詞彙精選：disastrous的用法和辨析
一、詳細釋義：
adj.
災難性的，損失慘重的；悲慘的
例句：
Destruction of habitats, disastrous environmental and climatic changes can reduce an animal population.
生存地的破壞，環境和氣候災難性的變化會造成某種動物的減少。
例句：
When money is in short supply many businesses fail.
該公司的財政事務處於一種災難性的狀況，隨時可能破產。
二、詞義辨析：
unhappy,unfortunate,unlucky,disastrous
這些形容詞均有“不幸的”之意。unhappy多用於表示心理狀態，指由於不滿意或遇到一般性倒黴事而感到不愉快。unfortunate語氣較強，多指因命運不佳，意外不幸或事業失敗、生活處於困境等而感到不幸。unlucky指因缺少或一時無機遇，雖作了努力，但事不從心，感到失意。disastrous着重不可避免和後果嚴重。
三、參考例句：
Divorce often has disastrous consequences.
離婚往往具有災難性的後果。【CET-4 2008.06 閱讀】
Otherwise, you will usher in disastrous consequences.
否則, 你將會迎來不堪設想的後果。
Her investment had disastrous consequences: she lost everything she owned.
她的投資結果很慘，血本無歸。
His intemperate ambition will bring him disastrous failure.
他過度的野心會給他帶來災難性的失敗。
The new system has had a disastrous effect on productivity.
新制度已對生產力造成了災難性的影響。
The new system had a disastrous effect on productivity.
這項新制度對生產力造成了很壞的影響。
Her investment had disastrous consequences, she lost everything she owned.
她的投資結果很慘，血本無歸。
Environmental pollution can trigger a lot of disastrous results.
環境污染可以導致許多災難性後果。
This had been a disastrous week for the prime minister.
這對於首相來說是災難性的一週。
The effect on coffee prices has been disastrous for the producers.
對咖啡價格的影響對生產商而言是災難性的。
