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高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教课ppt课件
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这是一份高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教课ppt课件，共36页。PPT课件主要包含了heat wave，drought，flood等内容，欢迎下载使用。
1. What can yu see in the picture?2.What is the cause f this phenmenn?
A large piece f ice breaking ff a large glacier r ice sheet.
Glbal warming
What ther cnsequences may glbal warming bring abut?
Think and talk
melting ice
While-reading
Pre-reading
Q1. What d yu think might have caused the plar bear’s death?Q2. What is the graph abut? What infrmatin can yu get frm it?
glbal temperature change
What is the graph abut? What infrmatin can yu get frm it?
Q1. What's the type f this text? A. News reprt. B. Bigraphy. C. Expsitry essay. D. Argumentatin.Q2. In which part f a newspaper r magazine may we find this passage? A. Entertainment B. Ecnmy C. Educatin D. Envirnment
Read fr the text type
Read fr structure
Find ut the tpic sentence f each paragraph.
Expsitry Essay
Part 1 prblem
Q. What evidence f climate change can yu find in the first paragraph?
Evidence:①________________________________②____________③_______________
a warming cean and atmsphere
rising sea level
climate change
lnger fd-seeking travel
lw sea-ice level
The fllwing reasns accunt fr the death f the plar bear, with ne influencing anther. Read paragraph 2 and put them in a crrect lgical rder.
What is the rt cause?
Cause and effect
Part 2 cause
Q. Hw the greenhuse effect wrks in natural and man-made situatins?
What are the cnsequences f high greenhuse gas emissins?
A: High greenhuse gas emissins lead t mre heat energy being trapped in the atmsphere and rising temperatures.
Read paragraph 3 and create a diagram describing hw the greenhuse effect wrks.
Heat released back int space
Heat reflected back t Earth’s surface
Reflected sunlight
Draw a diagram Diagrams are very useful tls that can be used t brainstrm ideas, map ut prcesses, shw cause and effect relatinships, explain a new idea r cncept, and s n. When yu read an essay abut scientific issues, yu can try drawing a diagram, which will nt nly allw yu t visualise the prblems mre clearly but als can help demnstrate yur creative thinking and prblem-slving.
Part 3 cnsequence
Q1. What are the cnsequences f the glbal temperature rise? Q2. Why did the authr mentin the climate scientists’ warning?
The rise in the temperature
extreme weather & natural disasters
serius damage, csting human lives
extreme rainstrms, heatwaves
Because glbal warming needs everyne’s attentin and it is essential that we take apprpriate actins.
Part 4 slutins
Pst-reading
Activity4:Grup discussin
As a student, what can we d t deal with climate change in ur daily life?
Turn ff the lights and fans when leaving
Plant mre trees
Take the stairs instead f elevatr
G t schl by bike instead f by car/bus
Less tissue, regain handkerchief
frest prtectin
Turn ff light, switch, pull the plug if nt use.
plant trees
walk r cycle t wrk
Hw d we live a lw-carbn lifestyle?
Only by changing the way we treat the envirnment can we get alng well with it. Only by saving the envirnment can we save urselves. Lucid waters and lush muntains are valuable as "muntains f gld and silver". 青山就是金山银山。If we dn't save water, the last drp f water will be ur tear. 如果我们不节约用水，那么最后一滴水将会是我们的眼泪。When the sky becmes blue again and the rivers becme clean, we'll live a healthier and happier life. 当天空再次变得湛蓝，河水变得清洁，我们会过上更健康、更快乐的生活。
Let’s keep the wrds in mind:
cmprehensive
sustainable
Language Pints
We have knwn abut climate change fr decades. There is little dubt that Earth is getting warmer and warmer (see the graph). A warming cean and atmsphere alng with melting ice and rising sea levels prvide evidence f a dramatic change in the glbal climate.我们了解气候变化已有数十年之久了。毫无疑问，地球正变得越来越温暖（如图）。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.
There is little/n dubt that... 毫无疑问...
