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时间:2019-06-23
《英语人教版八年级下册Unit 8 sectionA Grammar focus》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、八年级英语下册Unit8HaveyoureadTreasureIslandyet?SectionA3(GrammarFocus4a-4c)教学目标:①知识目标:A.复习现在完成时的句型及标志词。B.核心句型预览:1.—HaveyoureadLittleWomenyet?—Yes,Ihave./No,Ihaven’t.2.—HasTinareadTreasureIslandyet?—Yes,shehas.Shethinksit’sfantastic.3.—Haveyoudecidedwhichbooktowriteabouty
2、et?—Yes,Ihave.I’vealreadyfinishedreadingit.Itwasreallygood.②能力目标:能把现在完成时运用到具体问题中。教学重难点:重点:1.熟练掌握already,yet在现在完成时中的用法。2.掌握常用动词的过去分词形式。难点:能具体分析。教学过程:Step1WarmupReadthefollowingsentenceswehaveseen.HaveyoureadLittleWomenyet?Yes,Ihave./No,Ihaven't.HasTinareadTreasureIs
3、landyet?Yes,shehas.Shethinksit’sfantastic.Haveyoudecidedwhichbooktowriteaboutyet?Yes,Ihave.I’vealreadyfinishedreadingit.Itwasreallygood.Step2现在完成时构成:助动词have/has+动词的过去分词,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。规则变化:1.一般加ed。如:pick→picked→picked;wish→wished→wished;stay→sta
4、yed→stayed2.以不发音的e结尾的动词后面加d。如:like→liked→liked;phone→phoned→phoned3.以“辅音字母+y”结尾的动词,变y为i,再加-ed。如:study→studied→studied;4.以辅元辅结尾的,双写再加-ed。如:stop→stopped→stopped;clap→clapped→clapped不规则变化:5.以不变应万变。如:let→let→let;put→put→put;read→read→read6.若中间有双写e,则去掉一个e,单词末尾再加t。如:feel
5、→felt→felt;keep→kept→kept;sleep→slept→slept7.结尾的字母d变t。如:lend→lent→lent;build→built→built;send→sent→sent8.变为以-ought或-aught结尾。如:buy→bought→bought;bring→brought→brought;catch→caught→caught;teach→taught→taught句式:1.肯定句:主语+have/has+过去分词(+其他)2.否定句:主语+have/has+not+过去分词(+其他
6、)3.一般疑问句:have/has+主语+过去分词(+其他)用法:1.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。)时间状语:already,yet,just,ever,never,before2.表示动作或状态从过去某一时刻开始,一直延续到现在,而且可能还要继续下去。e.g.Ihaven’tseenherthesedays.I’veknownBobforthreeyears.I’vebeen
7、atthisschoolforovertwoyears.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。◆yet一般用于疑问句和否定句中。活学活用:drink____________see________find___________leave________tell________—WhyisMr.Yangstillintheteachers’office?—Maybehe________hisworkyet.A.doesn’tfinishB.hasn’tfinish
8、edC.haven’tfinishedStep3Exercises1.Finish4aandchecktheanswers.Keys:Ihavejustdrunksometea.Haveyoufoundit?Hehasalreadyleft.didheleaveShehasalreadys
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