15春华师《综合英语3》在线作业答案Word文档格式.docx
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15春华师《综合英语3》在线作业答案Word文档格式.docx
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theycanactuallycauseworseinsomnialater.Thebestthingtodoistodrinkmilkoreatcheeseortunafish.Theyareallrichinanaminoacidthathelpsproduceinthebrainaneurotransmitterthatinducessleep.Thisneurotransmitterwillhelpyourelax,andyou’llbeonthewaytogettingagoodnight’ssleep.
1).Whatisthepurposeofthearticle?
A.tomakerecommendationonsensibledieting.
B.toreportthelatestadvancesinbrainsurgery.
C.
torelateanexperimentcombiningsleepandexercise.
D.
toadviseonwaysofdealingwithsleepdifficulties.
正确答案:
D
2).Accordingtothewriter,whathappenswhenyouturnandtwisttogetcomfortable?
A.Yourheartrateislowered.
B.
Itbecomeshardertorelax.
C.Youbecometootiredtosleep.
Sleeprhythmsaredisrupted.
B
3).Accordingtotheauthor,whatsometimescausespeopletohavetroublesleeping?
A.
Failuretorestduringtheday.
B.Lackofsleeponweekends.
C.Vigorousexerciseintheevening.
Eatingcheesebeforegoingtobed.
C
4).Whatdoesthewritersayaboutsleepingpills?
Theymighteventuallycauseyoutolosesleep.
B.Theyhelpproduceaneurotransmitterinthebrain.
Youmustnotdrinkmilkifyoutakethem.
Theymakeitunnecessarytotakenaps.
A
5).Whichofthefollowingisnotabadhabitthatcontributestoinsomnia?
Sleepingalotonweekends.
Lackofexercise.
C.Drinkingmilk.
Takingsleepingpills.
2.
FranklinD.Roosevelt,the32ndpresidentoftheUnitedStates,wasfromawealthy,well-knownfamily.Asachild,heattendedprivateschool,hadprivatetutors,andtraveledwithhisparentstoEurope.HeattendedHarvardUniversity,andafterwardstudiedlaw.Atage39Rooseveltsuddenlydevelopedpolio,adiseasethatlefthimwithoutthefulluseofhislegsfortherestofhislife.Eventhroughtheworstofhisillness,however,hecontinuedhislifeinpolitics.In1924heappearedattheDemocraticNationalConventiontonominateAlSmithforpresident,andeightyearsafterthathehimselfwasnominatedforthesameoffice.RooseveltwaselectedtothepresidencyduringtheGreatDepressionofthe1930s,atatimewhenmorethan5,000bankshadfailedandthousandsofpeoplewereoutofwork.Roosevelttookaction.Firsthedeclaredabankholidaythatclosedallthebankssonomorecouldfail;
thenhereopenedthebankslittlebylittlewithgovernmentsupport.Rooseveltbelievedinusingthefullpowerofgovernmenttohelpwhathecalledthe“forgottenpeople”.Anditwastheseworkers,thewageearners,whofeltthestrongestaffectiontowardRoosevelt.Therewereothers,however,whofeltthatRoosevelt’spoliciesweredestroyingtheAmericansystemofgovernment,andtheyopposedhiminthesameintensewaythatothersadmiredhim.
In1940theDemocratsnominatedRooseveltforanunprecedentedthirdterm.NopresidentinAmericanhistoryhadeverservedthreeterms,butRooseveltfeltanobligationnottoquitwhiletheUnitedStates’entryintoWorldWarIIwasloominginthefuture.Heacceptedthenominationandwentontoaneasyvictory.
1).Whatdoesthepassagemainlydiscuss?
A.politicalaspectsofRoosevelt’slife
problemsduringtheGreatDepression
C.Roosevelt’supbringing
criticismsofRoosevelt’sactions
2).Asusedinline10,thephrase“littlebylittle”meansthatRoosevelt
openedthesmallerbanksfirst
B.openedthebanksforminimalservices
openedthebanksafewatatime
openedthebankforashorttime
3).WhichofthefollowingstatementsinNOTmentionedinthepassage?
RooseveltwaselectedduringtheGreatDepression
RooseveltvotedforAlSmith
Roosevelthaddifficultywalkingduringhispresidency
D.Rooseveltsupportedstronggovernment
4).Theword“affection”asusedinline12couldbestbereplacedbywhichofthefollowing?
fascination
B.fondness
lure
appeal
5).Theword“unprecedented”inline15couldbestbereplacedby
unimportant
B.unheardof
unjustified
D.unhampered
3.
