職稱英語等級考試理工AB精講班課程閱讀理解

職稱英語等級考試理工AB精講班課程

第十五講閱讀理解

>008年職稱英語詞匯大綱新增內(nèi)容（12）：

2008年《職稱英語等級考試大綱》上首字母為s的新增單詞

C級

snowflaken.雪花snow+flake

socioeconomicadj.社會和經(jīng)濟地位的

B級

scribblev.亂涂，亂畫

stimulantn.興奮劑

stimulatev.刺激，激勵

stimulate-activate（B級）—motivate-spur（A級）-stir激勵

A級

stowv.儲藏，堆裝

symmetryn.對稱性

>閱讀理解例題解析：

SmartWindow

Windowsnoton!yletlightintocutdownanelectricityusefor1ighting,but

thelightcomingthroughthewindowalsoprovidesheat.However,windowsarenot

somethingpeopletypicallyassociatewithbeingacuttingedge1technology.

Researchersarenowworkingonnewtechnologiesthatenableawindowtoquickly

changefromcleartodarkandanywhereinbetweenwithaflipofaswitch3.

“Ittookusalongtimetofigureoutwhatawindowreallyis,“saysClaes

Granqvist.He'saprofessorofsolid-statephysicsatUppsalaUniversityinSweden3.

"It'scontactwiththeoutsideworld.Youhavetohavevisualcontactwiththe

surroundingworldtofeelwell."So,windowsandnaturallightareimportantfor

improvingthewaypeoplefeelwhenthey'restuckindoors.

Yet,windowsaretheweaklinkinabuildingwhenitcomestoenergyand

temperaturecontrol.Inthewinter,coldairleaksin.Whenit'shotandsunny,

sunlightstreamsin.Al1ofthissunlightcarrieslotsofheatandenergy.Andall

ofthisextraheatforcespeopletoturnontheirairconditioners.Producingblasts

ofcoldair,whichcanfeelsorefreshing,actuallysuckupenormousamountsof

electricityinbuildingsaroundtheworld.

Windowshavebeenamajorfocusofenergyresearchforalongtime.Overthe

years,scientistshavecomeupwithavarietyofstrategiesforcoating,glazing,

andlayeringwindowstomakethemmoreenergyefficient.Smartwindowsgoastep

further.Theyusechromogenictechnologieswhichinvolvechangesofcolor.

Electrochromicwindowsuseelectricitytochangecolor.Forexample,asheet

ofglasscoatedwiththinlayersofchemicalcompoundsuchastungstenoxideworks

abitlikeabattery.Tungstenoxideisclearwhenanelectricchargeisapplied

anddarkwhenthechargeisremoved,thatis,whentheamountofvoltageisdecreased,

thewindowdarkensuntilit'scompletelydarkafterallelectricityistakenaway.

Soapplyingavoltagedetermineswhetherthewindowlooksclearordark.

Oneimportantfeaturethatmakesasmartwindowsosmartisthatithasasort

of“memory."Allittakesisasmal1joltofvoltagetoturnthewindowfromone

statetotheother.Then,itstaysthatway.Transitionstakeanywherefrom10seconds

toafewminutes,dependingonthesizeofthewindow.Thedevelopmentofsmart

windowscouldmeanthatmassiveairconditioningsystemsmaynolongerneed."In

thefuture,“Granqvistsays,“ourbuildingsmaylookdifferent.

詞匯：

flipn.&v.用手指輕彈，輕擊tungstenoxide氧化鋁

airconditioner空調(diào)（器）joltn.&v.震搖，顛簸，晃動

refreshingadj.使人清爽的electrochromicadj.電致變色的

glazev.裝玻璃，上釉voltagen.電壓

chromogenicadj.發(fā)色的airconditioning空調(diào)，空調(diào)系統(tǒng)

注釋:

1.cuttingedge：本意為：（刀片的）刃口，刀刃；比喻意為：最先進的，科技含量最高

的。

2.anywhereinbetweenwithaflipofaswitch：就在開或關(guān)的一霎那。

3.UppsalaUniversityinSweden：瑞典的烏普薩拉大學(xué)。烏普薩拉是瑞典東部一座城市，

位于斯德哥爾摩的西北方向。

練習：

1.Whichofthefollowingstatementsdoesnotindicatetheimportanceofwindows

asdescribedinthefirsttwoparagraphs?

