自現(xiàn)象級英語
ONSET
1. 英英釋義：the?beginning of something, especially something bad?
例句：Evidence shows that speaking a second language can help delay the?onset?of dementia.?
2. 為什么選這個詞？?
“onset”是個名詞祟同，意思是“開始”，常常可以用來完美替換常見的“beginning”，是外刊中經(jīng)常出現(xiàn)的表達(dá)瓮增。onset 表示“開始”時叉跛，后面常接有負(fù)向含義的名詞，比如疾病潭枣、經(jīng)濟(jì)蕭條、戰(zhàn)爭等筋蓖。?
比如戰(zhàn)爭開始后卸耘，犯罪率激增，就可以說成：?
Since the onset of the war, the crime rate has skyrocketed.
有證據(jù)表明粘咖，會說一門外語有助于推遲老年性癡呆（dementia）蚣抗。我們就可以用 onset 造句：?
Evidence shows that speaking a second language can help delay the onset?of dementia.
最近的《經(jīng)濟(jì)學(xué)人》中也出現(xiàn)了 onset：?
The study adds substantial weight to the evidence linking cannabis to the onset of psychosis.（“the onset of psychosis”指“精神疾病的開端”，這句話是說研究表明吸食大麻很有可能導(dǎo)致患上精神疾参拖隆）
3. 怎樣學(xué)會使用這個詞翰铡？
1）翻譯下面的句子：?
經(jīng)濟(jì)危機(jī)爆發(fā)后，投資面貌發(fā)生了巨大變化讽坏。 (重點(diǎn)：爆發(fā)后 since the onset of, 投資面貌investment landscape锭魔，巨大變化 be changed tremendously )
The investment landscape has been changed tremendously since the onset of the financial crisis.
My version: In the wake of the financial crisis, the investment landscape has significantly transformed.
造句：
例1：The landscape of public health is likely to deteriorate at the onset of vector-born diseases such as malaria. 瘧疾等蟲媒病對公共健康的危害
例2：The onset of higher fuel costs is a clear indicator of growing traffic and pollution problem.改編自每周一段
例3：Evidence shows that blue economy and green economy can help delay the?onset?of global warming. 改編例句
個人拓展：
搭配：the onset of sth;
delay / mark / after/ since /at the onset
背誦：
onset, beginning
Evidence shows that speaking a second language can help delay the?onset?of dementia.?
