1. (2019高一上·南京期末) 听下面一段独白，回答以下小题。

1. （1） What is the purpose of the speech?

   A . To forbid smoking in public. B . To warn people of cancer. C . To protect people from illnesses.
3. （2） Why is secondhand smoke a killer?

   A . It causes environment change. B . It causes illnesses and diseases. C . It causes more people to smoke.
5. （3） Why is smoke-free environment important?

   A . It leads more smokers to quit smoking. B . It allows people to use nicotine chewing gum. C . It cures people of different diseases and illnesses.
7. （4） How does the speaker make the speech convincing?

   A . By telling stories. B . By giving examples. C . By providing statistics.