(共15张PPT)
Period 2
UNIT 3 ENVIRONMENTAL PROTECTION主题语境
人与自然——自然环境保护
1．What does the text mainly tell us
A．Some polar bears died of starvation．
B．What the greenhouse effect is．
C．How the polar bears find food．
D．Global warming has caused some disasters and we must pay attention to it．
课时练案 课文整体阅读(Reading and Thinking)
√
2．What's the main idea of the 4th paragraph
A．The increasing extreme weather．
B．The consequences of high greenhouse gas emissions．
C．The warming trend will last for a long time．
D．People will pay a high price．
√
1．From the second paragraph we can learn that________________．
A．all the polar bears have died of starvation
B．the expert knows nothing about the polar bear
C．the polar bear couldn't find enough food because of climate change
D．the polar bear liked travelling long distances
√
2．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．
3．In which part of a newspaper or magazine may we find this text
A．Entertainment． B．Economy．
C．Education． D．Environment．
√
√
1．Do you think climate change is the result of human activity Give your reasons．
___________________________________________________________
2．Who do you think should take responsibility for dealing with climate change What can we do
___________________________________________________________
[答案] 略
warmer
and warmer
death
greenhouse effect
disasters
attention
1．release n．排放；释放；发布；发行；公开 vt．发布；释放；松开；免除；公开；宣泄
①(教材原句)The heat is released back into space at longer wave lengths． ________
②The new software is planned for release in April． ________
③The band will release its new single next week． ________
④Music is a great channel for releasing your emotions． ________
vt．释放
n．发行
vt．发布
vt．宣泄
2．fuel n．燃料；刺激性言行 vt．增加；给……提供燃料；加强；刺激
①(教材原句)When people produce huge amounts of extra greenhouse gases by burning fossil fuels，more heat energy is trapped in the atmosphere and causes Earth's surface temperature to rise quickly．
________
②Fuel the vehicle as you would at a filling station．
__________________
③Research suggests warm colors fuel our appetites． _________
n．燃料
vt．给……提供燃料
vt．刺激
1．(学会断句)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．
[分析]本句是so连接的__________。Experts claimed是____；that引导宾语从句，作claimed的宾语；该宾语从句中的the bear could not hunt seals as before也是宾语从句，作meant的宾语；caused by climate change是过去分词短语作____，修饰名词levels。
[翻译]_____________________________________________________
___________________________________________________________
并列复合句
主句
定语
专家称，由于气候变化造成的海冰水位较低，这意味着这只
熊无法像以前那样捕猎海豹，所以为了找到食物它不得不长途跋涉。
2．(学会断句)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．
[分析]本句是一个复合句。There is strong and comprehensive evidence是_____；that引导_______从句；not only...but also...连接两个并列的动词-ing形式短语作结果状语。
[翻译]_____________________________________________________
___________________________________________________________
_______
主句
同位语
有充分和全面的证据表明，气温上升已导致世界范围内极端
天气和自然灾害的增加，这不仅造成严重的破坏，而且还造成人员
伤亡。
3．(学会断句)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．
[分析]本句是一个复合句。because引导_________从句；it是_________，真正的主语是to seize every opportunity...；affecting all of us on this planet是动词-ing形式短语作_____，修饰名词issue。
[翻译]_____________________________________________________
___________________________________________________________
_______
原因状语
形式主语
定语
我们有责任抓住每一个机会教育每个人，使他们了解全球变
暖及其原因和影响，因为这是影响我们地球上所有人的最严重的问
题。
1．(续写佳句) In 2013，a lot of people were shocked by a news photo of a dead polar bear that was found on Norway's Arctic island of Svalbard．
2013年，挪威斯瓦尔巴群岛上发现了一只北极熊尸体，这张照片让很多人感到震惊。
2．(续写佳句)We as individuals can also reduce our“carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce．
作为个人，我们也可以通过限制生活方式产生的二氧化碳量来减少我们的“碳足迹”。
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．Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse gas emissions． We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce．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．So what will you do to help？
THANKSPeriod 2 课文整体阅读(Reading and Thinking)
1．What does the text mainly tell us
A．Some polar bears died of starvation．
B．What the greenhouse effect is．
C．How the polar bears find food．
