考研英语完型填空专项练习题及答案.docx

考研英语完型填空专项练习题及答案2017考研英语完型填空专项练习题及答案下面是CN人才网小编整理的完型填空专项练习题，希望对大家有所帮助。完型填空专项练习【1】Chronicinsomniaisamajorpublichealthproblem.Andtoomanypeopleareusing__1__therapies，evenwhilethereareafewtreatmentsthatdowork.MillionsofAmericans__2__awakeatnightcountingsheeporhaveastiffdrinkor__3__anpill，hopingitwillmakethemsleepy.__4__expertsagreeallthatself-medicatingisabadidea，andthecausesofchronicinsomniaremain__5__.Almostathirdofadultshavetroublesleeping，andabout10percenthave__6__ofdaytimeimpairmentthatsignaltrueinsomnia.But__7__thecomplaints，scientistsknowsurprisinglylittleaboutwhatcauseschronicinsomnia，itshealthconsequencesandhowbesttotreatit，apanelofspecialists__8__togetherbytheNationalInstitutesofHealthconcludedWednesday.Thepanelcalled__9__abroadrangeofresearchintoinsomnia，__10__thatifscientistsunderstoodits__11__causes，theycoulddevelopbettertreatments.Most，butnotall，insomniaisthoughtto__12__otherhealthproblems，fromarthritisanddepressiontocardiovasculardisease.Thequestionofteniswhethertheinsomniacamefirstorwasaresultoftheotherdiseasesandhowtroublesleepingin__13__complicatesthoseotherproblems.Otherdiseases__14__，theriskofinsomniaseemstoincreasewithageandtobemore__15__amongwomen，especiallyaftertheir50s.Smoking，caffeineandnumerous__16__drugsalsoaffectsleep.TheNIHisspendingabout$200millionthisyearonsleep-relatedresearch，some__17__tospecificdisordersandothers__18__theunderlyingscientificlawsthatcontrolthenervoussystemofsleep.Theagencywas__19__thepanel‘sreviewbeforedecidingwhatadditionalworkshouldbe__20__atinsomnia.1.[A]unproven[B]unknown[C]improper[D]imperative2.[A]fall[B]lie[C]seem[D]become3.[A]prescribe[B]pop[C]abuse[D]experiment4.[A]And[B]Though[C]Thus[D]But5.[A]peculiar[B]anonymous[C]mysterious[D]unexpected6.[A]signals[B]symptoms[C]signs[D]symbols7.[A]inadditionto[B]exceptfor[C]owingto[D]forall8.[A]pulled[B]collected[C]brought[D]drawn9.[A]on[B]for[C]up[D]in10.[A]noting[B]notifying[C]nosing[D]nominating11.[A]undertaking[B]underlining[C]underlying[D]undermining12.[A]cause[B]a