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1、课时训练(十二) Units7-8(八下)(限时:30分钟)Ⅰ.[2018·温州]阅读理解 Diabetesiscausedbyagroupofmetabolicdisorders'inwhichtherearehighbloodsugarlevelsoveralongperiodoftime.Therearethreemaintypesofdiabetes: ·Type1Diabetesresultsfromthebodynothavingenoughinsulin. ·Type2Diabetesmainlyhappenstothosewhodonothaveenoughphys
2、icalexercise,eattoomuchunhealthyfoodandgettooheavy. ·GestationalDiabetesisthethirdmainform.Itappearswhenawomanishavingababy.Shewillprobablygetwellagainafterthebirthofthebaby. Diabetescanbringseriousproblems.Peoplewithdiabetes,especiallytheType1,willeasilygetthirstyandhungry,andquicklyloseweight
3、.Ifitisnottreated,itwilldeveloprapidly(weeksormonths),andcausemanylong-termcomplications.Allthecomplicationsrelatetodamagetobloodvessels.Forexample,damagetotheeyes.Itiscausedbydamagetothebloodvesselsintheeyes,andresultsingradualvisionlossandblindness.Thecomplicationswillgreatlyincreasetheriskofdi
4、abetes,bywhichabout75%ofthedeathsarecaused. AccordingtoareportfromtheWHO(WorldHealthOrganization)in2015,about415millionpeoplehavediabetesworldwide,whichmeans8.3%oftheadultsintheworldhavediabetes.Ofallthecases,85%to90%areType2Diabetes.Thatistosay,mostcasesofdiabetesresultfromtheunhealthylifestyle
5、.Diabetesdoublesaperson'sriskofearlydeath,from2012to2015,about1.5to5milliondeathseachyearresultedfromthisdisease.Theglobaleconomiccostofdiabetesin2014wasaround612billionUSD. Ahealthylifestylecanhelppreventdiabetes.Doingalotofphysicalactivitiesandhavingahealthydietwillhelphavenormalbodyweight.Hig
6、herlevelsofphysicalactivity(morethan90minutesperday)canreducetheriskofdiabetesby28%.Healthydietincludesfoodsrichinwholegrainsandfiber,foodswithgoodfatsfromnuts,vegetableoilsandfish,littlesugar,andlessredmeat.1.Diabetesis .( ) 5A.aseriousdiseaseB.adamagetobloodlevelsC.anunhealthylifestyleD.anu
7、nusualbloodlevel2.Accordingtothepassage,whatproblemcandiabetescause?( )A.Apersongetstooheavy.B.Apersondoesn'twanttoeat.C.Apersonbecomesblind.D.Awomanwillnothaveababy.3.TheWHOreport(2015)tellsusthatintheworld .( )
