Conclusion for the presentation------Sylvia

At first, the topic we chose is good, which is close to our daily life. Secondly, we use the short vedio in the first few minutes to show the disadvantage of plastic bag. This idea is good and tell people the disvantages of plastic bag directly. On the other hand, we still have many drawbacks. When I give an introduction, I should also give people a general idea. In addition, I should pay attention to eye contact. I should have more eye contace instead of looking at PPT. I believe do the better in the next time.