Your ears allow you to hear many different so...

Your ears allow you to hear many different sounds.Some sounds can be pleasant to hear and some are not so pleasant.The louder the sound and the longer you listen to it，the more possible it is to cause damage(损害) to your hearing.

Some sounds not only harm your hearing，but also can make it hard to pay attention while reading or doing homework and prevent you from falling asleep.It is important that you learn about sound and how to identify(辨认) when it is harmful to you.

Sound is measured in units called decibels(分贝)．The greater the number of decibels，the louder the sound and the more harmful it is to your ears.The sound at 85 decibels and above may harm your hearing.

Nowadays，noise pollution is more and more serious，so you should try to protect your hearing.

◇ Turn down the TV，video game，radio，and music player.

◇ Walk away from sound that is too loud.

◇ Wear hearing protectors when needed.

1.What can we learn from the first paragraph?

A. There are two different sounds.

B. All the sounds are pleasant to hear.

C. Some sounds can damage your hearing.

D. It is good for you to listen to louder sounds for a long time.

2.Harmful sounds can ________.

①damage your hearing

②stop you from falling asleep

③keep you from having dinner

④prevent you from paying attention to doing homework

A. ①②③　　 B. ①②④

C. ②③④　　 D. ①③④

3.The sound at ________ is harmful to your hearing.

A. 0　　 B. 60　　 C. 80　　 D. 120

4.The sound of ________ is about 140 decibels.

A. busy city traffic　　 B. washing machines

C. rocket launch　　 D. fireworks

5.Which of the following is helpful to protect your hearing?

A. Turning up the music player.

B. Staying in a quiet place.

C. Attending a rock concert.

D. Walking on a busy street.

九年级英语阅读单选中等难度题查看答案及解析

The world　　　　 many interesting sounds. Some are unpleasant to our ears while　　　　 are very pleasant to hear. In a single day you probably hear　　　　 sounds. All sounds are different. Some　　　　 loud, some sounds are high, others are low, some sounds are useful.

　 　　 sound we can’t talk or listen to each other. The ringing of the alarm clock wakes people up. The hooting(鸣笛声) of a car warns people of danger.

Some sounds are harmful. When planes fly low on the land, the very loud sounds can damage the house. Very loud sound can even make people　　　　 .We know sound travels about one kilometer in three 　　　　　　 . In a thunder storm you see the lighting first and then hear the thunder. This is because light travels　　　　　　 than sound.

Next time you see lighting, count the number of seconds before you hear　　　　 . Divide this number by three. This will tell you　　　 kilometers away the thunder storm is.

1.A. full of　　 　　 B. fill with　　 C. is filled of　　　　 D. is filled with

2.A. others　　　 　 B. the other　　 C. another　　　　　　　 D. the others

3.A. hundreds of　 B. few　　　　　　 C. much　　　　　　　　　 D. one hundred of

4.A. may　　　　　 B. maybe　　　　　 C. may be　　　　　　　　 D. can

5.A. Of　　　　　　　 B. With　　　　　 C. Without　　　　　　 D. By

6.A. happy　　　　　 B. blind　　　　　 C. deaf　　　　　　　　 D. off

7.A. hours　　　　 B. days　　　　　　 C. minutes　　　　　　 D. seconds

8.A. more　　　　　　 B. faster　　　　 C. quickly　　　　　　　 D. enough

9.A. the thunder　 B. the noise　　 C. the sound　　　　　　 D. the next

10.A. how much　　　 B. how many　　　 C. how far　　　　　　 D. how long

九年级英语完形填空中等难度题查看答案及解析

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 and 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.

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. A decibel is a 　　　 .

A. unit that measures sound                B. kind of noise

C. machine that makes loud noise            D. person who hates sound

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

4. We can conclude from the passage that 　　　 .

A. noise is a serious problem                B. rock music isn’t noise

C. noise is only from traffic                D. some people hate any sound

5.Study the diagram below. 　　　 would be the quietest.

A. Room A        B. Room B            C. Room C             D. Room D　

九年级英语阅读理解中等难度题查看答案及解析

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，判断正(T)误(F)。

1.According to the passage, noise is all sounds that you can hear.

2.A “decibel” is a machine that makes loud noise.

3.Loud noise can help people sleep better.

4.Not all people think that rock music is a noise.

5.We can infer (推断) from the passage that noise is a serious problem.

九年级英语阅读理解中等难度题查看答案及解析

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）。

1.According to the passage, noise is all sounds that you can hear.

2.A “decibel” is a machine that makes loud noise.

3.Loud noise can help people sleep better.

4.Not all people think that rock music is a noise.

5.We can infer (推断) from the passage that noise is a serious problem.

九年级英语阅读判断困难题查看答案及解析

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)

1.According to the passage, noise is all sounds that you can hear.

2.A “decibel” is a machine that makes loud noise.

3.Loud noise can help people sleep better.

4.Not all people think that rock music is a noise.

5.We can infer (推断) from the passage that noise is a serious problem.

