外研版（2019）必修第二册Unit6 Earth firstDevelopingideas课件PPT（共25张）

(共25张PPT)
Leading-in
Here are some questions about
“green living” in activity one.
Choose the answers you agree with.
1 Which shopping bag is more environmentally
friendly
A plastic bag.
A paper bag.
Neither of these.
2 What should you do to save energy
Turn o 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.
4 Which uses less water
Taking a bath.
Taking a shower.
It depends.
Skimming
Read the subheadings in the passage and
decide if they are true or false.
Paper shopping bags are b
F
F
etter than plastic ones.
When you turn o a device,
it stops using power.
Eating local food is good
for the environment.
It depends.
It depends.
It’s better to take a
shower than a bath.
Skimming
What’s the main idea of the passage
“green truths”
It discusses some common ______________
half true
or even completely _____________.
which have been shown to be ____________
false
“Green”
color word
inexperienced
ecological （生态
的）
Scanning
Read the e ects and complete the
causes.
cause
s
effect
s
Making paper bags uses
more energy and water than
making plastic bags.
Paper bags are not good for
the environment.
Turning o a device won’t
stop it from using power.
Eating local food isn’t always
better for the environment.
It’s not always better to
take a shower than a bath.
water than
making a
plastic bag.
Paper bags
are not good
for the
take a
environment.
reusable bag
with you
when you
going
Devices
turned o go
into stand-by
mode and still
use power.
Turning o a
device won’t
stop it from
using power.
Remove the
plug from its
power
supply.
local produce someti
mes might use more
energy and produce
more greenhouse ga
ses than produce gr
own a long way awa
y-even taking into a
ccount its transport.
Eating local
food isn’t
always
analyze the
situation and
make right
decisions
better for
the
If you spend mo
re than eight mi
nutes in a show
er, you'll use as
much water as i
n a bath--about
50 litres of wate
r.
It’s not always
better to take
a shower than
a bath.
keep your
shower time
as short as
possible.
Presentation
Please give a talk about one of the
“green truths” in the passage.
Some people think.... because....
However, it's not completely true because...
Therefore/Thus, we should...
Discussion
What can we do to become “greener”
To be greener
Use your own bags instead of a plastic bag.
save water and energy.
unplug the device when you are not using it.
Use public transport.
pick up trash plogging.
recycle your trash.
start gardening.
reuse bottles.
Use alternative energy ,such as solar energy...
Group work
Design a poster to call on people to
protect our earth.
Showing time
Describe your poster and call on people
to protect our earth.
Assignment
Write a short passage on the topic
of “ What can you do to become
greener ” using some transitional
words.