学习了《只有一个地球》这一课,我深受震撼。课文从宇航员在太空遥望地球所看到的景象写起,开始了对地球的介绍;接着从地球在宇宙中的渺小、地球所拥有的自然资源有限而又被不加节制地开采或随意毁坏等方面,说明地球面临资源枯竭的威胁;然后用科学家研究的成果证明,当地球资源枯竭时,人类目前无法移居到第二个适合生存的星球上;最后告诉读者:人类应该精心保护地球,保护地球的生态环境。真是不读不知道,一读吓一跳,如今的地球已遭到人类严重破坏。滥用化学物品, I was deeply shocked to learn the Lesson One Lesson. The text begins with an introduction to the Earth as seen by astronauts looking at Earth in space; then, from the earth’s insignificance in the universe, Earth has limited and uncontrolled exploitation of natural resources or casual destruction And other aspects of the Earth is facing the threat of resource depletion; and then use the results of scientists to prove that when the depletion of the Earth’s resources, humans can not currently move to the second planet to survive on the planet Finally, tell the reader: human beings should carefully protect the Earth and protect The ecological environment of the earth. Really do not read do not know, read first reading, today’s planet has been severely damaged by human beings. Abuse of chemicals,