阅读下面短文，掌握其大意，然后从36～55各题所给的四个选项（A、B、C和D）
中，选出最佳选项。
Itisalreadyhometowhales，sealsandpolarbears，butsoontheArctic（北极）mustfind 1 forsomeChinesevisitors．
Ateamofninescientistswill 2 totheArcticthismonthtomarktheopeningofChina's 3 Arcticscientificresearchstation，SOA（theStateOceanicAdministration（国家海洋局）has 4 ．
Constructionofthestationfinishedawhile 5 ，butoperationswereheld 6 duringthepolarnight， 7 normallyrunsfromlateOctobertotheendofFebruary． 8 thisperiod，thesunnever 9 overtheArctic．Andfrommid-JulytotheendofAugust，thesunneversets，atime 10 aspolarday（极昼）．
Withterritories（版图） 11 farupintothenorthernhalfofthelobe，China 12 Arcticstudiestolearn 13 aboutitsclimaticandenvironmentalchanges．Manyofthese， 14 sandstormsandheavydroughts，arebelievedtohave 15 todowiththeArctic．
Researchteams 16 theareain1999and2003，butthenewstationwillallowscientiststostudytheArcticin 17 depth．
Thestationisatwo-storeybuildingand 18 alaboratory，office，readingroom，bedroomandstoreroom．Itcanhold20to25researchers．“Itwillbe 19 greatsupporttothescientists'researchthere，”saidXiaLimin，anofficerinSOA．
ThisyeartheSOAalsoplanstoupgrade（提升）twoexistingscientificbasesintheAntarctic（南极洲）．Theyare“GreatWall”，whichwassetupin1985，and“zhongshan”， 20 fiveyearslater．
1．
[]
A．house
B．hotel
C．palace
D．room
2．
[]
A．journey
B．travel
C．trip
D．tour
3．
[]
A．first
B．second
C．third
D．fourth
4．
[]
A．told
B．spoke
C．announced
D．published
5．
[]
A．before
B．later
C．after
D．ago
6．
[]
A．forward
B．toward
C．back
D．ahead
7．
[]
A．which
B．throughwhich
C．that
D．where
8．
[]
A．D
