2018届九年级英语全册Unit13We’retryingtosavetheearth第4课时教案.docx

Unit 13 Were trying to save the earth!Section B 1a1e一、【教材分析】教学目标知识目标1. 学习并掌握下列词汇：recycle, napkin2. 学习并正确使用以下常用表达：stop doing sth., Its hard to do sth.3. 学习并会用下列句型：（1）Turn off the lights when you leave a room.（2）Turn off the shower while you are washing your hair.（3）Recycling paper is really easy. I agree. But its hard to stop riding in cars.（4）We really shouldnt use paper napkins, you know.I know. I stopped using them last year.能力目标会用所学的知识谈论如何保护地球。情感目标了解环境污染的坏处，树立环保意识。教学重点用所学的词汇和句型谈论如何保护地球。教学难点用所学的词汇和句型谈论如何保护地球。教学方法情境教学法；任务型教学法 二、【教学流程】环节师生活动二次备课I. 复习热身1、检查生词预习。（1）先通过PPT呈现本课的单词，教师领读，学生跟读，并帮助学生正音。（2）做题巩固。根据句意和首字母提示写出所缺的单词。We really shouldnt use paper n_.We should r_ books and paper.Please t_ your own bags when shopping.Turn o_ the lights when you leave a room.Saving e_ animals is one thing we can do for our world.答案：napkinsrecycletakeoffendangered 2、自由交谈。朗读并记忆下列优美句子。Were trying to save the earth.The river used to be so clean.It was considered the nicest river in town.The air has become really polluted.We should help save the sharks. .感知体验感知1.PPT展示下列图片，创设语境：What should we do to save the planet?体验1.学生分组谈论如何保护地球。Recycle books and paper.Turn off the lights when you leave a room.Turn off the shower while you are washing your hair.强化巩固1. 处理教材1a的内容。What can we do to help save the planet? Rank these items from the easiest (1) to the most difficult (5)._stop riding in cars_recycle books and paper_turn off the lights when you leave a room_turn off the shower while you are washing your hair_dont use paper napkins答案：Answers will vary.2.处理教材1b的内容。Compare your answers in 1a with your partner.A: Recycling paper is really easy.B: I agree. But its hard to stop riding in a car.3.处理教材1c的内容。答案：checked: turning off the shower, taking your own bags when shopping, not riding a bike.4.处理教材1d的内容。答案：Doing now-turning off the light Will do-taking your own bags when shoppingNever do-turn off the shower; not riding in cars, riding a bike5.处理教材1e的内容。Make a conversation using the information from the chart above. Say what is true for you.A: We really shouldnt use paper napkins, you know. B: I know. I stopped using them last year.A: People are cutting down too many trees. What should we do? B: We should tell them the importance of planting trees and plant more trees.6.语言知识点的归纳整理。（1）关于turn的短语turn on打开，发动. Would you please turn the TV on? turn off 关闭 关掉. Could you please turn off the light? turn up 开大（一般情况下指调节音量大小，灯光明暗，或煤气大小等）；出现。Turn the radio up please, I cant hear it clearly.；turn up还表示“出现”。We settled to meet at 7:30 at the cinema, but he didnt turn up.turn down 关小；调低；拒绝。So we have to turn down the other a little bit.;turn down 还表示“拒绝”。How can you turn down such a poor little girl.take turns依次，轮流。Lets take turns fill the bottles with water. turn back折回；往回走。Suddenly, he turned back running to me.turn out生产；驱逐；翻转；结果是。 It didnt exactly turn out as I planned.结局并不是我计划的那样。（2）It is + adj.(for sb.)+to do sth. Its hard to stop riding in cars. Its difficult for parents with young children to use public transportation.（3）stop to do sth. 与stop doing sth.的区别stop doing sth是“停止做某事”，doing是stop 的宾语，是要停止的动作。 The two girls stopped talking when they saw me. 那两个女孩一见到我就停止了讲话。stop to do sth 是“停下来开始做某事”，to do是stop的状语，表示目的，是要开始做的事情。The two girls stopped to talk to me when they saw me. 这两个女孩一看到我就停下来和我讲话。.实践应用分小组讨论如何保护环境，保护我们的地球。A: People are cutting down too many trees. What should we do? B: We should tell them the importance of planting trees and plant more trees.A: We really shouldnt use paper napkins, you know. B: I know. I stopped using them last year.总结反馈1.结合板书和课件，让学生盘点所学词汇和句型。词汇：recycle, napkin stop doing sth., Its hard to do sth.句型：（1）Turn off the lights when you leave a room.（2）Turn off the shower while you are washing your hair.（3）Recycling paper is really easy. I agree. But its hard to stop riding in cars.（4）We really shouldnt use paper napkins, you know.I know. I stopped using them last year.2. 当堂练习。用所给单词的适当形式填空。 （1）What else can we do _ (help) save the planet?（2）_ (recycle) paper is really easy.（3）Its hard to stop_ (ride) in cars.（4）We really shouldnt _ (use) paper napkins, you know.（5）I _ (stop) using them last year.答案：（1）to help （2）Recycling（3）riding（4）use（5）stopped.作业布置 1. Remember the new words of 1a-1e.2. Finish off the exercises.3. Preview the new words of 2a-2e.三、【板书设计】Unit 13 Were trying to save the earth!Section B 1a1e（1）Turn off the lights when you leave a room.（