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

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