江苏省盐城市阜宁县明达初级中学八年级英语下册 8B Unit 1 Past and present Grammar A and B教案 牛津版.doc

江苏省盐城市阜宁县明达初级中学八年级英语下册 8B Unit 1 Past and present Grammar A and B教案 牛津版总课题8BUnit1 Past and present总课时10第5课时课题Grammar (A,B)课型新授教学目标知识目标1.To learn some new words.2. To learn the use of the present perfect tense and time expressions with it.能力目标To understand the difference between the present perfect tense and the simple past tense情感目标To teach the students to say “ I have done a good thing .”教学重点与难点The use of the perfect tense: have/ has +p.p.教学资源A small blackboard ,some pictures .课前预习内容1.Preview the new words. 2. Pre-learn the present perfect tense时间5minutes方法 Read and understand要求Can use the present perfect tense .教 学 过 程教 师 活 动二次备课Step 1. Pre-checking1. He has eaten an apple .2. You have read English .3. They have cleaned the room .Step 2.Lead in the present perfect tense.T: When did you have breakfast? S:I had breaskfast an hour ago.T: He had breakfast an hour ago. He has had breakfast.(Bb)T: Where did you study English last term?S: We studied English in Shanxi No.2 Middle School.T: Yes. You studied English in Shanxi No.2 Middle School. You have studied here for about two years.(Bb)我们用一般过去时谈论过去发生的动作,但当过去发生的动作和现在有联系有影响时,我们用现在完成时态.(Refer to P9)Structure: have/has+V(过分)Step 3.How we form the past participles of verbs P10 (Add the simple past forms)Add: have-had-had hear-heard-heard buy-bought-bought go-went-gone do-did-done eat-ate-eaten forget-forgot-forgotten cut-cut-cut read-read-read Step 4.Explain the use of the present perfect tense.(一) 基本用法:1.到现在为止这段时间已发生的情况.动作从过去延续到现在.eg. She has been ill for three days. (Shes been) We have learned 2,000 English words. (Weve )1. 某个动作虽是过去发生,但其后果和影响及于现在.eg. Thanks you.Ive had my supper.(现在用不着吃) Tom has seen the film.(对这部电影有所了解)(二) 时间状语:already,yet(否,疑),since,ever,never,just,before(句尾),for+时间段,recentlyeg. She has already finished her work.I have ever heard about it.Step 5.Change the above sentence patterns to general questions, negative sentences and question the underlined parts.Step 6.Make sentences P10 A1Step 7. Compare the difference between the present perfect tense and the simple past tense.现在完成时的特点是某一动作发生与现在有联系,一般过去时则单纯谈过去发生的某一动作,不涉及对现在的影响.eg.Simon has lost his watch./Simon lost his watch. Have you bought a pen?/When did you buy the pen? What did you have for lunch?/Have you had lunch?etc注:句中有表示过去的时间状语如yesterday,last week,ago etc,不能用现完.Step 8.Chat time P11,A2Step 6.Sum up We learn the use of perfect tense . Step7. Exercises & Homework:1.Can say transport .2.Preview P16-17 .教后反思：