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教学重点：Talking about why the people must save the nature.
教学难点：Expressing and writing about how to save our nature
教具：Multi-media
教学法：Listening ,Speaking ,Reading ,Discussion
板书设计：
Lesson 47 Connected to Nature
live off 依赖、依靠
depend on 开始、起初
start out 充满、装满
be filled with 相继死去
die off 以------为生
species connect respect ant dove bee
教学过程：
Step 1 Lead - in
Look at the pictures and talk about:
Which place do they want to live?
Is the nature important to us?
Do we need to protect the nature ? why?
Step 2 Autonomous learning
1.Look at the pictures and help the students learn the new words.
2.Talk about what are damaging the nature with the pictures.
3.Express how we can save our nature
4:Listen and answer the following questions:
. Is the nature world filled with living things?
. What do all the living things need to grow?
Step 3 Cooperative learning
1: Fast reading.
Read the text and find out the topic sentences in each paragraph and then put the sentences in the correct order.
( ) All living things are connected.
( ) We should respect the earth and all the living things on it.