A．Whale sharks usually live a life of 70 years on average.

　　B．Whale sharks can reach as long as 41.5 feet.

　　C．Whale sharks depend on their teeth to harvest their food.

　　D．Whale sharks live in the deep waters of the warmer oceans.

　　C　[细节理解题。根据第三段中的"Their teeth play no role..."可知C项错误。A、B、D三项分别在文中第二段、第一段第二句、第三段最后一句有提及。]

　　2．Which of the following do whale sharks feed on?

　　A．Humans.　　　　 B．Plankton.

　　C．Small fish. D．Water plants.

　　B　[细节理解题。根据第三段中的"Their teeth play no role in eating，as plankton..."和第四段中的"Several times a year they..."可知，鲸鲨主要吃浮游生物。]

　　3．What's the best title for the passage?

　　A．Laws to Protect Whale Sharks

　　B．The Situation of Whale Sharks

　　C．The Biggest Creature in the World

　　D．The Benefit That Whale Sharks Bring

　　B　[标题归纳题。本文讲述的是鲸鲨目前的处境，故正确答案为B项。]

　　Ⅱ.完形填空

　　John Perry stood up and looked around again. The island had been a good place to find shells. But now how could he make the 1 move out to sea? If they swam out to sea he could jump in and get to shore 2 they saw him.

　　He saw the sharks rolling and playing. Their 3 was now gone and they were killing for fun. How could he make them move away?

　　He drew his knife from his belt. Sharks can 4 blood，he thought. He put the knife against his leg and cut deep into the 5 . The blood ran out and he caught it on his white shirt. When the shirt was red and wet he tied some cloth around his leg to 6 the flow of blood. He then tied a long piece of cloth to the shirt, threw it into the water and 7 it with the piece of cloth.

The sharks smelled the blood and came 8 towards the shirt. He ran down the