21.Most countries continue to prefer to trade with nearby nations.
镜像：Most countries do not continue to prefer to trade with nearby nations.
题干原样说是大部分国家继续偏好trade with nearby nations.
它的镜像就是大部分国家不继续偏好trade with nearby nations.
原文：Countries still trade disproportionately with their geographic neighbours.
原文写的是国家依然继续trade with neighbours. 所以出现的是原样，所以是正确。
22.Small computer components are manufacture in Germany.
镜像：Small computer components are not manufactured in Germany.
题干原样说small computer components是在德国生产。
它的镜像就是small computer components不是在德国生产。
原文：Most of the world's disk-drive manufacturing is concentrated in South-Asia.
很明显根本没出现原样或是镜像，所以是NG。
从上面的例子中我们看到，镜像只是简单、单纯的将题干加上否定。所以"增长的比international trade快"的镜像是"增长的不比international trade快"，而不是"增长的比international trade慢"。这样子我们就可以比较单纯的解决阅读的判断题。题目越难，这个方法的效果就越明显。