2020-2021新教材高中英語UNIT3 學(xué)案課時(shí)作業(yè)新人教版選擇性必修第三冊

UNIT3ENVIRONMENTALPROTECTION閱讀教材P中材料，選出佳選項(xiàng)．WhichisnotthecauseoftheLiRiver'spollution?A．Manytourboats.B．Morehouseholdandcommercialwaste.C．Toomanyfishspecies.D．Morechemicals.．Accordingtothepassage，whichisnotthemeasuresthathavebeentakentoreducethepollutionoftheA．Preservingnewgeneration.B．Theconstructionofwastewatertreatmentfacilities.C．Settingupstrictregulations.D．Spreadingenvironmentalawareness.．Whatdoesthewriterthinkofthemeasuresthattaken?A．Effective.C．Useless.[答案]1CAA

B．Harmless.D．Opposed.andPhrases知識要1onbehalfof代表(代替某[教材原句P]I'mdoingaonbehalfofmyschoolaboutglobalwarming.我代表我的學(xué)校做一個(gè)關(guān)于全球變暖的項(xiàng)目。[例1]Myfathercannotbe，butItothankonbehalfofhim.我父親不能前來，我代表他向你們致謝。[例2]Onofthedepartmentwouldliketothankyouall.我謹(jǐn)代表全系感謝大家。[造句]

代理人代表他的委托人說話。Theagentspokeonbehalfhisprincipal.[知識拓展onbehalf＝onsb.'sbehalf

inbehalfof＝insb.'sbehalf(國英)都可表示“做某人的代表或代言人；為某人之利益”。[即學(xué)即練單句語法填空①Ipaidthemoneyonyour(you)②Shegaveapianorecitaloncharity's知識要2sensitive敏感；善解意的；靈敏的[教材原句P]Whyisnuclearpowerasensitivetopic?為什么核能是一個(gè)敏感話題？[例1]Sheisverytootherpeople'sfeelings.她很能體諒他人的感情。[例2]Healthcareisapoliticallysensitiveissue.醫(yī)療衛(wèi)生是政界的一個(gè)敏感問題。[造句]

證券市場StockExchange)對局變化非常敏感。TheStockExchangeisverysensitivetopoliticalchange.[知識拓展(1)besensitiveabout/to...besensitiveof...Itissensitiveofsb.to(2)sensibleadj.

對……敏感的意識到；認(rèn)識到某人做某事是正確的明智的[即學(xué)即練單句語法填空①Peoplemustbesensitivetothispossibilitywhentheymakevolunteeractivitiesamust.②Sheisverysensitiveaboutherappearance.③Ithinkthesuggestionissensible(sense)[小片段助記]Itissensibletoavoidsensitivetopics.Becausewhenaresensitiveofinfluence，itwillbetoolate.知識要3disposal去掉清除；處理[教材原句P]Newruleswerealsointroducedregardingtourboatroutesandgarbagedisposalmethods.還引進(jìn)了有關(guān)旅游船路線和垃圾處理方法的新規(guī)則。[例1]Afewhourslaterbombdisposalexpertsdefusedthedevices.幾小時(shí)以后拆彈專家拆除了該爆炸裝置。[例2]Doyouapproveofmydisposalofthesefoldsinthecurtain?

你贊同我在窗簾中折這些褶嗎？[造句]

安全處理核廢物是個(gè)大問題。Thesafedisposalofnuclearwasteamajorproblem.[知識拓展(1)atone'sdisposal(2)dispose.disposeofsb./sth.

任某人處理；供某人任意使用；由某人自行支配排列；布置；安排；使傾向于；使有意于；使易于應(yīng)付/解決處理某(某事[即學(xué)即練單句語法填空①Ihaveknownhowtodispose②Doyouhavethisinformationatdisposal?知識要4inspection檢；查看；視察[教材原句P]Atthe，theystartedtocarryoutregularlyandfinetouristorganisationsforabuses.與此同時(shí)，他們開始定期進(jìn)行檢查，并對濫用權(quán)力的旅游組織進(jìn)行罰款。[例1]Theheadmasterwentonofinspectionofalltheclassrooms.校長巡查了所有教室。[例2]Engineerscarriedoutainspectionofthetrack.工程師對軌道進(jìn)行了徹底檢查。[造句]

可否把你的行李指給我們檢查？Wouldyoumindpointingoutyourluggageforinspection?[知識拓展(1)carryoutaninspection(2)inspect.inspect...for...

