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(共20张PPT)
Unit 6 Earth first
Developing ideas
water pollution
deforestation
air pollution
global warming
Review ：What problems are mentioned in “Starting out”
loss of biodiversity
生物多样性的损失
plastic pollution
What should be done to help to solve them as a student
Green Lifestyle
save water
reduce waste
choose reusable items
use renewable energy
donate old clothes
walk, bike…
“Green”: if you say someone or something is green, you mean they harm the environment as little as possible.
carbon footprint
Look at the questions about "green living" and tick your answers.
Let’s read and check!
While-reading
Read the four subheadings in the passage, decide whether they are true or false and explain your reasons.
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.
Making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water. The process also produces more greenhouse gases.
Paper shopping bags are better than plastic ones.
× False.
温室气体
True or false？
When you turn off a device, it stops using power.
× False.
When we turn off a device, such as television, it goes into stand-by mode. Devices in this mode still use power, and older devices in stand-by mode can use even more.
True or false？
Eating local food is good for the environment.
× False.
In some cases, local produce might have used more energy and produced more greenhouse gases than produce grown a long way away — even taking into account its transport.
n. 产品;(尤指)农产品
True or false？
It’s better to take a shower than a bath.
× False.
It depends on how long you spend in the shower and how large your bath is. 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.
8 mins
True or false？
Read the effects and complete the causes of these according to the passage
water than
making a
plastic bag.
environment.
Devices turned off go into stand-by mode and still use power.
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.
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.
Measures
Take a reusable bag with you when you go shopping.
Remove the plug from its power supply.
Analyze the situation and
make right decisions.
keep your shower time
as short as possible.
Read the effects and complete the causes of these according to the passage
The structure of this passage
What’s
really
green
Part 1: introduction
Part 2: main body
Part 3: conclusion
false green truth 1
false green truth 2
false green truth 3
false green truth 4
Causes
Effects
Measures
What is the function of the subheadings
expand on: to add details to what you are saying
What's the main idea of the passage
关键词
It discusses some common _________ which have been shown to be only________ or even completely__________
green truths
false
half true
Are you aware of any other “green truths” that are not true
The organic food sometimes is not as green as we suppose.
Cactus 仙人掌 cannot protect us from radiation辐射.
Post-reading
How “green” are you
Think and share
……
refuse to buy over-packaged products
donate the clothes you’ve outgrown to others
R
R
Turn off the computer every now and then.
educe
Be careful how long you take a shower.
Turn off the water when you are brushing your teeth.
use the necessary energy
Turn off the lights when they are not in use .
Walk to school
Pull out plugs when you are not using them.
R
euse
ecycle
What can you do to become “greener”
R
R
Reuse bottles bags,containers,rags...
euse
Donate clothes. Don’t just discard them.
Donate toys, so someone can use them.
If you can use it again, don’t throw it out!
ecycle
Recycle some things to make new stuff, like paper, plastic, glass, cardboard, games, CDs and DVDs.
Lots of metals you can choose...
According to the slogan you choose, please design a poster to appeal to people to protect our planet.
Turn off the lights when they are not in use .

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