更新时间：2018-07-29 16:02作者：李天扬老师
Largertransparentanimalshavethebiggestchallenge,becausetheyhavetomakeallthedifferenttissuesintheirbodiesslowdownlightexactlyasmuchaswaterdoes.Theyneedtolookuniform.Buthowthey’redoingitisstillunknown.Onethingisclearfortheselargeranimals,stayingtransparentisanactiveprocess.Whentheydie,theyturnanon-transparentmilkywhite.
63.AccordingtoParagraph1,transparentanimals_______.
A.stayingroupsB.canbeeasilydamaged
C.appearonlyindeepoceanD.arebeautifulcreatures
64.Theunderlinedword“dead”inParagraph3means__________.
A.silentlyB.gradually
C.regularlyD.completely
65.Onewayforananimaltobecometransparentisto________.
A.changethedirectionoflighttravel
B.gathermaterialstoscatterlight.
C.avoidtheabsorptionoflight
D.growbiggertostoplight.
66.Thelastparagraphtellsusthatlargertransparentanimals________.
A.movemoreslowlyindeepwater
B.staysee-throughevenafterdeath
C.producemoretissuesfortheirsurvival
D.takeeffectiveactiontoreducelightsPading