table 表格，chart 图表，diagram 图解/示意图，figure图形/数字，describe 描述，tell 告诉，show表明， represent 描绘/展示，indicate 显示
（1）表示上升或增加的：rise, increase, go up
（2）表示下降或减少的：decrease, fall, reduce, decline, drop, go down
（3）表示变化特点的：sharply 急剧地，quickly 迅速地，rapidly 快速地，dramatically 戏剧性地，slowly缓慢地，gradually 逐渐地。
（4）表示比较的：compared different from, difference between, while, contrary, however, more than, less than。
I have recently made/conducted/carried out a survey about... among...
Last week, we made/conducted/carried out asurvey on…
A survey has been made/conducted/carried out on…
The above table/chart/graph shows that…
As can beseen from the pie chart...
From thetable/chart/graph we can see…
There are several reasons that account for this phenomenon.
A number of factors account for (contribute to/lead to/result in) the change (phenomenon/increase)．
The main reason for such a change is...
Personally/In my opinion/As far as I’m concerned/From my point of view...
It is high time that we...
These days, a social organization is conducting a survey of the most useful mobile apps for senior high school students.As can be easily seen from the above figure,the number of the students participating in the survey who chose social app and game app accounts for 45% and 32% while those who chose learning app and others accounts for only 12 % and 11%.It is not a good trend but a disturbing one. What is the real reason behind it?
As far as I’m concerned,with the rapid development of mobile technology,a wide variety of phones are available at a less expensive price within people of all ages,particularly for high school students. For one,it not only provides them with easy access to knowledge on the internet but also makes it much easier for them to communicate with each other whenever and wherever they want.
Nevertheless, in my opinion,for students what matters most at present is that they should try their hard to focus on study rather than social interaction and games,using their learning apps to the full.Only when you realize it is wrong to do so can you spare no efforts to make gradual progress in study and achieve success in the end.