12个单词： 趋势描述单词注意事项上升 grow, climb,soar
1.其中“soar”和“sink”为极限词汇，不能添加任何修饰; 2.在句子和文章中，事实上很少用到上述动词的原型，相反使用最多的是它们的“过去式”，以及对应的名词;
3.上升和下降需要和数字建立连接，可供选择的介词to, by, of To 配合动词和名词，表示“达到” By/of 表示“变化了”;by跟在动词后面，而of跟在名词后面
下降 rop, fall,sink 平稳 stay unchangeat+不变的值 波动 varybetween…an…(两个极值; 名词 fluctuationbetween…an… 程度 ramatically(significantly)剧烈的;progressively(graually)逐渐的;slightly (slowly)缓慢的表中所提供的单词均为“副词”，需搭配动词使用;如果需要搭配、修饰“名词”，则上述的词汇应变为“形容词”，即：ramatic, progressive, slight
3个重要的句式：
例句：在2005年到2006年间，当澳洲当地的水费usage charge增加了每千升per kiloliter 0.25元。(看看下面的三种不同表达形式)
(1) 主谓句(强调量词的变化)
The usagecharge in Australia grew by $0.25 per kiloliter uring 2005-2006.
(2) 主谓宾句(强调量词的变化，词性变化)
The usagecharge in Australia ha a growth of $0.25 per kiloliter between 2005 an 2006.
(3) 被动句(强调变化本身)
A growth of$0.25 per kiloliter was foun in the usage charge in Australia over 1 year toYear 2006.
NB: 表示时间的变化，常用的手法
From…to…;between…an…; uring…-…; for/over时间差to终止时间
4个连接词：
第一种：一个对象在不同时期的变化(时间变化)，before /, afterwhich
第二种：不同对象的比较 similarly (=The similar pattern is foun in…) / however (In contrast,)
例题： 在过去的2年中，中国的GDP(Gross Domestic Prouction)增长了10%，预计在明年GDP仍可能增长8%左右。但是，日本的GDP在过去的2年中，基本呈现下降趋势，而且预计明年下降得更猛烈。
In the recent 2years, GDP of China has grown by 10%， after which itis estimate to climb by 8% next year. In contrast, a ropping tren, in thelast 2 years, has been foun in that of Japan, before it is preicte to bemore ramatic。
当不是特别能够确定图表的具体数值时，我们可以在数字前加上about, aroun,nearly, approximately, or so等一些比较模糊的副词修饰。
看一道例题：
6.5分：During 1979- 1999, visits overseas by UKresients, about 12 million in 1979, ha a growth to nearly 52 million. Thesimilar pattern was foun in visits to the UK by international resients fromaroun 10 million to 30 million.
7分：UK resients, about 12 million in 1979, haa growth to nearly 52 million. The similar pattern was foun in visits to theUK by international resients from aroun 10 million to 30 million, butclimbing slower than the former.
8分：In 1979, visits abroa by UK resients, 2million more than those to the UK by overseas resients, was 12 million, afterwhich a ramatic rise to nearly 52 million was foun in 1999, when the similarpattern was seen in the visits to the UK by international resients to nearly30 million.
