外研版（2019）必修第二册Unit 6 Earth First Developing ideas What's really green？课件(共22张PPT)

(共22张PPT)
What’s really green
Learning objectives
By the end of this period, you will be able to:
1. Get the main idea and have a general knowledge of what’s really green in our daily life
2. Understand the meaning and function of the subheading and the structure of the passage
3. Understand the logic of causes-effects-measures in the context of a green lifestyle
4. Hold a doubtful attitude towards some common sense
Q1 What’s the meaning of “green” in this title
A. color
B. peace
C. environmental friendly
Activity 1 Lead in
√
Q2 How much do you know about “green living”
1. Which shopping bag is more environmentally friendly
□ A plastic bag.
□ A paper bag.
□ Neither of these.
Activity 1 Lead in
2. What should you do to save energy when leaving your home
□ Turn off a device.
□ Unplug a device.
□ Neither of these.
3. What food is better for the environment
□ Food produced near to where you live.
□ Food produced far from where you live.
□ It depends.
Activity 1 Lead in
Q2 How much do you know about “green living”
4. Which uses less water
□ Taking a bath.
□ Taking a shower.
□ It depends.
You can’t give a definite answer because different things are possible in different situations.
“视情况而定”
What is the function of the red parts
subheadings/subtitles
main heading/title
expand on: give more information or details
Activity 2 Predict
Look at the title, subtitles and pictures. Predict the main idea of this passage.
Activity 2 Predict
Read the passage and check the prediction.
Activity 3 Read for the prediction
It discusses some common _________ which have been shown to be only________ or even completely__________
green truths
false
half true
(the 1st and the last paragraph)
Q1 How many parts can you divide the passage into
Activity 4 Read for the structure
Q2 What’s the main idea of each parts
Q1 How many parts can you divide the passage into
Activity 4 Read for the structure
Q2 What’s the main idea of each parts
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Introduction
green
truth 1
Q1 Do you think they are true half true or completely false
Activity 5 Read for the details
Paper shopping bags are better than plastic ones.
When you turn off a device, it stops using power.
Eating local food is good for the environment.
It’s better to take a shower than a bath.
？
Completely FALSE
Completely FALSE
HALF TRUE
HALF TRUE
？
？
？
Common sense:
Ideas that most people believe is right.
Q2 Why do you think these common senses are not true (reasons)
Q3 According to the reasons, what conclusions can you draw (results)
Activity 5 Read for the details (GW)
Reasons
Results
p
Paper shopping bags are better than plastic ones
Completely FALSE
Making a paper bag uses more energy and water.
It also produces more greenhouse gases.
Paper bags are not good for the environment.
Devices turned “off ” go into stand-by mode and still use power.
Electricity continues to leak from the device.
p
When you turn off a device, it stops using power.
Completely FALSE
Activity 5 Read for the details (GW)
Turning off a device won’t stop it from using power.
Remove the plug from its power supply.
a mode that maintains some functions and is ready to restart at any time
p
Eating local food is good for the environment.
HALF TRUE
Activity 5 Read for the details (GW)
It is the production of food, not its transport, that uses most of the energy and produces most of the greenhouse gases.
Eating local food isn’t always better for the environment.
Eat seasonal local food.
p
It’s better to take a shower than a bath.
HALF TRUE
Activity 5 Read for the details (GW)
If you spend more than eight minutes in a shower, you’ll use as much water as in a bath.
It’s not always better to take a shower than a bath.
Keep your shower time as short as possible.
√
√
√
√
Activity 6 Think and share
Activity 6 Think and share
“3Rs”
Q1 What else can you do to become a “greener”
Reuse
Reduce
Recycle
what you need
what you have/consume
what you can’t reduce or reuse
Activity 6 Think and share
Q2 Why there are so many question marks in the passage
Doubtful attitude
Activity 7 Reflection
Aspects Excellent (√) Good (√) Need to improve
(√)
Get the main idea and have a general knowledge of what’s really green in our daily life
Understand the meaning and function of the subheading and the structure of the passage
Understand the logic of causes-effects-measures in the context of a green lifestyle
Hold a doubtful attitude towards some common sense
By the end of the class, I can:
Activity 8 Homework
1. (Compulsory)Give a talk about one of the green truth in the passage.
2. (Optional) Surf the internet and find another FALSE green truth.
You need to consider:
Which “green truth” are you going to talk about
Why do people think it is “green truth”
What is really truth
What can you do to become a greener
Useful expressions:
Some people think that...
However, it is (not completely) true because...
Therefore, we should/had better/are supposed to...
Thanks