新編英語教程2（即是商務(wù)英語專業(yè)的基礎(chǔ)英語用書）里面,

1、新編英語教程2（即是商務(wù)英語專業(yè)的基礎(chǔ)英語用書）里面，課文里的幾段英文要翻譯成中文下面是全部內(nèi)容，只要將英文翻譯成中文就行了。97MachineswithBrainsTheoperationofautomaticmachinesisbasedon“feedback”.Themachineisgivenawayof“watching”whatitdoesof“recognizing”whentostopdosomethingelse.As

2、impleexampleoffeedbackcanbefoundinthecontrolofacentralheatingoilburnerbyathermostat.Thewkingpartofathermostatisabarmadeoftwopiecesofdifferentmetalsattachedbacktoback.Thetwometalsexpwhentheygetwarmbutoneexpsfasterthantheo

3、ther.Asaresultwhenthebargetswarmitbeginstocurl.Whenitcoolsoffitstraightensoutagain.Thebarissetnexttoascrewsothatittouchesthescrewwhenitisstraightbutpullsawaywhenitiscurled.Thebarthescrewarebothpartofanelectricalcircuitth

4、atcontrolstheswitchmechanismoftheoilburner.Whentheairinthebuildingbecomescoolthebarcoolsstraightenstouchesthescrew.Thiscompletesanelectriccircuittheoilburnerisswitchedon.Astheairinthebuildingbecomeshottersodoesthebaritbe

5、ginstocurl.Itpullsawayfromthescrewthecurrentstopsflowingtheoilburnerisswitchedoff.Athermostatofthiskindcanbeadjustedtokiipthetemperatureofthehouseatanyrequiredlevel.10.7TheEnglishLanguagePartIUnftunatelythefactthatone’sn

6、ativelanguageisrelatedtoanotherlanguagedoesn’thelpagreatdealwhenonestartstolearntheotherlanguage.EventhoughlanguagessuchasEnglishDutcharecloselyrelatedarequitesimilarinsomerespectsstilleachoneactuallyoperatesinasystemofi

7、tsow.Eachsystemincludestheparicularsoundsstressesintonationpatternsthatareusedbyspeakersofthatsystem.Eachlanguagerhasitsownstrictgrammaticalrulespertainingtothewayswdsarefmedputtogetherinsentences.eachlanguagedeterminest

8、hemeaningswhichwdsmayhaveingivensituations.11.7TheVirtueCalledDevotionWhenGrma’sabilitiestoseehearwalkadequatelybegantofailnumerousfamilymeetingswereheldtodiscusswhattodo.Noonewantedtolivewithherthatwasevident.Wetalkedof

9、placingherinaretirementhomebutthatideawasquicklydiscarded.AlthoughGramwouldbewithmepeopleherownageshewouldseeevenlessofherfamilythatwouldbreakherheart.Besidesthereallygoodhomeswereextremelyexpensivetheinexpensiveoneswere

10、unappealing.MotherflatlystatedthatGrmawouldnotendupinanursinghome.WhenthetimecameGrmawouldtakeupresidenceinherhome.WhenGrmawaseighteenshehadhadtoquitschooltolookafterherailingparentsshehadloyallycaredfthemuntiltheirdeath

11、s.Motherwasnotabouttoallowhermothertoageawayinunfamiliarsurroundings.Iadmiremymothergreatlyfthisdecision.Itwasnotaneasyonefherbutitwasaclearone.Whensomanyothersareheedlesslyshunningtheresponsibilityofagingparentsmymother

12、stsoutwithstrength.12.7The“GreenRevolution”The“greenrevolution”isthenamegiventothedevelopmentofhighyieldingcerealgrainssuchaswhentricecn(maize).Onlyafewyearsagovariouswriterswerepredictingwideswpreadfamineasearlyas1975.T

13、heybasedthispredictiononthehighrateofpopulationgrowththelimitedfoodsupply.Butbecauseofthe“greenrevolution”thereisnowhopethattherewillbeenoughfoodfthepeopleofthewldfthenext2030yearsevenatthepresentrateofpopulationgrowth.V

14、arioustechnologicaldevelopmentsthatwillhelpfeedthewldinthefutureareinprogress.Theseincludeharvestingmefoodfromtheseanewfoodsfromsoybeanscottonseedotheroilseedsproteinsfromganismsgrownonpertroleum.ButasDr.Blaugpointedouti

15、nhisspeechwhenacceptingtheNobelPeacePrizethetechnologyisavailableffeedingthewldprovidedthetotalpopulationofthewldstayswithinreasonablelimits.13.7Hallowe’enHallowe’enisthelastnightofOctoberitusedtobethoughtthemostenchante

16、dnightoftheyear.Itwasthenightwhenwitchesevilspiritscamebackonearthtoweavetheirmagicspells.Superistitiouspeoplekeptupmanystrangeoldcustomsinaneffttokeeptheseevilinfluencesaway.Farmersusedtolightbigfiresintheirfieldsthefar

17、mwkerstheirfamilieswouldwalkaroundthefieldssingingoldsongshymns.Atintervalsthestrangeprocessionwouldstoptohearthelocalpriestofferprayerstothegoodspiritsaskthemtohelpkeeptheevilonesaway.Manyofthehouseshaveajacko’lanternin