八年级英语下册 Unit 1 Past and Present导学案3（新版）牛津版.doc

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1、Unit1【课前自主学习】重点词组和句型翻译1.我看过这本书许多次了。___________________________________2.我们好几年没看到彼此了。________________________________________3.我父母还没有回来。________________________________________4.你最近看过电影吗？________________________________________5.在过去的一个世纪里________________________________________6.更多了解_______________

2、_________________________【课堂知识点拨】语法讲解现在完成时(thepresentperfecttense)一.现在完成时的定义1.Weusethepresentperfecttensetotalkaboutanactionthatstartedinthepastandcontinuestothepresent.(从过去开始一直持续到现在的动作).1)IhavelivedheresinceIwasborn.2)HehaslivedheresincehecametoNanjing.2.Weusethepresentperfecttensetotalkaboutanac

3、tionthathappenedinthepastandhasaconnectionwiththepresent.(发生在过去并和现在有联系的动作)1)EddiehasjusteatenHobo’sfood.(Eddieatethefood,andnowHobohasnothingtoeat.)2)Ihavelostmymobilephone.(Ilostmymobilephone,andnowIhavenomobilephonetouse.)3.Wealsousethepresentperfecttensetotalkabouthowmanytimesanactionhashappene

4、dtillnow.(到现在为止动作发生了多少次)Ihavealreadyreadthisbookmanytimes.二.现在完成时的结构1.现在完成时的肯定句主语+______________________+……e.g.Ihavefinishedmyhomework.Hehaswrittensixpoems.Theyhaveseenthatfilm.2.现在完成时的否定句主语+_______________________+……e.g.Ihavenotseenthemovieyet.Hehasn’tcomehereyet.hasn’t=_____________haven’t=_____

5、________3.现在完成时的一般疑问句__________________+主语+___________+……?Yes,主语+have/has.No,主语+have/hasnot.e.g.1)Ihavefinishedthework.(改成一般疑问并回答)______you_______thework?Yes,I______./No,I_______.2)Shehasarrivedhere.(改成一般疑问并回答)_______she________here?Yes,she_______./No,she_______.4.现在完成时的特殊疑问句特殊疑问词+have/has+主语+V.pp

6、+……？e.g.IhavelivedheresinceIcamehere.（划线提问）_____________________you______here?三.规则动词的过去分词的构成1.大多数的动词的过去分词是规则的，只需在动词后加-ed；work→_________listen_________jump→___________visit→________2.在以-e结尾的动词后只加-d；close→________like→________agree→_________move→__________3.在以辅音字母加y结尾的动词，应将y改为i再加ed；study→________car

7、ry→_________try→_______worry→_________4.以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed；stop→________drop→____________四．不规则动词的过去分词的构成1.有些动词的原形和过去分词相同；put→puthurt→hurtbecome→becomerun→run2.改变单词中间元音字母；sit→satwin→wonhold→held3.把单词结尾的字母