1. at, in (表地点)
　　at小地点，in大地点 arrive at a small village, arrive in Shanghai
　　2. 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.
　　3. increase to, increase by
　　increase to增长到…，increase by增长了… The number increased by 2,000 to 5,000.
　　4. 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
　　5. 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.
　　6. 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.)
　　7. after, in (表时间)
　　after接时间点，in接时间段 after 7:00, in five minutes
　　8. 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.
　　9. 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.
　　10. 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
　　11. 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
　　12. 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
　　13. at peace, in peace
　　at peace平静地，in peace和平地 live in peace with one's neighbors
　　14. 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
　　15. 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.
　　16. 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.
　　17. 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.
　　18. 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.
　　19. 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
　　20. 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.

21. through, across
　　through穿越空间，across在…上穿过 through the forest, across the desert
　　22. on the way, in the way
　　on the way在前往…的路上，in the way挡路 The chair is in the way.
　　23. above, on, over
　　above在上面，不接触，on在上面，接触，over在正上方 fly over the hill
　　24. until, not…until
　　until到…为止， not…until直到…才（常跟点动词连用）I waited until 3:00. He didn't come until 3:00.
　　25. besides, except, except for
　　besides除了…还（包括在内）except除了（不包括在内），except for整体…除了某一点以外 The composition is good except for a few spelling mistakes.
　　26. weather, if
　　当是否解时，只有在宾语从句中二者可以互换，其余都用weather，当如果解时用if I don't know if/whether he will come. If he comes, I'll let you know.
　　27. and, or
　　and并且，or或者，否则，常用于否定句中 I don't like apples or bananas.
　　Hurry up and you'll catch the bus. Hurry up or you'll miss the bus.
　　28. because, since, as, for
　　原因由强到弱为：because, since/as, for. 在句中的位置如下：1)…because… 2) Since/as…, … 3) …, for… Since I was ill, I didn't go.
　　29. when, as, while (表时间)
　　when从句动词点动词，持续性动词均可，as重在表示动作同时发生，伴随进行，while从句动词为持续性动词 While I slept, a thief broke in.
　　30. the same…as, the same…that
　　the same…as和…一样的（相似但不同一）， the same…that 同一物体 This is the same pen that I used yesterday. (同一支笔)
　　31. as well, as well as
　　as well也，常放于句末，和and连用表示既…又；as well as并列连词，不但…而且… He is a professor, and a writer as well.
　　32. such…as, such…that
　　such…as像…样的，such…that如此…以至于 He is not such a fool as he looks like. He is such a good student that all the teachers like him.
　　33. because, because of
　　because连词，连接两句话，because of介词短语，后接词或短语 He didn't go to school because of his illness.
　　34. in order that, in order to
　　表目的，in order that后接句子，in order to后接动词原形 I got up early in order to catch the first bus. I got up early so that I could catch the first bus.
　　35. for example, such as
　　for example一般只列举一个，such as列举多个例子 I have been to a lot of American cities, such as New York, Atlanta and Chicago.
　　36. used to, would
　　表过去常常，和现在相对应用used to，不提现在用would I used to get up early, but now I don't.
　　37. All right. That's all right. That's right.
　　All right. That's all right. 当好吧解时，可以替换；当不客气，没关系解时只能用That's all right. That's right. 那是对的 ---Sorry. --- That's all right.
　　38. such…that, so…that
　　当如此…以至于解时，such…that修饰名词，so…that修饰形容词或副词，但名词前面如果有many, much, little, few修饰用so…that，不用such that
　　so many people that… such a lovely boy=so lovely a boy
　　39. so + be (have, can, do)+主语， neither(nor) + be (have, can, do)+ 主语
　　也一样，肯定用so…否定用neither (nor) ---I can't play tennis. ---Nor can I.
　　40. Shall I…? Will you…?
　　Shall I…? 征求对方意见或向对方请示，意为我能…吗？ Will you…? 请求或建议对方做某事，意为你愿意…吗？Will you help me? Yes, I will.