【完形填空。Sometimespeoplecalleachother"scared-cat"buthaveyoueverthoughtaboutthisexpression?Whenacatisfrighteneditsheartstartsbeatingfasteritsmusclesgettenseandtherearechangesin】

　　完形填空。 Sometimespeoplecalleachother"scared-cat"buthaveyoueverthoughtaboutthisexpression?

　　Whenacatisfrighteneditsheartstartsbeatingfasteritsmusclesgettenseandtherearechangesin

　　thechemicalsinitsblood-stream.

　　Althoughthecatdoesn't 1 thisitsbodyisgettingreadyforaction.

　　Ifthedangercontinuesthisanimalwilldooneofthetwothings.Itwill 2 itselforitwillrun

　　awayasfastasitcan.

　　3whenpeopleareexcitedangryscaredorarousedbyotheremotionsourbodiesalsogo

　　throughmany 4 changes.Ourheartsbeatfasterandourmusclesgettense.Allofthesechanges

　　makeusmorealertandreadytoreact.Wetoogetreadytodefendourselves 5 run.

　　Humanbeings 6 haveaproblemthatanimalsneverface.Ifwegivewaytoourfeelingsand

　　letthem 7 wecangetintotrouble.Haveyoueversaidsomethinginangerorhitsomebodyand

　　regretteditlater?Haveyouevershoutedatateachertoldsomeoneyouwerelonelyorsaidyouwere

　　inloveandthen 8 lateryouhadkeptyourmouthshut?Itisn'talways 9 toexpressyourfeelings

　　freely.

　　Doesthismeanthatit'ssmarteralwaysto 10 ourfeelings?No!Ifyou 11 feelingsofanger

　　sadnessandbitternesshiddenawayorbottledupinsideyourbodystays 12 .Physicalillnessescan

　　developItcanactuallybe 13 foryourhealth.

　　Feelingsthatyoukeepallbottledupinsidedon'tjust 14 .It'slikeyouboughtsomebananasand

　　stucktheminacupboard.Youmightnotbeabletoseethembut 15 you'dsmellthem.Andifyou

　　openedthecupboardyou'd 16 littlefruitflieshovering(盘旋)alloverthem.T