Everybody has a home.People have homes. Animals have homes. People live in many different kinds of
houses. Animals have different kinds of homes, too.
Some animals live in holes (洞) under the ground. The woodchuck (土拨鼠) lives under the ground. His
home has two doors. If any animal comes into one door, the woodchuck goes out through the other. Some
animals live in holes in trees. Some squirrels (松鼠) build nests (窝) high in trees. Most of the birds live in
nests in trees. But hawks (鹰) build their nests high in the mountains (山).
A. holes
B. trees
C. different kinds of houses
D. mountains
A. as fast as
B. much slower than
C. not as safe as
D. faster than
Strange, but the green sea turtle (小海龟) is not that green. It"s certainly not as green as a tree. In fact,
its shell (壳) is nearly black or brown. The largest hard-shelled sea turtle is between 200 and 300 pounds
heavy and a shell is between 36 and 43 inches (英寸) long. But its head is smaller than other turtles.
Little baby green sea turtles are only two inches long. As the turtle grows up, its shell keeps mostly
black while the body turns orange or brown. Young turtles like living in the sea, especially in areas with lots
of sea grasses.
Green sea turtle, like all sea turtles, are very different from land or river turtles. All sea turtles can swim
through the water faster. Instead of feet for walking, sea turtles have flippers (鳍状肢) which are better for
swimming. The flippers aren"t much good on land, however, and walking is hard for a sea turtle because
they are usually big and heavy.
Another interesting thing about a sea turtle"s flippers is that they cannot be pulled into their shells. Land
turtles can pull their feet into their shells for protection, but a sea turtle can"t.
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