Wecanconcludefromthepassagethat________.

Passage2

Questions6to10arebasedonthefollowingpassage:

Thefoodweeatseemstohaveprofoundeffectsonourhealth.Althoughsciencehasmadeenormousstepsinmakingfoodmorefittoeat,ithas,atthesametime,mademanyfoodsunfittoeat.Someresearchhasshowntat40percentofcancerisrelatedtothedietaswell,especiallycancerofthecolon.Differentculturesatemorepronetogetcertainillnessesbecauseofthefoodthatischaracteristicinthesecultures.Thatfoodisrelatedtoillnessisnotanewdiscovery.In1945,governmentresearchersrealizedthatnitratesandnitrites,commonlyusedtopreservecolorinmeats,andotherfoodadditives,causedcancer.Yetthesecarcinogenicadditivesremaininourfood,anditbecomesmoredifficultallthetimetoknowwhichthingsonthepackaginglabelsofprocessedfoodarehelpfulorharmful.Theadditivesthatweeatarenotallsodirect.Farmersoftengivepenicillintobeefandpoultry,andbecauseofthis,penicillinhasbeenfoundinthemilkoftreatedcows.Sometimessimilardrugsareadministeredtoanimalsnotformedicinalpurposes,butforfinancialreasons.Thefarmersaresimplytryingtofattentheanimalsinordertoobtainahigherpriceonthemarket.AlthoughtheFoodandDrugAdministration(FDA)hastriedrepeatedlytocontroltheseprocedures,thepracticescontinue.

6.Howhassciencedoneadisservicetomankind?

A.Becauseofscience,mostofthefoodsweeattodayarecontaminated.

B.Ithascausedalackofinformationconcerningthevalueoffood.

C.Asaresultofscientificintervention,somepotentiallyharmfulsubstanceshasbeenaddedtoourfood.

D.Thescientistshavepreservedthecolorofmeats,butnotofvegetables.

7.Whatarenitratesusedfor?

A.Theypreservesflavorinpackagedfoods.

B.Theypreservethecolorofmeats.

C.Theyaretheobjectsofresearch.

D.Theycausetheanimalstobecomefatter.

8.TheFDAhastriedrepeatedlytocontrol.

A.theattempttofattentheanimals

B.theattempttocuresickanimals

C.theusingofdrugstoanimals

D.theusingofadditivestopreservethedoloroffood

9.Theword“carcinogenic”meansmostnearlythesameas.

A.trouble-makingB.color-retaining

C.money-savingD.cancer-causing

10.WhichofthefollowingstatementsisNOTtrue?

A.Drugsarealwaysgiventoanimalsformedicalreasons.

B.Someoftheadditivesinourfoodareaddedtothefooditselfandsomearegiventothelivinganimals.

C.Researchershaveknownaboutthepotentialhazardsofthefoodadditivesforoverthirty-fiveyears.

D.Foodmaycausefortypercentofcancerintheworld.

Ifthedrugproveseffectiveinhumantrials,itcouldenhancetheeffectivenessofexistingAIDSdrugsin________.

Recentresearchhasclaimedthatanexcessofpositiveionsintheaircanhaveanilleffectonpeople’sphysicalorpsychologicalhealth.Whatarepositiveions?Well,theairisfullofions,electricallychargedparticles,andgenerallythereisaroughbalancebetweenthepositiveandthenegativecharged.Butsometimesthisbalancebecomesdisturbedandalargerproportionofpositiveionsarefound.Thishappensnaturallybeforethunderstorm,earthquakeswhenwindssuchastheMistral,HamsinorSharavareblowingincertaincountries.Oritcanbecausedbyabuild-upofstaticelectricityindoorsfromcarpetsorclothingmadeofman-madefibres,orfromTVsets,duplicatorsorcomputerdisplayscreens.

