时态
考研阅读理解，选项的时态对于答案的正误产生直接性影响。一般说来
1、have done表示已经完成，事情已经做了;did也表示事情已经做过。
2、doing表示事情正在进行中。
3、will, may表示事情将要做，还没有做。
所以考生在考试中一定要看清楚原文句子的时态，否则，做题会因为时态的混淆选错答案。
【例如】From the passage we can infer that ?
A. reasoning has played a decisive role in the debate
B. creationists do not base their argument on reasoning
C. evolutionary theory is too difficult for non-specialist
D. creationism is supported by scientific findings
原文：and all would be well were reason the only judge in the creationism/evolution debate.
解题：这个句子是一个含有虚拟语气的句子，还原一下语序可以变为：
If reason were the only judge in the creationism/evolution debate, all would be well.
翻译：如果理性是神创论和进化论争论的唯一评判标准的话，那么认识事物都可以被很好的予以解决。
