EThirty years ago, when the movie version of my novel Jaw was published, few people includ

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Thirty years ago, when the movie version of my novel Jaw was published, few people including me knew very much about great white sharks. For hundreds of generations, we humans have been taught to fear and hate sharks, and the movie touched a nerve of horror.
Now something long thought impossible has happened. A great white shark was successfully held in capacity for several months. In August last year a very young female great white shark was caught accidentally in a fisherman's net off Huntington Beach, California, and then kept in an ocean pen (栏栅) for 25 days. After being moved to the Monterey Bay Aquarium (水族馆), she grew well in the million-gallon Outer Bay Exhibit. She was so lovely that people all liked her very much. Perhaps she was too young to understand that the big tank was not her natural environment, because she didn't hit her head against the walls in an attempt to swim away as others of her kind have done. And she began to feed almost immediately on small fish offered to her on a pole. In the months that followed, the shark suffered no serious injuries, caught no diseases, and grew noticeably larger, breaking all records for great white sharks in capacity. The longest that any other great white shark had been held was 16 days.
Until February 23, that is, when she hit and killed a soup fin shark (翅鲨) , as she grew bigger and her behavior grew more aggressive, officials at the Aquarium knew the time had come. On March 31, after 198 days in the aquarium, the great white shark was released into the Pacific.
Scientists still have a lot to learn about sharks, especially great white sharks which are now considered to be in danger. Scientists do know that sharks are necessary to ocean health. Remove any significant animal from the sea food chain and you will risk destroying the balance of nature.
72. We can see that in the film Jaw the shark was once described as .
A. a pet of children B. a horror to human beings
C. a friend of the aged D. a guard of its owner
73. Different from the others of her kind, the young female great white shark was somewhat in the beginning.
A. terrible and dangerous B. fierce and cruel C. loyal and friendly D. gentle and lovely
74. By saying that officials at the aquarium knew the time had come, the writer probably means that the female great white shark .
A. had to be killed B. escaped from the big tank
C. had to be set free D. began to hit and kill other animals
75. What conclusion can be drawn from the text?
A. We should protect great white sharks as well as other ocean animals.
B. The female great white shark will be attacked by some other animals.
C. Great white sharks are becoming more and more
D. We should kill the enemies of white sharks in the oceans.72---75 BDCA

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