理工英语B级文档格式.docx

理工英语B级文档格式.docx

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4Jackconsumesapoundofcheeseday．

AeatsBdrinksCbuysDproduces

5Maryjusttoldusaveryfascinatingstory.

AstrangeBfrighteningCdifficultDinteresting

6It'

sagorgeousdayanyway

AlovelyBcoldCnormalDrainy

7Herlifeisbecomingmorediverse

AgenerousBhumorousCvariedDromantic

8Foreignmilitaryaidwasprolongingthewar

AbroadeningBworseningCextendingDaccelerating

9Shewasunwillingtogobutshehadnochoice．

AunableBindecisiveCreadyDreluctant

10Sheis．slender，withdelicatewristsandankles

AsickBweakCslimDpale

11Withimmenserelief,stoppedrunning

AsomeBenormousClittleDextensive

12Thescientistsbegantoaccumulatedata

AcollectBhandleCanalyzeDinvestigate

13Jackeventually．Overtook.thelasttruck

AhitBpassedCreachedDled

14Sometimesitisadvisabletobookhotelsinadvance

ApossibleBprofitableCeasyDwise

15Thereasonfortheirunusualbehaviorremainsapuzzle．

AfactBmysteryCstatementDgame

第3部分：

概括大意与完成句子（第23—30题，每题1分，共8分）

下面的短文后有2项测试任务：

（1）第23~26题要求从所给的6个选项中为第2～5’段每段选择1个最佳标题；

（2）第27～30题要求从所给的6个选项中为每个句子确定1。

个最佳选项。

TheSupercomputerNetwork

1Recently,tenlaboratoriesrunbygovernmentsindifferentpartsoftheworldhavebecomelinked．Theircomputershavebeenconnectedsotheycan“talk”toeachother．Thismaynotseemverydramaticnews，butitisthebeginningofadevelopmentthatwillincreasethepoweroftheInternettremendously．

2Thelnternetisaninterconnected（互联）systemofnetworksthatconnectscomputersroundtheworldandfacilitatesthetransmissionandexchangeofinformation．ThewaythatyouusetheIntermitisbyaccessingthisnetwork．Thisdependsonthepowerthatyoursystemallowsyoutouse．Thepowerofyourcomputerisresponsibleforhowfastyoucandownload（下载）files，howmuchdatayoucanstore，etc．Ifyourcomputerisoldandslow，accessingtheinformationcanbeverydifficult．

3Thenewdevelopmentininformationtechnologyhasbeencalled“thegrid”（网格技术），anditwillbeanetworkofcomputersthatarelinkedtogether．The“grid”willworkinadifferentwayfromtheIinternet.enablingyoutogetthepowerofthebiggestcomputersintheworldonyourcomputer．Accessingtheinformationwillnolongerdependonthepowerofyourcomputer．Theideaisthatwhileyouaccessinformation，youwillalsohave‘accesstothepowerofthebiggercomputerstations．

4Oneadvantageofthisrevolutionaryideaisthatgeographicallocationwillbecomeirrelevant．The“grid”willdecidewhicharethebestpartsofaworldwidenetworktodothejobyouwant．ThismeansthatyoumaybeaccessingacomputerInJapantosolveaprobleminAlaska．

5The“grid”canbecomparedtohavinganefficientpersonalassistant．Youcangaveyourassistantataskand“he”w{Ild0itforyou．Theassistantwilldothepreliminaryresearch，collectthedata，comparethemanddecideonthebestcourseofactionbyaccessinganyofthecomputercentersinthe“grid”thathappentohavetherelevantinformation．Ailyouhavetodoisassignthetask，sitbackandwait．

6Atpresent．possibleapplicationsofthe“grid”inscientificresearcharebeingexplored．WhileithastakenaboutfifteenyearsforInternetusetobecomewidespread，expertsbelievethatthe“grid”couldbeusandrunningforprivateindividualsfarmorequickly．Scientistsworking“grid’’projectsareconvincedthatitwillbeaswidelyusedasthewebinthenexttenyears．

23Paragraph2____________

24Paragraph3____________

25Paragraph4____________

26Paragraph5____________

AHowdoesthe“grid”work?

BPowershared

CJustmakearequest

DLimitationsofpresentInternetuse

EDistanceisnotaproblem

FAnewerafortheInternet

27Traditionallythepowerofyourcomputerdetermineshowfastyoucanaccess____________

28The“grid”willenableyoutogetonyourcomputerthepowerof___________

29The“grid”wouldbelike____________whocanperformyourtasksefficiently

30Itisbelievedthatthewidespreaduseofthe“grid”willbecomepossibleinthenext__________

Athebiggercomputerstations

Btheadvantage

Ctenyears

Dinformation

Eyourpersonalassistant

Ffifteenyears

第4部分：

阅读理解（第31—45题，每题3分，共45分）

下面有3篇短文，每篇短文后有5道题。

请根据短文内容，为每题确定1个最佳选项。

第一篇Sunspots

It'

snotsurprisingthatsunspots（太阳黑子）wereobservedbyancientastronomers（天文学家）．Thelargestsoupspoonthesuncanbeseenwithoutatelescope．Itwasnotuntiltheinventionofthetelescope（望远镜）intheearly17th.century，however，thatsystematicstudiesofsunspotscouldbeundertaken．ThegreatastronomerGalileowasamongthefirsttomaketelescopicobservationsofsunspots

