So far only humans use the Internet.But now some sharks in the coastal regions of Western Australia began to use it.
These fish are         with mobile phones and using their fins(鳍) to type messages.People put electronic devices(电子装置) on over 330 of them.The electronic devices can           a message through the Internet, anytime they swim near the Australian beach.
The Internet             us about the appearing of the shark; it also tells us where they are.It is hoped that this information will give swimmers             time to drive away from them.
         using the devices to help save swimmers, the            are also hoping to get more information about shark behavior and movements.
Though Western Australia is the most            in the world for shark attacks(攻击), the numbers are actually quite            .In 2014, there were just 14 attacks.However, the fear of the fish is so high that it is            to provide people some comfort.
In addition, scientists are also hoping that it will           the fish because their numbers are always dropping.They will surely help stop unnecessary killing.
A.swimming        B.running             C.walking
A.come into       B.send out            C.leave for
A.says            B.tells               C.wants
A.a few           B.a little            C.enough
A.Beside          B.Besides             C.Except
A.swimmers       B.scientists          C.children
A.popular        B.serious             C.dangerous
A.short           B.big                 C.small
A.interesting     B.important           C.boring
A.kill           B.save                C.sell