Unit 7 Protect the earth第2课时教学设计-译林版小学英语六年级上册

Unit 7 Protect the earth第2课时教学设计
Teaching contents 教学内容
Grammar time & Culture time
Teaching aims and learning objectives 教学目标
1、能正确运用use…to…句型表达某物的用途。

2、能正确使用should，should not去给他人提出建议或意见。

3、能理解culture time的内容，并适当拓展环保知识。

Focus on the lesson and predicted area of difficulty教学重点和难点
教学重点：
1、两种句型的综合运用
2、能理解culture time的内容，并适当拓展
教学难点：
综合运用所学句型和词汇，去表达自己的环保理念。

Teaching procedure教学过程
Step 1. Lead in
T: (指着封面人物奥巴马)Do you know this man?
S: 奥巴马
T: Yes, and he is the person of 2012. [PPT出示2012年度风云人物]You know every year, Time chooses the person of the year. [PPT出示更多年度风云人物，并标明年份]
T: Do you want to be the person of the year one day？
S: Yes.
T: I hope so. I will tell you a secrete. My mother has been the person of 1988.
Do you want to have a look at my mother?
T: [PPT出示封面危机中的地球]Look, that is my mother.
T: And she is our mother. She’s …
S: The Earth.
Step 2.Presentation
1review
T: [出现真实版的地球图片]what are mentioned in the story?
S: save water save energy save trees don’t use too much plastic
T: great!
T: now, can you choose a topic and say a few sentences about it? S: we should reuse and save water. We should not waste water.
S:most of our energy comes from coal and oil. We should energy. T: good job!
2Crammer time(1)
T: look ! what’s this?
T：[PPT出现下列物品：(wood)，(water)，(oil)、plastic coal Ss: Wood, water, coal, oil, coal, oil…
T: which can clean things?
S: water can clean things.
T: which can make bags and bottles?
S: plastic can make bags and bottles.
T: which can make tables ,chairs and may other things?
S: wood can make tables…
.[呈现三个句子]
T: let’s read the sentences together.
S: read together
[出示一个表格]
T: what can you find er om the table?
S: use… to do …
T: Good.（板书use…to...）
T:let’s have a brainstorm.
We can use wood to …
Ss: discuss in pairs
T: look, there are three other things. Please work in 4 and discuss their uses. S: （来不及说，应该会说得比较乱）
T: You need more time, I think. One minute for you, discuss in groups.
Ss: We use water to clean things.
We use plastic to make bags.
We use water to brush teeth…
T: you are so great!
T:[PPT上出现水和一张椅子]
Boys and girls. Look! How can we skip from water to sit?
Let me show you .
We use water to plant trees. Wood comes from trees. We use wood to make chairs. We use chairs to sit. Do you get it?
Ss: yes!
T: look at the blackboard. Here are three pictures. Work in pairs and choose one.
Ss: discuss in pairs.
Ss:
We use…
We use plastic bags to go shopping.
T: good job! We all know plastic is very useful when we go shopping. But do you know too much plastic is bad for our earth? (观看一些塑料垃圾的图片)
T: we know some about the earth. Do you want to know more about it? Let’s enjoy a video.
3Crammer time(2)
T :What should we do?
Ss: we should…
We should…
T: yes, you are right ! so we should love and protect our earth!
Miss Jiang wants to do a survey.
T: We should reuse water.
We should…
We should do our best, can you?
T: [PPT上出现一张表格]
T: what can you find from the table?
Ss: should shouldn’t 后面跟动词原形
T: excellent!
T: let’s have a pair work. There are 4 pictures. Choose one and discuss.
(用should , shouldn’t)
Ss: discuss in pairs
Ss : we should…
We should not…
T: well done! Now we know a lot about our earth. I have a question. Do you know any festivals about the earth?
T: let’s learn.
4 Culture time
T: We should do a lot to protect the earth, but many people don’t know that. So we give two holidays to the earth. They are ….
T: [PPT出示earth day和environment day]教学environment
T: When’s earth day?
S: It’s on the 22nd of April.
T: When is environment day?
S: It’s on the 30th of June.
T: But remember every day should be the earth day. Everyday should be the environment day. We should save these things every day. （师手指着板书上的东西）
5 summary
（师继续手指着板书上的东西）Look at these things. They are very useful. We use them to do a lot of things. But there are not too many recourse on
Earth. That’s “why” we should save them every day.
[PPT出示…is/are useful. We use…to …和why]
To save them, there are a lot of things we should do or we should not do. That’s “how” to save them.
[PPT出示should/ should not和how]
T: Today, we talked about why to protect the earth and how to do. Can you say something about it? Let’s try together. The sentences on the screen and the mind map on the blackboard may help you.Let’s try together.
Ss: Water is useful. We use water to drink and clean things. We should not waste water. We should reuse water and save it.
Energy is useful. We use energy to drive cars. We should not drive too much cars. We should take the bus/metro.
….
T: （在引导学生转述的时候，老师加上why和how之间衔接的话：There is not much water in many places. Most energy comes from oil and coal. There is not much coal or oil on Earth. But trees help keep the air clean. But too much plastic is bad for the Earth，生只需要描述use..to…和should, should not的部分）
6 Make a proposal
T：Good. You know a lot about protecting the earth now. But some people around don’t know. Maybe some teachers here, they don’t know. This time, let’s make a proposal to tell them.
T: How to make a proposal. Look at this one. This is a proposal about saving water. First, we should talk about why to save? Then how to save. Don’t forget your name. Choose one to finish.
T: If you have finished, you can share it with your classmates, but don’t speak loudly.
T: Who wants to show us your proposal?
7结尾
T：Good, you’ve did a good job. I hope one day our mother will be on the planet of the year again, but at that time, it will be happy earth. OK, let’s try our best!
8 Homework
T: So today’s homework. First, try to find some other ways to protect the Earth and make a mind map about it. Like this（指着板书）
T: Finish a new proposal according to your mind map. Like this. (这着这张纸)。