【问】 请解释attend，attend at，attend on与attend to之间的区别。
 【答】 attend可用作及物动词，意为“参加”(to be present at;go to)：
 1. I stopped off in London to attend a conference.
 我中途到了伦敦参加一个会议。
 2. I shall be attending the meeting(funeral，wedding，ceremony).
 我将参加会议(葬礼、婚礼、庆典)。
 attend at，意为“参与……(方面的活动)”：
 1. They regularly attended at church.
 他们定期去教堂作礼拜。
 2. He attended only one year at college.
 他只读过一年大学。
 attend on意为“侍候”
 1. She has many servants attending upon her.
 她有许多仆人侍候她。
 2. She has been attending on her sick mother for years.
 她侍候她生病的母亲已经许多年了。
 attend to意为“办理”、“注意”、“照看”、“注意听”：
 1. I have two items of business to attend to( =deal with).
 我有两笔生意要办理。
 2. Who will attend to the baby?
 谁照料这个婴儿?
 3. Is there anyone to attend to those foreign guests?
 有人来招待那些外国客人吗?
 4. You must attend carefully to these instructions.(=pay attention to)
 你必须仔细注意这些指令。
 5. If she had attended to what her mother told her，she wouldn’ t be in trouble now.
 要是她听了她母亲告诉她的话，她现在就不会遇到麻烦了。