Some years ago on a hot summer day in south Florida a little boy decided to go for a swim in the old swimming lake behind his house.
In a hurry to dive into the cool water，he ran out the back door，leaving behind his shoes，socks，and shirt as he went.He flew into the water，not realizing that as he swam toward the middle of the lake，an alligator (鳄鱼) was swimming toward the shore.
