题目
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.125、According to the passage, which of the following is TRUE? (0.4分)A Insects could not live on the island without plants.B Theislandis far away from any piece of land.C Plantswerebrought to the island by human being.D Spiderswerethe first life that could live on the island.
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.
125、According to the passage, which of the following is TRUE? (0.4分)
A Insects could not live on the island without plants.
B Theislandis far away from any piece of land.
C Plantswerebrought to the island by human being.
D Spiderswerethe first life that could live on the island.
题目解答
答案
根据文章内容,岛屿最初由海底火山喷发形成,随后岩石经日晒雨淋及海浪冲刷形成土壤。最初,岛上无生命存在,后由风和鸟类带来植物种子、蜘蛛等生物。植物需先生长,才能为昆虫提供食物,而昆虫又为蜘蛛等捕食者提供食物。因此,植物是岛上最早的生命形式。
逐项分析:
A. 昆虫需要植物作为食物来源,文中明确指出“insects couldn't stay until there were plants for them to eat”,故A项正确。
B. 文章提到岛屿“miles from the nearest island”,但未说明远离任何陆地,故B项不完全正确。
C. 植物种子由风和鸟类带来,而非人为引入,故C项错误。
D. 蜘蛛并非最早生命,植物才是,故D项错误。
综上,正确答案是A。
答案:A. Insects could not live on the island without plants.