Unit 3 What were you doing when the UFO arrived（第5课时）Section B 3a-4导学案一、学习目标能力目标：1. 继续学习 when 与 while引导的时间状语从句 2. 提高阅读和写作技能。 重点词语：ran, met, happen , anywhere , train station , run away , come in , think about doing sth.重点句子：While Linda was buying a newspaper at the train station ,the dog got out of his box and ran away .When Linda finally saw Davy ,he was jumping and running with another dog .难 点：短文理解与看图写文章二、预习导学1.根据音标学习新单词，并记住中文意思。 2.熟读P22的课文（对话）。3用when 和 while对3a中的活动进行描述4.知识点拨 讨论:happen的用法：1）表示“某人发生某事”常用_，如:What happened to you?A car accident happened to her this morning.2）表示“某地/某时发生了什么事”常用“sth.+happened+地点/时间”，主语是事物如:The story happened in 2012 . An accident happened in that street.3）表示“某人碰巧做某事”用 “sb.+happened+to do sth.”，如:I happened to meet a friend of mine in the street yesterday.run away 逃跑 walk around the station 在车站走来走去She didnt think about looking outside the station . 她没想到过要往车站外面看一看。think about 考虑 looking outside the station 是动名词短语，做think about的宾语。look outside 往外看 think about doing sth考虑做三、自学检测。A.听写或读出本课时的重点单词。 B.通过自学与合作学习，能快速写出这些词语。ran(原形)_ met(原形) _ happen_ anywhere _train station_逃跑_ 进来_考虑做某事_四、合作探究：1. 组内讨论预习的题目。 2跟小组长读3中的单词，并结对抽说中文意思。3. 自读课文，与同伴一起翻译课文并回答问题。1）What was Linda doing when Davy ran away? 2）Why couldnt Linda see Davy?3）Where was Davy while Linda was looking for him?4）What happened while Linda was looking for him?5）What was Davy doing when Linda finally saw him?4.细读课文，能理解并翻译全文。 5.让学生朗读短文。五、展示1、看图写故事,看谁写得又快又好，并评出写好的作为范文。2、游戏,两位学生扮演警察与小偷,用英语会话巩固过去进行时。六、学以致用。必做题. 单项选择（ ）1She said she a paper kite at 7: 00 yesterdayAmakes Bis making Cwill make Dwas making（ ）2I on the phone when a friend went into a barbers shopAtalked Bwas talking CtalkDis talking选做题. 描述自己喜欢的一种动物。 2