He is the world champion for 5 years in succession.
应该加上s。五年嘛！one year old,这里one后面跟单数，所以year不必加s了。祝同学学习进步~ 版权申明：知识和讨论来自课程：《【开学季】英语零基础直达大学六级【9月特惠班】》的学员和老师，如果
解析He is nine years old.He is a nine-year-old boy.结果一题目英语岁数后面year什么时候加s 答案He is nine years old.He is a nine-year-old boy.相关推荐1英语岁数再来看例句【例句4】，它的ten-year-old是定语。若此信息变成表语，那么连字符可以不用，year要加上s, 如【例句5】The boy sitting on the couch is ten years old. (坐在沙发上的
year ( s )加old或者数字-year-old ,前者不能作定语，例如：the girl is three years old. (这个女孩三岁了。后者为复合形容词，常用作定语，不管数字是几，名词都必须用单数形式，满意答案*平淡*14级2011-12-04"（数字）年岁；岁”情况下超过一年岁加s,e.g.ten years,eight years old,；“年”不加，e.g.last year/New Y
∪﹏∪ years,eight years old,；“。。。年”不加，e.g.last year/New Year/the lunner year/next year I am ten years old.是正确的. 数词+year,如果数词大于一，year变复数. 但是当数词+ - + year用作一个形容词时，year不能加s.
