八年級(jí)英語下冊(cè)-Unit-10-Ive-had-this-bike-for-three-years(第3課時(shí))課件-

Unit10I’vehadthisbikeforthreeyears.GrammarHowlonghaveyouhadthatbikeoverthere?I'vehaditforthreeyears.Howlonghashissonownedthetrainandrailwayset? He’sowneditsincehisfourthbirthday.Haveyoueverplayedfootball?Yes,IdidwhenIwaslittle,butIhaven'tplayedforawhilenow.GrammarFocusfor和since在現(xiàn)在完成時(shí)中的應(yīng)用for與since都能與現(xiàn)在完成時(shí)連用，但區(qū)別較大：（1）for后須接“時(shí)間段”HehasstudiedEnglishforfiveyears.他學(xué)英語5年了。（2）since后須接“時(shí)間點(diǎn)”

HehasstudiedEnglishsince1999.他從1999年開始學(xué)英語。（3）二者可以轉(zhuǎn)換for+一段時(shí)間=since+一段時(shí)間+agoHehasbeenhereforfiveweeks.=Hehasbeenheresincefiveweeksago.他到這兒已經(jīng)有五個(gè)星期了。如：HehastaughtheresincehecametoChina.自從他來到中國就在這兒教書。Wehavebeenfriendssincewemetinschool.我們從在學(xué)校見面起就成為了好朋友。(4)since能引導(dǎo)時(shí)間狀語從句(主句用現(xiàn)在完成時(shí)，從句用一般過去時(shí))，而for則不能。（5）現(xiàn)在完成時(shí)常用句型：①Itis(hasbeen)+時(shí)間段+since+時(shí)間狀語或從句ItisfourdayssincelastFriday.從上周五到現(xiàn)在已經(jīng)四天了。IthasbeentwoyearssinceJimcametoBeijing.吉姆來北京已經(jīng)兩年了。②Thisisthefirst(second…)timethat+從句句型中的that從句通常使用現(xiàn)在完成時(shí)。如：ThisisthefirsttimethatJennyandDannyhavebeentoChina.這是珍妮和丹妮第一次來屮國。ThisisthethirdtimethatIhaveseenKaren.這是我第三次見到Karen。（6）均須與延續(xù)性動(dòng)詞連用，也可以與非延續(xù)性動(dòng)詞的否定式連用。如:Ihaveboughtthiscomputersincefouryearsago.(×)Ihavehadthiscomputersincefouryearsago.(√)Ihaven’tboughtanythingfortwomonths.(√)Ihaven'theardfromhimfor3weeks.(√)非延續(xù)性動(dòng)詞和延續(xù)性動(dòng)詞的轉(zhuǎn)換leave—beawayborrow—keepbuy—havebegin/start—beondie—bedeadfinish---beoveropensth—keepsthopenfallill—beillgetup—beup,comehere—behere,join—beon+組織機(jī)構(gòu)/beamember組織機(jī)構(gòu),gothere—bethere,become—be,comeback—beback,fallasleep—beasleep,

getto/arrive/reach—be(in),leave—beawayfrom,gettoknow—know,go(get)out—tieout，puton—wear,catchacold—haveacold,getmarried—bemarried等。Theoldmandied4yearsago.—Theoldmanhasbeendeadfor4years.Itis4yearssincetheoldmandied.—Fouryearshaspassedsincetheoldmandied.HejoinedtheParty2yearsago.—HehasbeeninthePartyfor2years.Iboughtthebook5daysago.—Ihavehadthebookfor5days.如：（7）二者引出的時(shí)間狀語往往用howlong提問?！狧owlonghaveyouhadthisbook?這本書你買多久了?—Foraweek./Sinceaweekago.買一周了。JimisinJapan.Hearrivedtherethreedaysago.__________________________________2.Theyareveryhungry.Theirlastmealwastenhoursago.________________________________________________________________4aRewritethesentencesusingfororsince.JimhasbeeninJapanforthreedays.Theyareveryhungrybecausetheyhaven’thadtheirmealfortenhours.3.Ihaveacamera.Iboughtitin2009._______________________________4.IknowAnna.Ifirstmetherthreeyearsago.___________________________________5.Lindaisill.ShebecameillonMonday.____________________________________Ihavehadacamerasince2009.IhaveknownAnnaforthreeyears.LindahasbeenillsinceMonday.1.I______________(neverbe)tothewaterparkbefore.Iwantto____(go)nextmonthbeforetheweathergetstoocold.2.They_______________ (neverown)anypets,butthey____________(alwayswant)tohaveadog.3.We__________(have)apianosincelastNovember.We_________(buy)itfromtheLifamilywhentheymovedtotheUSlastyear.4bFillintheblankswiththecorrectformsoftheverbsinbrackets.haveneverbeengohaveneverownedalwayswanthavehadbought4.CathyandAmy_____________(notbe)backtotheirhometownfortwoyears.They______(miss)theirhometownalotandhopetovisittheplacenexty