高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教课课件ppt

这是一份高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection教课课件ppt，共60页。PPT课件主要包含了Lead in，Evidence，damages，causes，warning， seal， fossil， in chaos， waterway， Summary等内容，欢迎下载使用。
By reading, explain causes and negative effects f glbal warming.
By teamwrk, present hw t slve the prblem f glbal warming in grups.
Be aware f the imprtance f cutting greenhuse gases and take effective actin t d it.
By the end f the class, yu will be able t
Learning Aims
What d yu knw abut glbal warming?
The effects are destructive as fllws:The sea level t rise. Severe strms, drughts, famines, the spread f diseases, and destructin f species.Wide animals died because f starvatin.Frest fire ccurs frequently because f the extreme ht weather.
What is the graph abut? What infrmatin can yu get frm it?The graph is abut the change f glbal Surface temperature.It shws us that the glbal temperatureis rising steadily and cntinuusly.2. What happened in the picture? D yu knw what caused it?A plar bear was dead and it is “skin and bnes.”The ice is melting n the muntain.Glbal warming causes the melting f iceberg and sme plar bears Suffer frm the lack f fd.
Read the text and sum up the main idea f each paragraph:
Glbal climate is changing dramatically.
An alarming case abut a bear starved t death.
What is causing the increase in the glbal average surface temperature
The destructin f the rise in temperature and the warning.
Further pssible changes t the glbal climate and ur duty.
Fast-reading
Read the text and answer the questins:1.What is the evidence f glbal warming?2.Why is the “natural ”greenhuse effect imprtant and necessary?3.What are the cnsequence f high greenhuse gas emissins?4.Why did the authr mentin the climate scientists’ warning?5.What is the authr’s purpse f writing the text?
Read the text and answer the questins:What is the evidence f glbal warming?Warming cean and atmsphere; melting and rising sea level; the starved plar animals; the extreme weather and natural is the “natural ”greenhuse effect imprtant and necessary?Because greenhuse gases trap heat and keeps the earth warm and are the cnsequence f high greenhuse gas emissins?Peple prduce huge amunts f extra greenhuse gases and mre heat energy is trapped, causing the temperature t g up.
4.Why did the authr mentin the climate scientists’ warning?Because the writer wants t warn us f the urgency f taking apprpriate actins t tackle the is the authr’s purpse f writing the text?T aruse ur awareness f the prblem f the rise f temperature and taking prper actins t address the glbal warming.
Read the text again and create a diagram describing hw the greenhuse effect wrks.
Diagrams are very useful tls that can be used t brainstrm idea, map ut prcesses, shw cause and effect relatinships, explain a new idea f 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 visualize the prblems mre clearly but als can help demnstrate yur creative thinking and prblem-slving.
1.What examples f extreme weather and disasters d yu knw? Make a list f them.2. D yu think it is human activity that caused glbal climate change? Give yur reasns?3. Wh shuld take respnsibility t address this climate change? What shuld yu d t d t tackle it?
Grup discussin
1.What examples f extreme weather and disasters d yu knw? Make a list f them.Tsunami, flds, landslides, sandstrms, thunderstrms, earthquakes, hail, ht waves, cld waves, typhns, trnads, yu think it is human activity that caused glbal climate change? Give yur reasns?3. Wh shuld take respnsibility t address this climate change?
Yes. Human beings burn t much fssil fuels and prduce large quantities f carbn dixide, causing the temperature t g up steadily .
It is everyne’s duty t take care f the earth and d ur part t tackle glbal warming.
Take the stairs instead f elevatr
What yu shuld d t d t tackle it?
Dn't litter
G t schl by bike instead f by car/bus
Turn ff the lights when leaving.Cver the pt while cking
Use handkerchief instead f facial tissue
Use basket r envirnmental basket bag instead f plastic bag;buy things ecnmic with energy; use recycle gds r items.
Climate is rising.
Ptential further changes
actins t tackle the issue
Wrds and Expressins
1.graph 图表/曲线图 diagram 几何图解/示意图 table 列表/一览表2. emissin n. 排放物; 散发物; 排放 pl：emissins emit v. 发出; 射出; 散发 同义短语：give ff/ut 发出(光,热,气体）3.melt (melted) 融化,软化 a melting pt f different natinalities:多民族的大熔炉4. starve vi. & vt. (使)挨饿; 饿死 n.starvatin (be)starve(d) t death：饿死 eg: A number f children in Africa ____(starve) t death ver the past few years
have(been) starved
5. seal n. 海豹/印章 v.密封 eg：He brke the wax seal and unrlled the n. 生态; 生态学 eclgist 生态学家 bilgy n. 生物学; 生态学 bilgist 生物学家 psychlgy n.心理学 psychlgist n7.release vt. & n. 排放; 释放; 发布 释放 issue [ˈɪʃuː] v.宣布/公布 n. ; 争论的问题; 热点 release harmful gases release a prisner/release infrmatin
1.On the peak, she burst int tears, _______(release) all her emtins. 2.When fuel is burning, it __________a lt f heat. 3.Once__________(release) ,the new editin f the dictinary will be ppular.