MartinLutherKing,Jr.,iswellknownforhisworkincivilrightsandforhismanyfamousspeeches.Amongthemhismoving“Ihaveadream”speech.ButfewerpeopleknowmuchaboutKing’schildhood.M.L.,ashewascalled,wasbornin1929inAtlanta,Georgia,atthehomeofhismaternalgrandfather.M.L.’sgrandfather,theReverendA.D.Williams,purchasedtheirhomeonAuburnAvenuein1909.twentyyearsbeforeM.L.wasborn.TheReverendWilliams,aneloquentspeaker,playedanimportantroleinthecommunitysincesomanypeople’slivescenteredaroundthechurch.Heallowedhischurchandhishometobeusedasameetingplaceforanumberoforganizationsdedicatedtotheeducationandsocialadvancementofblacks.M.L.grewupinthisatmosphere,withhishomebeingusedasacommunitygatheringplace,andwasnodoubtinfluencedbyit.
M.L.’schildhoodwasnotespeciallyeventful.Hisfatherwasaministerandhismotherwasamusician.Hewasthesecondofthreechildren,andheattendedall-blackschoolsinablackneighborhood.Theneighborhoodwasnotpoor,however.AuburnAvenuewasthemainarterythroughaprosperousneighborhoodthathadcometosymbolizeachievementforAtlanta’sblackpeople.Itwasanareaofbanks,insurancecompanies,builders,jewelers,tailors,doctors,lawyers,andotherblack-ownedofblack-operatedbusinessesandservices.EveninthefaceofAtlanta’ssegregation,thedistinctthrived.Dr.Kingneverforgotthecommunityspirithehadknownasachild,nordidheforgettheracialprejudicethatwasaseeminglyinsurmountablebarrierthatkeptblackAtlantansfromminglingwithwhites.
1).Whatisthispassagemainlyabout?
theprejudicethatexistedinAtlanta
MartinLutherKing’schildhood
M.L.’sgrandfather
theneighborhoodKinggrewup
2).Accordingtotheauthor,Kingwasinfluencedby
communityspirit
blacklawyers
hismother
hisspeeches
3).Asusedinline10,theword“eventful”isclosestinmeaningtowhichofthefollowing?
A.valued
B.memorable
admirable
D.emotional
4).Accordingtotheauthor,M.L.
hadadifficultchildhood
wasagoodmusicianasachild
lovedtolistentohisgrandfatherspeak
grewupinarelativelyrichareaofAtlanta
5).Accordingtotheauthor,blacksinKing’sneighborhoodwereinvolvedinallthefollowingbusinessandservicesEXCEPT
dentistry
B.medicine
C.law
banking
4.
Carbohydrates,whicharesugars,areanessentialpartofahealthydiet.Theyprovidedthemainsourceofenergyforthebody,andtheyalsofunctiontoflavorandsweetenfoods.Carbohydratesrangefromsimplesugarslikeglucosetocomplexsugarssuchasamyloseandamylopection.Nutritionistsestimatethatcarbohydratesshouldmakeupaboutone-fourthtoone-fifthofaperson’sdiet.Thistranslatestoabout75-100gramsofcarbohydratesperday.
Adietthatisdeficientincarbohydratescanhaveanadverseeffectonaperson’shealth.Whenthebodylacksasufficientamountofcarbohydratesitmustthenuseitsproteinsuppliesforenergy,aprocesscalledgluconeogenesis.This,however,resultsinalackofnecessaryprotein,andfurtherhealthdifficultiesmayoccur.Alackofcarbohydratescanalsoleadtoketosis,abuild-upofketonesinthebodythatcausesfatigue,lethargyandbadbreath.
1).What’sthemainideaofthispassage?
carbohydratesareneededforgoodhealth
B.carbohydratespreventabuild-upofproteins.
carbohydratescanleadtoketosis
carbohydratesareanexpendablepartofagooddiet
2).Accordingtothepassage,whichofthefollowingdoesNOTdescribecarbohydrates?
aproteinsupply
anecessity
arangeofsugars
anenergysource
3).Theword“lack”inline9ismostsimilartowhichofthefollowing?
plethora
shortage
derivation
commission
4).Whichofthefollowingbestdescribetheauthor’stone?
sensitive
B.emotional
C.informative
regretful
5).Whichofthefollowingbestdescribestheorganizationofthispassage?
causeandresult
B.comparisonandcontrast
specifictogeneral
definitionandexample
5.
Alzheimer’sdiseaseimpairsaperson’sabilitytorecallmemories,bothdistantandasrecentasafewhoursbefore.Althoughthereisnotyetacurefortheillness,theremaybehopeforacurewithaproteincallednervegrowthfactor.TheproteinisproducedbynervecellsinthesameregionofthebrainwhereAlzheimer’soccurs.Basedonthisrelationship,scientistsfromtheUniversityofLundinSwedenandtheUniversityofCaliforniaatSanDiegodesignedanexperimenttotestwhetherdosesofnervegrowthfactorcouldreversetheeffectsofmemorylosscausedbyAlzheimer’s.Usingagroupofratswithimpairedmemory,thescientistsgavehalfoftheratsdosesofnervegrowthfactorwhilegivingtheotherhalfablood
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