Unit 6 Earth first Developing ideas课件（共31张，内嵌视频）-2024-2025学年高中英语外研版（2019）必修第二册

(共31张PPT)
What's really green
B2 U6 Earth first
Developing ideas
Learning objectives
By the end of the class, you will be able to
1. get the main idea, the structure and detailed information by skimming and scanning;
2. analyze the passage using the pattern "causes-effects-measures";
3. raise environmental awareness and take “green actions” in daily life.
What do these pictures have in common
Lead-in
Green
grass
trees
leaves
forests
green lifestyle
Brainstorm
nature
Lead-in
Quiz time!
How much do you know about a green lifestyle
Look & Predict
What is the passage mainly about
Read & Understand
Read the subheadings quickly and get the main idea.
It discusses some common ______________ .
green truths
Read& Understand
What is the type of the passage
exposition
What's really green
argumentation
Read& Understand
Read & Understand
What is the function of subheadings
Expand on the main heading
Slightly longer than the main heading
Give the reader an overall understanding of the text
Read& Understand
What are the red parts
subheadings
Read &Decide
Read the passage and decide if the subheadings are T or F.
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.
Read and figure out how these statements go wrong.
Read & Understand
Making a paper bag uses ________________ as much energy as making a plastic bag and up to three times _________________ and produces more ________________.
four times
the amount of water
greenhouse gases
Read & Understand
Devices in ___________ mode still use power, and older devices in this mode can use even more, because electricity continues to ____________ the devices, even when it is turned “off”.
stand-by
leak from
Read & Understand
________________ might have used more ____________ and produced more greenhouse gases , even even ___________________________.
Local produce
energy
taking into account its transport
Read & Understand
If you spend over __________________ in a shower, you’ll use _______________________ in a bath – about ______________________.
eight minutes
as much water as
50 litres of water
Read the causes and complete the effects.
Read & Understand
Devices turned off go into stand-by mode and still use power.
Local produce sometimes might use more energy and produce more greenhouse gases than produce grown a long way away – , even taking into account its transport.
If you spend more than eight minutes in a shower, you’ll use as much water as in a bath – , about 50 litres of water.
Causes
Effects
Making a paper bag uses more energy and water than making a plastic bag. It also produces more greenhouse gases.
Paper bags are not always 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's not always better to take a shower than a bath.
Give your measures on the causes and effects.
Read & Reflect
Causes
Effects
Measures
Take a reusable bag with you when you go shopping.
Remove the plug from its
power supply.
Take the production of food into account.
Keep your shower time as short as possible.
What can we do to become really green
Group work
Useful expressions:
Let’s do sth.
We can… rather than…
It helps the environment to...
reduce waste
recycle paper and plastic bottles
save water/energy/ electricity/resources
Take action now!
9
13
become really green
reduce waste
reuse items
recycle items
donate old clothes
walk, bike...
turn off electric devices
use
renewable
energy
17
Eat More Plants
GREEN
Give Up Single-Use Plastics
Reuse Old Things
Save Energy at Home
Never Litter
G
R
E
E
N
Green is not just a color,
but a kind of life.
Self-assessment
After this class, I can rate my performance 1 (excellent), 2(good),
or 3 (in need of improvement).
get the main idea, the structure and detailed information by skimming and scanning;
analyze the passage using the pattern "causes-effects-measures"
raise environmental awareness and take “green actions” in my daily life.
18
Summary
Explain more green truths using the pattern “causes-effects-measures”.
Make a video to call on people to become really green.
Thanks