地球上的蓝天、白云多么美丽,江河湖海多么辽阔,花草森林多么青翠。天上飞的,地上跑的,水里游的,真是一派生机勃勃的大自然景象。人类登上地球的大舞台后,创造了灿烂的科学文化,而在科技飞跃的同时,自然却受到了污染,环境遭到了破坏,一些珍禽异兽灭绝了,大地在叹息,地球在哭泣,我们可爱的家在危难中,它在向人类发出援救的信号。 How beautiful is the blue sky and white clouds on the earth, how vast rivers and lakes are, and how beautiful the forests and flowers are. Fly in the sky, run on the ground, swim in the water, is really a vibrant natural beauty. After humans boarded the earth's big arena, they created a splendid science and culture. At the same time as science and technology leap, nature was polluted, the environment was destroyed, some rare and exotic animals were extinct, the earth was sighing and the earth wept, and we Lovely home in distress, it's sending a signal of rescue to humans.