北师大版（2019）选择性必修 第一册Unit 3 Conservation Topic Talk 课件(共21张PPT)

(共21张PPT)
Unit 3 Conservation
Topic Talk
1.To talk about conservation;
2.To listen and read for general understanding;
3.To listen for specific information and understanding words in the context;
4. To write a short paragraph about conservation;
5.To discuss quotes on conversation.
Learning objectives
Take turns to ask and answer in pairs.
1 Are coral (reefs) living animals or plants Why
2 Why are coral reefs often called the rainforests of the sea
3 What are some of the threats to coral reefs
4 If coral (reefs) were speaking to you, what would they say
Warm up
Watch the video: Nature is speaking
Roots & Shoots The time of its establishment
The founder
The purpose
The meaning of its name
Recall and complete the table below.
In the early 1990s
Dr. Jane Goodall
To educate young people, from pre-school to university students, so they can help to build a future that is secure and live together in peace with nature.
Roots move slowly under the ground to make a firm foundation, and shoots seem small and weak, but they can break open brick walls to reach the light.
Name some human activities that have an impact on the environment.
Farm
farm, work, travel, live, hunt, fish, construct, destroy animal habitats …
What needs to be protected
Farm
the Earth, plants, oceans, forests, animals and the environment, our planet, our land …
Pre-listening
What are the ways we humans destroy Nature
the use of oil and coal, plastic waste, driving cars, overdeveloping natural resources, cutting down forests, mining, building new channels in the sea and factories on the land, creating pollution with chemical waste …
What positive actions should we take to protect our planet
reduce the amount of waste we produce, reuse previously used items, recycle the used things than to burn them, help save energy and resources, cut down the use of unrecyclable plastic, play our part, use cars less, cycle and walk more
Listen to the dialogue and complete the sentences.
I really feel strongly that we need to change the way we _________ in order to protect __________.
I can see that ____________________ is one of the biggest threats to our planet.
We all need to _____________________________________________.
Conservation
live
our planet
the use of oil and coal
recycle and reduce the amount of waste we produce
While-listening
Listen for understanding (Ⅰ)
Listen again and complete the passage.
Professor Linda Wei,______________________, gave a lecture yesterday. Her lecture was really __________! Mei learnt a lot about ___________________________ the world is facing now.
Professor Wei was very _______________ using clean energy. We definitely need to __________ different forms of power as soon as possible. She talked about how ____________ is killing our oceans. We should _________ the use of __________________ to protect our planet.
an environmental expert
informative
the environmental challenges
passionate about
switch to
plastic waste
cut down
unrecyclable plastic
Talk in pairs
Use the Text Builder to talk about your feelings on conservation or how to protect the environment.
I really feel strongly that we need to change the way we live in order to protect our planet.
I can see that the use of oil and coal is one of the biggest threats to our planet.
We all need to recycle and reduce the amount of waste we produce.
1 Why is Dr. Bradshaw working on protecting rhinos
2 What do people do to rhinos
Rhinos are in danger.
Some people incorrectly think rhinos’ horns are useful in medicine and illegally hunt them.
Listen to the dialogue. Answer the questions.
Listen for understanding (Ⅱ)
3 What does Dr. Bradshaw suggest doing
4 What may happen, if we don’t do something now
Making everyone know that hunting these animals is illegal and that these amazing animals are part of the world we live in.
There will be no rhinos left in the world in 20 years.
Discuss in groups
Do you agree or disagree with the quotes (P.51) Support your opinions with a reason/an example. Discuss with your team members about conservation and how we can protect the animals and our environment
Discuss in groups
Conservation is a state of harmony between men and land.
—Aldo Leopold
Take with restraint and use in moderation; this way one shall always know contentment.
—Zizhi Tongjian
Discuss in groups
Conservation means the wise use of the Earth
and its resources for the lasting good of men.
—Gifford Pinchot
Environmental pollution is an incurable disease.
It can only be prevented.
—Barry Commoner
Use the language you have learnt to write a short paragraph about what you know, how you feel and what you need to protect the environment in the future. Then share it in groups.
Assignment
After the lecture, I can see that the use of oil and coal is one of the biggest _______ (threat) to our planet.
threats
He said army officers had threatened to destroy the town.
他说陆军军官们曾威胁要摧毁那座小镇。
threaten v. 威胁
1. threat n. 威胁；（灾难等坏事）发生的可能
There’s a little bit of violence here and there, but nothing that’s a threat to the general situation.
这儿时不时会有一些小的暴力事件发生，不过这并不影响总的局势。
Notes
Milk rounds are threatened as customers switch to buying from supermarkets.
随着顾客转而从超市购买牛奶，送牛奶的生意受到了威胁。
switch off = turn off 关掉；切断；关闭
switch on = turn on 打开；接通
2. switch to 切换到；转到
We definitely need to switch to different forms of power as soon as possible.
我们确实需要尽快转换到不同形式的能源。
This is a collective responsibility; all of us have a role to play.
这是一个需要集体承担的责任，我们大家都可以发挥作用。
She would only play a role if she could identify with the character.
她只愿扮演她能认同的角色。
play a role in 在……中起作用；在……扮演一个角色
3. have a role 起某种作用
do one’s part in doing sth 尽某人的一份力做某事
Everyone must do his part while on duty to protect the safety of the school ground.
在执勤时，每个人都要尽职以确保校园的安全。
The students do their part in cleaning the classroom.
学生们在打扫教室时各尽其责。
4. do our part 尽自己的职责