完形填空
Stop and listen! What do you __1__? You may hear many different sounds. Some of the sound __2__ noise. Noise is a loud or unwanted sound. Noise can be caused by many kinds of machines, __3__, cars, planes, farm tractors (拖拉机) and so on. And, to some people, rock music is __4__ a noise. What happens __5__ people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble __6__. But, more importantly, constant loud noise can cause a loss of __7__.
Scientists use a unit of measure __8__ a decibel to check the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talking measures __9__ 40 and 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at this high level __10__ the greatest hearing loss.

A．look B．listen C．hear D．see

A．may be B．maybe C．may D．be

A．such B．for example C．such like D．some examples

A．not B．as well C．too D．also

A．with B．to C．on D．about

A．in sleeping B．to sleep C．slept D．sleep

A．hear B．ears C．heard D．hearing

A．called B．is named C．calling D．names

A．from B．between C．both D．among

A．reaches B．does C．causes D．is