这个要看你要表达什么 前者用于名词前面修饰 后者相当于表语吧 he has a five-year-old son. his son is five years old.
five years old 五岁 five-year-old 五岁的 例如：He is five years old.He is a five-year-old boy. five years old例句： He was only five years old then. 当时他才五岁。 His father died when he was five years old. 他五岁上死了父亲。 ...
five years old 五岁 five-year-old 五岁的 例如：He is five years old He is a five-year-old boy
five years old 正确 five-years-old 错误，当有连字符号时，要把s去掉。而且后面还要有名词。 如：She is a five-year-old girl.
I am five years old I am five I am a five--year--old boy/girl
解答如下: (我也是今天看语法书才搞懂, 说来惭愧) five years名词词组做副词使用, 从而做old形容词的状语, 因此old词性为形容词 这个句子也可也改成这个形式: I am a five-year-old boy,five-year-old是合成形容词 其它例句: The bridge is four...
a five-year-old boy词组， 一个五岁大的男孩 the boy is five years old句子： 那个男孩子五岁。
你的是不对的 应该是a five-year-old girl 也可以说 a girl of five years old 在有连字符的短语中,名词都用单数.
一般 含有Be动词的句子变一般疑问句 把be动词提前即可 该句变为 Is he five years old?