上一期談過了“形式義異”的混淆詞，這期要談“義同形異”的常用詞。
1.Over / above
"Over"和"above"這兩個介詞的意思是在…….上面。“我們可以說(1)The sky is above our heads,也可以說(2)The sky is over our heads.我們也可以說(3)He Spread his handkerchief over his face.但不能說*(4)He spread his handkerchief above his face. 同樣的，可以說(5)John has travelled all over the world以及 (6)The King reigns over a great empire，但是(5)和(6)里的 "over"卻不可以"above"取代。
2.bring / take
"Bring"和"take"的意思相同，但用法并不一樣。
"Bring"指東西向說話的人的方向去，如：
(7) Bring me the book, please.
"Take"指東西向說話的人離去，如：
(8)Take the dictionary away from me .
由此可見，"bring"和"take"都表示東西要移動，只是方向不同："bring"向說話者而來;"take"向說話者而去。
3.Certain / sure
"Certain"和"sure"都含“確定”之意，只是在句中的用法有些不同。下列第九到十一的句子都對，但第十二的句子就不行了：
(9) We are certain to come to the party. / Tom is sure to come today.
(10) I am not certain whether I will be able to do it. / Are you sure that you will do it?
(11) It is certain that Jason will leave me.
*(12) It is sure that Jason will leave me.
4. rob / Steal
雖然這兩個字都是及物動詞，但用法不同，不可互相取代。
"Steal"的賓語通常是被偷的東西，如“錢，手表”之類。"Rob" 的賓語必須是“人”或“地方”。如：
(13) A thief entered her house and stole her valuables.
(14) A stranger robbed a passer-by.
(15) Who robbed the bank last night?
5.chase / follow
這兩個動詞，一個是“追逐”，另一個是“跟隨”，都是人家在前，他在后，但用起來不一樣;"chase"不但是動詞，也是名詞，如：
(16)The cat chased the mouse and caught it soon after.
(17)The puplis followed the teacher to the classroom.
(18)There was a thrilling car chase in the film.
(19) Social unrest follows widespread unemployment.
(20) I could not follow what he was saying.
