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1、新编英语教程2（即是商务英语专业的基础英语用书）里面，课文里的几段英文要翻译成中文下面是全部内容，只要将英文翻译成中文就行了。9．7MachineswithBrainsTheoperationofautomaticmachinesisbasedon“feedback”.Themachineisgivenawayof“watching”whatitdoesandof“recognizing”whentostopanddosomethingelse.Asimpleexampleoffeedbackcanb
2、efoundinthecontrolofacentral-heatingoil-burner,byathermostat.Theworkingpartofathermostatisabarmadeoftwopiecesofdifferentmetals,attachedbacktoback.Thetwometalsexpandwhentheygetwarm,butoneexpandsfasterthantheother.Asaresult,whenthebargetswarm,itbeginstocu
3、rl.Whenitcoolsoff,itstraightensoutagain.Thebarissetnexttoascrew,sothatittouchesthescrewwhenitisstraight,butpullsawaywhenitiscurled.Thebarandthescrewarebothpartofanelectricalcircuitthatcontrolstheswitchmechanismoftheoil-burner.Whentheairinthebuildingbeco
4、mescool,thebarcools,straightens,andtouchesthescrew.Thiscompletesanelectriccircuitandtheoil-burnerisswitchedon.Astheairinthebuildingbecomeshotter,sodoesthebar,anditbeginstocurl.Itpullsawayfromthescrew,thecurrentstopsflowingandtheoil-burnerisswitchedoff.A
5、thermostatofthiskindcanbeadjustedtokiipthetemperatureofthehouseatanyrequiredlevel.10.7TheEnglishLanguage,PartIUnfortunately,thefactthatone’snativelanguageisrelatedtoanotherlanguagedoesn’thelpagreatdealwhenonestartstolearntheotherlanguage.Eventhoughlangu
6、agessuchasEnglishandDutcharecloselyrelatedandarequitesimilarinsomerespects,stilleachoneactuallyoperatesinasystemofitsow.Eachsystemincludestheparicularsounds,stresses,andintonationpatternsthatareusedbyspeakersofthatsystem.Eachlanguagerhasitsownstrictgram
7、maticalrulespertainingtothewayswordsareformedandputtogetherinsentences.Andeachlanguagedeterminesthemeaningswhichwordsmayhaveingivensituations.11.7TheVirtueCalledDevotionWhenGrandma’sabilitiestosee,hear,andwalkadequatelybegantofail,numerousfamilymeetings
8、wereheldtodiscusswhattodo.Noonewantedtolivewithher;thatwasevident.Wetalkedofplacingherinaretirementhome,butthatideawasquicklydiscarded.AlthoughGrandamwouldbewithmorepeopleherownage,shewouldseeevenlessofherfamily---andthatwouldbre
