英语课文

Psychologistsnowbelievethatnoisehasaconsiderableeffectonpeople’sattitudesandbehavior.Experimentshaveprovedthatinnoisysituations(eventemporaryones),peoplebehavemoreirritablyandlesscooperatively;inmorepermanentnoisysituations,manypeoplecannotworkhard,andtheysufferfromsevereanxietyaswellasotherpsychologicalproblems.

However,psychologistsdistinguishbetween“sound”and“noise”.“Sound”ismeasuredphysicallyindecibels.“Noise”cannotbemeasuredinthesamewaybecauseitreferstothepsychologicaleffectofsoundanditslevelof“intensity”dependsonthesituation.Thus,forpassengersatanairportwhoexpecttohearaeroplanestakingoffandlanding,theremaybealotofsound,butnotmuchnoise(thatis,theyarenotbotheredbythenoise).Bycontrast,ifyouareataconcertandtwopeoplebehindyouarewhispering,youfeeltheyaretalkingnoisilyevenifthereisnotmuchsound.Younoticethenoisebecauseitaffectsyoupsychologically.

Bothsoundandnoisecanhavenegativeeffects,butwhatismostimportantisifthepersonhascontroloverthesound.Peoplewalkingdownthestreetwithearphones,listeningtomusicthattheyenjoy,arereceivingalotofdecibelsofsound,buttheyareprobablyhappyhearingsoundswhichtheycontrol.Ontheotherhand,peopleinthestreetwithoutearphonesmusttoleratealotofnoisewhichtheyhavenocontrolover.Itisnoisepollutionthatweneedtocontrolinordertohelppeoplelivemorehappily.

96.Accordingtotheselection,people_______.

A.cannotworkbetterinanoisysituation

B.willsufferfromcompletedeafnessbecauseofnoisepollution.

C.canbepsychologicallyaffectedbyworkinginverynoisyfactories.

D.maycooperatewellinanoisysurrounding.

97.“Sound”,asdefinedbypsychologists,______.

A.canbemeasuredinthesamewaythat“noise”ismeasured

B.maybeextremelyharmfultohealth

C.isnotatalldifferentfrom“noise’.

D.canbemeasuredbymachines.

98.Peoplewaitingatanairport______.

A.enjoyhearingaeroplanestakingoffandlanding.

B.areusuallynottroubledbythenoise.

C.caneasilytellsou