“ Dreams may be more important than sleep. We all need to dream.” some scientists say. Dreams take up about one quarter of our sleeping time. People have several dreams each night.
     Dreams are like short films. They are usually in color. Some dreams are like old films. They come up over and over again. That may be the dreamer worrying about something. Dreaming may be a way of trying to find an answer.
     Some people get new ideas about their work from dreams. They may have been thinking about their work all day. These thoughts can carry over into dreams.
     Too much dreaming can be harmful. The more we sleep,the longer we dream. The mind is still at work when we dream. That is why we may have a long sleep and still wake up tired.

随着生活水平的提高，初中生肥胖症患者逐年增多．减少肥胖、增进健康、关爱生命日益引起人们关注．请你回答下列问题：

（1）如图表示每小时耗氧量与活动方式的关系．图中四种活动方式，如果活动时间相同，你认为最佳的减肥方式是____ 

（2小明同学患有肥胖症，原因之一是饭量很大．米饭的主要成分（淀粉）在小肠内最终消化成____ ，该物质由消化道进入血液的生理过程叫____ 

（3）小明采用了果蔬减肥的方式，每天只吃蔬菜和水果．

结果得了胃病﹣﹣胃酸过多，医生建议用“胃舒平”药物来治疗，“胃舒平”主要成分是____ （填化学式）

（4）坚持果蔬减肥法一段时间，小明经常会头晕，医院检查发现小明红细胞数目低于正常值，小明可能患了____ （填病症名称）

— I think buyers ________ spend too much time going to shops.