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
I’mworriedabouttheappearanceofthefloor.Ineedto_____it.
Icertainlydidn’tintendto_____yourplans.
Underno_____willIgothereagain.
