2022年英语四级完形填空试题及答案解析13

2022年英语四级完形填空试题及答案解析13Today,mostcountriesintheworldhavecanals.Manycountrieshavebuiltcanalsnearthecoast,andparallel1thecoast.Eveninthetwentiethcentury,goodscanbemovedmorecheaplybyboatthanbyanyother2oftransport.These

3makeitpossibleforboatstotravel4portsalongthecoastwithoutbeing5tothedangersoftheopen.Somecanals,suchastheSuezandthePanama,saveshipsweeksoftimebymakingtheir6athousandmilesshorter.Othercanalspermitboatstoreachcitiesthatarenot7onthecoast,stillothercanals8landsswheresthereistoomuchwater,helpto9fieldswherethereisnotenoughwater,and10waterpowerforfactoriesandmills.Thesizeofacanal11onthekindofboatsgoingthroughit.Thecanalmustbewideenoughtopermittwoofthelargestboatsusingitto12eachothereasily.Itmustbedeepenoughtoleaveabouttwofeetofwater13thekeelofthelargestboatusingthecanal.WhentheplanetMarswasfirst14throughatelescope,peoplesawthattherounddiskoftheplanetwascriss-crossedbya15ofstrangeblue-greenlines.Thesewerecalled“canals”16theylookedthesameascanalsonearth17areviewedfromanairplane.However,scientistsarenow18thattheMartianphenomenaarereallynotcanals.Thephotographs19fromspace-shipshavehelpedusto20thetruthabouttheMartia“canals”.

1.A.offB.withC.toD.by

2.A.wayB.meansC.methodD.approach

3.A.waterwaysB.waterfrontsC.channelsD.paths

4.A.amongB.betweenC.inD.to

5.A.revealedB.exposedC.openedD.shown

6.A.tripB.journeyC.voyageD.route

7.A.lainB.stationedC.setD.located

8.A.escapeB.drainC.dryD.leak

9.A.waterB.wetC.soakD.irrigate

10.A.furnishB.affordC.offerD.give

11.A.focusesB.basesC.dependsD.takes

12.A.crossB.passC.moveD.advance

13.A.downB.belowC.beneathD.off

14.A.studiedB.researchedC.surveyedD.observed

15.A.fewB.numberC.dealD.supply

16.A.althoughB.becauseC.soD.if

17.A.thatB.whereC.whenD.as

18.A.exactB.defi