大学英语b模拟六及参考答案

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1、大学英语B模拟六PartI:ReadingComprehension(40points)Directions:Therearefourpassagesinthispart.Eachpassageisfollowedbyfivequestions.ForeachquestiontherearefourchoicesmarkedA,B,CandD.YoushoulddecideonthebestchoiceandmarkthecorrespondingletterontheAnswerSheetwithasinglelinethroughthece

2、nter.Passage1Itisreportedthat6.5millionAmericansjogforexercise.Thepopularityofjogginghasbeenheightenedbymedicalclaimsofthebenefitsderivedfromregularparticipationinthisactivity.Regularjoggingiscreditedwithpromotinga“trainingeffect”whichconditionsthehearttodomoreworkwithlessef

3、fort;increasingtheefficiencyoftherespiratory(呼吸)systembystrengtheningthemusclesthatassistbreathing;increasingbloodvolumeinthebody,therebyincreasingtheoxygen-carryingcapacityofthecirculatorysystem;promotingbloodvesselflexibility;aidingthedigestivesystem;andhelpingtomaintainpr

4、operbodyweightthroughthehighcalorieexpenditure.Itisreasonabletoassumethatthenumberofadultjoggerswillincreaseifthisactivityisproperlytaughtandencouragedthroughschoolphysicaleducationprograms.Childrenshouldbetaughthowtojogaswellastounderstandthebenefits.Itisrecommendedthatmoti

5、vationalprogramssuchastheNationalVarsityClubSportAwardbeutilizedtoprovideaddedincentive(刺激)forschooljoggingprograms.Inadditiontolearningthephysiologicaleffectsoftrainingnotedabove,studentsshouldbegiventhefollowinginformationasguidelinesfortheirpersonaljoggingprograms.Whenjog

6、ging,runinanuprightposition,avoidingthetendencytolean.Don’tlookatyourfeet.Holdarmsslightlyawayfrombody,withelbowsbentsothatforearmsareapproximatelyparalleltotheground.Occasionallyshakingandrelaxingthearmsandshoulderswillhelpreducethetightnessthatsometimesdevelopswhilejogging

7、.Periodicallytakingseveraldeepbreathsandblowingthemoutcompletelyalsowillhelpyoutorelax.Itisbesttolandontheheelofthefootandrockforwardsothatyoudriveofftheballofthefootforyournextstep.Ifthisprovesdifficult,tryaflat-footedstyle.Joggingonlyontheballsofthefeet,asinsprinting,willp

8、roduceseverelegsoreness.Keepstepsshort,lettingfootstrikethegroundbeneaththe