【答案解析】[听力原文] 14-23
Great Transformation
Something big is happening to the human race — something that could be called the Great Transformation.
The Transformation consists of all the changes that are occurring in human life due to advancing technology. For thousands of years such progress occurred slowly. Now, everything is changing so fast that you may find yourself wondering where all this progress is really leading.
Nobody knows what all these changes will really mean in the long run. But this mysterious Transformation is the biggest story of all time. It is the story of the human race itself.
Some people worry about what will happen when the deposits of petroleum are gone, but already researchers are finding all kinds of new ways to obtain energy. Someday, solar power collected by satellites circling the earth or fission power manufactured by mankind may give us all the energy we need for an expanding civilization. Space exploration promises to open up many new territories for human settlement, as well as leading to the harvest of mineral resources like the asteroids.
Scientific research continues to open up previously undreamed-of possibilities. Fifty years ago, few people could even imagine things like computers, lasers, and holography. Today, a host of newly emerging technologies such as artificial intelligence and genetic engineering are opening up all kinds of new paths for technologists.
Like it or not, our advancing technology has made us masters on the earth. We not only dominate all the other animals, but we are also reshaping the world's plant life and even its soil and rocks, its waters and surrounding air. Mountains are being dug up to provide minerals and stone for buildings. The very ground under our feet is washed away as we chop down the forests, plow up the fields, and excavate foundations for our buildings.
Human junk is cluttering up not only the land but even the bottom of the sea. And so many chemicals are being released into the air by human activities that scientists worry that the entire globe may be warm, causing the polar icecaps to melt and ocean waters to flood vast areas of the land.
During the twentieth century, advancing technology has enabled man to reach thousands of feet into the ocean depth and to climb the highest mountains. Mount Himalayas, the highest mountain of all, resisted all climbers until the 1950s. Now, man is reaching beyond Earth to the moon, Mars, and the stars.
No one knows what the Great Transformation means or where it will ultimately lead. But one thing is sure: Human life 50 years from now will be very different from what it is today.