知识扩展
相关变形拓展
复数:extinctions→相关词:extinct(灭绝的);die out(灭绝);disappearance(消失);vanishing(消失)
易混词辨析
extinction、extinct、extinguish、disappearance、survival
1. extinction:名词 “灭绝;消亡”(如 “the extinction of dinosaurs”“prevent extinction”),侧重 “物种或事物彻底消失”;
2. extinct:形容词 “灭绝的;消亡的”(如 “extinct species”“an extinct volcano”),是 extinction 的形容词形式;
3. extinguish:动词 “熄灭;扑灭”(如 “extinguish a fire”“extinguish hope”),与 extinction 发音相近但含义无关,学生易混淆;
4. disappearance:名词 “消失;失踪”(如 “the disappearance of the child”),比 extinction 更侧重 “暂时或未知的消失”,无 “彻底灭绝” 含义;
5. survival:名词 “生存;幸存”(反义,如 “the survival of the fittest”“struggle for survival”)。
同近义词
evaporation,disappearance n.消失;消灭;废止;
重要短语
extinction ratio消光比;消减比率
extinction coefficient消光系数
mass extinction大量消亡
fire extinction灭火
精选例句
1、 Already well over 400 of the total of, 6,800 languages are close to extinction, with only a few elderly speakers left.
6800种语言中已经有超过400种濒临灭绝,只剩下少数会说老年语言的人。
来源:2018年普通高等学校招生(新课标Ⅰ卷)
2、 The mountain gorilla is on the verge of extinction.
居住在山区的大猩猩已濒临灭绝。
来源:秒词邦精选例句
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