Sea farming is one of the brightest hopes for finding an answer to the world food problem. Although it may be years before sea farming produces large quantities of food, it is already successful. One of its successes is the growing of oyster（牡蠣）, which are very good to eat.

Oyster farming is a big new business on Cape Cod, where large crops of oysters have been harvested. The waters there were famous for oysters until the supply gave out about fifteen years ago. “There’s a whole age group of people who have never eaten oysters”, said Karl Touraine, manager of a company that grows oysters on nylon strings hanging from metal frames（框架）.

“For about twenty years the oyster has been in short supply, and our aim is to turn around this by using new, modern growing techniques,” he explained.

“Wareham, on Cape Cod, is the first place in the US where oysters are being grown on frames just off the bottom of the sea,” said Mr. Touraine. “It’s been done successfully in Norway and Australia and, in the last few years, in Spain. The Japanese have used this form of sea farming for years, and they’re the most successful, with a yearly crop of more than 46,000 pounds of oysters an acre.”

My Touraine’s group grows on strings, away from the bottom so that the oysters’ natural enemies cannot reach them. “When an oyster can be kept away from enemies and live in unpolluted water with plenty to eat, he’ll grow fast.” Karl noted happily.

1．From the passage, we know       .

       A．not every water is suitable for growing oysters

       B．sea farming has been producing large quantities of food on Cape Cod

       C．the production of oysters on Cape Cod is over 46,000 pounds an acre every year

       D．oysters should be grown far in the deep sea

2．Which of the following statements is TRUE according to the passage?

       A．Oysters have been successfully grown in Asia ,Europe and Oceania.

       B．Mr. Touraine works in a Japanese company that grows oysters on nylon strings in the sea.

       C．Few people have never eaten oysters.

       D．Oyster farming has solved the food problem.

3．It can be inferred from the passage that      .

       A．fifteen years ago the waters of Cape Cod stopped oyster supplies

       B．modern growing techniques has played an important role in oyster farming

       C．polluted water does on harm to the growth of oysters

       D．oysters grow faster at the bottom of the sea

4．What would be the best title for the passage?

       A．Oyster Supply                                     B．New Food on Strings

       C．New Hope for Food                             D．Modern Growing Technique

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