be made of /from

be made of /from由……制成，用……做的

【用法】

be made of通常表示从成品可以看出原材料。

be made from通常表示从成品看不出原材料。

【例句】

◆ Steel is made from iron．钢是由铁炼成的。

◆ The houses were made of wood。这些房子是用木头做的。（浙江高考）

【联想】be made into被做成……

【微测】

"In the months before the carnival（狂欢节）we work overtime to meet the demand," said a mask maker."Many kilometers of silk and lace are made ____costumes." 

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