高中英语人教版 (2019)选择性必修 第三册Unit 3 Environmental Protection课文课件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课文课件ppt，共60页。PPT课件主要包含了课前·基础认知，课堂·重难突破，随 堂 训 练，词 汇 认 知，阅 读 自 测，词 汇 精 讲，句 型 剖 析，选词填空 ，on ，which 等内容，欢迎下载使用。
重点单词1.graph n. 图;图表;曲线图2.emissin n. 排放物;散发物;排放3.melt vi.& vt. (使)融化;熔化;软化4.seal n. 海豹5. release vt.& n.排放;释放;发布 6.methane n. 甲烷;沼气7. cmprehensive adj.全部的;所有的;详尽的 
8.wrldwide adv. 遍及全球地 adj. 世界各地的;影响全世界的9. trend n.趋势;趋向;动向 10. plicy n.政策;方针;原则 11.ftprint n. 足迹;(某物所占的)空间量;面积12. seize vt.抓住;夺取;控制 
词汇拓展1.starve vi.& vt.(使)挨饿;饿死→　starvatin　 n.挨饿;饥饿;饿死 2.eclgy n.生态;生态学→　eclgical　 adj.生态的;生态学的 3.habitable adj.适合居住的→　habitat　 n.(动植物的)生活环境;栖息地 4.sustain vt.维持;遭受;承受住→　sustainable　 adj.可持续的;合理利用的 
5.frequently adv.频繁地;经常→　frequent　 adj.频繁的;经常的 6.restrict vt.限制;限定;束缚→　restrictin　 n.限制规定;限制法规;约束 
重点短语1. carbn dixide 二氧化碳 2.fssil fuel 化石燃料(如煤或石油) 3.alng with 和……一起 4.have an impact n 对……有影响 5. refer t指的是 6.huge amunts f大量的 7.be trapped in被包裹在…… 8.take actins 采取行动 
9.result in 导致 10.take respnsibility fr为……负责任 
Step 1　Fast Reading一、快速浏览课文,将段落与其主旨大意相匹配1.Paragraph 1　 A.We need t d smething t reduce greenhuse gas 2B.The rise in temperature has caused natural 3C.Earth is getting warmer and 4D.A dead plar bear was fund,which alarmed sme 5E.Why is Earth getting warmer and warmer?
Step 2　Detailed Reading二、仔细阅读课文,选择最佳答案1.What directly caused the death f the plar bear mentined in paragraph 2?A.Extreme cldness.　B.Changeable f fd.D.Lw sea levels.
2.What des the third paragraph mainly tell us?A.What the “greenhuse effect” the glbal temperature rises the heat is released back int the “man-made” greenhuse effect is imprtant t us.
3.Accrding t scientists,the “natural” greenhuse effect 　　　. A.is what causes glbal warmingB.is beneficial t human beingsC.has nw becme a big prblemD.must be gt rid f in the lng run
4.What is the purpse f the last paragraph?A.T shw us the bad effects f glbal explain the meaning f “carbn ftprint” tell us t prevent disasters frm call n us t d ur bit t prtect ur planet.
1.【教材原文】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.(page 26)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。
考点starve vi.& vt.(使)挨饿;饿死starve t death 饿死starve sb int (ding) sth断绝食物(或资金)来源以迫使某人做某事starve sb/sth f/fr sth 使某人(或某物)得不到所需要的starve sb ut(f sth) 以断绝食物来源迫使某人出来starved adj. 饥饿的;缺乏的starvatin n. 挨饿;饿死
语境领悟(1)These peple will starve t death unless they receive help sn.除非马上得到援助,不然这些人会饿死。(2)The enemy tried t starve him int giving in.敌人试图断绝他的食物来逼他屈服。(3)But since then it has been starved f/fr resurces and islated frm the rest f the wrld.但是从那以后,它的资源开始变得匮乏,而且与世界的其他地方隔绝。
学以致用单句语法填空(1)They have sent sme bks and magazines t the cuntryside because children there are starving 　fr　　knwledge. (2)Many wild animals have been starved 　　t　　death because f lacking fd. (3)She is starving t lse (lse) weight s that she can wear the beautiful dresses that she is crazy abut. 
