江苏省洪泽外国语中学八年级英语下册 8B Unit 1 past and present Grammar 2教学案 牛津版.doc

8b unit 1 past and present grammar 2【教学目标】知识技能: to learn some new words.to understand the difference between “since” 、“ago”and “for”过程与方法: to learn the use of the present perfect tense情感态度价值观: to understand the use of the present perfect tense【教学重点】the differences: since & for【教学难点】the differences: since & for【课前预习】step one: lead-inreview the present perfect tense.structure: have/has+v(过去分词)past participle: 规则动词的过去分词与过去式相同。add some irregular verbs. teach-taught-taught bring-brought-brought getgotgot know-knewknown growgrewgrownfind-foundfound holdheldheld showshowedshown keep-kept-kept leave-left-left lose-lost-lostrun-ran-run swim-swamswumdrivedrove-driven beginbegan-begun【课堂学习】三、小组合作、师生探究step two: pre-taskrecently we have already known a little about sunshine town. i have never been there before. have you ever been there? s1: no, i havent been there yet.t: mr. chen was born there. he has known it since he was very young. he has known it for a long time. step three: while-tasktask 1: 1) tell the students that we can use adverbs of time with the present perfect tense, such as already, ever, for, just, never, since and yet. 2) some more examples: i have just seen millie on the playground. has millie called yet? no, she hasnt. i have not heard from millie yet. i have done my homework already. i have never read the novel. 3)现在完成时与时间副词(on page16)for +段时间 for two days/three yearssince +点时间 since last night /1992 since two days ago since +句子 since i came here last weekalready 一般用于肯定的陈述句yet 一般用于否定句和疑问句 (否定句中常译为“还”；疑问句中常译为“已经”。)just 刚（注意与just now的区别） recently 近来 ever 曾经(常用于问句) never 从不up to now till now over/in the past 10 years so far before(句尾且不加时间) eg. have you visited our city before?四、归纳总结、巩固提高1.what you have learnt?2. the understanding of the present perfect tense3.the use of the perfect tense: have/ has +p.pfor +段时间 since +点时间 (过去时间) since +句子(一般过去时态的句子)五、当堂检测、及时反馈句型转换。 1. the boy got up 20 minutes ago.（同义句） the boy 20 minutes. the boy 20 minuets .（不可用，超标）2. he joined the club 2 days ago. （同义句） 【板书设计 】【教学反思】命题人审核人审批人学生姓名班级评价批阅日期序号6一、翻译下列短语1.新鲜空气 6.借给我一本书2.火车站 7.在这些年里 3.住在小村庄里 8.投入使用4.搬进新公寓 9.过去常住在旧房子里5.许多野生生物 10.这个地方的许多变化二. 用所给动词的正确时态填空：1.our teacher told us that the sun (rise) in the east.2.this is the most interesting film she ever (see).3.the dog is still wet because it just (come) out of the river.4.in fact, he (live) here since 1990.5.just (stay) here and dont go around, or your parents cant find you.6.by the way, - you (hear) from lucy yet? -no, i havent.三.句型转换：1.my family have been to zhongshan zoo twice. （对划线部分提问） times your family to zhongshan zoo?2.my little sister has already eaten an egg. (改为否定句） my little sister an egg .3.he has been here for two weeks. (改为同义句） he has been here two weeks .4.my father was a doctor in the past.(改为同义句） my father be a doctor.5.we have learned six english songs so far.(改为一般疑问句） you six english songs so far?四.单项选择： ( )1.-have you finished your homework ? -yes,i have finished it. a. yet yet b .already already c. already yet d. yet already ( )2.it me about 20 minutes to walk there. a. spent b. cost c. paid d .took ( )3.the boy is young, but he many countries. a. has been to b .has been for c. has come to d. has gone to ( )4.he doesnt feel though he lives alone. a. alone b. lonely c. lonely d. only ( )5.when and where you ? a. did bear b. did bore c. did born d. were born ( )6.there great changes in my hometown in the past ten years. a. has been b .have been c. was d. werego. 五.完成句子：1.她在这所学校教英语多久了？ she english in this school?2.我们是老朋友了，我们相识已经十年了。 we are now. we each other ten years.3.汤姆去年结婚的。 tom last year.4.有人打扫了教室。看，多干净啊！ someone the classroom. look! clean it is!5.你最近收到他的来信了吗？ you any letters from him ?6.嘲笑别人是不礼貌的。 its laugh others. 六.任务型阅读： when i take a walk around washington square park, i often see many people walking with dogs. it is still true that a dog is the most useful and faithful animal in the world, but people have changed the reasons why they keep dogs as pets. they used to keep dogs in order to keep safe, but now they keep them as friends, because the city can be a lonely place .for a child, a dog is his playmate when he has no little friends to play with. for young people, a dog is their friend when they feel lonely at home. for the elderly, a dog is their child when their real children have grown up. now you can see