Unit 3 Environmental Protection Reading and Thinking 课件 （共37张，内嵌视频）-高中英语人教版（2019）选择性必修第三册
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| 名称 | Unit 3 Environmental Protection Reading and Thinking 课件 （共37张，内嵌视频）-高中英语人教版（2019）选择性必修第三册 |  | |
| 格式 | pptx | ||
| 文件大小 | 37.2MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-04-02 20:37:13 | ||
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(共37张PPT)
Unit 3 Environmental Protection
Reading and Thinking
Teaching Objectives:
1. Know about climate change and summarise the main idea of each paragraph.
2. Learn about the "greenhouse effect" and create a diagram describing how it works.
3. Analyse the consequences of climate change and enhance the awareness of environmental protection.
Key and difficult points:
Key point：Learn about the "greenhouse effect" and create a diagram describing how it works.
Difficult point：Voice their personal opinions about how to deal with climate change.
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。
Part 1 Lead-in
What is it about
Look at the picture and graph below.
What information can you get from it
The earth is becoming warmer and warmer.
Why
Because of the global warming.
What other consequences of the global warming
Part 2 Pre-reading
Predict the main idea from the title and pictures.
Global warming has caused some disasters and we must pay attention to it.
Vocabulary
starve
die of/from starvation 饿死
starve to death 饿死
be starving 感觉很饿，饿极了
be starved of/for 缺乏......
练习：They'll either die from the cold or starve _______ death.
to
vi.& vt.(使)挨饿;饿死
Vocabulary
refer to
refer...to... 把……送交给……(以求获得帮助等)
reference n.提及,涉及;查阅,参考;推荐信
in/with reference to 关于
for future reference 供日后参考
练习：I promise not ____________ (提到) this matter again.
to refer to
1. 指的是 2.提到,谈到
Vocabulary
release
release a prisoner 释放囚犯
a release from prison 从狱中释放
release a movie 发行影片
the latest release 最新版本
练习：On the peak, she burst into tears, ____________ (release) all her emotions.
releasing
vt.&n.排放;释放;发布
Vocabulary
restrict
restriction n.限制规定;限制法规;约束
restrict...to... 把......限制在......
restrict one’s freedom 限制某人的自由
speed restrictions 速度限制
a restriction on smoking in schools
禁止在学校吸烟
练习：Access to the club is restricted _______ members only.
to
vt.限制;限定(数量、范围等);束缚;妨碍
Part 3 While-reading
Fast-reading
Read the passage and match the main idea with each paragraph.
Para.1
Para.2
Para.3
Para.4
Para.5
A. Solutions to reducing greenhouse gas emission.
B. The effect of rising temperature.
C. Earth is getting warmer and warmer&evidence.
D. The evidence (alarming cases) of climate change.
E. The cause of rising temperature.
Fast-reading
Read & Think: The structure and text type
Problem
Causes
Consequences
Solution
Fast-reading
Read & Think: Choose the right answer
1. What's the function of the first paragraph of the text
A. To introduce the topic.
B. To tell us climate change has been known for decades.
C. To show the evidence of climate change.
D. To confirm that Earth is getting warmer and warmer.
2. Why is the photo of a dead polar bear mentioned
A. To describe how people were shocked.
B. To show how global warming influenced Earth's ecology.
C. To study how the bear died.
D. To explain why the bear had starved to death.
Fast-reading
Read & Think: Choose the right answer
3. Why do the climate scientists give a warning
A. They don't want to find more dead animals.
B. News reports deal with climate change wrongly.
C. Climate change has brought natural disasters.
D. They have found more evidence.
4. Why does climate change require the world's attention
A. The number of polar bears is smaller and smaller.
B. News reports are often broadcast about extreme rainstorms and heatwaves causing deaths and losses.
C. Governments can force people to reduce "carbon footprint".
D. It is affecting all of us on the planet and if it is left alone, we will pay an even higher price.
Reading for details
Para.1
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.
毫无疑问……
短语介词，意为“与……一起”
Reading for details
Para.1
What is the problem about climate change
The ________ is getting warmer and warmer.
Earth
climate
change
Evidence 2: _____________________
Evidence 1: ___________________________
Evidence 3: ___________________________
a warming ocean and atmosphere
melting ice
rising sea levels
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，修饰先行词 polar bear
Reading for details
Para.2
定语从句，修饰先行词expert
adj. 饥饿的
n. 生态学；生态
动词不定式短语，作系动词appear的表语
过去分词短语作后置定语
Reading for details
Para.2
An example of climate change
The news photo of a dead polar bear was taken in Norway’s Arctic of Svalbard in 2013.
