人教版（2019）选择性必修第三册Unit 3 Environmental Protection Reading and Thinking课件（共18张ppt）
文档属性
| 名称 | 人教版（2019）选择性必修第三册Unit 3 Environmental Protection Reading and Thinking课件（共18张ppt） |
|
|
| 格式 | pptx | ||
| 文件大小 | 4.7MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2024-03-18 00:00:00 | ||
图片预览
文档简介
(共18张PPT)
Unit 3
课文
graph n. 图；图表；曲线图
emission n. 排放物；散发物；排放
melt vi. & vt.(使)融化；熔化；
starve vi. & vt.(使)挨饿；饿死
seal n. 海豹
ecology n. 生态；生态学
release vt. &n. 排放；释放；发布
methane n. 甲烷；沼气
carbon n. 碳
dioxide n. 二氧化物
carbon dioxide 二氧化碳
habitable adj. 适合居住的
sustain vt. 维持；遭受；承受住
sustainable adj. 可持续的；合理利用的
Paras 1-2
1. know about
2. for decades
3. There is no doubt that...
4. melting ice
5. provide evidence of
6. a dramatic change
7. be shocked by
8. die (词形变化）
9. skin and bones
10. claim
1.了解，知道...的情况，关于
2.数十年来，几十年来
3.毫无疑问
4.融化的冰
5.为……提供依据/证据
6.急剧变化
7.被...震惊
9.瘦骨嶙峋
10.宣称
1. There is little doubt ______ Earth is getting warmer and warmer.
(创新设计P31)
that
along with 连接前后两个主语时，谓语动词应和________那个主语保持一致，即“就远原则”。
句式分析
A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate. (P26)
Important sentences (P26)
前面的
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。
A library with five thousand books _________ (offer) to the nation as a gift.
All but one _____ (be) here just now.
WeChat, as well as Ding Talk, __________ (play) an important part in daily communication nowadays.
即学即用
is offered
were
is playing
Important sentences
We have known about climate change 1.______ decades. There is little doubt 2.______Earth is getting warmer and warmer. In 2013, a lot of people were 3.______(shock) by a news photo of a 4.______(die) polar bear. All 5._____ remained of the polar bear was "skin and bones ". The bear appeared to 6._______(starve) and died. Experts claimed that low sea-ice levels 7.________(cause) by climate change 8.________(mean) that the bear could not hunt seals as before, so it had to travel greater distances in order to find food. This 9.________(claim) case showed 10.______ the increase in temperature had an impact on Earth’s ecology.
Para.3
1. greenhouse effect
2. refer to
3. short-wave adj.
4. be released into
5. at longer wave length
6. trap the heat/ be trapped in
7. sustain life
8. huge amounts of
9. fossil fuels
1.温室效应
2.指的是...
3.短波的
4.释放
5.以长波形式
6.吸收热量/被困在...
7.维持生命
8.大量的
9.化石燃料
th结尾的名词
width/length/depth/warmth/truth/growth/strength
1. The “natural” greenhouse effect refers to the fact _____ heat from the sun enters the atmosphere and warms Earth’s surface as short-wave radiation.
that
“天然”温室效应指的是来自太阳的热量以短波辐射的形式进入大气层，使地表变暖。
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
后面
Important sentences
They expressed the hope _______ they would come over to China soon.
Word has come _______ some American guests will come to our college for a visit next week.
He can’t answer the question _______ he got the money from his home yesterday.
Do you have any idea _______ is actually going on in the classroom
The problem ________ we should have the meeting in the hall now must be decided at once.
即学即用
that
that
how
what
whether
Without this process, Earth could not sustain life.
没有这个过程，地球将无法维持生命。
虚拟语气without this process=if there were no less process
结合创新设计P32
Eg.没有海洋，包括人类在内，任何生物都无法生存。
Then 1.______is causing the increase in the global average surface temperature Climate scientists often mention a key climate process 2._____(call) the "greenhouse effect " which has two common meanings: the "3.______(nature) greenhouse effect and the "man-made greenhouse effect. The "natural "greenhouse effect refers to the fact 4._____ heat from the sun enters the atmosphere and warms Earth's surface as short-wave radiation. The heat is released back into space 5.______ longer wave lengths. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat,6.______(keep) Earth's climate warm and habitable. Without this process, Earth 7.____________( sustain) life.
