1. When reports came into London Zoo that a wild puma had been spotted forty-five miles south of London, they were not taken seriously.
    当伦敦动物园接到报告说，在伦敦以南45英里处发现一只美洲狮时，这些报告并没有受到重视。

2. The winning car reached a speed of forty miles an hour----much faster than any of its rivals.
    获胜的那辆车达到了时速40英里--远远超过任何对手。

3. The eleven-year-old girl who dresses like a college student and the forty-year-old woman who dresses like a teenager are saying something through what they wear.
    一个十一岁的小姑娘穿得像个大学生，或是一个四十岁的女人穿得像个十几岁的少女，他们都在通过自己的穿着表达着什么。

4. The past forty years saw great success in the control of spreading diseases and great strides toward achieving "health for all by the year 2000" (a major WHO goal) through improved basic health care, food, cleanliness, and immunization(免疫)
    在过去的40年中，通过改善基本医疗保健、食品、卫生和免疫等项目，人类在控制流行病方面取得了巨大的进步，并且朝着实现"2000年人人享受健康"（世界卫生组织的一项主要目标）迈出了一大步。

5. He reduced speed to forty kilometres an hour.
    他把速度减到每小时四十公里。

6. He´s only forty-one years old,
    他只有41岁，

7. He began to reckon up his time: he started on Monday and today was Friday; five days, from seven to five, less half an hour for breakfast and an hour for dinner, eight and a half hours a day -- forty-two hours and a half in all.
    他开始计算自己的工钱：他从星期一开始干活，今天是星期五，共五天，早七点到下午五点，除去不到半小时的早饭时间，一个小时的午饭时间，一天干八个半小时，一共是四十二个半小时。

8. After switching on powerful arc lights, they saw great stalagmites---- some of them over forty feet high ---- rising up like tree-trunks to meet the stalactites suspended from the roof.
    他们打开强力弧光灯，看见一株株巨大的石笋，有的高达40英尺，像树干似地向上长着，与洞顶悬挂下来的钟乳石相接。

9. At the end of the day, some forty thousand dead and wounded lay on the battlefield.
    一天下来，大约有四万死伤的士兵躺在战场上。

10. About forty-seven, or forty-eight.
    约有47岁，或是48岁，