七. 逻辑错误须关注

与句子的上、下文不一致，甚至相矛盾，属于逻辑性错误。如称谓上的张冠李戴，人名、地名、时间、方位等方面的错误，常是这类错误的考查对象。例如：

The Smiths did his best to make me feel at home. (their)

First, let me tell you something more about myself. (去掉more)

… no way of setting the matter except by selling the set.Now someone at home reads instead. (everyone)

上述第一例中的主语是Smiths(史密斯夫妇俩)，因此后面的his不合逻辑。第二例中的more在这儿表“再”的意思，才开始告诉别人，怎么能说“再告诉你一些事”?第三例讲的是为了解决看电视时的争端，“我们”把电视机卖了;晚上没电视看了，所以与从前一样，大家又都读书了，所以该用everyone。

除了上述错误类型外，常考的错误形式还有：连词but, and, or和so的用法错误(可以归类为逻辑错误)，以及冠词的用法错误等。例如：

She was smiling but nodding at me. (and)

It looks as if my parents treat me as a visitor and a guest. (or)

We may be one family and live under a same roof. (the)