[A]covering[I]little [B]clear[J]fog [C]slowly[K]immediately [D]walking[L]named [E]trucks[M]outskirts [F]surr

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问题     [A]covering[I]little
    [B]clear[J]fog
    [C]slowly[K]immediately
    [D]walking[L]named
    [E]trucks[M]outskirts
    [F]surroundings[N]shelter
    [G]rainbow[O]thick
    [H]backpacks
    We are high in the Blue Ridge Mountains in the state of North Carolina. It is very early in the morning. We have been【C1】______in the mountains for almost one week. Each night we sleep in a small cloth【C2】______called a tent. We carry the tent, sleeping bags, clothes, food and water with us in our【C3】______.
    The air this morning is fresh and clear. It smells like green trees and wild flowers. Our【C4】______are dark green. We have been deep in the forest for many kilometers.【C5】______light reaches here. It is so【C6】______with trees we cannot see the sky.
    At last we come to a【C7】______area. We can see the sky and the land around us. When we look across to other mountains it is easy to see why they were【C8】______the "Blue Ridge Mountains". The early morning air in the distance looks like thick smoke. It makes the color of the mountains a deep ocean blue. This color is caused by the amount of water in the air. It is almost like【C9】______. When the sun rises higher, some of the water in the air will be burned away. Then the mountains will【C10】______turn dark green. It is beautiful here. We can see many kilometers down and across the valley floor.
【C4】

选项

答案F

解析 根据句子结构可知,此处应填入名词。前面提到了空气清新,充满绿树和野花,本句又提到darkgreen(墨绿色),由此可知,这里描述的是周围环境,所以选[F]surroundings。
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