选择性必修第四册 Unit 1　Science Fiction

选择性必修第四册Unit1ScienceFictionⅠ.阅读理解AAreyouabooklover？Herearesomeofthehottestbooksoftheseason.TheOneThingYou’dSaveTheOneThingYou’dSaveisaboutahomeworkassignment.MsChanghasstudentschoosewhatthey’dsaveiftheirhomewasonfire.Somechoosebaseballcardsoranimaltoys.Onepicksasweaterthatwaspasseddownforgenerations.Anotherchoosesaboxofmemoriesaboutasisterwhodied.Thisbookhelpsreaderslearntofigureoutwhatcountsmostinlife.WarandMillieMcGonigleIt’s1941.MillieMcGonigle，a12-year-oldgirl，wassupposedtobelivingacarefreelife.However，shelivesintheshadowofWorldWarⅡ.WarandMillieMcGonigleisaninspiringstorythattacklesthetopicoflifeanddeath.Thestorylineisdrivenbyvividcharactersandtheirrelationships.TheinteractionbetweenMillieandherlittlesister，Lily，mirrorsthereal-lifesibling(兄弟姐妹)relationshipsinmanyfamilies.SimonB．Rhymin’Simonisstartingfifthgradeandhopestobecomeafamoussinger.Buthe’sshyaboutusinghisvoicetoexpresshisideasandthoughts.Whenateacheraskstheclasstogiveanoralpresentation，Simonmustfindthestrengthtochangeandovercomehisfears.SimonB．Rhymin’isabookthatgivesconfidencetoreaderswhoaregoingthroughsimilarstruggles.RezDogsRezDogisabookaboutaneighthgradernamedMalian.She’svisitinghergrandparentsonaWabanakireservationwhenCOVID-19hits.Tostaysafe，Malianhastostayawayfromschoolandherfriends.Manykidswillunderstandthistoughsituation.Duringthelockdown，Malianlearnstothinkaboutwhatotherpeoplehavegonethroughandhowtheyarefeelingduringthepandemic(疫情)．1．HowcanTheOneThingYou’dSaveinfluenceus?A．Itgetsustopreservesweetfamilymemories.B．Wemayfinditessentialtoensurehomesafety.C．Wewilltryourbesttoimproveouracademicperformance.D．Itremindsustodiscoverwhatweshouldtreasuremostinlife.2．WhatdoWarandMillieMcGonigleandSimonB．Rhymin’haveincommon?A．Theyarebothinspirationalstories.B．Theyarebothsetincruelwartimes.C．Theybothreflectcharacters’weaknesses.D．Theybothinvolveprinciplesofsurvival.3．Whichbookhelpsuslearntorelatetoothers?A．TheOneThingYou’dSave.B．WarandMillieMcGonigle.C．SimonB．Rhymin’．D．RezDogs.B(2023·山西百校联考)Thisyearresearchersexpecttheworldtosnap1.35trillionphotographs，orabout3.7billionperday.Allthosepixels(像素)takeupalotofroomiftheyarestoredonpersonalcomputersorphones，whichisonereasonwhymanypeoplestoretheirimagesinthecloud.Butunlikeaharddrivewhichcanbeencrypted(加密)toprotectitsdata，cloudstorageusershavetotrustthatatechplatformwillkeeptheirprivatepicturessafe.NowateamofColumbiaUniversitycomputerscientistshavedevelopedatooltoencryptimagesstoredonmanypopularcloudserviceswhileallowingauthorizeduserstobrowseanddisplaytheirphotographsasusual.Malicious(恶意的)attemptstoaccessorleakcloud-basedphotographscanexposepersonalinformation.InNovember2019，forexample，abuginthepopularphotographstorageappGooglePhotosmistakenlysharedsomeusers’privatevideoswithstrangers.Securityexpertsalsoworryaboutemployeesatcloudstoragecompaniesonpurposeaccessingusers’images.SotheColumbiaresearcherscameupwithasystemcalledEasySecurePhotos(ESP)，whichtheypresentedatarecentconference.“Wewantedtoseeifwecouldmakeitpossibletoencryptdatawhileusingexistingservices，”sayscomputerscientistJasonNieh，oneofthedevelopersofESP.“EveryonewantstostaywithGooglePhotosandnothavetoregisteronanewencrypted-imagecloudstorageservice.”Toovercomethisproblem，theycreatedatoolthatpreservesblocksofpixelsbutmovesthemaroundtoeffectivelyhidethephotograph.First，ESP’salgorithm(算法)dividesaphotographintothreeseparatefiles，eachonecontainingtheimage’sred，greenorbluecolordata.Thenthesystemhidesthepixelblocksaroundamongthesethreefiles(allowingablockfromtheredfile，forinstance，tohideoutinthegreenorblueones)．Buttheprogramdoesnothingwithinthepixelblocks，wherealltheimageprocessinghappens.Asaresult，thefilesremainunchangedimagesbutenduplookinglikegrainyblack-and-whiteonestoanyonewhoaccessesthemwithoutthedecryption(解密)key.4．What’sprobablythemainpurposeforpeopletostoreimagesinthecloud?A．Tosavestorageroom.B．Tomakephotosbeautiful.C．Totryanewstorageway.D．Tokeeptheirprivacysafe.5．Whymightemployeesincloudstoragecompaniesbedistrustedbyexperts?A．Theysellusers’passwords.B．Theyhaveinventednewtools.C．Theyoftenletoutpersonalinformation.D．Theymaystealaglanceatusers’images.6．What’stheadvantageofESP?A．Itcanprovideclearimages.B．Itcandecreasetheuploadtime.C．Itcanclassifyimagesautomatically.D．Itcanencryptdataontheoriginalplatform.7．Whatdoesparagraph4mainlytalkabout?A．Methodofdecryption.B．Image-processingtechnique.C．Separatefilesofimages.D．Dataanalysisofcolors.Ⅱ.完形填空Nobodycaninspireusasgreatteacherscan.Theyseemtocomewhenwe1themmost.Theysee2inusthatothers，includingourselves，can’tsee.Theyshowusthatwhatweperceiveas3isanythingbutthat.LesBrown，oneoftheworld’sgreatestmotivationalspeakersonself-improvement，isalivingexample.BorninanabandonedbuildinginMiami，Leshasknown4hisentirelife.Hewasastrugglingstudentfromthebeginning，whowas5as“mentallyhandicapped(有生理缺陷的)”andwaseverplacedbackfrom6thgradeto5thgrade.Moreover，hehadatwinbrotherwhowasexceptionally6，makingLestheobvious“stupidtwin”．OnedayateacheraskedLestosolveaproblemonthechalkboard，butLes7，sayingthathecouldn’t.“Ofcourseyoucan，”theteacherres