化学相关:开坑预告及目录

终于要开始写初中化学了。

以下是目录。

文章中以向右的三角形开头的行是选读内容,可以被点击并展开。


  • 化学相关:从认识开始
  • 化学相关:走进化学实验室
  • 化学相关:我们周围的空气
  • 化学相关:氧气
  • 化学相关:我们需要更深入些
  • 化学相关:水
  • 化学相关:化学方程式
  • 化学相关:碳与碳的氧化物
  • 化学相关:燃料

  • 定期查看此页面,看看有没有新条目。

    Lake桑

    每日一词:enervate(转自 韦氏词典)

    原文链接


    Merriam-Webster’s Word of the Day for December 27, 2018 is:

    enervate • \EN-er-vayt\  • verb

    1 : to reduce the mental or moral vigor of

    2 : to lessen the vitality or strength of

    Examples:

    Dehydration and prolonged exposure to the sun had enervated the shipwrecked crew, leaving them almost too weak to hail the passing vessel.

    “In contrast, there was dignity in the Joad family (of John Steinbeck’s The Grapes of Wrath). When the Dust Bowl smothered Oklahoma, the Joads were not enervated, they moved west in search of work.” — George Will, The Washington Post, 7 Dec. 2016

    Did you know?

    Enervate is a word that some people use without really knowing what it means. They seem to believe that because enervate looks a little bit like energize and invigorate it must share their meaning—but it is actually their antonym. Enervate comes from the Latin enervatus,the past participle of the verb enervare, which literally means “to remove the sinews of,” but is also used figuratively in the sense of “to weaken.” The Latin enervare was formed from the prefix e-, meaning “out of,” and nervus, meaning “sinew or nerve.” So etymologically, at least, someone who is enervated is “out of nerve.”


    Lake桑

    December 27, 2018 at 01:00PM