1.Prices of daily goods __________ (buy) through a computer can be lower than store prices.
2. The leader stayed up all night, _________ (think) of what to do the next day.
thinking
bought
Para.4
1.There is strong and comprehensive evidence that ...
确凿，全面的证据表明…
2.lead to=result in=contribute to
3.extreme weather and natural masters worldwide,
全球极端天气和自然灾害
4.worldwide adj. & adv. 世界各地的，影响全世界的
5.not only ...but also…不但...而且...
1) 可以连接两个并列的句子，强调后者,also可省略
(2)连接两个主语时，其谓语采用就近原则
(3)连接两个分句时，前用部分倒装，后一分句则不用倒装
4.take appropriate actions /measures
采取适当的行动/措施
5.trend n. 趋势,趋向
6.There will be a higher price to pay.
付出更大的代价
7.frequently adv. 经常地，频繁地
frequent adj.
frequency n. 频繁，频率
frequently-used adj. 常用的
There is strong and comprehensive evidence 1._____ the rise in temperature 2.____________(lead) an increase in extreme weather and natural disasters worldwide, not only 3.________(cause) serious damage, but also 4.________(cost) human lives. Climate scientists have warned that 5.______ we do not take appropriate actions, this warming trend will probably continue and there will be a 6.________(high) price to pay. In fact, news reports are 7._________(frequent) broadcast about extreme rainstorms and heatwaves causing deaths and economic 8.__________(lose).
Para5
1.result in
2.long-lasting
3.consider doing
4.make policies
5.take appropriate actions
6.restrict
7.seize the opportunity to
1.导致
2.持续的
3.考虑做...
4.制定措施
5.采取恰当的措施
6.限制
7.抓住机会做...
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.
seize v. 抓住；夺取；控制
仿写： 我们应该抓住每一个机会锻炼自己。
1._________(continue) greenhouse gas emissions will result in further warming and long-lasting changes 2.____ the global climate. This requires the attention of people all over the world. Governments need to consider 3._________(make) policies and 4._________(take) appropriate actions and measures to reduce greenhouse gas emissions. We 5.______ individuals can also reduce our "carbon footprint" by restricting the amount of carbon dioxide our lifestyles produce. 6._______ 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 7.______ this planet. So what will you do to help
Unit 3
课文
graph n. 图；图表；曲线图
emission n. 排放物；散发物；排放
melt vi. & vt.(使)融化；熔化；
starve vi. & vt.(使)挨饿；饿死
seal n. 海豹
ecology n. 生态；生态学
release vt. &n. 排放；释放；发布
methane n. 甲烷；沼气
carbon n. 碳
dioxide n. 二氧化物
carbon dioxide 二氧化碳
habitable adj. 适合居住的
sustain vt. 维持；遭受；承受住
sustainable adj. 可持续的；合理利用的
Paras 1-2
1. know about
2. for decades
3. There is no doubt that...
4. melting ice
5. provide evidence of
6. a dramatic change
7. be shocked by
8. die (词形变化）
9. skin and bones
10. claim
1.了解，知道...的情况，关于
2.数十年来，几十年来
3.毫无疑问
4.融化的冰
5.为……提供依据/证据
6.急剧变化
7.被...震惊
9.瘦骨嶙峋
10.宣称
1. There is little doubt ______ Earth is getting warmer and warmer.
(创新设计P31)
that
along with 连接前后两个主语时，谓语动词应和________那个主语保持一致，即“就远原则”。
句式分析
A warming ocean and atmosphere along with melting ice and rising sea levels provide evidence of a dramatic change in the global climate. (P26)
Important sentences (P26)
前面的
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。
A library with five thousand books _________ (offer) to the nation as a gift.
All but one _____ (be) here just now.
WeChat, as well as Ding Talk, __________ (play) an important part in daily communication nowadays.
即学即用
is offered
were
is playing
Important sentences
We have known about climate change 1.______ decades. There is little doubt 2.______Earth is getting warmer and warmer. In 2013, a lot of people were 3.______(shock) by a news photo of a 4.______(die) polar bear. All 5._____ remained of the polar bear was "skin and bones ". The bear appeared to 6._______(starve) and died. Experts claimed that low sea-ice levels 7.________(cause) by climate change 8.________(mean) that the bear could not hunt seals as before, so it had to travel greater distances in order to find food. This 9.________(claim) case showed 10.______ the increase in temperature had an impact on Earth’s ecology.
