Unit 8 We shouldn’t waste water 第一课时教学设计

Unit8 第1课时教学设计
一、教学目标
(一) 语言目标
1. 词汇：能听懂、会说、认读新单同shouldn’t, waste, blouse, enough, world, save, drop, fresh.
2. 句型：能用“We should ...”告知他人应该做什么；能用“ We shouldn’t ...”告知他人不应该做什么；能用“ What are you doing?”询问他人在做什么并回答。21教育网
(二) 应用目标
1. 说出环保的几种方式，如 keep the rivers clean, keep the air clean and fresh, plant more trees, use bikes instead of cars.21*cnjy*com
2. 了解破坏环境的行为，如 waste water, keep the water running, litter, kill the wild animals。
3. 能听懂、会说A部分的对话。
二、教学重、难点
1. 重点：能听懂、会说、认读新单词shouldn’t, waste, blouse, enough, world, save, drop, fresh；能听懂、会说词组 keep the rivers clean, keep the air clean and fresh, plant more trees, use bikes instead of cars。【21cnj*y.co*m】
2. 难点：理解、记忆B部分同组；every drop of water的发音。
三、教学准备
单词卡片、课本图片、课文录音等(有条件的学校可利用幻灯片、多媒体课件) 。
四、教学过程
Step 1 热身/复习(Warm-up/Revision)
1. Greetings
2. Look and say
教师呈现几幅风景图片，引导学生说用图片中看到的内容，复习课文中学过的单词，感受大自然的美丽。
Step 2 新课呈现(Presentation)
1. New words and new sentences
(1) 教学单词world
T: There are so many beautiful things in the world. What a wonderful world! (板书 world，带读单词) What else are there in the world?【21·世纪·教育·网】
S1: There is/are ... in the world.
(在there be句型中操练新单词world，为课文中“ There isn’t enough water in the world.”做铺垫。)【21教育名师】
(2) 教学句型“We should ...”和核心词汇keep the rivers clean, keep the air clean and fresh, plant more trees, use bikes instead of cars。21cnjy.com
教师给出图片和语言支架，帮助学生看图说出句子。
T: We love our world. What should we do for the things in the world?【21教育】
① There are clean rivers in the world.
We should keep the rivers clean.
② There is the air in the world.
We should keep the air clean and fresh.
③ There are trees in the world.
We should plant more trees.
④ There are many cars in the world.
We should use bikes instead of cars.
(预测：教师板书以上短语进行教授时，instead of较难理解，instead of表示“代替”，教师可配合连贯的肢体语言进行解释。) 21*教*育*名*师
(3) 教学句型 “We shouldn’t” 和核心词汇kill the wild animals, I waste water, litter。
教师用课件呈现猎杀动物、乱扔垃圾、浪费水源的图片，给出语言支架 “There isn’t/aren’t enough______. We shouldn’t______.”帮助学生谈论图片。21-cnjy*com
T: We shouldn’t do these things.
(板书 shouldn’t = should not，教学生发音。)
T: Can you talk about these pictures?
① There aren’t enough wild animals in the world.
We shouldn’t kill the wild animals.
② We shouldn’t litter.
③ There isn’t enough water in the world.
We shouldn’t waste water/keep the water running.
T: Yes, we should save every drop of water.
(板书drop of,结合第六单元学习量词的方式帮助学生理解。)
a drop of water a few drops of water
(预测：新短语较多，教师在教授以上短语时，注意引导学生用自然拼读法记忆新单词。)
(4) 创设情境
教师用课件呈现一件新的blouse,引导学生用who, whose, how, what等疑问同造句，对blouse提问。21·世纪*教育网
T: It’s a dirty blouse. (板书blouse,认读新词)
Can you ask some questions about this blouse?
Teaching Tips ：
学生在学习A部分前能围绕故事中的blouse设疑，可以带着问题有效地阅读文本。
2. The dialogue
第一步：Listen and choose
不打开书，听音，听音前给出问题：Whose blouse is this?
第二步：Listen and underline
打开书，听音，画出含有shouldn’t的句子。
第二步：Read and judge
快速阅读，判断下列句子的对错。
(1) Lily is in the bedroom.
(2) Lily is washing her new blouse.
(3) We should keep the water running.
(4) Everyone needs water.
(5) There is enough water in the world.
第四步：Listen and repeat
听音，跟读。注意单词间的连读现象，如every drop of water等。引导学生正确模仿，提醒学生注意模仿语调，同时模仿读出Mum和Lily的不同语气。21世纪教育网
第五步：Read and act
学生分组、分角色朗读对话。?
Step 3 趣味操练(Practice)
1. Game: Should & Shouldn’t
教师按照should和shouldn’t将新单词的图片分别贴在黑板的两边，全班分为两大组，一组同学说“We should...”的句子，另一组同学说“We shouldn’t ...”的句子。每说出一个句子，该组得到对应图片一张，两组轮流说，说错不能得到图片，不能重复说已经说过并得到图片的句子。计时三分钟，获得图片最多的一组获胜。21·cn·jy·com
教师可适当总结，告诉学生要善待地球，保护环境。
2. 情境创设：选择一个情境，小组表演对话。
情境一：你和朋友去公园玩，看到低年级的同学向公园的湖里扔垃圾，你和朋友上前劝说。
如：S1: Today is Sunday. Let’s go to the park together.www.21-cn-jy.com
S2: Good idea!
S1: Look, what a beautiful lake!
S2: Cool! What is that kid doing over there?
S1: Stop! We should keep the lake clean and beautiful.www-2-1-cnjy-com
S2: We shouldn’t litter. We shouldn’t throw things into the lake. 2-1-c-n-j-y
S3: I’m sorry.
S1: We must save this nice park.
S2: Let’s play together
S3: OK!
情节二：爸爸上班很近，但是每天开车去上班，你劝爸爸少开车，保护空气。如：S1: I’m going to work now.
S2: Wait, Dari. Can you go to work on foot?
S1: Why?
S2: It’s just 7:30 a. m. You can go to work on foot. We should walk instead of driving cars.
S1: I see. You are right. We should keep the air clean and fresh. OK, I’m going to work on foot today.2·1·c·n·j·y
Step 4 作业布置(Homework)
1. 听一听，读一读：听磁带，朗读课文A部分。
2. 记一记：听写第八单元新单同。
3. 查一查：了解更多有关环保的信息。