Pretoria, South Africa – Hundreds of swimmers play in the water along a South Africa beach. Suddenly a huge shark appears off shore and heads for the bathers. Before it can get close to the swimmers, the shark, for some mysterious reason, starts swimming parallel to the beach. Then it turns away from the shore and heads out to sea, leaving the swimmers untouched.
Such a scene will soon become common along shark-in-fasted (鲨鱼成群的) shores. An electrical engineer from the University of Pretoria has developed an electrical system that repels (击退) sharks by controlling their movements. Confused by this action, the sharks end up turning away from the beach.
In this unusual shark-repellent method, an insulated (绝缘的) cable is buried on the bottom of the sea around a beach where people swim. When an electric current is sent through the cable, an electric field is produced in the water above the cable.
When shark swims into the electric field, nerve cells just below the shark' s skin will sense the field. The electricity produces a reflex (反射作用) action in the shark' s muscles, causing the dangerous animal to swim parallel to the cable. Confused by increasing loss of control of its muscles, the shark suddenly changes its direction and heads seaward, away from the electric field.
In a test of the invisible new shark-repellent system, a cable was placed around a beach in St. Lucia, an island around the beach a long time ago to keep sharks away from swimmers, and a net was left in place during the experiment.
When the electric field was left on for more than a year and a half, no sharks were found in the net. However, when the power was turned off,89 sharks ended up in the net.
Using the electric-wall method instead of net to protect bathers would avoid the needless death of many sharks, said biologists. Currently, thousands of sharks die each year when they become trapped in protective nets that surround holiday resorts in Africa and Australia. About 10 to 15 humans are killed by sharks annually.
1．Why doesn' t the shark attack the swimmers according to the passage?
A．Because there are so many swimmers in the water.
B．Because the shark isn’t so hungry as to eat the swimmers.
C．Because of some mysterious power from the heaven.
D．Because there is an invisible electric field confusing the shark.
2．An electrical engineer from the University of Pretoria has developed __ .
A．a protective net
B．a new shark-repellent system
C．the electric field
D．an insulated cable
3．An electric field is produced in the water above the cable .
A．only when a shark swims into the electric field
B．only when an insulated cable is buried on the bottom of the sea around a beach where people swim
C．only when an electric current is sent through the cable
D．only when the sharks are trapped in protective nets
4．Which of the following is NOT TRUE according to the passage?
A．Protective nets had been fixed earlier than the new shark-repellent system.
B．The new shark – repellent system will probably replace the protective nets.
C．Thousands of sharks have died each year since this new system was put into use.
D．Using the electric-wall instead of nets would avoid the needless death of many sharks.
第二部分阅读理解（共两节，满分40分）
第一节(共15小题；每小题2分，满分30分)
Coca Cola is an American icon – and sometimes seen as a symbol of the country’s economic right. But one of the world’s famous companies will play a different role during the 2008 Olympic Games: promoting Oriental (东方的) culture to the world.
The man who is in charge of the project couldn’t be more suited for the job. The American has lived in the country for about 15 years, speaks fluent Chinese, and considers Beijing his hometown. David Brooks, vice-president and general manager of the Olympics Project Group of Coca Cola China, who has lived in the country for more than a decade, said: "We are working very hard to create a lot of special different kinds of items that are very Oriental in character and have a strong Oriental identity. "There is a lot of curiosity around the world about the country and about Oriental culture. So, we think we also have a role and opportunity to show people so many things."
Coca Cola has launched its logo(标识) with the Beijing Games, featuring kites and lucky clouds, traditional elements in the Oriental culture. Brooks considers it a good start. "We are doing a lot of similar programs, and in the next 570 days or so, as we count down to the Games, you will see more examples with strong Oriental spirit and identity."
He certainly has a sense of history. "The Olympic spirit, which is an ancient spirit from over 2,000 years ago, is alive. It still lives through the Olympic Games in the idea of balancing the body and mind, and doing the best," said Brooks, who has been to three Games. "It's like a big family celebrating together. I think all the members of my team and I feel it is a special honor to be involved in the Games."
1．The underlined word “icon” in the first sentence can be replaced by “ ”.
A．sign B．image C．portrait D．picture
2．What can we know about David Brooks from the passage?
A．He is vice – president and general manager of Coca Cola Corporation.
B．He is living in Beijing with his family.
C．He has mastered at least two languages.
D．He is especially curious about oriental culture.
3．Why will Coca Cola cooperate (合作) with the 2008 Olympic Games?
A．Because it is a good chance to let the world understand Oriental culture.
B．Because there is a lot of curiosity around the world about China and Oriental culture.
C．Because it contains a lot of enormous business opportunities.
D．Because it will promote Oriental culture to the world.
第二节完形填空 (共20小题；每小题1.5分，满分30分)
A fisherman was lying on a beautiful beach and enjoying the warm sunshine with one end of his fishing pole (鱼竿) placed in the sand.
Then a 21 came walking down the beach to have a 22 from his work. He saw the fisherman and decided to 23 why this fisherman was not working 24 .
“If you want to catch lots of fish, you should be 25 rather than lying on the beach!”
The fisherman asked, looking 26 at the businessman and smiling, “And what will my reward be?”
“Well, you can get big 27 to catch more fish!” the man answered.
“And then what will my reward be?” asked the fisherman, 28 smiling.
The businessman replied, “Then you will 29 money and you can buy more nets and also a big boat 30 you can get a lot more fish!”
“And then what will my reward be?” the fisherman asked the 31 question with a smiling face again.
The businessman was beginning to get 32 .
“You can buy a bigger boat, and hire (雇) some people to fish for you! Then you will be a rich man,” he said in a higher 33 .
Once again the fisherman smiled at him and asked, “And then what will my reward be?”
The businessman was 34 of his question and shouted at the fisherman, “Don’t you understand? You can become so 35 that you will never have to work for your living again! You can 36 on this beach and enjoy the 37 .”
The fisherman didn’t 38 the question this time. 39 , he asked “What do you think I’m doing right now?”
Not knowing 40 to say, the businessman left.
21．A. teacher B. doctor C. farmer D. businessman
22．A. look B. rest C. walk D. meeting
23．A. look up B. hunt for C. find out D. watch out
24．A. little B. much C. hard D. early
25．A. learning B. working C. sleeping D. resting
26．A. down B. up C. away D. out
27．A. fields B. space C. nets D. houses
28．A. still B. even C. not D. only
29．A. accept B. receive C. make D. create
30．A. as if B. even though C. so that D. although
31．A. same B. difficult C. special D. different
32．A. frightened B. interested C. hungry D. angry
33．A. voice B. sound C. grade D. place
34．A. fond B. tired C. proud D. worried
35．A. famous B. rich C. happy D. lucky
36．A. sit B. stand C. lie D. run
37．A. sunshine B. moonlight C. cool wind D. sunrise
38．A. reply B. repeat C. consider D. report
39．A. However B. Instead C. So D. Besides
40．A. when B. where C. what D. which
Don’t be too hard ________ David; he is only five years old.
|
A．on |
B．to |
C．about |
D．with |
I like the sofa we’ve found in the shop. In my opinion, it is a perfect ________ for the furniture (家具) in our sitting room.
|
A．game |
B．match |
C．suit |
D．fit |
The story took place in the 1920s, a time ________ jazz became popular in America.
|
A．which |
B．with which |
C．when |
D．among which |
