高考真题原句提选：

To 【decrease】 the amount of rubbish and to protect the environment, more governments are requiring people to recycle materials.为了减少垃圾的数量和保护环境，越来越多的政府要求人们对材料进行回收。(2015年安徽卷完形填空)Within eight days of starting his “laugh therapy” program his pain began to 【decrease】 and he was able to sleep more easily.在开始他的 "笑疗法 "计划的八天内，他的疼痛开始【减少】，而且他能够更容易入睡。(2006年上海卷完形填空A篇)The study, published Tuesday in the journal Child Development, found that the percentage of adolescents in the U.S. who have a driver’s license, who have tried alcohol, who date, and who work for pay has plummeted since 1976, with the most dramatic 【decreases】 in the past decade.周二发表在《儿童发展》杂志上的这项研究发现，自1976年以来，美国拥有驾照、尝试过酒精、约会和有偿工作的青少年比例急剧下降，其中过去十年的【下降】最为剧烈。(2018年上海卷完形填空)The birthrate in Europe has been in a steady decrease since the 1960s.自1960年代以来，欧洲的出生率一直在持续下降。Reactivity is an increase in negative emotions or a decrease in positive emotions.反应性是指消极情绪的增加或积极情绪的减少。

decrease²

/diːˈkriːs/

v. decreases 0 decreasing 0 decreased 1

减少

高考真题原句提选：

This switch has decreased pollution in the country's major lakes and reservoirs and made drinking water safer for people.这一转换减少了该国主要湖泊和水库的污染，使人们的饮用水更加安全。Quality after-school programs are designed to improve academic performance, decrease youth crimes and other high-risk behaviors, and help young people grow into healthy, successful adults.优质的课后项目旨在提高学习成绩，减少青少年犯罪和其他高风险行为，并帮助年轻人成长为健康、成功的成年人。While Spain as a whole is heating up quickly, temperatures near the greenhouses have decreased.虽然西班牙整体升温很快，但温室附近的温度却有所下降。After World War Ⅱ, the population of most large American cities decreased;第二次世界大战后，大多数美国大城市的人口减少。

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