15春华师《综合英语3》在线作业答案.docx

15春华师《综合英语3》在线作业答案.docx

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15春华师《综合英语3》在线作业答案

华师《综合英语（3）》在线作业

一、阅读理解（共10道试题，共100分。

）

1.

Doyouhavetroublesleepingatnight?

Thenmaybethisisforyou.

Whenyouworryaboutneedingsleepandtwistaroundtryingtofindacomfortableposition,you’reprobablyonlymakingitmoredifficulttorelax.

Youmayalsohavesomebadhabitsthatcontributetotheproblem.Doyourestfrequentlyduringtheday?

Doyouthinkaboutsleepingalot,orsleepinglateonweekends?

Anyorallofthesefactorsmightbeleadingtoyourinsomniabydisruptingyourbody’snaturalrhythms.

Whatshouldyoudothenonthosesleeplessnights?

Don’tbotherwithsleepingpills;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.

D.

Sleeprhythmsaredisrupted.

正确答案：

B

3）.Accordingtotheauthor,whatsometimescausespeopletohavetroublesleeping?

A.

Failuretorestduringtheday.

B.Lackofsleeponweekends.

C.Vigorousexerciseintheevening.

D.

Eatingcheesebeforegoingtobed.

正确答案：

C

4）.Whatdoesthewritersayaboutsleepingpills?

A.

Theymighteventuallycauseyoutolosesleep.

B.Theyhelpproduceaneurotransmitterinthebrain.

C.

Youmustnotdrinkmilkifyoutakethem.

D.

Theymakeitunnecessarytotakenaps.

正确答案：

A

5）.Whichofthefollowingisnotabadhabitthatcontributestoinsomnia?

A.

Sleepingalotonweekends.

B.

Lackofexercise.

C.Drinkingmilk.

D.

Takingsleepingpills.

正确答案：

C

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

B.

problemsduringtheGreatDepression

C.Roosevelt’supbringing

D.

criticismsofRoosevelt’sactions

正确答案：

A

2）.Asusedinline10,thephrase“littlebylittle”meansthatRoosevelt

A.

openedthesmallerbanksfirst

B.openedthebanksforminimalservices

C.

openedthebanksafewatatime

D.

openedthebankforashorttime

正确答案：

C

3）.WhichofthefollowingstatementsinNOTmentionedinthepassage?

A.

RooseveltwaselectedduringtheGreatDepression

B.

RooseveltvotedforAlSmith

C.

Roosevelthaddifficultywalkingduringhispresidency

D.Rooseveltsupportedstronggovernment

正确答案：

B

4）.Theword“affection”asusedinline12couldbestbereplacedbywhichofthefollowing?

A.

fascination

B.fondness

C.

lure

D.

appeal

正确答案：

B

5）.Theword“unprecedented”inline15couldbestbereplacedby

A.

unimportant

B.unheardof

C.

unjustified

D.unhampered

正确答案：

B

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?

A.

theprejudicethatexistedinAtlanta

B.

MartinLutherKing’schildhood

C.

M.L.’sgrandfather

D.

theneighborhoodKinggrewup

正确答案：

B

2）.Accordingtotheauthor,Kingwasinfluencedby

A.

communityspirit

B.

blacklawyers

C.

hismother

D.

hisspeeches

正确答案：

A

3）.Asusedinline10,theword“eventful”isclosestinmeaningtowhichofthefollowing?

A.valued

B.memorable

C.

admirable

D.emotional

正确答案：

B

4）.Accordingtotheauthor,M.L.

A.

hadadifficultchildhood

B.

wasagoodmusicianasachild

C.

lovedtolistentohisgrandfatherspeak

D.

grewupinarelativelyrichareaofAtlanta

正确答案：

D

5）.Accordingtotheauthor,blacksinKing’sneighborhoodwereinvolvedinallthefollowingbusinessandservicesEXCEPT

A.

dentistry

B.medicine

C.law

D.

banking

正确答案：

B

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?

A.

carbohydratesareneededforgoodhealth

B.carbohydratespreventabuild-upofproteins.

C.

carbohydratescanleadtoketosis

D.

carbohydratesareanexpendablepartofagooddiet

正确答案：

A

2）.Accordingtothepassage,whichofthefollowingdoesNOTdescribecarbohydrates?

A.

aproteinsupply

B.

anecessity

C.

arangeofsugars

D.

anenergysource

正确答案：

A

3）.Theword“lack”inline9ismostsimilartowhichofthefollowing?

A.

plethora

B.

shortage

C.

derivation

D.

commission

正确答案：

B

4）.Whichofthefollowingbestdescribetheauthor’stone?

A.

sensitive

B.emotional

C.informative

D.

regretful

正确答案：

C

5）.Whichofthefollowingbestdescribestheorganizationofthispassage?

A.

causeandresult

B.comparisonandcontrast

C.

specifictogeneral

D.

definitionandexample

正确答案：

B

5.

Alzheimer’sdiseaseimpairsaperson’sabilitytorecallmemories,bothdistantandasrecentasafewhoursbefore.Althoughthereisnotyetacurefortheillness,theremaybehopeforacurewithaproteincallednervegrowthfactor.TheproteinisproducedbynervecellsinthesameregionofthebrainwhereAlzheimer’soccurs.Basedonthisrelationship,scientistsfromtheUniversityofLundinSwedenandtheUniversityofCaliforniaatSanDiegodesignedanexperimenttotestwhetherdosesofnervegrowthfactorcouldreversetheeffectsofmemorylosscausedbyAlzheimer’s.Usingagroupofratswithimpairedmemory,thescientistsgavehalfoftheratsdosesofnervegrowthfactorwhilegivingtheotherhalfablood