单选题The main point of the passage is that special protective labor laws for women workers are__________
A． unnecessary because most workers are well protected by existing labor laws
B． harmful to the economic interests of women workers while offering them little or no actual protection
C． not worth preserving even though they do represent a hardwon legacy of the labor movement
D． controversial because male workers receive less protection than they require
B【解析】根据第三段和第四段的论述，我们可以得知作者的总体看法，即特别的劳工防护法并没有保护妇女的权益，故B项正确。A项与作者的观点明显相悖，所以不正确。C项从文中不能推知，故不正确。文中没有提到男性工人的保护问题，故D项也不正确。
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1The author implies that which of the following is characteristic of many employee health insurance plans?
A． They cover all the common medical conditions affecting men, but only some of those affecting women.
B． They lack the special provisions for women workers that proposed special labor laws for women would provide.
C． They pay the medical costs associated with pregnancy and childbirth only for the spouses of male em-ployees, not for female employees.
D． They meet minimum legal requirements, but do not adequately safeguard the health of either male or female employees.
3根据下面资料，回答题
Before a big exam, a sound night' s sleep will do you better than poring over textbooks. That, at least, is the folk wisdom. And science, in the form of behavioral psychology, supports that wisdom. But such behavioral studies cannot distinguish between two competing theories of why sleep is good for the memory. One says that sleep is when permanent memories form. The other says that they are actually formed during the day, but then "edited" at night,to flush away what is superfluous.
to tell the difference, it is necessary to look into the brain of a sleeping person, and that is hard. But after a decade of painstaking work, a team led by Pierre Maquet at Liege University in Belgium has managed to do it. The particular stage of sleep in which the Belgian group is interested is rapid eye movement (REM) sleep, when brain and body are active, heart rate and blood pressure increase, the eyes move back and forth behind the eyelids as if watching a movie, and bralnwave traces resemble those of wakefulness. It is during this period of sleep that people are most likely to relive events of the previous day in dreams.
Dr. Maquet used an electronic device called PET to study the brains of people as they practiced a task during the day, and as they slept during the following night. The task required them to press a button as fast as possible, in response to a light coming on in one of six positions. As they learnt how to do this, their response times got faster.What they did not know was that the appearance of the lights sometimes followed a pattern--what is referred to as "artificial grammar". Yet the reductions in response time showed that they learnt faster when the pattern was present than when there was not.
What is more, those with more to learn ( i. e. the "grammar", as well as the mechanical task of pushing thebutton) have more active brains. The "editing" theory would not predict that, since the number of irrelevant stimuli would be the same in each case. And to eliminate any doubts that the experimental subjects were learning as opposed to unlearning, their response times when they woke up were even quicker than when they went to sleep.
The team, therefore, concluded that the nerve connections involved in memory are reinforced through reactiva-tion during REM sleep, particularly if the brain detects an inherent structure in the material being learnt. So now, on the eve of that crucial test, maths students can sleep soundly in the knowledge that what they will remember the next day are the basic rules of algebra and not the incoherent talk from the radio next door.
Researchers in behavioral psychology are divided with regard to __
A． how dreams are modified in their courses
B． the difference between sleep and wakefulness
C． why sleep is of great benefit to memory
D．the functions of a good night' s sleep