will release
8. habitable adj. 适合居住的habitat n.(动植物的)栖息地 habit n. 习惯; 癖好Eg: 1.Sme areas f the cuntry are t cld t be habitable. 2.I dn’t think that the earth is the nly habitable planet.
sustain vt. 维持;支撑; 遭受; 承受住 ,证实， adj.sustainable 可持续的写出下列句子中划线单词的汉语译意:1.They fund it difficult t sustain the weight f facts sustain the cmpany sustained lsses f millins f cnsider it challenging t sustain an interest in their talk.
16.fuel n.燃料；刺激性言行 add fuel t the fire/flames:火上浇油 eg:Research suggests warm clurs fuel ur appetites17.cmprehensive adj.全部的;所有的； cmprehensin n.理解力18.restrict v.限制 restricted adj 受限的 restrictin n.限制(法规,约束) 把...限制在... restrict neself 限制自己在... imprt/exprt/speed/travel restrictins
翻译下列句子：1.长裙限制了她的活动。 Lng dress restricted her mvements.2.我爸爸控制自己每天吸10根烟。My father restricted himself t 10 cigarettes a day.3.镇里限速30km/h.The speed is restricted t 30 mph in twns.
19.seize v.抓住;夺取;控制catch/get/grab/take/seize hld f...: 抓住seize/catch/hld sb + by the leg (hand, arm): 抓住某人的腿/手/胳膊20.refrm vt 改革；(使)改正；改造 Our cmpany_______________ (refrm) its prmting system by the end f last year.
had refrmed
写出句子中划线单词的含义 teacher thught she culd refrm the shuld try t refrm prisners thrugh labur rather than punish refrms shuld give a better chance t the students in the changes have taken place in China since it began the refrm and pening-up plicy.
21.underg [ˌʌndəˈɡəʊ]: underwent -- undergne vt. 经历; 经受(变化/不快等) 尤指经历坎坷,变化或不愉快的事情,也可指接受测试、培训等experience: v. 经历; 感受 (强调亲身经历或体验某事物)g thrugh...: 经历; 遭受suffer frm...: 受害于...; 患(病)1.The bss think it imprtant fr emplyees _____________ (underg) sme career training
22.implement vt.实施 n.工具 carry ut 实施 writing/cleaning implements implement changes/refrms/plicies/decisins实行变革/实施改革/执行政策/执行决议
23.harmnius adj.和谐的 adv.harmniusly n.harmny 和谐,融洽 be in harmny with...: 与…和谐/协调/融洽/和睦 翻译：我妈妈要求我要和室友和谐相处 My mther demanded that I(shuld) be in harmny with my rmmates.
24.mderate adj.适度的,中等的,温和的/v. 理解下列划线单词的中文含义1.Cntrary t ppular belief,mderate exercise decreases yur appetite. 2.The by is a student f nly mderate ability. 3.By evening, the wind had mderated slightly. 4.We hpe that they will take a mderate psitin n mst f the key issues.
25.submit v.递交,呈递,屈服 submitted/submitted submit an applicatin/a claim/cmplaint submit sth t sb 把某物交给某人 submit t ding/sth/sb 屈从/屈服于某事/物/人 1. In the end,the man______________(submit) t the enemy. 2. He gave up struggling fr freedm, _______________ (submit) t the reality.
trpical frest
26.chas [ˈkeɪɒs]: n. 混乱; 杂乱; 紊乱ecnmic/plitical chas: 经济/政治的混乱in chas: 混乱; 一片混乱; 乱七八糟27.n behalf f 代表 represent /stand fr 代表,象征 翻译：我将代表公司签署这份文件I will sign the dcument n behalf f my cmpany.
28.sensitive adj.敏感的,善解人意的 be sensitive t 对...敏感/体贴 be sensitive abut 对...介意My teeth is very sensitive_______cld fdThe yung girl is rather sensitive_________the appearance f her further husband.
29.riginate 起源 rigin n.起源/起点 riginal adj 原来的,最初的,原创的/n.原稿,原创 riginally adv.起初/原来 公司/企业/进取心 翻译:他是一个积极进取的人 He is a man f great enterprise.
31.restre v 恢复/复原 写出划线单词的中文含义1.Such kindness restre yur faith in huaman measures shuld be taken t restre the river’s riginal is nw fully restred t army has recently been brught in t restre rder at the capital.
