Stop .Listen!What do you hear You may hear many different sounds .Some of those sounds may be nouse .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

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Stop .Listen!What do you hear You may hear many different sounds .Some of those sounds may be nouse .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
Stop .Listen!What do you hear You may hear many different sounds .Some of those sounds may be nouse .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 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 quier 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 great hearing loss.
（）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
（）2.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
（）3.We can conclude 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
()4.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

do,play,go,study,have,listen,stop,practice的过去式 1.Boys and girls,( )I have something important totell you.A.stop talking and listen to me B.stop talking and listening to me C.stop to talk and listen to me D.stop to talk and listening to me 2.What animal do you liake ( A.better B.best C.very D.well Stop talking and listen to me为什么是stop doing而不是stop to do,stop to do不是停下一件事去做另一件 what kind of music do you love ______?A.to listen B.listen C.listen to D.to listen to our teacher asked us to stop what we were doing and listen为什么listen不加ing Stop talking and listen to me.这句话中,为什么listen前面没有to不是有短语stop to do sth.吗? our teacher asked us to stop what we were doing and listen中文翻译 listen!what ______the students and the teacher ______to do?(plan) What music do yuo often listen at home?错在哪儿 What do you think____(stop)him going to hospital yesterday? i do not what you just stop by in my stop thinkingstop thinking,just do what you want what shuould we ___(do) to stop pollution What can you do to stop colds from spreading? what can you do to stop prejudice and racism? STOP LOOK AND LISTEN怎么样 what do you enjoy ______?A.listening B.listening to C.to listen to D.listen what can you do to stop sandstorm?为什么用to stop动词不定式