核心问题
Soot is made up tiny particles, such as coal, wood, or oil, that are not burned. (TOEFL)
我知道答案是 A, 但我不知道如何改正上面的句子, 是否应改为 made up from?
词典解答
应当记住,英语里有一个习惯用语:make up of。它常常用于被动结构:be made up of,相当于 consist of(由……所组成)。
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All bodies are made up of atoms. (NAECD) 一切物体都是由原子组成的。
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A car is made up of many different parts. (DAI) 汽车是由许多不同的零件组成的。
上面试题的 A 项不能改为 made up from, 因为 be made up from 的含义是“由……所制造”“由……制作”：
She wore a necklace made up from silver coins. (CIE) 她戴着一串由银币制成的项链。