四级阅读.docx
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四级阅读.docx
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四级阅读
2010年12月大学英语四级考试阅读提高训练(七)
Solarenergyforyourhomeiscoming.Itcanhelpasinglehomeownerjustlikeyou.Itcanhelpthewholecountryaswell.Whetherornotsolarenergycansaveyourmoneydependsonmanythings.Whereyouliveisonefactor.Thetypeofhomeyouhaveisanother.Thingslikeinsulationpresentenergycoasts,andthetypeofsystemyoubuyareaddedfactors.
Usingsolarenergycanhelpsaveourpreciousfuel.Asyouknow,oursuppliesofoilandgasareverylimited.Thereisjustnotenoughonhandtomeetallourfutureenergyneeds.AndwhenMotherNaturesaysthat’sall.Theonlywaywecandelayhearingthosewordsisbystartingtosaveenergynowandbyusingothersources,likethesun.
Wewon’thavetoworryaboutthesunsrunningoutofenergyforanotherseveralbillionyearsorso.Besidesbeginninganendlesssourceofenergy,theuseofthesunhasotheradvantagesaswell.Thesundoesn’tofferasmanyproblemsasotherenergysources.Forexample,fossilfuelplantsaddtoalreadyhighpollutionlevels.Withsolarenergy,wewillstillneedsourcesofenergy,butwewon’tneedasmuch.Thatmeanswecancutdownonourpollutionproblems.
Withallthesegoodpoints,whydon’tweusemoresolarpower?
Therearemanyreasonsforthis.Thebiggestreasonismoney.Untilnow,itwasjustnotpracticalforahomeownertoputinasolarunit.Therewerecheapersourcesofenergy.Allthatischangingnow.Solarcostsarestartingtoequalthecostsofoilandelectricity.Expertssaythatgas,oilandelectricitypriceswillcontinuetorise.Thedemandforelectricityisincreasingrapidly.Butnewpowerplantswillusemoregas,oilorcoal.Alreadyinsomeplacesthesupplyofelectricityisbeingrationed.Solarenergyisnowinitsinfancy.Itcouldsoongrowtobecomeamajorpartofournationsenergysupply.
57.Whichstatementbestexpressesthemainidea?
A)Somethingaboutsolarenergyandpollution
B)Solarenergy
C)Energyandpollution
D)Energyandmoney
58.Solarenergycanhelpussave____.
A)theearthandnaturalresources
B)mothernature
C)thesun
D)ourpreciousfuel
59.Thesunisanendlesssourceofenergy,itwillnotrunoutofitfor____.
A)severalmillionyears
B)severalhundredyears
C)severalbillionyears
D)severalthousandyears
60.Whichofthefollowingstatementsiscorrect?
A)Energyfromcoalwouldnotpolluteourlivingenvironment.
B)Energyfromnaturalgaswouldnotpolluteourlivingenvironment.
C)Energyfromthesunwouldnotpolluteourlivingenvironment.
D)Energyfromoilwouldnotpolluteourlivingenvironment.
61.Solarenergyisnowinitsinfancy,____.
A)butitwillbeconsideredasanimportantpartofournationsenergysupply.
B)yetwewillbuildmorepowerplants.
C)andthesupplyofelectricitywillberationed.
D)butwedontneedpracticeenergyrationingnow.
57.B。
此题考查文章的主题.本文主要围绕太阳能,介绍了其优点以及太阳能和节约成本间的关系,B项正确。
A和C项中所说的污染,文中并没有提到,因为太阳能是无污染绿色能源;而D项利用太阳能可以节约钱只是文章内容的一部分,故其余的答案都不符合题意。
58.D。
原文第二段第一句提到了使用太阳能会节省宝贵的能源。
其余的句子都是对此观点的论证。
D项“太阳能可以节省能源”与题意最贴切。
59.C。
将答案定位到文章第三段第一句,该句说太阳能是一种永恒的能源,再过几十亿年也不会枯竭。
因此,C项正确。
60.C。
文章第三段倒数第二句说到,由古代生物形成的能源会对环境造成高污染。
而煤、天然气、石油都属于这一类能源。
因此,C项正确。
61.A。
此题考查对文章主旨的理解。
将答案定位到文章最后两句,现在太阳能处于发展期,但不久将会成为我国能源的重要组成部分。
.
