反复做某事的英文

['ri:fʌnd] 是一重音: Sold是sell的过去式~~ Sold out 售完(货);全部出售 sold(原形sell)只是普通的卖而已keep doing / keep on doing 1) 均可表示“继续做某事，反复做某事”， 可互换，只是 keep on 更加强调时间的间隔性和动作的反复性，及某人做某事的决心。  He kept on working until midnight though he was tied. The boy kept /kept on asking some silly questions in class. 2) 若表示一连续不段的动作，或某一动作的持续状态，只宜用keep doing . She kept waving to her husband until he was out of sight. They kept standing outside the room during all the meeting. Keep lying here; I will be back soon. 3) 若表示今后或将来继续做某事，则只宜用keep on doing 。 We must keep on working hard in the coming new year. He kept on smoking though we advised him to stop to smoke.

分析：keep原词义保持；经营；遵守；饲养。keep的过去式和过去分词都是kept.

She keep on raising her hand 她反复举手（不是一直举着手）

2.keep doing sth 一直持续做某事

She keep running 她一直在跑（没停过）

keep其他词义用法：

1.整理,料理Mother keeps the house.母亲料理家务.2.履行;遵守;保守Everyone must keep the law.每个人都必须守法.3.阻止,妨碍;控制住[(+from)]Robbie couldn't keep the child from yelling.

拓展内容：关于动词加to do和doing的区别

remember to do记得要做某事但还没做

remember to buy a magazine记得回来之后或者以后要买本杂志

remember doing是记得自己做过某事,是已经做了的事情,这是有一定区别的

remember buying a magazine记得已经买过杂志了

keep doing sth 和keep on doing sth的区别为：

一、指代不同

1、keep doing sth：保持做某事。

2、keep on doing sth：继续做...

二、侧重点不同

1、keep doing sth：强调状语的继续，常与表示延续动作的动词与静止状态的动词连用。

2、keep on doing sth：表示动作反复，强调动作与动作之间有间隔，常与表示短暂动作的动词连用。

三、引证用法不同

1、keep doing sth：keep的基本意思是“保留，保管，保存，留下，保持”，指使某人或某物继续保持某种状态。引申可作“管理，经营”“料理，照顾”“抚养，养活，饲养”“遵守，维护”“庆祝”“耽搁”“记”等解。

2、keep on doing sth：keep可用作及物动词，也可用作不及物动词。用作及物动词时，接名词或代词作宾语(不可接动词不定式作宾语)，也可接双宾语，其间接宾语可转化为介词for的宾语。

somebody do sth usually；somebody is used to doing sth