导读：在我们平时备考，或者考试期间，很多单词会让我们琢磨不定，很容易混淆。看看笔者总结的这些易混淆的词组吧！
1. clothes, cloth, clothing clothes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 of 2. incident, accident incident指小事件, accident指不幸的事故He was killed in the accident. 3. amount, number amount后接不可数名词， number后接可数名词 a number of students 4. family, house, home home 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, 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. 6. photo, picture, drawing photo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, word vocabulary词汇，一个人拥有的单词量，word具体的单词He has a large vocabulary. 8. population, people population人口，人数，people具体的人 China has a large population. 9. weather, climate weather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, way road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, subject course课程（可包括多门科目），subject科目（具体的学科）a summer course 12. custom, habit custom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, reason cause 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 late 14. exercise, exercises, practice exercise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 5 16. speech, talk, lecture speech指在公共场所所做的经过准备的较正式的演说，talk日常生活中的一般的谈话，讲话，lecture学术性的演讲，讲课 a series of lecture on… 17. officer, official officer部队的军官，official政府官员 an army officer 18. work, job 二者均指工作。work不可数，job可数 a good job 19. couple, pair couple主要指人或动物，pair多指由两部分组成的东西 a pair of trousers 20. country, nation, state, land country侧重指版图，疆域，nation指人民，国民，民族，state侧重指政府，政体，land国土，国家 The whole nation was sad at the news.