Snow fell on the mountain.It snowed and snowed.The snow did not melt(融化).It became deep and heavy.Thhe snow on the bottom pressed together.It became ice.
The ice was very wide and thick.It brgan to move down the mountain.It was like a river of ice.It was a glacier(冰河).
Sometimes the glacier moved only a few inches(英寸)each day.As it moved,it look rocks and dirt(尘土)with it.It changed the land.In some places,it left hills.In some places when the glacier melted,it made rivers and lakes.
A million years ago,there were many big glaciers.Glaciers covered many parts of the world.The glaciers changed the land.
Glaciers are still at work today.A glacier in the north of Canada is cutting a new path(小路)down the side of a mountain.This glacier will change the land,too.

文中提到的冰河，个人认为冰川更能让人接受。


Snow fell on the mountain.It snowed and snowed.The snow did not melt(融化).It became deep and heavy.Thhe snow on the bottom pressed together.It became ice.
雪花落在山上。一次次地下。雪并没有融化。越来越厚越来越重。雪层底部挤压堆积，就化成了冰。
The ice was very wide and thick.It brgan to move down the mountain.It was like a river of ice.It was a glacier(冰河).
冰层既宽又厚。开始向山下移动，就像冰块组成的河流一样。这就是所说的冰河。
Sometimes the glacier moved only a few inches(英寸)each day.As it moved,it look rocks and dirt(尘土)with it.It changed the land.In some places,it left hills.In some places when the glacier melted,it made rivers and lakes.
有时冰河一天只能滑动几英寸。 滑动的时候，冰河带着泥土。冰河改变了地形地貌。在一些地方，冰河造成山丘，在另一些地方，当冰河溶化。形成河流湖泊。
A million years ago,there were many big glaciers.Glaciers covered many parts of the world.The glaciers changed the land.
一百万年以前，世界上有很多的大型冰河。地球很大的部分被冰河所覆盖。冰河改造着地球形态。
Glaciers are still at work today.A glacier in the north of Canada is cutting a new path(小路)down the side of a mountain.This glacier will change the land,too.
冰河在今天依然在运作。加拿大北部的冰河正在山麓的一面形成一条新的小路。这块冰河也会改变当地的地形。