32.cnservatin 对(环境,文物)保护;保持 cnserve v.保护,节约 cnserved adj.保守的33.dispsal n.除掉 dispse v.清理,去除 at ne’s dispsal 任某人处理34.inspectin n.检查/查看 inspect v 检查,查看 inspectr n.视察员
35.tlerate tlerate(ne’s/sb)ding sth tlerant adj.容忍的 tlerance n be tlerant f 容忍某人/物 翻译：新的环境让我无法忍受 1.New surrundings were difficult t tlerant 2. I can’t be tlerant f the new surrundings.
1. starve vi.&vt. (使)挨饿; 饿死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. 一位研究北极熊多年的专家说，从北极熊尸体的 位置来看，北极熊似乎是饿死的。
Language pints
【知识拓展】(1)starve fr　　　　渴望, 极想得到starve t death饿死(2) starvatinn. 挨饿(3)starvingadj. 极想的, 渴望的be starving fr渴望得到某物
【巧学助记】语境助记starveThe starvatin is still a very serius prblem tday. It’s said that ne in seven peple in the wrld is starving. Frtunately, the UN has taken a lt f measures t prtect them frm being starved t death. 今天饥饿仍然是一个非常严重的问题。据说世界上七分之一的人在挨饿。幸运的是, 联合国已经采取了很多措施来保护他们免于饿死。
【即学即练】语法填空。(1)The lnely student is ________(starve) fr friendship. (2)We shall wait the enemy ut, and watch them starve t _____(die). (3)Since the famine brke ut, the number f peple dying f _________(starve) has been increasing.
2. sustain vt. 维持； 遭受；承受住Withut this prcess,Earth culd nt sustain. 没有这个过程，地球也无法维持下去。
【知识拓展】sustain an interest　　　　保持兴趣sustain lsses遭受损失sustain ne’s weight承受某人的体重sustainable develpment可持续发展
【即学即练】(1)They had sufficient fd t __________.  他们有足够的食物来维持生命。(2) ______________________is a brand new idea f sciety develpment.  可持续发展是一种全新的社会发展观。
sustain life
Sustainable develpment
3. fuel n. 燃料；刺激性言行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.当人们通过燃烧化石燃料产生大量额外的温室气体的时，更多的热能被困在大气中，导致地球表面温度迅速上升。
【知识拓展】fssil fuel　　　　　　　　化石燃料add fuel t the fire火上浇油fuel ne’s interest in激起某人对……的兴趣
【即学即练】(1)They are trying t find ____________fr cars.  他们正试图找一种更干净的汽车燃料。(2)同义替换。His experience arused (=______) his interest in becming a chef.
a cleaner fuel
【熟词生义】Hw China has fueled the fashinable imaginatin fr centuries? 几个世纪以来，中国是如何激发时尚想象力的?
v. 启迪, 刺激, 煽动
4. trend n. 趋势； 趋向；动向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.气候科学家警告说，如果我们不采取适当的行动，这种变暖趋势可能会继续下去，人类将付出更高的代价。
【知识拓展】the latest trend in　　　　……的最新潮流fashin trends时尚潮流tend t d sth. 倾向于做某事
【即学即练】(1)He always ______________ne extreme t the ther.  他总是倾向于从一个极端走向另一个极端。(2)网上购物在印度成为一种新趋势。译: __________________________________.  
