“This level of acidity will increase in the future if we continue letting carbon dioxide into the atmosphere，”said Dr.Caldeira.

　　It is not totally clear what that means for living things in the sea，however.There are still some conclusions we can draw.

　　Most living things live near the surface，where the greatest PH change would be expected to occur，but deepocean life forms may be more sensitive to PH changes.

　　Coral reefs and other organisms may be particularly affected，the scientists believe.The acid in the seawater will react on their shells.It could be much more difficult to build the shells in water with a lower PH.

　　In recent years，some people have suggested storing carbon dioxide in the deep ocean as a way of solving the problem of global warming(全球变暖)．

　　But Dr.Caldeira said the way should now be reconsidered.

　　“Decades ago，most experts had thought that it was good for the carbon dioxide to go to the sea—because when letting carbon dioxide into the air we warm the earth；and when carbon dioxide goes to the sea，it reduces the amount of greenhouse effect(温室效应)．”

　　Now scientists might be in a dilemma as to what to do.On the one hand，this proposal can help solve the problem of global warming.But on the other hand，it will make the sea more acidic.

　　1．According to the researchers from California，why are the oceans getting more acidic？(no

【【译林湖南版】2011高考英语一轮复习提能训练：Module 1 Unit 2《Growing pains》（含解析）】相关文章：

★ 2017高考四川省广安市英语阅读理解一轮系列训练：30（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（12）及答案

★ 四川省2016届高考英语一轮复习课时作业（35） Module 5 Cloning 外研版选修6

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：Ⅱ卷强化增分练 训练3（含解析）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (76)

★ （安徽专用）2014届高考英语一轮复习方案 作业手册（3）模块1 《Unit 3 Celebration》（含解析） 北师大版必修1

★ 【浙江专用】2014届高考英语一轮复习课时作业(三十)选修6Unit 5《The power of nature》

★ （全国通用）2014届高考英语一轮单元复习 限时强化训练一

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (77)

★ 【优化方案】2017届高考英语二轮复习全国卷Ⅱ规范练：1（含解析）