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1、Unit 5 What were you doing when the rainstorm came第三课时Section A(Grammar Focus4c)【学习目标】1引导学生熟记并正确使用下列单词和短语：have a look，icy，kid。2引导学生继续学习如何正确使用过去进行时。3帮助学生理解并正确使用when和while，能够正确利用when和while描述自己的日常生活。【学习重点】掌握在过去进行时中运用when和while，且能正确区分when和while。【学习难点】总结归纳when和while的区别。教师询问一位或几位学生他们的家人在过去的某个时间正在做的事情。T：Wh
2、at were you doing at nine oclock last Sunday morning?S：I was doing my homework.T：What about your mother?S：She was cleaning the house.Task 1【组内小展示】先由各小组组长带领组内成员认读单词和词组，再在整个小组内进行齐读后对词汇的用法进行归纳，并标记出发音和理解困难的单词，可及时向老师求助。最后，板书展示内容。【班级大展示】1I can read.(我会读)带读齐读，注意icy的发音；通过游戏形式，如单词游戏来巩固单词的学习。2I can write.(我会写
3、)以answer quickly(抢答)的方式对词组进行中英互译；带读齐读；抽测：可以用造句的方式巩固词组的用法。3I can use.(我会用)比较when和while在过去进行时中的用法，并填空；抽测：用【小试牛刀】中的练习再讲解。情景导入生成问题1(T)Question：What were you doing at nine oclock last Sunday morning?(S)Answer：_2(T)Question：What about your mother?(S)Answer：_自学互研生成能力Task 1Lets read the new words and phrase
4、s.1I can read.(我会读)have a look，icy，kid2I can write.(我会写)(1)begin to do sth.开始做某事 (2)help sb.do sth.帮助某人做某事 (3)help sb.with sth.在某方面帮助某人 (4)take photos 拍照片 (5)buy a drink 买饮料 (6)turn on the radio 打开收音机 (7)take the car to the car wash 把车送到洗车处 (8)wake up 唤醒 (9)make ones breakfast 做某人的早餐 (10)have a look
5、 看一看 (11)be in bad shape 变形 (12)because of 因为；由于 3I can use.(我会用)辨析过去进行时中的when和while：when和while都可表示 “当的时候”，引导时间状语从句。但两者在过去进行时中的用法有所不同。请仔细观察下面的例句，然后补全空格中的内容。(1)I was walking to school when I saw a cat in a tree.(2)When Sally arrived home，her mother was cleaning the house.主句的动作是持续性的，而从句的动作是短暂性的，此时when
6、 引导时间状语从句，主句用过去进行时态，从句用一般过去时态。(3)While I was sleeping in the bedroom，someone knocked at the door.(4)David fell down while he was riding his bike.主句的动作是短暂性的，从句的动作是持续性的，此时 while 引导从句，主句用 一般过去 时态，从句用过去进行时态。(5)While Andy was waiting for the bus，he was reading a newspaper.(6)He was cleaning his car while
7、 I was cooking.主句和从句的动作在过去的某时刻或某段时间同时发生，而且动作都是持续性的，此时用 while 引导从句，而且主句和从句都用过去进行时态。用when和while填空。We were talking when the teacher came into the classroom.I was doing my homework while my mother was cooking in the kitchen. While the boy was walking in the street，a UFO landed in front of him. When I sa
8、w the boy，he was talking in the phone.Task 2【组内小展示】小组内先讨论并核对Task 2的相关答案，再在组内讨论设置情境表演对话。最后，在黑板上板书展示内容。【班级大展示】1I can practice.(我会练)以抽签的形式，抽选同学完成Task 2中的对话；带读齐读。2I can make conversations.(我会编对话)根据任务利用教材4a表格中的信息编写对话；设置情境编写并表演对话；根据对话内容 ，对学生进行随机提问。3I can use.(我会用)完成I can use 中的对话，板书在黑板上；用检测的形式在全班讲解。【备注】Ta
9、sk 2Make conversations about your accidents.1I can practice.(我会练)A：What were you doing at seven am.?B：I was doing my homework.What_about_you?A：I was watching TV.A：What were you doing at 11：30 in the morning?B：2I can make conversations.(我会编对话)结合课文内容及教材4a编写对话并表演。 A：What was John doing when Mary bought
10、 a drink?B：He was taking photos.A：Was John playing the piano when Mary left the house?B：Yes，he was.A：What did Mary do while John was cleaning his room?B：She turned on the radio. 3I can use.(我会用)将下列对话补充完整，使之成为通顺的对话。(1)A：What were you doing when the rain started?B：I was watching a movie in the theater
11、.A：Was your sister with you?B：No.She left the theater while_ it was raining.(2)A：What were you doing when I called you up this afternoon?B：I was doing my homework.A：Youre lying.You were swimming in the pool，I think.(3)A：What happened to you yesterday?B：While_ I was walking down the street，a car knoc
12、ked into me.A：Were you hurt badly?B：No.It was not serious.When the car knocked into me，I jumped onto it.交流展示生成新知Show in groups.(Time：six minutes)Task 1First the students read the words and phrases in groups，then read together and sum up the usage of the words in groups，then mark the difficult words in pronunciation and understanding(they can ask the teacher for help)At last write them on the blackboard.Task 2First the students discuss and check the answers in Task 2，t
