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.

----Why do you speak in _________ a loud voice?

----Because I want to make myself ________ clearly.

A. such; hear              B. so; heard         C. such; heard               D. so; hear

语音

找出下列各组单词中画线部分的发音有几种读音

A. 一种              B. 二种             C. 三种            D. 四种

I’m glad ______ the good news that he joined the Party.

A. to hear???????????? B. of hearing??????????? C. for hearing

I’m sorry ______that bad news.