The polar bear was “little more than skin and bones”.
Reading for details
Para.1-2
Can you use your words to describe how climate change have influenced the polar bear’s life
Climate change
Low sea-ice levels
Bears could not hunt
Its dead body found
Starved to death
Had to travel longer distance to find food
Reading for details
Para.3
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.
过去分词短语作后置定语
非限制定语从句，对先行词
the "green house effect"进行补充说明
that引导的同位语从句，解释说明the fact的具体内容
Reading for details
Para.3
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 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.
v. 松开，排出，免除
adj. 碳的；碳处理的
v. 支撑；支援；维持
n. 燃料
现在分词短语作结果状语
动词不定式短语作宾补
Reading for details
Para.3
Read Paragraph 3, and figure out the reason why earth’s temperature rising.
Keeping Earth’s warm and habitable
“Natural” greenhouse effect
“man-made” greenhouse effect
Causing Earth’s surface temperature to rise quickly if too much heat energy is trapped
Greenhouse effect
Reading for details
Para.4
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.
adj. 综合性的，全面的
n. 趋势，倾向
adv. 经常地
adj. 广播的；广泛散布的
确凿、全面的证据表明……
两个并列的现在分词短语作结果状语
动词不定式作定语
现在分词短语作后置定语
Reading for details
Para.4
What are the consequences of the global temperature rise
The rise in temperature
leads to
extreme weather/ natural disasters
extreme rainstorms, heatwaves
examples
serious damage, costing human lives, economic losses
results
Reading for details
Para.5
What is “carbon footprint”
Reading for details
Para.5
What can we do to help reduce the global warming
solutions
governments
make policies
take appropriate actions and measures
individuals
reduce our "carbon footprint" by…
educate everyone about global warming
Part 4 Post-reading
Summarizing
CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION
The present situation
The causes
The impacts
The solutions
Earth is getting warmer and warmer.
A warming ocean and atmosphere along with melting ice and rising sea levels.
The “man-made” greenhouse effect has now become a big problem.
Huge quantities of extra greenhouse gases produced by burning fossil fuels cause Earth's surface temperature to rise quickly.
The rise in temperature has led to an increase in extreme weather and natural disasters worldwide.
News reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses.
Governments need to consider making policies and taking appropriate actions and measures.
We as individuals can reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce.
根据课文内容和语法规则完成短文
There is little doubt 1._________ Earth is getting warmer and warmer. In 2013, a lot of people 2._______________(shock) by a news photo of a dead polar bear 3.___________ appeared to have starved and died. This 4.__________(alarm) case showed how the increase in temperature had 5._______ impact on Earth's ecology.
Then what is causing the increase in the global average surface temperature Climate scientists think the climate process "greenhouse effect" makes it possible for Earth 6.__________ (sustain) life. However, the "man-made" greenhouse effect makes more heat energy 7.___________ (trap) in the atmosphere and causes Earth's surface temperature to rise quickly.
that
were shocked
that/which
alarming
an
to sustain
trapped
根据课文内容和语法规则完成短文
The rise in temperature has led to an increase in extreme weather and natural 8.__________(disaster) worldwide. News reports are 9.__________(frequent) broadcast about extreme rainstorms and heatwaves. This requires the attention of people all over the world. 10._________ is also our responsibility to seize every opportunity to educate everyone about global warming.
disasters
frequently
It
Part 5 Language Points
Language points
(教材P.26) There is little doubt that Earth is getting warmer and warmer... 毫无疑问，地球正变得越来越温暖……
本句是复合句，that引导同位语从句，解释说明抽象名词doubt的具体内容。
There is little doubt that the results are entirely consistent with our earlier research.
毫无疑问，这些结果与我们早些时候的研究完全吻合。
There is little/no doubt that... 毫无疑问......
There is no doubt that she's very modest about her success.
毫无疑问，她对自己的成功非常谦虚。
There is some doubt about... 对……有些疑问。
Sb. has some doubt about… 某人对……有些疑问
Language points
(教材P.27) There is strong and comprehensive evidence that the rise in temperature has led to… 确凿、全面的证据表明，温度上升导致……
本句是复合句，that引导同位语从句，解释说明抽象名词evidence的具体内容。
There's strong evidence that too much dessert is bad for your teeth.
