Lesson 47 Connected to Nature 教学设计

Lesson 47 Connected to Nature
教学目标：
1.懂得运用本课重点单词或短语:die,dead,start out,think about,live off,die off
2.懂得一些介绍保护自然、保护动物的句型:All living things need food and water to grow.We are different in some ways,but all living things are connected.We should respect the earth and all the living things on it.
3.进一步掌握代词it的用法。
重点难点：
1.正确掌握与保护自然有关的词:need,connect,depend,protect,balance
2.掌握更多关于保护自然、保护动物的句式。
3.掌握和运用以下重点句式: The natural world is filled with living things.They can help you grow big and strong.We all live on the same planet,and we depend on each other.If the birds eat the sick or dead fish,they may die off.
教学思路：
本课时的教学内容是冀教版八年级下册英语第八单元的第五课时,主要涉及介绍保护自然、保护动物的重要性。在授课之前先让学生通过调查上网掌握大自然以及动植物的一些情况。课上可以通过让学生小组合作的形式进行相互交流;同时,教师通过幻灯片、图片、照片等向学生展示一些大自然、动植物的现状,并让学生用英语简单进行介绍。掌握自然和动物,保护自然和动物,保护我们的地球我们的家园。
教学准备：
设计教学PPT,录音机,多媒体,图片和单词卡片。
教学过程：
StepⅠ.Lead in
Leading in 【情景1】
Show some pictures about the earth.Then discuss the following questions:
T:Hello,boys and girls.What do you know about the earth?
S1:It’s our home.
S2:It’s the only planet to live.
T:If there is no rain for a long time,what will happen?
S3:Dry.
S4:No water to drink.
T:What do you think cause it?
S5:Human destroyed it.
T:What should we do to protect the environment?
Discuss the questions in groups.Ask the students to talk for three minutes.Then let them present their talk in class.
[设计意图]　利用学生学过的内容,从询问对地球的掌握开始,轻松进入语境,进而介绍生词,图片的使用使学习更加形象直观,自然地进入谈论保护自然的新话题。
Leading in 【情景2】
Greet the class.
T:Hello! Boys and girls!
Ss:Hello! Mr./Ms.XX.
Ask the students to introduce the earth in class.
S1:It’s great.
S2:It’s our home.
Show the new words and show the picture of the earth to the students.
T:What should you do to protect the environment?
S3:Save water.
S4:Sort and reuse garbage.
S5:Plant more trees.
…
[设计意图]　运用学生所学的知识,从谈论熟悉的入手进入新内容的学习,运用实物或图片帮助学生学习生词,直观、感性、形象。
StepⅡ.Presentation
If some students feel the passage is too long,the teacher can divide it into two or three parts.Then ask them to read them in groups.After a while,ask them to read one by one.
(1)Living things start out weak and small and slowly grow strong and big.
(2)If we pollute the rivers and oceans,fish may get sick or even die.
(3)Nature is a balance between all the living things on the planet.
(4)We are different in some ways,but all living things are connected.
(5)We should respect the earth and all the living things on it.
Please pay attention to the long words:different,connected.
[设计意图]　小组合作训练阅读,利用多媒体,展示一些关于地球、环境的图片,创设情景,使同学们身临其境,激发说的欲望。在练习中巩固本课需要掌握的句型。
StepⅢ.Listening
T:Listen to the tape with your book closed and fill in the blanks.
1.Each of us is a 　　　　.?
2.All living things need 　　　　to grow.?
3.Nature is a 　　　　between all the living things.?
【Keys】　1.living thing　2.food and water　3.balance
[设计意图]　加深同学们对课文的掌握,学生们带着问题有目的地倾听,容易把握内容完成填空。
StepⅣ.Post-listening Activities
After listening to the passage,get the class to read it aloud.
Ss read aloud.Then practice the conversations.Focus on the stressed words,pronunciation and intonation.
[设计意图]　学生训练听力之后,朗读巩固,训练学生的语音语调;再模仿对话,编出自己的对话,培养学生运用目标语言进行交际的能力。
StepⅤ.Reading
1.Read the text and decide whether the statements are true or false.
(1)Flowers, grass and trees are all living things. (　　)
(2)We needn’t drink water when we are thirsty. (　　)
(3)If one species dies off, then another may die. (　　)
2.Then ask some volunteers to read the passage.
