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  3. Thousands of years ago, in the middle of an ocean, miles from the nearest is

Thousands of years ago, in the middle of an ocean, miles from the nearest is

游客2025-03-13  33
问题     Thousands of years ago, in the middle of an ocean, miles from the nearest island, an undersea volcano broke out. The hot liquid piled higher and higher and spread wider and wider. In this way, an island rose up in the sea.
    As time went on, hot sun and cool rains made the rock split and break to pieces. Sea waves dashed against the rock. In this way, soil and sand came into being.
    Nothing lived on the naked soil. And then the wind and birds brought plant seeds, spiders and other little creatures there. Only plants could grow first. Only they, in sunlight, could produce food from the minerals of the soil, water and air. While many animals landed on the island, they could find no food. A spider spun its web in vain, because there were no insects for its web to catch. Insects couldn’t stay until there were plants for them to eat. So plants had to be the pioneer life on this new island. [br] According to the passage, the island got its first soil from______.
选项 A、sea waves
B、the sand brought by the wind
C、its own rock
D、cool rains
答案 C
解析 第二段前两句：As time went on，hot sun and cool rains made the rock split and break to pieces．Sea wanes dashed against the rock．“随着时间的推移，炎热的太阳和凉爽的雨水使(岛上的)岩石分化、破裂。海浪不断击打着岩石。”所以岛上的土壤是岩石演变而成的。
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