有充分的证据表明，吃太多甜食对牙齿不好。
There is evidence that... 有证据表明……
evident adj.明显的，显然的
It is evident that... 很明显……
It was evident that the chef was going to lose his temper.
很明显，厨师要发脾气了。
SEE YOU NEXT TIME
Unit 3 Environmental Protection
Reading and Thinking
Teaching Objectives:
1. Know about climate change and summarise the main idea of each paragraph.
2. Learn about the "greenhouse effect" and create a diagram describing how it works.
3. Analyse the consequences of climate change and enhance the awareness of environmental protection.
Key and difficult points:
Key point：Learn about the "greenhouse effect" and create a diagram describing how it works.
Difficult point：Voice their personal opinions about how to deal with climate change.
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。
Part 1 Lead-in
What is it about
Look at the picture and graph below.
What information can you get from it
The earth is becoming warmer and warmer.
Why
Because of the global warming.
What other consequences of the global warming
Part 2 Pre-reading
Predict the main idea from the title and pictures.
Global warming has caused some disasters and we must pay attention to it.
Vocabulary
starve
die of/from starvation 饿死
starve to death 饿死
be starving 感觉很饿，饿极了
be starved of/for 缺乏......
练习：They'll either die from the cold or starve _______ death.
to
vi.& vt.(使)挨饿;饿死
Vocabulary
refer to
refer...to... 把……送交给……(以求获得帮助等)
reference n.提及,涉及;查阅,参考;推荐信
in/with reference to 关于
for future reference 供日后参考
练习：I promise not ____________ (提到) this matter again.
to refer to
1. 指的是 2.提到,谈到
Vocabulary
release
release a prisoner 释放囚犯
a release from prison 从狱中释放
release a movie 发行影片
the latest release 最新版本
练习：On the peak, she burst into tears, ____________ (release) all her emotions.
releasing
vt.&n.排放;释放;发布
Vocabulary
restrict
restriction n.限制规定;限制法规;约束
restrict...to... 把......限制在......
restrict one’s freedom 限制某人的自由
speed restrictions 速度限制
a restriction on smoking in schools
禁止在学校吸烟
练习：Access to the club is restricted _______ members only.
to
vt.限制;限定(数量、范围等);束缚;妨碍
Part 3 While-reading
Fast-reading
Read the passage and match the main idea with each paragraph.
Para.1
Para.2
Para.3
Para.4
Para.5
A. Solutions to reducing greenhouse gas emission.
B. The effect of rising temperature.
C. Earth is getting warmer and warmer&evidence.
D. The evidence (alarming cases) of climate change.
E. The cause of rising temperature.
Fast-reading
Read & Think: The structure and text type
Problem
Causes
Consequences
Solution
Fast-reading
Read & Think: Choose the right answer
1. What's the function of the first paragraph of the text
A. To introduce the topic.
B. To tell us climate change has been known for decades.
C. To show the evidence of climate change.
D. To confirm that Earth is getting warmer and warmer.
2. Why is the photo of a dead polar bear mentioned
A. To describe how people were shocked.
B. To show how global warming influenced Earth's ecology.
C. To study how the bear died.
D. To explain why the bear had starved to death.
Fast-reading
Read & Think: Choose the right answer
3. Why do the climate scientists give a warning
A. They don't want to find more dead animals.
B. News reports deal with climate change wrongly.
C. Climate change has brought natural disasters.
D. They have found more evidence.
4. Why does climate change require the world's attention
A. The number of polar bears is smaller and smaller.
B. News reports are often broadcast about extreme rainstorms and heatwaves causing deaths and losses.
C. Governments can force people to reduce "carbon footprint".
D. It is affecting all of us on the planet and if it is left alone, we will pay an even higher price.
Reading for details
Para.1
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.
毫无疑问……
短语介词，意为“与……一起”
Reading for details
Para.1
What is the problem about climate change
The ________ is getting warmer and warmer.
Earth
climate
change
Evidence 2: _____________________
Evidence 1: ___________________________
Evidence 3: ___________________________
a warming ocean and atmosphere
melting ice
rising sea levels
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，修饰先行词 polar bear
Reading for details
Para.2
定语从句，修饰先行词expert
adj. 饥饿的
n. 生态学；生态
动词不定式短语，作系动词appear的表语
过去分词短语作后置定语
Reading for details
Para.2
An example of climate change
The news photo of a dead polar bear was taken in Norway’s Arctic of Svalbard in 2013.
The polar bear was “little more than skin and bones”.
