学年高中英语Unit4Globalwarming课时作业.docx
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学年高中英语Unit4Globalwarming课时作业
Unit4 Globalwarming
【导语】全球气温变暖给南极的企鹅带来了怎样的影响，你知道吗？
为了保护他们，我们应该怎么做？
Antarctica,thecoldestplaceonEarth,istoocoldformosthumans.It'sadifferentstoryforpenguins，though.SeveraltypesofpenguinsmaketheirhomeinAntarctica.Thebirdswalkwithshortstepsallovertheicycontinent.
However，theydon'tallhave“happyfeet”．SomeofAntarctica'spenguinsareendangered.Theanimals,huntforfoodinwatersoffAntarctica'scoasts.Theyusefloatingseaiceasaplacetorestwhiletheysearch.Inrecentyears,globalwarming,theslowriseofEarth'stemperature,hasbeencausingtheicetomelt.
“Globalwarmingisreducingtheamountoffoodforpenguinssothattheycan'tfindenoughtoeat,”scientistShayeWolfsaid.
Turninguptheheat
Humansmaybedirectlyresponsibleforthecontinent'stemperaturechanges,accordingtoanewstudyinthejournalNatureGeoscience.TemperaturesinAntarcticausuallydonotgoabovefreezing,or32degreesFahrenheit.Butlatelytheweatherhasbeenheatingup.
Peopleaddtoglobalwarmingwhentheydrivecarsoruseelectricity.Thatburnsfossilfuels,suchascoal，oil，andnaturalgas.TheburningoffossilfuelsgivesoffgasesthatwarmEarth.
TheharmfulgasesstayintheatmosphereaboveAntarctica,researcherssay.Theyfoundthatthewestsideofthecontinentisespeciallyaffectedbyglobalwarming.
ScientistsareconcernedaboutthepossibilitythatAntarctica'sicemaymeltmoreovertime.Theicycontinentisabout5millionsquaremiles.Itiscoveredbyglaciersandanicecap（冰冠）about7，100feetthick.Iftheicemelts,thatcouldcausesealevelstorisearoundtheworld.Highersealevelscouldleadtodangerousfloodinginsomecountries.
CoolfixforAntarctica
ExpertsarehopefulthatconditionsinAntarcticacanbeimproved.Theysaypeoplecanreduceglobalwarmingbyusingcarsandelectricitylessoften.Evenkidscanhelp.Wolfsuggests，“Talktoyourfriendsandfamilyaboutglobalwarming,howitisharmingpenguins,andhowimportantitistostopglobalwarmingtoday.”
【词海拾贝】
1．Antarctican．南极洲
2．penguinn．企鹅
3．fossiln．化石；生物
4．glaciern．冰河；冰川
【问题思考】
1．Whycan'tpenguinsfindenoughfoodtoeat?
_______________________________________________________
答案：
Becauseglobalwarmingisreducingtheamountoffoodforthem.
2．Whomaybedirectlyresponsibleforglobalwarming?
_______________________________________________________
答案：
Humans.
Ⅰ.将单词与其正确释义连线
1．consume A．图表；曲线图
2．graphB．现象
3．phenomenonC．燃料
4．fuelD．平均的
5．trendE．趋势；倾向
6．mildF．温和的；温柔的
7．consequenceG．环境；情况
8．circumstanceH．贡献
9．averageI．消费；消耗
10．contributionJ．结果
答案：
1－I 2－A 3－B 4－C 5－E 6－F 7－J
8－G 9－D 10－H
Ⅱ.根据所给汉语提示写出单词
1．____________n．洪水；水灾
2．____________vt.反对；反抗
3．____________adj.平稳的；持续的
4．____________adj.分布广的；普遍的
5．____________vt.拥护；提倡，主张
6．____________n．污染；弄脏
答案：
1.flood 2.oppose 3.steady 4.widespread
5．advocate 6.pollution
Ⅲ.根据英语释义写出单词
1．________：
aquicklook
2．________：
anamountoranumberofsth
3．________：
topaymoneyregularlytosupportacharity
4．________：
toexpresssomethinginspeechorwriting，
especiallyinadefiniteorformalway
5．________：
happeningorchosenwithoutanydefiniteplan，
aimorpattern
6．________：
totakeaparticulardirection
7．________：
asuddeneventresultingingreatlossand
misfortune
8．________：
thelimitsbetweenwhichsthvaries；asetof
productsofaparticulartype
答案：
1.glance 2.quantity 3.subscribe 4.state
5．random 6.tend 7.catastrophe 8.range
Ⅳ.选用短语的适当形式完成句子
keepon；beopposedto；comeabout；resultin；subscribeto；goup；quantitiesof；evenif
1．Therearelarge_______________________________raininthisarea.
