老托福阅读真题passage 41-智课教育旗下智课教育.pdfVIP

智 课 网 托 福 备 考 资 料 老托福阅读真题PASSAGE 41-智课教育旗下智课教育 本文和大家分享的是老托福阅读真题PASSAGE 41，练习真题是最 重要也最有效的复习方法，大家在复习托福阅读考试的时候一定要对真 题重视起来。 托福阅读 的思维方式就是托福阅读的出题方式，只有掌握了这种思 维方式，才有可能在做题之前，预测到新托福阅读题的出题形式和特点 ，为找答案节省时间。老托福阅读试题的核心价值，在于其最贴近真题 的阅读思维方式。此外老托福阅读真题比新托福IBT阅读文章要短，比 较容易适应。这也是大家在备考托福的时候非常重要的一点。因为前期 的入手如果能从容易的开始，就会形成一个循序渐进的过程方式，让大 家的练习有一个提高的过程 。 既然老托福阅读试题有这样的效果，那我们如何利用那有限的真题 来达到锻炼自己的目的呢？事实上这就一个办法，就是坚持。本期为大 家推荐老托福阅读的真题PASSAGE 41，附有原文及答案，希望对托福考生备考有所帮助。 Biological diversity has become widely recognized as a critical conservation issue only in the past two decades. The rapid destruction of the tropical rain forests, which are the ecosystems with the highest known species diversity on Earth, has awakened people to the importance and fragility of biological diversity. The high rate of species extinctions in these environments is jolting, but it is important to recognize the significance of biological diversity in all ecosystems. As the human population continues to expand, it will negatively affect one after another of Earths ecosystems. In terrestrial ecosystems and in fringe marine ecosystems (such as wetlands), the most common problem is habitat destruction. In most situations, the result is irreversible. Now humans are beginning to destroy marine ecosystems through other types of activities, such as disposal and run off of poisonous waste; in less than two centuries, by significantly reducing the variety of species on Earth, they have unraveled cons of evolution and irrevocably redirected its course. Certainly, there have been periods in Earths history when mass extinctions have occurred. The extinction of the dinosaurs was caused by some physical event, either climatic or cosmic. There have also been less dramatic extinctions, as when natural competition between species reached an extreme conclusion. Only .01 percent of the species that have lived on Earth have survived to the present, and it was largely chance that determined which species survived and which died