Question

after the exam, we'll have___d__holiday.

After the exam,we'll have﹍﹎holiday.A two weeks B two-weeks C.two weeks' D.two week's 选C 为什么
-Did you have a good time during the ____summer holiday?-sure.We relaxed ourselves and did many things we like.
A.two months B.two month C.two-month D.two month's 选C
两道题有什么区别?为什么第一题用two weeks' 第二题用two-month?为什么第二题的two-month 不加's?

Answer 1

首先,我们应弄明白一个道理,即用连字符“-”将两个名词连接构成一个形容词,不管名词的量,始终用单数,这就是为何two-week的week不加s的原因； 而没有用连字符“-”的时候,则必须遵循名字数的变化规律,即名词的量大于等于2时,要将其变为复数.
第二道题,同理