结构：
Part1: As can be seen from/in the chart/diagram/table/graph.../ It can be seen from the chart/diagram/table/graph/figures/statistics that...
Part2: We believe that three reasons can account for this phenomenon./I believe that three reasons can account for this phenomenon./ To start with,…What's more…  Last but not least…In the end…  I will read more useful books because reading more books is not only interesting but also can make me learn more knowledge. I will try to spend more time in chatting with my parents and help them to do some housework. I am going to take part in the social activities so that I can know more about the society. If possible, I’d like to go to Shanghai for a visit.
Part3: In conclusion/ In short/Briefly/ In brief
加分句子：
From the chart we can see clearly that the average number of hours a student spends on Internet per week has increased from less than two hours in 1998 to nearly four hours in 2000, and then to 20 hours in 2004.
In my mind, the reasons why the overseas students are on the rise are as follows.
it is not difficult to find traveling an effective way to relieve people's stress and get relaxation
people prefer to go traveling rather than stay at home during holidays