2.【教材原文】The heat is released back int space at lnger wave lengths.(page 27)这一热量以更大的波长被释放回大气层。考点release vt.& n.排放;释放;发布
语境领悟(1)He is releasing an album f lve sngs.他即将推出一张情歌专辑。(2)Firefighters tk tw hurs t release the driver frm the wreckage.消防队员花了两个小时将司机从汽车残骸中救出来。(3)Cal pwer statins release sulphur dixide int the atmsphere.煤电站将二氧化硫释放到大气中。
(4)The vide has sld three millin cpies in its first three weeks n release.该录像带推出前3周就卖出了300万盒。
学以致用单句语法填空(1)Brwn was released frm prisn after serving tw years f sentence. (2)Immediately n release,the film drew an audience f thusands. 
完成句子(3)三年以后,那个人被释放出狱。Three years later,the man　was　 　released　 　frm　 　prisn　. (4)该乐队的最新专辑将在下周发行。The band's latest album　will　 　be　 　released　 next week. 
3.【教材原文】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.(page 27)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。考点trend n.趋势;趋向;动向
语境领悟(1)(2022·新高考全国Ⅰ卷)Nw a team f researchers led by Damin Blasi at the University f Zurich,Switzerland,has fund hw and why this trend arse.现在,由瑞士苏黎世大学的Damin Blasi领导的一个研究小组已经发现了这种趋势是如何以及为什么会出现的。(2)This design represents a majr new trend in mdern art.这种设计反映了现代艺术的一种主要的新趋势。(3)He was trying t be really cl and trendy.他总想变得又酷又时髦。
学以致用单句语法填空(1)If we can achieve that,especially in ur new campuses,it will set a/the trend. (2)Tday infrmatizatin has becme the main trend in the curse f service develpment in the wrld. (3)It's a trendy (trend)magazine,which can lead fashin. 
完成句子(4)年轻人中有一种兼职就业的趋势。　There　 　is　 　a　 　trend　 twards part-time emplyment amng yung peple. (5)提早退休者有增加的趋势。There is 　a　 　grwing　 　trend　 twards earlier retirement. 
4.【教材原文】In fact,news reprts are frequently bradcast abut extreme rainstrms and heatwaves causing deaths and ecnmic lsses.(page 27)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。
考点bradcast vt.& vi.(bradcast,bradcast) 播送;广播;传播　n.广播节目;电视节目bradcast sth t sb/sth (向……)传播,乱传bradcast n/upn 用……广播;播放……的新闻bradcast live 现场直播;实况转播live bradcast 现场直播
语境领悟(1)He bradcast the secret t the whle schl.他将这个秘密传遍了全校。(2)The annuncement was bradcast n radi and televisin.通知已在广播和电视上发布。
(3)Thursday's meeting lasted mre than six hurs and was bradcast live n televisin and the Internet.周四的会议持续了六个多小时,并在电视和网络上进行现场直播。(4)There will be a live bradcast f the ftball match tnight.Dn't miss it!今晚将会有这场足球赛的现场直播。不要错过哦!
学以致用单句语法填空(1)Wuld yu please keep silent?The weather reprt is being bradcast (bradcast) and I want t listen. (2)The interview, bradcast (bradcast) live acrss the natin the ther day,attracted large numbers f viewers. (3)At that time there was n mdel fr such a bradcast in English using simple wrds. 
完成句子(4)这家广播电台将在10点钟广播这条消息。The radi statin will 　bradcast　 　the　 　news　 at 10 'clck. 
(5)每晚10:00她收听英语广播。She 　listens　 　t　 　the　 　English　 　bradcast　 at 10:00 every night. 
5.【教材原文】We as individuals can als reduce ur “carbn ftprint” by restricting the amunt f carbn dixide ur lifestyles prduce.(page 27)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”。考点restrict vt.限制;限定;束缚把……限制在……be restricted t限于
语境领悟(1)Having small children tends t restrict yur freedm.有年幼的孩子往往会限制你的自由。(2)The reprts are restricted t descriptins and give n pinins abut the facts.那些报道只限于记录事实,而未加以任何评论。(3)His parents are trying t make up t him fr the restrictins f urban living.他的父母正试图弥补他在城市生活的局限。
(4)Lcal cmpanies may apply a mre restrictive prcess if cnsidered apprpriate by that business.如果该公司认为合适,地方公司可以采用一种更严格的工作流程。
学以致用单句语法填空(1)Access t the club 　is restricted　(restrict) t members nly. (2)The hspital may restrict bkings 　t　 peple living lcally. 
完成句子(3)我限制自己每天只喝一杯咖啡。I 　restrict　 　myself　 　t　 ne cup f cffee a day. (4)这个城镇的车速不得超过每小时30千米。Speed 　is　 　restricted　 　t　 30 kilmetres per hur in this twn.
