1. The computer will automatically keep track of the number of items and their price.
    电脑会自动记录物品的数目和价格。

2. Then the child has, as it were, private lessons all the year round, while an adult language-student has each week a limited number of hours which he generally shares with others.
    此外，我们可以说孩子一年到头都有私人教师给他上课，而成年的语言学习者每周只有有限的几小时，而且通常都是与他人一起分享上课时间。

3. To understand the state of business, they may look at the number of building permits for new houses.
    为了了解该行业的状况，他们可能会调查新房建造许可证的发放数量。

4. The "1998 Report Card on the Ethics of American Youth" found that 7 out of every 10 high school kids have cheated on a test at least once. Including all grades, the number is more than 6 out of 10.
    据"1998年美国青年道德报告"披露，每10名高中生中就有7名考试至少作弊一次。如包括所有年级，那么该数字就是十分之六强。

5. The government's official numbers tell this story: From 1972 to 1987, the US population grew by 16 percent, while the number of households grew by 35 percent.
    政府的官方数字表明：1972至1987年，美国人口增长了16%，家庭数目增加了35%，

6. These are the people who regularly have to tackle the increasing number of criminals who are prepared to carry guns.
    特警通常要对付日益增多的携带枪支的犯罪分子。

7. The current policy is to have a small number of specialists available in each of the 43 police departments in Britain.
    目前的做法是在英国所有的43个警局中都配备少数特警，

8. Number five.
    是5号。

9. Now the slanting rays cover a much larger surface of the earth than the same number of rays coming straight down.
    此时，斜射的光线要比同样数量的直射的阳光在地表的照射面积大。

10. Number 18 was of a ship moving out of the Gambia River,James Fort.
    第18号是关于一艘从冈比亚河的詹姆士要塞开出来的船。