记忆方法
双解例句
小知识
When you pay a high rate, you pay a lot of money. When you move at a high rate of speed, you go fast. If you are a judge at a contest, you rate the contestants.
It's interesting how one word can have different origins for different meanings. For example, the noun rate, referring to amounts comes from the Latin rata, “a fixed amount.” But the verb rate seems to come from the Scandinavian rata, “to reject.” If the person you are dating asks you to rate them against your previous partners, you might change the subject at a high rate of speed.
实用短语
常用短语
单词用法
estimate:通常指由个人作出的主观估价。
appraise:指以专家身份作了最终精确的估价。
assess:原义指对为确定交多少税而估计,引申指通过估价以便更好利用。
evaluate与appraise相似,指使判断绝对准确,但多用于对人物的某方面的评价,很少用于评价某物的市场价值。
value:侧重指一般人对某物的价值或价格所作的估计。
rate:专指评定价值等级的高低。
n.等级;军衔;
v.列队;排列
interest rate[经]利率
growth rate增长率;生长速率
flow rate流量;流速
词根词缀
词根: rat
=calculate,表示”计算,考虑”
adj.
rational 理性的,合理的ration[n.理性,定量]+al……的→理性的,合理的
n.
rate 比率;等级;价格,费用rat计算,考虑+e→估价;评价→比率;等级
ratio 比,比率,比例rat计算,考虑+io→n.比,比率,比例
ration 理性,定量rat计算,考虑+ion→计算出来的量→定量,引申为理性
rational [数]有理数ration[n.理性,定量]+al……的→理性的,合理的
v.
rate 估价;评价rat计算,考虑+e→估价;评价→比率;等级
ratify 批准,认可,追认rat计算,考虑+ify表动词→通过计算证实
同义词辨析
这些动词均有”估价,估计”之意。
同义词
同根词
词根:rate
adj.ratable可估价的;按比例的;可评价的;应课税的
rateable按比例的;可估价的;应纳税的(等于ratable)
n.rating等级;等级评定;额定功率
ratability可估价之事;可课税
v.rating对…评价(rate的ing形式)