2019年秋七年级英语上册 Unit 6 Food and lifestyle单元话题阅读素材 (新版)牛津版

2019年秋七年级英语上册 Unit 6 Food and lifestyle单元话题阅读素材 (新版)牛津版

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时间:2019-10-22

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1、Unit6FoodandlifestyleFoodandHealth食品与健康TofuisasgoodasmedicineforlowingcholesterolResearchpublishedinthefourthweekofJuly2003foundthatthegroupofpeople,whoatehigh-fiber,high-soyfoodhadloweredLDL(thebadcholesterol)by28.6%,comparingthecontractgroup.Theeffectoftakenhigh-fiber,

2、high-soyisalmosthavethesameeffectastakethestatinMevacor,whichis30.9%.AndpeoplewhoonlytakelowfatfoodonlyhadloweredLDLby8%comparingwithnormalgroup.FishandHealthSeafoodtakeaprimeroleinchinesefeast.Chineseisgoodatcookingfish,canmakeitverydeliciousandcontainlesscookingoil.For

3、fishtomaintainfluidityincoldwatersuchasAlaska,theirfatshavetoremainliquid.Fishoilrichinomega-3fattyacids.Thetwoomega-3'sinfishareeicosapentaenoicacid(EPA)anddocosahexaenoicacids(DHA).EPAandDHAareessentialforhumanhealth,DHAit'scriticaltodevelopmentofthebrainandretinaforin

4、fant,thehumanbreastmilkcontainit.EPAandDHAareverybenefittheheartandbloodvessels.Inonestudypeopleeatfourtimesofatleastthreeouncesalmonamonthreduced50percentriskofcardiacarrest.StudyshowEPAandDHAcaninhibitthesynthesisofsubstancesthatresultinflammationandbloodclots,stabiliz

5、etheelectricalactivityoftheheart.Lowerbloodpressure,triglyceridelevelsandimprovethefunctioningofarterylinings.Althoughhumancanconvertalpha-linolenicacid(ALA)toEPAandDHA,theconversionrateissolow,youneedeatalotoffoodcontainALA,that'smakeitimpractical.Eatingfishisagoodwayto

6、reachhealth.3Astheworldgetmorepollution,thefishalsomaybecomedangeroustoyourhealth.mercuryisacommontoxin,becautious,especiallytopregnantwomen,tosomedeepseafishwhicheatotherfishandresultaccumulatemoremercuryintheirbody.Suchastilefish,swordfish,shark,kingmackerel.Alsoavoidf

7、ishcomesfromsomelocationorareawhichareheavenlypolluted.GreenTeaGreenTeaisfavorityandtraditionaldrinkofChineseforthousandyears.Recentstudieshaveshownthatepigallocatechingallate(EGCG)anantioxidantfoundingreentea,isatleast100moretimesmoreeffectivethanvitaminCand25timesmoree

8、ffectivethanvitaminEatprotectingcellsandDNAfromdamagebelievedtobelinkedtocancer,heartdiseaseandotherser

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