A)Windowscanchangefromcleartodarktosaveenergy.

B)Windowshelptosaveenergybyletting1ightin.

C)Windowshelptosaveenergybyprovidingheat.

D)Windowsenablepeopletohavecontactwiththeoutsideworld.

2.Whenarewindowstheweaklinkinabuilding?

A)Inthecoldwinter.

B)Inthehotsummer.

C)Whenairconditionersareturnedon.

D)BothAandB.

3.Whataresmartwindows,accordingtoParagraph4?

A)Windowsthatarecoated.

B)Windowsthatareglazed.

C)Windowsthecolorofwhichcanbechanged.

D)Windowsthathavemanylayers.

4.Tomakeelectrochromicwindowschangecolor,whatisappliedtothewindowglass?

A)Electricity.

B)Tungstenoxide.

C)Abattery.

D)Avoltage.

5.Whatwillbethebenefitiftheresearchonsmartwindowsturnsouttobe

successful,accordingtothelastparagraph?

A)Thebuildingswilllookdifferent.

B)Windowscanbeaslargeasyouwant.

C)Wemaynotneedairconditionersanymore.

D)Theyarelessexpensivethantraditionalwindows.

答案與解析：

1.分析文章標題：Smart(聰明的，漂亮的)window(窗戶)

借助文章中的用詞特點或文章開頭的語句進一步了解這篇文章的主題：

Windowsnotonlyletlightintocutdownanelectricityuseforlighting,but

thelightcomingthroughthewindowalsoprovidesheat.However,windowsarenot

somethingpeopletypicallyassociatewithbeingacuttingedge1technology.

Researchersarenowworkingonnewtechnologiesthatenableawindowtoquickly

changefromcleartodarkandanywhereinbetweenwithaflipofaswitch2.

“Ittookusalongtimetofigureoutwhatawindowreallyis,“saysClaes

Granqvist.He'saprofessorofsolid-statephysicsatUppsalaUniversityinSweden3.

"It'scontactwiththeoutsideworld.Youhavetohavevisualcontactwiththe

surroundingworldtofeelwell."So,windowsandnaturallightareimportantfor

improvingthewaypeoplefeelwhenthey'restuckindoors.

Yet,windowsaretheweaklinkinabuildingwhenitcomestoenergyand

temperaturecontrol.Inthewinter,coldairleaksin.Whenit'shotandsunny,

sunlightstreamsin.Allofthissunlightcarrieslotsofheatandenergy.Andall

ofthisextraheatforcespeopletoturnontheirairconditioners.Producingblasts

ofcoldair,whichcanfeelsorefreshing,actuallysuckupenormousamountsof

electricityinbuildingsaroundtheworld.

Windowshavebeenamajorfocusofenergyresearchforalongtime.Overthe

years,scientistshavecomeupwithavarietyofstrategiesforcoating,glazing,

andlayeringwindowstomakethemmoreenergyefficient.Smartwindowsgoastep

further.Theyusechromogenictechnologieswhichinvolvechangesofcolor.

Electrochromicwindowsuseelectricitytochangecolor.Forexample,asheet

ofglasscoatedwiththinlayersofchemicalcompoundsuchastungstenoxideworks

abit1ikeabattery.Tungstenoxideisclearwhenanelectricchargeisapplied

anddarkwhenthechargeisremoved,thatis,whentheamountofvoltageisdecreased,

thewindowdarkensuntilit'scompletelydarkafterallelectricityistakenaway.

Soapplyingavoltagedetermineswhetherthewindowlooksclearordark.

Oneimportant（重要的）feature（特征）thatmakesasmartwindowsosmartis

thatithasasortof（——種）“memory（記憶,回憶）.“Allittakesisasmalljolt

ofvoltagetoturnthewindowfromonestatetotheother.Then,itstaysthatway.

Transitionstakeanywherefrom10secondstoafewminutes,dependingonthesize

ofthewindow.Thedevelopmentofsmartwindowscouldmeanthatmassiveair

conditioningsystemsmaynolongerneed."Inthefuture,“Granqvistsays,“our

buildingsmaylookdifferent.