展開調(diào)查檢查；視察檢查/視察[即學(xué)即練單句語法填空①Extensivetextshavebeencarriedoutthepatient.②Howwillthefinalproductbeinspectedforquality?知識要5tolerate忍受包容；容許[教材原句P]Thevillagerscouldnotoleratethesituation.村民們再也不能忍受這種情況了。[例1]Thissortofbehaviourwillbetolerated.這種行為是不能容許的。

33[例2]Idon'tknowhowyouthatnoise!我不知道你怎么能忍受那樣的噪音！[造句]

對疼痛的忍受力因人而異。Theabilitytotoleratepainvariesfrompersontoperson.[知識拓展(1)tolerate(doing)sth.(2)tolerance.havenotoleranceof/forsth.(3)tolerantadj.betolerantof/towardssb./sth.

容忍(做)某事容忍；寬容不能容忍某事/物寬容的；容忍的忍受、寬容某人某事[即學(xué)即練單句語法填空①Icouldnottoleratetheirmaking(make)upanyexcusesforwhatthey②Someplantsaretolerant(tolerate)ofheat.③Shehadnotolerance(tolerate)forherdeskmate'sshortcomings.[名師點(diǎn)津tolerate/stand“忍受”，后只動(dòng)詞ing形作賓語bear/endure可動(dòng)詞ing和動(dòng)詞不定式兩種形式作賓語。[小片段填空]Ihavenotolerancewhathesaidatthe，eventhoughIcantoleratehisbadtemper.(tolerate)Patterns重點(diǎn)句式with＋＋v結(jié)構(gòu)[教材原句P]Waterpollutionincreased，morehouseholdandwasteendingupintheriver.水污染水平升高，更多的家庭和商業(yè)廢物最終流入河流。句式分析：本句中的“withmorehouseholdcommercialwasteendingupintheriver”是“withn.＋.ing”結(jié)構(gòu)。[例1]Iwon'tbeablegoonholidaywithmymotherbeingill.因?yàn)閶寢層胁。覠o法去度假。[例2]Withthecrowdscheering，theydrovetothepalace.在人群的歡呼聲中，他們驅(qū)車來到皇宮。[造句]

他沒熄燈就睡著了。Hefellasleepwiththelampburning.[知識拓展

復(fù)結(jié)構(gòu)還常用于以下情形：(1)with＋賓語＋形容詞(2)with＋賓語＋副詞(3)with＋賓語＋名詞(4)with＋賓語＋介詞短語(5)with＋賓語＋過去分(短語)(6)with＋賓語＋不定式(短語)[即學(xué)即練單句語法填空①Hesattherewithhiseyesclosed(close)．②Withsomanypeoplehelp(help)aresuretofinishitintime.③Shesaidgoodbyetearsineyes.排序題排序題的考查形式是在選項(xiàng)中列舉一些具體的事實(shí)，然后對這些事實(shí)進(jìn)行排序。[例題分析Aschoolgirlsavedherfather'sbykickinghimthechestafterhesufferedaseriousallergic過的reactionwhichstoppedhisIzzy，restartedfatherColm'sheartby踩onhischestafterhefelldownandstoppedbreathing.Izzy'smother，Debbiecalled999butIzzydoctorswouldneverarriveintimetosaveherfather，soshedecidedtouseCPR.Howeverquicklydiscoveredherarmsstrong，soshestampedonherfather'schestinstead.[方技巧]

