2024剑桥雅思讲义Sentence_Completion_Practice_Questions_1.docx

j Ei B/ IELTS ADVANTAGESentenceCompletionPracticeQuestionsCompletethesentencesbelow.WriteNOMORETHAN2WORDSforeachanswer.1. Aperson'scircadianrhythmdeterminestheirduringthecourseofaday.2. Comparedtothe1940s,theaverageAmericanisnowtypicallygettinganentiresleep.3. Somepeopleareproudofnotgettingenoughsleepandconsideritabadgeof.4. Alackofsleephasbeentoavarietyofdiseases.5. The3stagesofsleeparereferredtoas,REM,anddeepsleep.6. Whenpeopledon'tgetampleamountsofdeepsleep,itcanhurttheirabilitytolearnandtheirbodiesanditscellsto.7. Alaboratoryinhasproventhatcertainsoundsbeingplayedattherightmomentsduringdeepsleepcanmakepeoplesleepmoredeeplyandefficiently.8. Whenplayedduringdeepsleep,thesesoundscausepeople,smindstoproducemoreregenerative.9. Thisoccurreddespitethefactthatparticipantsinthestudywerecompletelythatanysoundshadbeenplayedduringtheirsleep.10. Researcherseventuallydiscoveredthatitwaspossibletoaccuratelywithnoneedtohookpeopleuptoelectrodesandmakethemsleepmoredeeply.IELTSADVANTAGESentenceCompletionPracticeQuestionsAnswerKey:1. energylevel2. hourless3. honor4. linked5. lightsleep6. recover7. Germany8. deltawaves9. unaware10. tracksleepLinktovideotutorial:https:Shale.oetcloudaDP.com2NuXYGovTranSCriPtSOUrCe:https:WWWWhatifyoucouldmakeyoursleepmoreefficient?Asasleepscientist,thisisthequestionthathascaptivatedmeforthepast10years.Becausewhilethelightbulbandtechnologyhavebroughtaboutaworldof24-hourworkandproductivity,ithascomeatthecostofournaturallyoccurringcircadianrhythmandourbody'sneedforsleep.Thecircadianrhythmdictatesourenergylevelthroughouttheday,andonlyrecentlywe'vebeenconductingaglobalexperimentonthisrhythm,whichisputtingoursleephealthandultimatelyourlifequalityinjeopardy.Becauseofthis,wearen'tgettingthesleepweneed,withtheaverageAmericansleepingawholehourlessthantheydidinthe1940s.Forsomereason,wedecidedtowearitasabadgeofhonorthatwecangetbyonnotenoughsleep.Thisalladdsuptoarealhealthcrisis.MostofusknowthatpoorsleepislinkedtodiseaseslikeAlzheimer's,cardiovasculardisease,strokeanddiabetes.Andifyougountreatedwithasleepdisorderlikesleepapnea,you'remorelikelytogetmanyofthese川nesses.Butdidyouknowaboutsleep'simpactonyourmentalstates?Poorsleepmakesusmakerisky,rashdecisionsandisadrainonourcapacityforempathy.Whensleepdeprivationliterallymakesusmoresensitivetoourownpain,it'snotsosurprisingthatwehaveahardtimerelatingtoothersandjustgenerallybeingagoodandhealthypersonwhenwe,resleep-deprived.Scientistsarenowstartingtounderstandhownotonlythequantitybutalsothequalityofsleepimpactsourhealthandwell-being.Myresearchfocusesonwhatmanyscientistsbelieveisthemostregenerativestageofsleep:deepsleep.Wenowknowthatgenerallyspeaking,therearethreestagesofsleep:lightsleep,rapideyemovementorREManddeepsleep.Wemeasurethesestagesbyconnectingelectrodestothescalp,chinandchest.InIELTSADVANTAGESentenceCompletionPracticeQuestionslightsleepandREM,ourbrainwavesareverysimilartoourbrainwavesinwakinglife.Butourbrainwavesindeepsleephavetheselong-burstbrainwavesthatareverydifferentfromourwakinglifebrainwaves.Theselong-burstbrainwavesarecalleddeltawaves.Whenwedon'tgetthedeepsleepweneed,itinhibitsourabilitytolearnandforourcellsandbodiestorecover.Deepsleepishowweconvertallthoseinteractionsthatwemakeduringthedayintoourlong-termmemoryandpersonalities.Aswegetolder,we'remorelikelytolosetheseregenerativedeltawaves.So,inaway,deepsleepanddeltawavesareactuallyamarkerforbiologicalyouth.Sonaturally,IwantedtogetmoredeepsleepformyselfandIliterallytriedalmosteverygadget,gizmo,deviceandhackoutthere-consumer-grade,clinical-grade,whathaveyou.Ilearnedalot,andIfoundIreallydoneed,likemostpeople,eighthoursofsleep.Ievenshiftedmycircadiancomponentbychangingmymeals,exerciseandlightexposure,butIstillcouldn'tfindawaytogetadeepernightofsleep.thatisuntilImetDr.DmitryGerashchenkofromHarvardMedicalSchool.Dmitrytoldmeaboutanewfindingintheliterature,wherealaboutofGermanyshowedthatifyoucouldplaycertainsoundsattherighttimeinpeople'ssleep,youcouldactuallymakesleepdeeperandmoreefficient.Andwhat'smore,isthatthislabshowedthatyouactuallycouldimprovenext-daymemoryperformancewiththissound.DmitryandIteamedup,andwebeganworkingonawaytobuildthistechnology.WithourresearchlabcollaboratorsatPennState,wedesignedexperimentsinordertovalidateoursystem.Andwe'vesincereceivedgrantfundingfromtheNationalScienceFoundationandtheNationalInstituteofHealthtodevelopthisdeep-sleepstimulatingtechnology.Here'showitworks.Peoplecameintothelabandwehookedthemuptoanumberofdevices,twoofwhichIhaveonrighthere-notafashionstatement.Whenwedetectedthatpeoplewereindeepsleep,weplayedthedeep-sleepstimulatingsoundsthatwereshowntomakethemhavedeepersleep.mgoingtodemothissoundforyourightnow.(Repeatingsoundwaves)Prettyweird,right?Sothatsoundisactuallyatthesameburstfrequencyasyourbrainwaveswhenyourbrainisindeepsleep.Thatsoundpatternactuallyprimesyourmindtohavemoreoftheseregenerativedeltawaves.Whenweaskedparticipantsthenextdayaboutthesounds,theywerecompletelyunawarethatweplayedthesounds,yettheirbrainsrespondedwithmoreofthesedeltawaves.Here'sanimageofsomeone'sbrainwavesfromthestudythatweconducted.Seethebottompanel?Thisshowsthesoundbeingplayedatthatburstfrequency.Nowlookatthebrainwavesintheupperpartofthegraph.Youcanseefromthegraphthatthesoundisactuallyproducingmoreoftheseregenerativedeltawaves.Welearnedthatwecouldaccuratelytracksleepwithouthookingpeopleuptoelectrodesandmakepeoplesleepdeeper.We,recontinuingtodeveloptherightsoundenvironmentandsleephabitattoimprovepeople'ssleephealth.j Ei B/ IELTS ADVANTAGESentenceCompletionPracticeQuestionsOursleepisn'tasregenerativeasitcouldbe,butmaybeonedaysoon,wecouldwearasmalldeviceandgetmoreoutofoursleep.Thankyou.