资源简介

(共47张PPT)
Unit 3
Section 1 Reading
2024年牛津版
英语（七年级下）
Trees and us
课堂教学目的
1
2
新课导入
3
Content
课堂活动
5
课堂训练
6
课堂小结
4
课堂重难点
课堂教学目的
1
2
课堂重难点
1.能掌握理解文章出现的生词和短语。
2.获取有关上海旅游的主要信息，包括主要景点以及参观须知等。
3.通过阅读篇章能够分清事实描述和观点描述。
文化意识
课堂重难点
思维品质
课堂教学目的
深入理解课文内容，能用事实和观点来描述树木的重要性。
增强热爱自然、保护资源的意识。
文章提供了讨论环境保护的机会，教育学生认识到树木对于维持生态平衡的重要性。这有助于培养学生的全球公民意识和对自然环境的尊重。
Trees are our friends.
Trees are important in our daily life.
In this Unit we are going to talk about man’s another friend: trees
新课导入
3
Trees are so important.
But how much do you know about them
Can you say out the parts of the tree
branches
roots
leaves(leaf)
stem/trunk
growth rings
What do trees do for us
Trees provide us with fruit.
=Trees provide fruit for us.
=We can get fruit from trees.
Fruit, furniture
We can also use trees to make many things such as: chopsticks, furniture, paper and so on.
What do trees do for us
Leaves provide shade for
people. They can keep us cool.
Leaves
We can also get oil and tea from some special trees.
What do trees do for us
They are major fighters against air pollution.
Leaves
They help fight against air pollution.
Most importantly, they can make the air fresh and clean.
How do they fight against air pollution
Leaves can change harmful gas into oxygen, so they can make
the air fresh and clean.
co2
O2
take in
give out
produce oxygen for us to breathe
Trees can make the world more beautiful and green.
What do trees do for us
Branches provide home for animals such as birds.
branches
Branches are home to animals such as birds.
Trees make our lives more convenient.
wood
chopsticks
paper
pencils
furniture
Before you read
课堂活动
4
What do trees do for us
Think
branch flower fruit leaf root trunk
1 Label the different parts of a tree with the words below.
fruit
branch
trunk
root
flower
leaf
What do trees do for us
They provide us with different fruits.
What else do trees do for us
They also take in greenhouse gases like CO2....
2 Talk in pairs about what trees do for us.
What do trees do for us
We can also use trees to make many things such as: chopsticks, furniture, paper and so on.
What do trees do for us
They help fight against air pollution.
On Tree Planting Day, Yongguang Junior High School posted the following article on its website. Read the article and discover some interesting facts about trees.
Our Silent Friends
From the deepest forests to our towns and cities, trees are all around us. We share our world with trees. They are our silent friends, but we often overlook them.
In fact, trees are very important for all living things on earth. To begin with, forests are a safe place for animals, insects, and plants to live. Trees are also good for us humans because they take in greenhouse gases like carbon dioxide and produce oxygen. This means they help create a clean environment for everyone on this planet.
Trees make our lives more convenient. Many of the
things around us, such as paper and pencils, come from trees. Just look around your room. A lot of the furniture is made of wood. Trees also provide us with delicious fruit and wonderful drinks. For example, we can make tea from the leaves of the tea tree.
Trees do so much for us. We can't imagine a world without them.
However, humans are not treating trees in a kind way. We are cutting down forests all around the world. We are polluting the water and the air, and this harms trees. All these things are a big problem.
We need to do more to protect trees and save our planet.
1.四周； 到处
2.生物
3.与某人分享某事
4.首先
5.对…有益
6.吸收
7.帮助做某事
8.一个洁净的环境
9.让我们 的生活更方便
10.来自
11.为。。。提供
12.由…制成
13.沏茶
14.以友善的方式
15.砍倒
16.挽救我们的星球
all around
living things
share sth. with sb
to begin with
be good for
take in
help do sth.
a clean environment
make our lives more convenient
come from
provide … with …
be made of
make tea
in a kind way
cut down
save our planet
阅读在课文画出词组
Telling facts from opinions
Facts are true pieces of information about the world. Opinions arc people's personal feelings and beliefs.
They (Trees) take in greenhouse gases like CO： and produce oxygen. (Fact) They (Trees) are our silent friends, hut we often overlook them. (Opinion)
Can you find more examples in the article
事实是关于世界的真实信息，观点是个人的感受和信念。
They （Trees） take in greenhouse gases like CO2 and produce oxygen.
