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False Fear of Big Fish

Many people believe sharks are dangerous and will always try to hurt or even kill humans. (46) .
A shark exhibition at the National Aquarium (水族馆) in Baltimore, U.S., proves this. Visitors can touch young sharks see their eggs develop and watch a dozen different species swim smoothly around a huge tank.
Most people fail to realize that shark attacks don’t happen very often. Humans are mote likely to be killed by lightning than by a shark. (47) . There, kids Call learn, from an early age, not to fear sharks.
"People fear what they don’t know," said Nancy Hotchkiss an organizer of the exhibition. "Sharks have been around for 400 million years and play an important role in the ocean’s food chain. We want people to discover that sharks are amazing animals that need our respect and protection."
(48) . A study, published in January in the US magazine, Science, found that almost a

[填空题]
Many people believe sharks are dangerous and will always try to hurt or even kill humans. (46) .
A shark exhibition at the National Aquarium (水族馆) in Baltimore, U.S., proves this. Visitors can touch young sharks see their eggs develop and watch a dozen different species swim smoothly around a huge tank.
Most people fail to realize that shark attacks don’t happen very often. Humans are mote likely to be killed by lightning than by a shark. (47) . There, kids Call learn, from an early age, not to fear sharks.
"People fear what they don’t know," said Nancy Hotchkiss an organizer of the exhibition. "Sharks have been around for 400 million years and play an important role in the ocean’s food chain. We want people to discover that sharks are amazing animals that need our respect and protection."
(48) . A study, published in January in the US magazine, Science, found that almost a

[填空题]
Many people believe sharks (鲨鱼)are dangerous and will always try to hurt or even kill humans. (46)
A shark exhibition at the National Aquarium (水族馆) in Baltimore, US, proves this. Visitors can touch young sharks, see their eggs develop and watch a dozen different species swim smoothly around a huge tank.
Most people fail to realize that shark attacks don’t happen very often. Humans are more likely to be killed by lightning than by a shark. (47) There, kids can learn, from an early age, not to fear sharks.
"People fear what they don’t know," said Nancy Hotchkiss, an organizer of the exhibition. "Sharks have been around for 400 million years and play an important role in the ocean’s food chain. We want people to discover that sharks are amazing animals that need our respect and protection."
(48) A study, published in January in the US magazine, Science, fo

[单项选择]Sharks
Sharks are amazing fish that have been around since long before the dinosaurs existed. They live in waters all over the world, in every ocean, and even in some rivers and lakes.
Sharks and bony fish
Unlike bony fish, sharks have no bones; their skeleton is made of cartilage (软骨), which is a tough, fibrous substance, not nearly as hard as bone. Cartilage, a strong fibrous (纤维的) substance, is softer than bone; our nose and ears are made of cartilage. Sharks also have no swim bladder (unlike bony fish).
Size
There are many different species of sharks that range in size from the size of a person’s hand to bigger than a bus. The Whale shark is the largest fish in the world; the basking shark is the second largest fish. Fully-grown sharks range in size from 7 inches long (the Spined Pygmy shark), up to 50 feet long. Most sharks are intermediate in size, and are about the same size as people, 5-7 feet long. Half of the shark species are u
A. Sucking
B. swallowing
C. grinding
D. chewing