Read the following paragraph and underline the topic sentences.H

Read the following paragraph and underline the topic sentences.
Hurricanes, which are also called cyclones, exert tremendous power. These violent storms are often a hundred miles in diameter, and their winds can reach velocities of seventy-five miles per hour or more. Furthermore, the strong winds and heavy rainfall that accompany them can completely destroy a small town in a couple of hours. The energy that is released by a hurricane in one day exceeds the total energy consumed by humankind throughout the world in one year.
【正确答案】：Hurricanes, which are also called cyclones, exert tremendous power.
【题目解析】：p130