树木吸收二氧化碳等温室气体并 且生产氧气。（事实）
They （Trees） are our silent friends, but we often overlook them.
树木是我们无声的朋友，但是我们经常忽视 它们。（观点）
你能在文章中发现更多的例子吗？
Facts
... they take in greenhouse gases like
CO2 and produce oxygen.
Many of the things around us, such as paper and pencils, come from trees.
For example, we can make tea from
the leaves of the tea tree.
We are cutting down forests all
around the world.
We are polluting the water and the
air, and this harms trees.
Opinions
They are our silent friends, but we often
overlook them.
In fact, trees are very important for all
living things on Earth.
... forests are a safe place for animals,
insects and plants to live.
Trees make our lives more convenient.
We can't imagine a world without them.
However, humans are not treating trees
in a kind way.
We need to do more to protect trees and
save our planet.
1.Trees can take in carbon dioxide and produce oxygen. ( )
2.We can imagine a world without trees. ( )
3.We are not cutting down forests all around the world. ( )
4.There is no safe place for animals in forests. ( )
5.Humans are doing a great job protecting trees. ( )
6.We should do more to protect trees. ( )
7.We have enough forests all around the world. ( )
T
F
T
F
F
F
F
阅读判断正误
Reading comprehension
1 Complete the poster below with the information from the article on page 37.
What do trees do for us
Trees are very important for all living things on Earth.
Forests are home to ⑴____________________.
Trees take in ⑵_____________________and produce(3)___________
Trees also make our lives ⑷_______________.
Things like(5)________________come from trees.
A lot of the furniture in our homes ⑹________________.
We get(7)_______________________________from trees (e.g. tea).
animals, insects and plants
greenhouse gases like CO2,
oxygen
more convenient
paper and pencils
is made of wood
delicious fruit and wonderful drinks
3 Discuss the questions below.
(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 (line 17)”
The purpose of the article is to call on people to protect trees.
The writer wants to tell us that trees are very important for the earth and humans and we need to protect them.
It means that trees are extremely important to us. Without trees, the world would face many serious problems and we can't imagine what such a world would be like.
(3) What else do trees do for us
Trees can prevent soil erosion and hold the soil in place. They can also provide shade for people. （答案不唯一，合理即可）
Vocabulary practice
1 Look at the article on page 37 and find words with similar meanings.
(1) not making any sound _______(line 2)
(2) a gas we need in order to live _______(line 8)
(3) easy; easy to do ________(line 11)
(4) a hard material used for making tables, chairs, pencils, etc.
__________(line14)
(5) to act in a certain way towards someone or something
___________(line 18)
silent
oxygen
convenient
wood
treat
2 Complete the information column on the school website with the words from Exercise 1. Change the form if necessary.
Today is Tree Planting Day, and we are going to focus on the many benefits of trees!
We do not often think about the trees around us. They are ⑴_______:
they don't complain, no matter how we ⑵______them. However,
trees are very important for all living things on this planet, so we should be kind to them.
To begin with, they provide us with(3)_________and clean the air for
us. Trees also make our daily lives easier and more ⑷_________. For
example, we use the(5)________from trees to make furniture. We also use it to produce paper
In short, we cannot live without trees.
silent
treat
oxygen
convenient
wood
3 Make sentences about what trees do for us with the words and expressions below.
convenient, drink ,environment, fruit ,produce oxygen ,take in greenhouse gases, wood, be made of, Trees provide us with ...
1. Trees make our life convenient.
树木让我们的生活便利。
2.We drink water from the rivers that are protected by trees.
我们饮用由树木保护的河流里的水。
2.Trees are very important for the environment.
树木对环境非常重要。
3.Many trees bear fruit for us to eat.许多树结出果实供我们食用。
5.Trees produce oxygen which is essential for our survival.
树木产生对我们生存至关重要的氧气。
6.Trees take in greenhouse gases and help to slow down global warming.
树木吸收温室气体并有助于减缓全球变暖。
7.Wood from trees can be used to make many things.
树木的木材可以用来制作很多东西。
8.Some furniture is made of wood from trees.
一些家具是由树木的木材制成的。
9.Trees provide us with shade in summer.
