these countries often feel sad.Without much sunlight,their bodies produce (36)vitamin D.Without enough vitamin D,their bodies make less of this special chemical which makes them feel good.To help the people in these countries (37),special "sunrooms"with artificial(人造的)lights have been built.People can go there and get“sunlight'”for (38)! Hot weather can make people angry because people feel uncomfortable when they are hot.In the same way,rain can make people angry (39)being wet can be unpleasant.As you can see,the weather can (40)the chemicals which control our brains.Through these ways,the weather can influence our emotions. 889these countries often feel sad. Without much sunlight , their bodies produce (36) vltamm D. Without enough vitamin D , their bodies make less of this special chemical which makes them feel good. To help the people in these countries (37) , special "sunrooms" with artificial (人造的) lights have been built. People can go there and get "sunlight" for (38) Hot weather can make people angry because people feel uncomfortable when they are hot. In the same way , rain can make people angry (39) being wet can be unpleasant. As you can see , the weather can (40) the chemicals which control our brains. Through these ways, the weather can influence our emotions. 889