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同学们,在夏天你们是不是经常在半空中看到一些 漂亮的蜻蜒?大家也都知道吧,它们都是极普通的小益 虫,可是它们的生长发育过程确实很复杂的呢！ 绿茵茵的夏天来临了,我漫步在乡间小路上。傍晚 夕阳的余辉映照下,仰望空中,整个空中都变成了蜻蜓 的世界。它们在半空自由自在的飞翔,忽上忽下,仿佛 一只只美丽的蝴蝶在翩翩起舞,看着看着我陷入了沉 思:难道这些蜻蜒一生就生活在空中吗?我的脑海中产 生了一个重重的问号。忽然,我看到路边的小河面上有
Students, do you often see some beautiful skeletons in the air in the summer? Everyone knows that they are very common beetles, but their growth and development process is indeed very complicated! The green summer came and I wandered on the country road. In the evening, as the afterglow of the setting sun shines, looking up in the air, the entire sky becomes a world. They fly freely in mid-air, fluttering up and down, as though a beautiful butterfly is dancing and watching me pondering: Can these skeletons live in the air in their lifetime? A heavy question mark. Suddenly, I saw the small riverside