雅思閱讀練習(xí)五(附標(biāo)準(zhǔn)答案)

1/1雅思閱讀練習(xí)五（附答案）小馬過河為大家準(zhǔn)備了“雅思閱讀練習(xí)五（附答案）”，供各位備考雅思的考生們參考使用，來提高自己的托福成績！免費(fèi)咨詢電話：400-0123-267雅思閱讀題練習(xí)：NewweapontofightcancerAlokJha,sciencecorrespondentThursdayJanuary11,2007TheGuardian1.Britishscientistsarepreparingtolaunchtrialsofaradicalnewwaytofightcancer,whichkillstumoursbyinfectingthemwithviruseslikethecommoncold.2.Ifsuccessful,virustherapycouldeventuallyformathirdpillaralongsideradiotherapyandchemotherapyinthestandardarsenalagainstcancer,whileavoidingsomeofthedebilitatingside-effects.3.LeonardSeymour,aprofessorofgenetherapyatOxfordUniversity,whohasbeenworkingonthevirustherapywithcolleaguesinLondonandtheUS,willleadthetrialslaterthisyear.CancerResearchUKsaidyesterdaythatitwasexcitedbythepotentialofProfSeymour'spioneeringtechniques.4.Oneofthecountry'sleadinggeneticists,ProfSeymourhasbeenworkingwithvirusesthatkillcancercellsdirectly,whileavoidingharmtohealthytissue."Inprinciple,you'vegotsomethingwhichcouldbemanytimesmoreeffectivethanregularchemotherapy,"hesaid.5.Cancer-killingvirusesexploitthefactthatcancercellssuppressthebody'slocalimmunesystem."Ifacancerdoesn'tdothat,theimmunesystemwipesitout.Ifyoucangetavirusintoatumour,virusesfindthemaverygoodplacetobebecausethere'snoimmunesystemtostopthemreplicating.Youcanregarditasthecancer'sAchilles'heel."6.Onlyasmallamountofthevirusneedstogettothecancer."Theyreplicate,yougetamillioncopiesineachcellandthecellburstsandtheyinfectthetumourcellsadjacentandrepeattheprocess,"saidProfSeymour.7.Preliminaryresearchonmiceshowsthatthevirusesworkwellontumoursresistanttostandardcancerdrugs."It'saninterestingpossibilitythattheymayhaveanadvantageinkillingdrug-resistanttumours,whichcouldbequitedifferenttoanythingwe'vehadbefore."8.Researchershaveknownforsometimethatvirusescankilltumourcellsandsomeaspectsoftheworkhavealreadybeenpublishedinscientificjournals.Americanscientistshavepreviouslyinjectedvirusesdirectlyintotumoursbutthistechniquewillnotworkifthecancerisinaccessibleorhasspreadthroughoutthebody.9.ProfSeymour'sinnovativesolutionistomaskthevirusfromthebody'simmunesystem,effectivelyallowingthevirusestodowhatchemotherapydrugsdo-spreadthroughthebloodandreachtumourswherevertheyare.Thebighurdlehasalwaysbeentofindawaytodelivervirusestotumoursviathebloodstreamwithoutthebody'simmunesystemdestroyingthemontheway.10."Whatwe'vedoneismakechemicalmodificationstothevirustoputapolymercoataroundit-it'sastealthviruswhenyouinjectit,"hesaid.11.Afterthestealthvirusinfectsthetumour,itreplicates,butthecopiesdonothavethechemicalmodifications.Iftheyescapefromthetumour,thecopieswillbequicklyrecognisedandmoppedupbythebody'simmunesystem.12.Thetherapywouldbeespeciallyusefulforsecondarycancers,calledmetastases,whichsometimesspreadaroundthebodyafterthefirsttumourappears."There'sanawfulstatisticofpatientsinthewest...withmalignantcancers;75%ofthemgoontodiefrommetastases,"saidProfSeymour.13.Twovirusesarelikelytobeexaminedinthefirstclinicaltrials:adenovirus,whichnormallycausesacold-likeillness,andvaccinia,whichcausescowpoxandisalsousedinthevaccineagainstsmallpox.Forsafetyreasons,bothwillbedisabledtomakethemlesspathogenicinthetrial,butProfSeymoursaidheeventuallyhopestousenaturalviruses.14.Thefirsttrialswilluseuncoatedadenovirusandvacciniaandwillbedeliveredlocallytolivertumours,inordertoestablishwhetherthetreatmentissafeinhumansandwhatdoseofviruswillbeneeded.Severalmoreyearsoftrialswillbeneeded,eventuallyalsoonthepolymer-coatedviruses,beforethetherapycanbeconsideredforuseintheNHS.Thoughtheapproachwillbeexaminedatfirstforcancersthatdonotrespondtoconventionaltreatments,ProfSeymourhopesthatonedayitmightbeappliedtoallcancers.Questions1-6Dothefollowingstatementsagreewiththeinformationgiveninthereadingpassage?Forquestions1-6writeTRUEifthestatementagreeswiththeinformationFALSEifthestatementcontradictstheinformationNOTGIVENifthereisnoinformationonthisinthepassage1.Virustherapy,ifsuccessful,hasanadvantageineliminatingside-effects.2.CancerResearchUKisquitehopefulaboutProfessorSeymour’sworkonthevirustherapy.3.Viruscankillcancercellsandstopthemfromgrowingagain.4.Cancer’sAchilles’heelreferstothefactthatvirusmaystaysafelyinatumorandreplicate.5.Toinfectthecancercells,agooddealofvirusesshouldbeinjectedintothetumor.6.Researchesonanimalsindicatethatviruscouldbeusedasanewwaytotreatdrug-resistanttumors.Question7-9Basedonthereadingpassage,choosetheappropriateletterfromA-Dforeachanswer.7.Informationaboutresearchesonviruseskillingtumorcellscanbefound(A)onTV(B)inmagazines(C)oninternet(D)innewspapers8.Totreattumorsspreadingoutinbody,researcherstryto(A)changethebody’immunesystem(B)injectchemotherapydrugsintobloodstream.(C)increasetheamountofinjection(D)disguisethevirusesonthewaytotumors.9.Whenthechemicalmodifiedvirusintumorreplicates,thecopies(A)willsoonescapefromthetumorandspreadout.(B)willbewipedoutbythebody’simmunesystem.(C)willbeimmediatelyrecognizedbytheresearchers.(D)willeventuallystopthetumorfromspreadingout.Questions10-13Completethesentencesbelow.Chooseyouranswersfromthelistofwords.Youcanonlyuseeachwordonce.NBTherearemorewordsinthelistthanspacessoyouwillnotusethemall.Inthefirstclinicaltrials,scientistswilltryto……10……adenovirusandvaccinia,soboththeviruseswillbelesspathogenicthanthe……11…….Theseuncoatedviruseswillbeapplieddirectlytocertainareastoconfirmsafetyonhumanbeingsandtheright……12……needed.Theexperimentswillfirstlybe……13……tothetreatmentofcertaincancersListofWordsdosagerespondingsmallpoxvirusdisablenaturalonesinjectdirectedtreatmentcold-likeillnesskillpatientsexaminedAnswersKeys:1.答案：FALSE(見第2段：Ifsuccessful,virustherapycouldeventuallyformathirdpillaralongsideradiotherapyandchemotherapyinthestandardarsenalagainstcancer,whileavoidingsomeofthedebilitatingside-effects.Virustherapy只能避免一些副作用，而不是根除。)2.答案：TRUE(見第3段，特別是最后一句：CancerResearchUKsaidyesterdaythatitwasexcitedbythepotentialofProfSeymour'spioneeringtechniques.)3.答案：NOTGIVEN(文中沒有提到virus可以抑制腫瘤細(xì)胞再生長)4.答案：TRUE(見第5段第3、4句：這里“cancer’sAchilles'heel”指“Ifyoucangetavirusintoatumour,virusesfindthemaverygoodplacetobebecausethere'snoimmunesystemtostopthemreplicating.”Achilles'heel的意思是“唯一致命弱點(diǎn)”)5.答案：FALSE(見第6段第第1句：Onlyasmallamountofthevirusneedstogettothecancer.)6.答案：TRUE(見第7段：Preliminaryresearchonmiceshowsthatthevirusesworkwellontumoursresistanttostandardcancerdrug.……,whichcouldbequitedifferenttoanythingwe'vehadbefore.")7.答案：B(見第8段第1、2句：Researchershaveknownforsometimethatvirusescankilltumourcellsandsomeaspectsoftheworkhavealreadybeenpublishedinscientificjournals.Journal意思是“日報、期刊、雜志”)8.答案：D(見第9段第1句：ProfSeymour'sinnovativesolutionistomaskthevirusfromthebody'simmunesystem,……“mask”的意思是“掩蓋、隱蔽、偽裝”，在這里和“disguise”同義。)9.答案：B(見第11段第2句：Iftheyescapefromt