Many Southerners ______ runaway slaves during the Civil War.
A.avoided
B.shaded
C.prevented
D.sheltered
参考答案:D
解析: 本题测试近义词辨析。shelter意为“掩蔽,庇护”,如:He was accused of sheltering criminals.他被指控包庇罪犯。avoid意为“避免,避开”,如:To avoid confusion,the teams wore different colors.为避免混淆,队伍分穿不同颜色的衣服。shade意为“遮蔽,遮光”,如:I shaded my eyes with my hand. “我用手遮在眼睛上挡住光线。”prevent (from)意为“预防,防止”,如:prevents us from winning,“阻挠我们获胜”。