【正确答案】正确答案： Island An island is a body of land surrounded by water. / Continents are also surrounded by water, / but because they are so big, they are not considered islands. / There are countless islands in the ocean, lakes, and rivers around the world. / They vary greatly in size, climate, and the kinds of organisms that inhabit them. / Some islands are cold and ice-covered all year. / Others lie in warm, tropical waters. / Many islands are little more than barren rock with few plants or animals on them. / Others are among the most crowded places on Earth. /