Sunspotsareregionsofextremelystrongmagneticfields（磁场）foundonthesun’Ssurface．Asunspothasadarkcentralcoreknownastheumbra．Theumbraissurroundedbyadarkringcalledthepenumbra，wherethemagneticfieldspreadsoutward．Sunspotsappeardarkbecausetheyaregivingofflessradiation．Theyarecoolerthantherestofthesun’SsurfaceSunspotsarefrequentlyobserved’in-'

pairsofinpairedgroups．Themembersofa．spotpairareidentifiedastheleadingspotandthefollowingspot．TheyareidentifiedbytheirpositioninthepairintermsofthedirectioninWhichthesunrotates（旋转）Thenumberofsunspotsatanyonetimevaries．Alargespotgroupmayconsistofasmanyas10groupsand300spotsacrossthesun．Thenumberofspotschangesinafairlyregularpatterncalledthesunspotcycle．Thelargestnumberoccursaboutevery11years．AtsunspotminimL{m，thereareatmostjustafewsmallspotsTheaveragelifetimeofanindividualspotgroupisroughlyonesolarrotation，whichisabout25days．Themostpersistentlargeslops，howevercansurvivefortwotothreemonths．

31．Carefulobservationsandsystematicstudiesofsunspots

A．weremadebyancientastronomers.B．startedintheearly17thcentury.

C．weremadebyGalileoonly.D．couldbemadewithoutatelescope.

32．Sunspotsarecoolerthantherestofthesun'

ssurfacebecause

A．theyproducelessenergy.B．theyareburiedinthesun.

C．theyarefarawayfrommagneticfields.D．theyareclosetomagneticfields.

33Theleadingspotandthefollowingspotarethenamesof

A．twolargesunspots.B．alargespotandasmallspot.

C．thetwospotsinaspotpair.D．thecentralcoreandtheringaroundit.

34．Infinitenesssunspotactivityhadoccurredin1857,thenextonewouldhavebeenin

A．1858.B．1862.C．1865D．1868

35Inthelastparagraphtheword"

persistentmeans

A．important.B．effective.C．enduring.D．visible.

第二篇WhereHaveAlltheBeesGone?

Scientistswhostudyinsectshavearealmysteryontheirhands．Allacrossthecountry,honeybeesareleavingtheirhives（蜂巢）andneverreturning．Researcherscallthisphenomenoncolony-collapse（群体瘫痪）disorder．Itisreposedthat25to40percentofthehoneybeesintheUShavevanishedfromtheirhivessincelastfall．Sofar,noonecanexplainwhy．

Colonycollapseisaseriousconcernbecausebeesplayanimportantroleintheproductionofaboutone—thirdofthefoodsweeat．Astheyfeed，honeybeesspreadpollen（花粉）fromflowertoflower．Withoutthisprocess，aplantcan’tproduceseedsorfruits．

Now，agroupofscientistsandbeekeepershaveteameduptotrytofigureoutwhat’ScausingthealarmingcollapseofSOmanycolonies．Theyhopetofindoutwhat’Scontributingtothedeclineandtopreventbeedisappearanceinthefuture．

Itcouldbethatdiseaseiscausingthedisappearanceofthebees．Toexplorethatpossibility,JayEvans，aresearcherattheUnitedStatesDepartmentofAgriculture（SDA）BeeResearchLaboratory,examinesbeestakenfromcoloniesthatarecollapsing．“WeknowwhatahealthybeeshouldLookLikeontheinside．andwecanlookforphysicalsignsofdisease．”hesays．Andbeesfromcollapsingcoloniesdon’tlookveryhealthy．“Theirstomachsareworndown．comparedtothestomachsofhealthybees，’’‘Evanssays．Itmaybethataparasite（寄生虫）makingthebees’digestiveorgans．Theirimmune（免疫的）systemsmaynotbeworkingastheyshould．Moreover，theyhavehighlevelsofbacteriainsidetheirbodies．

，

Anothercauseofcolony—collapsedisordermaybecertainchemicalsthatfarmersapplytokillunwantedinsectsoncrops，saysJerryHayes，chiefbeeinspectorfortheFloridaDepartmentofAgriculture．Somestudies，hesays，suggestthatacertaintypeofinsecticide（杀虫剂）affectsthehoneybee’Snewelssystemandmemory．“Itseemslikehoneybeesaregoingoutandgettingconfusedaboutwheretogoandwhattodo，’’hesays．

1fitturnsoutthatadiseaseiscontributingtocolonycollapse，bees’genescouldexplainwhysomecolonieshavecollapsedandothershavenot．Inanygroupofbeestherearemanydifferentkindsofgenes．Themoredifferentgenesagrouphas，thehigherthegroup’Sgeneticdiversity．Sofarscientistshaven’tdeterminedtheroleofgeneticdiversityincolonycollapse，butit'

sapromisingtheory，saysEvans．

36．Whatisthemysterythatresearchersfindhardtoexplain?

A．Honeybeesareflyingallacrossthecountry．

B．HalfofthehoneybeesintheUShavedied．

C．Honeybeesareleavingtheirhivesanddonotreturn．

D．Honeybeehivesareindisorder．

37．Researchersareseriouslyconcernedwiththephenomenonofcolony—collapsedisorderbecause

A．honeybeeshelpproduceone-thirdofthefoodsweeat

B．parasitesonbeesmayspreadeverywhere．

C．honeybeescannotfindenoughfoodelsewhere．

D．honeybeesfeedonflowers．

38．Whichofthefollowingis