(36~37)
 You have a sweet tooth. You like chocolate, candy, and cake. You can't say no to them； you want themevery day. They may not be good for your body, but you can't help it. What's going on with you? Well, maybeit's not you； maybe it's your brain.
 With sugar in your body, your brain makes dopamine. With dopamine, you get good feelings, and yourbrain likes those feelings. But the dopamine in your brain is not there for long. It fades away over time. Yourbrain then wants more. It says to you, "You want good feelings； you want sugar." Then you want sweet foodagain. After some time, your brain loves sugar too much. From a small slice of cake to a big bag of chocolate,you want more and more and you can’t stop it. ☺ brain 大腦 dopamine 多巴胺 feeling 感覺 fade away 逐漸消失 over time 隨著時間
【題組】36. You have a sweet tooth means you__________.
(A) are kind to people
(B) have nice and clean teeth.
(C) like sweet food very much
(D) can’t eat chocolate or candy