A)Tony should continue taking the course.
B)She approves of Tony's decision
C)Tony can choose another science course.
D)She can't meet Tony so early in the morning
四个选项中共同(次数最多)信号有"Tony"(4次),"course"(3次),这说明会讨论Tony与功课的关系，而"continue","decision","choose"这些词进一步说明，可能会讨论Tony是否会继续选择某一功课
通过预览，听的时候就更有方向，而且很多单词由于事先看过，就能很容易听出来。很多情况下。共同信息越多的选项不但是预览的重点，而且还可以直接成为正确答案。如上面第一题A，D有重复信息而正确答案是D;第二题A和D有重要重复信息而A是正确答案，当然这不是绝对的但至少可以说明一点，预览共同信息很重要
section B
如果在短对话部分“竖看”短文部分“联想”就更加重要了。
2003年6月考题第三篇短文
18. A) A rescuer on the Golden Gate Bridge.
B) A professional diver.
C) A telephone operator.
D) A guard on the Golden Gate Bridge.
四个选项中"rescuer”,” professional diver”,” telephone operator”,” guard"都是讲一种人，所以可以联想到这个题目可能考一个人的职业，但是很有可能与"the Golden Gate Bridge"有关。
19. A) Someone has fallen off the bridge.
B)Someone on the bridge is being attacked.
C)Someone is threatening to destroy the bridge.
D)Someone on the bridge is attempting to kill himself.
四个选项中"fallen off the bridge " , "being attacked", "threatening to destroy the bridge”,” attempting to kill himself"都是讲一些负面的事情，而且这些事情都是发生在桥上，看来是重要的细节题。
20. A)Call the mother to come fight away.
B)Try to communicate with them first.
C)Help them to get out of their misty.
D)Remind them that they have children to take care of.
四个选项中 "Call the mother", "Try to communicate", "Help them","Remind them "这些动作让人联想到这个题目可能会涉及解决问题的方法。最后，把这几个选项联合起来，可以做一番联想:一个在"the Golden Gate Bridge"从事某种职业的人。在桥上遇到一个问题，最后用一种方法把它解决了。有了这个大概的方向以后，听这篇文章就会有感觉了。