资源简介

(共21张PPT)
Unit 3 Trees and us
主题范畴：
人与自然
主题群：
自然生态；环境保护
子主题：
热爱与敬畏自然，与自然和谐共生
Key question
Why do we need trees
New words and phrases
P43
1. product / pr d kt/
2. side /sa d/
3. borrow / b r /
4. call on
*5. bloom
n. 产品；制品
n. 一面
v. 借；借用
号召；动员；要求
n. 鲜花盛开
（打*为课外拓展或已学词汇）
Warming Up
Enjoy a short video below and find out what do we do for trees.
We have been chopped down nearly half of world’s trees since we live on Earth.
Human are cutting down 15 billion trees each year.
deforestation: cutting down too many trees / forests
So, we should try to save them!
While-learning
Speaking
Trees are important to us.
Talk in groups about how we can save trees.
Look at the example and use the list below to help you.
Talking about ways of saving trees
P43
P43
P43
We can reuse paper.
再次利用
Look at the pictures and talk about the method to save trees.
We should find ways to use less paper. For example, we can reuse paper — we should write or print on both sides. Besides, we can borrow books from the library or share books with friends and classmates. ...
双面打印
We can tell others why trees are important.
Look at the pictures and talk about the method to save trees.
hold a publicity campaign
宣传活动
We can call on people to stop cutting down trees.
Look at the pictures and talk about the method to save trees.
号召
We can buy environmentally-friendly product.
环保的
Look at the pictures and talk about the method to save trees.
use other forest-friendly material instead of wood to make furniture.
Look at the pictures and talk about the method to save trees.
We can plant more trees.
take part in the planting activities.
For example: In order to save trees, we can plant more of them. Trees Planting Day is a good chance for us.
How to save trees
Listen and repeat. Pay attention to the letters in blue.
Can you give more examples
P43
Listen and repeat. Pay attention to the letters in blue.
Can you give more examples
P43
New Phrases
做某事的方法 ____________________
呼吁某人做某事 ____________________
砍伐；砍倒 ____________________
再次使用 ____________________
双面打印 ____________________
ways of doing something
call on sb. to do sth.
cut down
reuse
print on both sides
re- 表示“再；又”
Post-learning
stop doing sth.
停下正在做的事情
stop doing sth.
表示“停下正在做的事情”
stop to do sth.
例句：
1. If we don’t ___________(停止说话), the teacher might be angry.
2. Let’ s ___________(停下来去吃午饭) lunch first.
stop talking
表示“停下正在做的事情，去做另外一件事”
stop to have
except, except for, besides
1. except 意为“除……之外”，除去的部分不包括在整体范围内。例如：
The office is open every day except Sunday.
除了星期日，这件办公室每天都开放。（星期日不开放）
2. except for 意为“除……之外”，除去的部分与主语不是同类事物。例如：
The composition is very good except for some mistakes.
除一些错误外，这篇作文很好。（错误和作文不同类）
3. besides 意为“除……之外（还）”，除去的部分包括在整体范围内。例如：
I have a few good friends besides you.
除你之外，我还有几个好朋友。（你也是我的好朋友）
练一练
It was dark in the city __________ a few week lights.
Everyone is here __________ Xiao Wang and me.
I want to learn one more foreign language __________ English.
except for
except
besides
Thank you!

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