最近几年越来越多的大学生加入打工的队伍，请你结合下表，就这一现象写一篇短文。
现象
1．根据最近调查，约25％的大学生打零工。
2．在暑假，这一数字将增至72％。
3．大学生常做的零活有：家教、服务员、售货员等。
原因
4．想赚钱支付一部分日益增长的学费。
5．想经济上独立，买一些自己想买的东西。
意义
(内容由考生自己拟定)
6．
7．
注意：1．词数：120左右。文章的开头已为你写好。
2．参考词汇：调查survey；家庭教师tutor；学费tuition；经济地economically；视野outlook
According to a recent survey，
According to a recent survey，about 25 percent of college students have a part -time job 。Buring summer vacation，this figure will increase to 72 percent 。College students are working as tutors ，waiters or salesmen。
Why do they want part-time jobs？First ，they want to earn money to help cover their increasingly higher college tuition。Second they hope to be economically independent and buy whatever they want 。
In my opinion ，by doing part-time jobs ，college students can gain some society experience and broaden their outlook 。What's more ，part -time jobs can provide them with a valuable chance opportunity to know the outside world 。So it's of great significance for college students to do part -time jobs。