要求考生根據(jù)事件發(fā)生的先后順序和句子之間的邏輯關(guān)系，找出事件發(fā)生發(fā)的正確順序解題方法采用“首尾定位法”先找出第一個(gè)事件和最后一個(gè)事件，迅速縮小選擇范圍，從而快速選出正確答案?！鬢hat'stherightorderoftheevents?①IzzykickedColm.②Debbiecalled999.③IzzylearnedCPR.④Colm'sheartstopped.A．③①②④C．③④②①[答案]C

B．④②③①D．④③①②

[即學(xué)即練請快速排出下列事件的正確順序Peoplecanuseahometomaketheirlists.Onceatstore，ashoppercanuseapreferredcustomercardtostartasystemthatwillorganizethetriparoundthestore.Iflookingfor，youtypeinthewordorpickitfroma，andamapwillappearonscreenshowingwhereyouandwhereyouthem...◆Whichthefollowingisthecorrectorderofshoppingwiththecomputerizedshoppingcarts？a．Startthesystem.b．Makeashoppinglist.c．Findthethingsyouwant.d．Gotoaselfcheckoutstand.A．a(chǎn)bdcC．a(chǎn)cbd

B．bacdD．bcad[案BUNIT3ENVIRONMENTALPROTECTION課分作()Ⅰ.單句語法填空．Shesaidshewouldgo(go)therethenextday.．Itoldhimthathehadleft(leave)hisbookmyroom.．Thetoldustheearthmoves(move)aroundthesun.．JackaskedJohnwherehewasgoingwhenhemet(meet)himinthe．Shesaidshehadtheretoseethedoctordays．toldusthathungerandstarvation(starve)arereturningtotheircountry.．Theynotrestrictedtoworking(work)fororonedepartment.．Thereissomedoubtwhetherheisthebestmanforthejob.．Notonlyhebutallhisfamilyare(be)onconcerts.．Ialsosubmittotheboardoursuggestionsandrecommendations.Ⅱ.完形填空“Noneofusgetoutoflifebebraveandthankfulforallopportunitiesyou”Thosewere1wordssaidby18yearoldJake，acancerpatient.

BaileywasintheleadingpositionoftheStudents'Union.Theyoungmanhadplannedto2athishighschool'sendofyearceremony(典禮)schedule.3，justtheweek，hereceivedshockingnews.Afterseveralweeksnotfeelingwell，testsshowedthathehadafastgrowingformofcancer.Doctorssaid，without4，hewouldonlyhaveweekstolive，sotheydidn'tallowhimtotakepartintheevent.ButBaileyonhisuniformalongwithhis5facehishospitalbedtogivetheinspiringspeechtohis6.Withoutdoubt，hisappearanceshockedeveryoneattheceremony.Sittinginthe，beganto7hisideas.Heexpressedthatstrongwilledpersonwouldnoteasily8，nomatterhowhardlifewas.Atthe，Baileyencouragedhisschoolmatesto9theirtime.“Thefutureistrulyinourhands.ForgetabouthavingimpracticallongtermLet'sbe10toshorttermgoals”Hecontinued.“Wedon'tknowwheremightendup，orwhenwewillend，soworkwithprideis11us.”Whenthesenior12hisspeechwiththeschool's13“AltioraPetowhichmeansfightforhigherentireroomburstintocheers.14，Bailey'smessagewasheardloudandclear.Baileythenclosedhiseyes15thewords“Thankyou”．【語篇解讀】本文講述的是一18歲癌癥患者按原計(jì)劃在他高中的年終典禮上如期發(fā)言的故事。他表示，無論生活多么艱難，一個(gè)意志堅(jiān)強(qiáng)的人是不會(huì)輕易屈服的。．A.unbelievableC．inspiring

B．genuineD．a(chǎn)mazing

[根據(jù)“我們沒有人能活著離開活以要勇敢要謝你所擁有的所有機(jī)會(huì)”，這是一位18歲的癥患者說的，所以這些話是“令人受鼓舞的”，故選C。]．A.speakC．sing

