因为有了连字符，这个eight-year-old就相当于一个形容词，可修饰 girl了
而she is an eight years old girl可改为She is a girl at the age of eight.
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数字与名词组成的复合形容词用‘-’连接，名词不能加S。意思是：她是一个8岁的女孩。
这句话等于 She is eight years old .
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noh_sslw_66|三级
都对。 只是用了连词符后 名词不用变复数了。 加连词后就等于把几个词变成了 一个形容词，八岁的。。
他怎么说都对啊？
第一句不对，因为eight years old 不能修饰名词
加油。意思是。
这句话等于
She
is
eight
years
old
是she
is
an
eight-year-old
girl对
数字与名词组成的复合形容词用‘-’连接
She is a girl of eight years old.本回答被提问者采纳
she is an eight years old girl对不对? 还是she is an eight-year-old...
she is an eight-year-old girl对 因为有了连字符，这个eight-year-old就相当于一个形容词，可修饰 girl了 而she is an eight years old girl可改为She is a girl at the age of eight.不懂可追问，满意请采纳
She is an ___ girl.[A.eight years oldB.eight-years-old]
答案：She is an 【eight years old】girl.翻译；她是一个八岁的女孩。解析；有连字符的话year不能加s.eight years old=eight-year-old 不懂再问，在线为你解答 【帮到你望及时采纳，你的10分满意，我们团队的无限动力】
She is an eight years old girl. 对吗?
She is an eight-year-old girl. 正确
...eight-year-old girl?she is an eight-years-old girl为什么不对呢...
数词与名词组成的复合形容词，用‘-’ 连接，名词不能加S，这是规定的，与AN 无关
她是一个8岁的女孩 用英语从句怎么翻译
She is a girl who is 8 years old.先行词是girl，应该用who，不能用that。
eight-year-old中“-”的用法
作为形容词作定语，用eight-year-old，如:She's an eight-year-old girl.去掉连字符，作表语，如：She's eight years old.
She is an ___girl A.eight-year-old B.eight years old C.eight-years...
A 试题分析：英语中两个或几个单词中间由短横线连起来可以表示一个整体的含义，其中每个单词一般都是用原形。句意：她是一个八岁的女孩。故选A。点评：在合成词中每个单词一般都是用原形形式，这是此类考试中的重点考查点，需要注意。
she is eight years old为什么不是she is eight-year-old
she is eight years old---因为eight years old只能做表语，后面不加名词。但是 ：she is an eight-year-old girl 就对了，因为eight-year-old（做定语）后面必须加个名词，这里是可数名词单数。
她是一个八岁的女孩 怎么翻译
回答：She was an eight-year-old girl
She is ___eight-year-old girl.
【答案】：A 句意：她是一个八岁大的女孩。考查冠词的用法。此处泛指一个女孩，用不定冠词修饰，eight首字母发元音音素，故选A。
