영어1능률(김)Lesson3-3분석(기출+)

기출문제단위로 편집했어요!!!

Now imagine what would happen if we made the effort to save tigers. Tigers are considered an "umbrella species." This is an ecological term referring to species that live in a large area containing a variety of different ecosystems. If we choose to protect these species, we must conserve their habitat. As a result, the other species that share this habitat, including trees and insects, are protected too, as if there were a large umbrella being held over them. 《Small Efforts with Big Results》 Now, it is obvious that we must protect tigers. You may, however, still wonder how switching off the lights helps. Well, the lights in our homes require electricity, and more than half of the world's electricity is created by burning fossil fuels. When fossil fuels are burned, carbon dioxide is released into the air, and this contributes to climate change. Climate change has a number of negative effects, including rising sea levels that threaten many parts of the world. One of these places, called the Sundarbans, is an area on the coast of Bangladesh inhabited by a large number of tigers. If Earth's oceans continue to rise, this area could be wiped out and its tiger population could be reduced by as much as 96%. By conserving energy, however, we can slow climate change, and this will slow the rise of the oceans. So keep switching off the lights whenever you're the last person to leave a room!