人教版（2019）选择性必修 第三册Unit 3 Environmental Protection Language Points 课件(共27张PPT)

(共27张PPT)
Unit 3
Environmental Protection
Reading and Thinking
& Language Points
课前准备：课本，学案。积累本，双色笔
Earth provides enough to satisfy
every man’s needs, but not
every man’s greed.
— Mohandas K. Gandhi
2019新人教版
Quick Reading
1 ____________________正在融化的冰
2 ____________________为……提供依据/证据
3 ____________________急剧变化
4 ____________________皮包骨
5 ____________________吸收热量
6 ____________________维系生命
7 ____________________大量的
8 ____________________化石燃料
9 ____________________付出巨大的代价
10 ____________________持久的变化
11 ____________________制定政策
12 ____________________抓住机会
13 ____________________规划；安排
14 ____________________因果
melting ice
provide evidence of
a dramatic change
skin and bones
trap the heat
sustain life
huge amounts of
fossil fuels
pay a high price
long-lasting changes
make policies
seize the opportunity
map out
cause and effect
1.__________ vi.& vt.(使)挨饿；饿死→__________ n.饿死→__________ adj.极饿的
2. __________adj.适合居住的→ __________adj.不适宜居住的
3. __________vt.维持； 遭受； 承受住→___________ adj.可持续的；合理利用的→_____________ n.持续性； 能维持性
4. __________adj.频繁的；时常发生的 v.常去，常到→__________ adv.频繁地；经常→__________ n.频率；频繁
5. __________vt.限制； 限定；束缚→__________ n.限制规定；限制法规；约束→__________ adj.受限制的
6. __________n.协调；和睦；融洽→ __________adj.和谐的
7. __________adj.适度的；中等的；温和的 vi.& vt.缓和；使适中→__________n.适度；适中；合理
8. __________vt.& vi.提交；呈递；屈服→__________ n.提交(物)；呈递(书)；屈服
9. __________adj.每年的；一年的 n.年刊；年鉴→__________ adv.每年地
10. __________n.烟雾(烟与雾混合的空气污染物)→__________ adj.烟雾弥漫的
11. __________n.起源；源头；起因→ __________adj.最初的；原始的→__________ adv.最初；起初→v__________i.& vt.起源；发源；创立
Prep for reading
starve
starvation
starving
habitable
inhabitable
sustain
sustainable
sustainability
frequent
frequently
frequency
restrict
restriction
restricted
harmony
harmonious
moderate
moderation
submit
submission
annual
annually
smog
smoggy
origin
original
originally
originate
Quick Reading
1．根据首字母或者汉语意思完成句子.
1. Many ________ (改革) must be made to the education system.
2. If you _________(抓住) something, you take hold of it quickly, firmly, and forcefully.
3. He has displayed remarkable courage in his efforts to ________ (改革) the company.
4. Last week, Cfius issued its _______ (年度的) report for actions in 2014.
5. A shuttle bus runs __________(频繁地) between the inn and the country club.
6. Millions of people in this area ______ (挨饿) to death after a big earthquake.
The document film ______________ (发布;排放) next week aims at introducing local
cultures to the world.
Tiger witnesses the efforts of the Chinese people in the _____________（和谐的
coexistence of man and nature.
9. If we need to give negative feedback, we should do it in a less direct manner, especially to those who are shy or ________ (敏感的).
reforms
seize
reform
annual
frequently
starved
to be released
harmonious
sensitive
Quick Reading
1．根据首字母或者汉语意思完成句子.
10. Coal and gas are traditional ________(燃料), but they bring lots of side effects too.
11. It is universally acknowledged that it is illegal to_________(限制) people’s freedom.
12. The concert will be ________ (播出)live.
pleted projects must be __________ (呈递，提交) by10 May.
14. This __________(企业) is now developing steadily and should soon get profits.
15. I couldn’t understand why all I got was_________________(垃圾).
fuels
restrict
broadcast
submitted
enterprise
garbage/rubbish
Before you read, discuss these questions in pairs.
