1. (2019高三上·金山期末) 根据所听到的短文，选择正确的选项

1. （1） What is the passage mainly about?

   A . The impact of painful memories. B . New research on a pill and the argument about it. C . A way of wiping out painful memories. D . A proper method for changing memories.
3. （2） What effect can the drug tested on people produce?

   A . It can cause the brain to fix memories. B . It can stop people remembering bad experiences. C . It can prevent the body producing certain chemicals. D . It can wipe out the emotional effects of memories.
5. （3） Which of the following statements is true?

   A . Experts are not sure about the effects of the pill. B . The pill will certainly stop people's emotional memories. C . Taking the pill will do harm to people's physical health. D . The pill has already been produced and used by the American public.