词汇表 underpins 构成，支持

decision-making 决策过程

dopamine （化学）多巴胺

released 被释放

reward 奖赏，奖励

strive （长期艰难地）奋斗、努力

pathway （生物体中的）一连串化学反应

spiral out of control 急剧失控

neuroscientists 神经科学家

track record 记录、业绩

psychiatric 神经病学的

schizophrenia 精神分裂症

测验 请听报道并回答下列问题。

1. When does the brain release dopamine, according to the text?

2. What could happen if the dopamine reward pathway in the brain goes out of control?

3. True or false? The UK is known for its world-leading achievements in brain research.

4. Which word in the text means 'unable to stop doing something'?

答案 1. When does the brain release dopamine, according to the text?

According to the text, the brain releases a chemical called dopamine whenever there is a reward, such as a pleasant taste.

2. What could happen if the dopamine reward pathway in the brain goes out of control?

If the dopamine reward pathway in the brain spirals out of control, the result could be compulsive behaviour and drug addiction.

3. True or false? The UK is known for its world-leading achievements in brain research.

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