1.sound, voice, noise sound 自然界各种各样的声音，voice 人的嗓音，noise 噪音I hate the loud noise outside. 2. exercise, exercises, practice exercise 运动，锻炼(不可数)，exercises 练习(可数)，practice(反复做的)练习 take exercise 做运动 3. work, job 二者均指工作。work 不可数，job 可数 a good job，What interesting work it is! 4. cook, cooker cook 厨师，cooker 厨具 He is a good cook. 5. police, policeman police 警察的总称，后接复数谓语动词，policeman 指某个具体的警察 The police are questioning everyone in the house. 6. problem, question problem 常和困难联系，前面的动词常为 think about, solve, raise，question 常和疑问联系，多和 ask, answer 连用 7. price, prize price 价格，prize 奖，奖品，奖金 win the first prize The price is high/low. 8. a number of, the number of a number of 许多，谓语动词用复数。the number of… 的数目，谓语动词用单数。The number of students is increasing. 9. in front of, in the front of in front of 范围外的前面，in the front of 范围内的前面 A boy sits in the front of the room. 10. next year, the next year next year 将来时间状语，the next year 过去将来时间状语 He said he would go abroad the next year. 11. in bed, on the bed in bed 卧在床上，on the bed 在床上 The book is on the bed. He is ill in bed. 12. the people, a people the people 指人，a people 指民族 The Chinese is a peace-loving people. 13. it, one it 同一物体，one 同类不同一 I lost my pen. I have to buy a new one. 14. that, this that 指代上文所提到的，this 导出下文所要说的 I was ill. That's why… 15. none, nothing, no one none 强调有多少，nothing, no one 强调有没有，nothing 指物，no one 指人 --- How many… /How much… ? --- None. 16. anyone, any one anyone 指人，不能接 of，any one 指人/物均可，可接 of, any one of you 17. who, what who 指姓...
