Language points
1. aid [U] ＆[C] help; something that gives help帮助，援助 ;助手，辅助设备 ;救护
first aid 急救 come/ go to sb’s aid 援助某人
cut off aids 终止援助 with the aid of 在… 的帮助下/借助于
in aid of sth/sb 为了帮助
a hearing aid助听器 teaching aids教具 medical aid医疗救护
vt. give help to 1.帮助，援助 2.急救
aid sb with sth 帮助某人做某事
aid sb in doing sth 帮助某人做某事
Eg. He came to my aid at once.
He was able to find the museum with the aid of a ma p.
We aided him in raising the money.
He raised money in aid of the sick.
