审题指南针:地球,人类的母亲,生命的摇篮。她有着蔚蓝无垠的海洋、郁郁葱葱的森林、碧草如丝的原野,她还有着清新的空气、滋润的雨水、温柔的清风……是那样壮观,那样可亲。但是,人类却是不孝顺的孩子,肆无忌惮地对待自己的母亲。他们砍伐树木,无节制地掠夺有限的矿产资源,让清澈见底的河流变得污浊,鱼虾因此绝迹,让清新 Scrutiny compass: the earth, the mother of humanity, the cradle of life. She has a vast expanse of ocean, lush forests, grassy fields, she also has fresh air, moist rain, gentle breeze ... is so spectacular, so amiable. However, human beings are filial children and unscrupulously treat their own mothers. They cut trees, uncontrolled plunder the limited mineral resources, so that crystal clear rivers become dirty, fish and therefore extinct, so fresh