7届高三下学期周练1英语试题附答案.docx

7届高三下学期周练1英语试题附答案.docx

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7届高三下学期周练1英语试题附答案

河北定州中学2016-2017学年第二学期高三英语周练试题

（1）

一、阅读理解

Ifyoulookatthenightsky,you’lloftenseestarsmovingveryquickly.Infact,theymovemuchmorequicklythantheyshouldaccordingtotheirsizeandthelawsofphysics.

Scientistsdonotcompletelyunderstandwhythespeedofthesestarsissohigh.Butmanybelievethereasonisthatmuchoftheuniverseismadeofsomethingcalled“darkmatter”.Groupsofstarscalledgalaxies,suchastheMilkyWay,mightevenbemadeupof90percentdarkmatter.

Howmuchsomethingweighsdependsonwhereitis.ThesameobjectweighsonlyhalfasmuchonMarsasitdoesonEarthandalmostthreetimesasmuchonJupiter.Soscientistsprefertotalkaboutthemass（质量）ofsomethingratherthanhowmuchitweighs,becausemassdoesnotchange.Theycanworkoutthemassofgalaxiesbymeasuringthedistancebetweenthemandthespeedtheymoveat.

Recently,JorgePeñarrubia,asenioracademicatEdinburghUniversity,UK,andhisteamdiscoveredsomethinginteresting:

ThemassoftheMilkyWayisonlyhalfasmuchasthemassofanothernearbygalaxy,Andromeda.Thisseemsstrange,anddarkmattermayexplainwhy.

Findingoutmoreaboutdarkmattercouldhelpusunderstandhowtheuniversebegan,butthisisnoteasy.Lotsofscientistswithdifferenttypesofexpertknowledgeareworkingontheproblem.

Wecan’tseedarkmatter,it’sverydifficulttomeasureandwecan’tfindoutitsmass.Unlikestars,darkmatterdoesn’tproduceorreflectlight.Butwecanmakeagoodguessthatitistherebecauseofthewaythingsmoveandthewaylightbends.ExpertsnowthinkdarkmattermaybeverydifferentfromthematterthatwefindonEarth.Theremayalsobefivetimesasmuchdarkmatterintheuniverseasordinarymatter.

1．Somethingthatweighs15kgonEarthweighsabout_____onMarsand_____onJupiter.

A.7.5kg,45kgB.30kg,45kgC.45kg,7.5kgD.5kg,30kg

2．TheauthormentionsthemassesoftheMilkyWayandAndromedamainlyto

_____.

A.explainwhythesameobjecthasadifferentweightondifferentstars

B.comparethedistancebetweentheMilkyWayandAndromeda

C.showthatstudyingdarkmattercouldhelptoanswersomescientificquestions

D.supporttheideathatscientistsprefertotalkaboutmassinsteadofweight

3．Darkmatterisdifficulttoinvestigatebecause_____.

A.ittravelsataveryfastspeed

B.wecan’tseewhereitisormeasureitsmass

C.it’shardtomeasurethelightitproducesandreflects

D.itismuchbiggerthanordinarymatterinsize

4．Accordingtothetextdarkmatter_____.

A.couldacceleratethespeedofstars

B.couldlessenthemassofobjectsingalaxies

C.makesuptheentireuniverseanditsstars

D.mayhelpusidentifytheoriginsoftheuniverse

What'sthemostimportantthinginlife?

People'sanswersvarygreatly.ForBritishscientistRobertEdwards,theanswerishavingachild."Nothingismorespecialthanachild,"hetoldtheBBC.

Edwards,theinventoroftheInVitroFertilization（IVF）technology—morecommonlyknownas"test-tube（试管）baby"technology—passedawayonApril10,2013attheageof87.

"Edwardschangedthelivesofmillionsofordinarypeoplewhonowrejoice（高兴）inthegiftoftheirownchild,"saidPeterBraude,aprofessoratKing'sCollegeLondon."Heleavestheworldamuchbetterplace."

Edwardsstartedhisexperimentsasearlyasthe1950s,whenhehadjustfinishedhisPhDingenetics.Atthattime,muchofthepublicviewedtest-tubebabiesas"scary",accordingtoMarkSauer,aprofessoratColumbiaUniversity,US.

EdwardsandhiscolleaguePatrickSteptoefacedoppositionfromchurches,governmentsandmedia,nottomentionattacksfrommanyoftheirfellowscientists."PeoplesaidthatweshouldnotplayGodandweshouldnotinterferewithnature,"EdwardsoncetoldTimes.Hesaidthathefelt"quitealone"atthetime.

"ButEdwardswasafighter,andhebelievedinwhathewasdoing,"saidSauer.Withoutsupportfromthegovernment,thetwostruggledtoraisefundstocarryon.Andin1968theyfinallydevelopedamethodtosuccessfullyfertilizehumaneggsoutsidethebody.

Thefirsttest-tubebabywasbornonJuly25,1978.HernamewasIsLouiseBrown.Despitepeople'ssafetyconcerns,Brownwasjustashealthyasotherchildren.

"IVFhadmovedfromvisiontorealityandanewerainmedicinehadbegun,"BBCcommented.

Eversincethen,publicopinionhasevolvedconsiderably.Coupleswhowereunabletohavebabiesbeganthronging（拥向）toEdwards'clinic.Nowadays,Reutersreports,some4.3millionother"test-tube"childrenexist.EdwardsreceivedaNobelPrizein2010andwasknighted（封为爵士）byQueenElizabethinthefollowingyear.

Beforehisdeath,EdwardswasstillintouchwithLouise."Heislikeagranddadtome,"shesaidinaninterviewwiththeDailyMail.

