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(共34张PPT)
Unit 3 Trees and us
主题范畴：
人与自然
主题群：
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
understand what trees do for us.
identify amazing facts about trees.
describe what we can do to help protects trees.
explain the relationship between trees and humans.
Unit objectives 单元目标
I can:
New words
branch n. 树枝
root n. 根；根茎
silent adj. 不说话的；沉默的
overlook v. 忽略；未注意到
human n. 人
oxygen n. 氧；氧气
create v. 创造
environment n. 自然环境
convenient adj. 便利的；方便的
furniture n. (可移动的)家具
wood n. 木；木头
treat v. 以……态度对待；以……方式对待
take in 吸收；摄入
greenhouse gas 温室气体
to begin with 首先；第一点
come from 来自
look around 环视；环顾；四下察看
be made of 由……制成
for example 例如；譬如
First thoughts
THINK
What do trees do for us
How amazing are trees
How can we save trees
How do we make use of trees
Section 1 Experiencing and understanding language
Before you read
What do trees do for us
Label the different parts of a tree with the words below.
branch
flower
fruit
leaf
root
trunk
fruit
branch
trunk
toot
flower
leaf
词汇拓展
do sth. for sb. 为某人做某事
provide sb. with sth. (= provide sth. for sb.)
为某人提供某物
What else ...
别的……还有什么？
While-reading
On Tree Planting Day, Yangguang Junior High School posted the following article on its website. Read the article and discover some interesting facts about trees.
Reading strategy
Telling facts from opinions
Facts are true pieces of information about the world. Opinions are people’s personal feelings and beliefs.
They (Trees) take in greenhouse gases like CO, and produce oxygen. (Fact)
They (Trees) are our silent friends, but we often overlook them. (Opinion)

Can you find more examples in the article
Read the second paragraph of the article and answer the following question.
How do trees help creat a clean environment
They take in harmful gases from the air.
They produce oxygen for us to breathe.
4. harmful
adj. 有害的
拓展：be harmful to 对……有害
= do harm to伤害
1. to begin with 首先
2. be good for
对……有益
Word bank
3. take in 吸收
5. help do sth.
帮忙做某事
Read the third paragraph of the article and answer the following question.
What can we get from trees
paper and pencils.
furniture.
fruit and drinks.
4. a lot of 许多
1. such as 例如
2. come from 来自
Word bank
3. look around 环顾
5. be made of 由……制成
6. provide sb. with sth.
提供某人某物=provide sth. for sb.
7. for example 例如
Read the fourth paragraph of the article and answer the following question.
How do human treat trees
We are cutting down forests all around the world.
We are polluting the water and the air.
1. in a kind way
以友善的方式
2. cut down 砍倒
Word bank
3. need to do 需要做
4. save our planet
保护我们的星球
Comprehension
Complete the poster below with the information from the article on page 37.
animal, insects and plants
harmful gases
oxygen
convenient
paper and pencils
is made of wood
delicious fruit and wonderful drinks
Read the article again and try to find examples of facts and opinions in it.
... forests are a safe place for animals, insects and plants to live.
Many of the things around us, such as paper and pencils, come from trees.
Trees makes our lives more convenient.
We need to do more to protect trees and save our planet.
Topic sentences Trees are really ____________ for all living things on Earth. Useful trees Products from trees
Trees in danger Facts Humans are not treating trees ___________________.
What to do We need to _______________ and ________________.
important
in a kind way
protect trees
furniture
fruit and drinks
paper and pencils
The table below tells us some facts about trees. Read it and complete the table.
save our planet
(1) What is the purpose of the article What does the writer want to tell us
(2) How do you understand the sentence “We can’t imagine a world without them (line17)”
(3)What else do trees do for us
Discuss the questions below.
What should we do to save the trees
When you write, you can use both sides of paper.
(当你写东西的时候可以用纸的两面)
Not to use disposable wooden products.
(不用一次性的木制品)
Don’t strip the bark or scribble carving on the trees.
(不剥树皮,不能在树上乱涂乱刻)
Plant more trees and cut less trees. (多植树，少砍树)
To promote the approach of protecting trees.
