1. (2023高三下·吉林月考) 听材料，回答问题。

1. （1） How does the man feel about the topic of today's lecture?

   A . Serious. B . Interesting. C . Pressing.
3. （2） What is the most urgent pollution issue according to the man?

   A . Noise pollution. B . Plastic pollution. C . Air pollution.
5. （3） What's the woman's suggestion on how to deal with plastic pollution?

   A . All countries take strong measures. B . More related lectures should be given. C . People gradually reduce the use of plastic.
7. （4） What are the speakers mainly talking about?

   A . The seriousness of plastic pollution. B . The source of noise pollution. C . The causes of air pollution.