“be backed by” 用法详解
“Be backed by” 是一个常见的英语被动语态结构,表示某人或某事“得到……的支持、资助、证实或支撑”。该短语在新闻、学术写作和正式场合中尤为常见。
基本含义
“Be backed by” 通常意为:
- 被……支持(如资金、证据、权威等)
- 由……提供保障或担保
- 有……作为后盾
常见用法场景
- 政策/提案/计划:The new policy is backed by scientific research.(新政策有科学研究支持。)
- 人物/候选人:She is backed by several major corporations.(她得到了几家大公司的支持。)
- 声明/主张:His claim is backed by solid evidence.(他的说法有确凿证据支持。)
- 金融/信用:This currency is backed by gold reserves.(这种货币由黄金储备作保。)
语法结构
“Be backed by + 名词/名词短语” 构成被动语态,强调动作的承受者而非执行者。
主动语态示例:Investors back the startup. → 被动语态:The startup is backed by investors.
实用例句
- The project is backed by government funding.
- Her argument was backed by years of fieldwork.
- This certificate is backed by an internationally recognized institution.
- Any decision must be backed by data, not just intuition.