人教版(2019)选择性必修第三册UNIT 3 Environmental Protection Reading and Thinking课件(共43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43张PPT)
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科目 英语
更新时间 2023-11-06 14:26:12

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(共43张PPT)
UNIT 3
Section A Reading and Thinking
Part 1 Reading comprehension
Part 2 Language points
目录索引
素养导航·明目标
语言 能力 必背 单词 starve   ecology   release   carbon   sustain
fuel comprehensive trend frequently broadcast
policy restrict restriction seize basin
reform harmonious submit annual chaos
nuclear sensitive jungle smog volume
garbage enterprise restore conservation dozen
inspection fine campaign tolerate agenda
语言 能力 重点短语 carbon dioxide    fossil fuel     on behalf of
dozens of have an impact on in search of
contribute to end up
重点句式 1.there is no/little doubt that...毫无疑问……
2.not only...but also...不但……而且……
3.“with+宾语+宾语补足语”结构
4.now that引导的原因状语从句
核心语法 直接引语与间接引语
主题写作 关于环境问题的报告
文化 意识 1.了解气候变化给不同国家和地区的人们的生活和生产带来的影响。
2.理解环境问题是需要全球共同面对和携手解决的问题,有意识地培养人类命运共同体意识,节约地球资源,保护地球家园。
思维 品质 能够根据数据图表分析气候变化的趋势,找到问题产生的源头与解决问题的对策;能够识别身边的环境问题,运用所学知识提出解决方案,增强解决实际问题的意识和能力。
学习 能力 1.能够厘清事物发生的因果关系,制作流程图和思维导图来表达这种关系。
2.能够积累、辨析和运用同(近)义词汇,构建词汇网络,丰富词汇库。
Part 1 Reading comprehension
第一步 速读课文 理清脉络
Activity 1 What does the text mainly tell us
A.The news of a dead polar bear.
B.Climate change and its causes.
C.Climate change and natural disasters.
D.Greenhouse gas emissions and climate.
B
Activity 2 Read the text again and match each paragraph with its main idea.
1.Para.1 A.The two common meanings of the “greenhouse effect”.
2.Para.2 B.Evidence of a dramatic change in the global climate.
3.Para.3 C.The impact global warming had on Earth’s ecology.
4.Para.4 D.Evidence of global warming leading to extreme weather and disasters.
5.Para.5 E.Both governments and individuals should take measures to reduce greenhouse gas emissions.
第二步 精读课文 领悟细节
Activity 3 Read the text carefully and choose the best answer.
1.What directly caused the death of the polar bear mentioned in paragraph 2
A.Extreme coldness.
B.Changeable weather.
C.Lack of food.
D.Low sea levels.
C
2.How does the “natural” greenhouse effect work
①Heat is sent back to Earth.
②The sun gives Earth heat through the atmosphere.
③Earth’s surface becomes warm.
④Greenhouse gases trap some heat.
A.①→②→③→④  
B.②→③→①→④
C.②→①→④→③
D.④→②→③→①
B
3.Why do the climate scientists give a warning
A.Because they don’t want to find more dead animals.
B.Because news reports deal with climate change wrongly.
C.Because climate change has brought disasters.
D.Because they have found more evidence.
4.What is the purpose of the last paragraph
A.To show us the bad effects of global warming.
B.To explain the meaning of the “carbon footprint”.
C.To tell us to prevent disasters from happening.
D.To call on us to do our bit to protect our planet.
C
D
Activity 4 思考分享 提升思维
1.Has climate change affected your life,how
2.What should we do in our daily life to deal with climate change
The answer is open. 
The answer is open. 
Activity 5 诵读佳句 学练写作
1.Read the passage carefully and find the sentence(s) describing the impact of global warming.
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.
2.Read the passage carefully and find the sentence(s) describing what should be done to deal with global warming.
(1)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.
(2)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.
第三步 深读课文 融会提能
Activity 6 课文语篇填空
In recent years,climate change has had a great impact 1.     the animals.In 2013,the whole world was 2.       (shock) at a news photo of a dead polar bear on Norway’s Arctic island of Svalbard.Due to the increase in temperature,the polar bear seemed to have died from lack of food.
on
shocked 
According to climate scientists,a key climate process,3.      is called the “greenhouse effect”,includes the “natural” greenhouse effect and the “man-made” greenhouse effect.The former refers to the fact that heat from the sun 4.     (enter) the atmosphere and warms Earth’s surface. Greenhouse gases in the atmosphere trap some of the heat,5.      (keep) Earth’s climate warm and habitable.However,the latter has become 6._______      big problem.When people burn fossil fuels,more heat energy 7.____________       (trap) in the atmosphere and causes Earth’s surface temperature to rise quickly.
which 
enters
keeping
a
is trapped 
The 8.      (evident) shows that the rise in temperature has led to an increase in extreme weather and natural disasters worldwide.Climate scientists warn that this warming trend will become 9.      (bad) if we do not take appropriate measures.The severe situation requires people all over the world 10.        (pay) more attention to it,because this is the most serious issue affecting all of us on this planet.
evidence
worse
to pay
Activity 7 长难句分析
引导宾语从句
1.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.     
