连堂综合练四Word下载.docx
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连堂综合练四Word下载.docx
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3.Iknowlittleofmynewneighbor________hecomesfromthenorthwestofChina.
A.exceptwhereB.besidesthat
C.exceptforwhichD.exceptthat
4.He,________inapoorfamily,becameoneofthegreatestwritersintheworld.
A.asbornB.thatis
C.whoisD.althoughborn
5.Oneofthemostfamoustourist________inOxfordisChristChurch.
A.viewsB.scenes
C.sitesD.sights
6.Thencamethewolf,but________knowshowwolvesgottotheisland.
A.nobodyB.anybody
C.somebodyD.everybody
7.Thepriceofcellphones________recently.
A.hasbeenraised
B.hasbeenrisen
C.hasbeenfallenbehind
D.hasbeenbrokendown
8.“Longtimenosee”is________sortofinformal.Butitispartof________languagethatAmericansusedaily.
A.the;
aB.a;
the
C./;
theDa;
a
9.Youoftensaythateveryoneshouldbeequal,andthisis________Idisagree.
A.whyB.where
C.whatD.how
10.TheproblempuzzledmesomuchthatIstoppedforafewsecondstotryto________.
A.makeitoverB.makeitoff
C.makeitupD.makeitout
11.________theInternetbringsmuchprofitin,itcancausealotofsocialproblems.
A.IfB.While
C.OnceD.When
12.Noweveryoneherewasworkinghardanddoingwhattheycould________moremoney.
A.makeB.tomake
C.makingD.made
13.Thisisa________butextremelydifficulttechnologyinthefuture.
A.satisfactoryB.costly
C.promisingD.farfetched
14.—WhatdoesCanadaexport?
—Alargequantityofwheat________sentaway.
A.isB.are
C.haveD.isbeing
15.—Excuseme,whattimeisitnow?
—Sorry,mywatch________.It________attheshop.
A.won’twork;
isbeingrepaired
B.doesn’twork;
C.didn’twork;
isrepaired
D.doesn’twork;
16.Lastsummer,wevisitedtheWestLake________Hangzhouisfamousintheworld.
A.forwhichB.forthat
C.inwhichD.what
17.Assoonashe________,heraisedhisownopinionabouteconomy.
A.reachedpowerB.arrivedatpower
C.cametopowerD.gottopower
18.—Howaboutgoingoutforawalk?
—________
A.What’syouropinion?
B.Ipreferit.
C.Iagree.D.Goodidea!
19.Weadvisedthey________tobuildthebridgeearly.
A.startB.wouldstart
C.startedD.havestarted
20.Shewasalwayspatientwithherchildren,andtherefore________tobeagoodmother.
A.provedB.wasproved
C.proveD.wasproving
Ⅱ.完形填空
OnedayinSeptemberweweredoingrepairworkonmyparents’oldhousetogetitreadyformyyoungestdaughter’swedding.Wehadto__21__agreatclimbingplantthathadgrown__22__aroofbeam(房梁),sothatwecouldrepairtheroofand__23__thewalls.
Whenmyhusbandwastakingtheplantaway,hefounda__24__ofablackbirdthathadmadeitshomeintheleaves.Hethen__25__something__26__amongthatmassofearthandstrawofthenest.Hebroketheeartharounditintopieceswithhisfingertipsand,tohis__27__,sawglitteringgold.Itwasachild’sbracelet(手镯).Heranintothehouseto__28__me.
“Youwon’tbelievethatthe__29__blackbirdsnotonlystealthebestfruitwe__30__tofeedon,”hesaid,“buttheyalsowanttheirchildrento__31__inacradle(摇摆)ofgold!
”
Whenmydaughtercameoverontheeveofthe__32__,wetoldheraboutthis__33__occurrence.
“Don’tyouremember,Mother?
”shesaidwithaloud__34__.“WhenIwaseight,yougavemeabraceletthatI__35__afewdayslaterwhileoutplayingintheyard?
Itwasthisone!
Asthebraceletnolonger__36__itsownerandwasdirty,Idecidedtotakeitintomysafekeeping.
InDecemberofthefollowingyear,theyoungcouple’sbabysonwasbaptized(受洗礼).Amongthe__37__thenewbornbabyreceived,Iplacedhismother’sbracelet,nowshininglike__38__.Ihopethatifmygrandson__39__losesit,oneofthe__40__thatliveinmybackyardissomewherenearby.
21.A.removeB.coverC.growD.water
22.A.beyondB.over
C.acrossD.through
23.A.buildB.paintC.rescueD.print
24.A.nestB.babyC.bodyD.egg
25.A.movedB.got
C.pickedD.noticed
26.A.niceB.colorful
C.shinyD.special
27.A.horrorB.surprise
C.delightD.disappointment
28.A.askB.tellC.showD.give
29.A.workingB.cheating
C.dreamingD.thieving
30.A.buyB.plantC.storeD.collect
31.A.lieB.singC.listenD.wait
32.A.partyB.Christmas
C.birthdayD.wedding
33.A.importantB.strange
C.terribleD.funny
34.A.cryB.sighC.laughD.sound
35.A.hidB.threwC.lostD.broke
36.A.fittedB.satisfied
C.matchedD.interested
37.A.jewelsB.toys
C.clothesD.presents
38.A.attractiveB.new
C.modernD.golden
39.A.almostB.justC.evenD.ever
40.A.blackbirdsB.grandchildren
C.neighborsD.mice
Ⅲ.阅读理解
A
Ablueholeisafloodedseacavewithaholethatopensupattheland’ssurface.Thesecavesystemsformincarbonate(碳酸盐)rock,oftenonislands.Someblueholeshaveveryspecialrockformationsandwaterchemistry.Farbelowsealevel,theycontainsomeoftheharshestenvironmentsonEarth,withnooxygenandnolight.Yettheseareasarefilledwithlifeformsthathaveadaptedtotheextremeconditions.
