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1、99Ⅱ.GrammarandVocabularySectionAToBeJoyful,ToBeYoungWhatreallyworkstomakesustainablechangesindietandlifestyle?It’sprobablynotwhatyouthink.Inthepast30yearsofconductingclinicalresearch,I(21) (learn)thatrealkeysarepleasure,joyandfreedom.Joyoflivingissustainable;fearofdyingisnot
2、.Why?Becauselifeistobeenjoyed.There’snopoint(22) (abandon)somethingyouenjoyunlessyougetsomethingbackthat’sevenbetter,andquickly.Whenpeopleeatmorehealthfully,(23) (quit)smoking,andmanagestressbetter,theyfindtheyfeelsomuchbetter,soquickly.Itreconstructsthereasonformak
3、ingthesechangesfromfearofdyingtojoyofliving. Whenyouexerciseandeatright,yourbrainreceivesmorebloodflowandoxygen,soyoubecomesmarter,havemoreenergy,andneedlesssleep.Twostudiesshowedjustwalkingforthreehoursperweekforonlythreemonthscausedsomanyneurons(神经细胞)(24) (grow)thatitactu
4、allyincreasedthesizeofpeople’sbrains!Yourfacereceivesmorebloodflow,soyourskinglowsmoreandwrinklesless.Youlookyoungerandmoreattractive.Incontrast,anunhealthydiet,lastingemotionalstressandsmokingreducebloodflowtoyourface(25) youagemorequickly.Smokingspeedsupagingbe
5、causenicotinecontributestoyourbloodvesselbecomingnarrower,(26) decreasesbloodflowtoyourfaceandmakesitwrinkleprematurely.Thisiswhysmokerslookyearsolderthantheyreallyare.Oneofthemostinterestingfindingswasthatthemothers’awarenessofstresswasmoreimportantthan(27) wasobje
6、ctivelyoccurringintheirlives.(28) (give)aquestionnaire,thewomenwereaskedtorateonathree-pointscalehowstressedtheyfelteachday.Thewomenwhorealizedtheywereunderheavystresshadsignificantlyshortenedanddamagedtelomeres(染色体端粒)comparedwith(29) whofeltmorerelaxed.Contrarily,s
7、omeofthewomenwhofeltrelaxed(30) raisingadisabledchildhadmorenormal-appearingtelomeres. Inotherwords,ifyoufeelstressed,youarestressed.SectionBDirections：Afterreadingthepassagebelow,fillineachblankwithaproperwordgiveninthebox.Eachwordcanbeusedonlyonce.Notethatthereisonemorewor
8、dthanyouneed
