Question

—What do you think this coat is made _____?

—Wool. It’s used for _____.

A. of, keeping warm B. from, keeping warm

C. in, keeping warmly D. of, keeping warmly

Answer 1

B

【解析】

试题分析：句意：-你觉得这件大衣是由什么做的？-羊毛。它用于保暖。Be made of和be made from都译为：由……制成，但前者表示成品中能看出原料，后者表示成品中看不出原料。Be made in表示在某地制造；keep warm保持温暖。所以选B。

考点：考查介词。