人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection优质ppt课件

这是一份人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection优质ppt课件，文件包含Unit3EnvironmentalProtectionReadingandThinking课件pptx、Unit3EnvironmentalProtectionReadingandThinking课时练习解析版docx、Unit3EnvironmentalProtectionReadingandThinking课时练习原卷版doc等3份课件配套教学资源，其中PPT共39页， 欢迎下载使用。

Learning Objective
By the end f the class, students are able t
accumulate sme wrds abut climate changes and envirnmental prtectin identify the style f this text and infer the writer’s purpset think abut the measures f envirnmental prtectin
Part 1 Warming-up
When yu are encunted with envirnmental prblems, what d yu think?
The earth is crying. Peple are trying t use the envirnment t maximize the use f resurces.
1. What’s happening in the pht?The ice is melting.2. Why did it happen? Because f the greenhuse effect/glbal warming.
Part 2 Pre-reading
What is glbal warming?
natural disasters
ecnmic lsses
castal cities submerged
extreme weather
unpredictable future f human
animals dying
Hw d yu prtect the envirnmental prtectin?
Part 3 While-reading
What is the graph abut? What infrmatin can yu get frm it?
The graph shws the change in the Glbal Surface Temperature between 1920 and 2016.
It shws the temperature anmaly, which shws hw much the temperature has risen abve what it wuld usually be at a base level.
What happened t the plar bear in the pht? What might be the stry behind it?
The plar bear in the pht died f starvatin. The stry is that the plar bear starved t death because it culd nt find enugh t eat.
What is the purpse f writing this text?
The authr’s purpse is t infrm the readers and inspire them t d whatever they can t deal with this prblem.
Read the passage quickly and summarize the main idea f each part.
The evidence f dramatic climate change that had an impact n Earth’s eclgy
The cause f the increase in the glbal average surface temperature
The cnsequences f the rise in temperature
The slutins t reducing greenhuse gas emissins
Read the text and find ut the develpment f the passage.
[ɪkˈspɒzɪtərɪ]
Expsitry writing
Para. 1: What evidence f climate change can yu find in this paragraph?
A warming cean and atmsphere alng with melting ice and rising sea levels prvide evidence f a dramatic change in the glbal climate.
Para. 2: Can yu use yur wrds t describe hw climate change have influenced the plar bear's life?
climate change
lw sea-ice levels
bears culd nt hunt
had t travel greater distances t find fd
starved t death
its dead bdy fund
Para. 3: Find the key precess abut “greenhuse effect”.
Greenhuse effect
natural greenhuse effect
keeping Earth's climate warm and habitable
man-made greenhuse effect
causing Earth’s surface temperature t rise quickly if t much heat energy is trapped
Para. 3: Use a diagram describing hw the greenhuse effect wrks.
Para. 3: Why is the “natural” greenhuse effect imprtant and neccessary?
Para. 4: Grup wrk: Draw a mind map t shw the relatinship f this paragraph.
The rise in temperature
extreme weather / natural disasters
extreme rainstrms, heat waves
serius damage, csting human lives, ecnmic lsses
Para. 4: Why did the authr mentin the climate scientists’ warning?
Para. 5: Hw can individuals reduce “carbn ftprint” ?
Para. 5: What shuld we d t reduce greenhuse gas emissins?
Language Pints
1. 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.
refer t指的是；提到，说起；参考；涉及
reference n.提及；谈到；参考in/with reference t关于
例如：关于英语学习方法，我有如下建议分享给你。In reference t English study methds，I have the fllwing practical suggestins t share with yu.
2. There is little dubt that Earth is getting warmer and warmer.
dubt的常见句型：There is sme dubt whether... ……有些疑问。There is n dubt that... ……是毫无疑问的。I dubt have sme dubt whether... 我怀疑……I dn’t dubt have n dubt that... 我毫不怀疑……
①There is sme dubt he will be elected president.②I never dubt special classes can help the gifted children t graduate earlier and take their place in life sner.③毫无疑问，当你筋疲力尽时，一杯茶可以使你精力充沛。 a cup f tea can make yu dynamic when yu are wrn ut.
There is n dubt that
3. It is ur respnsibility t seize every pprtunity t educate everyne abut glbal warming，alng with its causes and impacts，because this is the mst serius issue affecting all f us n this planet.
seize sb. by the＋身体部位 抓住某人的……seize a chance/an pprtunity 抓住机会
例如：我们应该抓住机会努力工作来实现我们的目标。We shuld seize the pprtunity t wrk hard t achieve ur gal
4. bear appeared t have starved and died.
starve fr 渴望；极想得到 starve t death饿死starvatin n.饥饿；饿死die f/frm starvatin饿死starving adj.极想的；渴望的be starving fr渴望得到
例如：我渴望得到一个机会学习如何包饺子。I starve fr/am starving fr a chance t learn hw t make dumpling.
5. We as individuals can als reduce ur “carbn ftprint” by restricting the amunt f carbn dixide ur lifestyles prduce.
例如：俱乐部成员的数量被限制在10人以内。The number f the club members is restricted t ten.
Part 4 Pst-reading
Why is a questin left at the end?
T leave readers’ deep thughts f hw t reduce greenhuse gas emissins.
D yu think climate change is the result f man's greed?
Let’s think:
I d think that climate change is the result f human activities because the majrity f scientists als think s, and als because glbal temperatures have fllwed the rise in glbal emissins and ppulatin.
What examples f extreme weather and disasters d yu knw?
There are sadly many examples f extreme weather and disasters I knw f, such as the extreme rainfall in France and the drught in East Africa in 2014. There were als heatwaves n nearly every cntinent due t climate change.
Wh d yu think shuld take respnsibility fr dealing with climate change?
I think we all need t take respnsibility fr dealing with it.Individuals can change their behaviur and try t reduce their carbn ftprint,while cmpanies and gvernments can d the same n the larger scale.