GUIDED WRITING.doc

GUIDED WRITING人类能否在月球上生存？——解决问题类作文的写作指导文体介绍 解决问题类作文的写作首先是提出问题，然后确定问题产生的原因、想出解决问题的办法在分析问题的过程中要多方论证，支持你的结论注意要语言客观，逻辑严谨，过渡自然问题分析 人类能否在月球上生存需考虑以下因素： 1. 地球上人类生存的条件：1）有适合人类生存的氧气和水；2）有大气层的保护，温度适宜；3）宇宙射线和陨石较少2. 月球上的生存环境：1）没有氧气、水和大气层；2）引力是地球的1/6，紫外线过于强烈；3）昼夜温差大3. 需要解决的问题：1）发明大容量、高速度的航天器，才能实现月球移民和能源补给；2）建造人类生存环境，解决引力、氧气、水、温差等问题；3）需要大量资金，实行长期的建设4. 结论：综上所述，人类在月球上生存当前看来还做不到但月球是人类去过的唯一外星球，而且是距离地球最近的星球，所以月球是最佳的开发选择常用词汇n.oxygen （氧气）, cosmic rays （宇宙射线）, aerolite （陨石）, gravity （引力）, solar energy（太阳能）, ultraviolet radiation（紫外线辐射）, vehicle （交通工具）, expense （费用）v.maintain （保持、维持）, immigrate（移民）, expose （暴露）, endure （忍受）, influence （影响）adj.fundamental （基本的）, suitable （适宜的）, stable （稳定的）adv.steadily （平稳地）, however （然而）范文欣赏Can we live on the moon? For centuries, humans have been wondering whether we can live on the moon. Firstly, we must be aware of what is fundamental to the development of life. The earth provides necessary oxygen and water for human beings. Protected by the atmosphere, people are living in stable temperatures and rarely influenced by cosmic rays and aerolites. However, there is no oxygen, water and atmosphere on the moon. In that case, life on the moon will be exposed to strong ultraviolet radiation and endure the sharp change of temperature between day and night. And the gravity on the moon is just one sixth of that on the earth. Just image: Who can live jumping up and down rather than walking steadily on the ground? To solve these problems, first of all, we should build some space vehicle large and fast enough to make it possible to immigrate to the moon and maintain the supply from the earth. And of course, we should create some sort of living environment similar to the earth. But, the two of the projects will surely take a long time at great expense. To sum up, it seems still a dream for humans to live on the moon. However, the moon, as the nearest and first planet we step onto outside the earth, is the best choice to explore in the universe.。