí),后接表示過去的時(shí)間點(diǎn),表示某事開始的時(shí)間；作連詞時(shí),指引時(shí)間狀語從句,從句常用一般過去時(shí)。如：WehavebeenheresincelastSunday/twoyearsago.M

3、r.Joneshasworkedheresincehewastwenty-five.for作介詞，后接一段時(shí)間，表示一個(gè)動(dòng)作或一種狀態(tài)已經(jīng)連續(xù)了多長時(shí)間。如：Ihavestudiedhereforthreeyears.Shehasbeenawayforfivedays.注意：對(duì)since和for指引的時(shí)間狀語發(fā)問時(shí),常用howlong。如：Janehaslearnedtoplaythepianosincetwoyearsago.(對(duì)劃線部分發(fā)問)HowlonghasJanelearnedtoplaythepiano?在此刻達(dá)成時(shí)中，含有for和since的句子能夠互相變換。如：Theyhave

4、livedhereforfiveyears.=Theyhavelivedheresincefiveyearsago.在此刻達(dá)成時(shí)中，表示短暫意義的動(dòng)詞(如come和see)在一定句和一般疑問句中不可以和表示一段時(shí)間的時(shí)間狀語連用，但在否認(rèn)句中是能夠的。如：MikehascometoLondonforthreeweeks.()Theyhaventseeneachotherforages).(短暫性(短語)動(dòng)詞與連續(xù)性(短語)動(dòng)詞和與表示狀態(tài)的短語之間的轉(zhuǎn)變有些短暫性(短語)動(dòng)詞可轉(zhuǎn)變?yōu)橄鄳?yīng)的連續(xù)性(短語)動(dòng)詞。常有的有：becomebeborrowkeepbuyhave/owncatchacol

5、dhaveacoldcomestayputonweargotosleepsleepmovetolivein有些短暫性(短語)動(dòng)詞可轉(zhuǎn)變?yōu)楸硎緺顟B(tài)的短語。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