高中英語(yǔ)人教版 (2019)選擇性必修第三冊(cè)Unit 3 Environmental Protection優(yōu)秀ppt課件-課件下載-教習(xí)網(wǎng)

1. What can yu see in the picture?
2. What is the cause f this phenmenn?
Glbal warming
melting glacier
地球能滿(mǎn)足人類(lèi)的需要，但滿(mǎn)足不了人類(lèi)的貪婪。
Earth prvides enugh t satisfy every man’s needs, but nt every man’s greed.
1.What happened t the earth ver the years?
glbal warming
animals dying
Glaciers melting
extreme weather patterns and disasters
2. What kind f extreme weather patterns and disasters d yu knw f ?
sea level rise,Tsunami, flds, typhn, trnad, landslides, sandstrms,rainstrm,thunderstrms,vlcanic eruptin , hail, heatwaves, cld current, hail,drught,fire...
3. What’s the mst imprtant reasn f them?
Climate Change
Reading and thinkingClimate Change Requires The Wrld’s Attentin
By the end f this class, we will be able t1. knw the causes and cnsequences f climate change.2. explre practical ways t address climate change.3. figure ut effective infrmatin n graphs and diagrams.
Learning bjectives
Lk at the graph. What infrmatin can yu get frm it?
The earth is becming warmer and warmer.
Pre-reading
The plar bear (北極熊) was skin and bnes and starved t death.
What may be the cause f the death f the plar bear?
What can yu see in the pht?
Glbal warming causes the melting f icebergand sme plar bears may have suffered frm thelack f fd.
In the expsitry text, the authrs smetimes use sme graphs r diagrams in their essays in rder t cnvince their readers.
Fast-reading:Read fr the main idea and the structure.
Task 1:Match the main idea with each part.
Cnsequences
the main idea and the structure.
Task 2: Find the key sentence f each paragraph
Careful-reading
Task 3: Read Para 2 and answer the questins:
Find the cause and effect that can shw hw climate change has influenced the plar bear’s life?
climate change
lw sea-ice levels
bears culd nt____
had t_____________________ find fd
______t death
its dead bdy fund
travel greater distances t
What’s the rt cause f this series？
Evidence (para.1-2)
climatechange
Evidence 1:____________________
Evidence 2:_____________________
Evidence 3: ____________________
Evidence 4:________________
a warming cean and atmsphere
melting ice
rising sea levels
a dead plar bear
The ________ is getting warmer and warmer.
The cause f the increase in the glbal average surface temperature
Find the key sentence f Para 3
Causes (para.3)
Heat frm the sun enters the __________ and warms Earth’s __________ as _________-wave radiatin.
Keeping Earth’s warm and_____________
Peple prduce huge amunts f_________ greenhuse gases by burning_____________.
A big prblem
Mre ________ energy is trapped in the atmsphere and causes Earth’s surface temperature t ________ quickly.
fssil fuels
Greenhuse Effect
Task 4: Read Para 3 and fill in blanks:
Can yu 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 diagramDiagrams 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.
The cnsequences f the rise in temperature
In Para 4, why did the authr mentin the climate scientists’ warning?
Because it is essential that we take actin and s it needs t be brught t everyne’s attentin.
Find the key sentence f Para 4
The rise in temperature
Task 4: Read Para 4 and fill in blanks:
cnsequences

