今日词根

METR/METER

comes from the Greek and Latin, meaning " measure"

METR/METER 在希腊和拉丁语中是“测量/尺寸”的意思，由 METR/METER 衍生出来的单词有很多，比如：

Metric ['me-trik]

adj. 公制的；米制的；公尺的    

n. 度量标准

简义：'metrical 测量的；韵律的；有韵律的'

具体释义：  Relating to or based on the metric system./ Relating to or arranged in meter.

记忆方法：  metric          -metr-测量,仪表 + -ic形容词词尾

例句：

Americans have resisted using the metric system for years, but are now slowing getting accustomed to a few of the metric units.

美国人多年来一直抵制使用公制，但现在正在慢慢适应一些公制单位。

Meter ['mē-tər]

n. 米；仪表；[计量] 公尺；韵律

vt. 用仪表测量

vi. 用表计量

n. (Meter)人名；(英)米特；(塞)梅特

简义： 'rhythm, metre'

具体释义：The basic metric unit of length, equal to about 39.37 inches./ A systematic rhythm in poetry or music.

记忆方法：meter     来源于希腊语metron测量。-meter-测量,仪表 → meter

例句：

The basic meter of the piece was 3/4, but its rhythms were so complicated that the 3/4 was sometimes hard to hear.

这首曲子的基本拍子是3/4，但它的节奏非常复杂，有时很难听到3/4。

odometer[ō-'dā-mə-tər]

n. （汽车的）里程表，[车辆] 里程计

简义：'mileage counter, odograph'

具体释义： An instrument used to meature distance traveled.

记忆方法： odometer    来自希腊语hodos,路，词源同cede,anode,method.-meter,计量仪器。即计路器，里程表。

例句：

Jennifer watched the odometer to see how far she would have to drive to her new job.

詹妮弗看了看里程表，看她得开多远才能找到新工作。

tachometer[ta-'kā-mə-tər]

n. 转速计；流速计

简义： 'revolution meter, operameter'

具体释义：A device used to measure speed of rotaion.

记忆方法：tachometer        tacho-,速度，-meter,仪器。

例句：

Even though one purpose of a tachometer is to help drives keep their engine speeds down, some of us occasionally try to see how high we can make the needle go.

尽管转速表的一个用途是帮助驾驶员降低发动机转速，但我们中的一些人偶尔也会尝试看看指针能走多高。