全国中小学全国中小学“教学中的互联网搜索教学中的互联网搜索”优秀教学案例评选优秀教学案例评选教案设计教案设计一、一、教案背景教案背景 1，Facing students： Middle school 2 2. Subject：English2. Class hour：2 3Before the students to： Read the text early, understand the general meaning. Review the new words, must read the pronunciation of the word. .Self-study dialogue, thinking about the problem of after class二、二、教学课题教学课题 教养方面： 1. To read the dialogue accurately, fluently. 2. Understanding the text content, can according to the text imagination of the sentence. 教育方面： 1. To understand the conversation of talking about Australia.2. To learn how to introduce a famous place. 3. To learn Instructive Attributive Clauses with that 发展方面： Train envision ability of the students, thinking ability, language ability.三、三、重点难点重点难点1. Key vocabulary : friendship n. 友谊 classmate n. 同班同学 in fact 事实上 personal adj.个人的 2. if 引导的条件状语从句四、教学方法教学方法Bottom-up, interactive approach五、五、教学过程教学过程Explain how to import the courses, mainly the school of design, knowledge developing etc.Teaching point： To understand the conversation of talking about Australia.教学过程： 课前延伸课前延伸 设疑激趣，导入新课。设疑激趣，导入新课。 If there is no buying and selling of animals, there will be no killing in nature. The students wont have a sports meeting this weekend if it rains If she comes here tomorrow, I will tell you. 翻译以上几个句子。课内探究课内探究Step 1 If 从句的构成: If you ask him，从句 he will help you主句 如果你请他帮忙，他会帮你的。 Print the photo if you like it. 如果喜欢这张照片就把他打印出来。 主句 从句 If：从属连词，意思是：“如果，假如，倘若” Step 2 If 从句的位置： if 引导的条件状语从句既可以放在主句前，也可以放在主句后。从句位于主句之前时，常用逗 号与其隔开。 Step 3 If 从句的时态： 主祈从现： If you want to get good marks,study hard.listen to teacher carefully.do homework by yourself.If you want to get good marks,Dont talk in the class.copy homework.cheat in the exam.主将从现： If it is sunny this weekend, I wont stay at home.I wont watch TV. If I have enough money, I will buy a mobile phone.I will buy a car. If I invite foreigners to China, I will go to West Lake.I will go to Mount Tai 主情从现 (can may should must )： 1 If you tired , you must have a rest. 2 If you feel hungry, you should eat something. 3 If you are ill, you should go to see a doctor. 虚拟语气的条件或假设时，从句多用过去时或过去完成时： If I were you, I would invite him to the party. I would have arrived much earlier if I had not been Caught in the traffic1. If he hard, he will get good grades. A. study B. studies C. will study D. studiedif 意为“如果”，引导条件状语从句，可放在主句后，也可放在主句前，常用逗号隔开， 主将从 现，选 B。 2. Mary will go to San ya if she a five-day trip.（ ） A. have B. had C. will have D. has if 意为“如果”，引导条件状语从句 ,主句用将来时态，从句用一般现在时，选 D 3. Please stay at home if it tomorrow.A. rains B. rainedC. will rain D. rain if 引导条件状语从句 ,主句放在从句之前，主句是祈使句，从句用一般现在时，选 A 精讲点拨精讲点拨if 引导的条件状语从句与 if 引导的宾语从句的区分： 1、if 在句中的含义不同：I want to know if he is a teacher.whetherif 在宾语从句翻译为“是否”。Ill go to see you if I am free next week.如果if 在条件状语从句中翻译为“如果” 2. if 在从句中的位置不同： I dont know if the train has arrived. I will go out tomorrow if it doesnt rain. If 引导的宾语从句放在主句之后；而 if 引导的状语从句可放在主句之前也可放在主句之后 If 引导的条件状语从句放于句首时多用逗号隔开；而 if 引导的宾语从句则不能。 3. 时态要求上有区别： (1 ) I want to know if there a sports meeting next month. If 引导的宾语从句的时态由主句及本身时态决定 (2) If it , well hold it. If 引导条件状语从句的时态为一般现在时记住“主将从现” 学后用 Practice 一、找出下列句子中那些是 if 引导的条件状语从句，那些是 if 引导的宾语从句？ 1. Can you tell me if she can come to the meeting ? 2. She will not go there if it is rainy tomorrow. 3. I cant guess if she will be angry . 4. If we help each other , we both will get good results 二、用所给词的适当形式填空。 1 If I _(not understand） ， I will ask my teacher for help . 2 If I _(copy ) your homework ， I will cheat myself . 3 If she _(not get ) up early，shell miss the early bus . 4 If your mother_ (buy) the book for you ，it will be good for your study.课后提升课后提升 1、If she here tomorrow, I will tell you. A. comes B. will come C. come D. came 2、Im waiting for my friend. , Ill go shopping alone. A. If she comes B. If she doesnt come C. If she wont come3、Tom wants to know if you will have a picnic tomorrow. Yes. But if it _, well play chess instead.A. will rain B. rained C. is raining D. rains 4、If Tom _ the game, well give him a surprise“. A. win B. wins C. won D. miming二、用所给词的适当形式填空。1. If you _(feel) tired, you _ (have) to have a rest.2. Where _ he _(see) the film if he _(have) time?3. If there _(be) fewer trees, there _( be) more pollution.4. He _(dress) more casually if he _( not work) on weekends.5. If Marcia _(live) alone, she _( keep) a pet parrot.6. Lana _ buy) a new dress if the old one _(be) out of style.7.The twins _(fight) if they_(argue).8. I _(have) a bake sale if I _(need) money for education.9. Peter _( send) me a