ring是短暂性动词还是延续性动词

ring既可以是延续性动词也可以是非延续性动词。

表示能够延续的动作。如：study, work, stand, lie, know, walk, keep, have, wait, watch, sing, read, sleep, live, stay等。延续性动词可以与表示时间段的状语连用。

表示时间段的短语有：for+ 时间，for 2 years; since从句，since he came here; since+时间点名词，since last year, since 5 days ago; how long; for a long time等。

例句：

1、She wears a wedding ring to show that she's married.

她戴着结婚戒指，表示她已结婚。

2、Roger made the rope fast to the metal ring.

罗杰把绳子牢牢地拴在金属环上。

3、Adenine has a purine ring structure.

腺嘌呤具有嘌呤环的结构。

4、The children sat in a ring round the teacher.

孩子们围着老师坐成一圈。

5、In the finals of the boxing championship he knocked out his opponent, who was carried out of the ring.

在拳击锦标赛决赛中，他把对手击昏在地，后者被人抬出了拳击台。