Unit 6 Earth first Understanding ideas（教学课件）-外研版（2019）必修第二册（共41页PPT）
文档属性
| 名称 | Unit 6 Earth first Understanding ideas（教学课件）-外研版（2019）必修第二册（共41页PPT） |  | |
| 格式 | pptx | ||
| 文件大小 | 75.1MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 外研版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-08-01 10:58:45 | ||
图片预览
文档简介
(共40张PPT)
Starting out & Understanding ideas
Unit 6
Earth first
CONTENTS
01
Lead-in
02
03
Exercise
05
Learning Objectives
Reading
06
Summary
07
Homework
04
Language points
Learning Objectives
PART. 01
Learning Objectives
Extract and summarize information about sharks from the text, including their endangerment status and the reasons behind it.
Analyze the text structure and argumentative logic to better understand how the author presents and develops the theme.
Master key expressions related to sharks and environmental protection.
Foster an awareness of environmental and animal protection, and be inspired to consider what actions can be taken in daily life to protect sharks and their habitats.
Teaching Focuses and Anticipated Difficulties
Analyze the reasons for sharks' endangerment and misunderstandings about them, and master relevant vocabulary and expressions.
Think critically about the complex relationship between human activities and shark endangerment.
PART. 02
Lead-in
What do you know about World Earth Day
世界地球日（World Earth Day）定于每年 4 月 22 日，起源于 20 世纪 60 年代美国的环保觉醒。1969 年美国参议员盖洛德 尼尔森提议校园环保活动，经哈佛大学学生丹尼斯 海斯推动，1970 年 4 月 22 日首次 “地球日” 吸引 2000 万美国人参与，成为现代环保运动开端。1990 年活动扩展至全球，2009 年联合国大会正式将 4 月 22 日定为 “世界地球日”，使其成为全球性环保行动日。
What can we do to protect the Earth？
Daily Actions
Reduce waste.
Recycle paper, plastic, and glass.
Save energy.
Conserve water.
Sustainable Habits
Choose public transport/bike/walk.
Support eco-friendly products.
Plant trees/grow a garden.
Switch to solar/wind energy.
Watch the video and answer the questions.
Watch the video and answer the questions.
1 Which of the facts in the video do you find most alarming
2 What does the video want to tell us
The most alarming fact I find in the video is that around 150 to 200 species of plants and animals become extinct - nearly 1,000 times the natural rate of extinction.
Severe environmental problems we are facing nowadays make our future uncertain. It’s time for everyone to take action now and make our planet a greener and safer place for our future generations.
Look at the cartoons and answer the questions.
1 What environmental problem does each cartoon refer to
water pollution
deforestation
air pollution
global warming
Look at the cartoons and answer the questions.
2 What are the causes of these problems
water pollution: people drop litter carelessly; industrial waste-water discharge...
deforestation: people cut down trees to make paper...
air pollution: illegal discharge of industrial waste gas...
global warming: heavy use of private cars...
3 What do you think is the most serious environmental problem we face today What should be done to help solve it
I think global warming is the most serious environmental problem we face today.
Promote renewable energy Improve energy efficiency
Reduce fossil fuel use Strengthen carbon capture technology....
PART. 03
Reading
Tick the words that you would use to describe sharks. Add any more you can think of.
dangerous
powerful
endangered
interesting
man-eating
terrifying
cute
intelligent
huge
flexible
fierce
sharp teeth
Have you ever seen the movie Jaws or other films about wild animals
Jaws is a classic（经典的） 1975 thriller（惊悚片） by Steven Spielberg. Set in a U.S. seaside town（海滨小镇）, it tells of a huge man-eating（食人（的）） great white shark attacking beachgoers（去海滩的人）. A police chief（警察局长）, a marine biologist（海洋生物学家）, and a shark hunter（捕鲨人） join forces（联手；合力） to stop it. Tense（紧张的） and exciting, it’s famous for its suspense（悬念） and iconic（标志性的） shark scenes.
Make predictions according to the title.
What does the title Sharks: Dangerous or Endangered mean
On one hand, it notes the common view of sharks as "dangerous".
On the other hand, it notes that many shark species are "endangered" due to overfishing, habitat loss, and climate change.
Skim the passage and Fill in the following chart.