九年级英语阅读理解中等难度题查看答案及解析

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.

九年级英语完型填空中等难度题查看答案及解析

Sounds are everywhere. You have two cool parts — ears on your body that can let you hear the sounds.

The ear is made up of three different parts: the outer ear, the middle ear and the inner ear. These parts all work together so you can hear sounds.

The outer ear is the part that you can see. It moves the sound waves(波浪) to the part of the ear inside the head. Inside your ear, you have an eardrum(耳膜). The eardrum is a thin piece of skin. Sound waves push against the eardrum. This makes the eardrum vibrate. When it vibrates, it moves its tiny bones. The bones help sounds move along to the inner ear. Then you can hear the sounds.

Ears are very useful. With the help of your ears, you can hear any sound. Maybe the sound is as quiet as your cat. Maybe it is so loud, like a plane flying by. Hearing is one of the most important senses, and it allows you to communicate, to learn and to enjoy things like music.

Believe it or not, your ears can help you keep balance. If there’s something wrong with your ears, you may fall down easily.

Therefore, ears should be protected well. We should protect our ears from loud noises in the daily life: When you listen to music with headphones on, make sure that the sound is not too loud. Remember to take breaks after listening for a while and let your ears have a good rest.

1.What is the writer trying to do in this passage?

A.Refuse an invitation. B.Express feelings.

C.Introduce body parts. D.Communicate experience.

2.The underlined word “vibrate” in the passage means “________”.

A.stop B.shake C.jump D.ring

3.The writer gives ________ pieces of advice on how to protect the ear.

A.two B.three C.four D.five

4.What can we know from the passage?

A.The inner ear is a thin piece of skin.

B.Your two ears can keep your balance.

C.You should always wear your headphones.

D.Your ears allow you to communicate with cats.

5.What’s the best title for this passage?

A.Hearing Sense B.Find the Sounds

C.Loud Noises D.Know Our Ears

九年级英语阅读单选中等难度题查看答案及解析

If your ears are working well, you hear sounds all the time. You can't switch(关掉) your ears off, even when you are asleep.

Listening

When you really want to listen to something, you tell your brain to focus on that sound. If your ears are healthy and are both working well, they can turn down other sounds while you focus on what you want to hear. If one ear isn't working as well as the other, they can't do this. If your hearing cells(细胞) have been damaged by too much noise or music, what you want to hear can get mixed up and lost in the other sounds around. With__healthy__ears__you__can__choose__what__you__want__to__listen__to,__but__you__can't__choose__what__you__hear.

Understanding

Your brain deals with the received sounds and tells you what they mean. Some people have problems understanding what they are hearing because their ears don't work well and they don't hear all the sounds. The brain does not get enough information to understand the messages or they may be mixedup.

Selective(选择的) hearing

Lots of mums and dads think that kids have this “problem”. They think that the kids select what they are going to hear and what they can't hear! Many mums say that dads do this, too. In fact, this is something we may all do to try and make our lives a bit easier. Some children wrote what they liked to hear and what they didn't like to hear.

31题完成句子；32～33题简略回答问题；34题写下本文的主题句；35题将文中画线句子译成汉语。

1.If one ear isn't working as well as the other，

________________________________________________________________________.

2.What does your brain do when you are listening?

________________________________________________________________________

3.Which of the suggestions do you think is the most important for you? Why?

(Please answer within 25 words.)

________________________________________________________________________

4.________________________________________________________________________

5.________________________________________________________________________

九年级英语多任务混合问题困难题查看答案及解析

The world _______ many interesting sounds. Some are unpleasant to our ears while _______ are very pleasant to hear. In single day, you probably hear_______ sounds. All sounds are different. Some　 _______loud, some sounds are high, some are low, some sounds are useful.

_______sound, we can't talk or listen to each other. The hooting (鸣笛声) of a car warns people of danger.

Some sounds are harmful. When planes fly low _______ the land, the very loud sounds can damage the house. Very loud sound can even make people deaf.

We know sound travels about one kilometer in three _______ . In a thunder storm you see the lighting first and then hear the thunder. This is because light travels _______ than sound.

Next time you see lighting, count the number of seconds before you hear the thunder.

_______this number by three. This will tell you　 ____________ kilometers away the thunder storm is.

1.A. full of　　 B. fill with　　 C. is filled of　　 D. is filled with

2.A. others　　 B. the other　　 C. another　　 D. other

3.A. hundred of　　 B. hundreds of　　 C. hundreds　　 D. hundred

4.A. may　　 B. maybe　　 C. may be　　 D. can

5.A. Of　　 B. With　　 C. Without　　 D. By

6.A. in　　 B. on　　 C. about　　 D. over

7.A. hours　　 B. days　　 C. minutes　　 D. seconds

8.A. more fast　　 B. much faster　　 C. more faster　　 D. much fast

9.A. Divide　　 B. Give　　 C. Leave　　 D. Put

10.A. how much　　 B. how many　　 C. how far　　 D. how long

九年级英语完型填空困难题查看答案及解析