1. in a word, in words
　　in a word總之，一句話， in words口頭上 In a word, you are right.
　　2. in place of, in the place of
　　in place of代替，in the place of在…地方 A new building is built in the place of the old one.
　　3. in secret, in the secret
　　in secret秘密地，暗自地，偷偷地，一般用作狀語；in the secret知道內情，知道秘密，一般用作表語 My mother was in the secret from the beginning.
　　4. a girl, one girl
　　a girl可泛指所有女孩, one girl一個女孩 Can one girl carry such a big box?
　　5. take a chair, take the chair
　　take a chair相當于sit down坐下，take the chair開始開會
　　6. go to sea, by sea, by the sea
　　go to sea當海員，出航，by sea乘船，由海路， by the sea在海邊 go by sea
　　7. the doctor and teacher, the doctor and the teacher
　　the doctor and teacher指一個人，既是醫生又是老師，the doctor and the teacher兩個人，一個醫生和一個老師 the doctor and teacher is
　　8. in office, in the office
　　in office在職的，in the office在辦公室里 He is in office, not out of office.
　　9. in bed, on the bed
　　in bed臥在床上，on the bed在床上 The book is on the bed. He is ill in bed.
　　10. in charge of, in the charge of
　　in charge of管理，負責照料， in the charge of由……照料 He is in charge of the matter. The matter is in the charge of her.
　　11. in class, in the class
　　in class在課上，in the class在班級里 He is the best student in the class.
　　12. on fire, on the fire
　　on fire著火,on the fire在火上 Put the food on the fire. The house is on fire.
　　13. out of question, out of the question
　　out of question毫無疑問的，out of the question不可能的
　　14. a second, the second
　　a second又一，再一，the second第…… He won the second prize.
　　15. by day, by the day
　　by day白天，by the day按天計算 The workers are paid by the day.
　　16. the people, a people
　　the people指人，a people指民族 The Chinese is a peace-loving people.
　　17. it, one
　　it同一物體，one同類不同一 I lost my pen. I have to buy a new one.

18. that, this
　　that指代上文所提到的，this導出下文所要說的 I was ill. That's why…
　　19. none, nothing, no one
　　none強調有多少，nothing, no one強調有沒有，nothing指物，no one指人
　　--- How many…/How much…? --- None.
　　20. anyone, any one
　　anyone指人，不能接of，any one指人物均可，可接of any one of you
　　21. who, what
　　who指姓名或關系，what指職業或地位 What is your dad? He is a teacher.
　　22. what, which
　　what的選擇基礎是無限制的，which在一定范圍內進行選擇 Which do you prefer, bananas or apples?
　　23. other, another
　　other后接名詞復數，another后接名詞單數 other students, another student
　　24. not a little, not a bit
　　not a little非常，not a bit一點也不 I'm not a bit tired. 我一點兒也不累。
　　25. many, much, a lot of
　　many和可數名詞連用，much和不可數名詞連用，a lot of可數，不可數均可，但不用于否定句 I haven't many books.
　　26. much more…than, many more…than
　　much more…than后接形容詞或不可數名詞，many more…than后接可數名詞 many more people, much more water, much more beautiful
　　27. no, not
　　no=not a/any no friend=not a/any friend no water=not any water
　　28. no more than, not more than
　　no more than相當于only，僅僅，只有，not more than 至多，不超過
　　29. majority, most
　　majority只能修飾可數名詞，most可數不可數均可 the majority of people
　　30. by oneself, for oneself, to oneself, of oneself
　　by oneself單獨的，獨自的，for oneself為自己，to oneself供自己用的，of oneself 自行的