1）compare … to比拟（指出其中的相似点） e.g. Man’s life is often compared to a candle. compare … with：把……和……相比（指出其不同之处） e.g. He compared his camera with mine.
2）feel for sb.：同情某人，为某人难过 e.g. I feel for you in your sorrow. feel for sth：（用手、脚、棍子等）摸索，寻找某物 e.g. She felt under the pillow for her watch.
3） admit to：承认 e.g. I have to admit to a dislike for modern music. admit sb.(in) to：允许某人进入某地或加入某组织、行业 e.g. They have admitted me into their club. 4） all for：完全赞成 e.g. I am all for holding a meeting to discuss it. for all：尽管 e.g. They could not open the box for all their forces.
5） all in all：总的说来 e.g. All in all it is a success. all in：疲倦，筋疲力尽 e.g. He was all in but he stuck it out.
6） as it is (was)：照目前的情况来看 e.g. As it is we shall be able to complete our task in time. as it were：可以说，姑且这样说 e.g. He is as it were a walking dictionary. 7） as much as：几乎，实际上 e.g. By running away he as much as admitted that he had taken the money. as much…as：与……一样多 e.g. It is as much our responsibility as yours.
8）a big time：尽兴，高兴的时刻 e.g. I had a big time there. the big time：第一流，级 e.g. Don’t worry you are in the big time now.
9） at one time从前某个时期 e.g. At one time we met frequently. at a time：每次，一次 e.g. You can borrow only two books at a time.
10） attach to：属于，归因于 e.g. No blame attaches to him. attach oneself to：参加，加入 e.g. He attached himself to the group of climbers.
11） be a credit to：为……增光 e.g. I hope you will be a credit to your school. do credit to：为……增进荣誉 e.g. This piece of work does credit to you.
12） bear in mind：记住 e.g. I hope you will bear in mind all I am saying. have in mind：考虑 e.g. Don’t give your confidence to others regarding the plan you have in mind. 13） begin with：以……为起点 e.g. He advised me to begin with something easy. to begin with：首先 e.g. To begin with we must consider the problem from all sides.
14） build up：逐步建成，增强 e.g. They are trying hard to build up an independent economy. He went for an ocean voyage and built up his health. build on：以……为基础，依赖 e.g. Let’s build on your idea. We shall build on your supporting us.
15） by day：在白天 e.g. Most of them work by day and study by night. by the day：（指工作报酬等）按日计算 e.g. Will you pay me by the day or by the hour? 16） can but只好……罢了 e.g. We can but try to make him see how unreasonable he has been. cannot but：不得不，禁不住 e.g. I cannot but tell her the truth.(=I cannot help telling her the truth)
17） come forth：出现，发行 e.g. Many new things are coming forth.. Do you know that a set of new stamps has come forth? come forward：自告奋勇，提出供讨论 They have come forward with an offer to help. The matter was deferred at last evening’s meeting but will come forward at our next session.
18）as well：也，还是……为好 e.g. He gave me advice and money as well. Since you have begun to do it you may as well finish it. as well as：不仅……而且，除……之外 e.g. With television we see a picture as well as hearing sound. Small towns as well as big cities are being rapidly industrialized.
19） consist in：包含在……中 e.g. Happiness consists in good health. consist of：由……组成 e.g. The apartment consisted of two rooms and a kitchen.
20） end on：两端相碰，正对 e.g. The two ships collided each other end on. We shouldn’t place the bicycles end on. on end：竖着，连续地，不断地 e.g. Place the box on end. She often works for 20 hours on end.
21） familiar to：某事为某人熟知 e.g. There were facts not familiar to me. familiar with：熟悉或通晓某事 e.g. He is familiar with English German and French.
22) according to：按照，根据 e.g. They were commended or criticized according to their work. according as：随……而定 e.g. The thermometer rises or falls according as the air is hot or cold.