19.The result of the research suggests that ________.re
D. taking no action before difficulty may result in success
B
Seen from space the Earth is covered in a blue mantle. It is a planet on which the continents are dwarfed(相形见绌)by the oceans surrounding them and the vastness of the marine area.de necessary sources of protein, energy, minerals and other products of use the world over and the rolling of the sea across the planet creates over half our oxygen, drives weather systems and natural flows of energy and nutrients around the world, transports water masses many times greater than all the rivers on land combined and keeps the Earth habitable.
Without the global ocean there would be no life on Earth.
It is seriously worrying, then, that we are damaging the oceans on a scale that is unimaginable to most people.
We now know that human activity can have serious influences on the vital forces governing our planet. We have fundamentally changed our global climate and are just beginning to understand the consequences of that. As yet largely unseen,but just as serious,are the influences we are having on the oceans. A healthy ocean has diverse ecosystems and strong and healthy habitats. The actual state of our oceans is a far cry from this natural level.being exerted both directly and indirectly on ocean ecosystems the world over. Consequently ecosystems are collapsing as marine species are driven towards extinction and ocean habitats are destroyed. With the decrease and removement of their diversity, ocean ecosystems are losing their natural recovery.
【福建省2014高考英语一轮复习 作业手册(27)(含解析)新人教版】相关文章:
★ 湖南省岳阳市2014高考英语一轮单项选择训练题(12)及答案
★ 2017届高考英语二轮复习大题冲关秘籍短文改错:体验真题(含解析)
★ 【北京专用】2014届高考英语一轮复习方案课时作业:选修7 Unit 1 Living well
★ 2014届高考英语一轮复习课时作业(四十八)选修8Module 6《The Tang Poems》(外研版)
★ 北京市2014高考英语一轮复习 练习手册(19)必修4 Unit 4 Body language(含解析)新人教版
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 3 B卷 Word版含解析
★ 安徽省淮南市2014高考英语一轮单项选择及文章训练(1)及答案
★ 安徽省淮南市2014高考英语一轮单项选择及文章训练(7)及答案
★ 【课堂新坐标】2017届高考英语(通用版)二轮复习完形填空专题训练:技法3 利用词语习惯搭配解题(含解析)
★ 【北师大版】2014届高考英语一轮复习指导课时作业:Unit 11 B卷 Word版含解析
最新
2017-04-24
2017-04-24
2017-04-24
2017-04-24
2017-04-21
2017-04-21