1．rate n. 比率；等级；价格，费用；速度
(教材P1)Many countries around the world are developing at a very fast rate.
世界上的许多国家以飞快的速度发展着。
(2019·全国卷Ⅰ)Hospital patients who see tree branches out their windows are likely to recover at a faster rate than patients who see buildings or sky instead.医院里看见病房窗户外面树枝的病人可能比看见楼房或天空的病人恢复得快。
Most people walk at an average rate of 5 kilometres an hour.
大多数人步行的平均速度为每小时5公里。
(1)at a．..rate 以……的速度
at the rate of 以……的速度，以……的比率
at any rate 无论如何，不管怎样
at this/that rate 照这/那情形看来
(2)rate v. 估价；评价
rate...as... 作为……受到评价
At any rate the task must be fulfilled.
无论如何，任务必须完成。
They rated him highly as a colleague.
作为同事，他们对他评价很好。
