100,000. Most experts accept that the most deadly earthquake in historical times occurred in Shanxi Province, China in 1556; about 830,000 lives were lost.

Step III Unit Diary

Get students to assess their learning over the unit. By completing Unit Diary students will learn what their difficulty is and what they should do to improve.

Step IV Homework

Post your view on how to English well on the Bulletin Board.

附件

I.本单元课文注释与疑难解析

1. In the last few decades, scientists have reached consensus and reported that human beings are causing changes in the Earth's climate - something previously seen as beyond our control.

在过去几十年里, 科学家一致认为, 人类一直在影响地球气候的变化，--这是一种原来被认为是人类所不能控制的现象。

consensus: n. a general agreement among the members of a given group or community一致,合意,交感

consensus politics代表多数人意见的政纲；

consensus management代表民意的管理

There is broad consensus (of opinion) in the country on this issue. 对这一问题举国上下（舆论）普遍一致.

The two parties have reached a consensus. 这两个政党达成了一致意见。

"beyond+名词"结构，"出乎......胜过......、范围、限度"。

常见的有：beyond belief (令人难以置信)， beyond one's reach （鞭长莫及），beyond one's control（无法控制），beyond our hope (始料不及)

The results have gone beyond our hopes. 结果超出了我们的期望。

2. Looking ahead, scientists believe that global warming could be one of the biggest