分析：文章講介紹一種智能窗戶。

2.直接解題：

1.WhichofIh6「oI]owing（卜'歹ij的，J1次的）statements（陳述）doesnotindicate

（顯示，指出）theimportance（重要性）ofwindowsas（如同）described（被描述）

inthefirst（第一的，最初的）twoparagraphs（段落）？

A）Windowscanchange（變化）fromclear（清晰的）todark（暗的，黑色的）tosave

（節(jié)約）energy（能量,活力）.

B）Windowshelptosaveenergybylettinglight（光，燈）ni（讓...進入）.

C）Windowshelptosaveenergybyproviding（提供）heat（熱，加熱）.

D）Windowsenable（使能夠）peopletohavecontactwith（與...有接觸/聯(lián)系）the

outside（外面的，外面）world（世界）.

1.A.三個被選項均提到了節(jié)約能量，因此首先關(guān)注前兩個段落中涉及到節(jié)約能量的句子，

利用被選項中的細節(jié)信息結(jié)構(gòu)（A：fromcleartodark,B:light;C:heat;D:theoutside

world）共同作為答案線索，在文章中查找答案相關(guān)句：

Windowsnolonly（不但...而目....）leilight（光）inloculdown（砍倒，減

少）anelectricity（電）use（使用）forlighting（照明），butthelightcorning

through（通過）thewindowalsoprovides（提供）heat（熱）,However,windowsare

notsomethingpeopletypicallyassociatewithbeingacuttingedge1technology.

Researchers（彳講究者）arenowwonb力gm（繼續(xù)研究，設(shè)法說月艮）newtechnologies

（技術(shù)）ihaionablo（使能夠）awindowI。quickly（彳艮快地）changefromclearto

darkandAoZweuz?（在止匕之間，在...之間）wilh（用）aflip（輕敲）of

aswitch（開關(guān)）.

（第2段）“Ittook（花費）usalongtimetofigureout（弄清楚，計算出）

whatawindowreallyis,“saysClaesGranqvist.He'saprofessorofsolid-state

physicsatUppsalaUniversityinSweden'."It'scontact（接觸）withtheoutside

world.Youhavetohavevisualcontactwiththesurroundingworldtofeelwell.”

So,windowsandnaturallightareimportantforimprovingthewaypeoplefeelwhen

they'restuckindoors.

第一段中的答案相關(guān)句說：窗戶因為讓陽光進入房間，并且為房間提供熱源，所以節(jié)約了能

源。第二段中的答案相關(guān)句說：窗戶使人們能接觸外部世界。所以B、C和D都說明了

窗戶的重要性。所以A是錯誤的說法。

2.Whenarewindowstheweak（弱的，無力的）link（聯(lián)系，連接，連接物）inabuilding

（建筑物）？

A）Inthecold（寒冷的）winter（冬季）.

B）Inthehot（熱的）summer（夏季）.

C）Whenairconditioners（空調(diào)）/rolui、nodon（打開）.

D）BothAandB.

2.D.細節(jié)題。利用被選項中的細節(jié)信息詞（A：coldwinter;B:hotsummer;C:air

conditioners）作為答案線索，在文章中查找答案相關(guān)句：順著上一題的答案位置往下查找

答案相關(guān)句：

（第——題答案相關(guān)句）Windowsnotonlyletlightintocutdownanelectricity

useforlighting,butthelightcomingthroughthewindowalsoprovidesheat.However,

windowsarenotsomethingpeopletypicallyassociatewithbeingacuttingedge1

technology.（第一題答案相關(guān)句）Researchersarenowworkingonnewtechnologiesthat

enableawindowtoquicklychangefromcleartodarkandanywhereinbetweenwith

a「lipof'上switch".

“Ittookusalongtimetofigureoutwhatawindowreallyis,“saysClaes

Granqvist.He'saprofessorofsolid-statephysicsatUppsalaUniversityinSweden3.

（第一題答案相關(guān)句）"II'$c/onlac-lwithihooi心idoworld.Youhavetohavevisual

contactwiththesurroundingworldtofee1wel1.“So,windowsandnaturallight

areimportantforimprovingthewaypeoplefeelwhenthey'restuckindoors.

（第3段）Yet,windowsar。theweaklink（問遜句中的核心詞）inabuildingwhon

itcomesto（當提至.）energy（能量）andtemperature（溫度）control（控制，管

理）.Inthewinter,coldair（空氣）leaks（滲透，漏）in.Whenit'shotandsunny

（陽光充足的），sunlight（陽光）stroams（流淌，溪，河流）in.Allofthissunlight

carrieslotsofheatandenergy.Andallofthisextraheatforcespeopletoturn

ontheirairconditioners.Producingblastsofcoldair,whichcanfeelsorefreshing,

actuallysuckupenormousamountsofelectricityinbuildingsaroundtheworld.

