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1、Top202eAnswerKey1CHAPTER1Exercise1,p.2Bytheendofthetwentiethcentury,almosteverypersoninthecountryownedatleastonetelephoneandonetelevisionset.Mosthomesalsohadawashingmachine,andmanypossessedamicrowaveoven.Sincethebeginningof
2、thenewmillennium,thecellularphonehasbecomecommonplace,andmosthouseholdsnowhaveacomputer.Thetimeshavecertainlychanged.Theyhavechangedsomuchthatmostpeoplecannotevenimagineaneveningathomewithoutacomputerorsomeotherappliance.Exercise2,p.31.correct2.an
3、ewcarsnewcars3.computercomputers4.correct5.correct6.agoodemployeesgoodemployees7.correct8.people9.AninterestratesInterestrates10.aconsumeritemsconsumeritemsExercise3,p.4Note:ThereareonlySIXirregularpluralnounsinexercisethree.Researchhasshownthateveryone,evenchildren,issubjec
4、ttostress.Inaddition,statisticsindicatethatstressaffectspeople’sphysicalhealth,causingheadachesandheartproblems.Afterconductingsurveysandcollectingalargeamountofdata,somepsychologistsarenowtryingtodeterminethebestmethodsforcopingwithstress.Theyarealsotestingvarioushypothesestodet
5、erminewhysomeworkersseemlessaffectedbystressthantheircounterparts.Preliminaryanalysesofthedataseemtosupportthetheorythatpeoplewithadaptiveskillsandoptimisticattitudessufferfewerphysicalproblemsassociatedwithstress.Finally,newresearchtomeasurethephysicaleffectsonhealthofbothpositi
6、veandnegativestressinpeople’slivesisunderway.Theresultsofthisresearchwillguidephysiciansintreatingtheirpatientswhosufferfromchronicstress.Copyright©HeinleTop202eAnswerKey2Exercise4,p.5Itisacommonlyknownfactthatdairyproductssuchasmilk,yogurt,andcheesearerichsourcesofcalcium,buthow
7、manypeopleknowthatthesefoodproductsarealsoloadedwithprotein?Thisisthereasonthatdietitiansrecommendthatpeopleconsumetwotofourservingsofthisgroupeachday.Aglassofmilkoracupofyogurthashigh-qualityproteinthatisequivalenttoanounceofmeatorcheeseortooneegg.Thesefooditemsarecertainlygoodf
8、oryourhealth.Wheneverpossible,however,yo
