八年级英语下册Unit8HaveyoureadTreasureIslandyet语法课件（完整版）2

Unit8

HaveyoureadTreasureIslandyet?现在完成时态

presentperfectGrammarFocusHaveyoureadLittleWomenyet?Yes,Ihave./No,I

haven't.HasTinareadTreasureIslandyet?Yes,shehas.Shethinksit'sfantastic.Haveyoudecidedwhichbooktowriteaboutyet?Yes,Ihave.I'vealreadyfinishedreadingit.Itwasreallygood.现在完成时：表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态。结构：主语+have/has+动词的过去分词1.现在完成时动词构成have/has+v过去分词否定haven’thasn’t疑问Haveyou…?Hashe…?常与下列时间状语连用：just,already,yet,ever,never,before现在完成时1.过去发生的动作对现在造成的影响或结果。和already，never，ever，just，before，yet等状语连用。2.过去已经开始，持续到现在的动作或状态，常与for或since引起的一段时间状语连用。havebreakfastIhavejusthadmybreakfast.(现在我不饿)I’mnothungrynowmovedherein2004IstilllivehereIhavelivedhereforthreeyears.Ihavelivedheresince2004.nowpast

现在完成时：表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态，强调的是现在的情况，不能和表示过去的时间状语连用（如：in1990，lastSunday等）。

一般过去时：一般过去时只表示过去的动作或状态，和现在不发生关系（即动作或状态在现在已经结束），它可以和表示过去的时间状语连用。现在完成时与一般过去时的区别：have/has+V过去分词1.A:Wouldyoulikesomethingtodrink?B:No,thanks._______________________(just/drinksometea)2.A:Iheardyoulostyourkey.__________________?(find)B:No,notyet.3.A:DoyouknowwhenTomisleaving?B:___________________.(already/leave)I’vejustdrunksometeaHaveyoufounditHehasalreadyleftA:When_________________?(leave)B:Thismorning.4.A:Isyoursistergoingtothemovieswithustonight?B:No._________________________.(already/seethefilm)5.A:Whatdoyourparentsthinkaboutourplan?B:I ____________________.(not/tellthem/yet)didheleaveShehasalreadyseenthefilmhavenottoldthemyetSally _______(love)reading.Inthemorning,shereadsthenewspaperandintheeveningshereadsbooks.She_____already ______(read)morethan100differentbooks!Herfavoritekindofbooksissciencefiction.Sheisinterestedinscienceandtechnologyandlovestoimagine4b.Fillintheblankswiththecorrectformsofthewordsinbrackets.loveshasreadwhattheworld _______(be)likein50years.She__________(finish)readingabookaboutrobotslastweekand_____________ (write)abookreportaboutitnextweekforherFrenchclass.Everytimesheisinthelibrary,Sallylooksatthemanybooksshe_____________(notread)yetandshecan’twaittoreadthem!willbefinishedwillwritehasnotread4c.Completethechartwithinformationaboutyouandafriend.A:Whatbookshaveyoualreadyread?B:I’vealreadyreadTomSawyerandHarryPotter.A:Whatdoyouthinkofthem?B:Well,IthinkHarryPotterwasexciting,butTomSawyerwasabitboring.YouYourfriendCommentsBooksIhavealreadyreadMoviesIhavealreadyseenSongsIhavealreadyheardPairWork或者说：ItistwoyearssincehecametoBeijing.Itisthreeweekssinceheboughtthatbook.ItisoneandahalfyearssincehejoinedtheArmy.Itisninemonthssincehisgrandmadied.

(1).for+表示一段时间的短语(2).since+表示过去时间点的词语(3).since+表示过去时间的时间状语从句eg.Ihavebeenateacher______ayear.Hehasbeenatthisschool_______1992.Wehavelearned1,000Englishwords_______wecametothisschool.forsincesince现在完成时句中常见的时间状语A.表示从过去一直持续到现在,不能是具体的过去时间。everjustalreadyyete.g.Haveyou_____beentoJapan?Ihave_