摘要: When her father came back home, Joan with her friend. A. talked B. talks C. is talking D. was talking

网址:http://m.1010jiajiao.com/timu3_id_2408754[举报]

Everything that humans hear is in the form of waves (波).Just as the eye sees light wares in the form of colors, the ear and the eye Curs these different waves into signals that the brain (大脑) can make sense of.

The ears and brain have an Amazing amities to recognize(识别)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.

After hearing process controlled by the brain is to decide where a sound is coming from. One ear is usually closer to the source (来源) 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 ravels in the form of sound waves

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

A.d-a-c-b-e          B.d-a-c-e-b          C.a-d-c-b-e          D.a-d-c-e-b

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

A.lifestyle           B.personality        C.experiences       D.hobbies

3.According to the last paragraph, It will be the most difficult for a person who has lost the hearing in one ear to tell         .

A.where the source of a sound is             B.how loud a sound is

C.when a sound starts to appear              D.what makes a sound

4.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

 

查看习题详情和答案>>

 

Rachel lived in a small town in America. She always wanted to help others when she was young. At the age of 5, she learned about an organization named Locks of Love. It uses hair donations to make wigs (假发) for children who have    16    their hair because of cancer or other illnesses. Rachel then asked her mother to cut her long hair and send    17    to the organization.

At 8, she learned that other children had no clean    18    in Africa, and she was shocked. When her school began    19    money to build wells (井) there, she asked her parents to    20    holding her birthday party. Also, she asked her friends each to donate $9 to the project in Africa    21    giving her birthday presents.

One year later, it was her    22    birthday on June 12. She made a    23    page on the Internet with a goal of $300. However, Rachel was able to raise only $200. This made her a little    24   .

Unluckily, Rachel was badly hurt in an accident    25    eight days. That was a terrible shock to her friends. They wanted to find some ways of showing    26    to her. They began donating on Rachel’s birthday page. Donations    27    her $300 goal quickly and kept rising.

When it was clear that she would    28    come back to herself(苏醒), her parents donated her organs (器官) to other children. They also donated her hair a    29    time to Locks of Love.

More    30    was being raised. The total donations soon reached $100,000, then $300,000. So far more than $850,000 has been raised from all over the world, including donations from the Africans who are moved (感动) by the little American girl.

1.A. sold               B. lost         C. borrowed         D. used

2.A. them               B. her          C. one              D. it

3.A. room           B. air              C. toy              D. water

4.A. spending           B. making           C. raising              D. saving

5.A. stop               B. prevent          C. keep             D. finish

6.A. because of     B. out of           C. instead of           D. such as

7.A. eighth         B. ninth            C. tenth                D. eleventh

8.A. birthday           B. family           C. child                D. game

9.A. angry          B. satisfied            C. excited              D. sad

10.A. before            B. after            C. in                   D. during

11.A. interest          B. support          C. protection           D. thanks

12.A. passed            B. offered          C. showed               D. brought

13.A. ever              B. hardly           C. seldom               D. never

14.A. final             B. first            C. following            D. next

15.A. clothes           B. money            C. stationery           D. food

 

查看习题详情和答案>>

We drink tea every day. But more than three hundred years ago most of the people in Europe (欧洲) did not know anything about tea. Some people heard about it, but very few of them know what to do with it.

 There is a story about an English sailor (水手) who went to countries in the east, the west and the south. He went to India and China. One day he came home and brought some tea as a present for his mother. She told her friends about the present and asked them to a "tea party". When her friends came to the "tea party", the old woman gave them brown tea-leaves. The old woman's friends began to eat them. Of course, nobody liked the tea-leaves.

 At that time the sailor came in. He looked at the table and said, "Mother,what did you do with the tea?"

 "I boiled it,as you said."

 "And what did you do with the water?"

 "I threw it away(扔掉),of course." answered the old woman.

 "Now you may throw away the leaves,too," said her son.

1.Most of the people in Europe ___300 years ago.

A.drank tea every day

B.knew everything about tea

C.knew nothing about tea

D.liked to eat the tea-leaves

2.One day the English sailor brought his mother some tea from ___.

A.countries in the west

B.countries in the south

C.India or China

D.a tea shop in England

3.The sailor's mother asked her friends to her house, because ___.

A. the sailor told her to.       

B she liked to show off (炫耀)

C. she wanted to ask her friends what to do with the tea

D. she wanted to taste the tea together with her friends

4.At the "tea party",___.

A.all the woman's friends spoke highly of (高度评价)the tea.

B.nobody knew what to do with the tea

C.the woman didn’t eat the tea-leaves

D.the woman gave her friends each a glass of tea water

5.What mistake(错误) did the old woman make? She ___.

A.boiled the tea

B.did as the sailor said

C.threw away the water

D.didn't throw away the tea-leaves

 

查看习题详情和答案>>

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网