(宣传保护树木的方法)
Vocabulary practice 1
Look at the article on page 37 and find words with similar meanings.
(1) not making any sound ____________(line2)
(2) a gas we need in order to live ____________(line8)
(3) easy; easy to do ____________(line 11)
(4) a hard material used for making tables, chairs, pencils, etc. ____________(line 14)
(5) to act in a certain way towards someone or something
____________(line 18)
silent
oxygen
convenient
wood
treat
Vocabulary practice 2
Complete the information column on the school website with the words from Exercise 1. Change the form if necessary.
silent
treat
oxygen
convenient
wood
Vocabulary practice 3
Make sentences about what trees do for us with the words and phrases below.
Dictation
n. 树枝
n. 根；根茎
adj. 不说话的；沉默的
v. 忽略；未注意到
n. 人
n. 氧；氧气
v. 创造
n. 自然环境
branch
root
silent
overlook
human
oxygen
create
environment
adj. 便利的；方便的
n. (可移动的)家具
n. 木；木头
v. 以……态度对待；以……方式对待
吸收；摄入
温室气体
首先；第一点
来自
环视；环顾；四下察看
由……制成
例如；譬如
convenient
furniture
wood
treat
take in
greenhouse gas
to begin with
come from
look around
be made of
for example
Notes
Just look around your room ...
look around 环顾
关于look的动词短语：
look at 看；注视；考虑
例句：Look at the blackboard. 看黑板。
look for 寻找
例句：I’m looking for a bike. 我正在寻找一辆自行车。
look after 照顾；照看
例句：Please look after my pet when I am away.
当我离开时，请帮我照看宠物。
look into 向……里看；调查；研究
例句：She looked into the mirror and felt happy.
她向镜子里看了看，感到很开心。
look up 抬头看；查阅；尊敬
例句：The teacher looked up at me but said nothing.
老师抬头看了看我，但什么也没说。
look down on/upon 轻视；看不起
例句：Don’t look down upon other people.
不要瞧不起其他人。
look forward to 期盼；盼望
例句：We all look forward to a long holiday.
我们都期盼有一个长的假期。
look out 当心；小心；留神
例句：Look out! The bridge is broken. 这座桥坏了。
look back 回头看；回顾
例句：He looked back and saw a policeman.
他回头看见一个警察。
请从给定的短语中选择合适的短语来完成下面的句子。每个短语只能使用一次。
look after look into look up
look down on look forward to look out
He decided to ____________ the case (案件) to find out the truth.
Please ____________ my little brother while I’m at work.
We should never _____________ anyone just because they are different.
She always _____________ receiving her grandma’s letters.
I need to _____________ this book to find the answer to the question.
Before crossing the street, you must _____________ for cars.
look into
look after
look down on
look forward to
look up
look out
be made of ……制的 (强调从成品上能看出原材料是什么)
be made from 由……制成的(强调原材料在制成产品后无法再被轻易识别出来)
Translate:
这个风筝是纸做的。
This kite is made of paper.
纸是由木头做的。
The paper is made from wood.
..., a lot of furniture is made of wood.
For example, we can make tea from the leaves of the tea tree.
... such as paper and pencils, come from trees.
such as 例如，像……一样，通常用于列举同类事物中的几个具体实例，其后面不能用逗号。例如：“I like fruits such as apples and bananas.”（我喜欢水果，比如苹果和香蕉。）
for example 例如，比如，用于引入一个或多个具体的例子，以进一步阐释、支持或说明前文所提及的陈述、观点或概念，其后面一般加逗号。例如：For example, if you want to learn a new language, you could start by taking a class or using a language-learning app.（例如，如果你想学习一门新语言，你可以从上课或使用语言学习应用程序开始。）
I have many hobbies. They help me relax and find joy in life, __________ (such as/for example) reading books and watching movies. Reading opens a door to new worlds. __________ (such as/for example), I enjoy reading stories about adventure and fantasy. Watching movies is fun, too. I like comedies __________ (such as/for example) those that make me laugh a lot. These hobbies make me feel happy and fulfilled.
Fill-in-the-Blank
such as
For example
for example
Thank you!

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