阅读理解.I
阅读理解. Ittakesmanyyearsforyoutogrowup.Therearetwoperiodsinyourlifewhenyougrowrapidly.The
firstperiodbeginsrightafteryouarebornandlastsuntilyouareaboutsixmonthsold.Thesecondperiod
startswhenyoureachtheageof13.First,girlsgrowfasterthanboys,thenboyscatchupandgrowfaster
andstronger.
Yourheadstopsgrowingearlierthantherestofyou.Bythetimeyouareten,yourheadisnearlyfullsize.
Thebonesofyourarmsandlegsareshortwhenyouareababy.Whenyoureachtheageofnine,yourbones
startstogrowrapidly,andwillkeepgrowinguntilyoureachyourfullheight(高度).
Besidesgrowingtaller,yourbodychangesinotherways.Whenaboyisabout13yearsold,hisvoicebegins
togetdeeperandhemaybegintogrowabeard(胡子).Atabouttheageof13,agirl'sbodybeginstofunction(运行)likeawoman's.Someimportantchangesaretakingplace,changesthatmakesitpossibleforboysand
girls,whentheyareolder,tobecomefathersandmothers.1.Thefirstperiodinyourlifewhenyougrowveryrapidly______.[ ]A.lastsaboutthirteenyears
B.lastsaboutsixmonths
C.doesn'tbeginuntilyouareaboutsixmonthsold
D.beginswhenyouaresixmonthsold2.Yourheadnearlystopgrowing______.[ ]A.whenyouareborn
B.whenyouaretenyearsold
C.whenyouarethirteenyearsold
D.whenyouaresixmonthsold3.Abouttheageof13,achild______.[ ]A.stopsgrowing
B.reachinghisfullheight
C.beginstogrowabeard
D.beginstochangeinotherways4.Themeaningofthelastsentenceisthat______.[ ]A.boysandgirlsarenotsuretobecomefathersandmotherswhentheyareold
B.itisnecessaryforboysandgirlstobecomefathersandmotherswhentheygrowup
C.boysandgirlsmusthavesomeimportantchangesbeforetheygrowup