What do you know from the footage
What contributes to the extinction of the polar bears
Prep for Reading
stark 【严峻的】a future tipping point 【未来的临界点】
fatten up 【长肥】a fasting season 【斋戒季节】be at stake 【处于危险中】 trajectory 【抛物线；弹道】halt 【阻止】 play out 【显现】
Prep for Writing
Before you read, look at the graph and the picture on Page 26 and discuss these questions in groups.
What is the graph about What information
can you get from it
The graph shows 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.
What do you think may have caused the global
temperature rise
It is important to note that while there is scientific
consensus on the role of human activities in global
temperature rise, the exact contributions of each
factor may vary. Ongoing research and monitoring
are crucial to better understand and address the complex issue of global warming.
Quick Reading
1．Read the text and sum up the main idea of each paragraph.
Global climate is changing dramatically.
Paragraph 1
An alarming case about a bear starved to death
Paragraph 2
What is causing the increase in the global average surface temperature
Paragraph 3
The destruction of the rise in temperature and the warning
Paragraph 4
Further possible changes to the global climate and our duty
Paragraph 5
Quick Reading
1．Skim the title and the passage quickly.
1. What's the type of this text
A. News report. B. Biography.
C. Expository essay. D. Argumentation.
2. In which part of a newspaper or magazine may we find this passage
A. Entertainment B. Economy
C. Education D. Environment
3. The evidence of the global climate change doesn’t include 　　　　 .
A. warming ocean and atmosphere B. melting ice and rising sea levels
C. more polar bears and seals D. extreme rainstorms and heatwaves
4. Which of the following is TRUE according to the passage
A. The “man-made” greenhouse gases can be produced by burning fossil fuels.
B. The global warming is a random rather than natural phenomenon.
C. The temperature in the last century increased by as high as 5 degrees.
D. Fewer greenhouse gases will gather in the atmosphere.
Quick Reading
1．Skim the title and the passage quickly.
4. Why is the “natural” greenhouse effect important and necessary
A. Because it is short-wave radiation. B. Because it is long-wave radiation.
C. Because it releases more heat. D. Because it helps Earth to sustain life.
5. Why did the author mention the climate scientists 'warning
A. To stress the importance of the news report.
B. To provide evidence of rising temperature.
C. To call on people to take actions to stop the warming trend.
D. To show people climate change in details.
6. (5)The author probably agrees that _________.
A. actually global warming is good for man
B. we should do nothing about the global warming
C. catastrophes will not happen if the globe keeps on warming
D. governments need to take appropriate measures to reduce greenhouse gas emissions
Quick Reading
II. Match the underlined parts with what they refer to
1. This alarming case showed how the increase in temperature had an impact on Earth’s ecology A. The “ natural" greenhouse effect
2. Without this process, Earth could not sustain life. B. A dead polar bear being found on Norway’s Arctic island of Svalbard
3. This requires the attention of people all over the world. C. Continued green house gas emission resulting in further warming and long-lasting changes to the lobal climate
Quick Reading
2．Comb the structure of the passage.
The problem: Earth is getting l._________________.
A case: A polar bear Was starved to 2. ______because of failing to hunt seals.
The reason: The "3. _______________".
The result: More extreme weather and natural 4._______ worldwide.
The conclusion: The global climate change requires the 5. ________of people all over the world.
CLIMATE CHANGE REQUIRES THE WORLD' SATTENTION
warmer and warmer
death
greenhouse effect
disasters
attention
Careful Reading
2．Read the text and answer the questions:
1. What is the evidence of global warming
Warming ocean and atmosphere; melting and rising sea level; the starved polar
animals; the extreme weather and natural disasters
2. Why is the “natural ”greenhouse effect important and necessary
Because greenhouse gases trap heat and keeps the earth warm and habitable.
3. What are the consequence of high greenhouse gas emissions
People produce huge amounts of extra greenhouse gases and more heat energy is
trapped, causing the temperature to go up.
4.Why did the author mention the climate scientists’ warning
Because the writer wants to warn us of the urgency of taking appropriate actions
to tackle the issue.
5.What is the author’s purpose of writing the text
To arouse our awareness of the problem of the rise of temperature and taking proper
actions to address the global warming.
After Reading
2．Read the text and answer the questions:.
