【rate的用法及短语】“Rate”是一个常见的英语单词，既可以作为名词，也可以作为动词使用。在不同的语境中，“rate”有着多种含义和用法，掌握其常见搭配和表达方式有助于提高英语理解与运用能力。以下是对“rate”的主要用法及其相关短语的总结。
一、基本用法总结
| 词性 | 含义 | 举例 |
| 名词 | 比率、速率、等级、评价 | The exchange rate is fluctuating. His performance received a high rating. |
| 动词 | 评估、评定、（以某速度）移动 | I rate his work as excellent. The car rates at 60 km/h. |
二、常见短语及解释
| 短语 | 含义 | 例句 |
| at a rate of | 以……的速度 | The company grows at a rate of 10% per year. |
| be rated as | 被评为…… | This movie is rated as one of the best in the genre. |
| rate something at | 给……定级或评分 | The teacher rated the essay at 85 out of 100. |
| rate something down | 降低对某物的评价 | He rated the hotel down after the bad service. |
| rate something up | 提高对某物的评价 | The new product was rated up by customers. |
| on the rate of | 在……的水平上 | The cost is on the rate of $5 per hour. |
| rate of change | 变化率 | The rate of change in temperature was rapid. |
| rate of interest | 利率 | Banks offer different rates of interest for loans. |
| rate of return | 回报率 | The rate of return on this investment is high. |
| rate yourself | 自我评价 | I rate myself as a good problem solver. |
三、使用建议
- 当“rate”作为动词时，常用于描述对事物的评估或对速度的描述。
- 作为名词时，常见于金融、数学、评价等语境中。
- 注意区分“rate”与“ratio”：前者多指“比率”或“评价”，后者更偏向“比例”或“比值”。
通过掌握“rate”的不同用法和相关短语，可以更准确地理解和使用这一词汇，提升英语表达的准确性与自然度。