6.【教材原文】It is ur respnsibility t seize every pprtunity t educate everyne abut glbal warming,alng with its causes and impacts...(page 27)我们有责任抓住每一个机会,教育每个人了解全球变暖,包括其成因和影响……
考点seize vt.抓住;夺取;控制seize the chance/pprtunity 抓住机会 surprise 突袭……seize sb by the +身体部位 抓住某人的……seize n/upn 采用;抓住;利用 be seized with/by 被……侵袭
语境领悟(1)(2022·北京卷) Lking back,I nw see that this wuld be the first in a series f timely pprtunities that my ld self wuld have let pass,but that this new and mre cnfident Alice enthusiastically seized.现在回想起来,我发现这将是一系列及时的机会中的第一个,如果不是这个全新的、更加自信的爱丽丝热情地抓住了这些机会,以前的我将会错过这些机会。
(2)My brther tld me that he wanted t seize the pprtunity.我弟弟告诉我,他想抓住这次机遇。(3)The man wuld prbably seize him by the wrist and take the razr away.那人很可能会抓住他的手腕,把刮胡刀夺走。(4)Newspapers seized n the results as prf that glbal warming wasn't really happening.各报纸纷纷以此结果为证据来证明全球变暖并没有真正发生。
(5)Newspapers seized n the results as prf that glbal warming wasn't really happening.各报纸纷纷以此结果为证据来证明全球变暖并没有真正发生。
学以致用单句语法填空(1)His every remark is seized upn/n by the press. (2)I was suddenly seized with/by a feeling f great insecurity and lneliness. (3)The trp seized the city by surprise befre the enemies realised it. 
完成句子(4)他抓住我的胳膊,把我往后拉。He seized me by the arm and held me back. (5)他有点发烧。He was seized with/by a slight attack f fever. 
1.【教材原文】There is little dubt that Earth is getting warmer and warmer (see the graph).(page 26)毫无疑问,地球正变得越来越温暖(如图)。
句法分析本句是一个复合句。主句是There is little dubt,that引导的是同位语从句。There is little/n dubt that...毫无疑问……;dubt后面用that引导同位语从句;当dubt用于否定句和疑问句时,后面的从句用that引导;用于肯定句时,后面的从句用whether引导。
语境领悟(1)There was n dubt that the bxes were then put n a train fr Sydney.毫无疑问,这些箱子后来被装上火车运往悉尼。(2)There is little dubt that yur participatin will make ur uting mre enjyable.毫无疑问,你的参与会使我们的出游更加愉快。
(3)There is sme dubt whether they can satisfy ur general entrance requirements fr a physics degree.他们能否达到本校攻读物理学学位的一般入学要求,令人有点怀疑。
温馨提示dubt可做动词和名词。在否定句和疑问句中,dubt后跟that引导的宾语从句或同位语从句;在肯定句中,后接whether或if引导的宾语从句或whether引导的同位语从句。 I have n dubt that the autumn sprts meeting will be held in ur schl. 我确信秋季运动会将在我们学校举行。
He had his dubts whether they wuld give him anther chance t have a try. 他不能肯定他们是否会再给他一次机会试一试。 I dubt whether we will make a prfit ut f it. 我怀疑我们是否能从此事中获利。 I dn't dubt that he is telling the truth. 我毫不怀疑他在讲真话。
学以致用单句语法填空(1)Sme researchers believe that there is little dubt 　that　 a cure fr that disease can be fund. (2)　There　 is n dubt that the Amber Rm was lst in Wrld War . (3)There is sme dubt 　whether/if　 she will be able t repay the mney n time. 
句型转换(4)It's certain that he will cme t my birthday party.→　There　 　is　 　little/n　 　dubt　 that he will cme t my birthday party. (5)He is sure t succeed.→There is n dubt that 　he　 　will　 　succeed　. 
2.【教材原文】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.(pages 26-27)“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入大气层,使地表变暖。
句法分析the fact后面为that引导的同位语从句,说明fact的内容。that引导同位语从句时,只起连接作用,本身无意义,也不做成分。
语境领悟(1)She went t Spain despite the fact that the dctr had tld her t rest.尽管医生曾告诉她应该休息,但她还是去了西班牙。(2)Yur failure in the final exam lies in the fact that yu didn't attach enugh imprtance t yur English.你期末考试没及格的原因在于没有给予英语足够的重视。
(3)(2022·浙江卷) This variety,cupled with the fact that tiny frests grw up t ten times faster than standard frests,means they attract a rich abundance f wildlife.这种多样性,加上小森林比普通森林生长速度快十倍,意味着它们吸引了大量的野生动物。
学以致用单句语法填空(1)He is nt aware f 　the　 fact that there are still many pr peple in the wrld wh have nt enugh t eat. (2)The fact 　that　 he had nt said anything at the meeting surprised everyne. 
