1、一个半小时有两种说法：一个是one hour and a half, （注意）这种情况hour是不用s的。另一个就是one and a half hours。
2、英语中大于一的情况下就要加s, 所以 one and a half hours 这个hour也应该加上复数形式。
拓展资料
hours
1、They waited for about two hours
他们等了约两小时。
2、Getting there would take hours.
去那里要花很长时间。
3、The gathering storm had made the day even darker than was usual at this hour.
即将到来的暴风雨使得天空看起来比平时这个时候更昏暗。
4、He recalled her devotion to her husband during his hour of need.
他回忆起她在丈夫困难之时的忠贞奉献。
5、Phone us on this number during office hours.
上班时间打这个电话给我们。
6、I worked quite irregular hours
我的工作时间相当不固定。
7、Daly kept this school open after hours so it doubled as a community center.
戴利在学生放学后继续开放学校，把它兼作社区中心。
8、She didn't want her fourteen-year-old daughter coming home at all hours of the morning.
她不希望自己14岁的女儿凌晨才回家。
9、Gibbs was arrested in the early hours of yesterday morning.
吉布斯于昨天凌晨被捕。
10、He and my mom were arguing every night, hour after hour.
他和我妈妈每天晚上都吵个不停。
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