1. clothes, cloth, clothingclothes 统指各种衣服,谓语动词永远是复数, cloth 指布,为不可数名词 clothing 服装的总称,指一件衣服用 a piece of, an article of2. incident, accidentincident 指小事件, acciden t 指不幸的事故He was killed in the accident.3. amount, numberamount 后接不可数名词, number 后接可数名词 a number of students4. family, house, homehome 家,包括住处和家人,house 房子,住宅,family 家庭成员. My family is a happy one.5. sound, voice, noisesound 自然界各种各样的声音,voice 人的嗓音,noise 噪音I hate the loud noise outside.6. photo, picture, drawingphoto 用照相机拍摄的照片,picture 可指相片,图片,电影片,drawing 画的画Let's go and see a good picture.7. vocabulary, wordvocabulary 词汇,一个人拥有的单词量,word 具体的单词He has a large vocabulary.8. population, peoplepopulation 人口,人数,people 具体的人 China has a large population.9. weather, climateweather 一天内具体的天气状况,climate 长期的气候状况 The climate here is not good for you.10. road, street, path, wayroad 具体的公路,马路,street 街道,path 小路,小径,way 道路,途径take this road; in the street, show me the way to the museum.11. course, subjectcourse 课程(可包括多门科目),subject 科目(具体的学科)a summer course12. custom, habitcustom 传统风俗,习俗,也可指生活习惯,后接 to do, habit 生活习惯,习惯成自然,后接 of doing. I've got the habit of drinking a lot.13. cause, reasoncause 指造成某一事实或现象的直接原因,后接 of sth./doing sth,reason 用来解释某种现象或结果的理由,后接 for sth./doing sth. the reason for being late14. exercise, exercises, practiceexercise 运动,锻炼(不可数),exercises 练习(可数),practice(反复做的)练习 Practice makes perfect.15. class, lesson作"课"解时,两者可以替换.指课文用 lesson. 指班级或全体学生用 class. lesson 6; class 516. speech, talk, lecturespeech 指在公共场所所做的经过准...