本句是复合句。There is little/n dubt that... “毫无疑问...”，that引导同位语从句，解释说明dubt的具体内容。There is little dubt abut/whether... 对/对是否...有些疑问。I dubt whether/if... 我怀疑是否... I dn’t dubt that... 我确信...
alng with 与...一起
In 2013, a lt f peple were shcked by a news pht f a dead plar bear that was fund n Nrway's Arctic island f Svalbard. Accrding t the scientists wh fund its dead bdy, all that remained f the plar bear was "skin and bnes". An expert wh has studied plar bears fr many years said that frm the psitin f its dead bdy, the bear appeared t have starved and died. 2013年，在挪威的北极圈斯瓦尔巴群岛的一个岛上，（人们）发现了一只死亡的北极熊，这张新闻图片令许多人感到震惊。据发现北极熊尸体的科学家说，这只北极熊仅剩"皮包骨"。一位长期研究北极熊的专家说，从尸体的姿势看，这只北极熊像是饿死的。Experts claimed that lw sea-ice levels caused by climate change meant the bear culd nt hunt seals as befre, s it had t travel greater distances in rder t find fd. This alarming case shwed hw the increase in temperature had an impact n Earth's eclgy .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。这一令人惊恐的案例反映了气温上升对地球生态造成的影响。
appear t 似乎，好像
关系代词wh引导定语从句，修饰the scientists；关系代词that引导定语从句，修饰all；all that... = what..., that引导定语从句，修饰all。 all that若改为what，what引导的是名词性从句。
have an impact n... 对...有影响 influence effect
There is strng and cmprehensive evidence that the rise in temperature has led t an increase in extreme weather and natural disasters wrldwide, nt nly causing serius damage, but als csting human lives. Climate scientists have warned that if we d nt take apprpriate actins, this warming trend will prbably cntinue and there will be a higher price t pay. In fact, news reprts are frequently bradcast abut extreme rainstrms and heatwaves causing deaths and ecnmic lsses.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。气候学家已发出警告：如果我们不采取适当的行动，这种变暖的趋势可能会持续下去，而我们将为此付出更大的代价。事实上，有关极端暴风雨和热浪造成死亡和经济损失的新闻报道已屡见不鲜。
本句是复合句。There is evidence that... “有证据表明...”, that引导同位语从句，解释说明evidence的具体内容。nt als... “不仅...而且...”，连接两个并列的成分，此处连接了两个作结果状语的现在分词短语。
Then what is causing the increase in the glbal average surface temperature? Climate scientists ften mentin a key climate prcess called the "greenhuse effect", which has tw cmmn meanings: the "natural" greenhuse effect and the "man-made" greenhuse effect. The "natural"greenhuse effect refers t the fact that heat frm the sun enters the atmsphere and warms Earth's surface as shrt-wave radiatin. 那么，到底是什么导致全球平均地表温度上升呢？气候科学家常常会提到一个关键的气候过程﹣-"温室效应"；它有两个常见的含义："天然"温室效应和"人造"温室效应。"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人大气层，使地表变暖。 Hwever, the "man-made" greenhuse effect has nw becme a big prblem. When peple prduce huge amunts f extra greenhuse gases by burning fssil fuels, mre heat energy is trapped in the atmsphere and causes Earth's surface temperature t rise quickly.然而，"人造"温室效应现在却成为一个大问题。当人类由于燃烧化石燃料产生了大量额外的温室气体，更多的热能被困在大气层中，导致地表温度迅速上升。
refer t 参考，涉及，指的是...
be trapped in... 被困在...
Cntinued greenhuse gas emissins will result in further warming and lng-lasting changes t the glbal climate. This requires the attentin f peple all ver the wrld. Gvernments need t cnsider making plicies and taking apprpriate actins and measures t reduce greenhuse gas emissins. 温室气体的持续排放将导致全球气候进一步变暖，并带来持久的变化。这需要全世界人的关注。各国政府需考虑制定政策并采取适当的行动和措施以减少温室气体的排放。
result in 导致 ＋结果result frm 由于 ＋原因
1. What can yu see in the picture?2.What is the cause f this phenmenn?
A large piece f ice breaking ff a large glacier r ice sheet.
