问题
选择题
Effective measures should be taken to ______ the rare species _______ being over-killed by human beings.
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答案
D
题目分析：
句意：一些有效的措施应该被采取来保护稀有物种防止被人类的过度捕杀。protect sb from doing sth保护某人免遭…，故选B
点评：prevent sb from doing sth 阻止某人做某事，protect sb from doing sth保护某人免遭…，stop sb from doing sth阻止某人做某事，keep sb from doing sth阻止某人做某事,这类词组都要求学生进行牢记。