英语人教版八年级下册Grammar Focus Unit 8-Unit 10.ppt

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1、PresentPerfectTenseGrammarFocusUnit8-Unit10----老河口市薛集中学郑禛Contents12现在完成时态的概念现在完成时态的结构Areyouready?cleanhavestudyeatteachreadWhatdoesMaidousay?Lead-inIhavefinished.Ihavecleaned.Ihaveeatenup.WhatdoesMaidousaytohismother?allmyhomeworkalltheroomsallthefoodPre

2、sentPerfectTense(现在完成时)Ihavecleanedtheroom.Now,theroomisclean.clean-cleaned-cleanedHehaseatenupallthefood.Now,there’snofood.eat-ate-eatenHasheeatenupallthefood?Yes,hehas.Hehaseatenupallthefood.Hashecleanedtheroom?No,hehasn’t.Hehasn’tcleanedtheroom.Whatha

3、shedone?Hehaseatenupallthefood.Whendidtheyhavebreakfasttoday?Theyarenothungrynow,becausethey__________breakfastalready.Theyhadbreakfastat_____thismorning.havehadhave-had-had_______they_____breakfastyet?Yes,__________________________________.______they___

4、___lunch_____?No,________________________________.Havehadtheyhave.TheyhavehadbreakfastalreadyHavehadyettheyhaven’t.Theyhaven’thadlunchyeteight1）表示过去发生或已完成的动作对现在造成的影响或结果；常与already，yet，never，ever，just，before连用。step1.现在完成时的概念since2014.since3yearsago.Ihaveta

5、ughtatthisschool______________.Threeyearsago,Icametothisschooltoteach.sinceIwas28yearsold.pastnow20142017forthreeyearssince2014.since3yearsago.Shehastaughtatthisschool______________sinceshewas28yearsold.pastnow20142017HowlonghasMissZhengtaughtatthisschoo

6、l?forthreeyears.--Howlonghaveyoustudiedatthisschool?--Ihavestudiedatthisschoolfor2years.since2yearsago.since2015.study-studied-studiedWhendidyoubegintostudyatthisschool?Ibegantostudyatthisschool…sinceIwas12yearsold.pastnow20152017twoyearsago/in2015.since

7、和for的区别for长达多久,后接一段时间since自从,后接时间点一段时间+ago含有过去时的从句Hehasrun_____________hasherunforanhour.since7o’clock.sinceanhourago.run-ran-runHowlong__________?用since和for填空1. ______ two years   2._______ two years ago   3. _______ last month   4.______ 2000   5._

8、______ yesterday   6. _______ 4 o’clock   7. ______ 4 hours   8._______ an hour ago   9. _______ we were children   10.______ she left heresincesinceforforsincesincesincesincesincesinceIboughtthisbook5yearsago.瞬间性动词不能