When the earth was born there was no ocean. The gradually cooling earth was

游客2023-07-09 72

问题 When the earth was born there was no ocean. The gradually cooling earth was enveloped in heavy layers of cloud, which【S1】_____much of the water of new planet. For a long time its surface was so hot that no moisture could fall without【S2】_____being reconverted to steam. This dense, perpetually renewed cloud covering much has been so【S3】_____that no rays of sunlight could penetrate it. And so the rough【S4】_____of the continents and the empty ocean basins(盆地)were sculptured out of the surface of the earth in【S5】_____. As soon as the earth’s crust cooled enough, the rains begin to fall. They fell【S6】_____day and night, days passing into months, into years, into centuries. They【S7】_____into the waiting ocean basins, or, falling upon the continental masses, drained away to become sea.
That primeval(原始的)ocean must have been only faintly【S8】_____But from the moment the rains began to fall, the lands began to be【S9】_____away and carried to the sea. It is an endless, inexorable(不可阻挡的) 【S10】_____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(极长的时期)of time, the sea has grown ever more bitter with the salt of the continents.
A)thick F)procedure K)process
B)darkness G)outlines L)successively
C)composed H)contained M)worn
D)continuously I)salty N)poured
E)brightness J)immediately O)abundant [br] 【S4】

选项

答案 G

解析名词辨析题。空格处前面是一个形容词，因此空格处需要填入名词，而且是可数名词的复数形式。此处意为“大陆和空的海洋盆地的大致——出现在地球表面”。在提供的所有选项中，只有outlines“提纲；轮廓”符合题意。

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