Stop! Listen! What do you hear? You may hear many different sounds. Some of those sounds may be noisy. Noise is loud and unwanted sound.
Noise can be caused by many kinds of machines, such as motorcycles, jet planes, tractors and so on. And, to some people, rock bands are also noise.
What happened to people who live near noisy machines or use them over a period of time? Doctors find that these people have trouble in sleeping, But, most important, constant loud noise can cause a loss of hearing.
Scientists use a unit of measure called a decibel to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at this high level causes the greatest hearing loss.
【小题1】 From the article we know noise is ___________.
| A．wanted sound | B．loud and unwanted sound |
| C． all sounds that you can hear | D．comfortable sound |
【小题2】 A “decibel” is a _________
| A．unit that measures sound | B．kind of noise |
| C．machine that makes very loud noise | D．person who hates noise |
【小题3】According to the passage, loud noise can ________.
| A．help people sleep better | B．stop machine |
| C． cause a loss of hearing | D．kill people |
【小题4】The main idea of this passage is that __________
| A．noise pollution can be a serious problem |
| B．rock bands are noisy |
| C．noise can cause people to be mad |
| D．some people hate noise deeply |
【小题5】 Study the chart below, Which room would be the quietest?
Room
| Noise Level
|
A
| 35 decibels
|
B
| 120 decibels
|
C
| 130 decibels
|
D
| 40 decibels| A． Room A | B． Room B | | C． Room C | D． Room D |
查看答案和解析>>
— Listen! What’s the noise? — My brother ______ the program of the World Cup in the sitting room. | A．watches | B．has watched | C．is watching | D．watched |
查看答案和解析>>
Stop. Listen! What do you hear? You may hear many different sounds. Some of those sounds may be noise. Noise is a loud or unwanted sound.
Noise can be caused by many kinds of machines, such as motorcycles, jet planes, farm tractors(拖拉机), rock music is also noise.
What happens to people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble in sleeping. But, most important, constant(不断的) loud noise can cause a loss of hearing.
Scientists use a unit of measure called decibel(分贝) to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from traffic and from some rock bands can measure over 120 decibels. Noise at this high level(层次) causes the great hearing loss.
根据短文内容，选择正确的答案（每小题1分，共5分）
【小题1】According to the passage, noise is .
| A．any kind of sound | B．a loud or unwanted sound | | C．all sounds that you can hear | D．terrible sound |
【小题2】A decibel is a . | A．unit that measures sound | B．kind of noise | | C．machine that makes loud noise | D．person who hates sound |
【小题3】According to the passage, loud noise can . | A．help people to sleep better | B．stop machines | | C．cause a loss of hearing | D．kill people |
【小题4】We can conclude（推断） from the passage that . | A．noise is a serious problem | B．rock music isn’t noisy | | C．noise is only from traffic | D．some people hate any sound |
【小题5】Study that diagram below. would be the quietest. Room Noise Level
A 40~65 decibels
B 35 decibels
C 120 decibels
D 130 decibels
|
A. Room A B. Room B C. Room C D. Room D
查看答案和解析>>
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.
|
1.
|
|
A．look
|
B．listen
|
C．hear
|
D．see
|
|
|
2.
|
|
A．may be
|
B．maybe
|
C．may
|
D．be
|
|
|
3.
|
|
A．such
|
B．for example
|
C．such like
|
D．some examples
|
|
|
4.
|
|
A．not
|
B．as well
|
C．too
|
D．also
|
|
|
6.
|
|
A．in sleeping
|
B．to sleep
|
C．slept
|
D．sleep
|
|
|
7.
|
|
A．hear
|
B．ears
|
C．heard
|
D．hearing
|
|
|
8.
|
|
A．called
|
B．is named
|
C．calling
|
D．names
|
|
|
9.
|
|
A．from
|
B．between
|
C．both
|
D．among
|
|
|
10.
|
|
A．reaches
|
B．does
|
C．causes
|
D．is
|
|
查看答案和解析>>
Stop and listen! What do you hear? You may hear many different sounds. Some of those sounds may be noise. Noise is a loud or unwanted sound.
Noise can be caused by many kinds of machines, such as motorcycles, jet planes (喷气式飞机), farm tractors, and power motors. And, to some people, rock music is also a noise.
What happens to people who live near noisy machines or use them over a period of time? Doctors have found that these people have trouble in sleeping. And most importantly, constant (连续的) loud noise can cause loss of hearing.
Scientists use a unit of measure called a decibel(分贝) to measure the loudness of a sound. The sound of a quiet room, for example, measures 35 decibels. Talking measures between 40 and 65 decibels. Sounds from traffic and from some rock bands measure over 120 decibels. Noise at such high level causes the greatest hearing loss.
根据短文内容，判断下列句子是否正确，对的涂（A），错的涂（B）。(10分)
【小题1】According to the passage, noise is all sounds that you can hear.
【小题2】A “decibel” is a machine that makes loud noise.
【小题3】Loud noise can help people sleep better.
【小题4】Not all people think that rock music is a noise.
【小题5】We can infer (推断) from the passage that noise is a serious problem.
查看答案和解析>>
|
