人教版（2019）选择性必修第三册Unit 3 Environmental Protection Reading and Thinking课件（共32张ppt）
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| 名称 | 人教版（2019）选择性必修第三册Unit 3 Environmental Protection Reading and Thinking课件（共32张ppt） |  | |
| 格式 | pptx | ||
| 文件大小 | 46.2MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-03-27 09:45:34 | ||
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(共32张PPT)
UNIT 3
Environmental Protection
Earth provides enough to satisfy every man’s needs, but not every man’s greed.
— Mohandas K. Gandhi
地球能满足人类的需要，但满足不了人类的贪婪。
Lead-in
What’s the environmental problem in the video
skin and bones
starve to death
what do you guess made the polar bear dead
北极熊
Earth becomes ,and ice ,making it hard for the polar bear to find enough .
warmer
melts
food to eat
Q. What is the graph about What information can you get from it
the change in the Global Surface Temperature between 1920 and 2016.
It shows the temperature anomaly，which shows how much the temperature has risen above what it would usually be at a base level.
Temperature Anomaly（气温反常现象）
听课文，检查预习
Match the main idea with each paragraph.
Para.1
Para.2
Para.3
Para.4
Para.5
A. We need to do something to reduce greenhouse gas emissions.
B. The rise in temperature has caused natural disasters.
C. Earth is getting warmer and warmer.
D. A dead polar bear was found，which alarmed some experts.
E. Why is Earth getting warmer and warmer
Read for structure
Find out the topic sentence of each paragraph.
Paras.1&2
Para.3
Para.4
Para.5
Expository Essay
problem
Paras.1&2
Para.3
Para.4
Para.5
cause
consequence
solutions
What is the author’s purpose of writing this text
The author’s purpose is to inform the reader and inspire them to do whatever they can to deal with this problem.
CLIMATE CHANGE REQUIRES THE WORLD'S ATTENTION
气候变化需要全世界的共同关注
We have known about climate change for decades. There is little doubt that Earth is getting warmer and warmer (see the graph). A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate.
P1
毫无疑问
=as well as 和……一起
剧烈变化
Part 1: Problem
The ________ is getting warmer and warmer.
Evidence 1: ________________________________________
Evidence 2: ______________
Evidence 3: ___________________
Earth
a warming ocean and atmosphere
melting ice
rising sea levels
climate
change
In 2013, a lot of people were shocked by a news photo of a dead polar bear that was found on Norway’s Arctic island of Svalbard. According to the scientists who found its dead body, all that remained of the polar bear was "skin and bones ". An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. This alarming case showed how the increase in temperature had an impact on Earth’s ecology.
定语从句
P2
尸体
定语从句
宾语从句
位置
似乎已经饿死了
专家声称
这个令人震惊的案例
对……有影响
定语从句
宾语从句
被……震惊
宾语从句
宾语从句
climate change
starvation
longer
food-seeking travel
lack of food
low sea-ice level
The following reasons account for the death of the polar bear, with one influencing another. Read paragraph 2 and put them in a correct logical order.
What is the root cause
Cause and effect
Then what is causing the increase in the global average surface temperature Climate scientists often mention a key climate process called the "greenhouse effect ", which has two common meanings: the "natural greenhouse effect and the "man-made greenhouse effect. The "natural "greenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earth's surface as short-wave radiation. The heat is released back into space at longer wave lengths. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat, keeping Earth's climate warm and habitable. Without this process, Earth
P3
全球平均表明温度
温室效应
短波辐射
甲烷和二氧化碳
使地球的气候温暖宜居
后置定语
could not sustain life. However, the "man-made greenhouse effect" has now become
a big problem. When people produce huge amounts of extra greenhouse gases by burning fossil fuels, more heat energy is trapped in the atmosphere and causes Earth's surface temperature to rise quickly.
p3
维持生命
大量的
困在大气层中
While-Reading: read for the details（Para3）
Read Para 3 and find information about “greenhouse effect”.
