1. (2019六上·龙华期中) 听短文，判断句子正误。

1. （1） Mascots have been part of the Olympic Games since 1967.
3. （2） The mascots are the same for each Olympic Games.
5. （3） Mascots are fictional characters.
7. （4） They are fish, pandas, tigers and swallows.
9. （5） When you put the names of mascots together, they mean Welcome to Beijing.