中考语法题!分词做定语和分词做状语!
第一句：用定于从句来改写分词作定语的结构.
第二、三句：用分词作定语结构改写.
1、They use products made of particleboard,which is an inexpensive kind of board made of very small pieces of wood held together with a chemical.
2、The indoor pollution that causes sick-building syndrome can also occur in houses.
3、They use products such as computers ,fax machines ,and copiers that are made of plastic.