Unit 8 Lesson 43 Let's Clean Up! 教案

英语（冀教版） 八年级下
UNIT8 Save Our World
Lesson 43 Let’s Clean Up!. 教学设计
一、教材背景分析
本单元的中心话题是“保护环境、拯救我们的世界”。通过介绍和讲述不同的环保知识，学生们可以了解到中西方学生在环保方面的差异，增加对环境保护认识和兴趣。本单元围绕如何减少能源消耗（reduce)，重新利用资源(reuse)以及循环利用资源(recycle)三个词的定义，告诉我们如何做一名绿色环保者，提倡我们关心环保并且尽量做到节能。
二、学情背景分析
对于八年级的学生来说，环保是一个很熟悉的话题。整合教材，对教材内容进行适当的删减、调序和补充。每个课时有一个主题，活动均围绕这个主题展开，使学生在从易到难不知不觉中，学到知识，运用到生活当中。激发了学生的兴趣，学生便会主动学习，学有所获。
三、教学目标分析
（一）知识技能
1. 识记单词短语：
attention, rubbish, pollution, explain, garbage,
clean up, draw one’s attention, pick up, a bit of.
2. 运用所学短语进行造句练习。
（二）语言技能
听：能根据课文提供的环境污染及环保的图片，听懂与此相关的短文，并从中判断与图片相符合的话题。
说：能用英语讨论一些环境问题。
读：能根据标题推测出文章可能包含的内容；读懂阅读文章，理解语篇主旨和细节。
写：围绕保护环境、拯救我们的世界这一主旨，挑选某个环境问题，如水污染、空气污染、浪费、乱砍乱伐等，写出自己的见解，如其现状，我们可能作些什么等等。
（三）情感态度
认识到保护环境，拯救世界的重要性；只有我们每个人都从身边小事做起，作到减少浪费，最大限度利用所有物品及循环利用资源，无论何时何地都想着环保和节能，拯救地球才有希望。
四、教学重难点
１、教学重点：
（１）正确记忆，运用单词和词组。
（２）正确理解reduce、 reuse、 recycle　的含义，并用英语表达出来。
２、教学难点 :
（１）正确运用词组：clean up, draw one’s attention, pick up, a bit of。
（２）用英语表达自己对环境污染的态度与建议。
五、教法分析
教学方法：问答法，讨论法，任务教学法，情景交际法。
教学手段：多媒体，道具。
六、学习策略
自主学习：结合个人情况，预习教材，找出自己的不懂之处。在网站或书籍中查找某方面污染的信息，为小组讨论做准备。
合作学习：对话，有具体的语言环境和特定情景模式，便于学生的理解，交流和学习。同时给出具体的学习任务，让学生分组讨论，研究，最后展示讨论结果---小组合作探究式学习。
七、教学步骤
Step 1: Greeting.
Step 2: Lead in. ( 导入设计)
Show a video about environment and ask the students some questions.
Step 3: Show the title and learning aims.
Step 4: New words.(词汇教学 )
First, teach the students how to read the words, and then let the students read in groups as quickly as possible in three minutes. Then check the students.
Step 5: Make the students listen to the tape carefully and do exercises. (文本教学---听力 )
1, Where are they talking
（ ） In the market . （ ） In the schoolyard .
2, What are they talking about
（ ） Picking up garbage . （ ） Playing soccer
3, What is the class project about
（ ） Environment . （ ） Pollution .
Step 6: Students read the text for several minutes and do exercises. (文本教学---阅读) Read the lesson and write true (T) or false (F).
1.Jenny, Brain and Danny are going to do something on World Environment Day .( )
2. They are studying geography this week.( )
3. They are going to pick up the garbage on the street.( )
4. Jenny found Danny’s homework.( )
Step 7: Cooperation Study( 合作探究 ).
Let the students talk about the phrases. Think about how to make sentences by using the phrases. Then show the sentences that the students make.
探究一：学习并总结归纳pick up的用法区别,举例说明.
探究二：学习并总结归纳draw one’s attention的用法，适度拓展，举例说明.
探究三：学习，理解词组a bit of 的用法，举例说明.
Step 8: Work in groups. ( 展示评价 )
Each World Environment Day has a theme. Can you think of your own theme for it Discuss them in group and present your slogan, logo and passage to the class.
Step 9: Do exercises. ( 当堂检测 )
一，选择题。
1. When he saw a wallet on the ground, he ____ at once.
A. picked it up B. gave it up C. picked up it
2. The workers _____the ground after the people left.
A. clean up B. cleaned up C. cleaning up D. cleans up
3. You had better explain your plans _________ us.
A. on B. to C. in D. off
4. There’s ________ rubbish in our schoolyard.
A. lots of B. too many C. many D. quite a few
5. –Can you finish ___ these books before 10 o’clock
-- Yes, I can.
A. to read B. read C. reads D. reading
二. 根据汉语完成句子。
1. 在他回家的路上，一个奇怪的人引起了他的注意。
On his way home, a strange man __________ _________ ___________.
2. 你能帮我捡起钢笔吗？
Could you help me ___________ ________ the pen
3. 她总是在离开前把房间收拾干净。
She always __________ ___________ the room before leaving.
4. 比尔同意帮助我学英语了。
Bill agreed _________ __________ me with my English.
5. 他让我们不要乱丢废纸。
He asked us ___ ______ ______ waste paper.
Step 10: Homework ( 课后作业 )
Write a composition with “ World Environment Day and Me ”.
level A : at least 70 words
level B : at least 60 words
level C : at least 50 words
Step 11: Blackboard design.( 板书设计 )
words: attention, rubbish, pollution, explain, garbage,
phrases: clean up, draw one’s attention, pick up, a bit of.
Emotion aims: Giving suggestions on World Environment Day .
八、教学时间分配 (共45分钟)
Step 1: Greeting. 1分钟
Step 2: Lead in. 1分钟
Step 3: Show the title and learning aims. 1分钟
Step 4: New words. 5分钟
Step 5: Make the students listen to the tape carefully and do exercises. 5分钟
Step 6: Students read the text for several minutes and do exercises. 10分钟
Step 7: Cooperation Study. 5分钟
Step 8: Work in groups. 5分钟
Step 9: Do exercises. 10分钟
Step 10: Homework . 2分钟
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