1.It's very dangerous to walk on an ice-covered lake in spring.
春天在结冰的湖面上走是很危险的!
2.A thin layer of ice is formed over the lake.
湖面上凝结了一层薄冰?
3.The lake was skimmed with ice.
湖面上结了一层冰,
4.As the surface freezes, the ice floats because it is less dense than
water.
当湖面冻结时？冰由由于密度小于水的密度而浮在水面,
5.The children wanted the lake to freeze over so they could ice-skate.
孩子们希望湖面结冰。这样他们就可以在上面滑冰了？
6.The ice of the lake fractured under the weight of the students skating on
it.
湖面的冰在滑冰学生们的重量下裂开了,
7.Jim started to break the ice up on the frozen lake.
吉姆开始在封冻的湖面上敲冰。
8.a thrilling wind blew off the frozen lake.
刺骨的寒风吹着结了冰的湖，
9.It 'll be funny skating on that frozen lake .
在那片冻结的湖上滑冰一定会很有趣、
10.The cold weather froze the lake.
寒冷的天气使湖水结冰了,
11.The children skated round and round the frozen lake.
孩子们在结了冰的湖上滑来滑去