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阅读理解。

Doyoulikelisteningtomusic?Doesallofthemusicbringhappinesstoyou?Doyouknowsomemusicisnoise?Whatisnoise?Noiseisaloudorunwantedsound.Itisalsocallednoisepollution.

Whereisnoisefrom?Noisecanbecausedbymanykindsofmachines,suchasmotorcycles,planes,farmtractorsandTVs.And,tosomepeople,rockbandsarealsonoise.

Whathappenstopeoplewholivenearnoisymachinesorusethemoveraperiodoftime?Doctorsfindthatnoisepollutioncaninfluencebothourhealthandbehavior.Itcancausehighstresslevels,hearingloss,sleepproblems,andotherharmfuleffects.

Scientistsuseaunit(单位)ofmeasure(测量)calledadecibeltomeasuretheloudnessofasound.Thesoundofaquietroom,forexample,measures35decibels.Talkmeasuresbetween40to65decibels.Soundsfromtrafficandfromsomerockbandscanmeasureover120decibels.Noiseatthishighlevelcausesthegreatesthearingloss.

Howdowereducenoisedamage?Turndownyourmusicplayerorwearearmuffs(耳罩)whenyouareworkinginanoisyenvironment.Earmuffsforhumancanprotectagainstnoisepollution.

【1】Accordingtothepassage,noiseis.

A．terriblesound

B．anykindofsound

C．allsoundsthatyoucanhear

D．loudsoundthatpeopledon'twant

【2】Which of the following is TRUE according to the passage?

A．A decibel is a unit that measures sound.

B．In fact, a decibel is also a kind of noise.

C．A person who hates sound belongs to decibels.

D．Machines that make loud noise are called decibels.

【3】According to the passage, loud noises can .

A．stop machines   B．cause a loss of hearing

C．improve people's hearing D．help people to sleep better

【4】We can infer from the passage that .

A．noise is only from traffic

B．any sound can hurt people

C．noise is a serious problem

D．rock music doesn't belong to noise

【5】Study this diagram below. Which of the room is suitable for you to do your homework?

A．Room A. B．Room B.

C．Room C. D．Room D.