专业、全面、易懂的全领域名词百科

Thesenseofsoundisoneofourmostimportantmeansofknowingwhatisgoingonaroundus.Soundhasawastedproduct,too,intheformofnoise.Noisehasbeencalledunwantedsound.Noiseisgrowinganditmaygetmuchworsebeforeitgetsanybetter.Scientists,forseveralyears,havebeenstudyinghownoiseaffectspeopleandanimals.Theyaresurprisedbywhattheyhavelearned.Peaceandquietarebecominghardertofind.Noisepollutionisathreatthatshouldbelookedatcarefully.Thereisasayingaboutitbeingsonoisythatyoucan’thearyourselfthink.Doctorswhostudynoisebelievethatwemustsometimeshearourselvesthink.Ifwedon't,wemayhaveheadaches,otherachesandpains,orevenworsementalproblems.Noiseaddsmoretension(紧张)toasocietythatalreadyfacesenoughstress.Butnoiseisnotanewproblem.InancientRome,peoplecomplainedsomuchaboutnoisethatthegovernmentstoppedchariots(四轮马车)frommovingthroughthestreetsatnight!Waysofmakinglessnoisearenowbeingtested.Thereareevenlawscontrollingnoise.Wecannotreturntothe"goodolddays"ofpeaceandquiet.Butwecanreducenoise--ifweshoutloudlyenoughaboutit.Whyarescientistssurprisedbythefindingsintheirnoisestudy?

题型：单选题

选项

A. Because the world is becoming more and more noisy.

B. Because they have learned that noise is also a kind of pollution.

C. Because noise is an unwanted waste for human beings.

D. Because people knew little about the danger of noise before.

正确答案：A