我们都知道英语单词是由词素构成，而词素又由词根+词缀（前缀和后缀）组成，所以市面上很多单词书都是直接讲解词根词缀，虽然肯定正确，但不乏像我这种翻了一两页词根词缀书就觉得枯燥乏味完全无法集中精神的人。 对于这种既不想背传统单词书又想提高词汇量的同学来说，塔塔就非常推荐这本韦氏词根字典。这本字典最大的不同就是它将词汇的讲解和国外的历史文化知识相结合，整个过程就如同讲故事般让人忍不住继续学习。 这本字典不仅可以帮你提高词汇量，更大的好处在于可以帮助你学会分析单词的词根来辨析单词以此达到扩大词汇量的目的。 全书共30个units，每个unit 8个词根，每个词根下四个单词，加上每个unit最后8个words from mythology and history，共40个单词，也就是看完全书，你可以学完1200个单词。 每个单元开始前会给出这个单元需要学习的词根，比如第一单元讲解的词根为BENE、AM、BELL、PAC、CRIM、PROB、GRAV、LEV和Words from Mythology and History
比如第一个词根BENE，它的词根讲解是 BENE is Latin for “well.” A benefit is a good result or effect. Something beneficial produces good results or effects. The Latin root can be heard in other languages as well: “Good!” or “Fine!”in Spanishis “Bueno!”; in French, it's “Bon!”; and in Italian, just say“Bene 其中一个单词讲解是benefactor ：Someone who helps another person or group，especially by giving money. · An anonymous benefactor had given $15 million to establish an ecological institute at the university A benefactor may be involved in almost any field. One may endow a scholarship fund; another may give money to expand a library; still another may leave a generous sum to a hospital in her will. The famous benefactions of John D. Rockefeller included the gifts that established the University of Chicago, the Rockefeller Foundation, and Rockefeller University. Many benefactors have reported that giving away their money turned out to be the most rewarding thing they ever did. 如果想查询这个单词更具体的信息可以登录韦氏在线词典网站——Merriam-Webster，Senice 1828. 比如你想知道benefactor的近义词反义词等等，这个网站可以给你更全面的内容。
