Unit 1 Nature in the balance Welcome to the unit课件（共16张，内嵌视频）-高中英语 译林版(2020) 必修第三册

(共16张PPT)
Unit 1
Nature in the balance
harm
soil
ecosystem
overseas
region
continent
million
length
biodiversity
species
n. vt.伤害，损害
n.土壤；国土，领土，土地
n.生态系统
adj.海外的，国外的 adv.在海外，向国外
n.地区，区域；行政区
n.大陆，陆地，洲
num.一百万；许多，大量
n.长，长度；时间的长短；篇幅，(电影)片长
n.生物多样性
n. (pl. species) 种，物种
Words review
What can you see in the picture
However,
it is a totally different situation in some other places !!!
Look and think
Air pollution
White pollution
Global warming
Watch the video about the promo of World Environment Day. Share how you feel about the world we’re living in.
Let us not, however, flatter ourselves over much on account of our human victories over nature. For each such victory nature takes its revenge on us.
—Friedrich Engels
flatter yourself (that…)
2. If something happens overmuch, it happens too much.
3. on account of
4. If you take revenge on someone who has hurt you, you hurt them in return.
自以为是; 高看自己
过度地
= because of 因为；由于
报复
Let us not, however, flatter ourselves over much on account of our human victories over nature. For each such victory nature takes its revenge on us.
—Friedrich Engels
“但是我们不要过分陶醉于我们人类对自然界的胜利。对于每一次这样的胜利，自然界都对我们进行报复。”
——弗里德里希 恩格斯
The human race has done much harm.
We have polluted our soils and seas,
And cut down too much trees.
Now is the time to sound the alarm.
We want to live in a world that's clean;
We want to live in a world of green.
The human race has done much harm;
Now is the time to sound the alarm.
Let's be thankful for the skies above;
Let's plant new trees and stop pollution;
Let's work together to find the solution;
The Earth's our home to protect and love.
We want to live in a world that's claen;
We want to live in a world of green.
Let's be thankful for the skies above;
The Earth's our home to protect and love.
The earth is our only home
Discussion
What is the message of the song
Humans have done much harm to the Earth, and we have to take action to change the situation.
Find out the wrong behavior in the picture.
noise
pollution
heavy smoke
clear-cut
logging
smoking
shooting birds
littering on the ground
wasting water
letting off off-gas
pouring out
waste water
排放废水
littering into the water
往水里丢垃圾
清场伐木
排放尾气
随地乱扔
What can you do to help protect the environment
Possible answewr: We can use less paper and fewer plastic bottles and bags. Cutting down on electricity usage can also help reduce the air pollution that power stations create.
Watch the video and take notes of how to save our world.
Prsentation
What can we do to help protect the environment
plant more trees
use less paper
drive less and walk more
use fewer plastic bottles and bags
save water and cut down the use of electricity
don't waste food
don't use one-off things
if possible, don't use air conditioners
Build a resource-saving and environment-friendly society.
...
Proverbs
Preview Reading part.
Write a passage to call on people to protect our environment.