no more与瞬时动词连用，表程度不再增加，次数不再重复，no longer与延续性动词或表示状态的词连用，表示时间上的“不再”持续，(过去曾经......，现在不......)。
no more还可表数量上" 和...... 一样不......"常和than 连用，no longer 不行。
拓展资料
no more
1、I will say no more on these matters, important though they are
虽然这些事很重要，我也不想再说什么了。
2、He's stinking rich, and with no more talent than he ever had before.
他现在已经有几个臭钱了，但仍然和以前一样没什么才能。
3、It's no more than a platitude.
无非是老生常谈。
4、I've had enough of your insolence, and I'm having no more.
我受够了你的侮辱，不能再容忍了。
5、Even if the bill were approved, it would be no more than a stopgap measure.
即使议案获得批准，它也只不过是个临时措施。
no longer
1、After about three months, I was no longer addicted to nicotine.
大约3个月后，我就不再对尼古丁上瘾了。
2、When a thing has been used, it is no longer new.
当一件东西被用过后，就不再是新的了。
3、She no longer feared that they should misunderstand her.
她不再害怕他们会误解她了。
4、They no longer had him as a friend.
他们再也不把他看成朋友了。
5、Now that Tony was no longer present, there was a distinct change in her attitude
由于托尼不在场了，她的态度有了明显的转变。