Whenalargenumberofpositiveionsarepresentintheairmanypeopleexperienceunpleasanteffectssuchasheadaches,fatigue,irritability,andsomesensitivepeoplesuffernauseaorevenmentaldisturbance.Animalsarealsoaffected,particularlybeforeearthquakes,snakeshavebeenobservedtocomeoutofhibernation,ratstofleefromtheirburrows,dogshowlandcatsjumpaboutunaccountably.ThishasledtheUSGeographicalSurveytofundanetworkofvolunteerstowatchanimalsinanefforttoforeseesuchdisastersbeforetheyhitvulnerableareassuchasCalifornia.

Conversely,whenlargenumbersofnegativeionsarepresent,thenpeoplehaveafeelingofwell-being.Naturalconditionsthatproducetheselargeamountsarenearthesea,closetowaterfallsorfountains,orinanyplacewherewaterissprayed,orformsaspray.Thisprobablyaccountsforthebeneficialeffectofaholidaybythesea,orinthemountainswithtumblingstreamsorwaterfalls.

Toincreasethesupplyofnegativeionsindoors,somescientistsrecommendtheuseofionisers:smallportablemachines,whichgeneratenegativeions.Theyclaimthationisersnotonlycleanandrefreshtheairbutalsoimprovethehealthofpeoplesensitivetoexcesspositiveions.Ofcourse,therearethedetractors,otherscientists,whodismisssuchclaimsandareskepticalaboutnegative/positiveionresearch.Thereforepeoplecanonlymakeuptheirownmindsbyobservingtheeffectsonthemselves,oronothers,ofanegativerichorpoorenvironment.Afterallitisdebatablewhetherdependingonseismicreadingstoanticipateearthquakesismoreeffectivethanwatchingthecat.

1.Whateffectdoesexceedingpositiveionizationhaveonsomepeople?

A.Theythinktheyareinsane.

B.Theyfeelratherbad-temperedandshort-fussed.

C.Theybecomeviolentlysick.

D.Theyaretootiredtodoanything.

2.Inaccordancewiththepassage,staticelectricitycanbecausedby___.

A.usinghome-madeelectricalgoods.

B.wearingclothesmadeofnaturalmaterials.

C.walkingonartificialfloorcoverings.

D.copyingTVprogramsonacomputer.

3.Ahighnegativeioncountislikelytobefound___.

A.nearapoundwithawaterpump.

B.closetoaslow-flowingriver.

C.highinsomebarrenmountains.

D.byarotatingwatersprinkler.

4.Whatkindofmachinecangeneratenegativeionsindoors?

A.Ionisers.

B.Air-conditioners.

C.Exhaust-fans

D.Vacuumpumps.

5.Somescientistsbelievethat___.

A.watchinganimalstoanticipateearthquakesismoreeffectivethandependingonseismography.

B.theunusualbehaviorofanimalscannotbetrusted.

C.neitherwatchingnorusingseismographsisreliable.

D.earthquake

PartIIVocabularyandStructure

Directions:Inthisparttherearefortyincompletesentences.Eachsentenceisfollowedbyfourchoices.ChoosetheonethatbestcompletesthesentenceandthenmarkyouranswerontheAnswerSheet.

21.Theteacherthestudentsonatourthroughtheartmuseum.

A.madeB.indicatedC.forcedD.took

22.Tom’sparentsdiedwhenhewasachild,sohewasbyhisrelatives.

A.grownupB.broughtupC.raisedD.fedup

23.Hereismycard.Let’skeepin.

A.touchB.relationC.connectionD.friendship

24.Sofarthereisnoproofpeoplefromotherplanetsdoexist.

A.whichB.howC.whatD.that

25.Thenewspapersreportedyesterdayseveralontheboundariesofthesetwocountries.

A.incidentsB.happeningsC.eventsD.accidents

26.We’veworkedouttheplanandnowwemustputitinto.

A.factB.realityC.practiceD.deed

27.Hedidn’tandsohefailedtheexamination.

A.workenoughhardB.hardworkenoughC.hardenoughworkD.workhardenough

28.NotuntilMr.SmithcametoChinawhatkindofcountrysheis.

A.heknewB.hedidn’tknowC.didheknowD.hecouldn’tknow

29.Scientistssayitmaybetenyearsthismedicinewasputtouse.

A.sinceB.beforeC.afterD.when

30.Insomecountries,iscalled“equality”doesnotreallymeanequalrightsforallpeople.

