2. 外语
  3. When the earth was born there was no ocean. The gradually cooling earth was enveloped in heavy layers of cloud, which【C1】______

When the earth was born there was no ocean. The gradually cooling earth was enveloped in heavy layers of cloud, which【C1】______

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问题     When the earth was born there was no ocean. The gradually cooling earth was enveloped in heavy layers of cloud, which【C1】______ much of the water of new planet. For a long time its surface was so hot that no moisture could fall without【C2】______ being reconverted to steam. This dense, perpetually renewed cloud covering was so【C3】______ that no rays of sunlight could penetrate it. And so the rough【C4】______ of the continents and the empty ocean basins were sculptured out of the surface of the earth in【C5】______ .
    As soon as the earth’s crust cooled enough, the rains begin to fall. They fell【C6】______ , day and night, days passing into months, into years, into centuries. They【C7】______ into the waiting ocean basins, or, falling upon the continental masses, drained away to become sea.
    That primeval (远古的) ocean must have been only faintly【C8】______ . But from the moment the rains began to fall, the lands began to be【C9】______ away and carried to the sea. It is an endless, inexorable (不可动摇的)【C10】______ that has never stopped-- the dissolving of the rocks, the leaching out of their contained minerals, the carrying of the rock fragments and dissolved minerals to the ocean. And over the eons of time, the sea has grown ever more .bitter with the salt of the continents.
   A) thick               I) salty
   B) darkness            J) immediately
   C) composed            K) process
   D) continuously        L) successively
   E) brightness          M) worn
   F) procedure           N) poured
   G) outlines            O) abundant
   H) contained
【C4】
选项
答案G
解析 观察上下文会发现此空在句中作主语，且谓语动词是复数形式，故此处应填一个复数的名词。只有G．outlines是复数的，符合题意。原句的意思是：大陆和空的海洋盆地的“轮廓”在地球表面被勾勒出来。
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