英语人教版九年级全册un it13sectionB.doc

Unit 13 We are trying to save the earth!教学设计本课是Unit13的第一课时，主要话题是环境保护，主题图有四幅，分别是噪声污染，空气污染，水污染，土地污染的具体例子，这些图片的展示主要是为了让学生对环境的破坏有一个直观的认识，从而激发他们强烈的社会责任心和对未来发展的思考。 一、 教学目标：（一）知识与技能1、知识与能力目标：学习并掌握单词:litter, advantage, bottom, fisherman, coal, ugly, cost, wooden, plastic, take away短语:be harmful to, at the top(of sth.) , take part in.基本句型：Were trying to save the earth!The river used to be so clean.The air is badly polluted. 能力目标: 能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。情感 态度 价值观有环境危机意识，学会关注环境，懂得保护环境从我做起，人人有责。（二）过程与方法通过“情景教学法”和“讲授法”，使学生掌握基础知识、基本技能和学科基本思想方法，给学生营造轻松愉悦的氛围，让学生在玩中学，这是实现学生在教学中认识主体作用的一次质的转化，体现出教师为主导，学生为主体的课堂结构。二.教学重点和教学难点（一）教学重点1.掌握本课所学的单词及短语（听、说、读、写四会）。2.能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。3.保护环境的措施方法（二）教学难点能正确运用现在进行时，现在完成时，被动语态，情态动词和used to 句型。（三）教学工具1.ppts and tapes 2.Exercises books三.教学时间：2015年3月24日四.教学过程。Step1 Revision and lead in1.复习：检查生词的预习情况2.导入新课：用PPT播放迈克尔.杰克逊的音乐视频The Earth Song，让学生看完之后说出视频展现了什么内容和这首歌要表达什么，从而引出环境污染的话题。（板书题目）(设计分析：采用情景导入法导课，在复习所学重点交际用语的基础上，通过音乐视频，自然导入新课。)Step2 Presentation(教学1a-1c)1.让学生观察单元主题图，说说他们在图片中看到什么，然后两人一组把方框内的污染情况分类。提问个别同学，全班核对答案。2.让学生读1b活动要求及表格内容，分析需要填写的词性。教师先帮助学生明确要求， 并且给出定的指导。播放第一遍录音，学生完成1b活动，与同伴交流核对。(Keys: really dirty rubbish fish litter waste governmentclose down clean up)3. 播放第二遍录音，选出你听到的句子 1) We could go fishing in the river.2) The river was really dirty.3) The river has always been the nicest river in this town.4) We should ask the teachers for help.Step3 pair work让学生朗读1c对话，然后分小组根据1b表格内容进行口语训练。不同层次的学生提出不同的要求。(基础一般的学生模仿1c，基础较好的学生应拓展内容，同时提醒学生注意分角色表演时的动作和表情。)Step4 Listen and write1. 2a Listen to the interview. Circle the kinds of pollution that Jason and Susan talk about.A. land pollution B. air pollutionC. noise pollution D. water pollution(Keys: B A)2. 2b Listen again and complete the sentences.1) The air is badly polluted because there are _ on the road these days.2) Factories that burn coal also _the air with a lot of black smoke.3) There is also too much rubbish and waste. People _things every day.4) People are also littering in _like parks. This is turning beautiful places into ugly (丑陋) ones.(Keys: more cars pollute are throwing away public places)3. Listen and answer the questions.1) Who is the interviewer talking to?2) What are they talking?3) What other problems do they see?(Keys: Susan and Jason.The environmental problems.Theres too much rubbish and waste in the streets.)Step5 Pair work: Use the information in 2a and 2b to role-play conversations between Jason and Susan. (Jason: The air has become really polluted around here. Im getting very worried. Susan: Yes, I used to be able to see stars in the sky.)Step6 Discussion让学生阅读附录中的听力材料，找出对话中air pollution和land pollution的原因，然后学生四人一组讨论生活中还有什么导致这两种污染，讨论结束后，请几个学生汇报讨论结果。Step7 Homework 1. 把学生分为六人一组，实地考察并讨论家乡的不环保现象有哪些，ppt展示相关图片，然后列出五种小组成员认为最严重的现象。小组内讨论阻止这些现象产生的措施和办法，至少给出两点建议。2. 让学生把小组讨论结果写成一封信，在信中列出家乡不环保的现象及相应的解决建议。五.板书设计Pollution：noise Pollution air Pollution water Pollution Land PollutionProblems: loud music ,cars rubbish ,factories ,putting waste water into the riverSolutions: close down the factories, help to clean up the river, Take the bus ,bring a bag to go shopping ,throw rubbish in the cansTalking about the environment:We are tryingto save the earth. The river used to be so clean.The air is badly polluted.六.教学反思在本课教学中尽量创设各种情景，鼓励学生大胆地使用英语，对他们在学习过程中的失误和错误采取宽容的态度，学生可以放心大胆去说。这样就为学生提供了自主学习和直接交流的机会，以及充分表现和自我发展的一个空间。鼓励学生通过体验、实践、合作、探索等方式，发展听、说、读、