我们看下来后会发现有且仅有红色部分是一些摧毁生物的具体例子，清道夫、细菌、化学侵蚀等等，至此我们完成了第2步，定位出了detail对应的原句。

　　第3步，到这句话的前面找它对应的claim，这道题里，它前面只有一句话，那让我们来验证一下这是不是这个detail所支撑的观点呢?

　　When one considers the many ways by which organisms are completely destroyed after death, it is remarkable that fossils are as common as they are.

　　(当一个人知道生物死后会被如此多的方式所完全分解毁灭，那他就会感叹世界上化石如此普遍有多不可思议)

　　看起来逻辑上可以成为生物被摧毁的例子所支撑的对象吧

　　那我们现在来做第4步，根据找出来的claim去选出较接近的选项

　　In paragraph 1, what is the author's purpose in providing examples of how organisms are destroyed?

　　○To emphasize how surprising it is that so many fossils exist

　　○To introduce a new geologic theory of fossil preservation

　　○To explain why the fossil record until now has remained incomplete

　　○To compare how fossils form on land and in water

　　选项1是不是就是我们找出来的claim的同义复述呀?答案就是它了!

　　All in all，只要把握好题型背后的原理，妈妈再也不用担心你做不好修辞目的题了!