26、根据以下内容回答26-45题：
“Too many people view their jobs as a five-day prison from which they are paroled every Friday，”says Joel Gook man，founder of The Humor Project，a humor-consulting group in Saratoga Springs，N．Y．Humor unlocks the’office prison because it lets adults bring some of their childlike spirit to the job．
According to Howard Polli0，professor of psychology at the University of Tennesse，Knox-ville，an office with humor breaks is an office with satisfied and productive employees．Pollio conducted a study that proved humor can help workers excel at routine production task．Employees perform better when they have fun．
In large corporations with a hierarchy of power，there is often no outlet for stress，“Every company needs underground ways of、poking fun at the organization，”says Lynn Mark，a speak-er on workplace humor for St．Mary’S Health Center in St．Louis．
Kodak’S Rochester，New York branch discovered a way for its 20 000employees to uncork their bottomed-up resentments．Their 1 000．square．foot“Humor Room”features a“toy store．”Among the room's many stress-reducing gadgets，the main attraction is a boss doll with Velcro antis and legs．Employees can dismantle the boss，as long as they put its arms and legs back in place．
Every April Fool’S day，Sun Micro systems of mountain View，Calif．，concocts(虚构)an intricate hoax(恶作剧)aimed at one of its employees．One year，CEO Scott McNealy’S office was decorated as a one-hole，par—four miniature golf course．The annual gag does so much for encouraging teamwork and boosting morale that the company has set aside an April Fool’s hoax budget．
Sandy Cohen，owner of a graphic print-production business，created“The Quote Board” to document the amusing phrases people say when under strict deadlines．“When you’re under stress，you say stupid things，”says Cohen．“Now we just look at each other and say，That’S one for the Quote Board!”
An office is compared to a five-day prison because__________ ．
A．the door of an office is always locked
B．the office workers have no freedom
C．there iS no work break in the office
D．the atmosphere in the office is boring


27、The humor ifi the office can mainly__________ ．
A．reduce the working hour
B．make the employees relaxed
C．improve the relationship between the boss and the workers
D．improve the relationship among the employees


28、The example of the boss doll implies that the employees__________ ．
A．don’t have enough after-work activities
B．are angry with their boss
C．are childlike
D．are people with humor


29、Which of the following even has special fund for amusement?
A．St．Mary’s Health Center
B．Kodak’s Rochester
C．Sandy Cohen’s Company
D．Sun Microsystem


30、he word“amusing”in the last paragraph most probably means__________ ．
A．funny
B．strange
C．elegant
D．casual


31、根据以下内容回答31-50题：
No one knows for sure why birds migrate．One theory of migration says that ancient birds of the northern part of the earth were forced southward during the Ice Age，when ice covered large parts of Europe，Asia and North America．As the ice melted，the birds came back to their homelands，spent the summer，and then went south again in winter．Gradually，these comings and goings became habits，and birds now migrate though much of the ice has gone．
Another theory proposes that the ancient home of all modern birds was the tropic areas．There lived so well that the region became overcrowded．Many species had to move northward．During the summer，these birds found plenty of room and food．In winter，however，food be-came scarce and they had to return to the south．
A newer theory is that increasing daylight stimulates certain glands(腺)in the bird’s body and prepares it for migration．One scientist is able to make birds migrate in midwinter by expo-sing them for two months to artificial daylight．Recoveries of marked birds indicate that they fly north as soon as they are set free．The conclusion is that the urge to migrate is determined by changes in the bird’s body which take place under seasonal changes in the length of daylight．
This theory would account for the fact that not all birds migrate at the same time．Each sDecies seems to have its own schedule．The theory would also account for the regular time and rou‘tes of migration．Birds arrive at a given place year after year．Unfavorable weather delays them only a few days．Total hours of daylight，rather than weather，start them on the way．
How birds find their way to the same place year after year and why they follow their own Darticular route are still mysteries．They evidently do not follow known landmarks，for many young birds migrate alone without the help of experienced adults．
We can conclude from the first paragraph that__________ ．
A．during the Ice Age，the whole Europe was covered with ice
B．the south used to be the homelands of all birds
C．scientists can confidently explain why birds migrate now
D．migration of birds can be explained by the change of ice on earth


32、The birds mentioned in the third paragraph fly north in midwinter because__________ ．
A．they are specially trained by a scientist
B．they are affected by seasorfal changes
C．there is a change in their body temperature
D．they are exposed to extra daylight


33、The phrase“account for”(1ine 2，Para．4)most probably means__________ ．
A．indicate
B．explain
C．prove
D．provide


34、Which of the following can NOT be inferred from the passa．ge?
A．Birds do not migrate at the same time．
B．Birds usually follow regular routes of migration．
C．Each species has a special reason for migration．
D．Birds migrate to their own particular places every year．


35、The best title for the passage is__________ ．
A．Different Accounts of Migration
B．Migration and Weather
C．New Discovery of Bird Migration
D．Routes of Bird Migration