课程咨询

托福考试网 托福资料下载 托福资讯 0元讲座 水平测试

托福考试练习
新东方在线 > TOEFL > 托福阅读 > 正文
托福培训

扫码免费领资料

内含托福全科备考资料

更有免费水平测试及备考规划

托福培训

扫码关注掌握一手留学资讯

回复XDF免费水平测试

录播精讲 直播课HOT

托福阅读材料之Crabs Clean Up

2015-01-14 17:22:31来源：网络

　　2015年托福考试已经来临，对于每一位参加托福考试的同学来说都是新的开始，那么我们对于托福听说读写都需要采取怎样的复习方法?这四项又需要注意些什么呢?我们分别谈一下。下面是新东方在线托福小编整理的托福阅读材料之Crabs Clean Up，供同学们参考!

　　Researchers have discovered that tiny crabs about a third of an inch (one centimeter) long take care of a huge job. They actually help keep coral reefs alive. And that's important, because more than nine million species depend on coral reefs around the world for food and shelter.

　　These tiny crabs, called trapeziid crabs, accomplish a lot despite their size. Particles of dirt, or sediment, are bad for living coral.

　　"If sediment builds up on the coral, the weight of it can damage the coral," explains researcher Hannah L. Stewart of the University of California Santa Barbara's Marine Science Institute. "Sediment can also block the light healthy coral needs."

　　Like many living things, the crab and the coral have a symbiotic relationship; that means they each help the other. The coral provides a home for the crab, and the crab protects the coral.

　　"An organism doesn't just survive on its own," says Stewart. "There are a lot of interactions that go into the success of every organism. That's the web of life."

　　以上就是新东方在线托福小编整理的托福阅读的相关内容，更多资讯敬请访问新东方在线托福频道，祝大家取得理想的成绩!


本文关键字: 托福阅读材料之Crabs Clean Up

托福辅导

关注新东方在线托福

托福机经·Official题目练习

考前重点突破·听说读写海量资料

更多资料

关注新东方在线托福，
回复【XDF】获取大礼包

托福辅导
  • 1.打开手机微信【扫一扫】，识别上方二维码；
  • 2.点击【添加】，回复对应关键字领取学习资料。
更多>>
更多内容

免费获取托福备考大礼包

微信扫描下方二维码 立即领取

托福辅导
更多>>
更多公益讲座>>
更多>>
更多资料
托福TPO 托福听力练习 托福口语练习 托福阅读练习 托福写作练习
我要
反馈 返回
首页
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10