劉娟

Teaching procedures教學(xué)過程：

Step 1. Warm up

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S： Did you ride your bike？

T： Yes， you are so clever. I like riding very much， because I think its very healthy. Its a very “green” exercise. （PPT展示騎自行車的圖片，接著呈現(xiàn)霧霾圖片）

T： Why should we ride bikes？

S： Because of the PM2.5

Step 2 .Presentation

T： What is the PM 2.5？ In Chinese is 霧霾. Now the PM2.5 is so heavy. Lets watch some pictures carefully and tell me what things you can see in the pictures. （Show some pictures）

S： I can see some animals， theyre in danger.

S2： I can see the sky is dark.

S3： I can see some water， theyre dirty.

S4： I can see the trees； they are cut down by people.

S5： The earth is in danger. Animals are in danger.

T： Yes， and also this （PPT 展示滿地塑料袋塑料瓶的圖片）。

T： So today were going to learn” Protect the earth”.

T： First， Lets listen to the story and answer the question：

What problems are mentioned in the story？

播放Story time的音頻材料。

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教授 oil and coal 的讀音與拼寫（PPT 展示 oil and coal）

______ comes from the trees

T： Now we know water is useful， boys and girls， but why should we protect it and how can we do？

讓學(xué)生再次朗讀課文并找出原因（Why do we save water？）

及方法（How do we save water？）

S1： Water is useful. In many places， there is not much water.

S2： We should reuse and save it.

T： Wonderful， boys and girls. Now lets listen to the tape and read after it.（學(xué)生跟錄音朗讀）

教授第二部分Save energy

T： Now we know water is useful， what about energy？ Please read and choose.

T： Now lets find out why we should save energy and how to save it.

讓學(xué)生朗讀第二部分并畫出原因（Why do we save energy？）及方法（How do we save energy？），讓學(xué)生回答。

S： Because there is not much coal and oil on earth.

S： We should not drive so much because cars use a lot of energy.

T： Yes， so I think we can ride bikes or on foot. Now lets listen to the tape and read after it. （學(xué)生跟讀錄音）

教授第三部分Save trees

T： Now we know water and energy are important， what else？

S： Trees.

T： Yes， now please read by yourselves and then you can check with your partner.

S1： Where does wood come from？

S2： Wood comes from trees. We use wood to make tables， chairs and many other things.

S3： We should not cut down trees.

T： Why should we not cut too many trees？

S4： Because trees help keep the air clean.

T： Perfect， now lets try to fill in the blanks， boys and girls.

comes from trees. We use to make tables， chairs and many other things.

Keys： Wood， wood

We should not ______trees because trees help

Keys： cut down， keep the air clean.

學(xué)生一起朗讀這一部分。

教授第四部分Dont use too much plastic

T： Now boys and girls， wood come from trees. What does plastic come from？

S： The factory makes it.

T： Yes. What do you know anything else about plastic？ You can have a group discussion.

S： I know plastic bags

S2： I know plastic bottles.

S3…

T： Yes， we should not use too much plastic. Now lets read after the tape.（學(xué)生跟讀錄音）

Step 3 . Consolidation.

T： “Protect the earth” speech time is coming； here are the tips.

小組合作，每組選擇文中的一個小主題.（可以借助板書）

Why should we …？

We should/shouldnt...

根據(jù)環(huán)保主題，提出保護(hù)環(huán)境的口號.

T： We should protect the earth because the earth is our mother. We live in the earth together， so we should protect her.

Homework

1.聽磁帶錄音并跟讀五遍。

2.嘗試復(fù)述課文。

3.完成練習(xí)冊上小練習(xí)。