502书库

Unit 6（第5页）

A）maylostB）musthaveleftC）couldhavefottenD）shouldhaveleft12。AsIhavenothingtodonow，I_____aswellgowithyou。

A）couldB）shouldight13。Maryiswetthrough。She_____intheriver。

A）havefallenB）musthavefallenC）mayfallD）shouldhavefell14。Iwanttogoshopping，butyou_____withme。

&gotoB）donotneedgootgoD）15。They_____holdiheatthismoment。

Exercises

A）mightbeB）beC）oughttobeD）shouldhavebeen16。“MayItaketheiofthelaboratory?”“No，you_____。”

A）maynotB）ightnotD）mustnot17。You_____startingyourwork。It’salreadyeighto’clock。

A）mustbeB）mightbeC）oughttobeD）be18。Iamsorrythatshe_____besocareless。

A）mayB）C）mustD）should19。You_____eoveryourself。Youcouldhavegivenmearinginstead。

&haveB）shouldhaveD）mustn’thave20。Iwon’tallowyoutoswimacrosstheriver，evenifyou_____doit。Thetistooswift。

A）mayB）dareC）mustD）shprehension

&iohefollowingpassage（s）。Choosethebestahequestionsandtraheueoese。

Passage

&of“digital，digital，digital”uestogrowinvolumeworldwide。Digitalcameras，digitalvideocamcorders，videoCDplayers，DVD，cellularphones，andahostofputerperipherals（外部设备）aremovirendalongatabreathtakiheaverageperson，itmayseemlikearemoteandpuzzlionlyfortheteologicallyadept。

Virtuallyeveryaspectofourlivescouldbeaffectedbythedigitalrevolution。Hereisahypotheticepttoshowthepossibilities:Arealestateageleusesadigitalstillepicturesofahouseshe’stryiraoherputer，digitallyretoudehem，andpoststhemonherpaWebsite。InSingapore，abuyerseesthepidasksviaeleailformoreinformatiorepliesviaemailaextandadigitalvideoessage。LaterthebuyerfliestoSeattle，iheproperty，ahedeal。

&hebiggestmarketingsurpriseseisthedigitalstillceprohibitivelyexpehesecamerashaveradicallydroppedinpricewhilegaiion（分辨率）aures。Althoughtheyofteioheydon’tusefilm。Iheystesoherasmallremovablememoryorysidethecamera。

&yofdigitalphotographyisthatwhileyou’llspeivelymitalcamera，you’llsavealotcosts，becausetherearen’tany。Youalsitalpidkeepshooti，youusesoftwaretoeertheimage。

Inquality，theimageser-leveldigitalcamerasproduparetoonesyou’dgetfroma35mmh，digitalphotosaremeanttobevieutermonitor，andsotheirresolutiohaable。Inaworldwherethespeedatwhichyoudistributeinformatiohediffereweensudfailure，andimmediacysupersedes（代替）qualityinimportanypeasuefitalcamera。

1。Frraphweknoersonthinks_____。

A）thedigitalageisfarawayB）digitalistoopliC）digitalageisterrifyingD）bothAandB2。Inthesedparagraphthewriterusedaoshowthat_____。

A）digitalstillcameraiseasytouseB）digitalstillcamerashouldbeusedtogetherwiththeIC）peoplecouldusedigitalstilloneyD）digitalageisdevelopingrapidly3。Theword“discard”（Para。4）probablymeans_____。

&eB）storeC）alterD）move4。AllthefollowiagesofdigitalstillcameraEXCEPT_____。

A）noneedoffilmB）tooexpeoownC）theimagebegedD）highresolutioleforthispassageis_____。

&alAgeofIyB）DigitalStillCameraC）WaysofUsingDigitalStillCameraD）HelloDigitalIII。Cloze

&hereare20blanksinthefollowingpassage。ForeaktherearefourarkedA），B），dD）。YoushouldchoosetheOsintothepassage。

&wofactorswhichdetermineanindividual’sihefirstisthesortofbrainheisborn（1）_____。Humanbrainsdiffersiderably，（2）_____beingmorecapablethanothers。（3）_____noodabraiobeginwith，anindividualwillhavealoworderofintelligence（4）_____hehasopportuolearn。Sothesedfactoriswhat（5）_____totheindividual—thesortofeinwhichheisbrought（6）_____。Ifanindividualishandicapped（7）_____，itislikelythathisbrainwill（8）_____todevelopandhewill（9）_____attaielligenceofwhichheis（10）_____。

&anviroermininganindividual’sintelligenbe（11）_____bythecaseofthe（12）_____twierandJohwihreemonthsold，theirpareheywerepla（13）_____foster（寄养）homes。Peterarentsoflowintelligen）（14）_____unitywithpooredualopportunities。John，（15）_____，waseduthehomeofwell-to-doparentswhohadbeehiseal（16）_____ueduwinswere（17）_____theirlateteens，（18）_____theyweregiveo（19）_____theirintelligen’sI。O。was125，tweshigherthanthe（20）_____andfullyfortypoihaicalbrother。

1。A）forB）byC）withD）in

2。A）mostB）someyD）few3。A）ButB）ForC）StillD）And4。A）ifB）thoughC）asD）unless5。A）refersB）appliessD）s6。A）aboutB）upC）forwardD）forth7。A）relativelyB）ilyC）regularlyD）eally8。A）failB）helpageD）stop9。A）everB）neverD）nearly10。A）ableB）capableC）availableD）acceptable11。A）demonstratedB）indicatedC）releasedD）revealed12。A）identicalB）diverseC）parallelD）similar13。A）separateB）iC）remoteD）individual14。A）omittedB）isolatedclosedD）occupied15。A）moreoverB）furthermoreC）thereforeD）however16。A）exB）divisionC）differeeration17。A）inB）byC）atD）for

18。A）whileB）sinD）because19。A）estimateB）tC）decideD）measure2eB）onC）usualD）ordinary