161. at, in (表地点)
at小地点，in大地点 arrive at a small village, arrive in Shanghai
162. at work, in work
at work在工作，在上班，in work 有职业，有工作 Both my parents are at work. They are not at home.
163. increase to, increase by
increase to增长到…，increase by增长了… The number increased by 2,000 to 5,000.
164. at ease, with ease
at ease舒适地，安逸地；with ease容易地，无困难地 do it with ease
165. day after day, day by day
day after day日复一日（无变化）；day by day一天天地（有变化）Trees grow taller day by day.
166. like, as
like相似关系，但并不等同，as同一关系，两者实为一体 Don't treat me as a child. (In fact, I'm a child.)
167. after, in (表时间)
after接时间点，in接时间段 after 7:00, in five minutes
168. between, among
between两者之间，三者或三者以上两两之间, among三者或三者以上之间
Switzerland lies between France, Germany, Australia and Italy.
169. after, behind (表位置)
after强调次序的先后，behind强调物体静态位置的前后 There are many trees behind the house.
170. since, for (完成时间状语)
since接点时间或一句话，for接一段时间 for three years, since 3:00
171. on the corner, in the corner, at the corner
on the corner物体表面的角上，in the corner物体内部的角落里，at the corner物体外部的角落上（拐角处）on the corner of the table
172. warn sb. of, warn sb. against
warn sb. of提醒某人注意某事，warn sb. against提醒某人不要做某事 warm him against swimming in that part of the river
173. at peace, in peace
at peace平静地，in peace和平地 live in peace with one's neighbors
174. on earth, on the earth, in the earth
on earth在世上，在人间，到底，究竟，一点也不，on the earth在地上，在地球上，in the earth在地下，在泥土里 no use on earth
175. in surprise, to one's surprise, by surprise
in surprise惊奇地，to one's surprise使某人吃惊的是，by surprise使…惊慌 The question took the professor by surprise.
176. in the air, on the air, in the sky
in the air正在酝酿中，on the air播送，广播，in the sky在天空中 His show is on the air at 6:00 tonight.
177. in the field, on the field
in the field在野外，on the field在战场上 He lost his life on the field.
178. in the market, on the market
in the market表示场所或地点，在市场上，on the market出售 He sells fish in the market. Fresh vegetables are on the market now.
179. in the sun, under the sun
in the sun在阳光下，under the sun地球上，全世界 people under the sun
180. in a voice, with one voice
in a voice出声地，with one voice异口同声地 They refused with one voice.