2010年12月大学英语四级考试阅读提高训练(六[10月20日]
Tocallsomething“marginal”meansitisnotverygood.Farmershavetheirownwayto 47_____marginalland:
Itisthelasttobeplantedundergoodconditions,andhasthe 48_____ tobeavoidedunderpoorconditions.Low 49_____ soilisnottheonlyreasonlandcouldbeconsideredmarginal.Itmightbeinanareawhererainfallis 50_____ orwhereahillsidemightrisetoosteeply(陡峭地).
Thereareusesformarginalland,however.Mostoftenitisusedasgrassland.Grassesprovideexcellent 51_____ forgrazing(吃草)animalslikecattle,sheepandgoats.Grassseedcanbeboughtfromaforeignsupplieror 52_____ grassescanbeused.However,usingmarginallandforgrazingisnotasimpleissue.Thereisa 53_____ ofovergrazing.Cattlecandamagethecropsbyeatingdowntotheroots.Also,theweightoftheanimalscrushesthesoilandcanmakeittoohardforgrowing.A(n) 54_____ waytoreducetheharmistomoveanimalsfromonefieldtoanother.Thismethodisknownasrotationalgrazing(循环放牧)whichisextremelyimportantformarginalland.
Anotheruseformarginallandisfortreecrops.Studieshave 55_____ thatthewhitepineandloblollypine(火炬松)aretwokindsoftreesthatgrowwellonsuchland.
Failuretoprotectmarginallandscanmakeabadsituationworse.Butgoodplanningcan 56_____ amarginalresourceintoahighlyproductiveone.
A)feed F)define K)native
B)priority G)adequate L)revealed
C)transplant H)transform M)prejudice
D)effective I)discouraging N)hazard
E)limited J)quality O)recovered
47.F。
marginalland冒号后面的内容,边缘地如果状况好的话,是最后一片被播种的地。
显然是在对marginalland进行定义,故答案为F。
48.B。
前句说:
边缘地如果状况好的话,是最后一片被播种的地;据此可以推断,如果状况不好,也就不会被播种。
空后的不定式短语做后置定语。
49.J。
此空需要填的词来修饰soil,后面谈到的是自然和地理条件,因此这里应该填一个表示土壤质量的词。
Quality符合句意。
50.E。
由于连接词是“or”,后面谈到的山坡上升太陡峭,or连接的前后句意思应该接近。
故推测这里肯定是雨水不足。
51.A。
草是为食草动物提供了优质的饲料,feed此处为名词,意为“饲料”,因此正确答案为A。
52.K。
此空需要填入形容词来修饰grasses,根据本句与foreign“国外的”相对的应是“native国内的”.
53.N。
此空需要填入名词,根据下文牲畜对草场的破坏。
可知过度放牧具有危险性。
54.D。
此空需要填入形容词,根据下文减少破坏的一种……方法是将动物从一快地迁移到另一快地。
改段最后一句提到循环放牧非常重要。
据此推断空缺处应填effective“有效的”。
55.L。
第一句指出边缘第的另一种用途是用来种树。
空缺处是对此句的具体解释。
句中缺少动词,故选reveal,意为“揭示”,符合句意。
56.H。
前句说如果不能保护好边缘地会使情况更糟。
but表示转折,空缺处句子的意思和前句相反。
据此可知好的规划能将边缘地变成高产地。
Transform意为“转化”,符合句意。
2010年12月大学英语四级考试阅读提高训练(五[10月14日]
Jogging—BenefitsfortheHealth
Whatisjogging
Originallyjoggingmeantslowlyorrelaxedrunningsomedistance.Nowadaysjogginghasamoreextendedmeaningthatthisarticleisbasedupon:
Joggingisrunningtoimprovehealthandconditionandforleisureatvariablespeeds.Whilerunningasacompetitivegameisnotcalledjogging.
