英语人教版七年级上册现在完成时态的用法（一）和常与现在完成时态连用的副词.doc

英 语 公 开 课 教 案授课人：李永明1 教学内容：现在完成时态的用法（一）和常与现在完成时态连用的副词。2 教学目的和要求：A 知识目标：通过教学，使学生熟练掌握现在完成时态的构成和基本用法，并熟练掌握与之连用的副词。 B 能力目标： 提高学生运用所学知识进行解决问题的能力。 C 德育目标： 通过学习使学生树立较强的自信心，形成克服困难的意志。3 教学重点和难点：A 重点：要求学生正确理解现在完成时态的用法。B 难点： 现在完成时态与一般过去时态的用法区别。4 教学手段：主要以多媒体辅助教学贯穿整个教学过程。6 课型： 新授课（语法教学课）7 教学时间：1个课时。8 授课时间： 2006年12月12日第三节课。9 教学过程：Step 1 Orgonization: Greets: Good morning! Boys and girls, Who is on duty today? - -Step 2 Revision:复习一般过去时态和一般现在时态1 He closed the door.2 I put the books on the desk3 We came into the classroom 用法；一般过去时态表示在过去时间发生的动作。1 The door is closed now.2 The book is on the desk now. 3 We are in the classroom now. 用法：一般现在时态表示现在存在的情况或状态。Step 3 Presentation:(1) 讨论：如何把两个句子合并成一个句子？ 1 He closed the door. The door is closed now He has closed the door.2 I put the books on the desk. The book is on the desk now . I have put the books on the desk.3 We came into the classroom .We are in the classroom now. We have come into the classroom.得出：现在完成时态的构成： 助动词have/has+动词的过去分词(2) 复习动词的过去式和过去分词：说出下列动词的过去分词：1 do 2 see 3 go 4 bring 5 sit 6 study 7 read 8 make 9 find 10 am/is/are(3) 思考： 现在完成时态的用法是什么？今天我们学习现在完成时态的第一种用法：表示过去发生的动作对现在造成的影响或结果。强调：这种时态必须是过去的动作与现在的结果的结合体。注意：只强调过去的动作用一般过去时态；只强调现在的结果也只能用一般现在时态。（4）体会现在完成时态的用法：比较以下几组句子。1 He cleaned the classroom. The classroom is clean now （过去的动作） （现在的结果） He has cleaned the classroom. 2 I wrote a word just now. The word is on the wall. （ 过去的动作） （ 现在的结果） I have written a word on the wall.3 She turned on the lights. The lights are on now. ( 过去的动作） （现在的结果） She has turned the lights.(5) 学习常与现在完成时态连用的副词just. ever. already. yet. before. never 1 Have you just come from Beijing? Yes,I have just come from Beijing. (just“刚刚”常用在肯定句或否定句的助动词之后） 2 Have you ever seen this movie? (ever “曾经”，常用在一般问句之中） 3 She has already written a letter to her father. ( already “已经” ，常用在句中，助动词之后） 4 Have you brought your photos yet? No,I havent brought your photos yet. (yet “已经“用于一般问句之尾； “还”用于否定句之尾） 5 They have (not) made a model ship before. (before “以前“ 用于肯定句或否定句的句尾） 6 We have never seen such a good car. ( never “从来没有”位于助动词之后）Step 4 Practise（1）用所给词的现在完成时态填空.(3分钟完成)1 He ( read) a book. He has read a book.2 She (sit) on the floor. She has sat on the floor.3 They (see) a new movie. They have seen a new movie.4 I (bring) some story books here. I have brought some story books here.5 Lilei and Lintao (go) to Beijing. Lilei and Lintao have gone to Beijing.6 You (study) a new lesson. You have studied a new lesson.(2) 把下面的句子变成一般问句和否定句。1 He has read a book. Eg:Has he read a book? Yes,he has./No,he hasnt. He hasnt read a book.2 She has sat on the floor.3 They have seen a new movi