1. occur 替换 think of

　　Suddenly I had an idea that someone had broken into my house. →

　　An idea occurred to me that someone had broken into my house.

　　It occurred to me that someone had broken into my house.

　　2. devote替换spend

　　He spends all his spare time in reading. →

　　He devotes all his spare time to reading.

　　3. seek替换want / look for

　　They sought ( wanted ) to hide themselves behind the trees.

　　4. average 替换ordinary

　　I’m an average ( ordinary ) student.

　　5. but替换very

　　The film we saw last night was very interesting. →

　　The film we saw last night was nothing but interesting.

　　The film we saw last night was anything but boring.

　　6. seat 替换sit

　　On his way to school, he found an old lady seated (sitting) by the road, looking worried.

　　7. suppose 替换should

　　He is supposed to ( should ) have driven more slowly.

　　8. appreciate 替换thank

　　Thank you very much for you help. →

　　We appreciate your help very much. / Your help is much appreciated.

　　9. the case替换 true

　　I don’t think it is the case ( true ).

　　10.on替换as soon as

　　As soon as he arrived, he began his research. →

　　On his arrival, he began his research..

　　11.due to替换because of

　　He arrived late due to ( because of ) the storm.

　　12.cover替换walk/read

　　After covering (walking) 10 miles, we all felt tired.

　　13.contribute to替换 be helpful/useful

　　Plenty of memory work is undoubtedly helpful to English study. →

　　Plenty of memory work will undoubtedly contribute to English study.

　　14.round the corner 替换 coming soon/ nearby

　　① The summer vacation is round the corner ( coming). Do you have any plans?

　　② Li Ming studies in a school round the corner (nearby).

　　15.come to light替换discover

　　The family were so pleased when they discovered the lost jewels. →

　　The family were so pleased when the lost jewels came to light.

　　16.have a ball替换have a good time/ enjoy oneself

　　After visiting the workshop, we went back to school. Every one of us had a ball ( had a good time ).

　　17.come up with替换think of

　　Jack is very clever. He often comes up with ( thinks of ) new ideas.

　　18.set aside替换save

　　Some students think that they should set aside some of their pocket money for books. (2004天津卷)

　　19.be of + n. 替换adj.

　　The products are of high quality (very good ) and are sold everywhere in China.

　　20.refer to 替换talk about/of, mention

　　The professor you referred to (talked about ) is very famous.

　　21.can not but / can not help but替换have to do

　　I could not but (had to) go home.

　　22.more often than not替换usually

　　More often than not (Usually), the meaning of many words can be easily guessed.

　　23.lest替换so that /in order that

　　I wrote down his telephone number so that I would not forget it. →

　　I wrote down his telephone number lest I (should) forget it.

　　24.be long for sth. / be long to do sth. 替换want to do sth./wish for

　　I want to see you very much. →

　　I am long to see you.

　　25.be caught up in/be crazy about/be absorbed in/be addicted to替换be interested in

　　He is caught up in ( very interested in ) collecting stamps.

　　26.more than替换very

　　① I’m very glad to learn that you are coming in September. →

　　I’m more than glad to learn that you are coming in September. ( NMET 2003 )

　　② If there is anything I can do for you, I would be more than glad to help. (2004全国卷)

　　27.perfect (ly) 替换good/ very well

　　He speaks perfect ( good ) English./ He speaks English perfectly ( very well ).

　　28.do sb a/the favor 替换help

　　Would you please do me the favor ( help me ) to turn down the radio?

　　29.the other day替换a few days ago

　　The other day my brother and I went to the cinema by bicycle. ( NMET 1997 )

　　30.in the course of替换during

　　In the course of (During) the mountain-climbing, please help each other and pay special attention to your safety.