树木在夏天为我们提供树荫。
Adjective suffixes: -ful, -less
We can add -ful to the end of some nouns to make adjectives. It is a suffix meaning "full of” To have the opposite meaning, we can add Jess, use—useful—useless
harm -harmful - harmless
Can you give more examples of making adjectives this way
更多示例：
care ：careful（细心的）， careless（粗心的）
help ：helpful（有帮助的）， helpless（无助的）
hope ：hopeful（有希望的）， hopeless（无望的）
fear ：fearful（害怕的）， fearless（无畏的）
pain ：painful（痛苦的）， painless（无痛的）
power ：powerful（强大的）， powerless（无力的）
meaning ：meaningful（有意义的），meaningless（无意义的）
1.They are our silent friends, but we often overlook them.
他们是我们沉默的朋友，但我们经常忽视他们。
Language points
“silent” 作为形容词， “沉默的；寂静的；无声的”。例句：
She remained silent throughout the meeting.她在整个会议中保持沉默。
The night was silent and still.夜晚寂静无声。
“silent” 的同根词有 “silence”名词，沉默；寂静。例句：
His silence suggested that he was angry.他的沉默表明他生气了。
She broke the silence by speaking first.她首先开口打破了沉默。
overlook用作及物动词，意为“忽视；不理会”等
He seems to have overlooked one important fact.
他好像忽略了一个重要的事实。
We may have overlooked some details.
我们可能忽略掉了一些细节。
He overlooked a spelling mistake on the first page.
他没有注意到第一页上的一处拼写错误。
2.Trees are also good for us humans because they take in greenhouse gases like carbon dioxide and produce oxygen.
树木对我们人类也有好处，因为它们吸收二氧化碳等温室气体并产生氧气。
（1)be good for对… 有益，对…很好
（2) take in 吸收
Trees take in carbon dioxide. 树木吸收二氧化碳。
(3) Produce 产生；生产 【同根词】
（1）product n. 产品；结果；作品
（2）production n. 生产；产量
（3）producer n. 生产商;制作人
3.This means they help create a clean environment for everyone on this planet.
这意味着它们有助于为这个星球上的每个人创造一个清洁的环境。
“create” 作为动词， “创造；创建；造成”。例句：
The artist created a beautiful painting. 这位艺术家创作了一幅美丽的画。
Scientists hope to create a better world.科学家们希望创造一个更美好的世界。
The new law will create many problems.新法律会造成许多问题。
“create” 的同根词有 “creation” 名词，创造；创作；产物。例句：
The creation of this work took him several years.
这部作品的创作花了他好几年时间。
Her creation shows great talent.她的创作展现出了极大的才华。
“creative”（形容词，创造性的；有创造力的）。例句：
We need more creative ideas.我们需要更多有创意的想法。
The project encourages creative thinking.这个项目鼓励创造性思维。
4.A lot of the furniture is made of wood. Trees also provide us with delicious fruit and wonderful drinks.
许多家具是木制的。树木也为我们提供了美味的水果和美味的饮料。
① furniture n.家具
为不可数名词，可用a piece of, an article of以及some, much来修饰。
我们的家具不多。
We don't have much furniture.
床、椅子、桌子和书桌都是家具。
Beds, chairs, tables and desks are furniture.
② be made of 意为“由……制成”。
如：我的课桌是木制的。
My desk is made of wood
注意区别：
be made of 从产品中能看出原材料 be made from 从产品中看不出原材料
这座小桥是石头砌成的。The small bridge is made of stones.
葡萄酒是由葡萄制成的。Wine is made from grapes.
③ provide sb. with sth. = provide sth. for sb.为某人提供某物
Sheep provide us with wool.= Sheep provide wool for us.
绵羊为我们提供羊毛。
根据中文意思完成句子。
政府为村民们提供法律服务。
The government _______ the villagers ______legal service.
= The government _______ legal service ______the villagers.
provides with
provides for
③ provide sb. with sth. = provide sth. for sb.为某人提供某物
Sheep provide us with wool.= Sheep provide wool for us.
绵羊为我们提供羊毛。
根据中文意思完成句子。
政府为村民们提供法律服务。
The government _______ the villagers ______legal service.
= The government _______ legal service ______the villagers.
provides with
provides for
5.We can't imagine a world without them.
However, humans are not treating trees in a kind way.
