1.be active in 在……活躍
【例句】We must be active in arousing the masses to action. 我們要積極發(fā)動群眾。
【總結(jié)】be active in sth/doing sth
【解析】let sb do sth. be active in 是固定短語。
2.be admitted into 被……錄取
【例句】I shall never forget the day when I was admitted into the party. 我永遠忘不了我被接受入黨的那一天。
【拓展】be admitted to加入，被接納
admitted into v. 許可進入(進入)
be admitted in audience 被接見
【詞語辨析】be admitted into/to的區(qū)別
into更加強調(diào)“進入”這一層意思，指被允許進入某一特定的場所。注意對象必須是具體的。(而不是抽象的)
The ticket admits you into that building.
to就更廣泛一些，包括被認可擁有某種權(quán)利
the prisoner is admitted to bail
也可以是被允許加入某個團體
You are admitted to our brotherhood.
3.be afraid of doing 擔心某事會發(fā)生
【例句】Don't be afraid of asking questions. 不要怕提問題。
【拓展】be afraid of sth./sb. 害怕某人(物)
be afraid that… 恐怕……
be afraid to do 不敢去做
I'm afraid not.(=I don't think so.) 口語中常用。
4.be after sth./sb. 找，追趕……
【例句】Are you absolutely positive that it was after midnight? 你是否有絕對把握認為那事是在午夜以后發(fā)生的?
【總結(jié)】be after 一般式表進行。
e.g……Mary is after a better job.瑪麗在尋找一個更好的工作。
【拓展】介詞after有“追趕，問候，效仿”之意：ask after問候，be after尋求，do(sth.)after學著做，go after設法得到，inquire after問候，look after尋找， run after追求，seek after追逐，take after長得像。例如：
Every afternoon he called to ask after his girl friend. 他每天下午都打電話問候他的女朋友。
The boy takes after his father. 這男孩長得像他父親。
The dogs went after the wounded deer. 一群狗在追趕那只受傷的鹿。
5.be along with 和……一起
【例句】Congratulations, happiness will be along with you forever 恭喜，快樂將永遠與你相伴
【拓展】get along with
①進展，走開，別胡扯
②在……方面有進展，進行
③友好相處，和睦相處，取得進展;get on well with與……相處的好