Our sense of hearing is one of the most important means of knowing what is going on around us. We are warned of danger by sounds. The sounds of music please us. Sound has a waste product, too, in the form of noise. Noise has been called unwanted sound. Noise is growing and it may get much worse before it gets any better.

Scientists, for several years, have been studying how noise affects people and animals and are alarmed by what they have learned.

Peace and quiet are becoming harder to find. Noise pollution is no joke. It is a threat that should be looked at carefully.

Sound is measured in units called decibels （分貝）. At a level of 140 decibels people feel pain in their ears.

Trucks, buses, motorcycles, airplanes, boats, and factories all make noise. This noise bothers not only our ears, but our minds and bodies as well.

There is a saying about "it is so noisy that you can't hear yourself think". Doctors who study noise believe that we must be able to hear ourselves think most of the time. If we don't, we may have headaches, other aches and pains, or even mental problems. Noise adds even more tension to a society which already faces too much stress.

 

49．The sense of hearing _______.

       A．makes people feel angry   

       B．makes people want to dance

       C．helps people to know what is happening around them

       D．is something harmful to people

50．When sound is turned into noise, _______.

       A．people become ill                                       B．it makes people forget the past

       C．people don't know how to deal with it         D．it becomes a kind of pollution

51．Why does the passage say " Peace and quiet are becoming harder to find " ?

A．Sounds of over 140 decibels are common these days.

B．There are always wars going on in the world.

C．The world is making more and more noise.

D．All kinds of machines make noises.

52．Which of the following statements is TRUE?

A．Scientists are warning people noise can be harmful.

B．It's possible for man to get rid of all noises.

C．Sounds under 140 decibels are not considered to be noise.

D．Society has become more lively because there is noise now.

練習冊系列答案
相關習題

科目：高中英語 來源： 題型：閱讀理解

閱讀下面短文，按照句子結構的語法性和上下文連貫的要求，在空格處填入一個適當?shù)脑~或使用括號中詞語的正確形式填空，并將答案填寫相應位置上。

The most influential book in my life

The Story of My Life by Helen Keller is the most influential book in my life. It __1__ (fill) with courage, struggle and faith throughout. Helen Keller was once in deep despair in her __2__ (child), but finally she decided to overcome her physical defects and live happily. Furthermore, she showed great patience, ___3___ (do) well in her long and hard learning period.

I have learned, above all, three lessons from her story. First, she taught me that often the road to success is to face hardships ___4____ (brave). Maybe you are born under an ill star yet you can stand a better chance ___5___ others. It is therefore important that you screw up your courage ____6____courage is needed. Second, the impairment of part of her senses did not prevent ___7___ from learning. On the contrary, she ___8___ (make) continual efforts to go deeper into the realm of knowledge her fortitude had thus helped her overcome many handicaps. ___9___, she advised that we should make the most of our sense-organs as if we ___10___ (lose) them soon because this way we would observe the world more carefully than ever before.

查看答案和解析>>

科目：高中英語 來源：2012屆廣東省廣州市禺山高級中學高三第一次月考英語試卷 題型：閱讀理解

Do you want to live with a strong sense of peacefulness, happiness, goodness, and self-respect? The collection of happiness actions broadly categorized(把…歸類) as "honor" help you create this life of good feelings.
Here's an example to show how honorable actions create happiness.
Say a store clerk fails to charge us for an item. If we keep silent, and profit from the clerk's mistake, we would drive home with a sense of sneaky(卑鄙的) excitement. Later we might tell our family or friends about our good fortune. On the other hand, if we tell the clerk about the uncharged item, the clerk would be grateful and thank us for our honesty. We would leave the store with a quiet sense of honor that we might never share with another soul.
Then, what is it to do with our sense of happiness?
In the first case, where we don't tell the clerk, a couple of things would happen. Deep down inside we would know ourselves as a type of thief. In the process, we would lose some peace of mind and self-respect. We would also demonstrate(演示) that we cannot be trusted, since we advertise our dishonor by telling our family and friends. We damage our own reputations by telling others. In contrast, bringing the error to the clerk's attention causes different things to happen. Immediately the clerk knows us to be honorable. Upon leaving the store, we feel honorable and our self-respect is increased.  Whenever we take honorable action we gain the deep internal rewards of goodness and a sense of nobility(高尚).
There is a beautiful positive cycle that is created by living a life of honorable actions. Honorable thoughts lead to honorable actions. Honorable actions lead us to a happier existence. And it's easy to think and act honorably again when we're happy. While the positive cycle can be difficult to start, once it's started, it's easy to continue. Keeping on doing good deeds brings us peace of mind, which is important for our happiness.
【小題1】According to the passage, the positive action in the example contributes to our_______.

A．self-respect B．financial rewardsC．advertising abilityD．friendly relationship
【小題2】The author thinks that keeping silent about the uncharged item is equal to_______.
A．lyingB．stealingC．cheatingD．advertising
【小題3】The underlined phrase "bringing the error to the clerk's attention" means_______.
A．telling the truth to the clerkB．offering advice to the clerk
C．asking the clerk to be more attentiveD．reminding the clerk of the charged item
【小題4】How will we feel if we let the clerk know her mistake?
A．We'll be very excited.B．We'll feel unfortunate.
C．We'll have a sense of honor.D．We'll feel sorry for the clerk.
【小題5】Which of the following can be the best title of this passage?
A．How to Live TruthfullyB．Importance of Peacefulness
C．Ways of Gaining Self-respectD．Happiness through Honorable Actions