7. What do you think governments should do to deal with global warming？
　 （1）Governments need to make some policies to reduce energy waste and greenhouse gas emissions. 　
　 （2）They should develop more renewable resources and advocate
a low-carbon lifestyle.　
8. What should we as individuals do to help stop global warming？
Individuals can change their behaviour and try to reduce their carbon footprint， such as
（1）Walk or ride a bike instead of taking a car whenever possible. 　
（2）Plant more trees and reduce energy consumption.　
（3）Turn off the electric equipment when we don’t use it.　
（4）Save water and use renewable energy.　
There is little doubt that Earth is getting warmer and warmer. In 2013， many people 1. 　 　 （shock） by a news photo of a dead polar bear which appeared to have starved and died. Experts claimed that low sea-ice levels 2. 　 　 （cause） by climate change meant the bear could not hunt seals as before， so it had to travel greater distances 3. 　 （find） food. Then what is causing the increase in the global average surface temperature？Climate scientists often mention a key climate process called the “greenhouse effect”， 4. 　 has two common meanings：the “natural” greenhouse effect and the “man-made” greenhouse effect. The “man-made” greenhouse effect has now become 5. 　 big problem. There is strong and comprehensive evidence 6. 　 the rise in temperature has led to an increase in extreme weather and natural disasters worldwide. In fact， news reports are 7. 　 （frequent） broadcast about extreme rainstorms and heatwaves 8. 　 　 （cause） deaths and economic losses. 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. We as individuals can reduce our “carbon footprint” by 9. 　 　 （restrict） the amount of carbon dioxide our lifestyles produce. It is our responsibility 10. 　 （seize） every opportunity to educate everyone about global warming.
Summary
were shocked　
caused　
to find　
which　
frequently　
causing　
restricting　
seize　
a　
that　
词汇精讲
1. 同位语从句
There is little doubt that Earth is getting warmer and warmer.
There is little doubt... 几乎没有疑问的是……
There is no doubt that... 毫无疑问的是……
There is some doubt about sth. 对……值得怀疑
注意：doubt前有否定意义的词修饰时，其后的同位语从句由that引导；
doubt前有肯定意义的词修饰时，其后的同位语从句由whether或if引导。
【典型例句】
The “natural” greenhouse effect refers to the fact _____ heat from the sun enters the atmosphere and warms Earth’s surface as short-wave radiation. (P26 ~ P27)
同位语从句：大多由从属连词_____引导,常常跟在order, report, wish, decision, suggestion, belief, doubt, fact, hope, message, news等抽象名词的____，一般用来解释或说明这些名词的具体含义或内容。
that
that
后面
词汇精讲
【小试牛刀】
1. They expressed the hope _______ they would come over to China soon.
2. Word has come _______ some American guests will come to our college for a visit next week.
3. He can’t answer the question _______ he got the money from his home yesterday.
4. Do you have any idea _______ is actually going on in the classroom
5. The problem ________ we should have the meeting in the hall now must be decided at once.
that
that
how
what
whether
词汇精讲
2. A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate. (P26)
海洋和大气变暖，以及冰层融化、海平面上升，都为全球气候急剧变化提供了依据。
【句式分析】
along with 连接前后两个主语时，谓语动词应和前面那个主语保持一致。
【小试牛刀】
1. A library with five thousand books _________ (offer) to the nation as a gift.
2. All but one _____ (be) here just now.
3. WeChat, as well as Ding Talk, __________ (play) an important part in daily communication nowadays.
is offered
were
is playing
词汇精讲
3. That 引导定语从句
【原句回顾】
According to the scientists who found its dead body, all that remained of the polar bear was “skin and bones”.
