时间:2018-12-19 作者:英语课 分类:英语PK台


英语课

 一个英语单词可分为三部分:前缀(prefix)词根(root)后缀(suffix)。位于词根前面的部分就是前缀。前缀,可以改变单词的意思。


 


— ir-(放在同辅音词根前)表示“不,无” —

irrational 1 = ir + rational(合理的)→ a. 不合理的

irregular = ir + regular(规则的)→ a. 不规则的

irrelevant 2 = ir + relevant(相关的)→ a. 不相关的



— kilo-表示“千”—

kilogram = kilo + gram(克)→ n. 千克(gram作为词根表示“写,画”)

kilometer = kilo + meter(米)→ n. 千米(meter作为词根表示“计量,测量”)



—milli-表示“千分之一”—

milligram = milli + gram(克)→ n. 毫克

millimeter = milli + meter(米)→ n. 毫米

millisecond = milli + second(秒)→ n. 毫秒 



—mis-表示“错误,坏”—

misfortune = mis + fortune(运气)→ n. 不幸;灾难

misunderstand = mis + understand(明白)→ v. 误解

misuse 3 = mis + use(用)→ 错误的用 → v./n. 误用;



1 irrational
adj.无理性的,失去理性的
  • After taking the drug she became completely irrational.她在吸毒后变得完全失去了理性。
  • There are also signs of irrational exuberance among some investors.在某些投资者中是存在非理性繁荣的征象的。
2 irrelevant
adj.不恰当的,无关系的,不相干的
  • That is completely irrelevant to the subject under discussion.这跟讨论的主题完全不相关。
  • A question about arithmetic is irrelevant in a music lesson.在音乐课上,一个数学的问题是风马牛不相及的。
3 misuse
n.误用,滥用;vt.误用,滥用
  • It disturbs me profoundly that you so misuse your talents.你如此滥用自己的才能,使我深感不安。
  • He was sacked for computer misuse.他因滥用计算机而被解雇了。
标签: 英语PK台
学英语单词
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