二者意思相同,区别就在运用的时态不同。
1、since then只可用于现在完成时中,不可用于过去完成时、过去将来完成时等时态。
例句:
①Since then, the authorities have tried to clean up the sport.
从那以后,有关当局已努力整顿体育界。
②Ever since then I've been longing to meet him face to face.
从那时起,我一直渴望和他面对面地聚会。
③Since then, the palace has often been added to, rebuilt and repaired.
从那以后,那座宫殿不断得到扩建和修缮。
2、from then on可用于过去时也可用于现在完成时或将来时中,要看语境决定。
例句:
①Morrison took the news badly and from then on his spirits noticeably sagged.
这消息对莫里森打击很大,从那以后,他明显萎靡不振。
②From then on the whole tone of the campaign began to degenerate.
从那时起,整个活动的基调开始变质了。
③From then on I always used her Christian name.
从此,我就一直对她以教名相称。
相关词组:
1、ever since 从那时起
2、long since 很久以前 ; 很久以来 ; 从前 ; 早已
3、Since continuously 一直以来的 ; 由于不断
4、time since 因为时间 ; 时间自
5、Down Since 自从向下 ; 羽绒服自
6、since than 由于比 ; 自比
7、go from 从…处出发
8、to and from 往返;来来回回
9、from out of 从…之中
10、due from 应收