八年级英语下册Unit5Whatwereyoudoingwhentherainstromcame（第3课时）教学设计（新版）人教新目标版

What were you doing when the rainstrom came

What were you doing when the Unit 5 rainstorm came? Period 3 Content Section A Grammar Focus, 4a, 4b, 4c 教学目标要求 1．能掌握过去进行时的构成：was / were doing等。 2．能表达过去某一时刻正在做的事情：Ben was helping his mom make dinner when the rain began to beat heavily against the windows. 3．能掌握动词变-ing形式的方式：dropping, taking, guessing, allowing等。 4．能学会用when, while表达某动作、某事件发生的时间: Ben’s dad was putting pieces of wood over the windows while his mother was making sure the flashlight and radio were still working. 等。 5．能区分when和while的区别：when用于引导短暂动词表达的时间状语从句；while用于引导延续性动词表达的时间状语从句。

教学过程 活动 复习 时间 3 m 导入 时间 3 m 2 1 步骤 教与学活动目的及其操作 复习已学目标语。 展示图片，并就图片内容让学生复述上一课所学 句子。 引入本课语法。 Read the sentences in 3b. 让学生以问答的形式朗读3b中的句子。 读句子，感知目标语。 Student A and Student B. Can you read the sentences 3 Grammar Focus 时间 10 m 4 in Grammar Focus for us together? 让两个学生以问答形式朗读Grammar Focus中的 例句。 总结归纳目标句式。 Look at the sentences and summarize the structure of Past Progressive Tense. 教师要求学生观察这些句子并归纳出过去进行时态的构成特点。 教学资源运用 复习已学相似时态，帮助理解目标语。 — Now I am talking to you, what are you doing? — I am listening to you. — Look! What is she doing? 5 — She is listening to you, too. — Listen! What are they talking over there? — They are talking about your questions. 通过改时间状语复习现在进行时态 通过时态对比，帮助学生理解。 Look at the chart; compare the Present Progressive Tense and Past Progressive Tense. 通过列表与现在进行时态的对比，启发和引导学生思考什么时候用过去进行时。在学生比较时给予学生 6 提示： 1．两栏谓语部分的结构有什么不同？ 2．两栏例句中时间状语有什么不同？ 3．两种不同谓语结构的表意功能有什么不同，分别 表达什么概念？ 在学生初步比较之后再给学生出示第二个表格。 进一步细化语法点。 Now let’s review how to add -ing to a verb. Read the words together. 教师带领学生复习现在分词的构成，可以列举一些学过的动词现在分词： 如：dropping taking guessing, allowing getting arguing communicating explaining copying7 returning continuing comparing causing going picking reporting beating falling rising realizing swimming 先带读这些分词，让学生写出这些动词的原形。 After we read the words, can you summarize how to change? 让学生尝试总结。 练习巩固。 8 Write the -ing form of the words. 让学生写出下列动词的-ing形式：