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2015职称英语卫生类语法辅导:单位词的使用

2014-07-01 10:52 来源:医学教育网

单位词的使用

(1)不可数名词表示多少,一般用much,(a)little,a lot of,enough 等词表达,要数1,2,3,4…时要用“量词”表达,最常用的是a piece of(news,advice,furniture,information…)

(2)成双成对的名词一般用复数,如:a pair of trousers(裤子)/scissors(剪刀)/glasses(spectacles)(眼镜)/pliers(钳子)

(3)a couple of表示一对,或2-3…,如:a couple of days /people /things

(4)记住以下量词表达方式:

a loaf(two loafs)of bread(一个(两个)面包)

a burst of laughter(一阵笑声)

a fit of anger /chill(一阵发怒 /发冷)

a game of chess(一盘棋)

a lump of sugar(一块方糖)

10、其他应注意的数的表达形式

1)a three-year-old boy 比较The boy is three years old

2)five thousand people /several thousand people比较 thousands of people

表达具体数字时,thousand不加"s”,后面不加"of ”;ten,million,billion情况以此类推。

3)One-third of the students have passed College English Test Band IV.

Two-thirds of the students have passed College English Test Band IV.

One-third of the population in this area is living below the poverty line.

(这个地区有1/3人口生活在贫困线以下。)

注意:几分之几的表达形式;动词的单复数由后面的名词数决定。

4)a looker-on 比较two lookers-on(旁观者)/a brother-in-law比较two brothers-in-law(姻亲兄弟)

5)my father,together with(along with /with /as well as my mother and brothers)结构中,主语作单数处理,即my father.

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