A．不可能写的很好，关键是要很稳地写清楚。
B．概括一些内在关联性或原因推测作为总结。
描述曲线：
reach it peak/top/bottom/valley, remain the ame, level off/taperoff, fluctuate wildly/mildly数据组成：
The total number i 100. Of thi figure, 10 are A, 20 are B and 70are C. Therefore, C account for the greatet number.数据对比：
A occupie only 5%, which tand in marked contrat to the 95% of B数据升降：
loe it attraction/become a general favorite数据下降：
10 percent of people preferred to do A in 1200, but only 5 percent of people tuck to the ame preference in 1300.最低数据：
Each year/month, there were at leat 5 people involved in …数据接近：
The year 1200 aw the leat difference between A and B.数据关联：
To um up, the relation hip between A and B appear (inverely)proportional.同向变化：
The trend continue through out the graph.事物归类：
be categorized under 10 heading/be divided into 10 tage两张图表：
the firt piece of data/ the econd et of date数据翻倍：
A. It i 10 in 1200, but 30 in 1300,increaed three time.
B. From jut 100 in 1200 to over 4 time thi amount in 1300.[由Www.haozuowen.com整理]
比较速度：
A. In 1200, increae wa pectacular, compared with 1300.
B. A how the greatet increae. B alo how an increae but it’ not adramatic.
阐述原因：
A．People’ preference for bicycle reflect public diatifaction with buervice.
B．From the difference between... ,we can ee the change in our ociety and…
C．It appear that XXX directly affect the XXX-audiy.com
D．Obviouly, people’ inclination to go out contribute to the decreae.
展望未来：
A．There might be a tendency of decreaing in the future.
B．The tendency would be continuing becaue…