(本試題共四部分

1、Unit4Sharing（本試題共四部分，滿分150分)第一部分：聽力(略)第二部分：語(yǔ)言知識(shí)及應(yīng)用(共兩節(jié)，滿分375分)第一節(jié)：完形填空(共15小題；每小題15分，滿分225分)閱讀下面短文，掌握其大意，然后從21—35各題所給的四個(gè)選項(xiàng)(A、B、C和D)中，選出最佳選項(xiàng)，并在答題卡上將該項(xiàng)涂黑。ScientistsaroundthewldhavebeenstudyingthewarningofwatersinthePacificO

2、ceanknownasElNino.TheappearanceofEINinoisknownto21theweatheraroundthewld.Scientistsstilldonotcompletely22it.Yettheynowfindtheycan23ittotellaboutthefutureindifferentareasofthewld.One24isthewkoftwoscientistsatColumbiaUnive

3、rsityinNewYkMarkCaneGdnEshel.AscientistofZimbabweRogerBuckl25withthem.Theyhave26thatwhenEINinoappearsZimbabwehaslittleno27ThismeanscncropsinZimbabweare28ThelastElNinowasin1991to1993.Thatwas29southeasternAfrica30aseriousl

4、ackofrain.Thescientists31abouttheirrecentwkinthepublicationNature.TheircomputerprogramcantellwhenanEINino32developuptoayearbefeit33Theysuggestthatthiscouldprovideadirectiveearlywarningsystem34southernAfricacouldpreventma

5、nypeoplefrom3521.A.effectB.affectC.spoilD.heat22.A.understB.knowC.realizeD.see23.A.putB.takeC.makeD.use24.A.exampleB.reasonC.causeD.result25.A.studiedB.wkedC.foundD.realized27.A.rainB.snowC.stmD.wind28.A.richB.weakC.stro

6、ngD.po29.A.asB.whenC.whileD.where30.A.receivedB.tookC.sufferedD.made31.A.wroteB.spokeC.toldD.talked32.A.canB.willC.mayD.shall33.A.canB.doesC.willD.may34.A.toB.withC.fD.of35.A.leavingB.spreadingC.expingD.starving第二節(jié)：語(yǔ)法填空(

7、共10小題；每小題15分，滿分15分)閱讀下面的短文，根據(jù)上下文填人適當(dāng)?shù)脑~語(yǔ)，或使用括號(hào)中的詞語(yǔ)的適當(dāng)形式填空，并將答案填寫在答題卷標(biāo)號(hào)為36—45相應(yīng)的位置?！癉ontbealwaysparticular36(介詞)yourpresentwkincome.“mymothersaidtomesoftly“asamatterof37(名詞)youhavedonewellmadegreatachievementinthe38(entert

8、ain)field.“Myfaceturnedredonhearing39(連接詞)mymothersaid.Sheisright.Manyotheractsare40(形容詞)offthanmeatpresentbuttheyarelikelytobecontentwiththeirlifebehappymostof41(冠詞)time.IfeelupsetwithmysituationjustbecauseIseldomcommun

9、icatewithothersitseemsasifIam42(動(dòng)詞)offtheoutsidewld.Ishouldhaveknownwhentoholdfastwhentoletgowhichcanhelpmeavoid43(feel)greatpressureupset.Imustknowhowtocarefotherstrynotto44A.theauthisasuccessinpersonallifeB.theauthdidn

10、ttryherbesttowkwellC.theauthspentallhertimecaringfherchildrenD.theauthlikestravelingverymuchBOnJune51981theCentersfDiseaseControlinAtlantaU.S.announcedthepresenceofarareinfectiousdiseaseinfiveAmericanhomosexuals(同性戀).Soo

11、ndoctswerefindingsimilarcasesalloverthecountrythewld.TheAIDSepidemic(流行病)hadofficiallybegun.By1983itwasclearthatAIDShadspreadaroundthewld.MethantwentyyearslaterAIDShaslefttwentysixmilliondeadanotherftymillioninfected.AID

12、Shasbecomethewstmedicaldisastereverexperiencedbymankind.Hundredsofyoungpeoplebetweentheagesof2045diedeachweekduringtheearlyyearsoftheU.S.AIDS.Methan600000casesofAIDShavebeenreptedsince1981intheUnitedStatesitisestimatedth

13、attheremaybeasmanyas900000AmericansinfectedwithHIV.ThoughtherateofHIVinfectionscontinuestoincreaseintheUnitedStatesthenumberofAIDScaseshasfallensharplysince1996whenantiretroviraldrugscameontothemarket.UnftunatelytheAIDSe

14、pidemiccontinuestodayinAfricamuchofAsiawhereantiretroviraltreatmentisnotavailablehealthcareisfarfromenough.AIDSisthefourthleadingcauseofdeathwldwidetheNo.1causeofdeathduetoinfectiousdisease.HIVthevirusthatcausesAIDSwasfi

15、rstseparatedin1983byateamatthePasteurInstituteinParis.ThatdiscoverymadeitpossibletodevelopatestfAIDStracebacktovictimswhomayhavediedbefedoctswereawareofthedisease.HoweverscientistsstilldontknowexactlyhowwhereAIDSstarted.

16、FindingthesourceofAIDScouldbeimptantindevelopingavaccine(疫苗)beimptantinmappingthefuturecourseoftheepidemic.51.ItcanbeinferredfromthepassagethatA.antiretroviraldrugswillbeobtainedeasilyalloverthewldB.thebestwaytostopAIDSi

17、stodevelopavaccineB.scientistswillsoonfindawaytocureAIDSD.therewillbefewerAIDScasesinthewldinthefuture52.WhichareasarethemostwryingplaceswhereAIDSspreadsquicklyA.Africa.B.Asia.C.TheUnitedStates.D.France.53.ThenumberofAID

18、ScaseshasgreatlydecreasedintheUnitedStatesduetothefactA.ateamatthePasteurInstituteinParissucceededinseparatingHIVB.someeffectivemedicinehasbeeninventedB.scientistsunderstAIDSbetterbetter.D.TherateofHIVinfectionscontinuet

19、oriseintheUnitedStates54.WhatstheimptanceofthediscoveryofthesourceofAIDSA.ItcanbeusedtodevelopatestfAIDS.B.ItcanstopHIVfmingAIDS.B.ItcanreducetherateofdeathcausedbyAIDS.D.ItcanhelpdevelopadrugtopreventAIDS.55.Whendidthen