41．(tight) I used my thumbnail to ______ the screw on my lamp．

42．(accept)There was a general ______ that the defense budget would shrink．

43．(suspicion) The singer was rightly ______ of meeting me until I reassured him I was not

writing about him．

44．(time)The recent outbreaks of the flu are a ______ reminder that this disease is still a serious health hazard．

45．(rich) Overseas students from a wide range of countries provide the opportunity to exchange ideas and experiences，and ______ the intellectual and social life

of the schoo1．

46．(reason) The Industrial Revolution brought some relief to the city poor in the form of ______ well-built rows of small houses for laborers，especially in England．

47．(write) Unlike other belief systems，Greek culture recognized no single truth or code and produced no sacred， ______ text like the Bible．

48．(experienced) Men appear to shop differently from women simply because they’re men，rather than because they’re ______ shoppers．

49．(involve) Evidence of practical ______ in the subject is required and is normally determined by the submission of a portfolio of work at interview．

50．(similar)There is a strong ______ between a computer virus and a biological virus．

 (41)

(67)

(65)

(66)

(64)

According to the last paragraph，why do people display different levels of mental health?

Unlike most of the other non-foolish holidays，the history of April Fool’s Day, sometimes called All Fool’s Day, is not totally dear．[(63)There really wasn’t a “First April Fool’s Day” that can be pinpointed on the calendar.][(64)Some believe it sort of evolved simultaneously in several cultures at the same time, from celebrations involving the first day of spring.]

     The closest point in time that can be identified as the beginning of this tradition was in 1582, in France. [(65)Prior to that year, the new year was celebrated for eight days, beginning on March 25. The celebration culminated on April 1.] With the reform of the calendar under Charles IX, the Gregorian calendar was introduced, and New Year’s Day was moved to January 1.

     [(66)However, communications being what they were in the days when news traveled by foot, many people did not receive the news for several years.][ (67)Others, the more obstinate crowd, refused to accept the new calendar and continued to celebrate the new year on April 1. ]These backward folk were labeled as “fools” by the general populace. They were subject to some ridicule, and were often sent on “fools errands” or were made the butt (笑柄) of other practical jokes.

 (From April Fool’s Day)

（63）

According to the first paragraph，what are the major aspects of life that may influence one’s psychological well-being?

(60)

(59)

(56)