Sharks:
Dangerous of Endangered
Para.____ + Para.____
____________
Para.____ + Para. 4
_____________
Para. 5
More people want to
___________________________.
1
2
3
endangered
protect Sharks from extinction
dangerous
Skim the passage and choose the best answer.
What type of text is this passage
A. Narration (记叙文)．
B. Argumentation (议论文)．
C. Exposition (说明文)．
D. Prose (散文)．
Objective purpose: Focuses on explaining facts, concepts, or processes.
Clear structure: Uses logical frameworks like time order, cause-effect, or classification, with transition words for coherence.
Precise language: Employs formal, accurate terms; avoids exaggeration. May use technical terms explained via examples or definitions.
Skim the passage and match each paragraph with its main idea.
Para.1 A. Finning kills millions of sharks a year.
Para.2 B. The opening scene from the 1975 film Jaws.
Para.3 C. More people want to protect sharks from extinction.
Para.4 D. Benchley came across an awful sight of dead sharks
and fought to protect sharks.
Para.5 E. Jaws made people more scared of sharks and people
killed as many sharks as they could.
Read the passage and find out how sharks are described in the film Jaws.
Sharks are described in the films as dangerous and bad animals that eat humans.
Read the passage and answer the questions.
1. Why is the film Jaws mentioned at the beginning of the passage
To attract readers with the impressive scene.
To illustrate how Jaws reinforced the idea of sharks as dangerous.
To show how it made people see great white sharks as dangerous, starting the story of human - shark relations change.
It sets up the context for discussing humans’ impact on sharks (like overfishing) later.
Read the passage and answer the questions.
2. Why does the author say “People have always been scared of sharks, but Jaws made things worse.” in para.2 Try to give some details.
Many people who saw the film started to believe that sharks were bad animals that ate humans.
Some people stopped swimming in the sea, afraid of the horrible creature from the film.
Other people started fishing for sharks, killing as many as they could.
Read the passage and answer the questions.
3. According to para.3, besides fear, what other factor led to the rapid drop in the number of large sharks after 1975
Finning is a type of fishing where sharks are caught, their fins cut off, and then the sharks are thrown back into the sea to die slowly and painfully.
Finning. Sharks were caught for their fins to make shark fin soup, which killed millions of sharks yearly.
Read the passage and answer the questions.
4. According to para.4, what made Peter Benchley realize his earlier view of sharks was wrong
5. What can we infer from the fact that only around six people are killed by sharks every year in para.4
Sharks don’t target humans on purpose. Experts prove they attack humans by mistake, so the idea of sharks as dangerous killers hunting humans is inaccurate.
Witnessing the cruel reality of finning and the large number of dead sharks, he understood humans, not sharks, were the real danger.
Read the passage and answer the questions.
6. According to para.4, how did people’s attitude towards sharks differ before and after learning more about them
7. How does the author feel about the future of the sharks
Before, many feared sharks (influenced by Jaws);
After learning more, more people want to protect sharks from extinction.
Optimistic.
Fortunately = Luckily / It is fortunate / lucky that…
1 To criticise Peter Benchley’s misleading description of sharks in his book and advocate the protection of sharks.
2 To explain people’s misunderstanding of sharks and raise awareness of shark protection.
3 To inform people about sharks and recommend the film and the book to them.
Choose the author’s purpose in writing the passage.
Complete the chart showing how attitudes towards sharks have changed with words and expressions from the passage.
as dangerous animals
sharks were bad animals that ate humans
swimming in the sea
fish for sharks
fear of sharks and finning
was wrong about sharks’ behaviour
to protect
sharks do not see people as food
understanding sharks
protect sharks from extinction
Think & share
1. How do you think Peter Benchley felt after diving in 1980
2. What other films or books do you know that feature wild animals Do they “paint” a good or bad picture of these animals Say how the animals are described.
Peter Benchley might feel sad for the sharks being killed; he might feel regretful for depicting the great white shark as a dangerous animal in his book; he might also feel angry about finning.
PART. 04
Language points
What environmental problem does each cartoon refer to
句意：每幅漫画涉及的环境问题是什么？
refer to 提到；涉及，描述；参考；查阅
(1) refer to…as… 把…… 当作……，称…… 为……
refer…to… 把…… 送交给……
(2) reference n. 涉及；参考，查阅
in/with reference to 关于
例题：
With __________ to the project, let’s have a meeting tomorrow.
