2023年中考英語時事熱點閱讀專練

熱點27彗星以及流星與流星雨

一、閱讀理解

1

Sinceancienttimes,humanbeingshavelookedupatthenightsky.Comets（彗星）andmeteors（流星）flying

throughtheblacknesswereseenassignsfromthegods.Theywereusedtotellthefutureofhumanlives.

In2013,ameteoriteshowerhitanareainRussia.Itinjuredaround1,200people.Inancienttimes,thiswould

havebeenastrangeandterribleexperience.Today,thought,scienceofferssimpleexplanationsfortheoccurrence（

事件）.

Meteoritesaresmallpiecesofdebris（碎片一）thatfloataroundinspace.Sometimes,theycomenearaplanet,

suchasEarth.Whentheyenterouratmosphere,theyoftenheatupandbecomeverybright.Thisiswhytheyare

sometimescalled“fireballs”.Theyareusuallymadeofmetals,suchasiron（鐵），andotherminerals（礦物）.The

Russianmeteoriteswerestony,withironmakingup10percentofthem.

Meteoriteshowers,suchasthatinRussia,happenwhenalargemeteorenterstheEarth'satmosphereand,due

toheat,breaksupintosmallparts.Mostoftheseareverysmall—smallerthanagrainofsand—andsodon't

evenmakeittotheground.Butotherscancausealotofdamage.

ThemeteorinRussiaweighed10tonswhenitenteredouratmosphere,andbrokeupabout20-30miles

（30-50km）aboveground.Theskywasfilledwithbrightlightsandloudnoises.Manywindowswerebroken.The

damagecostRussiaaround206millionyuan.

1.Whatdidpeopleinancienttimesthinkwhentheysawameteoriteshower?

A.Itwasawonderfulsight.B.Itwascommoninnature.

C.Theyrespecteditasagod.D.Theyfeltpuzzledandscared.

2.WhichofthefollowingisNOTtrueaboutmeteorites?

A.Theyfloataroundinspace.B.TheyoftenheatupwhenenteringEarth.

C.Therearefiresaroundthem.D.Theyareusuallymadeofmetals.

3.WhenalargemeteorcomesintotheEarth'satmosphere,.

①meteoriteshowershappen@itbreaksupintosmallpieces

（3）itfallstothegroundaswhole?itseldomcausesseriousdamage

A.①②B.①③C.①④D.②④

4.WhichtopicdoesthestoryNOTtalkabout?

A.Howmeteoriteshowershappen.B.Howtostopmeteoriteshowers.

C.ThemeteoritesinRussia.D.Thedamagemeteoritescancause.

2

Therearelotsofobjectsthatweseeinthesky.Duringthedayweseethesun.Afterthesunsetintheevening,

weseemostlythestars.Notallthelightsintheskythatweseearereallystars.

Ofcourse,weseethemoon.Someoftheotherlightsintheskyareplanets（行星）.Planetsgoaroundthesun

likeearthdoes.

Sometimeswecanseeashootingstar.Shootingstarlookslikeastarthatismovingquicklyacrossthesky.

Somepeoplebelievethatseeingashootingstarwillbringthemgoodluck.It'shardtofindshootingstarbecause

theyrunfast.

Thecorrectnameforshootingstarismeteor（流星）.Spacehaslotsoflittleobjects.Thesecanberocksin

spacefromoldplanets.Theseobjectscanbeverysmall,theyarecalledmeteorites（隕石）.Whenmeteoritegets

closetotheearth,itgetspulledtowardstheearthbygravity（重力）.Earthissurroundedbyatmosphere（大氣層）.

Atmosphereismadeupofairandclouds.Meteoriteburnsintheearth'satmosphere.Thismakestheshortbright

movinglightinthenightsky.Ameteoritethenturnsintometeor.

5.Atnighttheskyisfilledmostlywith.

A.themoonB.theplanetsC.thestarsD.thesun

6.Fromthepassage,wecanknow.

A.allthelightsintheskythatweseearereallystars

B.spacehaslotsoflittleobjectsandtheycanberocksfromoldplanets.

C.whenameteoriteisneartheearth,itgetspushedfromtheearthbygravity.

