These words all mean to tell sb what you think they should do in a particular situation. 以上各词均含劝告、建议之义。

• recommend to tell sb what you think they should do in a particular situation; to say what you think the price or level of sth should be 指劝告、建议（针对方法、售价、水平等）：◆We'd recommend you to book your flight early. 我们建议你早点儿预订航班。◆a recommended price of $50 建议售价 50 美元
• advise to tell sb what you think they should do in a particular situation 指劝告、忠告、建议：◆I'd advise you not to tell him. 我劝你别告诉他。

recommend or advise? 用 recommend 还是 advise？

Advise is a stronger word than recommend and is often used when the person giving the advice is in a position of authority. * advise 语气较 recommend 强烈，通常指权威人士的忠告：◆Police are advising fans without tickets to stay away. 警察正在告诫没有票的球迷离去。◆Police are recommending fans without tickets to stay away. I advise you… can suggest that you know better than the person you are advising: this may cause offence if they are your equal or senior to you. I recommend… mainly suggests that you are trying to be helpful and is less likely to cause offence. Recommend is often used with more positive advice to tell sb about possible benefits and advise with more negative advice to warn sb about possible dangers. * I advise you 暗含提出忠告者比对方更了解情况，如果对方处于同等或更高的地位就可能引起反感。I recommend 主要含试图帮助之义，不大可能引起反感。recommend 多指正面的建议，告知某人可能得到的益处；advise 多指反面告诫，警告某人可能产生的危险：◆He advised reading the book before seeing the movie.◆I would recommend against going out on your own.

• advocate (formal) to support or recommend sth publicly 指拥护、公开支持、提倡：◆The group does not advocate the use of violence. 该团体不支持使用暴力。
• urge (formal) to recommend sth strongly 指大力推荐、竭力主张：◆The situation is dangerous and the UN is urging caution. 局势岌岌可危，联合国力主谨慎行事。

Patterns

• to recommend/advise/advocate/urge that…
• It is recommended/advised/advocated/urged that…
• to recommend/advise/urge sb to do sth
• to recommend/advise/advocate doing sth
• to strongly recommend/advise/advocate sb/sth