Unit 2 Topic 3 What can we do to protect the environment? Section D 课件(共24张PPT，内嵌音频) 2023-2024学年英语

(共24张PPT)
Unit 2
Saving the Earth
Topic 3 Section D
学习导航
新知学习
课堂小结
当堂检测
学习目标
重点研讨
新课导入
Enjoy a song named Earth Song
新课导入
What does he want to tell us
He tells us the importance of protecting the earth and calls on us to stop distroying the earth.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
学习目标
1.能熟悉并正确运用本课时的重点单词和短语
2.能进一步巩固复合从句
3.能够谈论森林的重要性
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Forests are the lungs of the earth.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Remove carbon dioxide from the air
Make oxygen
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Cut down
Build houses
新知学习
课堂小结
当堂检测
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重点研讨
Recycling can protect the environment, ______ it can save money, too.
Some things we have done are good for the earth ______ some are bad.
We should do everything to protect it, _____ we’ll be punished and lose our home.
people produce power from coal, ______ it is very dirty and causes acid rain.
Compound Sentence
Grammar
and
while
but
or
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Would you like to be a __________ person
First, you ought to _________ the electricity when you leave a room.
________ said than done.
Actions speak _________ than words.
The train can ________ a top speed of 431 km per hour.
greener
shut off
Easier
louder
reach
Functions
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Read the passage and answer the questions on Page 50.
Forests are the lungs of the earth. Without them, it cannot breathe. It needs its forests to remove carbon dioxide from the air and to make oxygen. In many countries, such as New Zealand, Canada, and Brazil, forests were cut down to provide wood to build houses. Many young volunteers around the world are working in their holidays to plant new trees to replace them.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
These young men and women face many difficulties when they plant new trees. The weather may be very hot and dry or it may be very cold and wet. There are often many insects that bite these planters on their legs, arms, and faces while they work. They carry heavy bags of small trees, and working in the mountains can be dangerous.
Tree planters are changing the world. They plant different types of trees so that birds and animals can live in the forests. Even though tree planting is very difficult, they love their work. They believe that in 50 years their little trees will become beautiful forests.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
1.How do you understand “Forests are the lungs of the earth”
2. What difficulties do tree planters face when they plant trees
Forests can remove carbon dioxide from the air and make oxygen.
(1)The weather may be very hot and dry or it may be very cold and wet.
(2)There are often many insects that bite these planters on their legs, arms, and faces while they work.
(3)They carry heavy bags of small trees, and working in the mountains can be dangerous.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
3.Why do they plant different kinds of trees
4.What will happen if we do not plant new forests
5.Would you like to be a tree planter when you are older Why or
why not
They plant different types of trees so that birds and animals can
live in the forests.
If we don’t plant new trees, the forests will become smaller and smaller. Without trees, the wind and the water will take the earth away, and the oxygen in the air will become less and less.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Project
Finding a Greenest Person
1. Answer the following questions to see how green you are.
1) Do you recycle newpapers or cans
A. Often.(2) B. Seldom(1) C. Never.(0)
2) What do you usually take
A. A bath.(0) B. A shower.(2)
3) When you have a short journey, how do you usually go there
A. Walk or ride a bike.(3) B. Go by car.(0) C. Go by bus.(2)
4) What do you usually do when you see others littering
A. Stop them.(2) B. Pick the litter up.(1) C. Do nothing.(0)
新知学习
课堂小结
当堂检测
学习目标
重点研讨
5) How often do you use paper towels
A. Ofen.(0) B. Seldom(1) C. Never.(2)
6) How often do you eat fast food
A. Ofen.(0) B. Seldom(1) C. Never.(2)
7) What type of bags do you use for shopping
A. Baskets or cloth bags.(3) B. Reused plastics bags.(1)
C. New plastics bags.(0)
8) How often do you turn off the lights when you leave a room
A. Nearly always.(2) B. Seldom.(1) C. Never.(0)
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Scores: 0—4 You have not started turning green yet!
5—9 You are pale green.
10—13 You are medium green. Try harder.
14—15 You are bright green, but do not stop trying.
2. Give your points for your answers. What is your total
Compare your result with your group members' and tell the
class who is the greenest in your group and give reasons.
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Key points
1. They plant different types of trees so that birds and animals can
live in the forests。
他们种植了不同种类的树，因此小鸟和动物们能够居住在森林里。
so that 此处引导目的状语从句，意为“目的是，为的是”，可换成 in order that。
eg:
They climbed higher so that they might see farther.
他们爬得更高，以便看得更远。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
2. You have not started turning green yet!
你还没有开始成为绿色使者。
green 不单纯指“绿色”，也可借这种颜色用来指代保护环境的人。
eg:
You are pale green. 你刚刚成为绿色卫士。
You are medium green. 你是中级绿色卫士。
You are bright green. 你优秀的绿色卫士。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
3. Your are bright green,but do not stop trying.
你是个优秀的绿色使者，但是不要停止努力。
①stop doing sth. 停止正在做的事；
eg:
When the teacher came in, the students stopped talking and laughing.
当老师走进来，学生们停止了说笑。
②stop to do sth. 停下来（正在做的事）做另一件事；
eg:
He stopped to talk with her. 他停下来和她讲话。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Grammar
Compound Sentence (并列句/复合句)
一、并列句的概念：
并列句是由并列连词and, but, or, for, so等把两个或两个以上互不依从，但意思紧密联系的简单句连在一起而构成的句子。
其结构为：简单句+并列连词+简单句。
新知学习
课堂小结
当堂检测
学习目标
重点研讨
作 用 主 要 连 词
并 列 连 词 表并列关系
表选择关系
表转折关系
表因果关系
and (和，而且), both…and,
not only…but also (不但……而且)，
as well as (也，和……一样)
neither…nor (即不……也不……)等
or (或者；否则)，
either…or (要么……要么……)等
but (但是)， however (然而，可是)，
while (而，着重表对照关系)
not...but (不是……而是……)等
for (由于)， so (因此)等
新知学习
课堂小结
当堂检测
学习目标
重点研讨
Unit 2
Topic 3 Section D
进一步掌握复合从句
谈论森林的重要性
新知学习
课堂小结
当堂检测
学习目标
重点研讨
replace
根据句意及汉语提示写出正确的单词。
1. Nothing can ________(代替) a mother's love.
2. You'd better ________(弄干) the coat before you wear it, or
you may catch a cold.
3. The big stone is in front of the car. Let's ________(移开) it
from the street.
4. Don't be afraid. My dog won't _______(咬) you.
dry
remove
bite