1
reference
refer to 与 look up 都意为 “查阅”，但用法不同：
refer to + a book/dictionary
look up + sth. + in a book/dictionary
2
People have always been scared of sharks, but Jaws made things worse.
句意：人们一直害怕鲨鱼，而《大白鲨》让情况变得更糟了。
例题：
She’s ________ of snakes, so she never goes to the forest alone.
scared
scared adj. 害怕的，担心的
be scared of (doing) sth. 害怕 / 担心（做）某事
be scared to do sth. 害怕做某事
scare vt. 惊吓，使害怕 vi. 受惊吓，害怕
scare away/off 把…… 吓跑
It scares sb. to do sth. 做某事使某人害怕
3
Finning is a type of fishing where sharks are caught and their fins cut off.
句意：切鳍是一种将鲨鱼捕获之后，割下它们的鱼鳍的捕鱼方式。
例题：
Living in a remote village, they feel cut ______ from the modern world.
off
cut off 切掉，砍掉；使…… 与外界隔绝；停止，中断（电力，通信）
cut away 砍掉，切除
cut back 减少，削减
cut down 砍倒；减少，缩小（尺寸、数量或数目）
cut out 删去
cut up 切碎，剁碎
PART. 05
Exercise
The company's marketing campaign this year t_______ young consumers.
Many species are facing the threat of e_________ because of environmental pollution.
F_________, we arrived at the airport just in time to catch our flight.
The football match was cancelled d_____ to the heavy rain.
The old legend about the haunted house is enough to s_____ away most visitors.
argets
xtinction
ortunately
Exercise: 单词拼写
ue
care
Efforts to protect the pandas have successfully pulled them back from the edge of _________ (extinct).
When writing academic papers, it’s important to make proper ___________ (refer) to reliable sources.
The phone call was suddenly ______ (cutting) off before we could finish our conversation.
My dog gets ________ during thunderstorms and hides under the bed.
extinction
reference
cut
Exercise: 用所给词的适当形式填空
scared
PART. 06
Summary
添加标题
ADD THE TITLE HERE
添加标题
ADD THE TITLE HERE
Starting out & Understanding ideas
Reading
Vocabulary
Grasp the stylistic features of expository texts
Understand the thematic significance of the article and establish the concept of environmental protection
PART. 07
Homework
1.Collect more information on sharks and what you can do to protect them.
2.List some environmental problems and corresponding solutions, and share with classmates how to protect the environment in daily life.
Thanks
Starting out & Understanding ideas
Unit 6
Earth first
CONTENTS
01
Lead-in
02
03
Exercise
05
Learning Objectives
Reading
06
Summary
07
Homework
04
Language points
Learning Objectives
PART. 01
Learning Objectives
Extract and summarize information about sharks from the text, including their endangerment status and the reasons behind it.
Analyze the text structure and argumentative logic to better understand how the author presents and develops the theme.
Master key expressions related to sharks and environmental protection.
Foster an awareness of environmental and animal protection, and be inspired to consider what actions can be taken in daily life to protect sharks and their habitats.
Teaching Focuses and Anticipated Difficulties
Analyze the reasons for sharks' endangerment and misunderstandings about them, and master relevant vocabulary and expressions.
Think critically about the complex relationship between human activities and shark endangerment.
PART. 02
Lead-in
What do you know about World Earth Day
世界地球日（World Earth Day）定于每年 4 月 22 日，起源于 20 世纪 60 年代美国的环保觉醒。1969 年美国参议员盖洛德 尼尔森提议校园环保活动，经哈佛大学学生丹尼斯 海斯推动，1970 年 4 月 22 日首次 “地球日” 吸引 2000 万美国人参与，成为现代环保运动开端。1990 年活动扩展至全球，2009 年联合国大会正式将 4 月 22 日定为 “世界地球日”，使其成为全球性环保行动日。
What can we do to protect the Earth？
Daily Actions
Reduce waste.
Recycle paper, plastic, and glass.
Save energy.
Conserve water.
Sustainable Habits
Choose public transport/bike/walk.
Support eco-friendly products.
Plant trees/grow a garden.
Switch to solar/wind energy.
Watch the video and answer the questions.
Watch the video and answer the questions.
1 Which of the facts in the video do you find most alarming
2 What does the video want to tell us
The most alarming fact I find in the video is that around 150 to 200 species of plants and animals become extinct - nearly 1,000 times the natural rate of extinction.
