1. People enjoy swimming and playing in the cool water of a lake in the summer.
    夏天人们还喜欢在清凉的湖水里游泳和玩耍。

2. People enjoy water for entertainment purposes, too.
    人们还因为娱乐的目的而喜欢水。

3. Poison makes people sick; some poisons kill people as well as birds and animals.
    毒物会使人生病；有些毒物不但会毒死鸟和动物，还会毒死人。

4. People get sick from drinking contaminated water.
    人饮用了被污染的水就会生病。

5. Psychologists have been studying the changes people experience when they leave rural areas and move into urban environments.
    心理学家一直在研究人们在离开乡村搬到城市环境后所经历的变化。

6. People in Beijing must be thinking I was enjoying myself here in the richest country in the world.
    北京的亲友们肯定认为我在这个世界上最富裕的国家里过得很开心。

7. Psychology counselors, for example, often help these people by asking about the hobbies they enjoyed in the past and don't have any more now.
    例如, 心理咨询顾问常常可以通过询问他们过去喜欢的、而现在却丢得一干二净的业余爱好来帮助他们。

8. People who have the qualities discussed above usually make very successful online students.
    一旦拥有这些素质，网上学习说不定将是你最有价值的发现之一。

9. Professional teachers are brought in to help with special subjects, but mostly parents and children work together on units like studying the Greeks or the American Civil War, reading about events, making costumes(戏装), and learning how people used to
    一些专业教师被请来上一些专门课程，但有些学习单元主要由家长和孩子一同学习，如学习希腊史和美国内战史，阅读关于重大事件的书籍，制作舞台道具以及了解过去人们的生活方式。

10. People who are content with modern design are probably comfortable with modern life-styles.
    对现代设计感到满意的人，现代的生活方式可能会使他们心满意足。