英语人教版八年级下册unit 8 Section A 1a-1c.docx

Unit 8 Have you read Treasure Island yet? 第一课时 (Section A 1a-1c)学习目标1.学会用现在完成时表达过去发生的但与现在情况有关的事情。2.掌握现在完成时结构和了解其含义重难点1现在完成时:表示过去发生或已经完成的动作对现在造成的影响或结果。2现在完成时的构成：have/has +过去分词自主预习动词过去分词的变化规则。合作探究1.现在完成时：1)含义：表示动作过去发生，但与现在有联系或影响，此时态常与以下时间词连用，如already已经,yet已经，还，just刚刚,ever曾经,so far到目前为止,before从前,times次数,for+时间段，since自从以来,how long多久，never从不，in the past.在过去.2)结构：主语+have/has+动词的过去分词（have/has是助动词，没有“有”的意义）肯定句：She has finished her work.她完成了她的工作。一般疑问句:-Has she finished her work?-Yes,she has./No,she,hasnt.否定句: She hasnt finished her work.3)动词的过去分词的构成：规则动词的过去式就是过去分词，不规则动词的过去分词见不规则动词表。4）现在完成时态与一般过去时的区别：句子中如有yesterday,last,just now,in1999等过去时间词出现就只用一般过去时。5)特别提醒：句子中如有when出现，一定不能用完成时例题：A:Jack has read the book, B:When did he read it? A:Last weekend2.Have you read Little Woman yet?你已读过小妇人吗？Yet（已经，还）的用法：在现在完成时中，already(已经)用于肯定句，yet用于一般疑问句或否定句，例句：肯定句：I have already eaten lunch.我已经吃过午饭了。 一般疑问句：_ you eaten lunch _? 否定句： I _eaten lunch _.3.Whats it like?它（这本书）怎么样？What+be+sth. like?表示“某物怎样？”达标测评一.用单词的正确形式填空。1.I_ ever_(drink)coffee.2.The boy_(water)the flowers already3.She_(watch)the movie twice4.-_you _(visit)the Great Wall before?-Yes,I_.5.How long_your father_(work)in this city?6.He_(get)here yesterday,so he_(stay)here for only one day.二.句型转换。1.He has already gone to New York.(改为一般疑问句并回答) _he_to New York_? _No,he_2.We have learned English for two years(改为否定句) We _ _ English for two years3.We have lived here for two years.(对画线部分提问)_ _have you_here?4.Tom has ever read the book. (改为否定句)Tom has _ read the book.5.Miss Green start to teach us 2 years ago.(改为同义句)Miss Green_ _us for 2 years.三.单选选择。（ ）1.Both his parents look sad. Maybe they _whats happened to him.knew .have known .must know .will know（ ）2.He has _ been to Shanghai, has he?.already .never .ever .still（ ）3.Have you met Mr. Li _？.just .ago .before .a moment ago（ ）4.The famous writer _ one new book in the past two years.is writing .was writing .wrote .has written（ ）5.Zhao Lan _already _in this school for two years. .was; studying .will; study .has; studied .are; studying（ ）6.We _ Xiao Li since she was a little girl. .know .had known .have known .knew（ ）7.These farmers have been to the United States. Really? When _ there? .will they go .did they go .do they go .have they gone（ ）8._ you _ your homework yet? Yes. I _ it a moment ago. .Did;