Who appears in your dream isn‘t the only important thing. The more people who appear in you dreams the happier you are on awakening. It’s a case of the more the merrier.⑿ “The bad thing in a dream is to be alone； you feel worse，” Kramer explains. “You can relate this to wakening psychology， where being alone leads to more unhappiness. There is something about interacting with people that produces happiness.”
A number of researchers have examined the relationship of mood and performance. The doctors also checked into this relationship， and they have found some interesting correlations.
“We found that the more friendly， more aggressive， more clear-thinking， less sleepy， and surprisingly， the more unhappy you are， the better you perform. ⒀That last one -the unhappy - I can‘t explain，” Kramer says. Moreover， the level of a person’s moods and the level of his or her performance rise and fall together throughout the day.
Initially the two VA researchers worked only with men， because the dreams of men are far easier to study. Men and women dream differently. Indeed， sex is the biggest factor in accounting for differences in the people， activities， locations and feelings that occur in dreams.⒁ Dr. Kramer says， “When you compare men and women， you get a greater difference in dream content than when you compare， say， 20-and 60-year-olds， or black and white.”
（14）account for 解释…的原因
Last year the VA researchers began studying the relationship of sleep， dreams， and mood in women. This work is continuing， but the initial findings reinforce what they had found in men.
“Overall， the women are just like men，” Kramer says.
被动语态的基本结构为： be + 及物动词的过去分词
例如：His room is being painted.
My wallet was stolen a week ago.
The book has been translated into many languages.
This work should be done as soon as possible.
At its best， daydreaming was considered a compensatory substitute for the real things in life.
The work should be finished as soon as possible. 应尽快把工作完成。
Resistance is measured in Ohms. 电阻是以欧姆度量的。
A rare element was found last year. 去年发现了一种稀有元素。
Such data can be depended on. 这些数据可靠。
The children are taken care of by their mum. 妈妈照料孩子们。
It is hoped that … “希望…”
It is reported that … “ 据报道…”
It is said that … “据说…”
It is supposed that …“据猜测…”
It must be admitted … “ 必须承认…”
It must be pointed that …“必须指出…”
It is asserted that … “据声称…”
It is believed that …“人们认为…”
It is generally considered that …“人们普遍认为…”
It is well known that …“ 众所周知… ”
It was told that …“有人曾说…… ”
It has been found that …“ 人们已经发现…… ”