问题描述:

初三英语短文填空

Whenyousingintheshoweryourvoicesoundslouderandricher.Didyoueverwwhy?

Yourvoicesoundsloudinthebathroombecausetheroomissmall.Soundisafofwaveenergythatcantthroughair.Butsoundwaveslosestrengthastheymovethroughtheair.Thatmeansthatitgetshtohearasoundthefartheryouarefromitssource(来源).Inthebathroom,thesoundwavesdonotgoveryfar.Soundsstayloud.Youdon’tevenneedamicrophone(扩音器)tofeellikeyou’reonstageatamusicconcert!

Thewalls,ceiling,andfloorahelpyourvoicesoundbetter.Soundwavesbounce(反弹)offthehardsurfacesinabathroomandcomebtoyou.Thismakesyourvoicesoundlouderandclearer.

Theairinthebathroomreallygetsintotheact.Soundwavesmaketheairvibrate(振动).Inasmallspace,thisletsyourearscalotofthosesongvibrations.

There’sakindofwavethatgetsthingsshakinginyourhouse.Canyouguesswhatitis?Takeatriptothekitchen.

Whenyousingintheshoweryourvoicesoundslouderandricher.Didyoueverwwhy?

Yourvoicesoundsloudinthebathroombecausetheroomissmall.Soundisa(f)ofwaveenergythatcan(t)throughair.Butsoundwaveslosestrengthastheymovethroughtheair.Thatmeansthatitgets(h)tohearasoundthefartheryouarefromitssource(来源).Inthebathroom,thesoundwavesdonotgoveryfar.Soundsstayloud.Youdon’tevenneedamicrophone(扩音器)tofeellikeyou’reonstageatamusicconcert!

Thewalls,ceiling,andfloor(a)helpyourvoicesoundbetter.Soundwavesbounce(反弹)offthehardsurfacesinabathroomandcome(b)toyou.Thismakesyourvoicesoundlouderandclearer.

Inasmallspace,thisletsyourears(c)alotofthosesongvibrations.

There’s(a)kindofwavethatgetsthingsshakinginyourhouse.Canyouguesswhatitis?