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1、八年级现在完成时复习学案(一) 教学目标1、 知识与技能1) 掌握现在完成时的概念、构成。2) 掌握现在完成时的用法。3) 能区分一般过去时态与现在完成时的用法。2、情感态度与价值观:通过在教学过程中让学生多动手、多观察、勤思考、善总结,引导学生养成自主学习的学习习惯。(二) 教材分析教材上对于基本的句型,构成说明详细,对现在完成时的用法有一定的讲解,但不够详彻。而且时态用法之间没有区分的说明。(三) 学习者特征分析高一学生,对现在完成时的句型,构成及用法比较模糊,而且分析能力较弱,做题思路不够清晰。但是该生知识接受能力强,有一定的知识归纳能力。(四) 教学重点1、 现在完成时态的句型,构成及
2、用法2、 现在完成时与一般过去时用法的区别3、 过去分词,瞬间动词与延续性动词在现在完成时态中的运用(五) 教学难点1、 瞬间动词与延续性动词在现在完成时态中的运用2、 现在完成时与一般过去时用法的区别三、 教学过程 (1)基础知识1、定义:现在完成时表示到现在为止已经完成或仍在持续的动作、状态;强调对现在的影响或联系2、基本结构助动词have/has+过去分词(done) 3、句型 否定句: 主语+have/has+not+过去分词+其他. 一般疑问句: Have/Has+主语+过去分词+其他. 简略答语: Yes, 主语 + have/has.(肯定) No, 主语 + havent/ha
3、snt.(否定) 4、用法:1) 表示到现在为止已经完成或刚刚完成的动作。 we have planted all the trees. He has just come back. 2) 表示过去发生的动作,强调结果或对现在的影响。 Someone has broken the window. (窗户现在是坏的)I have already lost the key. (我现在没有钥匙)I havent read that book yet . (不了解书的内容)I have just cleaned my hands. (手是干净的)3)表示从过去开始并持续到现在的动作或状态,常与包括现在
4、在内的一段时间的状语连用。She has learned English for 5 years. He has lived in Beijing since 5 years ago.Has he lived in Changzhou for 4 years? He has worked for this company since he graduated from the college.通常和带有for和since等表示一段时间的状语。 He has been in the army for ten years.I have studied English since 1980.4)表示
5、说话前发生过一次或多次的动作,现在成为一种经验,一般译为汉语“过”,表示次数:一次once; 二次: twice, 三次:three times, ever, never等时间状语。 如: I have been to Beijing twice.我去过北京二次、I have been to Shanghai twice.5、现在完成时常与一些词、词组连用 :1)、ever(曾)、never(未曾)、already(已经) 、 yet(仍、还)、just (刚刚)、before(以前)2)、for +一段时间 : for two days 有两天了3、. in the past/last一段时
6、间 : in the past ten years 在刚过去的十年里4)、. since + 过去某一个时间: since 1991 : 自从1991年到现在 一段时间 + ago since 14 years ago: 自从14年前到现在 一般过去时句子: since I was born : 自从我出生到现在5) 辨析 have been to/in和 have gone to have been to someplace. 曾经去过某地,已经回来 has gone to someplace.某人去了某地,还没有回来 have been in someplace.在某地一段时间。 (2)理
7、解提高 瞬间动词(buy,die,join,come,go ,leave,join )不能直接与for since 连用,要改为延续性动词。 短暂性动词变为延续性动词leave - be away; borrow - keep buy - have; begin/start - be ondie - be dead; finish - be over join - be in+组织机构; be a member of+组织机构open - be open; fall ill - be ill; get up-be up catch a cold - have a cold; come - be
8、 ; go there - be there become - be; come back - be back fall asleep - be asleep; get to/ arrive/reach - be(in)get to know - knowgo (get) out -be out; put on-wear(三) 练习巩固1、Both his parents look sad . Maybe they _whats happened to him .(呼和浩特) . knew . have known . must know .will know2、He has _ been t
9、o Shanghai , has he ?. already .never .ever . still 3、Have you met Mr Li _?. just . ago .before . a moment ago4、The famous writer _ one new book in the past two years . is writing .was writing .wrote .has written5、Our country _ a lot so far .Yes . I hope it will be even _ . has changed ; well . changed ; good. has changed ; better . changed ; better 6、Zhao Lan _already _in this school for two years . was ; studying . will ; study. has ; studied . are ; studying