九年级英语Repeatthesethreewordsdailyreduce，reuseandrecycle教案.docx

Unit 2Repeat these three words daily：reduce，reuse and recycle【教学目标】词汇china，divide，policy reuse，used，bottle，throw away，repeat，reduce，lunchbox，ton，tons of，rubber，recycling，rapid，step，grandson，granddaughter 句型1.Do you divide the waste into things to recycle and things to throw away? 2We all need a healthy environment，but we produce waste every day，and it is harmful to our environment.3Although it takes energy to change things into something else，it is better than throwing things away or burning them. 4We cannot hope for rapid change，but lets take these simple steps today 重点难点1.本单元词汇和重点句型。2构词法。【教学思路】本单元的教学内容是第十二模块中的第二单元。本单元首先通过提问的方式使学生思考自己日常生活中的行为是否环保，进而引出三个关于环保的关键词“reduce”“reuse”和“recycle”，并详细解释如何在日常生活中做到这三个方面。【教学准备】黑板，录音机，卡片，多媒体等。【教学过程】Step 1 Warming up1通过上单元的学习，我们对环保有了一个初步认识，并感受到了环境问题的严重性，下面请同学们思考几个问题：Do you walk or ride a bike to school?Do you buy new clothes just because they are modern?Do you turn off the lights when you leave the room?Do you take your own bag when shopping and not ask for a plastic bag?Do you buy drinks in bottles？And what do you do with the bottles when they are empty?Do you divide the waste into things to recycle and things to throw away?2教师再出示P99上的两幅图片，让学生看图，讨论问题：Which things are good for the environment and why?活动小结：让学生们通过思考这几个问题引入课文，打下基础。Step 2 Presentation1学习新单词。(1)教师出示瓷器图片，教学生学习单词“china”，让学生跟读单词，并让学生区别“China”和“china”。(2)教师出示一塑料制品，教学生学习单词“plastic”，并讲述“塑料”一词的来源。(3)教师出示一张报纸，向学生展示其中有关政策方针的版面，教学生学习单词“policy”。(4)教师将一个木板放在相邻的两个学生中间，教学生学习单词“divide”，并引出“divide into ”。(5)教师展示一个一次性纸杯和一个玻璃瓶，教学生学习单词“bottle”和“reuse”。(6)教师拿出自己的手机，教学生学习单词“used”。(7)教师将一个废纸团扔进垃圾篓，教学生学习短语“throw away”。(8)教师由单词“kilogram”引出新单词“ton”以及短语“tons of”。(9)教师展示橡胶树和轮胎的图片，教学生学习单词“rubber”。(10)教师由单词“fast”和“quick”引出新单词“rapid”，并讲解三者之间的区别。(11)教师展示植树过程的图片，教授新单词“step”和短语“take steps”。(12)教师展示一张某家庭的家谱，教学生学习新单词“grandson”和“granddaughter”，并复习其他家庭成员的称呼。2操练单词。(1)给学生几分钟记单词，然后教师把带有单词的卡片拿出来让学生依次拼读。(2)教师可以把学生分成几组进行单词拼读比赛。活动小结：教师以图片的形式导入新单词，以图记忆单词，找几名学生比赛记单词，提高效率，巩固记忆。Step 3 Reading & Practice1Let students listen to the reading and pay attention to the words pronunciation and intonation. (1)教师播放阅读部分的录音，让学生仔细听录音，注意重要单词的语音和语调。(2)对于比较长的句子，让学生多听几遍，注意长句子的断句和连读，让学生跟读几遍。(3)教师播放录音的时候，注意是一句一句地播放，让学生试着跟读。(4)听读完阅读文章，让学生完成Activity 2，让学生来试着分组讨论答案，师生一起核对答案。学生可能出现的讨论结果：(1)We should try to walk to school because it can reduce pollution.(2)We should open the window instead of turning on the air conditioning so that we can save energy. (3)We should not buy clothes just because they are the latest fashion because it may waste money. 活动小结：让学生多听、多跟读，加强语感、语速，培养语流、语调，提高阅读理解能力。2Let the students translate the passage. (1)首先让学生自主细读全文，把握内容与结构，具体步骤：先把每段读懂，每段读完能概括出其大意，确保一段读懂再继续看下一段，此步骤可帮助学生了解每段内容，这样做题时找答案可以迅速找到位置；了解每段意思后，再看全文，深入了解段与段之间内容的联系，把握全文的结构，从整体上更好地理解全文。(2)教师让学生四人为一组，给几分钟的时间，让学生以组为单位来读文章并对文章进行逐句翻译，确定每句的最佳翻译。3Language points在学生翻译文章的同时，让学生找出文中的重点短语和句型。教师把本单元的重点短语和句型写在黑板上，带领学生一起学习。4对重点内容和疑难问题进行合作探究学习，自主完成后，小组合作，交流补充。(1)Do you divide the waste into things to recycle and things to throw away?throw away意为_，其后可接名词或代词作宾语，当宾语为代词时，代词必须位于副词away的_。例如：重新使用废弃物对我们的环境有好处，所以不要扔掉它们。Reusing waste is good for our environment，so_(2) and it is harmful to our environment.句中be harmful to意为_，其反义短语“对有好处”可表达为_。例如：如果你伤害她，你将受到惩罚。Youll be punished，_.自主造句：_.(3)Use things for as long as possible. as as possible意为_，有时可表达为“as as sb can”，“asas”中间为形容词或副词的_级。例如：当她听说那个消息的时候，她尽可能快地回家了。When she heard of the news，_(4)It is better to use china cups and cloth bags because they can be used many times.Itsadj.to do sth.的意思_例如：学好英语是重要的。_自主造句：_5Complete Activities 4，5 and 6.活动小结：首先自主学习，锻炼学生独立思考的能力；以小组为单位翻译课文，既发挥小组合作精神，使学生为了小组的荣誉会更加细心、认真，又调动了他们的学习积极性。逐句翻译，使学生能更深刻地理解课文。Step 4 ConsolidationFinish the exercises.ReduceReduce means“use less”Do not_1_things.It saves money and reduces_2_and waste going into the environment. Before we buy something_3_，think whether it is really necessary because maybe the old one will be just as good！When we do buy things，choose_4_products if possible，and try not to buy too many things from abroad. ()1.A. useB. wasteCbuyD. make()2.A. pollution Bpopulation C. products Dprogress()3.A. beautiful B. colourful C. old Dnew()4.A. cheap B. expensive C. local DabroadReuseReuse means“use again”Use things for as_5_as possible. When we buy things，make sure that they_6_a long time. We should look after them so that they will last，and we should _7_them if it is not necessary to throw them away and buy new ones.Dont use a paper cup or a paper bag.Its better to use a china cup and a lunchbox_8_you can use them again.()5.A. long B. short Cmuch Dlittle()6.A. make B. stay Ctake D. last()7.A.buy Bsell C. repair Dmake()8.A because B. so C. if Dwhen活动小结：通过学习重点句型，提炼知识点，让学生能简单明了地认识知识点，从而更加牢固地掌握。Step 5 WritingWork in pairs.Make a list things you can do to make your school greener.Complete Activities 7 and 8.可能的讨论结果：Dont throw bottles away because its better to recycle them Do turn off lights so that you use less energy. All of us take an active part in recycling programmes.We use or buy products made from recycled materials.Such as ，why do we recycle them？Because (your opinion)活动小结：让学生提升语言运用能力。Step 6 Homework1Review Unit 2.2Choose one of the two and finish it. (1)Make suggestions about how to make y