10.A great white shark in a California aquarium attacked two soupfin sharks(翅鯊),causing their deaths.The attack was not a natural action far food,but a kind of response when the two sharks swam too close to the great white.The great white didn't attacked other fellows,but the officials had to move other soupfin sharks to another tank(貯水池)for their safety.
These attacks had given rise to calls for the freedom of the 88-pound,5-foot-3-inch shark.The aquarium housed the shark in a huge tank.However,according to experts,the tank was not big enough for the shark.Its nose was bloody from striking the glass of the aquarium.Great white sharks in the wild had a big amount of migration,sometimes traveling 50miles a day.Because the shark was still young,there was possibility of his growing.As it grows,it can became more troubled in the limited space.
Aquarium officials said that keeping the shark in the aquarium allowed them to study their behavior that they cannot study with free great white sharks.When they studied behavioral patterns,scientists believed that they can help great white sharks in the wild.
Since the shark had been on display,the number of people who visited aquarium increased greatly.The one-year-old shark was the longest surviving great white living here.It had been at the Monterey Bay Aquarium for six months.Other great whites did not survive for longer than 16days in the aquarium.
62.A great white shark's attacking two soupfin sharks is directly because ofC.
A.the hunger of the great white shark
B.the limited space of the aquarium
C.their close touch with each other
D.the fighting between them for food
63.The underlined word"migration"in Paragraph 2 probably means"D".
A.power
B.food
C.growth
D.movement
64.If the great white shark still stays in the aquarium,it will probablyA.
A.cause more trouble
B.a(chǎn)ttack the visitors
C.stop growing up
D.hurt itself often
65.According to aquarium officials,we can learn thatD.
A.the great white shark can live longer in the aquarium
B.the great white shark will be set free back to the seal
C.the great white sharks in the wild are in great danger
D.the great white shark will have to stay in the aquarium.