False Fear of BigFish

Many people believesharks（鳖鱼）are dangerousand will always try to hurt or even kill humane.

_________(46)A sharkexhibition at the National Aquarium（水族馆）in Baltimore,Us,proves this. Visi-

'tors can touchyoung sharks, see their eggs develop and watch a dozen different species swimsmoothly around

a huge tank.

Most people fail torealize that shark attacks don't happen very often.Humans are more likely to be

killed by lightningthan by a shark．_____________（47)There,kids can learn,from an early age,not to fear

sharks.

"People fearwhat they don't know,"said Nancy Hotchkiss,an organizer of theexhibition."Sharks

have been around for400 million years and they play an important role in the ocean's food chain.Wewant

people to discoverthat sharks are amazing animals that need our respect and protection．

___________(48)Astudy,published in January in the US magazine,Science;found thatalmost all recor-

ded shark specieshave fallen b夕half in thepast S to 15 years.Thousands of sharks are hunted in Asia for

special foods, suchas shark fin（鱼翅）soup. Andmany others get caught in nets , while fishermen are huntina

other fish.__________(49)"Some fishing methods are actually cleaning out the oceanfor sharks,',said

Dave Schofield,themanager of the aquarium's ocean health programme._______________(50)_________（50）

A.They can watchthem develop inside their eggs and feel the skin of the older swimmers.

B.A shocking 100million shark, are killed every year around the world by humans.

C.In fact,94 percentof the world's 400 species are harmless to humans.

D.It is a worryingsituation and some areas have put mca、urco in place to protect these special fish.

E.And to make thispoint clear,the mu。cum hasset up a special touching pool for children.