D．Global warming has caused some disasters and we must pay attention to it．
2．What's the main idea of the 4th paragraph
A．The increasing extreme weather．
B．The consequences of high greenhouse gas emissions．
C．The warming trend will last for a long time．
D．People will pay a high price．
1．From the second paragraph we can learn that________．
A．all the polar bears have died of starvation
B．the expert knows nothing about the polar bear
C．the polar bear couldn't find enough food because of climate change
D．the polar bear liked travelling long distances
2．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．
3．In which part of a newspaper or magazine may we find this text
A．Entertainment． B．Economy．
C．Education． D．Environment．
1．Do you think climate change is the result of human activity Give your reasons．
_____________________________________________________________________
_____________________________________________________________________
2．Who do you think should take responsibility for dealing with climate change What can we do
_____________________________________________________________________
_____________________________________________________________________
1．release n．排放；释放；发布；发行；公开 vt．发布；释放；松开；免除；公开；宣泄
①(教材原句)The heat is released back into space at longer wave lengths． ________
②The new software is planned for release in April． ________
③The band will release its new single next week． ________
④Music is a great channel for releasing your emotions． ________
2．fuel n．燃料；刺激性言行 vt．增加；给……提供燃料；加强；刺激
①(教材原句)When people produce huge amounts of extra greenhouse gases by burning fossil fuels，more heat energy is trapped in the atmosphere and causes Earth's surface temperature to rise quickly． ________
②Fuel the vehicle as you would at a filling station． ________
③Research suggests warm colors fuel our appetites． ________
1．(学会断句)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．
[分析]本句是so连接的________。Experts claimed是________；that引导宾语从句，作claimed的宾语；该宾语从句中的the bear could not hunt seals as before也是宾语从句，作meant的宾语；caused by climate change是过去分词短语作________，修饰名词levels。
[翻译]_______________________________________________________________
_____________________________________________________________________
2．(学会断句)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．
[分析]本句是一个复合句。There is strong and comprehensive evidence是________；that引导________从句；not only．．．but also．．．连接两个并列的动词-ing形式短语作结果状语。
[翻译]_______________________________________________________________
_____________________________________________________________________
3．(学会断句)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．
[分析]本句是一个复合句。because引导________从句；it是________，真正的主语是to seize every opportunity．．．；affecting all of us on this planet是动词-ing形式短语作________，修饰名词issue。
[翻译]_______________________________________________________________
_____________________________________________________________________
1．(续写佳句) In 2013，a lot of people were shocked by a news photo of a dead polar bear that was found on Norway's Arctic island of Svalbard．
2013年，挪威斯瓦尔巴群岛上发现了一只北极熊尸体，这张照片让很多人感到震惊。
2．(续写佳句)We as individuals can also reduce our“carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce．
作为个人，我们也可以通过限制生活方式产生的二氧化碳量来减少我们的“碳足迹”。
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．Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse gas emissions． We as individuals can also reduce our “carbon footprint” by restricting the amount of carbon dioxide our lifestyles produce．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．So what will you do to help？
Period 2
课文理解
Task 1 整体理解
1－2 DB
Task 2 细节理解
1－3 CDD
Task 3 多维探究
略
Task 4 课文框架
①warmer and warmer ②death ③greenhouse effect ④disasters ⑤attention
课文精粹
Ⅰ一词多义
1．①vt．释放 ②n．发行 ③vt．发布 ④vt．宣泄
2．①n．燃料 ②vt．给……提供燃料 ③vt．刺激
Ⅱ长难语句
1．分析：并列复合句；主句；定语
翻译：专家称，由于气候变化造成的海冰水位较低，这意味着这只熊无法像以前那样捕猎海豹，所以为了找到食物它不得不长途跋涉。
2．分析：主句；同位语
翻译：有充分和全面的证据表明，气温上升已导致世界范围内极端天气和自然灾害的增加，这不仅造成严重的破坏，而且还造成人员伤亡。
3．分析：原因状语；形式主语；定语
翻译：我们有责任抓住每一个机会教育每个人，使他们了解全球变暖及其原因和影响，因为这是影响我们地球上所有人的最严重的问题。
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