【Thesenseofsoundisoneofourmostimportantmeansofknowingwhatisgoingonaroundus.Soundhasawastedproduct,too,intheformofnoise.Noisehasbeencalledunwantedsound.Noiseisgrowinganditmaygetmuchworsebeforeitgetsandbetter.】

　　Thesenseofsoundisoneofourmostimportantmeansofknowingwhatisgoingonaroundus.Soundhasawastedproduct,too,intheformofnoise.Noisehasbeencalledunwantedsound.Noiseisgrowinganditmaygetmuchworsebeforeitgetsandbetter.Scientists,forseveralyears,havebeenstudyinghownoiseaffectspeopleandanimals.Theyaresurprisedbywhattheyhavelearned.Peaceandquietarebecominghardertofind.Noisepollutionisathreatthatshouldbelookedatcarefully.Thereisasayingaboutitbeingsonoisythatyoucan’thearyourselfthink.Doctorswhostudynoisebelievethatwemustsometimeshearourselvesthink.Ifwedon’twemayhaveheadaches,otherachesandpains,orevenworsementalproblems.Noiseaddsmoretension(紧张)tosocietythatalreadyfacesenoughstress.Butnoiseisnotanewproblem.InancientRome,peoplecomplainedsomuchaboutnoisethatthegovernmentstoppedchariots(四轮马车)frommovingthroughhestreetsatnight!Waysofmakinglessnoisearenowbeingtested.Thereareevenlawscontrollingnoise.Wecannotreturntothe“goodolddays”ofpeaceandquiet.Butwecanreducenoise–ifweshoutloudlyenoughaboutit.(本题分数：10分.)

　　(1).Whyarescientistssurprisedbythefindingsintheirnoisestudy?

　　A、

　　Becausetheworldisbecomingmoreandmorenoisy.

　　B、

　　Becausetheyhavelearnedthatnoiseisalsoakindofpollution.

　　C、

　　Becausenoiseisanunwantedwasteforhumanbeings.

　　D、Becausepeopleknewlittleaboutthedangerofnoisebefore.

　　(2).Whatmaybetheresultifwecannothearourselvesthink?

　　（2分）

　　A、

　　Wemayforgetwhatwehavethoughtabout.

　　B、

　　Ourthoughtsmaybeinterfered.

　　C、

　　Ourmindmaybeharmed.

　　D、WEmayhavedifficultyusingtherightwords.

　　(3).Whenthewritersayswecannotreturntothegoodolddays,hemeansthat().（2分）

　　A、

　　oursocietyisbecomingmuchworsethanbefore

　　B、

　　inourmodernsocietyitishardtoleadaquietlife

　　C、

　　theolddaysweremuchhappierthanthepresenttime

　　D、itisimpossibleforustodealwithnoiseaswedidbefore

　　(4).Fromthelastsentenceofthepassagewecanlearnthat()