10. 以on开头的词组
（1）on duty 值日、值班
（2）on board 在船上，（在飞机、船等交通工具内）
（3）on occasion 有时，偶尔 = at times
（4）on purpose 故意地，特地
（5）on business 因公出差
（6）on an / the average 平均而言
（7）on the contrary 相反
（8）on the whole = in whole, in general 总体上
（9）on account of = on the ground(s) of ,because of, due to, owing to 因为
（10）on the basis of = based on 在…基础上
（11）on the point of 即将…的时候
On the point of needing help, his friends all left him.
11．以out开头的词组
（1）out of date过时的，废弃的
反义：up to date 直到最近的, 新式的, 现代的，最近的, 最新的
These items in the catalogue are out of date; we’d better get one up to date.
（2）out of order次序颠倒, 不整齐, 状态不好
反义：in order 整齐，状况良好，适宜
（3）out of shape 走样，不成样子
I have been wearing this pair of shoes for five years. They are out of shape.
反义：in shape 在外形上处于良好状态
（4）out of control 失控
（5）out of the way 反常，异常，奇特
He hasn’t done something out of the way yet.
（6）out of question 毫无疑问
反义：out of the question 不可能
12． 以with开头的词组
（1）with / in regard to至于，关于= with / in relation to, with respect to, as regards,
as to, as for
（2）with the exception of 除了= except
（3）with the purpose of 以…为目的
13．与matter 有关的词组
（1）as a matter of fact 实际上，事实上
（2）in the matter of = in matters of = on the matter of 在…方面，就…而论
14．叠词词组
（1）more and more 越来越（多）
（2）more or less 或多或少
（3）over and over 一再，再三
（4）side by side 肩并肩地
（5）sooner or later 迟早
（6）little by little 一点点
（7）step by step 一步步
15．与某些连词同义的词组
（1）in that = because
（2）in the event that= on condition that= provided that= if
（3）now that = since
（4）at the same time =but
（5） the moment = when
