高一英语完形填空与阅读理解分层强化训练

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1、高一英语完形填空与阅读理解分层强化训练　  PassageA　　阅读理解　　OnOctober12,1989,someBritishscientistswereworkingatthecomputerstolookfortheinformationtheyneeded.Suddenlytheysawalotofverybrightpointscrossingthecomputersscreens.Atthesametimethecomputerswereworkingmuchslower.Tofindoutwhatwashapp

2、eningtheystoppedtheirworktochecksomepartsofthecomputers.Totheirhorror(恐怖),theyfoundoutthatmostoftheirstoredinformationwasgotridofbycomputerviruses(病毒)!Clearlyallthesecomputershadbeeninfected(感染)bycomputerviruses.　　Itissaidthatthecomputervirusesweremadebyagroupofyoungm

3、enfondofplayingtricks.①Theyallhadexcellenteducation.Theycreatedthevirusesjusttoshowtheirintelligence(才能).ThesekindsofcomputervirusesarenamedJerusalemViruses.Thesevirusescanstayincomputersforalongtime.Whenthetimecomestheywillattack(袭击)thecomputersbyloweringthefunctions

4、(功能),damagingtheirnormalprogramsorevengettingridofalltheinformation.②　　WenowcometoknowthatJerusalemVirusesoftenattackcomputersonFridayandthattheyarespreading(传播)toalotofcomputers.AmongthecountriesthatwereattackedbycomputerviruseslastyearareBritain,Australia,Switzerlan

5、dandtheU.S.Buttillnow,howtogetridoftheterriblevirusesremainsaproblem.　　根据文章内容，选择正确答案：　　1.Whenthevirusesattackthecomputers,thecomputerswillwork____.　　A.normallyB.slowly　　C.fasterD.well　　2.Thegroupofyoungmencreatedthevirusesto____.　　A.damagethecomputers　　B.testtheirabil

6、ity　　C.tellpeoplethattheywereintelligent　　D.playatrickonusersofthecomputers　　3.Accordingtothepassage,computervirusesseemto____.　　A.havebeeninnatureforyears　　B.stayinanycomputers　　C.bedifficulttogetridofatpresent　　D.beabletobegotridofinthenearfuture　　4.Accordingtothepa

7、ssage,whichofthefollowingisTRUE?　　A.Lastyearfourcountriesfoundtheircomputerwereinfectedbyviruses.　　B.Theviruseswillcometoanewcomputerafterstayingintheoldoneforsometime.　　C.Scientistsaretryingtofindawaytogetridoftheviruses.　　D.TheJerusalemVirusesaredangeroustohumanheal

8、th.　　难句注释　　①Itissaidthatthecomputervirusesweremadebyagroupofyoungmenfondofplayingtricks.据说计算机病毒是由一群喜欢搞恶作剧的年轻人制造出来的。　　Totalwo