根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。
For centuries, people have wondered about the strange places that they seem to visit in their sleep. 【小题1】 However, they have been valued as necessary to a person’s health and happiness.
Historically people thought dreams contained messages from God. It was only in the twentieth century that people started to study dreams scientifically believing that they tell about a person’s character. 【小题2】 He believed that dreams allow a person to express fantasies or fears, which would be socially unacceptable in real life.
The second theory to bee popular was Carl Jung’s pensation theory. Jung, a former student of Freud, said that the purpose of a dream is not to hide something, but rather to municate it to the dreamer. 【小题3】 Thus, people who think too highly of themselves may dream about falling; those who think too little of themselves dream of being heroes.
Using more recent research, William Domhoff from the University of California found that dreaming is a mental skill that needs time to develop in humans. 【小题4】 Until they reach age five, they can not express very well what their dreams are about. Once people bee adults, there is little or no change in their dreams. The dreams of men and women differ.
The meaning of dreams continues to be difficult to understand. 【小题5】 If you dream that a loved one is going to die, do not panic. The dream may have meaning, but it does not mean that your loved one is going to die.A．Dreams make up for what is lacking in waking life.B．However, people should not take their dreams as reality.C．They have been considered as meaningless nighttime journeys.D．It gives scientists chances to better understand human mind.E．Children do not dream as much as adults.
F．They think their mind is trying to tell them something.
G．First, there was Sigmund Freud’s theory.C
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(答案→)C
解析：本文主要讲述了人们对梦境的研究理论。
【小题1】C 根据下一句However, they have been valued as necessary to a person’s health and happiness.这里的however说明前一句与这句的意思相反，认为Dreams是无意义的事情。故C项符合上下文。
【小题2】G 接下来的He believed that dreams allow a person to express fantasies or fears, which would be socially unacceptable in real life都是的Sigmund Freud理论的内容，故G项正确。
【小题3】A 根据下两句Thus, people who think too highly of themselves may dream about falling; those who think too little of themselves dream of being heroes.说明在现实生活里很成功的人在梦里可能会经历失败。梦里的事情可能是与现实里完全相反的内容。故A项正确。
【小题4】E 根据下句Until they reach age five, they can not express very well what their dreams are about.说明很多孩子的梦比较少，直到长大以后才后悔成年人一样做梦。故E项符合上下文。
【小题5】B 根据最后一句The dream may have meaning, but it does not mean that your loved one is going to die.说明我们不要把梦境当成真的事情，B项符合上下文语境。