Severe environmental problems we are facing nowadays make our future uncertain. It’s time for everyone to take action now and make our planet a greener and safer place for our future generations.
Look at the cartoons and answer the questions.
1 What environmental problem does each cartoon refer to
water pollution
deforestation
air pollution
global warming
Look at the cartoons and answer the questions.
2 What are the causes of these problems
water pollution: people drop litter carelessly; industrial waste-water discharge...
deforestation: people cut down trees to make paper...
air pollution: illegal discharge of industrial waste gas...
global warming: heavy use of private cars...
3 What do you think is the most serious environmental problem we face today What should be done to help solve it
I think global warming is the most serious environmental problem we face today.
Promote renewable energy Improve energy efficiency
Reduce fossil fuel use Strengthen carbon capture technology....
PART. 03
Reading
Tick the words that you would use to describe sharks. Add any more you can think of.
dangerous
powerful
endangered
interesting
man-eating
terrifying
cute
intelligent
huge
flexible
fierce
sharp teeth
Have you ever seen the movie Jaws or other films about wild animals
Jaws is a classic（经典的） 1975 thriller（惊悚片） by Steven Spielberg. Set in a U.S. seaside town（海滨小镇）, it tells of a huge man-eating（食人（的）） great white shark attacking beachgoers（去海滩的人）. A police chief（警察局长）, a marine biologist（海洋生物学家）, and a shark hunter（捕鲨人） join forces（联手；合力） to stop it. Tense（紧张的） and exciting, it’s famous for its suspense（悬念） and iconic（标志性的） shark scenes.
Make predictions according to the title.
What does the title Sharks: Dangerous or Endangered mean
On one hand, it notes the common view of sharks as "dangerous".
On the other hand, it notes that many shark species are "endangered" due to overfishing, habitat loss, and climate change.
Skim the passage and Fill in the following chart.
Sharks:
Dangerous of Endangered
Para.____ + Para.____
____________
Para.____ + Para. 4
_____________
Para. 5
More people want to
___________________________.
1
2
3
endangered
protect Sharks from extinction
dangerous
Skim the passage and choose the best answer.
What type of text is this passage
A. Narration (记叙文)．
B. Argumentation (议论文)．
C. Exposition (说明文)．
D. Prose (散文)．
Objective purpose: Focuses on explaining facts, concepts, or processes.
Clear structure: Uses logical frameworks like time order, cause-effect, or classification, with transition words for coherence.
Precise language: Employs formal, accurate terms; avoids exaggeration. May use technical terms explained via examples or definitions.
Skim the passage and match each paragraph with its main idea.
Para.1 A. Finning kills millions of sharks a year.
Para.2 B. The opening scene from the 1975 film Jaws.
Para.3 C. More people want to protect sharks from extinction.
Para.4 D. Benchley came across an awful sight of dead sharks
and fought to protect sharks.
Para.5 E. Jaws made people more scared of sharks and people
killed as many sharks as they could.
Read the passage and find out how sharks are described in the film Jaws.
Sharks are described in the films as dangerous and bad animals that eat humans.
Read the passage and answer the questions.
1. Why is the film Jaws mentioned at the beginning of the passage
To attract readers with the impressive scene.
To illustrate how Jaws reinforced the idea of sharks as dangerous.
To show how it made people see great white sharks as dangerous, starting the story of human - shark relations change.
It sets up the context for discussing humans’ impact on sharks (like overfishing) later.
Read the passage and answer the questions.
2. Why does the author say “People have always been scared of sharks, but Jaws made things worse.” in para.2 Try to give some details.
Many people who saw the film started to believe that sharks were bad animals that ate humans.
Some people stopped swimming in the sea, afraid of the horrible creature from the film.
Other people started fishing for sharks, killing as many as they could.
Read the passage and answer the questions.
3. According to para.3, besides fear, what other factor led to the rapid drop in the number of large sharks after 1975
Finning is a type of fishing where sharks are caught, their fins cut off, and then the sharks are thrown back into the sea to die slowly and painfully.
Finning. Sharks were caught for their fins to make shark fin soup, which killed millions of sharks yearly.
Read the passage and answer the questions.
4. According to para.4, what made Peter Benchley realize his earlier view of sharks was wrong
5. What can we infer from the fact that only around six people are killed by sharks every year in para.4
Sharks don’t target humans on purpose. Experts prove they attack humans by mistake, so the idea of sharks as dangerous killers hunting humans is inaccurate.
