在PTE中,无论是Summarise Spoken Text 还是 Re-tell Lecture的考题大都是从真实的讲座或者演讲中截取的,中间经常经常夹杂很多不同的环境音.很多同学都反映有时未必是听不懂,而是听不到. 鉴于此,墨尔本文波雅思PTE专门为大家总结了真实讲座的PTE练习音频,相比新闻音频来说,整体更加接近PTE考试的真题,内容方面,我们也会为大家提供考试中存在的近似题,最近我们会持续更新,敬请期待!
But also I tell you this because every place is a Serengeti, wherever you have essentially the three levels of the food chain of plants, producers that feed their herbivores that our intern food for predators for carnivores, you have the potential for keystone species, trophic cascades and sort of rules that I’ve been telling you about every place is a Serengeti. I mean that from if you found rosebush in your backyard with aphids and ladybugs to a neighborhood pond with predatory fish, crustacean and algae for the ocean shore with scallops, rays and sharks to tropical forests that African plain, these are rules, these are phenomena we see an operation across the globe, so if we can understand those rules, we have a shot at intervening and perhaps restoring places that are no longer intact.
