牛津译林版（2019）必修 第三册Unit 1 Nature in the balance Welcome to the Unit 课件(共31张PPT)

(共31张PPT)
harm
soil
ecosystem
overseas
region
continent
million
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
Words review
length
biodiversity
species
nut
brazil nut
lily
water lily
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
n.坚果
巴西坚果
n.百合（花）
睡莲
Words review
variety
wildlife
beneath
mass
towering
hardwood
n.不同种类；变化，多样性；
变种，变体
n.野生动植物，野生生物
prep.在…下面，在…下方；
配不上
n.大量；团，块，堆；一大群
adj.大批的，广泛的
adj.高大的，高耸的；出色的
n.阔叶树；硬材（阔叶树的木材）
Words review
Welcome to the Unit P1
牛津必修Book 3
Unit 1 Nature in the Balance
What will the Earth look like in 100 years
or will it look like this
Leading-in
BUT
It is a totally different thing in some other places !!!
Look at the pictures and think about:
What environmental problem does each picture refer to
Water pollution
deforestation
What environmental problem does each
picture refer to
Water Pollution
It results when contaminants(污染)are introduced into the natural environment. In turn, this can lead to public health problems for people living downstream(下游方向的).
Water pollution is the leading主要的 worldwide全球范围的 cause of death and disease.
Water pollution
deforestation
What environmental problem does each
picture refer to
Deforestation采伐森林
Trees are cut down for use as building material or sold as fuel燃料.
The removal of trees without sufficient reforestation has resulted in habitat damage, biodiversity loss, and aridity干旱.
Water pollution
deforestation
What environmental problem does each
picture refer to
Global Warming
It is the unusually rapid increase in Earth's average surface temperature over the past century.
The long-term effects of global warming include further ice melt, ocean warming, sea level rise, and ocean acidification酸化.
Water pollution
deforestation
What environmental problem does each
picture refer to
Air pollution
It may cause diseases, allergies and even death to humans; It may also cause harm to other living organisms such as animals and food crops, and may damage the natural or built environment.
Let us not, however, flatter ourselves overmuch on account of our human victories over nature. For each such victory nature takes its revenge on us.
—Friedrich Engels
但是我们不要对我们人类对自然界的胜利过分自以为是。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
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
The Earth is our only home.
Listen to the song below.
Discuss the following questions in pairs.
Discussion
1. What is the message of the song
Humans have done much harm to the Earth, and we have to take action to change this situation.
Discuss the following questions in pairs.
Discussion
2. What are the rhymes of this song
harm/alarm;
seas/trees;
clean/green;
above/love;
pollution/sollution
Discuss the following questions in pairs.
Discussion
3. How do you understand “harm” and “alarm” in the song
Harm refers to something bad that we have done to the Earth, including polluting soils and seas, cutting down too many tress, etc.
Alarm refers tothe warning of environmental damage, which urges us to find a solution to this problem.
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.
What can you do to help protect the environment
1. drive less and walk more
2. save water and cut down the use of electricity
3. plant trees
4. don't waste food
5. don't use one-off/disposable things
6. . .....
reduce the waste
reuse the resources
recycle the waste
…
President Xi Jinping has called for garbage classification to help save resources and protect the environment. According to the central government's plan, all major cities are expected to initiate garbage classification.
https://www./video/BV1gt41137Fy share_source=copy_web
垃圾分类
metal 金属
plastic 塑料
glass 玻璃
paper
纸类
expired food
过期食品
food leftovers
剩菜剩饭
fruit peels and cores
果皮渣滓
viscus
禽畜内脏
lamp bulbs
灯泡
paint and containers
油漆
insecticides
杀虫剂
stained papers
卫生纸品
dust
灰尘渣土
disposable goods
一次性用品
cigarette butts
烟头
batteries
电池
Which recycling bins will you put them into
Further Discussion
What do you think is the significance of human being’s living in harmony with nature
1. sustainable development
2. a win-win policy for our future generation
Language points
The human race has down much harm.
n.伤害
mean no harm to sb....（对某人无恶意）
do no harm 对...没有伤害
do ( great/much/a lot of )harm to 对....造成巨大的伤害
He would never frighten anyone or cause them any harm .
他永远不会吓唬或伤害任何人。
Language points
The human race has down much harm.
v. 伤害，损害
He would never ______ anyone.
他永远不会伤害任何人。
Pollution can ______ marine life.
污染会危及海洋生物。
harm
harm
Language points
We have polluted our soils and seas.
n.土壤；国土，领土，领地，土壤
poor/dry/acid/sandy/fertile soil
贫瘠、干旱、酸性、沙质、肥沃的土壤
the study of rocks and soils
对岩石和土壤的研究
soil erosion
土壤侵蚀
It was the first time I had set foot on African soil.
那是我第一次踏上非洲大地。
Homework
Preview the reading “The Amazon rainforest: a natural treasure”
Finish the exercise.
Thank you