答案：
quantitiesof
2．Doyouknowhowglobalwarming____________________?
答案：
comesabout
3．Ihavenever________________theviewthatschooldaysarethehappiestdaysofyourlife.
答案：
subscribedto
4．Ifyouwanttomakethekite__________________，pullthestringhard，andthenreleaseitslowly.
答案：
goup
5．Hiscarelessspeech____________________________muchargument.
答案：
resultedin
6．We___________________thepracticeofpowerpoliticsbetweennations.
答案：
areopposedto
Ⅴ.领会句子所用的句型并译成汉语
1．Thatprobablydoesnotseemmuchtoyouorme，butitisarapidincreasewhen_compared_toothernaturalchanges.
_______________________________________________________
_______________________________________________________
答案：
这个数值对你我来说可能是无所谓的，但是跟其他自然变化相比较而言，这却是一种快速的增长。
2．There_is_no_doubt_thattheearthisbecomingwarmer（seeGraph1）andthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.
_______________________________________________________
_______________________________________________________
答案：
毫无疑问，地球是在变暖（见表一），而地球变暖正是人类活动导致的，并非是一种无规律的自然现象。
3．Withoutthe“greenhouseeffect”，theearthwould_beaboutthirty－threedegreesCelsiuscoolerthanitis.
_______________________________________________________
_______________________________________________________
答案：
如果没有“温室效应”，地球温度将比现在低大约33摄氏度。
课文表层理解
Ⅰ.判断正（T）误（F）
1．Thetemperatureinthelastcenturydidnotseemtoincreasemuch.（T）
2．Everyonebelievesthatglobalwarmingiscausedbytheactivityofhumans.（F）
3．JaniceFosterbelievesthatshecanmeasurethefutureglobalriseintemperature.（F）
4．Theriseincarbondioxideiscausingasteadyincreaseinglobalwarming.（T）
5．GeorgeHambleybelievesthatglobalwarmingwilldogoodratherthanharmtotheearth.（T）
6．Itisclearwhattheeffectsofglobalwarmingwillbe.（F）
Ⅱ.读课文回答问题
1．Whatdotheythinkaboutglobalwarming？
Dotheyagreewithoneanother?
_______________________________________________________
答案：
Therearesomeverydifferentattitudesamongscientiststowardsthisissue.Somethinktheeffectswillbeterrible,whilesomeothersbelievethatweshouldnotworryaboutit.
2．Whatarethetwographsaboutinthetext?
________________________________________________________________________
答案：
ThefirstgraphshowsthetemperatureincreaseofonedegreeFahrenheitbetween1860to2000.Thesecondgraphshowsthecarbondioxidecontentintheatmospherefrom1957to1997.
3．Whatisthemaintopicofthearticle?
_______________________________________________________
答案：
Globalwarming/thewarmingoftheearth.
Ⅲ.表格填空
Theburningof1.________likecoal，naturalgasandoiltoproduceenergy.
Duringthe20thcenturythetemperatureoftheearthroseabout2.________degreeFahrenheit.Thelevelsofcarbondioxidehave3.________greatlyoverthelast100to150years.CharlesKeelingfoundthatthecarbondioxideintheatmospherewentupfromaround4.________partstoaround370partspermillionbetween1957and1997.
DrJaniceFostersaysthattheamountofwarmingcouldbeaslowas1to1.5degreesCelsius，butitcouldbeashighas5degreesoverthenext5.________years.
Theclimatecouldbeveryserious
Ariseofseveralmetresinthe6.________
Severestorms,floods，7.________，famines.