extreme weather
natural disasters
nt nly .but als .
extreme and causing deaths and ecnmic lsses
causing serius damage
csting human lives
slutns (para.5)
The slutins t reducing greenhuse gas emissins
Find the key sentence f Para 5
Climate is changing.
Ptential further changes
actins t tackle the issue
The develpment f the passage.
[?k?sp?z?t?r?]
Expsitry writing
本文按照“證據(jù)—原因—危害—措施”的邏輯順序展開(kāi)，環(huán)環(huán)相扣，步步深入。標(biāo)題Climate Change Requires the Wrld’s Attentin點(diǎn)明了作者的訴求：氣候變化對(duì)地球生態(tài)系統(tǒng)的影響是巨大的，需要全人類(lèi)共同關(guān)注和面對(duì)。文本以現(xiàn)在時(shí)態(tài)和將來(lái)時(shí)態(tài)為主，強(qiáng)調(diào)文章的現(xiàn)實(shí)意義及對(duì)將來(lái)不利后果的預(yù)測(cè)。
Earth prvides enugh t satisfy every man’s needs, but nt every man’s greed. — Mhandas K. Gandhi
Such as shelter, air, fd, water and the means t d smething prductive and meaningful.
Greed is a desire that can never be satisfied.
Needs mean all basic living things
Over lgging, plluted water resurces …
Earth prvides enugh t satisfy every man’s needs, but nt every man’s greed.— Mhandas K. Gandhi
地球能滿(mǎn)足每個(gè)人的需要，但不能滿(mǎn)足每個(gè)人的貪婪。
we shuld cherish what we have and d whatever we can t make the wrld a better place, leaving the green muntains and blue waters fr ur ffsprings.
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". 青山綠水就是金山銀山。If we dn't save water, the last drp f water will be ur tear. 如果我們不節(jié)約用水，那么最后一滴水將會(huì)是我們的眼淚。When the sky becmes blue again and the rivers becme clean, we'll live a healthier and happier life. 當(dāng)天空再次變得湛藍(lán)，河水變得清潔，我們會(huì)過(guò)上更健康、更快樂(lè)的生活。
Let’s keep the wrds in mind:
Climate change
Scan: mind map(hmewrk checking)
Evidence1:_______Evidence2:_______Evidence3:_______
example_______
natural greenhuse effect
____________________
_____________
gvernment: _________
__________: _______
functin:____
prblem:____
result:_______
Scan and finish the mind map
_______________
result: ______________
a warming cean and atmsphere
melting ice
rsing sea levels
a dead plar bear
man-made greenhuse effect
individuals
keeping Earth’s warm and habitable
Causing Earth’s surface temperature t rise quickly.
serius damage, csting human lives, ecnmic lsses
make plicies and take apprpriate actins and measures.
reduce ur “carbn ftprint”
Grup discussin
As a student, what can we d t reduce ur “carbn ftprint” ?
plant mre trees
Take the stairs instead f elevatr
Dn't litter
G t schl by bike instead f by car/bus
Turn ff the lights when leaving
Use handkerchief instead f facial tissue
Use basket r envirnmental basket bag instead f plastic bag
every small step will make a difference.
Take the stairs instead f the elevatr
What can we d t tackle it?
Dn’t litter!
G t schl r wrk by bike /bus instead f driving a car.
Use a handkerchief instead f tissues
Use reusable baskets r ec-friendly bags instead f plastic bags; buy things ecnmic with energy; use recyclable gds r items.
1. Surf the Internet and find 3-4 reasns why peple burn fssil fuels.?2. Read Paragraph 3 again and create yur wn diagram t describe hw the greenhuse effect wrks.?3. Finish part f the students’ wrksheet.?.
climate change 氣候變化the wrld's attentin全世界的關(guān)注knw abut...知道...;了解 decades 數(shù)十年來(lái); 幾十年來(lái)There is little dubt that ...毫無(wú)疑問(wèn) warmer and warmer 變得越來(lái)越暖alng with... 和…一起;隨著; 除…以外（還）; 連同 ice and rising sea levels 冰的融化和海平面的上升a dramatic change in the glbal climate 全球氣候的劇烈變化prvide evidence f ...提供了...的證據(jù)
be shcked by ...被震驚 a news pht f ...一張...的新聞?wù)掌琣ll that remained f the plar bear 北極熊所剩下的一切skin and bnes 皮膚和骨頭frm the psitin f its dead bdy 從它的尸體的位置來(lái)看appear t have starved and died 似乎已經(jīng)餓死了claim that ...聲稱(chēng)... mean that...意味著 sea-ice levels caused by climate change 由氣候變化引起的低海冰水平as befre 如以前; 依舊; 照舊 hunt seals 捕獵海豹travel greater distances 走很遠(yuǎn)的距離this alarming case 這個(gè)令人震驚的案例the increase in ...在...方面的增長(zhǎng)have an impact n…對(duì)…有影響
the glbal average surface temperature 全球平均表面溫度Climate scientists 氣候?qū)W家們a key climate prcess called the "greenhuse effect " 一個(gè)稱(chēng)為“溫室效應(yīng)”的重要?dú)夂蜻^(guò)程tw cmmn meanings 兩個(gè)普遍的含義refer t ...指的是；描述；提到；查閱refer t the fact that... 指的是……這個(gè)事實(shí)enter the atmsphere 進(jìn)入大氣層as shrt-wave radiatin 以短波輻射的形式be released back int space 被釋放回太空at lnger wave lengths 以更長(zhǎng)的波長(zhǎng)trap sme f the heat 吸收部分熱量
keep Earth's climate warm and habitable 使地球的氣候溫暖宜居withut this prcess 沒(méi)有這個(gè)過(guò)程sustain life 維持生命huge amunts f +U/C 大量的 amunts f extra greenhuse gases 大量額外的溫室氣體burn fssil fuels 燃燒化石燃料be trapped in ...被困在 Earth's surface temperature t rise 引起地球表面溫度上升
There is strng and cmprehensive evidence that ...有充分而全面的證據(jù)the rise in temperature 溫度的升高lead t ...導(dǎo)致 increase in ... 的增長(zhǎng)/增加extreme weather 極端天氣和自然災(zāi)害natural disasters wrldwide 全球自然災(zāi)害cause serius damage 造成嚴(yán)重破壞cst human lives 造成人類(lèi)生命損失take apprpriate actins 采取適當(dāng)?shù)男袆?dòng)this warming trend 這種變暖趨勢(shì)a higher price t pay 要付出更高的代價(jià)cause deaths and ecnmic lsses 造成死亡和經(jīng)濟(jì)損失
cntinued greenhuse gas emissins 持續(xù)的溫室氣體排放result in 導(dǎo)致...；造成... further warming 進(jìn)一步變暖a change in/t sth .. 的變化/改變/變革lng-lasting changes t the glbal climate 全球氣候的持久變化 cnsider ding sth 考慮做某事 make plicies 制定政策take apprpriate actins and measures 采取適當(dāng)?shù)男袆?dòng)和措施reduce greenhuse gas emissins 減少溫室氣體排放as individuals 作為個(gè)人 n this planet在這個(gè)星球上reduce ur "carbn ftprint"減少我們的“碳足跡”restrict the amunt f carbn dixide 限制二氧化碳的量It is ur respnsibility t d sth 這是我們的責(zé)任去做 every pprtunity t d sth 抓住每個(gè)機(jī)會(huì)做某事alng with its causes and impacts 及其原因和影響the mst serius issue affecting all f us 影響我們最嚴(yán)重的問(wèn)題

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