Unit 6 Earth First developing ideas课件(共31张PPT,内镶嵌视频) -外研版(2019)必修第二册

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Unit 6 Earth First developing ideas课件(共31张PPT,内镶嵌视频) -外研版(2019)必修第二册

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(共31张PPT)
Sharp eyes
Sharp eyes: Which one is wrongly spelt
amount
majarity
device
electricity
Sharp eyes: Which one is wrongly spelt
appliance
majority
remove
elctrisity
Sharp eyes: Which one is wrongly spelt
amout
false
leak
electricity
Sharp eyes: Which one is wrongly spelt
majority
mode
remov
amount
Sharp eyes: Which one is wrongly spelt
mode
remove
device
flase
Unit 6 Earth First
---developing ideas
What’s really green
environmentally friendly(环保)
Learning objectives
By the end of this period, you will be able to:
1. get the main idea of the passage and figure out what’s really green in our daily life.
2. understand the meaning and function of the subheading and the structure of the passage.
3. master the logic of causes-effects-measures in the context of a green lifestyle.
4. set up a doubtful attitude towards some common senses to judge them and improve the environmental awareness of green living.
Lead-in: Sherlock Holmes’ challenge
quick prediction
What is the function of the red parts
subheadings/subtitles
main heading/title
expand on: give more information or details(详述)
Pre-reading: Predict
Look at the title, subtitles and pictures. Predict the main idea.
Pre-reading: Predict
A.We should raise the awareness of environmental protection.
B.We must take care of the environment.
C.Not all the “green truths” are really true.
D.The common ideas are false.
Check the prediction
(tip 1: the first and the last paragraph)
It discusses some common ____________ which have been shown to be only________ or even completely__________.
green truths
half true
false
detailed exploration
Do you think they are true half true or false
While-reading: detailed exploration
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.




causes
effects
measures
Paper bags are not good for
the environment.
Turning off a device won't stop it from using power.
Eating local food isn’t always better for the environment.
It is not always better to take a shower than a bath.
Making paper bags uses more______ and _______than making_________. It also produces more ________.
Take a ______ with you when you go shopping.
Devices turned “off ” go into __________but still use power because electricity __________ ______ from the device.
_____________ from its power supply.
Local produce sometimes might have used __________ and produced _____________ than ___________a long way away—even ____________ its transport.
Eat ___________food.
If you spend ________________ _________in a shower, you will use ____________ in a bath---about 50 litres of water.
keep your shower time _____________________.
While-reading: detailed exploration Work in groups to complete the chart.
While-reading: detailed exploration
p
Paper shopping bags are better than plastic ones
FALSE
Making a paper bag uses ___________
and ____ than making plastic bags.
It also produces more __________________
Paper bags are no good for the environment.
greenhouse gases.
more energy
resuable
bag
water
1. Devices turned “off ” go into _____________ and still use power because electricity ______________ from the device.
p
When you turn off a device, it stops using power.
FALSE
Turning off a device won’t stop it from
using power.
______________ from its power supply.
a mode that maintains some functions and is ready to restart at any time(待机模式)
While-reading: detailed exploration
stand-by mode
continues to leak
Remove the plug
p
Eating local food is good for the environment.
HALF TRUE
Local produce might have used __________ and produced______ ______________ than _____________a long way away—even __________________ its transport.
Eating local food isn’t always better for the environment.
Eat ________
___________
While-reading: detailed exploration
more energy
more
greenhouse gases
produce grown
seasonal local food.
taking into account
p
It’s better to take a shower than a bath.
HALF TRUE
If you spend_____
_______________
in a shower, you’ll use ____________
___in a bath ---about 50 litres of water.
It’s not always better to take a shower than a bath.
Keep your shower time
___________
___________.
While-reading: detailed exploration
more
than eight minutes
as much water
as
as short as possible.
Introduction
Body
Conclusion
Green truth 1
Green truth 2
Green truth 3
Green truth 4
4.What’s the structure of the text
Draw the mind map of the structure.
Conclusion
Introduction
Body
green
truth 1
green
truth 2
green
truth 3
green
truth 4
Introduction
green
truth 1
While-reading: detailed exploration
(tip 2: )
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.
doubtful thinking
Reduce(减少) food waste.
Recycle (回收)paper, cardboard, glass, and so on.
Reuse(重复使用) bags while you’re shopping
Reuse
Reduce
Recycle
Post-reading: doubtful thinking
What else can you do to become “greener”
Post-reading: doubtful thinking
Why there are so many question marks in the passage
Set up a doubtful attitude towards
common senses.
Sherlock Holmes’ first task
Goup work: decide if the following “green truth” are true or not
Green Truth 5
Wash as many clothes as possible at a time
saves more water and electricity.
Green Truth 6
Using paper tableware is more environmentally
friendly than using plastic tableware.
Reflection and Revision
Aspects Excellent (√) Good (√) Need to improve
(√)
get the main idea of the passage and figure out what’s really green in our daily life.
understand the meaning and function of the subheading and the structure of the passage.
master the logic of causes-effects-measures in the context of a green lifestyle.
set up a doubtful attitude towards some common senses and improve the environmental awareness of green living.
By the end of the class, I can:
Homework
1. (Compulsory)Give a talk about one of the green truth in the passage.
2. (Compulsory)finish exercise book Unit 6 part3
3.(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

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