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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.Asimpleexampleoffeedbackcanbefoundinthecontrolofacentral-heatingoil-burner
2、,byathermostat.Theworkingpartofathermostatisabarmadeoftwopiecesofdifferentmetals,attachedbacktoback.Thetwometalsexpandwhentheygetwarm,butoneexpandsfasterthantheother.Asaresult,whenthebargetswarm,itbeginstocurl.Whenitcoolsoff,itstraightensoutagain.Thebarissetnexttoascrew,sothatittouchesthescrewwheni
3、tisstraight,butpullsawaywhenitiscurled.Thebarandthescrewarebothpartofanelectricalcircuitthatcontrolstheswitchmechanismoftheoil-burner.Whentheairinthebuildingbecomescool,thebarcools,straightens,andtouchesthescrew.Thiscompletesanelectriccircuitandtheoil-burnerisswitchedon.Astheairinthebuildingbecomes
4、hotter,sodoesthebar,anditbeginstocurl.Itpullsawayfromthescrew,thecurrentstopsflowingandtheoil-burnerisswitchedoff.Athermostatofthiskindcanbeadjustedtokiipthetemperatureofthehouseatanyrequiredlevel.10.7TheEnglishLanguage,PartIUnfortunately,thefactthatone’snativelanguageisrelatedtoanotherlanguagedoes
5、n’thelpagreatdealwhenonestartstolearntheotherlanguage.EventhoughlanguagessuchasEnglishandDutcharecloselyrelatedandarequitesimilarinsomerespects,stilleachoneactuallyoperatesinasystemofitsow.Eachsystemincludestheparicularsounds,stresses,andintonationpatternsthatareusedbyspeakersofthatsystem.Eachlangu
6、agerhasitsownstrictgrammaticalrulespertainingtothewayswordsareformedandputtogetherinsentences.Andeachlanguagedeterminesthemeaningswhichwordsmayhaveingivensituations.11.7TheVirtueCalledDevotionWhenGrandma’sabilitiestosee,hear,andwalkadequatelybegantofail,numerousfamilymeetingswereheldtodiscusswhatto
7、do.Noonewantedtolivewithher;thatwasevident.Wetalkedofplacingherinaretirementhome,butthatideawasquicklydiscarded.AlthoughGrandamwouldbewithmorepeopleherownage,shewouldseeevenlessofherfamily---andthatwouldbre
