新外研版八年级英语下册 Module4 Unit 3.ppt

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1、SeeingthedoctorUnit3Languageinuse4ModuleIhaven’tdonemuchexercisesinceIgotmycomputerlastyear.Ihavehadhimforthreemonthsnow.Sincethen,ithasbecomepartofmylife.Languagepracticesince常用来引导时间状语，后常接时间点或过去时的句子，该时间状语通常为完成时态的标志。since引导的时间状语从句时态为：主句完成时，since从句过去时。for后常接时间段，用来说明动作或状态持续的时间，“for+时间段”也通常为完成时态的标志。sin

2、ce和for在现在完成时中的应用1.Ihaven’tdonemuchexercise_____Igotmycomputerlastyear.2.I’vebeenill_____aboutthreedays!3.Wehaveplayedfootball_____ayearnow.4.Scientiststhinkthattherehasbeenlifeontheearth_____hundredsofmillionsofyears.5.—HowlonghaveyoustudiedChinese?—______ayear.6.—Howlonghaveyoulivedhere?—______2004

3、.sinceforSinceforforfor短暂性动词1、又叫非延续性动词。句子一般不可以用表示一段时间的状语。2、如果句子是否定形式，则可以用表示一段时间的状语。延续性动词可以用表示一段时间段状语。现在完成时中的短暂性动词和延续性动词Ihaveseenhimfor5years.Ihaven'tseenhimfor5years.Hehashadthebookfor3weeks.短暂性动词和延续性动词之间的转换方式一：同义转换borrow→keepbuy→havebecome/come→begettoknow→know方式二：转化为“be+adj/adv”die→leave→open/clos

4、e→stop→arrivein(at)/reach/getto→join→start/begin→bedeadbeaway(from)beopen/closedbeoverbein/atbeamemberof/beinbeon1.—Lookatthesestamps.I____themforfiveyears.—Wow,theyarewonderful.A.keptB.havekeptC.havebought2.—Howlong_____you_____thisbook?—Fortwoweeks.A.did;borrowB.have;borrowedC.have;kept3.Studentsi

5、nBeijing_______awaymanybookstotheHopeSchoolssince2009.A.havegivenB.giveC.gave中考链接4.—Jack,Ihaven’tseenyouruncleforalongtime.—He______Shanghaionbusinessfortwomonths.A.wenttoB.hasgonetoC.hasbeeninD.hasbeento5.He_______Luzhouforthreemonths.A.hasleftB.hascometoC.hasgonetoD.hasbeenawayfrom6.I____Mr.Smiths

6、incehemovedtoShanghai.A.didn’thearfromB.don’thearfromC.won’thearfromD.haven’theardfrom7.—Didyouborrowthecomicbookfromthelibrary?—Yes.I___itforthreedays.I’llreturnitthisafternoon.A.borrowedB.keptC.haveborrowedD.havekept8.—Howlonghaveyou____here?—Fortwodays.I_____herethedaybeforeyesterday.A.been；cameB

7、.come;cameC.came;came9.Theastronautissotiredthathe____forelevenhours.A.hasbeenasleepB.hasfallenasleepC.hasgonetobedD.hasgonetosleep10.Benisaforeignteacher.Sofar,he______inSichuanforfiveyears.A.wasteac