完成句子(3)如果不是因为她不会唱歌,我会邀请她参加聚会。If it were nt fr the fact 　that　 she　 can't　 sing　, I wuld invite her t the party. (4)在那个地区人口仍在增长是一个事实。　It　 　is　 　a　 　fact　 　that　the ppulatin is still increasing in that area. 
3.【教材原文】Greenhuse gases in the atmsphere,such as methane and carbn dixide,trap sme f the heat,keeping Earth's climate warm and habitable.(page 27)大气层中甲烷、二氧化碳等温室气体困住了部分热量,从而使地球保持气候温暖、适宜居住。句法分析keeping Earth's climate warm and habitable为动词-ing形式短语做状语表示结果。动词-ing形式做结果状语时通常放在句子后面。
语境领悟(1)He drpped the glass,breaking it int pieces.他把玻璃杯丢下去,使它摔成了碎片。(2)Her husband died ten years ag,leaving her with three children t lk after.她丈夫十年前去世了,撇下她和三个需要照顾的孩子。
(3)I thught he was making fun f me,and ran faster than ever,reaching the schlyard quite ut f breath.我想他在拿我开玩笑,我就越发跑得比以往更快了,到达校园时已经上气不接下气。
温馨提示动词-ing形式做结果状语与动词不定式做结果状语 动词-ing形式做结果状语,多表示一种“自然而然、顺理成章”的结果;动词不定式也可以做结果状语,多表示出乎意料的结果,常与nly连用。 He cut ff the electricity quickly,preventing an accident. 他迅速切断了电源,防止了一起意外事故。 I hurried there nly t find that all f them had gne. 我匆匆赶到那里,结果发现他们都走了。
学以致用单句语法填空(1)The alarm clck indicating it was time fr me t get up went ff,　interrupting　(interrupt) my gd dream. (2)The glass drs have taken the place f the wden nes at the entrance,　letting　(let) in the natural light during the day. (3)He ran t the statin nly 　t find　(find) the train had left. 
完成句子(4)一架小型飞机坠毁在城东5千米处的山坡上,机上4人全部遇难。A small plane crashed int a hillside five kilmetres east f the city,　killing　 　all　 　fur　 　peple　 n bard. (5)有许多国家踢足球,这使它成为世界上最流行的体育运动之一。Ftball is played in many cuntries,　making　 　it　 　ne　 　f　 　the　 　mst　 　ppular　 　sprts　 in the wrld. 
一、单词拼写1.The 　bradcast　(广播节目) was recrded,nt live. 2.Yu wuld 　starve　(挨饿) if yu dn't wrk. 3.T keep 　eclgy　(生态) in balance is ur duty. 4.They had sufficient fd t 　sustain　(维持) life. 5.She has a 　cmprehensive　(全面的) grasp f the subject. 6.　Seize　(抓住) the chance,therwise yu'll regret it. 
7.Plice have 　released　(发布) a picture f the man they want t questin. 8.The gvernment must make new 　plicies　(政策) t reduce unemplyment. 
9.The 　trend　(趋势) at the mment is twards a mre natural and less made-up lk. 
starve t death　refer t　be trapped in　take actin　result in
1.This resulted in a cnsiderable lss t the exchequer(财政部). 2.Unluckily he was trapped in the elevatr fr days. 3.Study the example and refer t the explanatin belw. 
4.Tens f thusands f peple starved t death because f the civil war. 5.They tk actin t speed the new law thrugh Parliament(国会). 
三、课文语篇填空In recent years,climate change has had a great impact 2013,the whle wrld 2.__________ (shck) by a news pht f a dead plar bear n Nrway's Arctic island f Svalbard.Due t the rise in temperature,the plar bear seemed 3.__________(die) frm lack f fd. 
was shcked
t have died
Accrding t climate scientists,a key climate prcess, 4.__________is called the “greenhuse effect”,includes the “natural” greenhuse effect and the “man-made” greenhuse effect.The frmer refers t the fact that heat frm the sun 5.__________ (enter) the atmsphere and warms Earth's surface.Greenhuse gases in the atmsphere trap sme f the heat,6.__________(keep)Earth's climate warm and habitable. Hwever,the latter has becme 7.__________big prblem. When peple burn fssil fuels,mre heat energy is trapped in the atmsphere and causes Earth's surface temperature t rise 8.__________ (quick).