Glbal warming
What ther cnsequences may glbal warming bring abut?
Think and talk
melting ice
While-reading
Pre-reading
Q1. What d yu think might have caused the plar bear’s death?Q2. What is the graph abut? What infrmatin can yu get frm it?
glbal temperature change
What is the graph abut? What infrmatin can yu get frm it?
Q1. What's the type f this text? A. News reprt. B. Bigraphy. C. Expsitry essay. D. Argumentatin.Q2. In which part f a newspaper r magazine may we find this passage? A. Entertainment B. Ecnmy C. Educatin D. Envirnment
Read fr the text type
Read fr structure
Find ut the tpic sentence f each paragraph.
Expsitry Essay
Part 1 prblem
Q. What evidence f climate change can yu find in the first paragraph?
Evidence:①________________________________②____________③_______________
a warming cean and atmsphere
rising sea level
climate change
lnger fd-seeking travel
lw sea-ice level
The fllwing reasns accunt fr the death f the plar bear, with ne influencing anther. Read paragraph 2 and put them in a crrect lgical rder.
What is the rt cause?
Cause and effect
Part 2 cause
Q. Hw the greenhuse effect wrks in natural and man-made situatins?
What are the cnsequences f high greenhuse gas emissins?
A: High greenhuse gas emissins lead t mre heat energy being trapped in the atmsphere and rising temperatures.
Read paragraph 3 and create a diagram describing hw the greenhuse effect wrks.
Heat released back int space
Heat reflected back t Earth’s surface
Reflected sunlight
Draw a diagram Diagrams are very useful tls that can be used t brainstrm ideas, map ut prcesses, shw cause and effect relatinships, explain a new idea r cncept, and s n. When yu read an essay abut scientific issues, yu can try drawing a diagram, which will nt nly allw yu t visualise the prblems mre clearly but als can help demnstrate yur creative thinking and prblem-slving.
Part 3 cnsequence
Q1. What are the cnsequences f the glbal temperature rise? Q2. Why did the authr mentin the climate scientists’ warning?
The rise in the temperature
extreme weather & natural disasters
serius damage, csting human lives
extreme rainstrms, heatwaves
Because glbal warming needs everyne’s attentin and it is essential that we take apprpriate actins.
Part 4 slutins
Pst-reading
Activity4:Grup discussin
As a student, what can we d t deal with climate change in ur daily life?
Turn ff the lights and fans when leaving
Plant mre trees
Take the stairs instead f elevatr
G t schl by bike instead f by car/bus
Less tissue, regain handkerchief
frest prtectin
Turn ff light, switch, pull the plug if nt use.
plant trees
walk r cycle t wrk
Hw d we live a lw-carbn lifestyle?
Only by changing the way we treat the envirnment can we get alng well with it. Only by saving the envirnment can we save urselves. Lucid waters and lush muntains are valuable as "muntains f gld and silver". 青山就是金山银山。If we dn't save water, the last drp f water will be ur tear. 如果我们不节约用水，那么最后一滴水将会是我们的眼泪。When the sky becmes blue again and the rivers becme clean, we'll live a healthier and happier life. 当天空再次变得湛蓝，河水变得清洁，我们会过上更健康、更快乐的生活。
Let’s keep the wrds in mind:
cmprehensive
sustainable
Language Pints
We have knwn abut climate change fr decades. There is little dubt that Earth is getting warmer and warmer (see the graph). A warming cean and atmsphere alng with melting ice and rising sea levels prvide evidence f a dramatic change in the glbal climate.我们了解气候变化已有数十年之久了。毫无疑问，地球正变得越来越温暖（如图）。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.
There is little/n dubt that... 毫无疑问...