Reading for details
Para.1-2
Can you use your words to describe how climate change have influenced the polar bear’s life
Climate change
Low sea-ice levels
Bears could not hunt
Its dead body found
Starved to death
Had to travel longer distance to find food
Reading for details
Para.3
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.
过去分词短语作后置定语
非限制定语从句，对先行词
the "green house effect"进行补充说明
that引导的同位语从句，解释说明the fact的具体内容
Reading for details
Para.3
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 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.
v. 松开，排出，免除
adj. 碳的；碳处理的
v. 支撑；支援；维持
n. 燃料
现在分词短语作结果状语
动词不定式短语作宾补
Reading for details
Para.3
Read Paragraph 3, and figure out the reason why earth’s temperature rising.
Keeping Earth’s warm and habitable
“Natural” greenhouse effect
“man-made” greenhouse effect
Causing Earth’s surface temperature to rise quickly if too much heat energy is trapped
Greenhouse effect
Reading for details
Para.4
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.
adj. 综合性的，全面的
n. 趋势，倾向
adv. 经常地
adj. 广播的；广泛散布的
确凿、全面的证据表明……
两个并列的现在分词短语作结果状语
动词不定式作定语
现在分词短语作后置定语
Reading for details
Para.4
What are the consequences of the global temperature rise
The rise in temperature
leads to
extreme weather/ natural disasters
extreme rainstorms, heatwaves
examples
serious damage, costing human lives, economic losses
results
Reading for details
Para.5
What is “carbon footprint”
Reading for details
Para.5
What can we do to help reduce the global warming
solutions
governments
make policies
take appropriate actions and measures
individuals
reduce our "carbon footprint" by…
educate everyone about global warming
Part 4 Post-reading
Summarizing
CLIMATE CHANGE REQUIRES THE WORLD’S ATTENTION
The present situation
The causes
The impacts
The solutions
Earth is getting warmer and warmer.
A warming ocean and atmosphere along with melting ice and rising sea levels.
The “man-made” greenhouse effect has now become a big problem.
Huge quantities of extra greenhouse gases produced by burning fossil fuels cause Earth's surface temperature to rise quickly.
The rise in temperature has led to an increase in extreme weather and natural disasters worldwide.
News reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses.
Governments need to consider making policies and taking appropriate actions and measures.
We as individuals can reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce.
根据课文内容和语法规则完成短文
There is little doubt 1._________ Earth is getting warmer and warmer. In 2013, a lot of people 2._______________(shock) by a news photo of a dead polar bear 3.___________ appeared to have starved and died. This 4.__________(alarm) case showed how the increase in temperature had 5._______ impact on Earth's ecology.
Then what is causing the increase in the global average surface temperature Climate scientists think the climate process "greenhouse effect" makes it possible for Earth 6.__________ (sustain) life. However, the "man-made" greenhouse effect makes more heat energy 7.___________ (trap) in the atmosphere and causes Earth's surface temperature to rise quickly.
that
were shocked
that/which
alarming
an
to sustain
trapped
根据课文内容和语法规则完成短文
The rise in temperature has led to an increase in extreme weather and natural 8.__________(disaster) worldwide. News reports are 9.__________(frequent) broadcast about extreme rainstorms and heatwaves. This requires the attention of people all over the world. 10._________ is also our responsibility to seize every opportunity to educate everyone about global warming.
disasters
frequently
It
Part 5 Language Points
Language points
(教材P.26) There is little doubt that Earth is getting warmer and warmer... 毫无疑问，地球正变得越来越温暖……
本句是复合句，that引导同位语从句，解释说明抽象名词doubt的具体内容。
There is little doubt that the results are entirely consistent with our earlier research.
毫无疑问，这些结果与我们早些时候的研究完全吻合。
There is little/no doubt that... 毫无疑问......
There is no doubt that she's very modest about her success.
毫无疑问，她对自己的成功非常谦虚。
There is some doubt about... 对……有些疑问。
Sb. has some doubt about… 某人对……有些疑问
Language points
(教材P.27) There is strong and comprehensive evidence that the rise in temperature has led to… 确凿、全面的证据表明，温度上升导致……
本句是复合句，that引导同位语从句，解释说明抽象名词evidence的具体内容。
There's strong evidence that too much dessert is bad for your teeth.
有充分的证据表明，吃太多甜食对牙齿不好。
There is evidence that... 有证据表明……
evident adj.明显的，显然的
It is evident that... 很明显……
It was evident that the chef was going to lose his temper.
很明显，厨师要发脾气了。
SEE YOU NEXT TIME