tends t g frm
Online shpping is a new trend in India
5. bradcast vt.&vi. 播送； 广播； 传播 n. 广播节目, 电视节目 In fact, news reprts are frequently bradcast abut extreme rainstrms and heatwaves causing deaths and ecnmic lsses. 事实上，有关特大暴雨和热浪造成死亡和经济损失的新闻报道经常播出。
【知识拓展】radi bradcast　　　　　无线电广播the live bradcast f……直播be bradcast live进行直播
【即学即练】(1)Regular _______________began in 1920.  常规的无线电广播始于1920年。(2)In additin, I hpe the prgram _______________n Saturday evenings.  此外, 我希望这个节目能在星期六晚上播出。
radi bradcasts
will be bradcast
6. restrict vt. 限制； 限定； 束缚We as individuals can als reduce ur “carbn ftprint” by restricting the amunt f carbn dixide ur lifestyles prduce.我们作为个人也可以通过限制我们的生活方式产生的二氧化碳的数量来减少我们的“碳足迹”。
【知识拓展】restrict the number f　　　限制……的数量restrict neself t限制自己……(t是介词)withut restrictin没有限制
【即学即练】语法填空。(1)Her diet restricts her __ 1, 500 calries a day. (2) Jan 23: Wuhan declared temprary utbund (向外的) traffic __________(restrict). (3)Mr Smith has a limited incme __________________________different gds he can buy.  史密斯先生的收入有限, 这就限制了他能买的各种商品的数量。
restrictins
which restricts the number f
7. seize vt. 抓住； 夺取； 控制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.我们有责任抓住每一个机会，向每一个人宣传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问题。
【知识拓展】seize the pprtunity/chance　　抓住机遇/机会seize the pwer夺取政权【熟词生义】Althugh he had read the passage ver and ver again, he didn’t seize its general idea. 虽然他读了一遍又一遍，但还是没有理解大意。　( )
【即学即练】(1)Suddenly, a tall man driving a glden carriage ______(seize) the girl and tk her away, disappearing int the wds. (2)Yu shuld ________________________________, r yu will be regretful.  你应该抓住这次出国学习的机会, 否则你会后悔的。
seize the pprtunity t study abrad
8. There is little dubt that Earth is getting warmer and warmer.  毫无疑问, 地球正变得越来越暖和。【句式解构】there is little/n dubt that. . . 毫无疑问……, that引导的是同位语从句。There is n dubt that t realize a gal, ne needs nt nly knwledge but als gd persnalities. 毫无疑问，要实现一个目标，不仅需要知识，还需要良好的性格。There is n denying that students shuld learn smething abut hw cmputers wrk. 不可否认，学生应该学习计算机是如何工作的。
【名师点津】“there is n/little+抽象名词+that. . . ”是存在句, 其中there不能换成it。【即学即练 】语法填空。(1)At present, there is little dubt ____ the shrt message plays an increasingly imprtant rle in ur lives. (2)毫无疑问, 看电视会影响人们的行为举止。译: _________________________________________________________________________
There is n dubt that watching televisin can influence the way that peple
Yu can click here t add what yu want t addt. It is easy t change.
Yu can click here t add what yu want t add. It is easy t change.
认知词汇:basin,refrm,underg,penguin,mderate,imple-ment,annual,chas,trpical,jungle
拓展词汇：1.sunmit→submissin2.starve→starvatin→starving3.sustain→sustainable4.harmnius→harmny5.restrict→restrictin6.sensitive→sense→sensible
应用词汇：1.starve:starve fr,starve t death,starvatin,be starving fr2.sustain :sustain an interest,sustain lsses,sustain ne’s weight,sustainable develpment3. fuel:fssil fuel,add fuel t the fire,fuel ne’s interest in4.trend:the latest trend in,fashin trends,tend t d sth. 5.bradcast:radi bradcast,the live bradcast f,be bradcast live6.restrict:restrict the number f,restrict neself t,withut restrictin
There is little dubt that Earth is getting warmer and warmer.  毫无疑问, 地球正变得越来越暖和。【句式解构】there is little/n dubt that. . . 毫无疑问……, that引导的是同位语从句。
n behalf fhave an impact nbe trapped inin search f deal withas well asin respnse thuge amunts f take apprpriate actinsmake plicies
Ⅰ. 根据语境及汉语提示写出正确的单词1. He started t study _______ (生态学) and decided t devte his whle life t science. 2. The lazy bird had nthing in stre fr the winter, s it had t ______(挨饿). 3. During the 1960s, many ther famus rck grups _______ (发布) sngs abut winter. 4. He _________ (遭受) a serius wund in the stmach. 5. Higher-incme parents tended t have children played with puzzles mre _________(经常).
6. He is always watching CCTV news _________(广播) n current affairs. 7. S the gvernments in the wrld try t frbid cutting dwn the trees and _______(限制) the emissin f wastewater. 8. In my pinin, nly by facing difficulties bravely and ______(抓住) pprtunities can ne succeed. 9. The epidemic swept thrugh Nrth Africa and Eurpe and left families murning __________(遍及全球地). 10. My ______(政策) in my business is “Ask advice, but use my cmmn sense”.
Ⅱ. 完成句子1. He sent her sme rses, ________________________.  他给她送去了一些玫瑰, 还有一封信。2. Despite this fact, French still ________________________the English language.  尽管如此, 法语仍然对英语产生了影响。
alng/tgether with a letter
had an impact/influence n
3. Culture _______________r cmmunity with which we share cmmn expressins that shape the way we understand the wrld.  文化指的是一个我们与之共享共同表达方式的群体或社区, 这些共同表达方式塑造了我们理解世界的方式。4. It was 10 years f hard wrk that ___________________________________. 正是10年的努力工作使他在商业上取得了成功。 5. Our gvernment is trying ___________________________________________.  我们的政府正试图采取措施, 防止和控制污染。
refers t a grup
led t/resulted in his success in business
t take measures t prevent and cntrl pllutin