All(1)_______thingsmustfighttostayalive.Theyhavetofeedonsomethingandatthesametimeavoidbeing(2)_______.Thereforetheyhavetosolvethisbigproblemofstayingaliveintheirownway.Thed
All(1)_______thingsmustfighttostayalive.Theyhavetofeedonsomethingandatthesametimeavoidbeing(2)_______.Thereforetheyhavetosolvethisbigproblemofstayingaliveintheirownway.Thedangerofbeingeatenintheseaisgreat.Thoseplantsandanimalsthatdosurviveusually(3)_______veryfastandingreatnumbers.
(4)_______seaanimalshavedefensivedeviceswhichhelpthemtosurvive.Thejellyfishhave(5)_______tentacles(触角)whichareusedforattackanddefense.Anothermethodof(6)_______whichseaplantsandanimalsuseisdisguise.Theyusuallyhavethesame(7)_______astheirsurroundings.
Inordertostayaliveanimalsneedtohavegoodsenses.Fisheshavesharpeyes.Almostallanimalsaresensitiveto(8)_______.Fishesjudgemovementsinthewaterby(9)_______oftheirlines.Fishesandotherseaanimalscanhearwellandmanyofthemcan(10)_______differenttypesofwarningsound.
1.A.living B.alive C.lively D.live
2.A.taken B.gotten C.haven D.eaten
3.A.produce B.reproduce C.run D.swim
4.A.Any B.Every C.Certain D.Each
5.A.beautiful B.short C.poisonous D.long
6.A.swimming B.survival C.flight D.growth
7.A.color B.body C.width D.length
8.A.runaway B.flee C.touch D.move
9.A.way B.means C.method D.approach
10.A.make B.do C.build D.produce