Humanshavefivesenses:sight,hearing,taste,smellandtouch.Weusethesesenseseverydayofourliveswhenwework,play,eatanddrink.Animalshavesensestoo,andsometimestheyworkmuchbetterthanours.Wehaveourfoodpreparedforus—butanimalsneedtofindtheirownfoodusingtheirsenses.Forexample,animalsthathuntotheranimalsoftenhaveverygoodsight.Somebirdscanseeamouseatadistanceof1.5kilometres.However,theydon'talwayscatchthemouse.Micehavevery,verygoodhearingandthishelpsthemgetawayfromdanger!
Insectssometimeshavesensesthataredifferentfromours.Forexample,butterfliesdon'ttastewiththeirmouths—theytastewiththeirfeet.Crickets(蟋蟀)don'thearwiththeirears—theyhearwiththeirlegs.Chameleons(变色龙)havetwoeyes,thesameaswedo,buttheycanmovetheireyesseparatelyandlookintwodifferentdirectionsatthesametime!
Someanimalsseemtohaveaspecialsensethattellsthemaboutthefuture.Birds,antsandmanyotheranimalsarebusierlookingforfoodjustbeforebadweather.Thishelpsthemstayalivebecauseit'smoredifficulttofindfoodwhentheweatherisbad.Theyknowthatbadweatheriscoming.Birdsalsousethisabilitytogetoutofbadweatherwhentheyflylongdistances.Forcenturies,peoplehavenoticedthatanimalsoftenbehavestrangelybeforeanearthquake(地震).Forexample,inJanuary1975,alotoffarmersinonepartofChinatoldscientiststhattheirhorsesandcowsdidnotwanttogoinsidetheirbarns(畜棚).Afewdayslater,therewasalargeearthquakeinthatregion.Doanimalshaveaspecialsensethatknowswhenearthquakeswillhappen?Theanswerisprobablyyes,butscientistsdonotyetunderstandhowitworks.
Fromthepassage,weknow________.
A
someanimalshavebettersensesthanhumans
B
insectshavemoresensesthanhumans
C
birdscanseeonly1.5kilometresaway
D
micehavebetterhearingthanbirds
Someanimalshaveverygoodsightto________.
A
helpthemstayalivealong
B
seethedifferencesofotheranimals
C
catchotheranimalseasily
D
knowwhenbadweathercomes
Whichofthefollowingistru
