Question

Everything that humans hear is in the form of waves (波).Just as the eye sees light waves in the form of colors, the ear hears sound waves in the form of noises. The ear and the eye turn these different waves into signals that the brain (大腦) can make sense of.

The ears and brain have an amazing ability to recognize（識別）particular sounds. For example, a mother often can tell when her baby is crying even if there are other crying babies in the same room. This is because the sound of her baby’s cry has special meaning to her and the brain has recorded is importance.

The ability to recognize sounds improves with experiences. As the brain receives information about sounds from day to day, it stores the information in its memory. When the brain hears new sounds, it gives meaning to them based on the information already in the memory. This is why certain words or songs can make a person happy. Often it is not the words or songs themselves that cause this feeling. The sounds are connected to happy memories for that person.

Another hearing process controlled by the brain is to decide where a sound is coming from. One ear is usually closer to the source (來源) of a sound than the other ear is. Sound waves are stronger when they reach the ear that is closer. They also reach the closer ear first. The brain recognizes these differences and uses them to decide the location of the source of the sound.

1.Which of the following shows the normal hearing process of a mother hearing her baby crying?

a. The ears receive the sound waves.

b. The mother recognizes her baby’s cry.

c. The ears turn the sound waves into signals.

d. The baby’s cry travels in the form of sound waves

e. The brain connects the signals to the information in the memory.

A. d-a-c-b-eB. d-a-c-e-b

C. a-d-c-b-eD. a-d-c-e-b

2.. Certain words or songs can change a person’s moods mainly because of his .

A. lifestyle B. personality

C. experiences D. hobbies

3. What is the best title for this passage?

A. Human Brain’s Amazing Facts

B. Human Hearing Characteristics

C. How to improve Hearing

D. How Do Humans Hear

 

Answer 1

1.B

2.C

3.D

【解析】

試題分析：這篇短文主要介紹了我們?nèi)耸窃鯓勇牭铰曇舻�。某些話語或歌曲可以改變一個(gè)人的情緒，主要是因?yàn)樗�的�?jīng)驗(yàn)。對于一個(gè)一只耳朵失去聽力的人來說，判斷聲音的來源是最困難的。原因是當(dāng)聲波到達(dá)較近耳朵的時(shí)候會(huì)比較強(qiáng),聲波會(huì)先到達(dá)較近的耳朵，大腦會(huì)辨認(rèn)出這些不同并利用它們來判定聲音來源。

1.下列哪項(xiàng)表明母親聽到她的嬰兒哭聲的一般過程？通讀第一、二段，可知B。

2.某些話語或歌曲可以改變一個(gè)人的情緒，主要是因?yàn)樗�的�?jīng)驗(yàn)。根據(jù)第三段內(nèi)容可知答案，故選C。

3.。通讀全文，主要講的是人怎樣聽到聲音的內(nèi)容，故選D。

考點(diǎn)：科普類短文閱讀。