        宾语从句
目的状语
[尝试翻译]
动词-ed形式短语作定语
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。
2.           主句 同位语从句
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.

动词-ing形式短语作结果状语
[尝试翻译]
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。
Part 2 Language points
基础落实 必备知识全过关
Ⅰ.重点单词
必记写作词汇
1.       n.图;图表;曲线图
2.       vt.& vi.(使)融化;熔化;软化
3.       n.生态;生态学
4.       n.排放;释放;发布
5.       n.燃料;刺激性言行
6.       adj.全部的;所有的;详尽的
graph 
melt 
ecology 
release 
fuel 
comprehensive
7.       adv.遍及全球地 adj.世界各地的;影响全世界的
8.       n.趋势;趋向;动向
9.       vt.& vi.播送;广播;传播 n.广播节目;电视节目
10.       n.政策;方针;原则
11.       n.足迹;(某物所占的)空间量;面积
12.       vt.抓住;夺取;控制
worldwide 
trend 
broadcast 
policy 
footprint
seize
识记阅读词汇
1.emission n.         
2.seal n.         
3.methane n.         
4.carbon n.         
5.dioxide n.         
6.fossil n.         
排放物;散发物;排放 
海豹 
甲烷;沼气 
碳 
二氧化物 
化石
串记拓展词汇
1.       vt.& vi.(使)挨饿;饿死→       n.饿死
2.      adj.适合居住的→      n.栖息地
3.       vt.维持;遭受;承受住→       adj.可持续的;合理利用的→sustainability n.持续性;能维持性
4.       adv.频繁地;经常→       adj.频繁的;时常发生的→frequency 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
starve
starvation 
habitable
habitat 
sustain
sustainable
frequently
frequent 
restrict
restriction
restricted
【掌握构词规律 快速记牢单词】
-cy结尾的名词
fluent →fluency频率;频繁
consistent→consistency一致性,一惯性
delicate→delicacy优雅,精巧
accurate→accuracy精确,准确
Ⅱ.重点短语
1.           抓住机遇
2.         为……负责
3.         和……一起
4.         对……有影响
5.         提到;参考
6.be trapped in          
7.result in        
8.take measures        
9.carbon dioxide        
10.fossil fuel         
seize the opportunity 
take responsibility for
along with 
have an impact on 
refer to 
被困在
导致 
采取措施 
二氧化碳 
化石燃料(如煤或石油)
要点探究 能力素养全提升
基础词汇——语境记忆
1.trend n.趋势;趋向;动向
【佳句背诵】There are two key factors behind this trend.[事件介绍]
这一趋势背后有两个关键因素。
2.broadcast vt.& vi.(broadcast,broadcast) 播送;广播;传播 n.广播节目;电视节目
【佳句背诵】The concert will be broadcast live tomorrow evening.
[活动安排]
音乐会明晚将现场直播。
高频词汇——讲练互动
1.starve vt.& vi.(使)挨饿;饿死
(1)starve to death 饿死
starve for sth 渴望获得某物
starve sb out 用饥饿迫使某人屈服
starve...of/for sth 使……得不到某物
starve sb into (doing) sth 使某人因饥饿而做某事
(2)starvation n.饥饿
【佳句背诵】When the two men entered the deserted island,they got lost and almost starved to death.[人物介绍]
那两个人到了一个荒芜的岛上,迷路了,几乎被饿死。
【即学即练】单句语法填空/句型转换
①The policemen surrounded the woods in order to starve the murderer
     coming out.
②Tim starved      a laptop,but his parents asked him to earn money and buy one by himself.
③The poor child is eager to have a warm room to sleep in.
→The poor child      for a warm room to sleep in.
into
for 
starves
2.release vt.& n.排放;释放;发布
(1)release sb from... 把某人从……释放(解救)出来
(2)release sth into... 把……排放入……
(3)on release 发行
【佳句背诵】Many factories pour untreated water into rivers directly,and release poisonous gas into the air,which causes acid rain.[环境保护]
许多工厂将未经处理的水直接注入河流,并向空气中释放有毒气体,导致
酸雨。
【即学即练】单句语法填空/词汇升级
①He was released      the hospital yesterday.
②With 10,000 balloons released      the air,the graduation ceremony began.
