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Read the following passages carefully and then fill
in the blanks with one correct or best
answer. |
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Sharks |
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Sharks are amazing fish that have ___1___
for over 350 million years, and they were around 100
years before the dinosaurs evolved. ___2___
bony fish, sharks have no bones; their skeleton is
made of cartilage, which is a tough, fibrous
substance, not nearly as ___3___
as bone. Sharks also have no swim bladder ( like
bony fish do ). Sharks live in oceans and seas ___4___
over the world, and even in some rivers and lakes,
especially in warmer waters. Some sharks live ___5___
the surface, some live deep in the water, and others
live on or near the ___6___
floor. Pelagic sharks ( sharks living in the open
ocean ) include the Great White Shark and the
Basking Shark. Benthic Sharks, or ___7___
living at the bottom, include the Zebra Horn Shark
and the Angelshark, which usually have flattened
camouflaged bodies that let them ___8___
in the seabed. Some sharks even venture many miles
up into the fresh water of ___9___
like the Mississippi in the United States and the
Amazon in Brazil.
Some sharks live in relatively warm ___10___,
and these include Hammerheads, Bull Sharks and Tiger
Sharks. Other sharks, such as the Thresher, Mako,
Basking and Blue Shark, live in temperate water
which is neither ___11___
nor cold. Others, including the Dogfish, Greenland
and Goblin, live in cool waters. some sharks stay in
the ___12___
region their entire lives ___13___
others travel across oceans.
___14___, the
largest sharks are ___15___
in numbers around the world because they are being
hunted by people. The numbers of Great White Shark,
the Basking Shark and the Whale Shark are all
waning. |
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| Answers |
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Sharks are amazing fish that have
existed for over 350 million years, and they were
around 100 years before the dinosaurs evolved.
Unlike bony fish, sharks
have no bones; their skeleton is made of cartilage, which is a
tough, fibrous substance, not nearly as
hard as bone. Sharks also have no swim bladder (
like bony fish do ). Sharks live in oceans and seas
all over the world, and even
in some rivers and lakes, especially in warmer waters. Some
sharks live near the
surface, some live deep in the water, and others live on or near
the ocean floor. Pelagic
sharks ( sharks living in the open ocean ) include the Great
White Shark and the Basking Shark. Benthic Sharks, or
those living at the bottom,
include the Zebra Horn Shark and the Angelshark, which usually
have flattened camouflaged bodies that let them
hide in the seabed. Some
sharks even venture many miles up into the fresh water of
rivers like the Mississippi
in the United States and the Amazon in Brazil.
Some sharks live in relatively warm
waters, and these include Hammerheads, Bull Sharks
and Tiger Sharks. Other sharks, such as the Thresher, Mako,
Basking and Blue Shark, live in temperate water which is neither
hot nor cold. Others,
including the Dogfish, Greenland and Goblin, live in cool
waters. some sharks stay in the same
region their entire lives while
others travel across oceans.
Unfortunately, the
largest sharks are decreasing
in numbers around the world because they are being hunted by
people. The numbers of Great White Shark, the Basking Shark and
the Whale Shark are all waning. |
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