__________ greenhouse effect
_________ greenhouse effect
causing Earth’s surface temperature ______________ if too much heat energy is _______
natural
man-made
warm
habitable
to rise quickly
trapped
keeping Earth’s climate
_______ and __________
Read Paragraph 3, and figure out the reason why earth’s temperature rising.(cause)
Greenhouse effect
“Natural” greenhouse effect
“man-made” greenhouse effect
While-Reading: read for the details（Para3）
There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also costing human lives. Climate scientists have warned that if we do not take appropriate actions, this warming trend will probably continue and there will be a higher price to pay. In fact, news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses.
p4
有充分而全面的证据
极端天气
造成人员伤亡
这种变暖趋势
经常播出
Part 4 consequence
Q1. What are the consequences of the global temperature rise
Q2. Why did the author mention the climate scientists’ warning
The rise in the temperature
extreme weather & natural disasters
serious damage, costing human lives
extreme rainstorms, heatwaves
led to
results
examples
Because global warming needs everyone’s attention and it is essential that we take appropriate actions.
Continued greenhouse gas emissions will result in further warming and long-lasting changes to the global climate. This requires the attention of people all over the world. Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse
gas emissions. We as individuals can also reduce our "carbon footprint" by restricting the amount of carbon dioxide our lifestyles produce. It is our responsibility to seize every opportunity to educate everyone about global warming, along with its causes and impacts, because this is the most serious issue affecting all of us on this planet. So what will you do to help
p5
导致
制定政策
采取适当的行动和措施
作为个人
限制二氧化碳的量
做某事是某人的责任
What are the solutions to the environmental problems
While-Reading: read for the details（Para5）
What does the last paragraph tell us
A．Global warming is under control now.
B．Enough attention has been focused on the global climate.
C．Individuals make little difference to global warming.
D．Global warming has become the most serious problem for humans.
Group discussion
As a student, what can we do to reduce “carbon footprint” in our daily life
A carbon footprint is defined as the total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).
Group discussion
litter
tree
transportation
light
eat
...
As a student, what can we do to protect the environment in our daily life
Turn off the lights, computers etc. the moment you don’t need them.
Sort out the garbage
Use renewable energies
Stop using plastic bags
Use the minimum paper
Take green transportation
Take a shower instead of a bath
plant more trees
Take the stairs instead of elevator
Climate change
Problem
Solutions
Causes
Effects
government
individuals
extreme weather
natural disasters
Greenhouse effect
natural greenhouse effect
man-made greenhouse effect
A better understanding of climate change
Mind-map
新人教版选择性必修 Book 3
Unit 3 ENVIRONMENTAL
PROTECTION
Language points P26-27
课文回顾
There is little doubt that Earth is getting warmer and warmer.
句意：毫无疑问，地球正变得越来越暖和。
There is little / no doubt that... 毫无疑问……，that 引导的是同位语从句。其中there 不能换成it。
例句：
1. There is no boubt that to realize a goal, one needs not only knowledge but also good personalities.
2. There is little doubt that students should learn something about how computers work.
An expert who has studied polar bears for many years said that from the position of its body, the bear appeared to have starved and died.
句意：一位长期研究北极熊的专家说，从尸体的姿势看，这只北极熊像是饿死的。
定语从句
宾语从句
starve v. (使) 挨饿；饿死
starve for 渴望，极想得到
starve to death 饿死
starvation n. 挨饿
starving adj. 极想的，渴望的
be starving for 渴望得到某物
There is strong and comprehensive evidence that the rise in the temperature has led to an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also costing human lives.
句意：有充分和全面的证据表明，气温升高导致全球极端天气和自然灾害增加，不仅造成严重破坏，而且使人丧命。
同位语从句
现在分词短语作结果状语
It is our responsibility to seize every opportunity to educate everyone about global warming, along with its causes and impacts, because this is the most serious issue affecting all of us on the planet.
句意：我们有责任抓住每一个机会，教育每个人了解全球变暖的原因和影响，因为这是影响这个星球上我们所有人的最严重的问题。
形式主语
不定式作真正的主语
原因状语从句
现在分词短语作定语
THANKS
感谢观看
UNIT 3
Environmental Protection
Earth provides enough to satisfy every man’s needs, but not every man’s greed.