D.shootingstarlookslikestarthatismovingslowlyacrossthesky.

7.Howdoesameteoriteturnintoameteor?Pleaseputthefollowingsentencesinorder.

@Itispulledtowardstheearthbygravity.

②Theburninggivesoffbrightlight.

③Ameteoritegetsclosetotheearth.

?Itburnsintheearth'satmosphere.

A.③④②①B.③④①②C.③0?②D.③②①④

8.Wherecanweprobablyreadthispassage?

A.Inadiary.B.Inasciencemagazine.

C.Inanadvertisement.D.Inanovel.

3

BOOM!Thafsawordweoftenusetodescribealoudsound.It9salsopartoftheterm"sonicboom（音爆）”,

whichissomethingthathappenswhenairispushedsostronglyandquicklythatitcreatesaloudnoise.

OnMarch20,araredaytimemeteor（流星）createdasonicboomoverpartsoftheUKandFrance,according

toLiveScience.Themeteorflewthroughtheskysofastthatitcouldhardlybeseen-butitcoulddefinitelybe

heard.

Sohowexactlyaresonicboomsmade?Youcanthinkofairasbeinglikewater.Whensomethingmoves

throughwater,youcanseeripples（波紋）.Ifiheobjectmovesveryquickly,theripplesstarttorunintoeachother.

Thesamethinghappensintheair,evenifitcan'tbeseen.Whentheobjectmovesfasterthanthespeedof

sound,theairispushedhard,anditcompresses（壓縮）liketheripplesonwater.Thiswillcreateasoundwavethat

isveryloud,whichisasonicboom.

Infact,lotsofthingscanmakesonicbooms.Whenyougototheparkandseepeopleplaywithwhipsandtops

（鞭子和陀螺）,youmighthearatinysonicboomwhentheycrackthewhip.Aircraftthattravelfasterthanthe

speedofsoundcanalsomakesonicbooms.

Astrongsonicboomcancausedamagetowindowsorbuildings,althoughthepossibilityofthisisverylow,

accordingtotheUSAirForce.Theloudsoundcanalsodisturb（影響）peopleonthegroundandevencause

hearingloss.That'swhysupersonicaircraftareonlyallowedintimesofwar.

9.Whichofthefollowingwouldn'tcauseasonicboom?

A.ameteorB.whipsandtopsC.supersonicaircraftD.waterripples

10.Inparagraph3,thewritermentionswaterto.

A.helpexplainhowasonicboomhappens.

B.describewhatwaterrippleslooklike

C.provethatwatercanmovelikeair.

D.explainthedifferencesbetweenwaterripplesandsonicbooms.

11.Accordingtothepassage,asonicboomissomethingthat.

A.happenswhenairispushedsoftlyandslowly

B.neverappearsasaloudsound

C.maycausedamagetoyourhouse

D.canbeseenwhenithappens

12.Onwhichwebsitecanweprobablyreadthispassage?

A./historyB./sound

C.www.C/powerD.www.airfbrcexom/aircraft

4

I'mVictor.Onmyseventhbirthday,mymomgavemeabookaboutstars.Thatwasthebeginningofmy

lifetimehobby.

Ialwayswentoutsidewithmymomoncleannightsandlookedatthesky.Indifferentseasons,wesaw

differentgroupsofstars.Sometimeswesawstarsshootingbrightly（明亮1也）acrossthesky.Howbeautifulthey

were!

Studyingthestarswasgreatfunforme.WhenIlearntalittleaboutthem,Iwantedtofindoutmoreandmore.

Nowitismyjob.IhostaTVshowcalledTheSkyatNight.IusewhatIknowtotellpeopleaboutthestarsina

greatway.IamhappybecausemyTVshowstartedover50yearsago,nowit'sstillpopular.

NowIamseventy-fiveyearsold.Actually,Ithinkyoucanturnyourhobbyintoyourjobtoo.Anybodycan

maketheirdreamscometrue.Youjusthavetoenjoywhatyoudo!

13.Theunderlinedwordkishooting^^means.