B．chatD．debate

[這個(gè)年輕人按原計(jì)劃在他高中年終典禮上如期發(fā)言。故選。]．A.SoC．Besides

B．InsteadD．However

[根下文中的“testsshowedthathehadafastgrowingformofcancer”和上文的hadplanned可此處是轉(zhuǎn)折關(guān)系，就在一周前，他收到了令人震驚的消息選D．A.doubtC．treatment

B．hopeD．delay

[醫(yī)生說，如果不治療，他只能幾個(gè)星期。故選。]．A.determinedC．satisfied

BD．surprised

[根據(jù)后半句的“l(fā)efthishospitalbedtogivetheinspiringspeech”知，他“堅(jiān)決地”離開醫(yī)院去給他的同學(xué)做演講。故選A．A.friendsC．schoolmates

B．familyD．roommates

[他堅(jiān)決地離開醫(yī)院去給他的同做演講。故選C。]．A.explainC．share

B．formD．change

[坐在輪椅上，他開始分享他的法。故選C。]．A.turnupC．breakup

B．giveinD．cutdown

[他表示，無論生活多么艱難，個(gè)意志堅(jiān)強(qiáng)的人是不會(huì)輕易屈服的。結(jié)合句意可知答案為B．A.gainC．spend

B．treasureD．spare

[在演講中，Bailey鼓同學(xué)們惜時(shí)間。故選。]．A.devotedC．a(chǎn)dmitted

B．limitedD．lost

[bedevotedto“忠誠于……”答案為A。]．A.inplaceofC．inchargeof

B．infrontofD．insearch

[我們不知道會(huì)在哪里結(jié)束，也知道什么時(shí)候結(jié)束，所以要自豪地面對我們面前的一切。結(jié)合句意可知答案為B。]．A.replacedC．began

B．endedD．decorated

[當(dāng)那位高年級的學(xué)生以校訓(xùn)結(jié)他的演講時(shí)，。知答案為B。]．A.mottoC．rule

B．principleD．opinion

[考查名詞motto座銘principle原rule則opinion建。當(dāng)那位高年級的學(xué)生以校訓(xùn)結(jié)束他的演講時(shí)，可知答案為。]．A.FinallyC．Actually

B．ObviouslyD．Entirely

[顯然，Bailey傳達(dá)信息清晰響亮。然后Bailey上眼睛，嘴里說著“謝謝”?？芍鸢笧锽。]．A.mouthedC．recorded

B．typedD．wrote

[參見上題解析]Ⅲ.語法填空AsmalltowninNewZealandhasannounced(usual)plantobandomesticcatsinordertoprotectnativewildlife.Those2.currentlyowncatswillbeforcedtogivethemaway,accordingtotheplan.However,aftertheircatspassaway,theywillnotbeallowed(get)anothercatswillneedtohavemicrochips芯片4.(put)justbelowthesurfaceof5.skinstheycanbefoundatanytime.Villageofficialssaytheplan6.(need)becausedomesticcats7.(attack)wildanimalsinthearea.Becauseofthis,thenativewildlifeis(rapid)disappearing.NewZealandhaslisted150animalspeciesasbeingseriouslyendangeredandinneedof9.(protect)．Theseanimalsincludeakindofantthatonlylivesunderonekindofrock,andoflizardonlylives10.acertainarea.【語篇解讀】

新西蘭一個(gè)小鎮(zhèn)宣布了一項(xiàng)不尋常的計(jì)劃，禁止養(yǎng)貓，以保護(hù)當(dāng)?shù)氐囊吧鷦?dòng)物。因?yàn)榧邑堃恢痹诠粼摰貐^(qū)的野生動(dòng)物，造成該地區(qū)的野生動(dòng)物正在迅速消失。1unusual

[考查形容詞。句意：新西蘭一小鎮(zhèn)宣布了一項(xiàng)不尋常的計(jì)劃，禁止養(yǎng)貓保當(dāng)?shù)氐囊吧鷦?dòng)物后文內(nèi)容可知“項(xiàng)不尋常的計(jì)劃”填unusual2who

