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1、大家论坛club.topsage.com大家论坛欢迎您!!!更多四六级资料,请访问http://club.topsage.com/forum-58-1.htmlPartⅠWriting(30minutes)Directions:Forthispart,youareallowed30minutestowriteacompositiononthetopicCollegeGraduatesWorkasVillageOfficials.Youshouldwriteatleast150wordsaccordingtotheoutlinegivenbe
2、lowinChinese:1.你是否认为大学生当村官是个好主意2.大学生能给乡村提供些什么3.大学生能从村官职位中获得什么注意:此部分试题在答题卡1上。PartⅡReadingComprehension(SkimmingandScanning)(15minutes)Directions:Inthispart,youwillhave15minutestogooverthepassagequicklyandanswerthequestionsonAnswerSheet1.Forquestions1-7,choosethebestanswerfr
3、omthefourchoicesmarkedA),B),C)andD).Forquestions8-10,completethesentenceswiththeinformationgiveninthepassage.HowInfectiousDiseasesWorkThehumanbodyisbothsurroundedandinhabitedbybillionsofmicroorganisms.Mostmicroorganismsareharmlessorevenbeneficial;forexample,bacteriathatnor
4、mallyliveinthedigestivesystemhelpdigestfood.Occasionally,however,amicroorganismcapableofcausingadiseaseinvadesthebody.Diseasescausedbysuchmicroorganismsarecalledinfectiousdiseases.大家网www.topsage.com大家论坛club.topsage.comInfectiousdiseasesarecontagious;thatis,theycanbepassedf
5、romonepersontoanother.Theycanbetransmittedbyskincontact,throughbodyfluids,incontaminatedfoodordrink,orviaairborneparticlescontainingthemicroorganisms,althoughthepathwaysandeaseoftransmissionvarybydisease.Animalorinsectbitesareanothermeansoftransmission.Thetwomostcommontype
6、sofinfectiousdiseasesarebacterialinfectionsandviralinfections.Disease-causing,orpathogenic,bacteriaeitherattackthebody’stissuesdirectlyorcausedamagebysecretingpoisonoussubstancescalledtoxins.Fortunately,bacterialinfectionsareoftencurable.Certainbacteriacanbekilledbydrugs;o
7、therbacterialdiseasescanbepreventedbyvaccination.Virusesarethesmallestknownmicroorganisms.Theyareresponsiblefordiseasesasrelativelyharmlessasthecommoncoldandasseriousasmeningitis.Virusesliveandreproduceonlywithinlivingcells,andonlycertaincellsaresusceptibletoaspecificvirus
8、.Youcanbehosttomanyviruseswithoutsufferinganyadverseeffects,butifenoughcellsareattacked,y