在浩如烟海的参考书和模拟题中，雅思听力常会有“同义转换”类题目，出现频率之高足以引起各阶段的烤鸭注意!究竟何为同义转换?哪些地方会出现同义转换?同义转换会以什么样的形式出现?很多烤鸭对此并未形成完整的概念。针对这一问题，本文将以剑桥真题为依据，帮助考生对“同义转换”有一个清晰的了解与把握，从而扫除该类题型在听力中给我们造成的障碍。
同义转换，科学的解释是指人的视觉和听觉将接收的信号传递给大脑，经过大脑处理，再转换与原信号意义相同的另类信号和指令。这一定义延展至听力，原信号即为题干;而转换后的另类信号就是录音中的关键词和答案。我们的任务，是将题干和录音的关键词及答案进行识别和匹配，类似听力搭配题(matching)。
“同义转换”最常出现在雅思听力的选择题中。这一特点在听力选项上尤为突出，无论是正确选项还是干扰项，都常常出现同义转换。
如《剑7》Test2 Section4中的Question32
题目
32 Anita feels that the findings on handedness will be of value in
A helping sportspeople identify their weaknesses
B aiding sportspeople as they plan tactics for each game
C developing suitable training programmes for sportspeople
原文
I think Matthew’s findings will be beneficial, not so much in helping sportspeople to work on their weaker side, but more that they can help them identify the most suitable strategies to use in a given game.
在听力原文中，题干里的be of value变成了be beneficial， tactics变成了strategies.
而正确答案B中的aid被替换成了help.同时，对于干扰项A中的weaknesses这个单词，答案中也出现了一些相关的可互相替换的信息，如weaker side，但A选项的整体意思和听力原文中的表述不符，这也就是A选项的干扰点所在。
如《剑7》Test2 Section4中的Question31
题目
31 Anita first felt the Matthews article was of value when she realized
A how it would help her difficulties with left-handedness
B the relevance of connections he made with music
C the impressive size of his research project
原文
What Anita soon became struck by was the sheer volume of both observation and investigation he had done in many different sports.
听力原文中，the impressive size被替换成了the sheer volume，而关键词research project也被替换成了observation and investigation.
如《剑6》Test2 Section2中的Question14
14 The price of a first class ticket includes………………….
听力原文中，price被替换成了cost，而主动语态includes也被替换成了被动语态are included.
由上述例子可以看出，无论是填空题还是选择题，都会或多或少地遇到同义转换。下面，同样以真题为例，详细讲解贯穿雅思听力各个题型中“同义转换”主要的表现形式。