反正言之有理即可.

　　这两个开头可以通用.

　　这个是说觉得电子书缺点多的Peoplesaythatelectronicbookshavealotofadvantagesanddisadvantages,butinmyopinionthedisadvantagesarestrongerthanadvantages

　　这个是说电子书优点多的Opinionsvaryontherelativefeelofholdingandreadingane-readercomparedtoapaperbook,butdigitalbooksclearlycomeoutaheadinconvenience.YoucanbuyelectronicbooksovertheInternet,beginreadingthemwithinminutesandownasmanybooksasyouwantwithoutfillingyourhouse.Forsomereaders,owningpaperbooksoutweighstheseadvantages.Youcan'treselldigitalbooks,movingbooksbetweene-readerspresentsachallengeandlendingcomeswithrestrictions.

　　下面这些事综合比较,挑对应的开头写上就行.优点缺点各种有,随意用~~~

　　ComfortandPortability

　　Readingcomfortdependsonlightingandthetypeofe-readeryouuse.Ifyouhaveaback-littablet,youcanreadinanylighting,butabrightscreeninadarkroomcanirritateyoureyes--orasleepingpartner.ThescreensonreadersthatuseEInk,suchasmanyKindle,NookandKobomodels,lookmoreliketraditionalbookpagesbutrequireawell-litroomoramodelwithanintegratedfrontlight.Nomatterwhattypeofreaderyoupick,takeabreakevery20minutestoavoideyestrain.Anothersortofcomfortmakese-booksagoodchoiceifyoutravelfrequently:Youcancarryhundredsoftitleswithoutbreakingyourback.

　　OwnershipandResale

　　Aswithotherdigitallydistributedproducts,youcan'tresellortransfere-bookstonewowners.Withpaperbooks,youarefreetoresellyourbooksandyoucanbuyusedbooksatsteepdiscounts.Somee-bookstoressuchasAmazonandBarnes&Nobleallowyoutotemporarilyloansomebookstofriends,butwithrestrictions.Inoneconcerningsituation,Amazonremovedpurchasedbooksfromreaders'Kindlesandissuedrefundsafterlearningthetitlesweresoldwithoutthepublisher'spermission.Althoughararesituation,theeventhighlightsthedifferenceinownershipfromphysicalbooks.

　　E-BookFormatsandCompatibility

　　Somee-bookstoresande-readerslockyouintoaparticularbrand,makingitpossibletoloseaccesstopurchasesifyouchangee-readers.Forexample,whilemoste-readerssupporttheePubformat,theAmazonKindledoesnot,forcingownerstobuybookswithproprietaryformattingfromAmazondirectly.Youcanconvertunprotectedbooksbetweenformats,butmostdigitalbookstoresusedigitalrightsmanagementthatmakesconversiondifficult--andinsomeregions,illegal.Buyingpaperbooksavoidsthisentireconcern,guaranteeingyoucanreadyourpurchasesforaslongasthebindingholdstogether.

　　ConsiderationsforAuthorsandPublishers

　　PublishingbooksdigitallythroughservicessuchasAmazon'sKindleDirectPublishingmakesitfareasierforanewauthortogetabooktomarketthanworkingwithatraditionalpublisher,buttheprocessleaveseditingandpromotionstotheauthoraswell.Digitalpublishingalsomakesiteasyforpiratestoshareworksillegally--evenformatswithDRMaresusceptible.AstudybyDigimarcin2010found1.5to3milliondailysearchesonGoogleforpiratedbooks,representinganestimated$2.8billioninlostvalue.

　　InstantDelivery

　　Unlikeapaperbook,anebookcanbedeliveredinstantlytoyourereaderdeviceorhomecomputer.TheAmazonKindleandBarnes&Noble'sNookarebothcapableofallowingthepurchaseanddow