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时间:2019-06-24
《英语人教版八年级下册unit 8 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、SectionA3(GrammarFocus-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.—Haveyoudecidedwhichbooktowriteaboutyet?—Yes,Ihave.I’vealreadyfinishe
2、dreadingit.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:Step1Warmup Readthefollowingsentenceswehaveseen.HaveyoureadLittleWomenyet?Yes,Ihave./No,Ihaven't.HasTinareadTreasureIslandyet?Yes,she
3、has.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 →
4、stayed → 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;rea
5、d → read → read6. 若中间有双写e,则去掉一个e,单词末尾再加t。如:feel → 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
6、→ caught;teach → taught → taught句式:1. 肯定句:主语 +have/has+ 过去分词 (+ 其它)2. 否定句:主语 +have/has+not+ 过去分词(+ 其它)3. 一般疑问句:have/has+ 主语 + 过去分词(+ 其它)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,eve
7、r,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’vebeenatthisschoolforovertwoyears.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________fin
8、d___________ leave_____________tell________—WhyisMr.Yangstillintheteachers’office? —Maybehe________hisworkyet.A.doesn’tfinish B.hasn’tfinished C.haven’tfinishedStep3Exercises1.Fi
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