北京伯乐马教育研究所专家命制2006年高考英语押题卷完形填空阅读下面短文,掌握其大意,然后从各题所给的四个选项(A、B、C和D)中,选出最佳选项
IfMickeyMouseslipsonabananapeelonTV,viewerslaugh
Butforordinarypeople,fallingisnotamusing
Ifyoutriponacurborfall1yourbike,youcan2daystoheal
Foroldpeople,theresultofafallcanbe3
ScientistsattheUniversityofPittsburgh,US,wantedtoknow4whysomepeoplearemore5tofallthanothers
Theresearchersfoundthatbalanceinvolves6plantingyourfeetonthegroundand7tall
Yourbrainkeepsyoursenseof8withinputsfromyoureyesandinnerearsandsensationsfromyourfeetandlegs
Ifsomethinggoes9withanyofthese,you'relikelytofall
People10tofallmoreoftenastheygrow11becausetheirsensesarelessacute(敏锐的)
Stateof12isimportanttoo
Theresearchshowsthatwhenpeopleknowthey13onaslipperysurface,theyshortentheirpaceandwalkwithflatterfeet
Asaresult,theyfall14often
"Weactuallyma