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1、 雅思阅读模拟试题精选 1. Washing, uhing an varnshing fssis l tanda conservatiotreatent use by many fosilhue an mseumcrators ke vastly rede tchaceof reoerignciet DNA. 2. Insea, ecavaos shu be handlngalet some of their bot with gloe， and fezin sales a teyrefod， diand al，conludes aer in th Proeedins o th Natia A
2、caemy Sences today. 3. Although mny paetolgiss knowanecdoall hat th ishbestay touphe oddsfetrcting oo NA， Eva-Mr Geil f he Jacques Mo Istittein aris， Frace， nd her colleages have nw son juthw iportat cnservation pre ca be. hsormation, h say,eedsto behmmere h amon te ople whoare atully ou h fieldiggi
3、n po. .eig andherolleaues ked a 3,00earold fosil ones belonginto a sine individual o an xtint catlespeci,caleda archs. h folwre dgu ata it i France t to iffre ties eite i 1947， and stordin useum collction， oin , d coserved i sterileconti t - o 5.Th teams ttemps toetctDN frm e 97 bones al filed he ne
4、y xcaated fossi, hoever， all yiededDNA. . Beause th bonehadbee bre or the ae aount time, an in esam condton,the onservationeh had o beto amayGeigl. As much DNAwasderded inthe57 yas s n the ,20 years befoe, she sysWh n, ahot 7. ecause maylaeontoloiss base their wrk on tape o fosls aloe, thir etods fn
5、ertin ar not eignd tpreerve DNA, Geigl exlains. 8 The bigges probleis how they ae cland.Fosls ar ofen washedtogthe on-sie a l at，which c allw wat and contaminnts in te fm ctoary DNA t pereeint the porous bones. Nt olis th autheniDN getting ashd out, utconatio isgetng ashed i, sas eig. 9.Mot ancentDA
6、 secaliss knowthisaread， saysHerik Poar， an evoonay geeticist a MMaster nivrsit iOtario， Candautha doesnt meathat best patihs beco widepraamongthoe acly ind he fossls. 10.etin oldf ossi th havbee prered with therA i mn rlis on closerelionships etwen lab-baed geeticisandhe cvatos，saypaaeogentiit Svan
7、te P?？bo o the Max PlankIstitut or Eoltionary thrplogy Lepg, Germany. Adtaoly ocus xcepal ases, he sas. 1. P？?bo team， wichha ensequencig Nanderthl DN， cnnuallyfaces theroblems. henou wat o td anient hma and Neanethalremans，theres a big issuofcontaminto ith coteporary man DA， e says.12.This esnt eat
8、at allmuumspecimens are ftal flawed, noe?？bo. TeNenehal osils that wr reentlysequenced n i onla, fr example，d been part o museum collectotred th traitonala.ButP？os kento see smplesof ossils rom eemajo ind preserved lnewith Geigls recommendatns utn cse. Wm ad et 14 Much hu cltural evelenttook ace n t
9、merte ron. DNA e ot surwel in waenironmens i hfrsplce, an canvanswhen fossis are wahed and tread For tireason,Gig ays, mostacnDNA tieshaebeen don on prafos se, sch as the wooly mmoth,or on reainseltrd from the eent inol caes cing cavebear adNatal fosils. Beter conservain methds, and a focusonfrfosls
10、， coud oos DNA extractionfrm oedcate spin， as Geigl ndh col shed ore lgt o hetor ofhumanevolution（640 wd nature ) GlssayPalaeontologist 古生物学家urocs 欧洲野牛Nendethal (人类学)尼安德特人,旧石器时代的古人类。 Prmafrst （地理)永冻层 - estions 16Aswrthe follonguestins by sing NOETH HREWORDS fr each ns. 1. How did pople traditionay e
11、atfosil?2 Wht sugesions do Geigl and herollges ge onwhat sho be doe when fossis arefond? 3 Whtproblm may beosediffssil esae washed n-site?Name ON. 4. Wha charctrsti do osilboneshav to mk them suceptble tobe conaminted wit ceorary DNA whee a wase？5. Watcoudbeeter unrstodhe conservtion retmnt areimpro
12、ed？ 6. The passage mentiond sevraanimalspcs tied by searcher. How manyo tem aeetined? Qstns -1 D tefollowing staemnsagree w the ifomationenin teasae?Plasewrite TRE if te stamen gres wih hrer ALSE i the staemen de nt agre wih te rNOT GIVN if he is no informatinabout i nthe assage .I teir perpublihed he Pceg f he Natial Academyof Scences , eig and her olla ave showwhat consr
