阅读理解Timespentinabookshopcanbemostenjoyablewhetheryouareabookloverormerelygotheretobuyabookasapresent.Youmayevenhaveenteredtheshopjusttofindshelterfromasuddenshower.Whateverthereasonyo

　　阅读理解

　　Timespentinabookshopcanbemostenjoyablewhetheryouareabookloverormerelygothere

　　tobuyabookasapresent.Youmayevenhaveenteredtheshopjusttofindshelterfromasudden

　　shower.Whateverthereasonyoucansoonbecometotallyunawareofyoursurroundings.

　　Thedesiretopickupabookwithanattractivedust_jacketisirresistiblealthoughthismethodof

　　selectionoughtnottobefollowedasyoumightendupwitharatherdullbook.

　　Yousoonbecomeinterestedinsomebookorotherandusuallyitisonlymuchlaterthatyourealize

　　youhavespentfartoomuchtimethereandmustdashofftokeepsomeforgottenappointment-without

　　buyingabookofcourse.

　　ThisopportunitytoescapetherealitiesofeverydaylifeisIthinkthemainattractionofabookshop.

　　Therearenotmanyplaceswhereitispossibletodothis.Amusicshopisverymuchlikeabookshop.

　　Youcanwanderroundsuchplacestoyourheart'scontent.Ifitisagoodshopnoassistantwillapproach

　　youwiththeinevitablegreeting:"CanIhelpyousir?"Youneedn'tbuyanythingyoudon'twant.Ina

　　bookshopanassistantshouldremaininthebackgrounduntilyouhavefinishedbrowsing.Thenandonly

　　thenarehisservicesnecessary.Ofcourseyoumaywanttofindoutwhereaparticularsectionisbut

　　whenhehasledyoutheretheassistantshouldretirediscreetly(谨慎地)andlookasifheisnot

　　interestedinsellingasinglebook.

　　Youhavetobecarefulnottobeattractedbythevarietyofbooksinabookshop.Itisveryeasyto

　　entertheshoplookingforabookonsayancientcoinsandtocomeoutcarryingacopyofthelatest

　　bestsellingnovelandperhapsabookaboutbrassrubbing-somethingwhichhadonlyslightlyinterested

　　youuptillthen.Thisvolumeonthesubjecthoweverhappenedtobesowellillustratedandthepartof

　　thetextyoureadprovedsointerestingthatyoujusthadtobuyit.Thissortofthingcanbevery

　　dangerous.Apartfromrunningupahugeaccountyoucanwasteagreatdealoftimewanderingfrom

　　sectiontosection.

　　1.Theunderlinedphrase"dustjacket"means________.

　　A.akindofclothes