初中英语早读阅读理解训练 Hidden Depths 课件（共15张PPT）+课文原文+课文录音

Hidden Depths Oceans have always seemed mysterious. In the past, some people believed that dragons and some monsters lived deep in the oceans. Other people imagined underwater cities. Today, most of the world’s oceans are still a mystery. “The oceans cover 71 percent of our planet,” says Dr. Robert Ballard. “Yet only 5 percent of it has been explored.” In fact, we know more about some areas of Mars than about some parts of the world’s oceans. Mountains in the sea New technology, however, is helping scientists explore these hidden worlds. For example, scientists are using an underwater vehicle called DeepSea to explore seamounts — underwater mountains. Scientists have used DeepSea to study Las Gemelas, an area of seamounts near Costa Rica. Many different kinds of species live on and around Las Gemelas. Some of these species have never been seen before, and some may help people fight disease. $$ 目 录 CONTENTS 1 2 Pre-reading While reading Reading tasks Language points Exercises 3 After reading * Are you interested in the ocean? What do you know about it?    Hidden Depths Oceans have always seemed mysterious. In the past, some people believed that dragons and some monsters lived deep in the oceans. Other people imagined underwater cities. Today, most of the world’s oceans are still a mystery. “The oceans cover 71 percent of our planet,” says Dr. Robert Ballard. “Yet only 5 percent of it has been explored.” In fact, we know more about some areas of Mars than about some parts of the world’s oceans. Mountains in the sea New technology, however, is helping scientists explore these hidden worlds. For example, scientists are using an underwater vehicle called DeepSea to explore seamounts — underwater mountains. Scientists have used DeepSea to study Las Gemelas, an area of seamounts near Costa Rica. Many different kinds of species live on and around Las Gemelas. Some of these species have never been seen before, and some may help people fight dis