初三英语变成形容词时要不要加s例1Sixteen-year-olds shouldn't be allowed to work at night.例2He is a six-year-old boy.到底什么时候要加啊?
问题描述：
初三英语变成形容词时要不要加s例1Sixteen-year-olds shouldn't be allowed to work at night.例2He is a six-year-old boy.到底什么时候要加啊?
答
这里首先你要区别six-year-old在句子里面是担当什么的,
你说的第一句里面,它是作为主语,所以是名词形式,表示6岁的那些孩子,所以可以加s
但是第二句里是作为形容词来用,修饰boy,意思是一个6岁的男孩子,所以不能加s