[考查定語從句連接詞。句意：據(jù)該計(jì)劃，目前擁有貓的人不會(huì)被迫將貓送人為語從句修飾先行詞those行詞在從句中作主語關(guān)代詞who3．toget

[考查非謂語動(dòng)詞。句意：然而他們的貓死后，他們將不被允許再養(yǎng)一只。短語beallowedtodosth.被允許做某事”后跟不定式，故填tget4put

[考查非謂語動(dòng)詞。句意：貓咪需要將微芯片放在皮膚表層以下，以便隨時(shí)被發(fā)現(xiàn)。固定結(jié)構(gòu)havesth.done故填過去分詞put。]5．the/their

[考查冠詞或物主代詞skins為名詞，此處可填冠詞，或填形容詞性物主代詞their指“貓咪的”。]6．isneeded

[考查動(dòng)詞時(shí)態(tài)語態(tài)。句意：村的官員說，這個(gè)計(jì)劃是必要的，因?yàn)?/p>

家貓一直在攻擊該地區(qū)的野生動(dòng)物句中主語plan與need成被動(dòng)關(guān)系時(shí)為一般現(xiàn)在時(shí)，故填is。]7．a(chǎn)ttacking

[考查動(dòng)詞時(shí)態(tài)語態(tài)。表示過去直做某事并可能持續(xù)到以后用現(xiàn)在完成進(jìn)行時(shí)，結(jié)構(gòu)為have/hasbeendoing主語是復(fù)數(shù)名詞，助動(dòng)詞用單數(shù)have，故填havebeenattacking或者用現(xiàn)在進(jìn)行時(shí)表示目前此時(shí)此刻的情況填areattacking8．

[考查詞性轉(zhuǎn)換。句意：正因?yàn)榇?，該地區(qū)的野生動(dòng)物正在迅速消失。disappear為詞，需要副詞修，故填rapidly。]9．protection

[考查詞性轉(zhuǎn)換。句意：新西蘭將150種動(dòng)列為嚴(yán)重瀕危物種，需要保護(hù)。為介后跟名詞作語，故填protection10．in[考介詞。句意：這些動(dòng)物包括一種只生活在一種巖石下的螞蟻和一種只生活在某一地區(qū)的蜥蜴。固定短語in“居住在……”，故填。UNIT3ENVIRONMENTALPROTECTIONⅠ.匹配詞義a．匹配下列單詞詞義()1.emission()2.fuel()3.worldwide()4.broadcast()5.policy()6.reform()7.submit()8.enterprise()9.restore()10.fine[答案]1IFJHG6—10CADEBb．匹配下列短語詞義()1.resultin

A．vt.&vi.提交；呈遞；屈服B．vt對……處以罰款C．vi.&vt.改革；使改；改造n．改革；變革改良D．公司；企業(yè)；事業(yè)E．vt恢復(fù)；使復(fù)原；修復(fù)F．燃料；刺激性言行G．政策；方針；原則H．vt.&vi.播送；廣播；傳播n．廣播節(jié)目；視節(jié)目I．排放物；散發(fā)物；排放J．a(chǎn)dv.遍及全球地.世各地的；影響全世界的A．許多；很多

()2.takeaction(out()4.dozensof()5.haveanimpacton(to()7.betrappedin()8.onbehalfof[答案]1—5FEGAB6—8CDHⅡ.默寫單詞．meltvi.&.．implementvt.．moderate..&.．a(chǎn)nnualadj.n.．volumen.．campaignnvi.&.．sensitiveadj.．nuclearadj．garbage.．ecologyn.

