PAGEPAGE4全國農(nóng)業(yè)推廣碩士專業(yè)英語作業(yè)題PartOneVocabularyandStructureFillinthebalnkswithwordsorexpressionschosenfromthefollowinglist.Changetheformwherenecessary.speculatespecifycommitmentdespitedesirableaccesscontributionadolescentbanishinhabitantidentifyfrustrationimpactsanctionimpressivehituponswitchcorrespondtoobligationvarious1、TheU.Nwouldimposeeconomicagainsttheoffendingnationsorgovernment.2、Theboysandgirlsarefondofbehavingdifferentlyfromseniors.3、Iasatisfactoryexplanation.4、Manontheoriginoftheuniversesincethebeginningogthehumanhistory.5、Youcanfromyourmindtheideaofholdingapartyduringtheexaminationweek.6、Thecompanythatwewouldhaveonesubjecttoanother.7、TheAmericanCongreetheBritishParliament.8、Wearetryingtofindsomepeoplewhohavearealsenseoftothejob.thesandstorm,theJohnsonsdrovetothexillatocelebratetheir25thanniversaryofmarriage.10、Youareundernotopayforgoodswhichyoudidnotorder.11、Menstillholdthevastmajorityoftheleast-ormodt-dangerousjobs,suchasloggersandminers.12、Hedoesn’texpecttoseechangesovernight.13、Studentsmusthavetogoodbooks.14、Hemadeaquickfromanunfriendlytoafriendlymannerwhenhesawthattheycouldhelphim.people’saccounts,ore-mailvirusesaroundtheworldtakesaknowledgeofthetechnologyusedtocommitthecrimes.Insteadofusingfingerprintsorfollowingsuspects,governmentagentspainstakinglysortoutthemessofnumbersandsymbolsandlettersthatcanleadthembackthroughthecomputersystemtothecybercriminals.OnesuchinvestigationledtothearrestofthemanaccusedofsendingtheextremelydangerousMelissavirus,acomputervirusthatdestroyedfilesincomputersaroundtheworldinthespringof1999.Theagentsreceivedhelpfromonlineservicetechnicians,softwareexperts,andacomputer-sciencestudent.Allhelpedtotracethecomplexpathwaysofthevirusabacktothetelephonelineandcomputerofthemanwhoreleasedit.Inanothercase,agentsworkedfortwoyearstocatchacybercriminalwhowas,amongotheroffenses,stealingcreditcardnumbers.Agentsfoundhimbytracingapathfromacomputerhebrokeintotothemobiletelephonehehadused,whichledtohisaddress—andarrest.Thegovernmentagentsarealsoworkingtoblockcybercriminalswhocouldcutoffpowerandconfusetelephonecompanies.“Thinkoftheconsequencesifthepowerwentoutforaweek—notinjustonetownorcitybutdownthewholeEastCoast,saysMichaelVatis,anFBIagent.FromTVstohospitalequipment,allwouldfail.MakaveliandTooshortwerearrestedforthechargesofbreakingintocomputers.Theyweregivenprobation(假釋),requiredtoperformcommunityservice,andpreventedformhavinghomecomputerswithmodems.Punishmentforadultscanbemoresevereandusuallyincludessomejailtime.Mostpeopleusetheircomputerslegally.Forthefewwhodon’t,however,cyberpoliceandbettersecuritysystemswillmakeitharderforcybercriminalstogetawaywiththeircrimes.6.Whatshouldbeknowntocatchcybercrimials?

A.Creditcardnumbers. B.Suspects’fingerprints.

C.Thetechnologyusedtocommitthecrimes. D.Numbers,symbolsandletters.7.HowdangerouswasMelissavirusbackin1999?

A.Itdestroyedcomputerfilesworldwide.

B.Manyagentstookupthecase.

C.Technicians,experts,andastudentwereinvestigated.

D.Telephonelinesandcomputersweredestroyed.8.Howseriouscouldacomputercrimebecome?

A.Manytelephonecompanieswouldgobankrupt.

B.Acitywouldbethrownintodarkness.

C.Powerwouldbeoutdowntheeastcoastforaweek.

D.Therewouldbenomoretelevisionprogramstowatch.9.Whatcanweinferabouttheprocessofcatchingcomputercriminalsfromthepassage?