3.Read the text again and do the exercises in No.1 and No.3 in Let’s Do It!
【Keys】　1.(1)T　(2)F　(3)T　3.No.1.3,4,1,2　No.3.BDAC
☆教材解读☆
1.Living things start out weak and small and slowly grow strong and big.?
start out意思是“最初”,同义词组为start off。
KFC started out/off as a small store.
肯德基最初是一个小店铺。
【拓展】　 start out还可意为“出发”。
He started out at 6 o’clock this morning.
他今天早晨六点出发。
2.If we pollute the rivers and oceans,fish may get sick or even die.?
句中get sick意思是“生病”,get 在这是系动词,意思是“变得”,后面一般接形容词或者动词的过去分词。
The weather gets hot.天气变热了。
Get dressed quickly.快点穿衣服。
【拓展】　get的其他用法:
(1)get表示“得到”。
We can get good education today.
现在我们能够得到良好的教育。
(2)get表示“理解”。
I have got you.我明白你的意思。
(3)get“到达”,是不及物动词,接地点用to,接地点副词时,省略to。
He got to Shanghai last night.
他昨晚到达了上海。
(4)get 还可以作使役动词,意思是“使……”。
She always gets her mother to cook delicious food.她总是让她妈妈给她做好吃的。
3.Nature is a balance between all the living things on the planet.?
句中between是介词,意思是“在……之间”,可以构成词组“between…and…”,意思是“在……和……之间”,强调两者之间,比如说两个人、两件事、两个地点之间等等。
My home is between a bank and a supermarket.我家在一个银行和一个超市之间。
【辨析】　between,among
(1)between(介词)表示两者之间或者三者以上的两两之间。
There are many trees between buildings.
在建筑物之间有许多树木。
(2)among(介词)表示三者或者三者以上的之中。
English is the easiest to learn among all the languages.在所有语言中,英语是最容易学的。
[设计意图]　学生通过阅读课文,掌握重点内容,并且通过判断正误来巩固对课文的理解和掌握;朗读课文并做课后练习题1、3,掌握课文重点内容。
StepⅥ.Complete Let’s Do It!
Ask the students to read the passage again and finish No.1 and No.2.
[设计意图]　Let’s Do It! 部分中的No.1重点是阅读教学,以习题的形式,既巩固了课文,又训练了做题能力;No.2利用做题的方式,考查学生对课文重点单词的掌握。
StepⅦ.Task
GROUP WORK:Let’s Do It! No.3
Ask some students to come to the front of the classroom in groups and finish No.3.
[设计意图]　No.3的重点是阅读训练,同学们通过小组合作来完成。继续以环保为主题,进行阅读练习。课文已经给出了一些句子,提供了一个语境完整、内容丰富的话题,自然呈现本单元的核心句型,为学生进一步掌握课文做了巩固。小组合作形式,训练学生的合作意识,小组之间的竞争,激发学生的积极性。
StepⅧ.Exercises
T:Now,look at the sentences with some missing words.Please use proper words to fill them.
1.He has been　　　　(死亡)for two years.?
2.She can　　　　(跟上) me.?
3.We all should 　　　　(尊重)our teachers.?
4.He　　　　(生病) yesterday.?
5.We all 　　　　(依靠)each other.?
【Keys】　1.dead　2.follow　3.respect　4.got sick　5.depend on
[设计意图]　以学评教、强化落实。当堂检测主要是由本节内容组成的形成性评价,利用已知的信息,让学生补充,让他们得到充分的训练。
StepⅨ.Homework
1.Practice the passage with your group members after class.
2.Copy the new words twice.
[设计意图]　口头练习和单词记忆相结合,复习、归纳,注重语言知识的操练与积累。
Lesson 47　Connected to Nature
die,dead
start out,think about,live off,die off
All living things need food and water to grow.
We are different in some ways,but all living things are connected.
We should respect the earth and all the living things on it.
The natural world is filled with living things.
They can help you grow big and strong.
We all live on the same planet,and we depend on each other.
If the birds eat the sick or dead fish,they may die off.
教材习题解答
【Lesson 47】
1　3　4　1　2
2　1.dead　2.respect　3.follow　4.connected　5.died
3　B　D　A　C