查看答案和解析>>

科目：高中英語 來源：2011～2012學年度江蘇省沛縣漢源中學高二上學期期初考試英語卷 題型：填空題

根據(jù)所給首字母或漢語提示，寫出適當?shù)膯卧~形式，使得句子完整并正確。
【小題1】The terrible flood d________ all the houses in the village, leaving thousands of people homeless.  
【小題2】These people have made great c __________to the economic development of our country.
【小題3】With the development of technology, new digital products are r__________ old machines rapidly.
【小題4】Early to bed, early to rise will make you healthy, w__________ and wise.
【小題5】It is reported that over a dozen people have c__________ suicide in FOXCOM company in Shenzhen so far this year.
【小題6】The story told on TV was so touching that almost all the _____________ （觀眾）were moved to tears.
【小題7】The committee__________(采用) the new suggestion on how to protect the limited resources.
【小題8】The old woman died __________ (平靜地) in the arms of her loving husband.
【小題9】Although our sense of sight is overused ,our sense of touch and smell is ___________(忽視)
【小題10】Don’t you see that our country is trying its best to improve people’s living ____ (條件)?

查看答案和解析>>

科目：高中英語 來源：2012-2013學年安徽阜陽一中高三最后一次模擬考試英語卷（解析版） 題型：填空題

閱讀下面短文，根據(jù)所讀內容在表格中的空白處填入恰當?shù)膯卧~。

注意：每個空格只填一個單詞。

There are two basic ways to see growth: one as a product；the other as a process. People have generally viewed personal growth as an external（外在的）result or a product that can easily be identified and measured. The worker who gets a promotion，the student whose grades improve，the foreigner who learns a new language—these are examples of people who have measurable results to show for their efforts.

By contrast（對照），the process of personal growth is much more difficult to determine，since by definition it is a journey and not the specific signposts or landmarks along the way.The process is not the road itself，but the attitudes，feelings people have，and their caution or courage，as they meet with new experiences and unexpected difficulties.In this process，the journey never really ends;there are always new ways to experience the world，new ideas to try，new challenges to accept.

In order to grow，to travel new roads，people need to have a willingness to take risks，to face the unknown，and to accept the possibility that they may “fail” at first. How we see ourselves as we try a new way of being is necessary for our ability to grow. Do we see ourselves as quick and curious？If so，then we tend to take more chances and to be more open to unfamiliar experiences. Do we think we're shy and indecisive？Then our sense of fear can cause us to hesitate，to move slowly，and not to take a step until we know the ground is safe. Do we think we are slow to adapt to change or that we're not smart enough to deal with a new challenge？Then we are likely to take a more passive role or not try at all.

These feelings of insecurity and self-­doubt are both unavoidable and necessary if we are to change and grow. If we protect ourselves too much，then we stop growing. We become trapped inside a shell of our own making.

Two basic ways to see growth

   1.   

Examples

Product

Easily identified and measured

●The worker  2.   a promotion

●The students making 3. in grades

●The foreigner learning a new language

Process

●4. to determine

● Never really ends

●People's attitudes，feelings and their caution or courage，as they are   5.  with new experiences and difficulties beyond     6.   .

●Being 7.  to take risks，to face the unknown，and to accept possible   8.  

  9.    

●Too much self     10.   can prevent us from growing.

 

 

查看答案和解析>>

科目：高中英語 來源：2011-2012學年廣東省高三5月考前臨門一腳模擬考試英語試題（解析版） 題型：閱讀理解

Although April did not bring us the rains we all hoped for, and although the Central Valley doesn’t generally experience the sound and lightning that can go with those rains, it’s still important for parents to be able to answer the youthful questions about thunder and lightning.

The reason these two wonders of nature are so difficult for many adults to explain to children is that they are not very well understood by adults themselves. For example, did you know that the lightning we see flashing down to the earth from a cloud is actually flashing up to a cloud from the earth? Our eyes trick us into thinking we see a downward motion when it’s actually the other way around. But then, if we believed only what we think and we see, we’d still insist that the sun rises in the morning and sets at night.

Most lightning flashes take place inside a cloud, and only a relative few can be seen jumping between two clouds or between earth and a cloud. But, with about 2,000 thunderstorms taking place above the earth every minute of the day and night, there’s enough activity to produce about 100 lightning strikes on earth every second.

Parents can use thunder and lightning to help their children learn more about the world around them. When children understand that the light of the lightning flashing reaches their eyes almost at the same moment, but the sound of the thunder takes about 5 seconds to travel just one mile, they can begin to time the interval (間隔) between the flash and the crash to learn how lose they were to the actual spark (閃光).

1.According to the author, in the area of the Central Valley____.

A．rains usually come without thunder and lightning.

B．it is usually dry in April

C．children pay no attention to the two natural wonders.

D．parents are not interested in thunder and lightning.

2.We believe that lightning is a downward motion because_______.

A．we were taught so by our parents from our childhood.

B．we are taken in by our sense of vision.

C．it is a common natural sight.

D．it is a truth proved by science.

3.What is TRUE about lightning according to the passage?

A．Only a small number of lightning flashes occur on earth.

B．Lightning flashes usually jump from one cloud to another.

C．Lightning travels 5 times faster than thunder.

D．There are far more lightning strikes occurring on earth than we can imagine.

4.The underlined word “activity”  is most closely related to the word (s) _____.

A．cloud

B．lightning strikes

C．lightning flashes

D．thunderstorms

5.It can be concluded from the passage that _______.

A．we should not believe what we see or hear.

B．things moving downward are more noticeable.

C．people sometimes may have wrong ideas about ordinary phenomena.

D．adults are not as good as children in observing certain natural phenomena.

 

查看答案和解析>>

同步練習冊答案