题目

When I was seven years old，my family made me an ant farm (蚂蚁窝), First，we put clean sand in a thin glass box．Then we waited for the ants to arrive．After the ants were in the glass farm，they started to make tunnels (地道)．I was amazed that each one knew well what to do．Each had its own job．On the fifth day something terrible happened．I put my face so close to the glass farm that I knocked it over．All the tunnels fell down．Although (虽然) the ants kept alive after their earthquake，one by one they began to die．I was frightened as I watched them give up building 3．圆的半径扩大3倍，它的直径就扩大6倍．×．（判断对错）