— Mohandas K. Gandhi
地球能满足人类的需要，但满足不了人类的贪婪。
Lead-in
What’s the environmental problem in the video
skin and bones
starve to death
what do you guess made the polar bear dead
北极熊
Earth becomes ,and ice ,making it hard for the polar bear to find enough .
warmer
melts
food to eat
Q. What is the graph about What information can you get from it
the change in the Global Surface Temperature between 1920 and 2016.
It shows the temperature anomaly，which shows how much the temperature has risen above what it would usually be at a base level.
Temperature Anomaly（气温反常现象）
听课文，检查预习
Match the main idea with each paragraph.
Para.1
Para.2
Para.3
Para.4
Para.5
A. We need to do something to reduce greenhouse gas emissions.
B. The rise in temperature has caused natural disasters.
C. Earth is getting warmer and warmer.
D. A dead polar bear was found，which alarmed some experts.
E. Why is Earth getting warmer and warmer
Read for structure
Find out the topic sentence of each paragraph.
Paras.1&2
Para.3
Para.4
Para.5
Expository Essay
problem
Paras.1&2
Para.3
Para.4
Para.5
cause
consequence
solutions
What is the author’s purpose of writing this text
The author’s purpose is to inform the reader and inspire them to do whatever they can to deal with this problem.
CLIMATE CHANGE REQUIRES THE WORLD'S ATTENTION
气候变化需要全世界的共同关注
We have known about climate change for decades. There is little doubt that Earth is getting warmer and warmer (see the graph). A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate.
P1
毫无疑问
=as well as 和……一起
剧烈变化
Part 1: Problem
The ________ is getting warmer and warmer.
Evidence 1: ________________________________________
Evidence 2: ______________
Evidence 3: ___________________
Earth
a warming ocean and atmosphere
melting ice
rising sea levels
climate
change
In 2013, a lot of people were shocked by a news photo of a dead polar bear that was found on Norway’s Arctic island of Svalbard. According to the scientists who found its dead body, all that remained of the polar bear was "skin and bones ". An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. Experts claimed that low sea-ice levels caused by climate change meant the bear could not hunt seals as before, so it had to travel greater distances in order to find food. This alarming case showed how the increase in temperature had an impact on Earth’s ecology.
定语从句
P2
尸体
定语从句
宾语从句
位置
似乎已经饿死了
专家声称
这个令人震惊的案例
对……有影响
定语从句
宾语从句
被……震惊
宾语从句
宾语从句
climate change
starvation
longer
food-seeking travel
lack of food
low sea-ice level
The following reasons account for the death of the polar bear, with one influencing another. Read paragraph 2 and put them in a correct logical order.
What is the root cause
Cause and effect
Then what is causing the increase in the global average surface temperature Climate scientists often mention a key climate process called the "greenhouse effect ", which has two common meanings: the "natural greenhouse effect and the "man-made greenhouse effect. The "natural "greenhouse effect refers to the fact that heat from the sun enters the atmosphere and warms Earth's surface as short-wave radiation. The heat is released back into space at longer wave lengths. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat, keeping Earth's climate warm and habitable. Without this process, Earth
P3
全球平均表明温度
温室效应
短波辐射
甲烷和二氧化碳
使地球的气候温暖宜居
后置定语
could not sustain life. However, the "man-made greenhouse effect" has now become
a big problem. When people produce huge amounts of extra greenhouse gases by burning fossil fuels, more heat energy is trapped in the atmosphere and causes Earth's surface temperature to rise quickly.
p3
维持生命
大量的
困在大气层中
While-Reading: read for the details（Para3）
Read Para 3 and find information about “greenhouse effect”.
