effectiveness
用法要点
介词搭配
effectiveness 常与介词 of 连用,表示某事物的有效性;也可与 in 搭配,表示在某个领域或方面的有效性。
句型结构
常用于 'the effectiveness of something' 或 'something's effectiveness' 结构,作为主语或宾语,描述有效性程度。
语域说明
effectiveness 是正式用语,常见于学术、商务、医疗等专业语境,日常口语中可用简单词如 'how well it works' 替代。
基础例句
The effectiveness of this cleaning product is amazing—it removes stains quickly.
这款清洁产品的效果惊人,能快速去除污渍。
We need to test the effectiveness of the new software before we buy it.
在购买新软件之前,我们需要测试它的有效性。
His teaching methods have improved the effectiveness of our study sessions.
他的教学方法提高了我们学习小组的效果。
The effectiveness of the diet plan depends on how strictly you follow it.
这个饮食计划的效果取决于你遵循的严格程度。
高级例句
The research paper evaluates the effectiveness of cognitive-behavioral therapy in treating anxiety disorders.
这篇研究论文评估了认知行为疗法在治疗焦虑症方面的有效性。
Our company conducts regular audits to assess the effectiveness of our quality control systems.
我们公司定期进行审计,以评估质量控制系统的有效性。
The government report highlights the effectiveness of the new environmental regulations in reducing pollution.
政府报告强调了新环境法规在减少污染方面的有效性。
In the business meeting, we discussed strategies to enhance the effectiveness of our marketing campaigns.
在商务会议上,我们讨论了提高营销活动有效性的策略。
高频搭配
verb
adjective
noun
adverb
preposition
phrase
常见错误
effectivity 是较少使用的非标准形式,正确名词是 effectiveness,表示有效性或效果。
effective 是形容词,意为“有效的”,不能直接作名词;应使用名词 effectiveness 来表示“有效性”或“效果”。
近义词辨析
efficiency
efficiency 强调以最少资源或时间完成任务的能力,侧重过程优化;effectiveness 强调实现目标或产生预期结果的程度,侧重最终成果。
The new machine improves efficiency (saves time), but its effectiveness (achieving the goal) depends on proper operation.
efficacy
efficacy 通常用于医学或科学语境,指在理想条件下产生特定效果的能力,更理论化;effectiveness 更通用,指在实际应用中的效果,包括现实因素。
The drug showed high efficacy in lab tests, but its effectiveness in real-world patients may vary.