文档介绍：【英语四六级新题型练习】 英语四级阅读理解之长篇阅读(附详解)
Animals on the Move
A) It looked like a scene from “Jaws” but without the dramatic music. A huge shark
was slowly swimming through the water, its tail swinging back and forth like the
pendulum of a clock. Suddenly sensitive nerve ending in the shark‟s skin picked up
vibrations of a struggling fish. The shark was immediately transformed into a deadly,
efficient machine of death. With muscles taut, the shark knifed through the water at a
rapid speed. In a flash the shark caught its victim, a large fish, in its powerful jaws.
Then, jerking its head back and forth, the shark tore huge chunks of flesh from its
victim and swallowed them. Soon the action was over.
Moving to Survive
B) In pursuing its prey, the shark demonstrated in a dramatic way the important role
of movement, or otion, in animals. Like the shark, most animals use movement
to find food. They also use otion to escape enemies, find a mate, and explore
new territories. The methods of otion include crawling, hopping, slithering,
flying, swimming, or walking. Humans have the added advantage of using their
various inventions to move about in just about any kind of environment. Automobiles,
rockets, and submarines transport humans from deep oceans to as far away as the
moon. However, for other animals movement came about naturally through millions
of