我们无法想象一个没有树的世界。然而，人类并没有善待树木。
“imagine” 作为动词，表“想象；设想；料想”。
I can't imagine life without music.我无法想象没有音乐的生活。
Imagine you are in a beautiful garden.设想你在一个美丽的花园里。
imagine + doing sth.，
Can you imagine living alone 你能想象独自生活吗？
“imagine” 的同根词有 imagination 名词，想象力；想象；幻想。例句：
His imagination is very rich.他的想象力非常丰富。
The story shows the power of imagination.这个故事展示了想象力的力量。
“treat” 常见的用法如下：
1.作动词，意为 “对待；看待”：常用于 “treat sb. /sth. + 方式状语” 结构。例如：We should treat others with kindness. 我们应该友善地对待他人。
2.作动词，意为 “治疗”：其常用搭配为 “treat sb. for + 疾病” 。例如：The doctor is treating the patient for a heart disease.
医生正在治疗这个病人的心脏病。
3.作动词，意为 “请客；款待”：常见用法有 “treat sb. to sth.”，表示 “请某人吃 / 喝某物”。
如：I'll treat you to an ice - cream.我请你吃冰淇淋。
4.作名词，意为 “款待；乐事”：例如：
It's a great treat for me to go to the concert.
去听音乐会对我来说是一件乐事。
6. for example 例如
for example 与 such as 的区别
1) for example “例如” +句子、段落, 用来举例说明某一论点或情况,一般只举同类人或物中的“一个”为例, 可位于句首、句中或句末。
2) such as “例如”+单词、词组或动词ing，用来列举事物时,一般列举同类人或事物中的几个例子。插在被列举的事物与前面的名词之间,as后面不可有逗号。
如：We got a lot of things from trees. For example, rubber is from rubber trees.
我们从树上得到了很多东西。例如，橡胶来自于橡胶树。
China has many big cities, such as Bejing, Shanghai, Guangzhou.
中国有许多大城市，例如北京、上海、广州。
课堂小结
5
1.We have read an article about trees on its website.
2. We have grasped the new words and expressions in the reading.
课堂训练
6
一、根据首字母写单词
1.Trees produce o________ which is important for our survival.
2.Trees p__________ us with shade in summer.
3.The room was s__________ as everyone listened carefully.
4.She t_________ her pets like family members.
5.Don't o__________ this problem, it's very important.
6.This new app makes it c_________ for us to order food online.
7.We can c_________ a beautiful painting with different colors.
8.We should protect our e____________.
9.This factory p___________ a lot of cars every year.
10.Can you i__________ how excited I was when I got the news
produces
imagine
oxygen
provide
silent
treats
overlook
convenient
create
environment
二、用词的适当形式填空
1.Although the situation looks _________ now, we should remain ________ and never give up.（hope）
2.This broken pen is _________, while that smart phone is extremely _______for our work and study. (use)
3. You should be______ when doing the experiment, and operate ________ to avoid mistakes.( care)
4. She imagined ________(meet) her favorite singer one day.
5. The project encourages_________( create) thinking.
6. The _________(create) of this new software has changed the way we work.
7. The_________ promised to increase the _________ output this year. (produce)
8. They sat in _________, watching the beautiful sunset. (silent)
9. Good food makes you__________(health) .
10. Bad air can _________ the environment and is ________to the health of living creatures.( harm)
silence
healthier /healthy)
harm harmful
hopeless hopeful
useless useful
careful carefully
meeting
creative
creation
producer produce
三、完成句子
1.树木对我们人类有好处，因为它们吸收CO2等温室气体并产生O2
Trees_____ ____ _______ us humans because they ____ _______greenhouse gases like CO2 and produce O2.
2.树木在夏天为我们提供树荫。
Trees ______us ________shade in summer.
3.人类正没有善待树木。
Humans are not treating trees______ ______ ______ _______.
4.智能家居设备使我们的生活更方便、更舒适。
Smart home devices make our lives _____ _______ ________ __________
are good for take in
provide with
in a kind way
more convenient and comfortable
5. 这条裙子是由丝绸制成的，而葡萄酒是由葡萄制成的。
This dress is ______ ______silk and the wine is _____ ________ grapes.
6.首先，我想和大家分享我对这个新项目的兴奋。
______ ______ ________, I want to ________my excitement _______ you about this new project.
7.中国有许多大城市，例如北京、上海、广州
China has many big cities, _______ ________ Beijing, Shanghai, Guangzhou.
8.我们必须保护森林，阻止人们砍伐过多的树木。
We must _______the forest and prevent people from ______ ________ many trees.
made of made from
To begin with, share with
such as
protect cutting down

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