考研英语单词解析：efficiency

考研英语高频词解析：efficiency，背单词千万不要只记中文意思，一定要结合真题例句去理解它的语境。记住它的搭配比干巴巴地背释义有用得多。以下是详细介绍。

考研英语单词解析：efficiency

单词：efficiency

音标：/ɪˈfɪʃnsɪ/

释义：n.效率；功效

考频：★★★★★

记法：

词根拆解记忆：ef-（向外、产出）+ fic（做、执行）+ -iency（名词后缀，表性质状态）→ 向外输出有效成果的状态 → 引申义为效率、功效；也可通过对比其反义名词inefficiency（低效）联动记忆，降低记忆成本。

派生词：

efficient (形容词，意为“效率高的、有成效的”)

efficiently (副词，意为“高效地、有效地”)

inefficiency (反义名词，意为“低效率、无功效”)

inefficient (反义形容词，意为“效率低下的、效能差的”)

搭配：

energy efficiency 能源使用效率

work efficiency 工作效率

improve efficiency 提升效率

economic efficiency 经济效率

production efficiency 生产效率

考研真题例句：

Restrictions that keep highly polluting cars out of certain areas are a response to the absence of a larger effort to force people to improve their energy efficiency.

禁止高污染车辆进入特定区域的举措，是对未能大力推动民众提升能源使用效率这一现状的回应。

Big Tech firms are accused of using personal data to maximize their own profits at the expense of user privacy and market efficiency.

大型科技公司被指控利用个人数据最大化自身利润，却损害了用户隐私和市场效率。

When employees are given the flexibility to arrange their own working hours, their overall work efficiency tends to improve significantly.

当员工被赋予安排自身工作时间的灵活性时，他们的整体工作效率往往会大幅提升。

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