现在完成时教案

Time:June 13, 2018,Class: Class 5,Grade 8Teacher: Lu SuThe present perfect tenseTeaching Aims1. Master the structure and the usages of the present perfect tense. 2. Enable students to use the present perfect tense in their speaking and writing.3. Be proud of our country with so many beautiful cities. Key Points1. let the students understand the usages of the present perfect tense.2. The differences between past simple tense and present perfect tense.Difficult PointsEnable students to use the present perfect tense in their speaking and writing.Teaching MethodsPair work and self-study in groupsTeaching AidsAn electronic whiteboardTeaching ProceduresStep I. Greetings and Warming up1.Tell students of my travel story to Beijing.2.Show some sentences in the present perfect tense .Have you ever been to Beijing before?We have met Mr. Wu in the park.I havent been to the Great Wall.Step II. The present perfect tense1. The usage of the present perfect tense(draw a time line on the electronic whiteboard)1）表示过去发生或已完成的动作对现在造成的影响或结果；2） 表示过去已经开始并一直持续到现在的动作或状态.E.g. He has learned English since 2001.2.The structure of present perfect tense. 1). have/has+done 2). have/has+not+done 3). Have/has+been+done3. Change Verb into Past participle 1)一般情况下，动词词尾加 -ed ； 2)以不发音的-e 结尾动词，动词词尾加d； 3）以辅音字母 + y结尾的动词，把-y变为-i 再加-ed； 4）以一个辅音字母结尾的重读闭音节动词，双写词尾辅音字母，再加ed； 5）不规则动词的过去分词变化4. Exercises and check the answers.5. Ask students to find out Adv.& Prep.in the above sentences.6.Self-study in groups to learn the Adv.& Prep. Used in present perfect tense.7. The past simple tense and present perfect tense.1) Listen to a conversation, and answer the questions.2) Summarize the difference between the past simple tense and present perfect tense.8.PracticeWork in pairs to complete conversations according to the pictures, and be proud o