A.飛過B.閃耀C.眨眼D.唱歌

14."Studyingthestarswasgreatfunforme.^tellsus.

A.VictorwasinterestedinstarsB.Victorlovedthebookverymuch

C.VictoroftensawdifferentstarsD.VictorlovedhisTVshow

15.TheskyatNightisoveryearsold.

A.7B.50C.65D.75

16.Thewriterwantstotellusthat.

A.hobbiesarejustjobsB.TVshowhelpsusalot

C.weneedtoenjoywhatwedoD.readingisimportantinourlife

5

Ifyoulookattheskyonenightandseesomethingmovingandshiningthatyouhaveneverseenbefore,it

mightbeacomet（彗星）.

Acometsometimeslookslikeastar.Likeaplanet,acomethasnolightofitsown.Itshinesfromthesunlight

itreflects（反射）.Liketheearth,acometgoesroundthesun,butonamuchlongerpath（軌道）thantheearth

travels.

Ifacometisn'tastar,whatisitthen?

Somescientiststhinkthatalargepartofacometiswaterfrozenintopiecesoficeandmixedwithironand

rockdustandperhapsafewbigpiecesofrock.Whensunshinemelts（融化）theiceinthecomet,greatcloudsof

gasgotrailingafterit.Theseclouds,togetherwiththedust,formalongtail.Manypeopleperhapshaveseena

comet.Howevernooneknowshowmanycometsthereare.Theremaybemillionsofcomets,butonlyafewcome

closeenoughforustosee.

AnEnglishmannamedEdmundHalley,wholivedfrom1656to1742,foundoutalotaboutthepathsthat

cometstakethroughthesky.Somecometsmoveoutofoursightandnevercomeback.Otherskeepcomingbackat

regulartimes.AbigcometthatkeepscomingbackwasnamedafterHalleybecausehewastheonewhoworkedout

whenitwouldcomebackagain.MaybeyouhaveeverseenHalley'sCometsbecausethelasttimeitcamecloseto

thesunandtheearthwasintheyear1986.Thenpeopleallovertheworldwereoutsideatnighttolookatit.You

willprobablybeabletoseeHalley'sCometswhenitcomesneartheearthagain.

17.Acometislike.

A.sunB.moonC.sunlightD.theearth

18.Alargepartofacometis.

A.waterandrock

B.waterfrozenintopiecesoficeandmixedwithiron

C.ice,ironandrockdust

D.onlyafewbigpiecesofrock

19.Maybemanypeople.

A.haven'tseenanycometsB.haveseenallcomets

C.haveseenacometatdaytimeD.haveseenacomet

20.Somecometskeepcomingback.

A.atanytimeB.atnoonC.atregulartimesD.atdaytime

21.Halley'sCometscameback.

A.in1990B.in1980C.in1986D.in1989

6

Comets（彗星）arepartsofoursolarsystem.Liketheplanets,theygoaroundthesun.

Butcometsarenotmadeofsolidrockslikeplanets.Acometisaballofdust,stones,andice.Manypeople

callcometsdirtysnowballs.

The“snowbaU''maybeonlyafewmilesacross.Butwhenthesunheatsthe“snowball,“muchofitischanged

togases.Thegasesspreadoutandformthecomet'shead,whichmaybethousandsofmilesacross.

Acometmovesfastinitstriparoundthesun.Butwhenweseeit,thecometdoesnotseemtomove.That's

becauseitissofaraway.Themoonmovesfast,butwhenyoulookatit,youcan'tseeanymotion（運動）.Thafs

becausethemoonisfaraway.

Eachyearastronomers（天文學家）discovernewcomets.Someofthemareseenonlyonce.Theymakeone

triparoundthesunandthengoawayoutintospace.Thesun'sgravitycannotholdthem.

Othercomets,likeHalley,keepreturning.Theyhavebeencapturedbythesun.Halley'searliestvisitwas

probably3,000yearsago.Itmaykeepreturningforanother3,000years.

Buteverytimeacometgoesaroundthesun,thecometlosespartofitself.Gasesanddustarepulledoutofthe

comet.That'swhyHalleyisnowdimmer（暗淡的）thanitusedtobe.Nexttimeitvisitsus,in2062,itmaybe

evendimmer.Eachvisititmaygetdimmeranddimmer,untilitfinallydisappears.

