八年级下册unit9 grammar focus-4c

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1、TeachingplanTime:2017.5.9Class:Class2Grade8Teacher:JiangYongContent:Unit9haveyoueverreadTreasureIslandyet?(GrammarFocus-4c)Teachinggoals.Knowledgeandabilityobjects:TohelpstudentsstudyPresentPerfectTenseandgivestudentstheopportunitytopracticeusingthepresentperfecttenseprocedureandmetho

2、ds:ExplainingandExercisingTheimportantanddifficultpoints:PresentPerfectTenseTeachingaids:MultimediaTeachingsteps:Teacher’sactivitiesStudents’activitiesStep1WarmupReadthefollowingsentenceswehaveseen.HaveyoureadLittleWomenyet?Yes,Ihave./No,Ihaven't.HasTinareadTreasureIslandyet?Yes,sheha

3、s.Shethinksit’sfantastic.Haveyoudecidedwhichbooktowriteaboutyet?Yes,Ihave.I’vealreadyfinishedreadingit.Itwasreallygood.Step2现在完成时用法1.Greetwiththeteacher;Readthesentences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。e.g.–Haveyouhadyourlunchyet?–Yes,Ihave.I’vejusthadit.(现在我不饿了。)2.表示动作或状态从过去某一时刻开始，一直延续到现在

4、，而且可能还要继续下去。e.g.Ihaven’tseenherthesedays.I’veknownBobforthreeyears.I’vebeenatthisschoolforovertwoyears.时间状语already,yet,just,ever,never,before构成现在完成时是由“助动词have/has+动词的过去分词”构成的，规则动词的过去分词构成与过去式相同，不规则动词的过去分词则需逐个记忆。动词的过去式的变化和过去分词的变化并不完全相同。我们对它们作了一个大致的分类。(注：例子中单词的变化顺序为：动词原形→动词的过去式 →动词的过去分词)

5、一、过去式和过去分词的变化相同规则变化：1.一般在动词词尾直接加ed。2.2.以不发音的e结尾的动词后面加d。3.以“辅音字母+y”结尾的动词，变y为i，再加-ed。4.词尾只有一个辅音字母的重读闭音节动词，要双写辅音字母，再加-ed。不规则变化：5.以不变应万变。6.若中间有双写e，则去掉一个e，单词末尾再加t。7.结尾的字母d变t。StudythePresentPerfectTense8.变为以-ought或-aught结尾。already和yet都可以作为现在完成时的标志词，但它们的用法不同。◆already一般用于肯定句中。如：Wehavealreadyc

6、leanedupourclassroom.注意：already用于疑问句中时通常表示惊奇。如：Haveyoufinishedyourhomeworkalready?Ican’tbelieveit.◆yet一般用于疑问句和否定句中。如：Haveyouseenheryet?Thebushasn’tcomeyet.活学活用Step3Exercises1.Finish4aandchecktheanswers.2.Finish4bandchecktheanswers.3.Finish4candchecktheanswers.Step4中考链接1.—Doyouknowthem

7、ovieLostinThailand?—Yes.I______ittwice.It’sfunny.A.sawB.seeC.haveseenD.willsee2.—Lunch?—No,thanks.I__________.A.willeatB.ameatingC.haveeatenKeys:CCStep5HomeworkRetellwhatyoudidyesterdayandwhatyouhavedonenow.SummarizeexerciseThingingafterclass: