Question

—Paper ___________ wood. We should not waste paper.
—I agree. I always use __________ sides of paper.

A．is made of; either	B．is made from; both
C．makes of; both	D．makes from; either

Answer 1

B

解析試題分析：句意：紙是由木頭做的。我們不應(yīng)該浪費(fèi)紙。我同意。我總是兩面都用。be made of 是可以看出原材料的, be made from是不可以看出原材料的,這兩個(gè)短語(yǔ)的意思都是由……組成。紙是看不出由木頭做的，故用be made from。both兩者都+名詞復(fù)數(shù)，either兩者中的任何一個(gè)+名詞單數(shù)。故選B.
考點(diǎn)：考查近義詞組辨析。