22.Whatisthispassagemostlyabout?

A.Cometsandthesun.

B.Whycometsarelikesnowballs.

C.Whodiscoveredthefirstcomet.

D.Factsaboutcomets.

23.Howdoesthewriterhelpthereaderunderstandwhatacometlookslike?

A.Bytellingaboutafamousone.

B.Byexplaininghowfarawayitis.

C.Bydescribinghowfastitmoves.

D.Bydescribingitasadirtysnowball.

24.Whatisthemostlikelyreasonthewriterwrotethispassage?

A.Togiveinformationaboutcomets.

B.Totellreadersaboutfamouscomets.

C.Toexplaintheimportanceofcomets.

D.Toencouragereaderstolookfbrcomets.

7

Theplanetsaren'ttheonlywanderers（漫游者）ofthesky.There'resomethingsevenfartherandlonger.Long

afterpeoplewerenolongerafraidofplanets,theystillthoughtthecomets（彗星）werebadobjectsthattraveledin

thesky.Theywereafraidthatthecometswouldsuddenlylandontheearthandhurtthem.

But,infact,evenifacometdidhittheearth,nothingmuchhappened.Acometisreallyaharmless（無害的）

thing.

Cometshaveroundheadsandlongtails,andtheyareverybright.Sometimestheylooklikeheadswithlong

hairflyingwiththem.Thafswhythey'recalledcomets.Cometmeanslong-haired.

Likethestarsandplanets,cometsarefaraway.Butwecanknowitssize.Theheadofasmallcometisaswide

asthePacificOcean.Andabigcomet'sheadistentimesasbigastheearth.Itstailismillionsofkilometerslong.

Thenwhywouldn'tthegreatbigthinghurtusifithittheearth?Becauseitisn'tsolid.Ifsthinlikecloud.Itstailis

nothingbutbrightgas.Anditsheadismadeofsmallpiecesandtheycouldnothurttheearth.

Somecometscanbeseenforafewmonths.Thentheygoaway.Someofthemcomebackinacertainnumber

ofyears.Someareneverseenagain.

Perhapsthesecometsthatneverreturnhavebrokenintopieces.Forsomethinkthatshootingslars（流星）

arepiecesofbrokencomets.

25.Peoplewereafraid.

A.cometsaredifferentfromplanets

B.cometstravelinthesky

C.cometsaremuchbiggerthantheearth

D.cometscouldhittheearth

26.Cometshavelongtaillike,sowecallthemcomets.

A.longhairB.roundheadsC.rounddishesD.widewings

27.Fromthepassageweknowthetailsofcometsaremadeof.

A.waterB.solidC.gasD.smallstones

28.Theunderlinedword"astronoiners^maymeaninChinese.

A.心理學家B.藝術家C.天文學家D.考古專家

29.WhichofthefollowingisTRUE?

A.Acometisakindofplanets.

B.Cometsarealltentimesasbigastheearth.

C.Peoplecanhardlyseecomets.

D.Shootingstarsmaycomefromthebrokencomets.

二、完型填空

MariaMitchellwasbornin1818duringatimewhenmanypeoplethoughtthatwomandidnotneedtolearn.

But,Mitchell'sfatherthoughtthatbothboysandgirlsshouldgotoschool.30,hetutoredherathomeas

wellassenttohertoschool.

MitchelPsfather,recognizingherinterestinastronomy（天文學）atearlyage,encouragedherinterestand

taughtherhowtouseatelescope.Asan31,sheworkedasthefirstlibrarianattheNantucketAtheneum

libraryfrom1836to1856,allthewhilestilllookingattheskyatnight,studyingthestarsandtheplanets.

InOctober1847,Mitchelsawabrightstarthroughthetelescope.Shewassurethatshehad32seen

thatstarbefore.Excited,sherantotellherfather.Shecarefullywrotenotesaboutthestar.Thenextnight,it

lookedasifthe"star"had33.Italsoseemedtohaveatail（尾巴）!Now,Mitchellwassurethatshehad

foundacomet,notastar.

