① Recently , there has been a growing concern among the public over the topic of _______(主题词).
  ② This will definitely generate a variety of positive effects . ③ To begin with , _______(积极影响一). ④ Moreover , _______(积极影响二). ⑤ Last but not the least ,_______(积极影响三). ⑥ If there’s no such an activity , _______(后果).
  ⑦ To the best of my knowledge , it is sensible that we make our due contributions . ⑧ In the first place , we can _______(贡献一). ⑨ In the second place , we may _______(贡献二). ⑩ Finally , we are supposed to _______(贡献三). In conclusion , we have good reasons to believe that it will have a promising prospect .