托福核心词汇速记是把托福词汇中的570个重点词汇进行逐个解析，并给出词源解析，进而帮助考生进行联想记忆以达到速记单词的方法。前程百利为大家搜集整理托福词汇速记570个词，并且10个分为一组，便于逐条记忆。以下就是221-230的内容，希望对大家的备考有所帮助。
托福核心词汇速记：(221-230)
generation 一代 n. Production
【词源解析】以上 3 个单词都来自 gen-，表示“出生，产生”
【同源扩展】
regenerate v 再生，重生(re 再+generate)
generous a 慷慨的;丰富的(gener+ous→[不断]产生→丰富的，慷慨的)
genetic a 基因的，遗传学的(gen+etic→来自 gene 基因)
genus n 种类，类属(gen+us→生出来就出现不同→种类)
globe 地球仪 n. small spherical model of the earth showing the continents and usu also
countries, rivers, cities, etc
goal 目标 n. (in football, hockey, etc) pair of posts with a crossbar, between which the
ball has to be kicked, hit, etc in order to score
grade 成绩，年级 n. step, stage or degree of rank, quality, etc; level of classification
gradual a 逐步的(grad+ual)
degrade v 降级;退化(de 向下+grade→向下降级)
upgrade v 上升，升级(up 向上+grade→向上升级)
grant 同意，允许 v. agree to give or allow (what is asked for)
guarantee 担保 n. Promise
guideline 指导方针 a principle put forward to set standards or determine a course of actio
hierarchy 等级制度 n. system with grades of authority or status from the lowest to the
highest
highlight 最重要的部分 n. best, most interesting or most exciting part of something
hypothesis 假设 n. idea or suggestion that is based on known facts
【词源解析】thesis= setting ，表示“放置”，hypo 下面+thesis→放在下面，还不能作为正式理论→假说
thesis n 论文;命题(放好的研究主题)
antithesis n 对立(anti 反+thesis→反着放→对立)
hypothesis n 假说;前提
以上就是托福核心词汇(23)的内容，希望能够帮助大家备考。前程百利祝大家都能取得理想的托福考试成绩。
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