Atehtime,thekingofDenmarkwasofferingaprizetothefirstpersontofindacometthatcouldonlybe

seenthroughatelescope.Mitchellwontheprize!Itwasagoldmedal.But,shewonsomethingelsetoo.Shewon

people'srespectwhentheysawthatshewas34herwork.Later,theAmericanAcademyofArtsand

Sciencesvotedherinasitsfirstfemalemember.

In1856,anewcollegejustforwomenopened.ItwascalledVassarCollege,andMitchellbecameaprofessor

there.Shewasthefirstfemaleprofessortoteachastronomy,orthescienceofstarsandplanets.Becauseofher,

femalestudentslearnedthattheycouldbescientiststoo.Womencouldmakevaluable35tohelp

understandourworld.

30.A.InsteadB.InadditionC.SoD.Afterall

31.A.adultB.agentC.astronautD.audience

32.A.onceB.neverC.probablyD.certainly

33.A.disappearedB.fallenC.movedD.grown

34.A.famousforB.honestaboutC.responsibleforD.seriousabout

35.A.decisionsB.discoveriesC.mistakesD.connections

三、短文漢語提示填空

請用適當的詞完成這篇短文，每個空只能填寫一個形式正確、意義相符的單詞。

Whenyouareabouttodosomethingbrave,acheerfulwishof“Goodluck!”fromafriendcanbehelpfuLBut

ifyouthinkyouneedlotsofluck,whatelsemightyoudo?

IntheUKandUStherearesomestrangetraditionsforbringingyourselfalittlemoregood36..Someare

hundredsofyearsoldandsomeare37.newer.

Haveyouheardthesaying“Whenyouwishuponastar"?Ifyouarelookingupattheskyonaclearnight

andyou38.asuddenflashoflight,itisprobablyashootingstar!Seeingonedoesn'thappenveryoften.The

sayinggoesthat39.youseeoneyouhavebeenverylucky,andsoifyoumakeawish,itwillcome40..

Maybeyouhaveheard41,theluckyrabbit'sfoot.Somepeoplebelievethatrabbitsarelucky42.,sothey

carryapartoftherabbit,itsfoot,forgoodluck.Thereareall43.ofstrange,unclearrulesaboutwhichofthe

rabbit'sfeetistheluckiest.ltis44.thatthisgoodlucktraditionistheoldestoneofall.However,asthefunny

sayinggoes,"Dependontherabbit'sfootifyouwill,butremember45.didn'tworkfortherabbit!”

四、短文首字母填空

根據短文內容及首字母提示，填寫所缺單詞，使短文意思完整。每空限填一詞。

Theearthoncehasbeen“ruled"byakindofanimalscalleddinosaurfrom65to230millionyearsago.Then

thedinosaursdisappearedwitho46.hugebones,eggsorfootprintsbeingleftbehind.Whatdidthedinosaurslook

like?Whydidtheydieout?Scientistsspent10yearsc47.alotofinformationofdinosaurstoshowtotheworld.

Dinosaursareanimalsthathadmanysizesands48..Someofthemwerelong-necked,somewerefierce（兇猛

的）,somef49.inthesky,andotherslivedintheocean.Somedinosaursateplants;someatemeat;othersmayeat

b50..Thebiggestdinosaurswereastallasfive-storey-tallbuildingswhilethes51.wereonlyasbigaschickens.

Scientistshavetriedtoe52,whythedinosaursdisappeared65millionyearsago.Somethinkthat65million

yearsago,acometfelldowntotheEarth.Itfilledtheskywithdustwhichblockedthesunlight.TheEarthbecame

socoldthattheplantsdied.Dinosaurshadnothingtoeat.Sotheyalldied,too.Butothersbelievedinosaursdie

becauseofpoisonousplantsorgases,orclimatewarmingorcooling.Theyallagreethateventuallythedinosaur

couldnotgetusedtothec53.inlivingconditionsontheEarth.

Peoplethinkdinosaursarea54.sotheystarinmanymovies.Buttoscientists,howthedinosaursdisappeared

ismoreimportantbecausethecausethat155.thedinosaurstodieoutmightalsobeadangertohumanbeings.