B．對……產(chǎn)生影響C．指的是D．被困在；陷入困境；陷入E．采取措施F．導(dǎo)致G．執(zhí)行；實(shí)施H．代表(代替某人(使)融；熔化；軟化使生效；貫徹；執(zhí)行適度的；中等的；溫和的緩和；使適中每年的；一年的年刊；年鑒量；體積；成書籍中)一卷運(yùn)動(dòng)；戰(zhàn)役參加運(yùn)動(dòng)；領(lǐng)導(dǎo)運(yùn)動(dòng)敏感的；善解人意的；靈敏的原子能的；核能的；原子核的垃圾；廢物生態(tài)；生態(tài)學(xué)Ⅰ.選詞填空restoretrendsensitivemeltsubmitcampaignworldwideundergo；policy．Thesnowhadmelted，butthelakewasstillfrozensolid.．Humouriswonderfulforreleasingtension.．Hisbookshavesoldmorethan20millioncopiesworldwide．．Thereisagrowingtrendtowardsearlierretirement.．Thehasadoptedafirmonshoplifting.．Somechildrenundergocompletetransformationwhenteenagers.．TheysubmittedtheirreportstotheChancelloryesterday.．Sheisverysensitivetootherpeople'sfeelings.

．Shemaynothavethemoneytomaintainorrestoreherhouse.．Todaypolicelaunchedacampaigntoaccidents.Ⅱ.語法填空之派生詞Overthreehundredpeoplehavediedstarvation(starve)sincethebeginningoftheyear.．Makingthehousehabitable(habit)amajorundertaking.．Thisiswhythefocusnowisonsustainable(sustain)development.．TheRoughGuidetoNepaliscomprehensive(comprehension)guidetoregion.．Ifrequently(frequent)usesunflowersassymbolsofstrength.．Thegovernmenthastoliftrestrictions(restrict)onpressfreedom.Itisaharmonious(harmony)communitywherepupilsarehappyindustrious.．Yetmuchoftheirsuccessreflectsgoodmanagementandgoodregulations(regular)．．Alltopassstrictinspection(inspect)beforetheygo．Histoleration(tolerate)ofherbehaviouramazedme.．Accordingtothescientistswhofounditsdead，allthatremainedofpolarbearwas“skinandbones”.據(jù)發(fā)現(xiàn)其尸體的科學(xué)家稱，北極熊僅存的只是“皮包骨頭”。．Expertsclaimedseaicelevelscausedbyclimatechangemeantthecouldnothuntsealsasbefore，soithadtotravelgreaterdistancesinordertofindfood.專家稱于候變化導(dǎo)致的海冰川位置低意味著這只熊不能像以前那樣捕獵海豹，因此它必須走更遠(yuǎn)的距離才能找到食物。．Climatescientistsoftenmentionakeyclimateprocesscalledthe“greenhouseeffect”hastwocommon：the“naturalgreenhouseandthe“manmade”greenhouseeffect.氣候?qū)W家經(jīng)常提到一個(gè)關(guān)鍵的過程，叫作“溫室效應(yīng)”，它有兩個(gè)共同的含義：“自然”溫室效應(yīng)和“人為”溫室效應(yīng)。．Greenhousegasesintheatmosphere，suchasmethaneandcarbondioxide，someheat，keepingEarth'sclimatewarmandhabitable.大氣層中的溫室氣體，如甲烷和二氧化碳，捕獲了一些熱量，保持了地球氣候的溫暖和宜居。

．Thereisstrongcomprehensiveevidencethattheriseintemperaturehasledtoanincreaseinextremeweatherandnaturaldisastersworldwideserious，butalsocostinghumanlives.有確鑿而全面的證據(jù)表明，氣溫上升導(dǎo)致全球極端天氣和自然災(zāi)害增多，不僅造成嚴(yán)重破壞，而且造成人員傷亡。名師圈點(diǎn)①decade．十年②graph．圖；圖表；曲線圖③atmosphere．大氣層；氛圍④meltvi.&使融；熔化軟化meltingice正在融化的冰⑤evidence．證據(jù)；根據(jù)⑥dramatic.巨的；令人震驚的；戲劇性的⑦Svalbard斯瓦巴群島(又斯瓦爾巴特、斯匹次卑爾根群)意為冷岸海岸。位于北極地區(qū)的群島是挪威最北界土范圍的屬地它坐落在歐洲大陸北方于挪威大陸與北極點(diǎn)兩者之間。⑧skinandbone皮骨頭⑨starve.&.(使挨；餓死starvation．饑餓；挨餓；餓死⑩claim.宣稱；聲明；斷言

