This kind of watches is made_______plastic.And they are made in Guanggzhou.
问题描述：
This kind of watches is made_______plastic.And they are made in Guanggzhou.
是of还是from
答
填 from
This kind of watches is made from plastic.And they are made in Guangzhou.
这种手表是由塑料制成.它们是在广州制造的.
【解析】
be made of和be made from 都表示"由…制成",主语为制成品.
be made of 表示制成成品后,仍可看出原材料.
be made from 表示制成成品后,看不出原材料.成品表应该是看得出来是塑料做的啊，所以为什么不用of？？其实很难辨别的，有的手表是钢化玻璃，合金，薄钢等材料，看过去不一定一下子看的出来。此外，塑料这种原材料本身也是多样化的，一般我们说有塑料制成都是用be made from