Before class: Students learn by themselves.

Step1: Warming up ----Listen to a song.

Step2: Lead-in

1. Show the pictures and talk about the earth.

　　What will the earth be like in ten years?

New words: pollute, environment, planet., earth, in great danger, play a part.

2. What will you do for the earth？

　　I will...

Step 3: Work on Section A 2d.

1. Read the conversation quickly and answer two Qs.

2. Listen and repeat. Then read aloud for 5 minutes to recite.

3. Role--- play the conversation.

4. Make their own conversations.

Step 4 Grammar focus.

1. Show the sentences and think, What are the rules?

仔细观察例句，体会并写出画线部分的时态结构，并翻译时间状语。

2. 【探究总结】

1).含义：表示_______某个时间要发生的动作或存在的状态，也表示将来经常或反复发生的动作。

2).构成：

(1)肯定句：主语+will+_________

(2)否定句：主语+will+___+动词原形

(3)疑问句：___________________+主语+动词原形

3).时间状语：___________, ________week/month/year,

______ the future，______+一段时间等。

3. 仔细观察例句，体会并总结蓝色部分的时态结构，并翻译红色部分。

结构：there will be 意思是___________________________

fewer+__________ less+___________ more+____________

Step 5:Work on 3a.

1.Tell Ss read the conversation in 3a and try to fill in the blanks with more ,less or fewer.

2.Methods

3.check the answers

4.Let Ss read the sentences and try to remember the sentences.

Step 6:Work on 3b:complete the predictions.

1.Let Ss read the beginning of the sentences, understand each sentence.

2.Let Ss complete the sentences.

3.Let Ss share the answers ,and find and correct errors.

4.Let some Ss talk about their sentences.

Step 7 A game.

All of us want to have a good environment. Everyone should play a part in saving the earth. What will you do to protect(保护)it?

Step 8 Summarize and do some exercises.