下列诗句中能够反映地球形状是球体的是( )
A:随风潜入夜,润物细无声
B:欲穷千里目,更上一层楼
C:黄河之水天上来,奔流到海不复回
D:飞流直下三千尺,疑是银河落九天
He was ____ (interest) in science when he was ten years old.