Thespreadofdiseases.
Thedisappearanceof8.________
Weshouldnotworryabouthighlevelsofcarbondioxideintheair.Itwillmakeplantsgrow9.________；cropswillproduce10.________；itwillencourageagreaterrangeofanimals.
答案：
1.fossilfuels 2.one 3.increased 4.315 5.100
6．sealevel 7.droughts 8.species 9.quicker 10.more
课文深层理解
Ⅰ.读课文匹配段落大意
1．Para1 A．Thecauseoftheearth'sbecomingwarmer
2．Para2B．Theconsequenceofburningfossilfuels
3．Para3C．Theincreaseofcarbondioxide
4．Para4D．Globalwarmingwillgoon
5．Para5E．Puzzlesaboutglobalwarming
6．Para6F．Differentattitudestoglobalwarming
7．Para7G．Anintroductiontothepassage
答案：
1.G 2.A 3.B 4.C 5.D 6.F 7.E
Ⅱ.阅读P26～27的Reading部分，选择最佳答案
1．Howmuchdidthetemperatureriseinthe1900s?
A．OnedegreeFahrenheit. B．OneCelsius.
C．Twodegrees.D．TwodegreesFahrenheit
答案：
A
2．Whatcausesthetemperatureoftheearthtoincrease?
A．Cuttingtrees.B．Wastingthefarmland.
C．Burningfossilfuels.D．Burningrubbish
答案：
C
3．Whoaccuratelymeasuredtheamountofcarbondioxideintheatmospherefrom1957to1997?
A．DrJaniceFoster.B．CharlesKeeling.
C．Fahrenheit.D．Charleskeeping
答案：
B
4．AccordingtoGeorgeHambley，________．
A．globalwarmingisaveryseriousproblem
B．there'snoneedtoworryaboutglobalwarming
C．thelevelsofCO2intheairwillbecomelowerinthefuture
D．wehavetoworryaboutglobalwarming.
答案：
B
5．Wecaninferfromthetextthat________．
A．thedebateabouttheeffectsofglobalwarminghasnotbeensettled
B．thegreenhouseeffectistheresultofpeople'sactions
C．allscientiststhinkitisimportanttoreducetheamountofCO2intheatmosphere
D．thedebateabouttheeffectsofglobalwarminghasbeensettled.
答案：
A
如何写海报
海报是向大众发布某种消息的布告。
海报的形式多为招聘广告、活动宣传和人物介绍。
英文海报的内容常为球讯、影讯、商业报道、展览会、报告会、专题讲座等。
一般的英语海报由标题、正文和落款组成。
1．标题
海报中往往把内容作为大字标题。
如：
FootballMatch，FilmNews，GoodNews，NewYear'sEveEntertainment或者注明Poster等字样。
2．正文部分
正文部分要写清楚具体内容。
活动内容、地点以及参加规定、主持或举办单位等。
语言多用十分简略的形式，开门见山地说明主题、活动内容。
活动时间和活动地点另起一行。
最后提出活动要求和注意事项。
3．落款
出海报的单位署名通常放在右下角；日期位于署名的下一行，既可以写在右下角，也可以写在左下角。
另外：
海报写作的注意事项还有：
（1）时态：
用一般将来时和一般现在时。
（2）语言：
海报文字要求简洁明了，篇幅要短小精悍。
文中可以用些鼓动性的词语，但不可夸大其词。
（3）要求：
海报一定要具体真实地写明活动的时间、地点、主要内容及参加规定。
【常用句式】
①Asweallknow，itisimportantto...
②First,youshould...Second...
③Itisamustthateverybodyshould...
④Onlyinthiswaycanwe...
⑤Thefirstsolutionis...thesecondsolutionis...
⑥Inaword,paymuchattentionto...
⑦Lastbutnotleast，peopleoughtto/should...
⑧Soyouneed/should...
⑨We'llhaveashow/footballmatchonJuly16th.
⑩Thereisapieceofnewsthatwe'llholda．..＋地点＋时间．
Wehopetoraisemoneytohelpthepoorchildren...
Itwillbeheld...
Youcanbuyticketsin...andthepriceis2yuanforeach.
Bythen,som
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