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1、Units15～16DestinationsTheUnitedStatesofAmerica●说明文(2009·上海卷C篇)“Getyourhandsoffme,Ihavebeenstolen，”thelaptop,aportablecomputer,shouted.Thatisanewsolutiontolaptopcomputertheft:aprogramthatletsownersgivetheirpropertyavoicewhenithasbeentaken.Theprogramallowsu
2、serstodisplayalertsonthemissingcomputer’sscreenandeventosetaspokenmessage.Trackingsoftwareforstolenlaptopshasbeenonthemarketforsometime,butthisisthoughttobethefirstthatallowsownerstogivethethiefapieceoftheirmind.Ownersmustreporttheirlaptopmissingbyvisitin
3、gawebsite,whichsendsamessagetothemodel:aredandyellow“lostorstolen”signappearsonitsscreenwhenitisstarted.Underthelatestversion(版本)ofthesoftware,userscanalsosendaspokenmessage.Themessagecanbesettoreappearevery30seconds,nomatterhowmanytimesthethiefclosesit.“
4、Onecustomersentamessagesaying,‘Youarebeingtracked.Iamrightatyourdoor’，”saidCarrieHafeman,chiefexecutiveofthecompanywhichproducestheprogram,Retriever.Inthelatestversion,peoplecanaddaspokenmessage.Forexample,thelaptop’sspeakerswillsay:“Help,thislaptopisrepo
5、rtedlostorstolen.Ifyouarenotmyowner,reportmenow.”TheRetrieversoftwarepackage,whichcosts$29.95buthasafreetrialperiod,hasthefunctionsofmanysecuritysoftwareprograms.Ownerscanremotelyswitchtoanalternativepasswordiftheyfearthatthethiefhasalsogotholdoftheaccess
6、details.IfathiefaccessestheInternetwiththestolenlaptop,RetrieverwillcollectInformationontheInternetserviceproviderinuse,sothatthepolicecanbealertedtoitslocation.Thousandsoflaptopsarestoleneveryyearfromhomesandoffices,butwiththeuseoflaptopsincreasing,thenu
7、mberstolenwhiletheirownersareoutandabouthasbeenrisingsharply.Othersecuritysoftwareallowsuserstoerasedataremotelyorlockdownthecomputer.72．Theexpression“togivethethiefapieceoftheirmind”canbeunderstoodas“_____”．A．togivethethiefanalertmindB．toexpresstheowners
8、’angertothethiefC．toremindthethiefofthisconscienceD．tomakethethiefgiveuphismind73．Differentfromothersecuritysoftware,Retrievercan________.A．recordthestealingprocessB．helprecognizethelostlaptopC．lockdownthecomputerre
