在托福阅读备考中，想要快速的提升自己的托福阅读能力，除了不断的累积自己的词汇和句型之外，从TPO练习入手也不失为一个不错的方法。那么，在以下内容中我们就为大家带来TPO6托福阅读词汇，希望能为大家托福阅读备考带来帮助。
Paragraph 4: As he collected fossils from strata throughout England, Smith began to see that the fossils told a different story from the rocks. Particularly in the younger strata, the rocks were often so similar that he had trouble distinguishing the strata, but he never had trouble telling the fossils apart. While rock between two consistent strata might in one place be shale and in another sandstone, the fossils in that shale or sandstone were always the same. Some fossils endured through so many millions of years that they appear in many strata, but others occur only in a few strata, and a few species had their births and extinctions within one particular stratum. Fossils are thus identifying markers for particular periods in Earth's history. 【TPO6- William Smith】
9. The word “endured” in the passage is closest in meaning to
○vanished
○developed
○varied
○survived
答案： (4)
