8bunit 1-1.doc

镇江实验学校英语教学案Unit 1 Past and present (1) 教学目标1.识记动词的过去分词形式并能够在语境中正确运用现在完成时。2.运用现在完成时谈论发生在过去并与现在有联系的事情。3.掌握以下词汇及句子：重点单词：repair, sentence, yet, exhibition, recently, ever, just, already,before,never, a few times, since 重点句型：Eddie has lived with Millie since he was born.We havent seen that film yet.Have you seen any exhibitions recently? Yes, I have./No, I havent.教学重难点 掌握现在完成时的用法。正确运用动词的过去分词形式。课前预习一 请你认真阅读书本13-16页，写出下列动词的过去式和过去分词：visit _ _ come _ _ live _ _ see _ _ repair _ _ be _ _ finish _ _ give _ _ move _ _ write _ _ watch _ _ make _ _ travel _ _ put _ _ eat _ _ learn _ _know _ _ have _ _go _ _ read _ _ 教学过程1.Lead-in:Ask some questions to present the present perfect tense.2.Presentation:Teach the students how to make statements and negative statements using the present perfect tense. And teach them how to form the past participles of some verbs. 3. Practice: Do some exercises. Finish Part A1on Page 14.4.Teach the students how to ask and answer questions using the present perfect tense. Then do some exercises. Finish Part A2 on Page 15.5. Find out the typical time expressions with the present perfect tense.语法讲解现在完成时一现在完成时用法：1. 用法一：表示过去发生或已经完成的某一动作对现在造成的影响或结果。常与just（刚刚），already（已经），never（从来没有），ever（曾经），recently（最近），before（以前），yet（还），once（一次），twice（两次），many times（很多次），how many times（多少次），等连用。 读一读，译一译，体会并操练。 1) I have already done my homework. _ 2) My little brother has never read this story. _3) We _just _ (hear)from her. 4) They _(be) busy recently. 5) _ you ever _(watch) this film? 2. 用法二：表示过去已经开始，一直延续到现在的动作或状态,有可能还会继续下去。常用的时间状语有：for, since(自从。以来)，this week, these days,so far（迄今为止），during/in the past/last three years（最近三年来）（读一读，填一填） for表示一段时间的词语 I have taught English _19 years。 since表示过去时间点的词语 He has been at this school _1986. since表示过去的时间状语从句I have lived here _ I was born. since一段时间ago. I have known him _ 20 years ago.二. 你注意到上面句子中的划线部分了吗?现在完成时的构成形式是: 助动词have/has+ p.p.(动词的过去分词)。三 动词的过去分词的构成：1.大部分动词都是规则变化，与过去式的变化一样，在动词词尾加ed; 如：work- _; live-_; play-_; study-_; drop- _2.不规则变化的动词过去分词见书P 121，需要同学们逐个记忆.四. 基本句型结构：1. 肯定句：主语+ have/ has + pp (过去分词)+ 2. 否定句：主语+ have not(havent) / has not (hasnt) + pp (过去分词)+3. 疑问句：Have / Has +主语+ pp (过去分词)+? Yes, 主语+ have/ has. No, 主语+ have not /havent. No, 主语+ has not / hasnt.（注：当主语为第三人称单数时，助动词用has ）填一填: A.用括号里所给动词的现在完成时完成以下句子1.Emily _(forget) to return the book to the library.2.Aunt Li _ (be) to Paris three times and she is going there again next week.3. David and Tom _ (not finish) the painting.4. Mr Li and his family _ (live) in this building for a long time.5. Eddie, _ you _ (see) my food?B.用现在完成时完成下列问题及回答;1. Q: _ (you write) to your cousin?A: No, _. Ill send her an e-mail tomorrow.2. Q: _ (she go) to Guilin already?A: Yes, _. She left Beijing this morning.3. Q: _ (your sister give) her Walkman to Nancy?A: Yes, _. She doesnt use it any more.练一练: 改写下列句子：They have finished their homework.否定句：_一般疑问句疑问句并肯定回答：_-John has played this computer game a few times.否定句：_一般疑问句疑问句并否定回答：_教/学后感：_巩固练习一 根据句意、首字母或中文提示写出单词：1.They havent finished their homework y_.2. Have you e_ watched the film, its very exciting.3. My bike is broken, can you r_ it?4. I havent heard from her _(近来).5. I have j_ eaten dinner,Im full.6. We have n_ heard of the man before.二写出下列动词的过去分词:play_ do_ land_teach_miss_call_ stop_shop_chat_prefer_study_copy_worry_fly_cry_come_see_be_give_write_make_have_go_forget_hear_do_know_ read_三用for 或since填空：1.Granny Wang has been ill _ last week.2. _ nearly 10 years, mother has worked in Sunshine Restaurant.3.Hong Kong has been back to China _ 1997.4.I have made a lot of friends _ I came to this school.5.-How long has your father stayed in Hangzhou? -_ three months ago. -Thats to say he has stayed in Hangzhou _ three months. Right? -Yes.四. 完成所给的现在完成时的练习，并划出现在完成时的时间状语：1. _ you _ (finish) your homework yet?2. How many times _ he _ (read) this story? Several times.3. I _ already _ (write) a letter to my pen friend.4. They _ just _ (arrive).5. She _ never _ (be) to Hong Kong all her life.6. My father _ (not visit) Shanghai before.7. _ Tom ever _ (swim) in the sea?8. They _ (plant) 200 trees recently.9. Mrs Liu _ ( teach) in this school since 15 years ago.10. We _ (study) English for six years.五 句型转换：1.Eddie has lived with Millie since he was born. (改为一般疑问句并作否定回答) _ Eddie _ with Millie since he was born? No, _ _.2.Miss Gao has taught English for ten years. (对画线部分提问) _ _ _ Miss Gao _ English?3. I have worked out this math problem. （改为否定句） I _ _ out this math problem.4.They knew me three months ago. （改为同义句） They _ _ me _ three months.5.I have been to the Great Wall twice. (对画线部分提问) _ _ _ _ you _ to the Great Wall?六 将下列句子译成汉语:1. 我刚把它吃了。 I _ just _ it.2他去长城了吗？是的，我也去过长城几次了_ he _ _ the Great Wall?Ye