1. (2023高二下·藤县开学考) 听材料，回答问题。

1. （1） What is the speaker mainly talking about?

   A . The importance of regular exercise.   B . The health risks of being overweight. C . The influence of certain food on health.
3. （2） What does the speaker say about the audience?

   A . They often go to the gym.    B . They are not heavy and fat.      C . They don't have enough exercise.
5. （3） How does added sugar affect our health according to research?

   A . It brings us more energy.     B . It increases our chances of getting ill.  C . It takes away energy from our bodies.
7. （4） What is the speaker's advice in the end?

   A . Trying to remove added sugar from daily diet.  B . Shopping less at supermarkets.  C . Eating sugar-free foods only.