9、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)

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(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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