Goodeffectsfromjoggingonthehealthcondition
Joggingdoneonaregularbasishaveagoodeffectonthegeneralhealth,provideditisnotover-done.Theeffectsarejoggingmakestheheartstronger.Itincreasesthecapabilityofthebloodcirculationandtherespiratory(呼吸)system.Itspeedsupthedigestivesystemandhelpsyougetridofdigestivetrouble.Itcounteractsdepression.Itincreasesthecapabilitytoworkandleadanactivelife.Joggingmakesyouburnfatandcantherebyhelpagainstoverweight.Youcanconsume100-200extracaloriesinahalf-an-hoursession.Inordertolooseweighteffectively,thejoggingsessionsmustbeatleasthalfanhourandberepeatedfairlyoften.Theextraburningoffatcontinuessometimeafterthesessionisover.
Ifyousufferfrompoorappetiteandtoolowweight,shortjoggingsessionswillimproveyourappetite,andinthiscaseitcanhelpyoutogainweight.Joggingwillstrengthenthemusclesofthelegs,hipsandback.However,youwillnotgetverybigmusclesfromjogging.Futhermore,joggingmakesyousleepbetter.
Thepleasurefromjogging
Jogginggivesyouphysicalandmentaljoy,providedyoudonotexhaustyourself.Whenjoggingisdonecorrectly,youwillactuallyfeellesstiredwhenyouhavefinishedatourthanbeforeyoubegan.Yougetnicefeelings—inyourmusclesduringthejoggingandafterwards.Youwillhearthewindblowinginthetreesandtheleavesrustlinginthewind.Youwillhearthebirdssinging,themusicofrunningwaterinthestreams,orthesoundofwavesdashingtowardstheseashore.Duringthejoggingyouwillalsogetahappymentalfeeling.
Afterthejoggingsession,thestressinyourmindandbodyisblownaway.Youfeelcalm,butusuallynottiredorexhausted.Onthecontrary,youfeelmorealert.Whenthenightfalls,yougetagoodandpleasantsleep.
Bodyandfootclothing
Thetypeofclothesyouwearmustbesuitedtotheweatherconditions.Inwarmweather,shortsandaT-shirtisenough.Incolderweatheryoumustaddmorelayersofclothes.Ineithercase,therequirementsfortheclothesare:
Youshoulduselightandsoftclotheswithoutanysharpsutures(缝合)orhardfoldsormassivefolds.Theyshouldsitfairlyclosetoyourbody,butnotsoclosethatyoufeelsqueezed,trapped,oryourmovementsarehindered.Theclothesshouldgivegoodventilation(通风)formoisture(湿气)andsweatthroughthefabric,andthefabricshouldgivegoodsupportagainstcoldweather.Thefabricshouldideallyholdwateroutfromtheoutside,butthisrequirementisdifficulttoachievetogetherwiththerequirementofgoodventilation.
Youshouldusefairlysoftshoes,butwithagoodshapefittingtotheanatomical(解剖的)shapeofyourfeet.Thesolesshouldeasilybendduringthenormalmovementsofyourfeet,butberigidagainstunnaturalmovements,andsupportwellagainsttheground.Theundersideofthesolesshouldgivefrictionagainstanytypeofgrounds,sothatyoudonotslideduringjogging.Thesolesshouldhelptodistributetheweightofyourbodyoveragreaterareaofyourfoot,andnotdirectedtowardsonesinglepointthatthenhavetocarryyourwholeweight.Thesolesshouldbuffer(缓冲)wellagainsteachimpactfromthegroundandabsorbtheimpactswell.Theimpactsnotabsorbedshouldalsobedistributedoveragreaterareaofyourfoot,andnotgetdirectedtowardsnarrowpoints.
Inordertodistributebodyweightandimpactsoptimally(最佳地),modernrunningshoeshavesofterinsideareas,orevenliquidinsidepadsthatabsorbanddistributetheweightandimpact.
Howtoperformajoggingsession—generalprinciples
Youshouldmoveslowlywithlittleeffortthefirstfewhundredmeterstowarmupyourmuscles.Thenyougraduallyincreaseyourmuscula
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