用作定语
▲～+n.
His holiday has had a beneficial effect.假期对他大有好处。
用作表语
▲S+be+～
I hope your holiday will be beneficial.我希望你的假期会对你有益。
▲S+be+～+prep.-phrase
All these factors proved to be beneficial for the opposition.所有这些因素都对反对派有利。
It is beneficial for the speedy movement of passengers and cargo.这有利于快速客货运输。
It is beneficial to the society and the people.这有益于社会，有益于人民。
Daily exercise is beneficial to your health.每天锻炼有益于你的健康。
The fall in prices will be beneficial to small businesses.价格的下跌将有利于小企业。
▲S+be+～+to-v
It would be beneficial to keep abreast of developments in Asia.随时了解亚洲的发展是有益的。
用作宾语补足语
▲S+V+O+～
I found this treatment very beneficial to my health.我发现这种疗法对我的健康很有益。
