新东方网小编给各位初三考生整理了各学科的复习攻略，本文是初中英语知识点总结：复合形容词的使用，帮助各位考生梳理知识脉络，理清做题思路，希望各位考生可以在考试中取得优异成绩!

　　1、构成：数词-单数名词、数词?单数名词-形容词(每两词间用连字符-

　　2、用法：A：常作定语，用于名词前,一般不单独使用。Eg: an eight- year-old boy\ a ten-metre-tall tree

　　B：复合形容词后加复数，表示一类人或物，可独立作主语。Holiday(C)

　　选择：1、He is_____and he has an_____sister. A.ten years old ,8 –year-old B.ten-year-old,ten years old

　　2、We will have a______holiday after the exam. A.two month B.two-month C.two -months

　　3、I think______can choose their own life style.

　　A .nineteen-year-old B. nineteen-year-olds C. nineteen years old D. nineteen-year olds

　　4、There is a ____tree in the park. A.four hundrde years B.four-hundred-year-old

　　C.four-hundred-year old

　　5、Nie Haisheng had a ______flight in space. A.five-days B.five-day C.five day’s

　　6、I’d like to spend________holiday in the country. A.a two-day B. two-day C. two days’

　　7、The little boy wrote a______letter to his uncle. A.five-hundred words B. five-hundred-word