This is a rabbit. It is running into its hole. You will say, “What has this to do with language?” Can you see the rabbit’s tail? When a rabbit sees something dangerous, it runs away. Its white tail moves up and down as it rurns and warns other rabbits that there is danger. The rabbit has told them something without making sound. It has given them a signal.

Many other animals use this kind of language. For example, when a bee has found some food, it goes back to its home. It cannot tell the other bees where the food is by speaking to them, but it does a little dance in the air.

____53____ A dog barks when a stranger comes near. Some birds make several different sounds, each with its own meaning. Sometimes we human beings speak in the same way by making sounds like “Oh!” or “Ah!” when we are frightened or pleased.

But we have something that no animal has a large number of words that have the meanings of things, actions, feeling or ideas. We are able to give each other information, to tell or inform other people what is in our mind or how we feel. ____54___ No animal has the wonderful power of language.

____55____ Perhaps he began by making sounds like those made by animals. Perhaps he made low rough sounds like a pig when he lifted something heavy. Perhaps he made sounds like those he heard all round him --- water splashing(溅), bee humming（发出嗡嗡声）, a stone falling to the ground. Somehow he learned to make words. As the centuries went by, he made more and more new words. This is what we mean by language.

____56____ Today there are about fifteen hundred different languages in the world. Each contains many thousand words. A very large English dictionary, for example, contains four or five hundred thousand words. But we do not need all these. To read a book you need to know only about two thousand words. Before you leave school, you will learn only a few thousand more.

根据短文内容，从A、B、C、D、E中选出最适合放入短文空缺处的选项，并将序号及相应答案写在答题纸上。选项中有一项是多余选项。

A.     Some animals say things by making sounds.

B.      No one knows how man learned to make words.

C.      People living in different countries made different kinds of words.

D.     Some people are good at listening to and communicating with animals.

E.      By writing words down we can remember things that have happened, or send messages to people far away.

Chess Club

       The Chess Club is open to anyone interested in chess, including the novice, the expert, or anyone in between! Club meetings include opportunities to play others as well as to plan tournaments(锦标赛).

Advisor: Behrooz Vakil               Telephone: 636-922-8347

Communications Club

       The Communications Club seeks, provides and promotes insight about the practical uses of communication amongst the campus community through education and opportunity. One of our club activities is to invite practitioners to our meetings to make presentations on communication activities (e.g. case studies such as information campaigns, international communications, public relation efforts).

Advisor: Lee Ann Nelson             Telephone: 636-922-8327

Global Student Network

       Global Student Network (GSN) provides the opportunity for international students and others to share their experiences and cultures with each other. GSN hopes to educate the college and local community about their cultures and countries and to learn more about American culture from the college and local community.

Advisor: Michelle Killeen            Telephone: 636-922-8566

Soccer Club

       The Soccer Club provides opportunity for both men and women. During the fall, the men’s team plays in the Mid-America Collegiate Soccer League and the women’s team plays in the Clayton City League. Students are required to take part in tryouts in order to participate in league or tournament competition. Tryouts or practices begin in August. In the spring, the club scrimmages on Friday afternoons from 1-3 p.m. and hosts a fundraiser soccer competition. The spring season begins in April and ends in May. A student must have a copy of his primary medical insurance policy and a copy of a current physical examination before participation.

Advisor: Darren Osburn             Telephone: 636-922-8564

45. What does the underlined word “novice” probably mean in the passage?          

A. Child.                                                          B. Player.                   

C. Beginner.                                                     D. Teacher.

46. Li Yan, a Chinese girl hoping to learn communication skills, might call ____________. 

A. Behrooz Vakil                                               B. Lee Ann Nelson       

C. Michele Killeen                                             D. Darren Osbrun

47. Mike is curious about different cultures. He should sign up for ____________.   

A. Chess Club                                                  B. Soccer Club             

C. Communications Club                                   D. Global Student Network

48. If you want to play in the soccer league competition, you have to _____________.  

A. raise money for the Soccer Club                     

B. be tested how well you play soccer

C. take part in the spring season                          

D. know the medical insurance policy

Damage to Ozone layer Gets Worse

    In the middle of winter, when snow is falling in many parts of the United States, scientists have sounded a warning to people who plan to spend many hours in the sun this summer. The warning is: The sun’s summertime rays(光线) are more dangerous than once thought.

    A team of scientists from 80 nations recently reported to the United Nations that a layer(层) of ozone (臭氧层) in the atmosphere, which protects humans from harmful levels of ultraviolet（紫外线） radiation, will be thinner over the United States this summer. The thinner layer allows more ultraviolet rays from the sun to reach Earth. The extra amount of ultraviolet radiation could cause an increase in the number of cases of skin cancer.

    Scientists first became concerned about the ozone layer in the mid-1980s when a hole was discovered in the layer above Antarctica during the winter. The hole was caused by chemicals used in refrigerators and air conditioners. When these chemicals are sent out into the atmosphere, they produce gases that destroy the ozone.

    Concern about the protective ozone layer rose more recently when data(数据) from satellites and ground stations showed that ozone levels were dropping over areas other than Antarctica. Low ozone levels were recorded in the spring and summer over the United States and over other populated areas in the world.

    Although many countries have already begun stopping the use of ozone destroying chemicals, the new findings are expected to advance the timetable for a total ban(禁止) of the chemicals.

41.The scientists have observed the ozone layer_____.       

A. since 1980                             B. since last winter   

C for about 30 years                   D. for about one year

42. The ozone layer in the atmosphere can _____.         

A. do a lot of good to human beings in many ways

B. protect humans from diseases caused by bad weather

C. do a lot of harm to human beings in the summer-time

D. protect humans from harmful levels of ultraviolet radiation

43. Scientists first found that there was a hole in the ozone layer_____.  

A. above Arctic during the winter in the mid-1980s

B. above Antarctica during the winter in the mid-1980s

C. over somewhere in the north of the equator in 1980

D. over the U.S.A in the summertime in the mid-1980s

44. The damage to the ozone layer was caused by_____.     

A. the changeable weather                            B. ozone-destroying chemicals

C. chemicals from refrigerators                    D. chemicals from air conditioners

 ________you have passed your driving test, you can drive on your own.

A. In case         B. Even if            C. Now that               D. So that

The 6-year old child has ________painting and has won several prizes.

A. problems in     B. a gift for           C. a word with        D. account for

When crossing the Rocky Mountains, the cousins were amazed that they ________ some mountain goats and even a grizzly bear and an eagle.

A. tried to glare at                       B. managed staring at

C. sought to meet                       D. managed to catch sight of