2019-2020年高三下学期周练英语试题 含答案

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1、2019-2020年高三下学期周练英语试题含答案Differentcreatureshavedevelopedsomeprettycreativewaystogettheirrestandstaysafe.Thelizard（蜥蝎）likestosleepatthefarendofsmallbrancheshangingoutoverapondorlakeintherainforest.Ifasnaketriestoslitherupthebranchtoeatit,itwillshakethebranchand

2、knockthelizardoff,andthelizardwillfallsafelyintothewater.Chameleonscanchangecolortomatchtheirsurroundingsinordertohideevenwhilesleeping.Corillas（大猩猩）liketosleephighinthetrees.Theybuildanewbedeverynight,sometimestakinguptohalfanhourtopilebranches,twigs,andleav

3、esintoafortablebed.Birdsalsofinditsafetosleepinthetrees,butunlesstheyhaveeggsoryoungchicks,theydon’tuseanest.Theyjustlocktheirfeetaroundabranchandhangon.Aspecialtendon（腱）intheirlegsinautomaticallytightwhentheyareatrest,sotheywon’tletgoandfall.Dolphinsliveunde

4、rwater,butmustetothesurfacetobreather.Scientistsnowbelievethatdolphinsmaysleepwithonlyhalftheirbrain,whiletheotherhalfstaysawaketokeepthemsafeandbreathing.Sealsalsodothis,lyingontheirsidesonthesurfaceofthewaterwithoneflipperunderwaterpaddlingtokeeptheirnosesa

5、bovethesurface.Someducksmayalsohavethisability,andactuallysleepwithoneeyeclosedandoneeyeopen.56．Howmanyanimalsarementionedinthispassage?A．6.B．7.C．8.D．9.57．Howdoesachameleonprotectitselfwhilesleeping?A．Bychangingitsbodycolors.B．Byhingingoutoverapond.C．Bysleepi

6、ngwithhalftheirbrain.D．Bymakingbedswithbranches.58．Whywillnotbirdsfallwhentheyareatrest?A．Theybuildnestsandsleepinthem.B．Theyfallasleepautomatically.C．Theyhavealoosetendonintheirlegs.D．Theylocktheirfeetaroundabranch.59．Whatdoesthewriterintendtotellus?A．Thecle

7、verestanimalisthegorillabecauseitcanmakebeds.B．Differencesinhabitatcouldleadtodifferentlivinghabits.C．ThewaysanimalscatchtheirZZZ’sareprettymuchhesame.D．Inordertoprotectthemselvesmostanimalschoosenottosleep.BButIwonderaboutmyMommasometimes,andalltheotherNegro

8、(blacks)motherswhogotupat6a.m.togotothewhiteman’shousewithsacksovertheirshoesbecauseitwassowetandcold.Iwonderhowtheymadeit.Theyworkedveryhardfortheman,theymadehisbreakfastandtheyscrubbedh