Loewi’s experiment gives some insight into using dreams to produce creative solutions.Inhibitions (拘谨) are reduced during dreaming，which may be especially useful in solving problems that require a fresh point of view.

　　Being able to take advantage of dreams for problem solving is improved if you “set” yourself before retiring.Before you go to bed，try to think intently about a problem you wish to solve.Steep yourself in (潜心于) the problem by stating it clearly and reviewing all relevant information.Then use the suggestions listed in the previous section to catch your dreams.Although this method is not guaranteed to produce a novel solution or a new insight，it is certain to be an adventure.About half of a group of college students using the method for a week recalled a dream that helped them solve a personal problem.

　　41．The main idea of this passage is that________.

　　A．very little is really known about the meaning of dreams

　　B．it is possible to “catch” one’s dreams by planning before going to sleep

　　C．dreams can be useful in producing creative solutions to one’s problems

　　D．Loewi’s experiment helped in the study of transmission of nerve impulses

　　42．The first paragraph is mainly organized by________.

　　A．classifying types of experiments

　　B．summarizing the work of one researcher

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