26、根据以下内容回答26-45题:
Exchange a glance with someone，then look away．Do you realize that you have made a statement?Hold the glance for the second longer，and you have made a different statement.Hold it for three seconds，and the meaning has changed again．For every social situation，there is a Dennissible time that you can hold a person’s gaze without being intimate，rude or aggre- ssive．If you are on an elevator，what gaze．time are you permitted?To answer this question，consider what you typically d0．You are likely to give other passengers a quick glance to size them up and to assure them that you mean flo threat．
Since being close to another person signals the possibility of interaction，you need to give a signal telling others you want to be left alone．So you cut off eye contact，what sociologist Erv-ing Goffrnan calls“a dimming of the lights”you look down at the floor，at the indicator lights，anywhere but into another passenger's eyes．Should you break the rule against staring at a stran-ger on an elevator，you will make the other person exceedingly uncomfortable，and you are likely to feel a bit strange yourself．
If you hold eye contact for more than three seconds，what are you telling another person?Much depends on the person and situation，For instance，a man and woman communicate interest in this matter．They typieally gaze at each other for about three seconds at a time，then drop their eyes down for three seconds，before letting their eyes meet again．But-if one man gives another man a 3-second—plus stare，he signals“I know you，I am interested in you，”or“you look peculiar and I am CUriOUS about you．”This type of state ohen produces hostile feel—ings．
It can be inferred from the first paragraph that__________ ．
A．every glance has its significance
B．staring at a person is an expression of interest
C．a gaze longer than three seconds is unacceptable
D．a glance conveys more meaning than words


27、If a person wants to be left alone an elevator，the best thing to do is__________ ．
A．to look into another passenger's eyes
B．to avoid eye contact with other passengers
C．to signal that he is not a threat to them
D．to keep a certain distance from other passengers


28、The phrase“a dimming of the lights”most probably means__________ ．
A．closing one’s eyes
B．turning off the lights
C．ceasing to glance at others
D．reducing gaze—time to the minimum


29、If one is looked at by a stranger for too long，he tends to feel__________ ．
A．depressed
B．uneasy
C．curious
D．amazed


30、The passage is mainly about__________ ．
A．the limitmion of eye contacts
B．the exchange of ideas through eye contacts
C．proper behavior in different situation
D．the rule of eye contact in interpersonal communication

31、根据以下内容回答31-50题：
American society is not nap friendly．“In fact，”says David Dinges，a sleep specialist at the University of Pennsylvania School of Medicine，“there’S even a prohibition against admitting we need sleep．”Nobody wants to be caught napping or found asleep at work．To quote a proverb：“Some sleep five hours，nature requires seven，laziness nine and wickedness eleven．”
“Wrong．The way not to fall asleep at work is to take naps when you need them．We have to totally change onr attitude toward napping．”says Dr．William Dement of Stanford University，the god-father of sleep research．
Last year a national commission led by Dement identified an“American sleep debt”which one member said was as important as the national debt．The commission was concerned about the danger，of sleepiness：people causing industrial accident or falling asleep while driving．This may be why we have a new sleep policy in the White House．According to recent reports，president Clinton is trying to take a half-hour snooze(打瞌睡)every afternoon．
About 60 percent of American adults nap when given the opportunity．We seem to have“a mid-afternoon quiet phase”(also called“a secondary sleep gate”)．Sleeping 15 minutes to two hours in the early afternoon can reduce stress and make US refreshed．Clearly，we were born to nap．
We，Superstars of Snooze，don’t nap to replace the lost shut-eye or to prepare for a night shift．Rather，we“snack”on sleep，whenever，wherever and at whatever time we feellike it．I myself have napped in buses，ears，planes and on boats；on floors and beds；and in libraries，Offices and museums．
It is commonly accepted in American society that too much sleep is__________ ．
A．unreasonable
B．criminal
C．harmful
D．costly


32、The research done by the Dement commission shows that Americans__________ ．
A．don’t like to take naps
B．are terribly worried about their national debt
C．sleep less than is good for them
D．have caused many industrial and traffic accidents


33、The purpose of this article is to__________ ．
A．warn us of the wickedness of napping
B．explain the danger of sleepiness
C．discuss the side effects of napping
D．convince the reader of the necessity of napping


34、The“American sleep debt”(Line l，Para．3)iS the result of __________．
A．the traditional misconception the Americans have about sleep
B．the new sleep policy of the Clinton Administration
C．the rapid development of American industry
D．the Americans’worry about the danger of sleepiness


35、The second sentence of the last paragraph tells US that it is__________ ．
A．preferable to have a sound sleep before a night shift
B．good practice to eat something light before we go to bed
C．essential to make up for cost sleep
D．natural to take a nap whenever we feel the need for it