句意：根据发现北极熊尸体的科学家的说法，这只北极熊只剩下了“皮和骨头”。
1. She and her family bicycle to work, _________ helps them keep fit.
2. Kae, ________ sister I shared a room with when we were at college, has gone to work in Australia.
3. Self-driving is an area ________ China and the rest of the world are on the same starting line.
4. The little problems _____we meet in our daily lives may be inspirations for great inventions.
5. In 1963 the UN set up the World Food Programme, one of _________ purposes is to relieve worldwide starvation.
which
whose
where
whose
that
词汇精讲
4 starve vi.& vt.(使)挨饿；饿死→starvation n.饥饿；饿死→starving adj.极饿的
【用法归纳】　
starve to death 饿死
be starving for sth 渴望某物
be starving to do sth渴望做某事
die of/from starvation 饿死
【学以致用】　单句语法填空/补全句子
①What shocked the scientists was that many seals died from __________(starve) because they couldn’t find enough food to eat.
②I ______________ study English well，because mastering English means we can see the world through a new window.
我渴望学好英语，因为掌握英语意味着我们可以通过一个新窗口看世界。
starvation,
am starving to
词汇精讲
5. seize vt.抓住；夺取；控制； 理解
【用法归纳】　
seize sb by the arm抓住某人的胳膊
seize a chance/an opportunity抓住机会
表情感的名词＋seize sb＝sb be seized with/by＋表情感的名词，表示“某人感到……”
【学以致用】　猜测词义/补全句子
①Jane was quick to seize the meaning of what the teacher said at the meeting. Vt._________
②Given that you don’t get along well with oral English，___________________________________________________________________.(建议信)
鉴于你口语不好，我强烈建议你抓住每个机会说英语。
③The moment I saw my father’s cloudy face，______________________________________.
我一看到父亲阴云密布的脸，就感到恐惧。
答案 理解, I strongly suggest that you (should) seize every chance to speak English, panic seized me/I was seized with/by panic
I strongly suggest that you (should) seize every chance to speak English
panic seized me/I was seized with/by panic
理解
词汇精讲
6.submit vt.& vi.提交；呈递；屈服→submission n.提交(物)；呈递(书)；屈服
【用法归纳】　
submit sth to sb 将某物提交给某人
submit (oneself) to 屈从于……
【学以致用】　单句语法填空/补全句子
①In spite of challenges and hardships in my daily life，I decline to submit ________ them.
②And __________________________________ Englishcorner@ before May 30，2023.　
记得在2023年5月30日前将你的论文提交到Englishcorner@。
to
remember to submit your essay(s) to
词汇精讲
7.on behalf of sb代表(代替)某人
【用法归纳】　
on one’s behalf代表某人
represent sb代表某人
stand for代表，象征
【学以致用】　一句多译
代表学生会，我写信邀请您下周三下午3点到5点给我们做讲座。(邀请信)
__________________________________________________________________________________________
__________________________________________________________________________________________
→On behalf of the Student Union，I’m writing to invite you to give us a lecture from 3：00 pm to 5：00 pm next Wednesday.
→Representing the Student Union，I’m writing to invite you to give us a lecture from 3：00 pm to 5：00 pm next Wednesday.
词汇精讲
8. 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.
专家称，气候变化导致的海冰面降低意味着北极熊无法像以前那样捕食海豹，于是它只能长途跋涉去寻找食物。
【句式分析】
caused by climate change 在句中作____________。
【学以致用】
Prices of daily goods __________ (buy) through a computer can be lower than store prices.
The prize of the game show is $30,000 and an all-expense- ______ (pay) vacation to China.
The disco, digitally recorded in the studio, ________ (sound) fantastic at the party now.
后置定语
bought
paid
sounds
词汇精讲
9. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat, keeping Earth’s climate warm and habitable.
大气层中甲烷、二氧化碳等温室气体吸收了部分热量，从而使地球保持气候温暖、适宜居住。
【句式分析】
v-ing 短语在句子中作__________。
【学以致用】
___________ (consider) the reasons mentioned above, we should take effective measures to protect our environment.
The leader stayed up all night, _________ (think) of what to do the next day.
____________________ (not receive) her reply, he decided to send another e-mail to her.
结果状语
Considering
thinking
Not having received
词汇精讲
10. 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.
确凿、全面的证据表明，温度上升导致全球极端天气和自然灾害增多，不仅造成严重破坏，而且使人丧命。
【句式分析】
[构词法]“-wide”表示 “……范围内的（地）”
statewide _________________
countrywide _______________
industrywide _______________
全州范围内的（地）
全国性的
全行业的
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