九乡新闻网超短波治疗仪多长时间:be made of和be made from有什么区别
来源：百度文库 编辑：九乡新闻网 时间：2024/04/30 00:09:33
be made of和be made from有什么区别？ be made of和be made from都表示“由……制成”，主语为制成品。
1.be made of 表示制成成品后，仍可看出原材料是什么，保留原材料的质和形状，制作过程仅发生物理变化。如：
The kite is made of paper．风筝是用纸做的。
2.be made from 表示制成的东西完全失去了原材料的外形或特征，或原材料在制作过程中发生化学变化，在成品中已无法辨认。如：
The paper is made from wood．纸是木头做的。
Butter is made from milk．黄油是从牛奶中提炼出来的。
1.be made of 表示制成成品后，仍可看出原材料是什么，保留原材料的质和形状，制作过程仅发生物理变化。如：
The kite is made of paper．风筝是用纸做的。
2.be made from 表示制成的东西完全失去了原材料的外形或特征，或原材料在制作过程中发生化学变化，在成品中已无法辨认。如：
The paper is made from wood．纸是木头做的。
Butter is made from milk．黄油是从牛奶中提炼出来的。
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