英语人教版八年级下册unit 5 Grammar focus-4c.docx

I 教学目标1 Knowledge Objectives：Ss can master the meaning, structure and the usage of the Past Progressive Tense and the clause of when and while.2 Ability Objectives: Ss can learn to describe what people were doing by using the Past Progressive Tense and the when and while clause.3 Moral Objectives: Learn the different expressions about how to talk about the things happening in the past. Cooperate with each other and communicate with each other.II 学情分析本节课为第五单元的第三课时。学生已经基本掌握了有关过去进行时的含义和句型等用法，为总结复习语法垫定了基础。本节课将在学生现有的知识水平上，对when和while引导的时间状语进行深入的学习和探讨，并进行大量的训练和应用。III 重点难点Teaching key points: The meaning, structure and the usage of the Past Progressive Tense and the when and while adverbial clause.Teaching difficult points: Ss can correctly use the when and while clause in the Past Progressive Tense. IV 教学过程Step 1 Warming upAsk Ss to make sentences one by one with when and while.E.g.: I was doing the dishes at eight last night. What were you doing while Ms. Xie was doing the dishes? While Ms. Xie was doing the dishes, I was sleeping.设计意图：学生句子接龙能够为课堂活跃气氛，达到预热效果。Step 2 Check homework online1. Open the teachers QQ message and check Ss homework-make conversations in pairs with the Past Progressive Tense.2. Correct the mistakes about the conversations.设计意图：运用QQ群作业功能，展示前一天学生口语作业的完成情况,既检查了作业，又提升了学生的学习积极性。Step 3 Presentation1.Show a task-chain on the screen. The chain is used for finishing tasks in this class. One road-block is one task.2.Tell Ss they are going for an adventure trip to hunt for treasure.设计意图：用闯关探险寻宝来吸引学生融入课堂，提高学习语法的兴趣。Step 4 Task1 Guessing game1. Watch a video about a disaster. Ask Ss what happened.2. Show some pictures of Chinese famous persons and guess what they were doing at that time.3. Ask: What was he/she/were they doing at the time of/while/when?设计意图：用龙卷风的视频来导入，设定动作发生的时间，通过图片让学生猜测名人在当时正在进行的动作，进一步激发学生的想象力和说英语的渴望。用人物不同的性别和数量来复习过去进行时的基本句型。Step 5 Task2 Review the Past Progressive Tense1. Ask one student to come to the front and explain the meaning, time and the structure of the Past Progressive Tense.2. Finish some sentences together. 3. T reads a chant about the Past Progressive Tense for the Ss.4. Ss clap their hands while reading the chant together.5. Ss read again faster.设计意图：探究一用文字呈现的方式来复习归纳过去进行时的基本用法。Step 6 Task3 Discuss and study when and while1. Read the phrases and sentences on the paper. 2. Discuss in groups and find out the rules of the usage of when and while.3. Fill in the blanks.4. Call some students to come to the front to explain for the classmates.5. Summarize the usage of when and while together.设计意图：探究二中，用两组不同的短语让学生体会瞬间和延续动作的区别，用四组不同的句子让学生探讨when和while在不同情况下的用法区别。Step 7 Task 4 Consolidation & Exercise1. Watch a micro-class about when and while.2. Do exercises.设计意图：微课中导入了对其他同学在过去的时间里正在做的事情的采访，激发学生的好奇心和学习兴趣，当中的讲解进一步归纳巩固了上一步学生讨论的成果。最后通过练习达到运用的目的。Step 8 Task 5 Practice: write and connect1. There are eight groups students. Ask each group of Ss to write down one kind of sentence parts. Group 1 and 2 write the subjects, group 3 and 4 write the continual verbs, group 5 and 6 write the momentary verbs, group 7 and 8 write the places. Each group should write down six different phrases on the card.2. The group leader hand in the cards.3. Call students to draw cards according to the teachers instructions and put them up on the blackboard.4. The other students speak out the sentences by connecting the phrases.设计意图：连词成句的游戏能够让所有同学都参与到课堂，增加了课堂的趣味性，同时也达到了练习when和while的用法的教学目的。Step 9 Task 6 Competition1. Call four students to draw three cards and act out the three actions at the same time.2. The others make different sentences with the Past Progressive Tense.设计意图：抽取卡片表演，为学生练习说句子提供了良好的语言情境，使本堂课真正达到了运用的目的，语法课不仅仅是语法的