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　　Passage Two

　　Thousands of years ago, in the middle of an ocean, miles from the nearest island, an undersea volcano(火山) broke out. The hot liquid rock 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.

　　36.The passage centers on .

　　A.how an undersea volcano broke out

　　B.how an island rose up in the sea

　　C.how soil was formed on a new island

　　D.how life began on a volcano-produced island

　　37.According to the passage, the island got its first soil from .

　　A.sea waves

　　B.the sand brought by the wind

　　C.its own rock

　　D.cool rains

　　38.The word “naked” (in Para.3) could best be replaced by .

　　A.hidden B.new C.mysterious D.bare

　　39.The order of coming into being on the island is .

　　A.soil, plants and animals

　　B.soil, little creatures and plants

　　C.soil, birds and plants

　　D.soil, human beings and animals

　　40.According to the passage, which of the following is true?

　　A.Spiders were the first life that could live on the island.

　　B.The island is far away from any piece of land.

　　C.Insects could not live on the island without plants.

　　D.Plants were brought to the island by human beings.