Mr. Koziatek is part of something pioneering. He is a teacher at a New Hampshire high school where learning is not something of books and tests and mechanical memorization, but practical. When did it become accepted wisdom that students should be able to name the 13th president of the United States but be utterly overwhelmed by a broken bike chain?

21.A broken bike chain is mentioned to show students’ lack of .

[A] practical ability [B] academic training

[C] pioneering spirit [D] mechanical memorization

分析：

首先分析题干， 题干中有 mention, show，这就是例证题的关键词。所谓例证题，核心问法在于某个例子被提及到是为了证明什么。 英文是： sth is mentioned to show that..，有些时候， mention可以用cite, quote来替换， show可以用explain, indicate或者是illustrate来替换。

其次，确定好例证题之后， 我们需要知道例子被用来证明的一般是观点， 所以答案就是观点句， 观点一般在例子之前，离例子最近的一句话。

进而我们确定答案句应该是： He is a teacher at a New Hampshire high school where learning is not something of books and tests and mechanical memorization, but practical. 很明显，作者不是要强调 mechanical memorization，而是强调practical，所以最后断定答案是A.

面有failure, may cause more harm than good, 明显讲不好的事情，所以最终确定答案为A.

总结： 在该题中笔者并没有对句子含义进行过多分析，因为在实际考试过程中，同学们很可能会遇到看不懂的文章，那如果文章看不懂，题就不用做了么? 非也，基础不够，技巧来凑。 但是技巧再好也是需要同学们有一定的词汇以及语法长难句基础的。 例证题的解题技巧核心在于首先先要识别出例证题，然后确定之后往前看一句找观点句即可。

以下一道题作为训练，同学们可以思考一下我们的态度词能排除的是哪两个， 剩下的两个态度词又应该选择哪一个呢?

This slim volume is packed with tips to help wage slaves as well as lottery winners get the most “happiness bang for your buck.” It seems most people would be better off if they could shorten their commutes to work, spend more time with friends and family and less of it watching television (something the average American spends a whopping two months a year doing, and is hardly jollier for it). Buying gifts or giving to charity is often more pleasurable than purchasing things for oneself, and luxuries are most enjoyable when they are consumed sparingly. This is apparently the reason McDonald’s restricts the availability of its popular McRib—a marketing trick that has turned the pork sandwich into an object of obsession.

23. McRib is mentioned in Paragraph 3 to show that .

[A] consumers are sometimes irrational

[B] popularity usually comes after quality

[C] marketing tricks are often effective

[D] rarity generally increases pleasure