记忆方法
aster，词根表示“星星”
古代的时候都会观天象而知大事→星位不正→灾难
n.灾难
双解例句
小知识
An earthquake, an oil spill, an economic collapse, a party with inedible food and truly awful music: Each of these could be described as a disaster, a cataclysmic event causing extreme suffering, even total destruction.
Disaster made its way into the English language from Greek. The second part of the word is derived from astron — “star” or “planet,” familiar from words like astronomy and astronaut. Dis- is prefix with a meaning similar to “un-” or “mis-,” but with clearly negative connotations. Translated literally, disaster means “bad or unlucky star,” and it's a relic of a time when astrology was considered a serious science that could predict events — including disasters you might try to avoid — in your life on Earth!
实用短语
常用短语
单词用法
disaster：普通用词，指大破坏、痛苦或伤亡。
calamity：多指个人的不幸，比disaster严重，强调灾难引起的悲痛以及对于损失的感觉。
catastrophe：语气最强，指可怕的灾难，强调最终的结局。
misfortune：普通用词，多批较为严重的不幸，强调不幸多由外界因素所致。
disaster relief赈灾；灾难援助
disaster prevention防灾
disaster area灾区
词根词缀
词根: aster
=star,表示”星星”
adj.
asteroid 星状的aster星星+oid像……的→像星星的
astral 星的,星状的astr=aster星星+al……的→adj.星的,星状的
disastrous 灾难的disaster[n.灾难,灾祸]+ous……的→disastrous灾难的
n.
asterisk 星号,星标aster星星+isk小东西→小星星
asterism 星群, 三星符号aster星星+ism现象→一群星→星群
asteroid 小行星aster星星+oid像……的→像星星的
disaster 灾难,灾祸dis不,坏+aster星→星位不正,表示有灾难
v.
asterisk 给……注上星号aster星星+isk小东西→小星星
同义词辨析
这些名词均表示”灾难”或”不幸”之意。
- disaster： 普通用词，指大破坏、痛苦或伤亡。
- calamity： 多指个人的不幸，比disaster严重，强调灾难引起的悲痛以及对于损失的感觉。
- catastrophe： 语气最强，指可怕的灾难，强调最终的结局。
- misfortune： 普通用词，多批较为严重的不幸，强调不幸多由外界因素所致。
同义词
misfortune / accident / casualty / catastrophe / calamity / mishap / tragedy
accident / misfortune / casualty / misadventure / mishap / catastrophe / calamity / grief / tragedy / adversity