短文第三段的第一句說：windowsaretheweaklinkinabuilding,接下來是對這句話

分寒冬和炎夏做了說明。所以D是正確選擇。

3.Whataresmartwindows,accordingto（根據(jù)）Paragraph4?

A）Windowsthatarccoated（被涂層的）.

B）Windowsthatareglazed（被裝了窗戶的，被上了釉的）.

C）Windowsthecolorofwhichcanbechanged.

D）Windowsthathavemanylayers（有許多層的）.

3.C.細節(jié)題。利用被選項中的核心詞及細節(jié)信息詞（A:coat;B:glaze;C:change;D:

manylayers）共同作為答案線索，在文章中查找答案相關(guān)句:

Windowsnotonlylet1ightintocutdownanelectricityusefor1ighting,but

thelightcomingthroughthewindowalsoprovidesheat.However,windowsarenot

somethingpeopletypicallyassociatewithbeingacuttingedge1technology.

Researchersarenowworkingonnewtechnologiesthatenableawindowtoquickly

changefromcleartodarkandanywhereinbetweenwithaflipofaswitch2.

“Ittookusalongtimetofigureoutwhatawindowreallyis,“saysClaes

Granqvist.He'saprofessorofsolid-statephysicsatUppsalaUniversityinSweden3.

“It'scontactwiththeoutsideworld.Youhavetohavevisualcontactwiththe

surroundingworldtofeelwell."So,windowsandnaturallightareimportantfor

improvingthewaypeoplefeelwhenthey'restuckindoors.

（第2題答案相關(guān)句）Yet,windowsaretheweaklinkinabuildingwhenitcomes

toenergyandtemperaturecontrol.Inthewinter,coldairleaksin.Whenit'shot

andsunny,sunlightstreamsin.Allofthissunlightcarrieslotsofheatandenergy.

Andal1ofthisextraheatforcespeopletoturnontheirairconditioners.Producing

blastsofcoldair,whichcanfeelsorefreshing,actuallysuckupenormousamounts

ofelectricityinbuiIdingsaroundthewor1d.

（第4段）Windowshavebeenamajorfocusofenergyresearchforalongtime.Over

theyears,scientistshavecomeupwithavarietyofstrategiesforcoating（對

應(yīng)選項A中的coat）,glazing（對應(yīng)選項B中的glaze）,andlayering（對應(yīng)選項D中

的layer）windowstomakethemmoreenergyefficient.Smarlwindowsgoastepfurther.

Theyuse（使用）chromogenic（發(fā)色的）technologies（技術(shù)）whichinvolve（包括）

changesofcolor.

第四段告訴我們，多年來，科學(xué)家已研究出多種通過窗戶節(jié)能的辦法，而smartwindows

使用的技術(shù)使窗戶能變換顏色。所以C是正確選擇。

4.Tomakeelectrochromic（電致變色的）windowschangecolor,whatisappliedto

（被用于）thewindowglass（玻璃，玻璃杯，眼鏡）？

A）Electricity（電,電流）.

B）Tungstenoxide（氧化鴇）.

C）Abattery（電池）.

D）Avoltage（電壓）.

4.B.細節(jié)題。利用問題句中的細節(jié)信息結(jié)構(gòu)（electrochromicwindows,windowglass）

及被選項中的細節(jié)信息結(jié)構(gòu)（黑體結(jié)構(gòu)）共同作為答案線索，在文章中查找答案相關(guān)句：

Windowsnotonlylet1ightintocutdownanelectricityusefor1ighting,but

thelightcomingthroughthewindowalsoprovidesheat.However,windowsarenot

somethingpeopletypicallyassociatewithbeingacuttingedge1technology.

Researchersarenowworkingonnewtechnologiesthatenableawindowtoquickly

changefromcleartodarkandanywhereinbetweenwithaflipofaswitch2.

“Ittookusalongtimetofigureoutwhatawindowreallyis,“saysClaes

Granqvist.He'saprofessorofsolid-statephysicsatUppsalaUniversityinSweden3.

