3. (让学生讨论，唤起保护动物的意识。)

　 T: Some animals are in danger, and their numbers are getting smaller and smaller. What should we do to protect them? Discuss in groups.

　 (2分钟后回答。)

　 S₁:We should plant more trees.

　 S₂:We should keep the water clean.

　 S₃:We shouldn’t kill them.

　 (最后教师补充。)

Step 4　 Practice 第四步 　练习(时间:10分钟)

2. (让学生根据关键词复述课文。)

　 T: Please retell the text according to the key words.

　 (2分钟后找几位学生复述。)

1. (让学生听1录音，写出关键词。)

　 T: Listen to the tape and write down the key words.

　 (板书)

3. (再读一遍短文，回答短文后的问题。)

　 T:　 Now read this passage again, then answer the questions below.

(核对答案。)

Step 3　 Consolidation 第三步 　巩固(时间:10分钟)

2. (让学生读短文1，回答问题。)

T: Pandas, blue whales and Chinese tigers are all wild animals. Their numbers are getting smaller and smaller. They are in danger. Why are they in danger? Read 1 on Page 83 and answer it.

(板书)

(核对答案。)

Ss: Pandas have less and less land to live on. Blue whales don’t have enough clear water and humans kill them, too. Chinese tigers are killed by people for their fur and bones.

Step 1　 Review 第一步 　复习(时间:10分钟)

　(通过对话，复习本话题中的重要句型。)

　 T: Hello! S₁, do you like the countryside or the city?

　 S₁:I like the countryside.

　 T: Why?

　 S₁:　　　 Because the air is fresher, the sky is bluer and there are also greener trees and clearer rivers.

　　 S₁:　　　 Hello! S₂, do you like the countryside or the city?

　　 S₂:　　　 …

　 (学生用接龙形式操练此句型。)

　 T: Most of us like the countryside better. Do you like plants or animals in the countryside?

　 S₂:I like the animals.

T: Which kind of animals do you like best?

S₂:I like dogs best.

T: Why do you think so?

S₂:Because they are more friendly than other animals.

(教师示范后，找两组学生进行表演。)

T: From your talking, I know some students like animals better, some students like plants better. Now who can tell us something about rainforests? S₃, please.

S₃:Rainforests cover 6% of the earth’s surface, …

(学生分组复述，教师评出优胜组并表扬。)

T: We know the rainforests are very important to us. In fact, water is also important to us. Please tell us the importance of water, S₄.

S₄:Water is very important to all living things. All animals can’t live at all without water. Water makes up the largest part of the human body, but water is becoming dirtier and dirtier, so we must save every drop of water.

Step 2　 Presentation 第二步 　呈现(时间:10分钟)

1. (教师出示熊猫、蓝鲸、华南虎的图片。引出生词，导入新课。)

T:　 Well done! I have some pictures here. Can you name these animals?

Ss: Yes, they are pandas, tigers and …

T:　 Good, they are pandas, blue whales and Chinese tigers.

(板书)

T: (出示熊猫的图片。)Where do pandas live?

Ss:They live in the forests and mountains.

T: Right, they live in the forests and mountains of Southwest China.

(板书)

　 T: What do pandas feed on?

　 Ss:They feed on bamboo.(帮助学生回答。)

(板书)

　 T: Their number is getting smaller and smaller. Do you know why?

　 Ss:Because they have less and less land to live on.

　 T: Good. They have less and less land to live on.

(板书)

T:　 (出示蓝鲸的图片。)Are blue whales the largest animal in the world?

Ss:　　　　 Yes, they are.

　 T:　 Where do they live?

　 Ss:　　　 They live in the ocean.

　 T:　 What do they feed on?

　 Ss:　　　 They feed on the smallest sea animals.

　 T:　 (出示华南虎的图片。)Where do the Chinese tigers live?

　 Ss:They live in the south of China.(帮助学生回答。)

　 (板书)

　 T:　 Their number is getting smaller and smaller, too. Because people kill lots of them. Why do people kill them?

　 Ss:　　　 They kill them for money.

　 T:　 Right. People kill them for their fur and bones.

　 (板书)

　 T: Pandas, blue whales and Chinese tigers are all wild animals. Can you name other wild animals?(教师可以引导并帮助学生回答。)

Ss:Yes, monkeys, bears, wolves.

　 (板书)

　 T: Which do you like best, blue whales, pandas or Chinese tigers?

　 Ss:I like the panda best.

　 T: Why do you think so?

　 Ss:Because it’s the most lovely animal of the three.

录音机/图片/多媒体/小黑板

4. Love and protect animals and our world.

3. Review how to describe animals and plants.

2. Review comparative and superlative degrees of adjectives:

(1)They have less and less land to live on.

(2)Their number is getting smaller and smaller.

(3)They are the oldest type of tigers living in the world.