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001
阅读 01
Butterflies are common all over the world, but the ones in hot countries are usually bigger and
more brightly colored than those in cooler countries and there are more different kinds. Usually the
male butterflies more brightly colored than the female. The female have bigger and heavier bodies,
since they carry the eggs. The gay ( 鲜艳的 ) colors of the male help to attract ( 吸引 ) the female and the
duller colors of the female make them less likely to be caught by enemies before they have laid their
eggs.
Some butterflies have a bright pattern of colors on the upper surface of their wings, which show
when they fly, but when they rest on a tree or leaf, they close their wings. On the undersides of their
wings there are green and brown markings which look like the tree or leaf. They are then difficult to
see. The best example of this is the Dead Leaf Butterfly. When its wings are close, it looks exactly like
a dead leaf. There are even marks that look like the holes in a dead leaf. When a bird is chasing a
butterfly, and it close its wings, it seems to have disappeared completely.
Many butterflies have round marks on their wings that look like eyes. When they are resting, and
their wings are folded, these cannot be seen. When a bird sees one, and begins to attack it, the butterfly
opens its wings. The bird thinks that it sees two eyes staring at it, and it is frightened to fly away.
1. Where are the butterflies always bigger and more brightly colored?
A. In the places where it is hot.
B. In the places that are far from the sun.
C. In the south.
D. In the north.
2. Why do the female butterflies have bigger and heavier bodies?
A. They can help than to attract the male.
B. They can make them likely to be caught by enemies.
C. They carry eggs.
D. T
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