Heisagranddadtomillions,infact.

5．What’sthearticlemainlyabout?

A.Thefirsttest-tubebaby.

B.Anewerainmedicine.

C.TheinventorofIVFtechnology.

D.ThechangesIVFtechnologyhasbrought.

6．ThewritermentionedPeterBraudeto.

A.showhowdifficultitwasforEdwardstodohiswork

B.describewhatkindofpersonEdwardswas

C.explainwhyheislovedbyallchildren

D.commentonhisachievement

7．Theunderlinedword"opposition"inParagraph6isclosestinmeaningto""

A.attackB.supportC.testD.influence

8．WhatisthecorrectorderofeventsinEdwards'life?

a.HereceivedaNobelPrize.

b.Hestruggledtoraisefunds.

c.Thefirsttest-tubebabywasborn.

d.HewasknightedbyQueenElizabethII.

e.Hesucceededinfertilizinghumaneggsoutsidebody.

f.HestartedhisexperimentsonIVFtechnology.

A.f-e-b-c-a-dB.f-b-e-c-d-a

C.f-b-e-c-a-dD.f-e-d-a-c-b

Awarmdrinkofmilkbeforebedhaslongbeenthebestchoiceforthosewantingagoodnight’ssleep.Butnowastudyhasfounditreallydoeshelppeoplenodoff—ifitismilkedfromacowatnight.

Researchershavediscoveredthat“nightmilk”containsmoremelatonin（褪黑激素）,whichhasbeenproventohelppeoplefeelsleepyandreduceanxiety.

Thestudy,byresearchersfromSeoul,SouthKorea,involvedmicebeingfedwithdriedmilkpowdermadefromcowsmilkedbothduringthedayandatnight.

Thosegivennightmilk,whichcontained10timestheamountofmelatonin,werelessactiveandlessanxiousthanthosefedwiththemilkcollectedduringdaytime,accordingtothestudypublishedinTheJournalofMedicinalFood.

Nightmilkquickenedthestartofsleepandcausedthemicetosleeplonger.

Whiletheeffectofcowsmilkharvestedatdifferenttimeshasnotbeentestedonhumansuptonow,takingmelatonindrugshasbeensuggestedtothosewhoarestrugglingtofallasleepatnight.

Previousstudieshavealsoindicatedthatmilkcanbeexcellentforhelpingsleepbecauseofthecalciumcontent,whichhelpspeopletorelax.

Milkisalsosugar-freeandadditive-freewithnutritionistsrecommendingskimmedmilkasthebestchoicebeforebedasitistheleastfattening.Themorefatyoutakeinbeforebedtime,thegreaterburdenyouwillputonyourbodyatnight.

9．Accordingtothetext,themicefedwithdaytimemilk_______.

A.startedsleepmoreeasilyB.werelessactive

C.weremoreanxiousD.wokeuplater

10．WhichofthefollowingisTRUEofmelatoninaccordingtothetext?

A.It’susedinsleepingdrugs

B.Itexistsinmilkingreatamount

C.Itcanmakepeoplemoreenergetic

D.It’sbeentestedonmicefortenyears

11．Whatcanbeasuitabletitleforthetext?

A.MilkDrinkingandHealth

B.Fat,SugarandHealth

C.AnExperimentonMice

D.NightMilkandSleep

12．Howdoestheauthorsupportthethemeofthetext?

A.Bygivingexamples.

B.Byprovidingresearchresults.

C.Byexplainingstatisticaldata.

D.Bystatingarguments

IsitpossiblethatthesinkingoftheTitanicwascausedbyaghost?

Alotofthestorybelowistrue…butdiditreallyhappenquitelikethis?

OurstorybeginsnotintheicycoldwatersoftheNorthAtlantic,butratherthousandsofmilesawayinEgypt.Itishere,perhaps,thatwecanfindthestartofthemysteryoftheTitanic,intheyear1910,inthegreatcityofCairo.Oneday,afamousprofessorofEgyptianhistorycalledDouglasMurraywasstayinginCairo,whenhewascontactedbyanAmericanadventurer.

TheAmericanhadsomethingunusualtoofferMurray,somethingthatwascertaintothrillhim:

abeautifulancientEgyptianmummycase,containingthemummyofanEgyptianqueen.Itwasover3000yearsold,butinbeautifulcondition------gold,withbrightpaintingsonit.Murraywasdelightedwithboththeobjectandtheasking-price.Hegavethemanachequeimmediately.

Thechequewasnevercashed.ThateveningtheAmericanadventurerdied.Forhispart,MurrayarrangedtohavethetreasuresentbacktoBritain.However,itwasnotlongbeforehelearntmoreaboutthebeautifulmummycase:

Onthewallsofthetombinwhichithadbeendiscovered,thereweremessageswhichwarnedofterribleconsequencestoanyonewhobrokeintothetomb.Murraywasdisbelievingofthesewarningsuntilafewdayslater,whenagunhewasholdingexplodedinhishand,shatteringhisarm.Thearmhadtobecutoff.

Aftertheaccident,Murraydecidedtoreturntohishomeland.Onthereturnjourney,twoofhiscompanionsdiedmysteriously,andtwoservantswhohadhandledthemummyalsopassedaway.Thenow-terrifiedMurraydecidedhewouldgetridofthecursedcaseassoonashearrivedinLondon.AladyheknewnamedJanetJonessaidshewouldlikeit,sohegaveittoher.Shortlyafterwards,Jones’motherdied,andsheherselfcaughtastrangedisease.Shetriedreturningthemummy,butnaturallyMurrayrefusedit.Intheend,itwaspresentedtot