③It took the firefighters two hours to save the driver from the wreckage.
→The firefighters spent two hours      the driver from the wreckage.
from 
into
releasing
3.restrict vt.限制;限定;束缚
(1)restrict...to... 把……限制在……
(2)restriction n.限制规定;限制法规;约束
without restriction 无限制地
(3)restrictive adj.限制(性)的;约束(性)的
【佳句背诵】In future we will restrict class sizes to 20 students.[学校生活]
将来我们将把班级人数限制在20名。
【即学即练】单句语法填空/一句多译
①Many schools place a strict       (restrict) on students’ clothes.
②As a youngster,she might have found it too        (restrict),not creative enough.
③我想买那种可以到处旅游、不受限制的票。
→I want to buy such kinds of tickets which don’t_________ _________ _________ _________.(restrict)
→I want to buy such kinds of tickets which allow me to travel anywhere _________ _________.(restriction)
restriction 
restrictive 
restrict me
to travelling
without restriction
4.seize vt.抓住;夺取;控制
(1)seize sth from... 从……抓取/夺取某物
(2)seize a chance/an opportunity 抓住机会/机遇
(3)seize sb by the+身体部位 抓住某人……
(4)be seized with 被(强烈的情感、愿望等)影响
【佳句背诵】In my opinion,only by facing difficulties bravely and seizing opportunities can one succeed.[观点看法]
在我看来,一个人只有勇敢地面对困难,抓住机遇,才能成功。
【即学即练】单句语法填空/句型转换
①I seized him       the arm and made him turn to look at me.
②I was suddenly seized        a feeling of great insecurity and loneliness.
③We won’t miss the opportunity to study further.
→Please _________ _________ __________ to study further.
by
with
seize the opportunity
多义词汇——自主练透
Ⅰ.一词多义
1.sustain
A.v.维持 B.v.遭受;承受
①Every aircraft in there has sustained some damage.  
②The problem was how to get enough food to sustain life.  
2.comprehensive
A.adj.全部的;所有的 B.adj.详尽的
①The reporter has made a comprehensive report.  
②The students were doing a comprehensive review of the term’s work.  
B
A
B
A
Ⅱ.教材熟词生义
fuel
项目 意义 例句
熟义 n.         The factories shut down for want of fuel and materials.
生义 n.        His remarks simply added fuel to the fire.
燃料
刺激性言行
重点句式——多维剖析
1.there is no/little doubt that...毫无疑问……
【教材原句】There is little doubt that Earth is getting warmer and warmer (see the graph).
毫无疑问,地球正变得越来越温暖(如图)。
(1)have doubt about/whether... 怀疑……
have no doubt about/that... 不怀疑……
I doubt whether/if/when/where(等疑问词)...我怀疑……
I don’t doubt that.../Do you doubt that... 我不怀疑……/你怀疑……吗
without doubt=beyond doubt毫无疑问;一定地
(2)doubtful 感到怀疑的;不肯定的;不大可能的
【佳句背诵】There is no doubt that your participation will make our outing more enjoyable.[邀请信]
毫无疑问,你的参与会使我们的出游更加愉快。
【即学即练】单句语法填空/句式升级
①I don’t doubt      he can finish the task on time.
②Actually,the officer doubted      his soldiers could refresh themselves in so short a time.
③I don’t doubt that paper-cutting is one of traditional Chinese cultures.
→_________ _________ _________ _________ _________paper-cutting is one of traditional Chinese cultures.(升级为含有同位语从句的句子)
→I _________ _________ _________ that paper-cutting is one of traditional Chinese cultures.(升级为doubt作宾语的句子)
that
if/whether
There is no doubt that
have no doubt
2.without与虚拟语气的连用
【教材原句】Without this process,Earth could not sustain life.
如果没有这一过程,地球就无法维系生命。
(1)在虚拟结构中,如果表示与现在或将来事实相反的假设,则句子谓语用would/should/could/might+do;如果与过去事实相反的假设,则句子谓语用would/should/could/might+have done。
(2)类似用法的还有otherwise,or,but for,but,分词结构,独立主格结构等。
【佳句背诵】Without your help,I wouldn’t have made such great progress in my spoken English.[表达感激]
如果没有你的帮助,我的英语口语就不会有这么大的进步。
【即学即练】单句语法填空/一句多译
①We lost our way in that small village,otherwise we____________________             (visit) more places of interest yesterday.
②假如没有我父母的支持,我可能已经彻底垮掉了。但我还是坚持了下来。
→If it ________ ________ ________ ________ the support of my parents,I would have probably cracked up completely.But I managed to hang on.
→ _________ _________ _________ of my parents I would have probably cracked up completely.But I managed to hang on.
would have visited
had not been for
Without the support
本 课 结 束