2019年mpacc考试英语真题——介词和介词短语1742

{01}(2013·安徽六校教育研究会测试)Before selecting the curtain for your newly decorated house, it"s important to know what colors look great ________ the wallpaper.

A.on

B.with

C.in

D.against

解析：D　句意：在为你新装修的房子选择窗帘前，弄清什么颜色在壁纸的衬托下看上去很漂亮是重要的。against以……为背景，衬托。本题受“衣服＋look＋形容词＋on＋sb.”句型的影响易误选A项，但本句中look前为颜色，on的宾语为壁纸，故不符合该句型。
本题选D。
{02}Judging from his face_______ there was a confident smile, we knew that he didn’t lose heart.

A.in which

B.from which

C.by which

D.on which

解析：
试题分析：句意：从他带着自信的笑容的脸上，我们知道他没有灰心。这里使用了定语从句，先行词是his face，定语从句中缺少的是on the face，所以用on which引导定语从句，选D。
本题选D。