问题
选择题
Books are made _____paper and paper is made _____ wood and bamboo
A. from, from B. of, of C. of, from
答案
答案：C
题目分析：be made of,be made from的意思都是由……组成，be made of 是可以看出原材料的,be made from是不可以看出原材料的,而题中第一空书是由纸做的，可以看出原材料的，故用be made of;第二空纸是由木头和竹子做的，看不出原材料，故用be made from，
故选C
点评：除了这两个常考短语外，补充一个be made in +地点