《unit3SectionB》学案（人教新目标版）.doc

励志小木屋：Today must borrow nothing of tomorrow.今日事今日毕预习目标：1、知识目标：2. 能力目标：1）.能联系上下文理解课文 2）.能谈论过去发事情3）.能利用情景思维 3.情感目标：热爱科学，探索科学预习重点：while, when引导的时间状语从句，过去进行时预习难点：while, when引导的时间状语从句，过去进行时 一、自主预习：（一）预习任务： Task1. 英汉互译：Climb a tree_______ be too scared_______ at the doctor’s _____________outside the house _______ 跳下_______ 逃跑，跑开 ____________在火车站_______ 喊某人的名字 _______ Task2、通过预习3回答问题 (二)预习诊断：下列各句均有一处错误，请指出并改正1. The child was shopping while she saw the alien get out.2. Grandma was cooking breakfast when I was washing my face this morning.3. I read a history book when someone knocked at the door. 4. What did you do at ten o’clock last Sunday morning?5. While the alien was in the museum, I was calling the TV station.6. You can imagine how strange was it! (三)预习反思：Do you have any question?二．课中实施： Step1.预习交流 Step2. Warming-up Step 3: Lead- in Step4 Practice Step 5 精讲点拨: What happened while Linda was on the telephone?琳达打时发生了什么？Happen 常指具体事件的发生，特别指那些偶然的或未能预见的事件的“发生”eg: A car accident happened yesterday.昨天发生了一场车祸。

如果表示“某人发生了某事”，常用结构“某事+happen(s) +to+某人”Eg: An accident happened to Tom yesterday.Sb. happen to do sth. “某人碰巧干某事“Step 5 拓展延伸：词的适当形式填空buy, take a photo, get out of, call the police, cook1. He ____ for me in the park yesterday.2. I ___ when I saw a thief in the supermarket.3. He saw an alien___ the UFO.4. He____ some fruit from the fruit shop yesterday.5. The girl_____ dinner when her mother came back.Step 6 Summary三、 限时作业 （每空一分，共10分） 得分率______选择 1. There is a bird singing____ the green tree. A. in B. on C. into 2. The leaves____ the tree are getting yellow. A. in B. on C. into 3. I can’t find my dictionary_____. A. somewhere B. anywhere C. nowhere D. not where4. I ____ a book when he came in. A, am reading B. am looking C. was reading D was looking5. ____ coming to ask something about the car accident.A. A police is B. The police C. The police is D. The police are 6.. What were you doing when your father ____ back from work?　 A.   was coming   B .  comes  C.  came   D. is coming 7. Masha____ when the doorbell____. A. is cooking, ring　　 B. was cook, rang　 　C. was cooking, rang D. cooked, rang8. What____ while Linda was on the telephone? A.  was happened      B.  was happening      C.  happened       D. happens9. ——What_____ you, Tim? —— I failed my test. A. happened          B.  happened to     C. was happening to        D. was happened10. Did you find your keys____? A.   somewhere        B.  anywhere       C.  everywhere         D. nowhere Homework: 句型转换1. I was playing the guitar at this time yesterday？(划线提问)_____ _____ you _____ at this time yesterday?2. She washed clothes last night.(改过去进行时) She _____ _____ clothes last night.3. He is looking at the souvenirs now. (用now 改写) He ____ ____ at the souvenirs ____ _____ _____.4. You’d better go to see her tomorrow. ( 改否定句) You’d ___ _____ ____ to see her tomorrow5. I think there’s something interesting in his story.( 同4)I_____ ____ there’s _____ interesting in his story.学后反思：。