1.avert的基本意思是“防止,避免”,一般指立即采取有效的措施使灾难、危机等令人不快的事免于发生; 引申可表示“转移(目光、注意力等)”,常接介词from,是正式用词。
2.avert的过去分词averted可用作形容词,意思是“可以防止的”。

用作及物动词
 ▲S+～+n./pron.
She averted her eyes from the picture.她转移目光不再看那幅画。
She averted her eyes from the wounded soldier.她将目光避开那个伤兵。
She averted her eyes from the terrible scene in front of her.她背过脸,不敢去看眼前那可怕的场面。
He averted his eyes from the scene of the accident.他将目光避开事故的现场。
We should avert failure by hard work.我们应该努力工作以避免失败。
He managed to avert suspicion.他设法避嫌。
He did his best to avert suspicion.他尽量避嫌。
◇ 用于be ～ed结构
Accidents can be averted by careful driving.谨慎驾驶可以防止事故。
Many traffic accidents can be averted by courtesy.礼让可以使许多交通事故得以避免。
Violence may have been averted with a greater police presence.如果出动了更多的警力,暴力行为原本可以避免。