Why do we count things in group of ten? The reason is that we have ten fingers. Long  41  , when people had to count a lot of things, they matched them against their  42  . First they counted out enough objects to match the fingers of  43  and then put them away in one group.  44 there were more than ten, they formed more groups. We can call our number “two-handed” numbers, because they developed from the  45hat people counted things on two hands.

Some people had “  46 numbers”, too. Because there are five fingers on one hand, they counted things out in groups of five. It was  47 by Romans who lived in Italy over 2000 years ago. We call their written numbers Roman numerals and we use them even today. In Roman numerals, “I” stands for one, and “V” stands for five. For six, the Romans wrote “VI”. 48  people counted objects in groups of 12. We  49  use the 12-in-one-group system for telling time with a clock. We count the  50  from one to twelve and then start with one again.

41.(    ) A. time         B. ago          C. before              D. time before

42.(   ) A. numbers          B. hands           C. fingers          D. feet

43.(   ) A. all hands          B. both hands       C. each hand           D. either hand

44.(   ) A. If              B. As              C. Because         D. Finally

45.(   ) A. idea              B. rule             C. fact             D. reason

46.(   ) A. one-handed          B. two-handed      C. ten-in-all         D. half

47.(   ) A. discovered        B. made            C. taken            D. used

(   )48 A. Few               B. Many            C. Sometimes       D. Very often

49.(   ) A. still                                B. seldom         

C. used to                              D. have stopped to

50.(   ) A. numbers          B. hours            C. minutes          D. time

 0  285552  285560  285566  285570  285576  285578  285582  285588  285590  285596  285602  285606  285608  285612  285618  285620  285626  285630  285632  285636  285638  285642  285644  285646  285647  285648  285650  285651  285652  285654  285656  285660  285662  285666  285668  285672  285678  285680  285686  285690  285692  285696  285702  285708  285710  285716  285720  285722  285728  285732  285738  285746  447348 

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