“It'scontactwiththeoutsideworld.Youhavetohavevisualcontactwiththe

surroundingworldtofeelwell."So,windowsandnaturallightareimportantfor

improvingthewaypeoplefeelwhenthey'restuckindoors.

Yet,windowsaretheweaklinkinabuildingwhenitcomestoenergyand

temperaturecontrol.Inthewinter,coldairleaksin.Whenit'shotandsunny,

sunlightstreamsin.Al1ofthissunlightcarrieslotsofheatandenergy.Andall

ofthisextraheatforcespeopletoturnontheirairconditioners.Producingblasts

ofcoldair,whichcanfeelsorefreshing,actuallysuckupenormousamountsof

electricityinbuildingsaroundtheworld.

Windowshavebeenamajorfocusofenergyresearchforalongtime.Overthe

years,scientistshavecomeupwithavarietyofstrategiesforcoating,glazing,

andlayeringwindowstomakethemmoreenergyefficient.（答案相關(guān)句）Sniarlwindows

goastepfurther.Theyusechromogenictechnologieswhichinvolvechangesofcolor.

（第5段）Electrochromicwindows（電致變色的）useelectricitytochangecolor.

Forexample（例如）,asheetof（——片）glasscoatedwiththin（薄薄的）layersof

chomical（化學(xué)的）compound（混合物）such8s（例如）tungstenoxide（氧化鴇）works

（「作）abit（二點:/少許）liko（象）abattery（電池）.Tungstenoxideisclear

whenanelectricchargeisappliedanddarkwhenthechargeisremoved,thatis,

whentheamountofvoltageisdecreased,thewindowdarkensuntilit'scompletely

darkafteral1electricityistakenaway.Soapplyingavoltagedetermineswhether

thewindowlooksclearordark.

第五段第二句提供了答案。asheetofglasscoatedwiththinlayersofchemicalcompound

suchastungstenoxide中的coated是“涂上一層薄薄的...”的意思。

5.Whatwillbethebenefit（利益，好處）iftheresearchon（關(guān)于）smartwindows

lurnsoutlobe（結(jié)果證明）successful（成功的），accordingto（根據(jù)）thelast

（最后的，最近的）paragraph（段落）？

A）Thebuildings（建筑物）willlookdifferent（不同的）.

B）Windowscanbeaslargeas（與...一樣大）youwant.

C）Wemaynotneedairconditioners（空調(diào)）anymore（不再...）.

D）Theyarelessexpensive（昂貴的）thantraditional（傳統(tǒng)的）windows.

5.C.被選項中出現(xiàn)了大量的修飾詞,利用這些詞（A：different;B:large;D:expensive,

traditional）及選項C中的細節(jié)信息詞（airconditioner）共同作為答案線索，在文章中

查找答案相關(guān)句：

（最后一段）Oneimportantfeaturethatmakesasmartwindowsosmartisthatit

hasasortofumemory."Allittakesisasmalljoltofvoltagetoturnthewindow

fromonestatetotheother.Then,itstaysthatway.Transitionstakeanywherefrom

10secondstoafewminutes,dependingonthesizeofthewindow.Thedevelopment

（發(fā)展）ofsmartwindowscouldmean（意味著）thatmassive（巨大的）airconditioning

systemsmaynolongoN不再）need.aInthefuture,“Granqvistsays,“ourbuildings

maylookdifferent.

段落最后一段的倒數(shù)第2句是直接答案相關(guān)句，根據(jù)該句內(nèi)容判斷C是答案。

在線作業(yè):

在線作業(yè):

第1篇

ElectricBackpack（2008年教材C級新增文章）

Backpacksareconvenient.Theycanholdyourbooks,yourlunch,andachange

ofclothes,leavingyourhandsfreetodootherthings.Someday,ifyoudon'tmind

carryingaheavyload,yourbackpacksmightalsopoweryourMP31player,keepyour

cellphonerunning,andmaybeevenlightyourwayhome.

LawrenceC.RomeandhiscolleaguesfromtheUniversityofPennsylvaniain

Philadelphia2andtheMarineBiologicalLaboratoryinWoodsHole3,Mass.\have

inventedabackpackthatmakeselectricityfromenergyproducedwhileitswearer

walks.Inmilitaryactions,search-and-rescueoperations,andscientificfield

studies,peoplerelyincreasinglyoncellphones,globalpositioningsystem(GPS)：，

receivers,night-visiongoggles,andotherbattery-powereddevicestogetaround

anddotheirwork..Thebackpack?selectricity-generatingfeaturecould

dramaticallyreducetheamountofawearer?sloadnowdevotedtosparebatteries,

reportRomeandhiscolleaguesintheSept.9Science.

