be made from 与 be made of 的区别
在英语学习中,be made from 和 be made of 都表示“由……制成”,但它们的使用场景和含义有所不同。正确区分两者有助于提升语言表达的准确性。
1. be made of
当原材料在成品中**仍然可见或可识别**时,使用 be made of。
- The table is made of wood.(这张桌子是木头做的。→ 能看出是木头)
- The necklace is made of gold.(这条项链是金子做的。→ 能看出是金子)
2. be made from
当原材料在成品中**已发生化学或物理变化,无法直接辨认**时,使用 be made from。
- Paper is made from wood.(纸是由木头制成的。→ 纸看不出是木头)
- Wine is made from grapes.(葡萄酒是由葡萄酿成的。→ 酒看不出是葡萄)
3. 小结对比
- be made of:看得出原材料(物理变化为主)
- be made from:看不出原材料(常涉及化学变化)
4. 常见例句
- This shirt is made of cotton.
- Bread is made from wheat.
- The house is made of bricks.
- Plastic is made from oil.