基本信息
文件名称:2017-2018学年高中英语人教版选修6Unit4SectionⅠWarmingUpamp;ReadingPre-reading.doc
文件大小:146 KB
总页数:13 页
更新时间:2025-07-17
总字数:约2.19万字
文档摘要

Thegreenhouseeffectistheriseintemperaturethatthe

Earthexperiencesbecausecertaingasesintheatmosphere?大气;

大气层?trapenergyfromthesun.Withoutthesegases,heat

wouldescapebackintospaceandEarthsaveragetemperature

wouldbeabout60°Fcolder.Becauseofhowtheywarmourw