A student named Tom was asked to see Mr. Smith at his office. Mr. Smith asked Tom, "I ask the class to draw a world map. How come you are the only one not handing in the assignment?" Tom replied, "I'm afraid, sir." Mr. Smith found it amazing and asked Tom to explain reason for being afraid. Tom said helplessly, "I'm afraid that my world map drawing will change the world." Mr. Smith was stunned.
Whale is the biggest animal in the world, but Blue Whale is the greatest whale. As we all know, a bus is about 15 tons, but some Blue Whales are more than 100 tons. A bus could be 45 feet long, but some whales are about 100 feet long. Recently, the number of whales on the world is decreasing signally. We have the Protect them as one of our duties, for a better world.74词