本句是复合句。There is little/n dubt that... “毫无疑问...”，that引导同位语从句，解释说明dubt的具体内容。There is little dubt abut/whether... 对/对是否...有些疑问。I dubt whether/if... 我怀疑是否... I dn’t dubt that... 我确信...
alng with 与...一起
In 2013, a lt f peple were shcked by a news pht f a dead plar bear that was fund n Nrway's Arctic island f Svalbard. Accrding t the scientists wh fund its dead bdy, all that remained f the plar bear was "skin and bnes". An expert wh has studied plar bears fr many years said that frm the psitin f its dead bdy, the bear appeared t have starved and died. 2013年，在挪威的北极圈斯瓦尔巴群岛的一个岛上，（人们）发现了一只死亡的北极熊，这张新闻图片令许多人感到震惊。据发现北极熊尸体的科学家说，这只北极熊仅剩"皮包骨"。一位长期研究北极熊的专家说，从尸体的姿势看，这只北极熊像是饿死的。Experts claimed that lw sea-ice levels caused by climate change meant the bear culd nt hunt seals as befre, s it had t travel greater distances in rder t find fd. This alarming case shwed hw the increase in temperature had an impact n Earth's eclgy .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。这一令人惊恐的案例反映了气温上升对地球生态造成的影响。
appear t 似乎，好像
关系代词wh引导定语从句，修饰the scientists；关系代词that引导定语从句，修饰all；all that... = what..., that引导定语从句，修饰all。 all that若改为what，what引导的是名词性从句。
have an impact n... 对...有影响 influence effect
There is strng and cmprehensive evidence that the rise in temperature has led t an increase in extreme weather and natural disasters wrldwide, nt nly causing serius damage, but als csting human lives. Climate scientists have warned that if we d nt take apprpriate actins, this warming trend will prbably cntinue and there will be a higher price t pay. In fact, news reprts are frequently bradcast abut extreme rainstrms and heatwaves causing deaths and ecnmic lsses.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。气候学家已发出警告：如果我们不采取适当的行动，这种变暖的趋势可能会持续下去，而我们将为此付出更大的代价。事实上，有关极端暴风雨和热浪造成死亡和经济损失的新闻报道已屡见不鲜。
本句是复合句。There is evidence that... “有证据表明...”, that引导同位语从句，解释说明evidence的具体内容。nt als... “不仅...而且...”，连接两个并列的成分，此处连接了两个作结果状语的现在分词短语。
Then what is causing the increase in the glbal average surface temperature? Climate scientists ften mentin a key climate prcess called the "greenhuse effect", which has tw cmmn meanings: the "natural" greenhuse effect and the "man-made" greenhuse effect. The "natural"greenhuse effect refers t the fact that heat frm the sun enters the atmsphere and warms Earth's surface as shrt-wave radiatin. 那么，到底是什么导致全球平均地表温度上升呢？气候科学家常常会提到一个关键的气候过程﹣-"温室效应"；它有两个常见的含义："天然"温室效应和"人造"温室效应。"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人大气层，使地表变暖。 Hwever, the "man-made" greenhuse effect has nw becme a big prblem. When peple prduce huge amunts f extra greenhuse gases by burning fssil fuels, mre heat energy is trapped in the atmsphere and causes Earth's surface temperature t rise quickly.然而，"人造"温室效应现在却成为一个大问题。当人类由于燃烧化石燃料产生了大量额外的温室气体，更多的热能被困在大气层中，导致地表温度迅速上升。
refer t 参考，涉及，指的是...
be trapped in... 被困在...
Cntinued greenhuse gas emissins will result in further warming and lng-lasting changes t the glbal climate. This requires the attentin f peple all ver the wrld. Gvernments need t cnsider making plicies and taking apprpriate actins and measures t reduce greenhuse gas emissins. 温室气体的持续排放将导致全球气候进一步变暖，并带来持久的变化。这需要全世界人的关注。各国政府需考虑制定政策并采取适当的行动和措施以减少温室气体的排放。
result in 导致 ＋结果result frm 由于 ＋原因
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