英語四級閱讀理解題型練習(xí)附答案

1、英語四級閱讀理解題型練習(xí)附答案Newdays,astandardformeasuringpowerhaschanged.Thesechangesforetellanewstandardformeasuringpower.Nolongerwillanation'spoliticalinfluencebebasedsolelyonthestrengthofitsmilitaryforces.Ofcourse,militaryeffectivenesswillremainaprimaryprimarymeasureofpower.Butpoliticalinfluenceisalsoclos

2、elytiedtoindustrialcompetitiveness.It'softensaidthatwithoutitsmilitarytheSovietUnionwouldreallybeathird-worldnation.Thenewstandardofopwerandinfluencethatisevolvingnowplacesmoreemphasisontheabilityofacountrytocompeteeffectivelyintheeconomicmarketsoftheworld.Americamustrecognizethisnewcourseofeven

3、ts.Oursuccessinshapingworldeventsoverthepast40yearshasbeenthedirectresultofourabilitytoadapttechnologyandtotakeadvantageofthecapabilitiesofourpeopleforthepurposeofmaintainingpeace.Ourindustrialprowessovermostofthisperiodwasunchallenged.Itisironicthatitisjustthisprowessthathasenabledothercountriestop

4、rosperandinturntothreatenourindustrialleadership.ThecompetitivenessofAmerica'sindustrialbaseisanissuebiggerthantheDepartmentofDefenseandisgoingtorequiretheeffortsofthemajorinstitutionalforcesinoursociety-government,industrsandeducation.ThatisnottosaythattheDefenseDepartmentwillnotbeastrongforcei

5、ntheprocessbecausewewill.Butwesimplycannotbe,norshouldwebe,lookeduponbyothersasthesaviorofAmericanindustry.1. Nowanation'spoliticalinfluencedependson.a. thestrengthofitsmilitaryforcesb. itsabilitytocompeteinindustryc. economicmarketsd. bothaandb2. TheSovietUnionwasnotlistedasathird-worldnationju

6、stbecauseofa. itspowerfulmilitaryforcesb. itsvastlandc. itsindustrialcompetitivenessd. itscontributionstoworldpeace3. TheauthorindicatesthatisthreateningAmericanpoliticalpower.a. othercountriesb. thedecliningU.S.industrialbasec. anewstandardformeasuringpowerd. lessadvancedtechnology4. Americasucceed

7、edinshapingworldeventsoverpast40yearsprobablybecauseof.a. itsabilitytoadapttechnologyb. itsabilitytotakeadvantageofthecapabilitiesofitspeoplec. itsabilitytocompeteintheworldmarketsd. bothaandb5. Thepurposeofwritingthisarticleis.a. todrawthereaders*attentiontoanewstandardformeasuringpowerb. todemonst

8、rateAmericanpoliticalinfluenceintheworldc. toemphasizethateffortsmustbemadetostrengthenthedecliningU.S.industrialbased. toshowAmericanindustrialprowess答案：dabdcTreesshouldonlybeprunedwhenthereisagoodandclearreasonfordoingsoand,fortunately,thenumberofsuchreasonsissmall.Pruninginvolvesthecuttingawayofo

9、bergrownandunwantedbranches,andtheinexperiencedgardenercanbeencouragedbythethoughtthatmoredamageresultsfromdoingitunnecessarilythanfromleavingthetreetogrowinitsownway.First,pruningmaybedonetomakesurethattreeshaveadesiredshapeorsize.Theobjectmaybetogetatreeoftherightheight,andatthesametimetohelpthegr

10、owthofsmallsidebrancheswhichwillthickenitsappearanceorgiveitaspecialshape.Secondly,pruningmaybedonetomakethetreehealthier.Youmaycutdiseaedordeadwood,orbranchesthatarerubbingagainsteachotherandthuscausewounds.Thehealthofatreemaybeencouragedbyremovingbranchesthatareblockingupthecentreandsopreventingth

11、efreemovementofair.Oneresultofpruningisthatanopenwoundisleftonthetreeandthisprovidesaneasyentryfordisease,butitisawoundthatwillheal.Oftenthereisaracebetweenthehealingandthedeseaseastowhetherthetreewillliveordie,sothatthereisaperiodwhenthetreeisatrisk.Itshouldbetheaimofeverygardenertoreducewhichhasbe

12、enprunedsmoothandclean,forhealingwillbesloweddownbyroughness.Youshouldallowthecutsurfacetodryforafewhursandthenpaintitwithoneofthesubstancesavailablefromgardenshopsproducedespeciallyforthispurpose.Pruningisusuallywithoutinterferencefromtheleavesandalsoitisveryunlikelythatthecutsyumakewillbleed.Ifthi

13、sdoeshappen,itis,ofcourse,impossibletopaintthemproperly.1. Pruningshouldbedoneto.a. makethetreegrowtallerb. improvetheshapeofthetreec. getridofthesmallbranchesd. makethesmallbranchesthicker2. Treesbecomeunhealthyifthegardener.a. allowstoomanybranchestogrowinthemiddleb. doesnotprotectthemfromwindc. f

14、orcesthemtogrowtooquicklyd. damagessomeofthesmallsidebranches3. Whyisaspecialsubstancepaintedonthetree?a. Tomakeawoundsmoothb. Topreventdiseaseenteringawoundc.Tocoveraroughsurfaced.Tohelpawoundtodry4. Agoodgardenerprunesatree.a.atintervalsthroughouttheyearb.asquicklyaspossiblec. occasionallywhennecessaryd. regulareve