__________ greenhouse effect
_________ greenhouse effect
causing Earth’s surface temperature ______________ if too much heat energy is _______
natural
man-made
warm
habitable
to rise quickly
trapped
keeping Earth’s climate
_______ and __________
Read Paragraph 3, and figure out the reason why earth’s temperature rising.(cause)
Greenhouse effect
“Natural” greenhouse effect
“man-made” greenhouse effect
While-Reading: read for the details（Para3）
There is strong and comprehensive evidence that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also costing human lives. Climate scientists have warned that if we do not take appropriate actions, this warming trend will probably continue and there will be a higher price to pay. In fact, news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses.
p4
有充分而全面的证据
极端天气
造成人员伤亡
这种变暖趋势
经常播出
Part 4 consequence
Q1. What are the consequences of the global temperature rise
Q2. Why did the author mention the climate scientists’ warning
The rise in the temperature
extreme weather & natural disasters
serious damage, costing human lives
extreme rainstorms, heatwaves
led to
results
examples
Because global warming needs everyone’s attention and it is essential that we take appropriate actions.
Continued greenhouse gas emissions will result in further warming and long-lasting changes to the global climate. This requires the attention of people all over the world. Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse
gas emissions. We as individuals can also reduce our "carbon footprint" by restricting the amount of carbon dioxide our lifestyles produce. It is our responsibility to seize every opportunity to educate everyone about global warming, along with its causes and impacts, because this is the most serious issue affecting all of us on this planet. So what will you do to help
p5
导致
制定政策
采取适当的行动和措施
作为个人
限制二氧化碳的量
做某事是某人的责任
What are the solutions to the environmental problems
While-Reading: read for the details（Para5）
What does the last paragraph tell us
A．Global warming is under control now.
B．Enough attention has been focused on the global climate.
C．Individuals make little difference to global warming.
D．Global warming has become the most serious problem for humans.
Group discussion
As a student, what can we do to reduce “carbon footprint” in our daily life
A carbon footprint is defined as the total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO2).
Group discussion
litter
tree
transportation
light
eat
...
As a student, what can we do to protect the environment in our daily life
Turn off the lights, computers etc. the moment you don’t need them.
Sort out the garbage
Use renewable energies
Stop using plastic bags
Use the minimum paper
Take green transportation
Take a shower instead of a bath
plant more trees
Take the stairs instead of elevator
Climate change
Problem
Solutions
Causes
Effects
government
individuals
extreme weather
natural disasters
Greenhouse effect
natural greenhouse effect
man-made greenhouse effect
A better understanding of climate change
Mind-map
新人教版选择性必修 Book 3
Unit 3 ENVIRONMENTAL
PROTECTION
Language points P26-27
课文回顾
There is little doubt that Earth is getting warmer and warmer.
句意：毫无疑问，地球正变得越来越暖和。
There is little / no doubt that... 毫无疑问……，that 引导的是同位语从句。其中there 不能换成it。
例句：
1. There is no boubt that to realize a goal, one needs not only knowledge but also good personalities.
2. There is little doubt that students should learn something about how computers work.
An expert who has studied polar bears for many years said that from the position of its body, the bear appeared to have starved and died.
句意：一位长期研究北极熊的专家说，从尸体的姿势看，这只北极熊像是饿死的。
定语从句
宾语从句
starve v. (使) 挨饿；饿死
starve for 渴望，极想得到
starve to death 饿死
starvation n. 挨饿
starving adj. 极想的，渴望的
be starving for 渴望得到某物
There is strong and comprehensive evidence that the rise in the temperature has led to an increase in extreme weather and natural disasters worldwide, not only causing serious damage, but also costing human lives.
句意：有充分和全面的证据表明，气温升高导致全球极端天气和自然灾害增加，不仅造成严重破坏，而且使人丧命。
同位语从句
现在分词短语作结果状语
It is our responsibility to seize every opportunity to educate everyone about global warming, along with its causes and impacts, because this is the most serious issue affecting all of us on the planet.
句意：我们有责任抓住每一个机会，教育每个人了解全球变暖的原因和影响，因为这是影响这个星球上我们所有人的最严重的问题。
形式主语
不定式作真正的主语
原因状语从句
现在分词短语作定语
THANKS
感谢观看