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1、Unit4Astronomythescienceofthestars.阅读理解AHumanbeingsareinforadoubletreatinJanuarywiththeappearanceoftwosupermoons.ThefirstonerisesonthenightofNewYearsDay.Thesecondcomesonthelastnightofthemonth,endingupwithalunareclipse(月食).Thatistheendofatrilogy(三部曲)ofbigmoontreatsthatbeganinDec.3withafullcoldmoon.Th
2、eJan.1supermoonwillbethebiggestoftheyear.Themoonwillappeartobeoversizedforafewnightsafterthat,thoughitwillnolongerbeafullmoon.AsupermoonisafullmoonthatappearsattheclosestpointinthemoonsorbittoEarth,about14percentlargerand30percentbrighterthanfullmoonsthatappearatthefarthestpointintheorbit.Supermoons
3、hangaroundallnight,areeasytoseeandarenotdamagingtotheeyes,nomatterhowlongyougazeatthemoon.ForthosewhomaymissthenightofJan.1,anevenmorecharmingsupermoonwillriseonthenightofJan.31.Thatwillbethesecondfullmoonofthemonth,whichisusuallycalleda“bluemoon”becauseadoublefull-moonmonthoccursessentiallyonceinab
4、luemoonaboutevery2.5years.Abluemoonisevenrarerwhenitsasupermoon.Butthatwontbetheonlyraritythatnight.Thesuperbluemoonwillalsooccurduringatotallunareclipse.Ifskiesareclear,thetotaleclipsewillbevisiblefromeasternAsiaacrossthePacificOceantowesternNorthAmerica.Lunareclipsesmakemoonsappearblood-redbecause
5、ofthewaytheblockedsunlightbends,whenEarthmovesbetweenthesunandthemoon,blockingthesunslightfromreflectingoffthemoon.Soprepareyourselfforthesuperbluebloodmoononthenightofthelunareclipse.Togetthefulleffectofthelunareclipse,watchatmoonset.1.Whatdoestheunderlinedword“That”inParagraph1referto?A.Thelunarec
6、lipse.B.TheNewYearsDay.C.ThesupermoonofJan.31.D.Thebiggestsupermoon.2.WhatcanwelearnaboutthesupermoononJan.31fromthetext?A.Itwillbeasuperbluemoon.B.Itwillbeginwithalunareclipse.C.Itwillbeobservedallovertheworld.D.Itwillbethebiggestmoonoftheyear.3.Whatdoestheauthoradviseobserverstodoaboutthelunarecli
7、pseonJan.31?A.Watchitwhenthemoonsets.B.Decidethespotfirstwhentheywatchit.C.Filmthewholelunareclipsewithmobilephones.D.Preparesunglassesbecausethemoonistoobright.4.Whichofthefollowingcanbethebesttitleforthetext?A.DoubleNewYearsupermoonsB.ThedefinitionofasupermoonC.SupermoonswithalunareclipseD.Therari
8、tyofthebluesupermoonB“Itsreallyabreakthrough,”saidBritishscientistGuillemaboutthediscoveryofaplanet“moreorless”likeEarththatisorbitingProximaCentauri,thestarnearesttooursolarsystem.Proximab,or“Earth”asyoucouldcallit,isalittlebiggerthanourEarth,anditsyearsonlytake11days.Also,sinceitissomuchclosertoit
9、sreddwarf(矮星)starthanwearetothesun,theskyonitsworldisorangewithoutanyblueatall,creatingaforeversunseteffect.Therearealotofquestionsforlifeformsthatcouldliveonthisnewplanet.AstheChicagoTribunewrote:“Doyouhavepoetry?Superheroes?Television?Diets?Meanbosses?Doyouhaveanyinterestinvisitingotherworlds?Ifso
10、,putEarthonyourMust-Seelist.”ThediscoveryoftheplanetmadeuswonderifanyonehadseenorheardofthespacepostcardsfromPioneer10andPioneer11spaceprobes(探测器),sentupintospacein1972andthenextyear.Togetherwiththeprobeswerepicturesofamanandawoman,alongwithdiagramsofthesolarsystem.GoldrecordsweresentupintospaceonVo
11、yagerprobesin1977.Ifaliens(外星人)onProximabhadplayedtherecords,theywouldhavefoundhumanvoicesandpicturesthatshowedtherichdiversityofEarth.ItmightnotbetimetoplanavisittoProximabjustyetevenifithasanatmosphereasfirst,wewouldneedtoinventawaytogetthereinlessthanthe78,000yearsitwouldtakeat36,000mph.“Proximab
12、lookstouslikeapromisingPlanetB,justincasethingsgoreallysouthonthisblueplanet,”theChicagoTribunewrote.5.WhatdoweknowaboutProximab?A.Ithasanorangesky.B.Itisclosertothesun.C.Ithasnosunrise.D.ItisaslargeasEarth.6.WhatcouldbefoundonthegoldrecordssentupbyVoyagerprobesin1977?A.Picturesofacouple.B.Mapsofthe
13、solarsystem.C.Recordedsounds.D.Severalpostcards.7.Whatdoestheunderlinedsentenceinthelastparagraphprobablymean?A.Earthmovestothesouth.B.ProximabgetsclosertoEarth.C.Situationchangesfavourably.D.ConditionsonEarthgetworse.8.WhatwastheattitudeoftheChicagoTribunetowardsthediscoveryoftheplanet?A.Excited.B.
14、Worried.C.Uninterested.D.Proud.语法填空阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。ThecarrierrocketsentaShenzhou11spacecraft(航天器)withastronautsChenDongandJingHaipengintospace.TherocketwasfiredfromtheJiuquanSatelliteLaunchCentre1.theGobidesert.AftertwodaysinEarthsorbit,thespacecraft2.(be)tolinkupwithChinasspacelabor
15、atory,calledtheTiangong-2,3.namemeans“HeavenlyPalace2”.Thelab4.(place)intoorbitlastmonth.Theastronautswillspend30daysontheTiangong-2.Theyplantoperform5.(science)andspacecraft-relatedexperimentsandtestsystemsforafuturespacestation.In6.words,theTiangong-2laboratorywillnotbepartofthatspacestation.Itsma
16、ingoalistopractisethetechniquesandthe7.(technology)thatwillbe8.(use)tobuildandoperatethatfinalspacestation.ItispredictedthattheChinesespacestationwillbebuiltmostlybymachines.Chinahopestohavethespacestation9.(complete)by2022anditisexpectedtooperateforatleast10years.Chinaalsoplanstolandaprobe(探测器)onMarsby2020.Untilnow,Chinahascompletedatotaloffivemannedspacem