2023年中考英語時事熱點閱讀專練

熱點27彗星以及流星與流星雨

一、閱讀理解

1

Sinceancienttimes,humanbeingshavelookedupatthenightsky.Comets（彗星）andmeteors（流星）flying

throughtheblacknesswereseenassignsfromthegods.Theywereusedtotellthefutureofhumanlives.

In2013,ameteoriteshowerhitanareainRussia.Itinjuredaround1,200people.Inancienttimes,thiswould

havebeenastrangeandterribleexperience.Today,thought,scienceofferssimpleexplanationsfortheoccurrence（

事件）.

Meteoritesaresmallpiecesofdebris（碎片一）thatfloataroundinspace.Sometimes,theycomenearaplanet,

suchasEarth.Whentheyenterouratmosphere,theyoftenheatupandbecomeverybright.Thisiswhytheyare

sometimescalled“flrebaHs''.Theyareusuallymadeofmetals,suchasiron（鐵），andotherminerals（礦物）.The

Russianmeteoriteswerestony,withironmakingup10percentofthem.

Meteoriteshowers,suchasthatinRussia,happenwhenalargemeteorenterstheEarth'satmosphereand,due

toheat,breaksupintosmallparts.Mostoftheseareverysmall—smallerthanagrainofsand—andsodon't

evenmakeittotheground.Butotherscancausealotofdamage.

ThemeteorinRussiaweighed10tonswhenitenteredouratmosphere,andbrokeupabout20-30miles

（30-50km）aboveground.Theskywasfilledwithbrightlightsandloudnoises.Manywindowswerebroken.The

damagecostRussiaaround206millionyuan.

1.Whatdidpeopleinancienttimesthinkwhentheysawameteoriteshower?

A.Itwasawonderfulsight.B.Itwascommoninnature.

C.Theyrespecteditasagod.D.Theyfeltpuzzledandscared.

2.WhichofthefollowingisNOTtrueaboutmeteorites?

A.Theyfloataroundinspace.B.TheyoftenheatupwhenenteringEarth.

C.Therearefiresaroundthem.D.Theyareusuallymadeofmetals.

3.WhenalargemeteorcomesintotheEarth'satmosphere,.

①meteoriteshowershappen@itbreaksupintosmallpieces

（3）itfallstothegroundaswhole④itseldomcausesseriousdamage

A.①②B.①③C.①④D.②④

4.WhichtopicdoesthestoryNOTtalkabout?

A.Howmeteoriteshowershappen.B.Howtostopmeteoriteshowers.

C.ThemeteoritesinRussia.D.Thedamagemeteoritescancause.

【答案】l.D2.C3.A4.B

【解析】文章講訴了流星雨的一些情況。

1.句意:在古代，當人們呢看見流星雨的時候，怎么想的。根據Inancienttimes,thiswouldhavebeenastrange

andterribleexperience.故選D

2.句意：關于流星哪個不正確？根據Meleorilesaresmallpiecesofdebris（碎片）thatfloataroundinspace.可知

A是對的；根據Whentheyenterouratmosphere,theyoftenheatup可知B是對的；根據Theyareusuallymade

ofmetals,可知D是對的；故選C

3.句意：當一個大流星進入到地球大氣層的時候-一。根據Meteoriteshowers,suchasthatinRussia,happen

whenalargemeteorenterstheEarth'satmosphereand,duetoheat,breaksupintosmallparts.故選A

4.句意：這個故事沒談論哪個話題。根據Meteoriteshowers,suchasthatinRussia,happenwhenalargemeteor

enterstheEarth'satmosphereand,duetoheat,breaksupintosmall和otherscancausealotofdamage.可知A/C/D

都提到了；故選B

2

Therearelotsofobjectsthatweseeinthesky.Duringthedayweseethesun.Afterthesunsetintheevening,

weseemostlythestars.Notallthelightsintheskythatweseearereallystars.

Ofcourse,weseethemoon.Someoftheotherlightsintheskyareplanets（行星）.Planetsgoaroundthesun

likeearthdoes.

