學習單:

This I Thought was True
The Great Wall Of China Can Be Seen On the Moon

There is a saying: the Great Wall of China is the only man-made object that can be seen from the moon with our naked eyes. This I thought was true.While the Great Wall is an incredible piece of architecture, the statement is ultimately not true. Anyone who has been there in person knows it is less than 10 meters wide. Considering a standard highway lane is 3.7 meters wide, the Great Wall is not even wide enough for a 3-lane highway. From the space, the Great Wall will not stand out any more than a highway would, especially since the color of the Great Wall is very similar to its surrounding areas. Although we cannot see the Great Wall from space, it is still quite good evidence of what men can achieve. Did you know the Great Wall is longer than United States, tip to tip?