A.Itcouldbedangerous. B.Itisrathercomplicatedtoidentifythecybercriminals.

C.Itwouldcauseahugeloss. D.Ithasbeenaseverepunishment.10.Thelastsentenceofthepassagemayserveasa_________.

A.warning B.complaint C.suggestion D.commandPassageThreeBesidesprovidinganidealenvironmentforseaplantsandanimalstolivein,seawaterhasothervalues,oneofwhichisthatitconstantlymoves,anditsmovementsproduceenergy.Themostobviousmovementsarethewavesandthetides.Windescausethewaves,andthegravitationalpullofthemoonandthesuncausesthetides.InplacesliketheBayofFundyinCanada,thedifferencebetweenthehighandlowtidelevelcanbeasmuchas40feet.FranceandBritainarenowtryingtouseenergyinthetidestoproduceelectricity.Wavescanproduceelectricityandsomeexperimentsaretakingplacetolearnmoreaboutthis.Oneofthemostencouragingareasofresearchusesthedifferencebetweenthetemperatureofseawateratthesurfaceanddeepdowntoproduceelectricity.11.Oneofthevaluesofseawateristhat____.

A.ithasnoplantsinit. B.itpullsthesunandthemoon

C..itflowsallthetime D.itfeedsallthetime12.Wavesandtidesarecausedby_____.

A.thesameforces B.differentforces

C.theirownmovements D.plantsandanimals13.Accordingtothepassage,whichofthefollowingstatementsisnottrue?

A.Thetemperaturedifferenceofseawatercanproduceelectricity.

B.Theenergyinthetidescanproduceelectricity.

C.Wavescanproduceelectricity.

D.Theplantsandanimalsintheoceancanproduceelectricity.14.Itisbeingtriedin_____touseenergyinthetidestoproduceelectricity.

A.manycountriesintheworld B.Canada

C.somedevelopedcountries D.BritainandtheUnitedStates15.Thebesttitleforthispassageis_______.

A.TidesandWaves B.Howtoproduceelectricity

C.Seawater D.AnotherCheapEnergyPassageFourMillionsofpeopleareenrolledineveningadulteducationprogramsacrossAmerica.Communitycollegeshavebecomepopularandtheirenrollmentshaveincreasedrapidly.Largeuniversitiesareofferingmorecoursesintheeveningsforadultstudents.Inthisway,thedemandformoreeducationisbeingmet.Onereasonforthisisthatmanyolderpeoplearechangingtheirprofessions.TheyarelookingfordifferentcareersAnotherreasonisthatrepaircostshaveincreased.Adultsaretakingcourseslikeplumbingandelectricalrepair.Thiswaytheyhopethatthehighcostsforrepairscanbeavoided.Advancedtechnologyisthemostimportantreasonfortheriseinadulteducation.Engineers,teachersandbusinessmenaretakingadulteducationclasses.Theyhavefoundthatmoreeducationisneededtodotheirjobwell.Variouscoursesareoffered.Computersandbusinesscoursesaretakenbymanyadultstudents.Foreignlanguages,accountingandcommunicationcoursesarealsopopular.Somestudentsattendclassestoearndegrees.Otherstakecoursesfortheknowledgeandskillsthattheycanreceive.Thelivesofmanypeoplehavebeenenrichedbecauseofadulteducation.16.Onecantakeadulteducationcourses_______.

A.inaprivatecollegeoruniversity

B.athome

C.athis(orher)workingplace

D.inacommunitycollegeoruniversity17.Adulteducationhasbecomepopular_________.

A.becausemanyoldpeoplearechangingtheirprofessions

B.becausesomepeoplearelookingforbetterjobs

C.becausetheyhavehighcostsforrepairsandadvancedtechnology

D.alloftheabove18.Generally________.

A.largeuniversitiesareofferingmuchhelpforusstudents

B.universitiesaregivingmorecoursesduringthedaytime

C.universitiesarenotgivingcoursesintheeveningsforadultstudents

D.largeuniversitiesaregivingmoreclassesintheeveningsforadultstudents19.Whichofthefollowingcoursesisnotofferedineveningadulteducationprograms?

A.Pl