A.thatB.whatC.whichD.how

31.Wedidn’tknowhistelephonenumber,otherwisewehim.

A.wouldtelephoneB.wouldhavetelephone

C.hadtelephonedD.musthavetelephoned

32.We’vemissedthelastbus,I’mafraidwehavenobuttotakeataxi.

A.wayB.possibilityC.choiceD.selection

33.Luckily,mostsheepthefloodlastmonth.

A.enduredB.survivedC.livedD.passed

34.Myparentsalwaysletmehavemyownofliving.

A.wayB.methodC.mannerD.fashion

35.Likeotherlanguageskills,readingrequirespractice.

A.themostofB.muchoftheC.mostoftheD.moreofthe

36.Itisonlythroughpracticeonewillbeabletoswimskillfully.

A.whatB.whoC.thatD.which

37.Thebrainiscapableofignoringpainmessageoftoconcentrateonotheractivities.

A.itallowedB.isitallowedC.allowedD.allowedit

38.Don’tworry,Ihavealreadythemthedecision.

A.informed;withB.informed;ofC.informed;forD.informed;that

39.Thechildwassorryhismotherwhenhearrivedatthestation.

A.tomissB.havingmissedC.missingD.tohavemissed

40.Iwonderwhyhetodiscusstheproblematthemeeting.

A.declinedB.rejectedC.refusedD.delayed

41.Youcanhangupwhatyoulikeonthesewalls.

A.bareB.emptyC.blankD.vacant

42.Accordingtoa,themajoritywouldratherhavenewspaperswithoutagovernmentthanagovernmentwithoutnewspapers.

A.electionB.campaignC.pollD.vote

43.Thepopulationofthevillagehasdecreased150to500.

A.inB.atC.byD.with

44.ItseemsthatthereisthatIcan’tdo.

A.nothingB.anythingC.everythingD.none

45.Theyareoftencaringmoreaboutanimalsthanhumanbeings.

A.accusedifB.accusedwithC.chargedofD.chargedfor

46.agoodbeginningismade,thewordishalfdone.

A.AssoonasB.WhileC.AsD.Once

47.Georgecouldnothisfoolishmistake.

A.accountinB.countonC.countforD.accountfor

48.Wecameintothisfieldlate,sowemustworkhardtothelosttime.

A.makeupforB.makeoutC.keepupwithD.putupwith

49.Thenewlawwillcameintoonthedayitispassed.

A.effectB.useC.serviceD.existence

50.Wecanseparatethemixtureintothepurechemicalcompoundsitiscomposed.

A.inwhichB.ofwhatC.ofwhichD.fromwhich

51.Mrs.Lincolnhasthatsheisunabletogetajob.

A.suchsmalleducationB.solittleeducation

C.asuchlittleeducationD.asosmalleducation

52.Shecan’tpreventherlittleboyshootingbirds.

A.from;toB.on;atC.with;upD.from;at

53.Manycountriesareincreasingtheiruseofnaturalgas,windandotherformsof.

A.energyB.sourceC.powerD.material

54.Adarkenedskyinthedaytimeisusuallyandindicationthatastormis.

A.possiblecomingB.abouttotakeplace

C.closebyD.expectedtobesevere

55.Weallknowthatspeaklouderthanwords.

A.movementsB.performanceC.operationsD.actions

56.,hecouldnotcoverthewholedistanceinfifteenminutes.

A.FastashecanB.Ashecanranfast

C.IfhecanranfastD.Sinceheranfast

57.Agriculturalproductioninthatcountryhasincreasedinrecentyears.

A.vastlyB.strikinglyC.considerablyD.extremely

58.Peterhasplannedtosomemoneyeverymonthsothathecanbuyausedcarnextyear.

A.setasideB.setupC.setinD.setalong

59.AlthoughIspoketohimmanytimes,henevertookanyofwhatIsaid.

A.attentionB.noticeC.warningD.observation

60.Theyovercameallthedifficultiesandfulfilledtheplanthreemonthsaheadoftime,issomethingwehadnotexpected.

A.thatB.whatC.itD.which