急剧上升：jump/ surge/ shoot up/ soar
下降
动词：fall to/ decrease to/ dip to/ drop to / go down to/ slumped to
名词：a fall in/ a decline in/a decrease in/ a slump in/ a reduction in
线图：
例：Direction: You should spend no more than 20 minutes on this task.
The graph in US dollars of a barrel of oil from 1995 with predictions to 2015.
最高点
Peak at/ reach the highest point of
主体段常用词汇：
第1句话
a) The overall trend/ general trend indicate that …
b) There is an overall +某种趋势的名词
第2句话之前
To be more exact = more exactly
To be more precise= more precisely
分步描述（起点+极值+终点）：
Pricesstarted attwenty US dollars a barrel during 1995, and then rose slightly to approximately twenty-four dollars in 1998.
The cost of a barrel then dropped for two years, to thelowest pointof about eighteen dollars during 2000. After that, there was a steady price rise, reaching about fifty dollars a barrel in 2006.
Summarize the main features and make comparisons where relevant.
开头段：转述原题+时态永远是一般现在时
改变关键词的词性
改变关键词的位置
同义词替代
灵活加入图表中的其它文字信息
The graph provides information about the changes of crude oil price per barrel in US dollars since 1995 and predicts the tendency ofthe oil price till 2015.
This was followed by a dramatic climb to one hundred dollars in 2009, and after that, the datacontinue to rise but slightly, finally reaching thehighest pointof 130 by 2015.
To be more specific = more specifically
上升
动词：rise to/ increase to/ go up to/ climb to
名词：a rise in/ an increase in/a growth in/ an upward trend in/ a boom in
例：The graphs below show the enrolments of overseas students and local students in Britain’s universities.
The graphs provide information about the proportions of overseas students and local students enrolled in Britain’s Universities from 1989 to 1999.
急剧下降：plummet / plunge
速度快
Sharp/ dramatic/ drastic/ rapid/ steep
缓慢
Gradual/ steady/ gentle/ slow
波动
Fluctuate around/ a fluctuation in
稳定在
Level off at/ level out at/ stabilize at/ remain constant/ remain steady at
开头段常用词汇：
The graph / the chart / the line graph shows …
The graph give past and future data concerning…
The graph demonstrates trends in/ an overview of/ trends in …
主体部分1+X句：第一句总结总体趋势，之后分步描述（起点，极值，终点）。
总体趋势：
Overall, oil prices increased by nearly four hundred percent from 1995 to 2010, with the most dramatic increase in the three years from 2006 to 2010 andthis rise ispredictedto continue into the future.
Shows: indicates/ unfolds/ displays/ reveals/ reflects/ relates/ illustrates/ demonstrates/ describes/ depicts/ portray/ outlines/ provide an overview of…