小男孩儿沮丧地走在破旧的人行道上。他的背包很重,脚步缓慢。他沿街走着.不时停下脚步步,踢一脚路上的空罐或者纸团。推门走进家时,他的心情如同身上的背包一样沉重。妈妈在厨房里,正忙着将巧克力饼从烤箱中取出。听到儿子的声音,她微笑着转过身,但一见到儿子的表情,她的笑容一下子凝住了。“泰勒,怎么了?你没事儿吧?”“就是有事儿,妈,从今以后什么也好不了了。”他站在厨房中央说道。他妈走到餐桌前,“泰勒,你今天好像过得不顺利。我能帮助你吗?”“妈,谁也没有办法,谁也没有任何办法。”他在餐桌前坐下,双手抱住头。妈妈也坐了下来,默不作声,直到泰勒又一次开口。“今天的科学课上,老师谈到地球日和环境。在地球日这一天,每个人都应当承诺 The little boy walked frustratedly on the old sidewalk. His backpack is heavy and his pace is slow. He walked down the street. Stopped from time to time and kicked a can of empty cans or paper balls. When he pushed the door into the house, he was as heavy as a backpack. Mom is busy eating chocolate cake out of the oven in the kitchen. Hearing her son’s voice, she turned away with a smile, but as soon as she saw her son’s expression, her smile suddenly froze. ”Taylor, what’s up? You’re okay?“ ”“There’s something, Mom, nothing can be done from now on.” He said standing in the middle of the kitchen. His mother walked over to the table. “Tyler, you don’t seem to be going well today. Can I help you?” “Mother, there is no way. No one can do anything.” He sat down at the table. Hold your head in your hands. The mother sat down, silently, until Taylor spoke again. "In today’s science class, teachers talk about Earth Day and the environment. On Earth Day, everyone should promise