(共23张PPT)
Unit 3 The Environment
Reading
In this lesson, we are going to learn about:
3 main environmental problems and their causes;
several solutions to the above problems.
Learning aims
Watch a video about the greenhouse effect, then do the matching work on P34 about it.
the greenhouse effect:
greenhouse gases:
atmosphere:
Before you read
温室效应
温室气体
n. 大气层
Before you read
There is an atmosphere ____________________________.
It controls _________________________________________.
However, we are polluting __________________________.
The gases cause the atmosphere ___________________
___________________________________________________.
5. The Earth is getting _______________________________.
6. We call this ________________________________________.
the greenhouse effect.
the Earth with harmful gases.
warmer and warmer.
to keep in too much heat from the Sun.
around the Earth.
the Earth’s temperature.
Before you read
Before you read
There is an atmosphere ____________________________.
It controls _________________________________________.
However, we are polluting __________________________.
The gases cause the atmosphere ___________________
___________________________________________________.
5. The Earth is getting ________________________________.
6. We call this ________________________________________.
the greenhouse effect.
the Earth with harmful gases.
warmer and warmer.
to keep in too much heat from the Sun.
around the Earth.
the Earth’s temperature.
around the Earth
the Earth’s temperature
the Earth with harmful gases
to keep in too much
heat from the sun
warmer and warmer
the greenhouse effect
Before you read
There is an atmosphere ____________________________.
It controls _________________________________________.
However, we are polluting __________________________.
The gases cause the atmosphere ___________________
___________________________________________________.
5. The Earth is getting ________________________________.
6. We call this ________________________________________.
around the Earth
the Earth’s temperature
the Earth with harmful gases
to keep in too much
heat from the sun
warmer and warmer
the greenhouse effect
The Greenhouse Effect
Reading:
The World is in Danger
Reading Task 1
The world is in danger!
We are facing 3 main environmental problems.
the greenhouse effect
Please SCAN the text quickly and find out the other two problems.
Reading Task 1
The world is in danger!
We are facing 3 main environmental problems.
the greenhouse effect
cutting down forests
Please SCAN the text quickly and find out the other two problems.
people’s bad habits
Reading Task 1
Reading tip:
Make good use of sub-titles
(小标题) in your reading.
Reading Task 2
Please SKIM the text carefully and fill in the blanks.
Reading Task 2
Problems Causes Effects
1 People burn ________ and produce _______. The greenhouse effect.
The Earth’s _____________________.
Sea level ___________________.
Many cities may ____________.
2 People cut down _____________________. The greenhouse effect
______________________________.
2. Animals ___________________.
3. Floods _____________________.
3 People have bad habits. This creates _____________________ and pollutes _____________________.
fuels
CO2
temperature increases
rises
disappear
huge areas of forests
becomes worse
lose their homes
happen more
mountains of rubbish
our land and seas
Writing tip:
You can use this information in your writing about environment.
Reading Task 3
What can we do to protect the environment
We should become ___________________.
We should：
______________________________________________;
_________________________________;
_________________________________.
green consumers
only buy and use products friendly to the environment
recycle as many things as we can
reuse things for old or new purpose
3 R’s of Environment!
It’s high time for us to take action and practice the “3 R’s of Environment” in our daily life!
Reading Task 3
Post-reading:
What else can we do
Post-reading
What else can we do to protect the environment
Post-reading
causes solutions
Post-reading
causes solutions
We should use green energy.
We should plant more trees and take good care of them.
We should develop the habit of saving and reusing things.
solutions
Post-reading
other causes other solutions
Post-reading
We should use public transports when we go out.
We should use energy efficient appliances at home.
We should bring cloth bags when we go shopping.
solutions
other causes other solutions
causes
People use too often.
People use too much .
People use too many .
Thank you for your listening!
We have only one earth.
So, let’s work together and protect this beautiful blue planet!Grade 9 The Environment
Teaching design
Reading class 20 minutes
I Analysis of teaching material This passage focuses on a very important topic: environment protection. It’s an argumentation, which follows “cause-effect” pattern. As for its content, it mainly talks about 3 environmental problems: the greenhouse effect, cutting down too many forests and people’s bad habits which also harm the environment. In the last paragraph, the author puts forward the solution to the problems above, which is to reduce, reuse and recycle. As for its grammar, it uses simple present tense and 3rd person singular in this passage.
II Analysis of students G9 students have certain knowledge in environment protection, and are interested to know more about it in English.
III Learning Objectives In this lesson, students will learn about: 1. 3 main environmental problems and their causes; 2. several solutions to the above problems.
IV Important points: skim for the 3 main causes for environmental problems. Difficult points: find out solutions to the above problems.
V Teaching and learning approaches Task-based teaching approach Audiolingual method
VI Teaching procedures (T=Teacher; Ss=Students)
Task Activity purpose Activity description & Interaction pattern
Step I Leading in - 5mins
Lead in by watching a video. 1.To lead in to the topic and stimulate related knowledge in students’ minds. 1. Ss watch a video about the cause of the greenhouse effect and then finish a task so as to deepen their understanding about the greenhouse effect.
Step II Presentation – 11mins
Reading task 1 3. Reading task 2 4. Reading task 3 To practice the skill of scanning so as to find out key information in the text. 3.To practice the skill of skimming and to increase listening input by listening to the recording of the text. 4. To further practice skimming and to learn the 3 R’s principle in environmental protection. Ss practice the skill of scanning to find out the other 2 environmental problems. Ss skim the text while listening to the recording of it and find out the causes and effects for each environmental problem. In this process, they also learn about the relation of “cause-effect”, which is one of the most widely-used relations and students will deploy later in the production part. Ss skim the last paragraph to find out the solution to the environmental problems, and learn about the 3 R’s principle of environmental protection: reduce, reuse and recycle.
Step III Production 3 mins
5. Solutions to environmental problems. 5. To generate more ideas to protect the environment 5. Ss learn the relation of “cause-effect”, and then practice using the relation to find out solutions. Next, they are supposed to come up with other causes and corresponding solutions.
Step IV Summary 1 min
Summarize Ss summarize what they have learnt in this lesson.
Conclusion Based on New English Curriculum Standard, this lesson is to help students: 1. practice the 2 important reading skills: scan and skim; 2. increase listening input; 3. learn to find out solutions with the help of “cause-effect” relation.
Reflection Environmental protection has always been an important topic for all humans, including teenage students. By reading this text and finishing the learning tasks in this lesson, students not only improve their environmental protection awareness, but also learn to come up with practical solution to solve environmental problems. Besides, they further practice skimming and scanning, which are the two most important reading skills. Therefore, they also improve their reading ability through this lesson.
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