Informationgatheredfromtheseblueholesishelpingscientiststoincreasetheirunderstandingofbiology,archaeology(考古学)andgeology.Butexploringtheseblueholeenvironmentsbringsdangeraswellasdiscovery.
Blueholesgettheirnamefromthecolorsomehavewhenseenfromtheair.Thecolorisusuallyareflectionoftheskyonthewater.Butnotallofthesecavesystemshavebluesurfaces.Somecontaindarkormuddywater.
Blueholesaretheresultoferosion(侵蚀)inwhichwaterbreaksdownrock.Rainfallingthousandsofyearsagocontainedchemicalswhichslowlyworeawayatthelimestone(石灰岩)landmass.Theseholeswerelaterfilledwithseawaterasthesealevelchanged.Therisingandfallingofsealevelsandthemixtureofsaltandfreshwaterfurtherworeawayatthesecaveformations.Blueholesarevertical(垂直的)caves.Buttheycanalsohavehorizontalcaveformationsthatmaybehundredsofmeterslong.
Thesefloodedcavesystemscanbefoundintheocean,ortheycanbefoundinland.Oceancavesareaffectedbytides,sotheyalwayshavewatermovement.Butblueholesonlandareverystill.Theyhaveseverallayersofwater,chemicals,andbacteria.Thetoplayeroffreshwatercomesfromrainfall.Thislayeractslikeacapontopofthelayeredmixture,andkeepsoutoxygenfromtheatmosphere.Thefreshwaterfloatsonadenser(浓密的)layerofsaltwater.Underneaththisisalayerofpoisonoushydrogensulfide(硫化氢),producedbybacterialivinginthewater.Underneaththislayerisanoxicseawater,whichdoesnotcontainanyoxygen.
Underwatercavesareprobablyoneoftheleastexploredecosystemsontheplanet.Onereasonblueholeshavenotbeenfullyexploredisthattheycanbeextremelydangerous.Therearemanysafetyrulesthatdiversmustfollowtohelpensuretheirsurvival.
First,diversmusthavetrainingandexperiencetoswiminthesecaves.Thosewhoexploreacaveforthefirsttimemustestablishathinropecalledaguideline.Thislinehelpsthemtosafelyenterandexitthecavewithoutgettinglost.Theymustalsobringseverallightsourcesincaseonefails,andbringmorethanonesetofbreathingequipmentincaseonedevicefails.Meanwhile,theymustpaycarefulattentiontotheirairsupply.Theruleistouseathirdoftheirairtoenterthecave,athirdtoexit,andathirdforemergencies.
Therearemanydifficultiesinvolvedindivinginblueholes.Insomeblueholesdiversmustquicklyswimthroughalayerofhydrogensulfidetoreachthehorizontalcavesfurtherdown.Thisgascausesitchyskin,dizziness,andinhighenoughquantities,death.Or,diversmightfaceextremelystrongcurrentsthatcansuckthemintoanopening.Iftheyarenotcarefulwiththeirmovementstheycancausedisorderintheareaofacave,creatingexplosionsofsilt(淤泥)whichmakesitimpossibletoseeclearly.
Formostexplorers,though,thepossibilityofdiscoveryinthesecaveenvironmentsmakestheexperienceworththerisk.Youcanjumpintowhatlookslikeaninsignificantlittleholeintheground,andcomeoutwithinformationthat’sofvaluetomanydifferentdisciplines.ScientistsareinterestedinthesecavesbecauseoxygenfreeconditionstherearesimilartothoseonEarthlongago,beforeoxygenexistedonourplanet,aswellassimilartospace.
41.Accordingtothepassage,blueholes________.
A.arenowapopularchoicefortourists
B.arefloodedcavesfoundmostlyonislands
C.haveappearedasrockspileupyearbyyear
D.cangiveoffbrightbluelightdeepinthecaves
42.Itcanbeinferredfromthepassagethat________.
A.quantitiesofadvancedlifeformsexistinblueholes
B.blueholesarenotfullyexploredduetotheirlowvalue
C.blueholesareverticalcavesbecauseofstrongcurrents
D.thechemicalsintherainleadtotheformationofbluecaves
43.Thefifthparagraphmainlytalksabout________.
A.twodifferenttypesofblueholes
B.howablueholecomesintobeing
C.whyscientistsareinterestedinblueholes
D.rulesfordiversexploringblueholes
44.Whenexploringblueholes,diversmust________.
A.haveathinropeasaguidelineanytime
B.wearglassesincaseofbrightbluelight
C.swimasquicklyaspossibletosavetime
D.learntomakegooduseoftheirairsupply
45.Theexplorationofblueholescanhelpus________.
A.discovermoreenergyresources
B.understandtheoriginoflifeonEarth
C.learnaboutthemovementsofseawater
D.getreadyfortheexplorationoftheocean
B
ScientistsIdenti
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