折线图

开头：改写题目
The following graph indicates the / compare the number of fish that was divided into four species during the period from 1982 to 2007.

第一段： 可以先来两个最明显的
In 1982, Atlantic cod had the dominant role in these kind of fishes, which dropped dramatically in the following 20 years. After reaching the bottom of 60000, it rose again and arrived at 100,000 in 2007.

**By contrast, swordfish was in the minority among these fishes, with the figure keeping stable at 10000 during these period.

第二段：
As to Tuna fish, It was just second to the Atlantic cod at the beginning, about 12500, after which it increased gradually , and then remained constant from 1992 to 2007. The number dropped to around 15000.

**There was an opposite trend in figure of ** Yellowfin. It's number began form …… and ended up to …….

结尾：
Overall，The number of Atlantic cod declined obviously in these period while other species were less changed.

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steadily

多用 figure

可以用 Had a dominant role 来表示最多
Coal plays a dominant part in china's consumption. 占主导地位

rise-rose-risen 上升
raise-raised-raised 提升 举起 raise your hand

constant 不断的 始终如一的