Sometimeswecanseeashootingstar.Shootingstarlookslikeastarthatismovingquicklyacrossthesky.

Somepeoplebelievethatseeingashootingstarwillbringthemgoodluck.It'shardtofindshootingstarbecause

theyrunfast.

Thecorrectnameforshootingstarismeleor（流星）.Spacehaslotsoflittleobjects.Thesecanberocksin

spacefromoldplanets.Theseobjectscanbeverysmall,theyarecalledmeteorites（隕石）.Whenmeteoritegets

closetotheearth,itgetspulledtowardstheearthbygravity（重力）.Earthissurroundedbyatmosphere（大氣層）.

Atmosphereismadeupofairandclouds.Meteoriteburnsintheearth'satmosphere.Thismakestheshortbright

movinglightinthenightsky.Ameteoritethenturnsintometeor.

5.Atnighttheskyisfilledmostlywith.

A.themoonB.theplanetsC.thestarsD.thesun

6.Fromthepassage,wecanknow.

A.allthelightsintheskythatweseearereallystars

B.spacehaslotsoflittleobjectsandtheycanberocksfromoldplanets.

C.whenameteoriteisneartheearth,itgetspushedfromtheearthbygravity.

D.shootingstarlookslikestarthatismovingslowlyacrossthesky.

7.Howdoesameteoriteturnintoameteor?Pleaseputthefollowingsentencesinorder.

@Itispulledtowardstheearthbygravity.

②Theburninggivesoffbrightlight.

③Ameteoritegetsclosetotheearth.

@Itburnsintheearth*satmosphere.

A.③④②①B.③④①②C.③①④②D.③②①④

8.Wherecanweprobablyreadthispassage?

A.Inadiary.B.Inasciencemagazine.

C.Inanadvertisement.D.Inanovel.

【答案】5.C6.B7.C8.B

【解析】本文主要講了流星的形成。它是隕石靠近地球時被重力拉向地球，隕石在地球的大氣層中爆炸，

形成了流星。

5.細節理解題。根據上文第?段”Afterthesunsetintheevening,weseemostlythestars.”可知傍晚日落后，天

空大多充滿/星星，故選C。

6.細節理解題。根據上文第四段“Spacehaslotsoflittleobjects.Thesecanberocksinspacefromoldplanets.^^

可知太空中有很多小物體。這些可能是來自占老行星的太空巖石。故選B。

7.細節理解題。根據上文最后一段Whenameteoritegetsclosetotheearth,itgetspulledtowardstheearthby

gravity....Ameteoriteblowsupintheearth'satmosphere.Thismakestheshortbrightmovinglightinthenightsky.

Ameteoritethusturnsintoameteor.當隕石靠近地球時，它就會被重力拉向地球。一顆隕石在地球的大氣層

中爆炸。這形成夜空中的短而明亮的移動光，隕石就這樣變成了流星。故選C。

8.推理判斷題。縱覽全文，可知本文主要講的是流星的形成，這屬于自然科學范疇，故選B。

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BOOM!That'sawordweoftenusetodescribealoudsound.It?salsopartoftheterm“sonicboom（音爆）”，

whichissomethingthathappenswhenairispushedsostronglyandquicklythatitcreatesaloudnoise.

OnMarch20,araredaytimemeteor（流星）createdasonicboomoverpartsoftheUKandFrance,according

toLiveScience.Themeteorflewthroughtheskysofastthatitcouldhardlybeseen-butitcoulddefinitelybe

heard.

Sohowexactlyaresonicboomsmade?Youcanthinkofairasbeinglikewater.Whensomethingmoves

throughwater,youcanseeripples（波紋）.Iftheobjectmovesveryquickly,theripplesstarttorunintoeachother.

Thesamethinghappensintheair,evenifitcan'tbeseen.Whentheobjectmovesfasterthanthespeedof

sound,theairispushedhard,anditcompresses（壓縮）liketheripplesonwater.Thiswillcreateasoundwavethat

isveryloud,whichisasonicboom.

Infact,lotsofthingscanmakesonicbooms.Whenyougototheparkandseepeopleplaywithwhipsandtops