Thebackpack'selectricity-creatingpowersdependonspringsusedtohanga

clothpackfromitsmetalframe.TheframesitsagainstthewearerJsback,andthe

wholepackmovesupanddownasthepersonwalks.Agearmechanismconvertsvertical

movementsofthepacktorotarymotionsofanelectricalgenerator,producingup

to7.4watts.

Unexpectedly,testsshowedthatwearersofthenewbackpackaltertheirgaits

inresponsetothepack,soscillations,sothattheycarryloadsmore

comfortablyandwithlesseffortthantheydoordinarybackpacks.Becauseof

thatsurprisingadvantage,Romeplanstocommercializebothelectricand

non-electricversionsofthebackpack.

Thebackpackcouldbeespeciallyusefulforsoldiers,scientists,mountaineers,

andemergencyworkerswhotypicallycarryheavybackpacks.Fortherestofus,

power-generatingbackpackscouldmakeitpossibletowalk,playvideogames,watch

TV,andlistentomusic,al1atthesametime.Electricity-generatingpacksaren't

onthemarketyet,butifyoudogetoneeventually,justmakesuretolookboth

waysbeforecrossingthestreet!

詞匯：

backpackn.背包wattn.瓦(特)

receivern.接收機gaitn.步態(tài)，步法

night-visiongoggle夜視鏡oscillationn.擺動

springn.彈簧commercializev.商業(yè)化

verticaladj.垂直的mountaineern.登山運動員

rotaryadj.旋轉(zhuǎn)的

注釋：

1.MP3：Internet上最流行的音樂格式，最早起源于1987年德國一家公司的EU147數(shù)字

傳輸計劃,它利用MPEGAud它利yer3的技術(shù),將聲音文件用1：12左右的壓縮率壓縮,

變成容量較小的音樂文件，使傳輸和儲存更為便捷，更利于互聯(lián)網(wǎng)用戶在網(wǎng)上試聽或下

載到個人計算機。

2.Philadelphia：費城［美國賓夕法尼亞州東南部港市］

3.WoodsHole：美國馬薩諸塞州的一個漁村，也是許多重要研究機構(gòu)所在地，如：the

MarineBiologicalLaboratory,theSoaEducalionAssocialion以及theWoodsHole

OceanographicInstitution,

4.Mass.：Massachusetts的縮寫：馬薩諸塞州，美國東北部的一個州。

5.globalpositioningsystem(GPS)：全球定位系統(tǒng)

6.Science：美國的Science雜志為國際上著名的自然科學(xué)綜合類學(xué)術(shù)期刊，在世界學(xué)術(shù)

界享有盛譽。Sc/即ce雜志創(chuàng)刊于1880年，該雜志具有新聞雜志和學(xué)術(shù)期刊的雙重特

點，每周除向世界各地發(fā)布有關(guān)科學(xué)技術(shù)和科技政策的重要新聞外，還發(fā)表全球科技研

究最顯著突破的研究論文和報告。

練習：

1.Backpacksareconvenientbecause

A)theycanbeverylarge

B)theycanholdasmanythingsasyouwanttocarry.

C)yourhandsarefreedtodootherthings.

D)youdonothavetocarrythingswithyou.

2.WhatisthemostimportantfeatureofthebackpackinventedbyLawrenceC.Rome

andhiscolleagues?

A)Itproduceselectricityforelectronicdeviceswhilethewearerwalks.

B)Itcanbeusedascel1phones,GPSinthemi1itaryactionsorfieldstudies.

C)Itissmallandconvenient.

D)Itislightandeasytocarry.

3.Theword“springs“inParagraph3means

A)asmallstreamofwaterflowingnaturallyfromtheearth.

B)theseasonoftheyear,occurringbetweenwinterandsummer.

C)theactoraninstanceofjumpingorleaping.

D)alengthofmetalwoundaround,whichreturnstoitsoriginalshapeafter

beingpushed.

4.AccordingtoParagraph4,whatdoesRomeplantodo?

