He was wearing a lot of clothes to _____ himself from the cold.
A.protectB.preventC.keepD.stop在线课程A
试题分析：考查动词短语辨析。Protect sb from…保护某人免受…伤害；prevent/keep/stop sb from doing sth阻止某人做某事；句意：他穿了很多衣服以保护自己不被冻伤。故A正确。
考点：考查动词短语辨析
点评：本题要特别注意keep sb from doing sth中的介词from不能省略，如果省略了from就成了keep sb doing sth让某人不停地做某事。而stop/prevent sb from doing sth中的from是可以省略的。