Para.3
1. greenhouse effect
2. refer to
3. short-wave adj.
4. be released into
5. at longer wave length
6. trap the heat/ be trapped in
7. sustain life
8. huge amounts of
9. fossil fuels
1.温室效应
2.指的是...
3.短波的
4.释放
5.以长波形式
6.吸收热量/被困在...
7.维持生命
8.大量的
9.化石燃料
th结尾的名词
width/length/depth/warmth/truth/growth/strength
1. The “natural” greenhouse effect refers to the fact _____ heat from the sun enters the atmosphere and warms Earth’s surface as short-wave radiation.
that
“天然”温室效应指的是来自太阳的热量以短波辐射的形式进入大气层，使地表变暖。
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
后面
Important sentences
They expressed the hope _______ they would come over to China soon.
Word has come _______ some American guests will come to our college for a visit next week.
He can’t answer the question _______ he got the money from his home yesterday.
Do you have any idea _______ is actually going on in the classroom
The problem ________ we should have the meeting in the hall now must be decided at once.
即学即用
that
that
how
what
whether
Without this process, Earth could not sustain life.
没有这个过程，地球将无法维持生命。
虚拟语气without this process=if there were no less process
结合创新设计P32
Eg.没有海洋，包括人类在内，任何生物都无法生存。
Then 1.______is causing the increase in the global average surface temperature Climate scientists often mention a key climate process 2._____(call) the "greenhouse effect " which has two common meanings: the "3.______(nature) greenhouse effect and the "man-made greenhouse effect. The "natural "greenhouse effect refers to the fact 4._____ heat from the sun enters the atmosphere and warms Earth's surface as short-wave radiation. The heat is released back into space 5.______ longer wave lengths. Greenhouse gases in the atmosphere, such as methane and carbon dioxide, trap some of the heat,6.______(keep) Earth's climate warm and habitable. Without this process, Earth 7.____________( sustain) life.
1.Prices of daily goods __________ (buy) through a computer can be lower than store prices.
2. The leader stayed up all night, _________ (think) of what to do the next day.
thinking
bought
Para.4
1.There is strong and comprehensive evidence that ...
确凿，全面的证据表明…
2.lead to=result in=contribute to
3.extreme weather and natural masters worldwide,
全球极端天气和自然灾害
4.worldwide adj. & adv. 世界各地的，影响全世界的
5.not only ...but also…不但...而且...
1) 可以连接两个并列的句子，强调后者,also可省略
(2)连接两个主语时，其谓语采用就近原则
(3)连接两个分句时，前用部分倒装，后一分句则不用倒装
4.take appropriate actions /measures
采取适当的行动/措施
5.trend n. 趋势,趋向
6.There will be a higher price to pay.
付出更大的代价
7.frequently adv. 经常地，频繁地
frequent adj.
frequency n. 频繁，频率
frequently-used adj. 常用的
There is strong and comprehensive evidence 1._____ the rise in temperature 2.____________(lead) an increase in extreme weather and natural disasters worldwide, not only 3.________(cause) serious damage, but also 4.________(cost) human lives. Climate scientists have warned that 5.______ we do not take appropriate actions, this warming trend will probably continue and there will be a 6.________(high) price to pay. In fact, news reports are 7._________(frequent) broadcast about extreme rainstorms and heatwaves causing deaths and economic 8.__________(lose).
Para5
1.result in
2.long-lasting
3.consider doing
4.make policies
5.take appropriate actions
6.restrict
7.seize the opportunity to
1.导致
2.持续的
3.考虑做...
4.制定措施
5.采取恰当的措施
6.限制
7.抓住机会做...
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.
seize v. 抓住；夺取；控制
仿写： 我们应该抓住每一个机会锻炼自己。
1._________(continue) greenhouse gas emissions will result in further warming and long-lasting changes 2.____ the global climate. This requires the attention of people all over the world. Governments need to consider 3._________(make) policies and 4._________(take) appropriate actions and measures to reduce greenhouse gas emissions. We 5.______ individuals can also reduce our "carbon footprint" by restricting the amount of carbon dioxide our lifestyles produce. 6._______ 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 7.______ this planet. So what will you do to help