adj使驚恐的；令人驚慌的；引起恐慌的haveanon...……產(chǎn)生影響ecologyaverage

n．生態(tài)；生態(tài)學(xué)adj.平均的n．平均數(shù)指的是；參考；查閱shortwave短的release.&.排放；釋放；發(fā)布

n．長；長度methane

n．甲烷；沼氣carbondioxide氧化碳eq\o\ac(○,21)habitableadj適合居住的eq\o\ac(○,22)sustainvt維持；遭受；承受住

eq\o\ac(○,23)extra額外的eq\o\ac(○,24)fossil．化石eq\o\ac(○,25)betrappedin被在；陷入困境；陷入eq\o\ac(○,26)comprehensiveadj全部的；所有的；詳盡的eq\o\ac(○,27)extreme.極度的；極端的eq\o\ac(○,28)worldwideadj遍及全球地eq\o\ac(○,29)appropriateadj.適當(dāng)?shù)模磺‘?dāng)?shù)膃q\o\ac(○,30)trendn．趨；趨向；動(dòng)向eq\o\ac(○,31)broadcast.&vi.播送；廣；傳播eq\o\ac(○,32)emission．排放物；散發(fā)物；排放eq\o\ac(○,33)resultin導(dǎo)eq\o\ac(○,34)eq\o\ac(○,)longlasting持久的；長期eq\o\ac(○,35)individualn．個(gè)人eq\o\ac(○,36)eq\o\ac(○,)carbonfootprint碳跡eq\o\ac(○,37)restrictvt限制；限定；束eq\o\ac(○,38)seizevt抓住；奪取；控制原文呈現(xiàn)CHANGEREQUIRESWORLD'SATTENTIONWehaveknownaboutclimatechangefordecades.ThereislittledoubtthatEarthisgettingwarmerwarmer(seethe．[1]Awarmingoceanand

alongwith

iceandrisingsealevelsprovideevidence

ofachangeintheglobal[1]Thereisnodoubtthat...…不容置疑的。In2013，alotofpeoplewereshockedbyanewsphotoofdeadpolarbearthat

wasfoundon[2]Norway'sArcticislandAccordingtothescientistswhofounditsdead，allthatremainedofthepolarbear“skinand

expertwhohasstudiedpolarbearsformanyyearsthatfromthepositionofitsdead，thebearappearedtohavestarvedanddied.Expertsclaimed

thatlowseaicelevelscausedbyclimatechangemeantthebearcouldnothuntsealsas，soittotravelgreaterdistancesinordertofindfood.This

caseshowedhowtheincreaseintemperatureanon

Earth's[2]that引定語從句，修飾adeadbear[3]who引定語從句修飾anexpert；that導(dǎo)賓語從句。Thenwhatiscausingtheincreaseintheglobalaveragesurfacetemperature?Climatescientistsoftenmentionkeyclimateprocesscalledthe“greenhouseeffect”，whichhastwocommon[4]:”greenhouseeffectandthe“manmade”greenhouseThe“naturalgreenhouseeffectrefersto

thefactthatheatfromthesunenterstheatmosphereandwarmssurfaceasshortwaveradiation[5]isreleasedbackintospaceatlongerwaveGreenhousegasesintheatmosphere，suchasmethaneandcarbondioxide，trapoftheheatEarth'sclimatewarmandhabitableeq\o\ac(○,.)eq\o\ac(○,)Withoutthisprocesscouldnotsustainlife.However“manmadegreenhouseeffecthasnowabigproblem.peoplehugeofextra

greenhousegasesbyburningfossilfuels，moreheatenergyistrappedintheatmosphereandcausesEarth'ssurfacetemperaturetorisequickly.[4]called...是過去分詞短語作語which引導(dǎo)限定性定語從句。[5]that引同位語從句，解釋thefactThereisstrongandcomprehensive

e