A)Tomakethebackpackmorecomfortableforthewearer.

B)Toputthebackpackonthemarket.

C)Totesttheadvantageofthebackpack.

D)Topromotethebackpackinanewspaperorontelevision.

5.Whatisimpliedin“ifyoudogetoneeventually,justmakesuretolookboth

waysbeforecrossingthestreet!

A)Youwillbetooexcitedtowatchthetraffic.

B)Enjoyingelectronicdeviceswhi1ewalkingmayinvitetrafficaccidents.

C)Itisnotpossibleforyoutogetsuchabackpack.

D)Itiswiseofyoutohavesuchabackpack.

笛9笛

AirPollutionCloudMeasuredonBothSidesofPacific

Scientistswatchedcloselylastspringasahazeofpollution,whichhadbeen

trackedbysatelliteasitcrossedthePacificOcean,settledoveralargeswath

ofNorthAmericafromCalgary,Canada,intoArizona.Nowitappearsthat,forthe

firsttime,researchersonbothsidesofthePacifictookdetailedmeasurements

ofthesameplume,acloudthatcontainedGobidesertdustaswellashydrocarbons

fromindustrialpollution.

HeatherPrice,aUniversityofWashingtondoctoralstudentinchemistry,found

thattheamountof1ightreflectedbytheparticlesintheairwasmorethan550

percentgreaterthannormalforthattimeofyear.ThemassofAsianaircontained

elevatedlevelsofallpollutantsmeasured.Pricesaid,“buttheonlythingthat

cameclosetobeingalarmingwasthelevelofparticulateMatter.”

Thehazethatsettledacrossthewesternpartofthecountrywaswidelyreported

bythenewsmedia,anditwasmeasuredasfarinlandastheskislopesofAspen,

Colo.

ReadingsonthewesternsideofthePacificcamefromtheAerosol

CharacterizationExperiments,aprojectaimedatunderstandinghowparticlesinthe

atmosphereaffectEarth?sclimate.Additionalmeasurementsweretakeninthesame

regionatthesametimeunderaprojectsponsoredbytheNationalAeronauticsand

SpaceAdministration.

KnowingthepollutionwasapproachingWashingtonstate,Priceloadedsensing

equipmentaboardarentedBeechcraftonApril14andflewtoNeahBayonthestate*s

Northwestcoast.Takingsamplesatvariouslevelsfrom15,000feetto20,000feet

inaltitude,shemonitoredquantitiesofdust,ozone,carbonmonoxideand

hydrocarbons."Frommycopilot*sseat,thedustwasthickenoughtoseewiththe

nakedeye."Pricesaid.

Nowshe'stryingtocorrelateherfindingswiththoseofthetworesearchteams

operatingontheothersideofthePacific,whereatonepointthepollutionplume

waslargerthanJapan.Thehugesizeofthecloudshowedupclearlyinsatellite

imagesthatgavePriceplentyofwarningthehazewasonitsway."Youcanseethese

twoblobscomingoutofthedesertsofMongoliaandgrowingoverAsia,thengetting

sweptoutovertheoceanandfinallysettingoverNorthAmerica,“

shesaid.SheintendstocontinuemeasuringairsamplesofftheWashingtoncoast

andwillbelookingforairmasseswithevidenceofpollutionoriginatingsomewhere

otherthanAsia."We'dliketoseeifwecangetasignatureofpollutioncoming

fromEuropebecausecomputermodelssuggestthatEuropeansourcesalsocanbe

transportedacrossthePacific,“shesaid.However,we

expectthatsourcesinEuropewillcontributelessthanAsiansources.”

1.Thehazeofpollutionmentionedinthefirstparagraphisacloud

A)ofmoistureoverCalgary,Canada.

B)developingoverPacificOcean.

C)ofindustrialpollutants.

D)ofdesertdustandhydrocarbons.

2.OneofthePrices'Sfindings(Paragraph2)abouttheparticlesoftheairisthat

A)theycontainmorepollutantsthannormalparticles.

B)theymovemuchfasterinhighaltitudesthaninlowaltitudes.

C)theyarefinerandlighterthannormalparticles.

D)theirabilitytoreflectlightismuchthanstronger.

3.WhatdidPricenotdoduringherresearch?

A)SherentedaBeechcraft.

B)SheusedhersensingequipmentaboardtheBeechcrah.