Witnessing the cruel reality of finning and the large number of dead sharks, he understood humans, not sharks, were the real danger.
Read the passage and answer the questions.
6. According to para.4, how did people’s attitude towards sharks differ before and after learning more about them
7. How does the author feel about the future of the sharks
Before, many feared sharks (influenced by Jaws);
After learning more, more people want to protect sharks from extinction.
Optimistic.
Fortunately = Luckily / It is fortunate / lucky that…
1 To criticise Peter Benchley’s misleading description of sharks in his book and advocate the protection of sharks.
2 To explain people’s misunderstanding of sharks and raise awareness of shark protection.
3 To inform people about sharks and recommend the film and the book to them.
Choose the author’s purpose in writing the passage.
Complete the chart showing how attitudes towards sharks have changed with words and expressions from the passage.
as dangerous animals
sharks were bad animals that ate humans
swimming in the sea
fish for sharks
fear of sharks and finning
was wrong about sharks’ behaviour
to protect
sharks do not see people as food
understanding sharks
protect sharks from extinction
Think & share
1. How do you think Peter Benchley felt after diving in 1980
2. What other films or books do you know that feature wild animals Do they “paint” a good or bad picture of these animals Say how the animals are described.
Peter Benchley might feel sad for the sharks being killed; he might feel regretful for depicting the great white shark as a dangerous animal in his book; he might also feel angry about finning.
PART. 04
Language points
What environmental problem does each cartoon refer to
句意：每幅漫画涉及的环境问题是什么？
refer to 提到；涉及，描述；参考；查阅
(1) refer to…as… 把…… 当作……，称…… 为……
refer…to… 把…… 送交给……
(2) reference n. 涉及；参考，查阅
in/with reference to 关于
例题：
With __________ to the project, let’s have a meeting tomorrow.
1
reference
refer to 与 look up 都意为 “查阅”，但用法不同：
refer to + a book/dictionary
look up + sth. + in a book/dictionary
2
People have always been scared of sharks, but Jaws made things worse.
句意：人们一直害怕鲨鱼，而《大白鲨》让情况变得更糟了。
例题：
She’s ________ of snakes, so she never goes to the forest alone.
scared
scared adj. 害怕的，担心的
be scared of (doing) sth. 害怕 / 担心（做）某事
be scared to do sth. 害怕做某事
scare vt. 惊吓，使害怕 vi. 受惊吓，害怕
scare away/off 把…… 吓跑
It scares sb. to do sth. 做某事使某人害怕
3
Finning is a type of fishing where sharks are caught and their fins cut off.
句意：切鳍是一种将鲨鱼捕获之后，割下它们的鱼鳍的捕鱼方式。
例题：
Living in a remote village, they feel cut ______ from the modern world.
off
cut off 切掉，砍掉；使…… 与外界隔绝；停止，中断（电力，通信）
cut away 砍掉，切除
cut back 减少，削减
cut down 砍倒；减少，缩小（尺寸、数量或数目）
cut out 删去
cut up 切碎，剁碎
PART. 05
Exercise
The company's marketing campaign this year t_______ young consumers.
Many species are facing the threat of e_________ because of environmental pollution.
F_________, we arrived at the airport just in time to catch our flight.
The football match was cancelled d_____ to the heavy rain.
The old legend about the haunted house is enough to s_____ away most visitors.
argets
xtinction
ortunately
Exercise: 单词拼写
ue
care
Efforts to protect the pandas have successfully pulled them back from the edge of _________ (extinct).
When writing academic papers, it’s important to make proper ___________ (refer) to reliable sources.
The phone call was suddenly ______ (cutting) off before we could finish our conversation.
My dog gets ________ during thunderstorms and hides under the bed.
extinction
reference
cut
Exercise: 用所给词的适当形式填空
scared
PART. 06
Summary
添加标题
ADD THE TITLE HERE
添加标题
ADD THE TITLE HERE
Starting out & Understanding ideas
Reading
Vocabulary
Grasp the stylistic features of expository texts
Understand the thematic significance of the article and establish the concept of environmental protection
PART. 07
Homework
1.Collect more information on sharks and what you can do to protect them.
2.List some environmental problems and corresponding solutions, and share with classmates how to protect the environment in daily life.
Thanks