整理2014年中考英语阅读理解专项练习5030

阅读理解专项练习50-30CMSG(monosodiumglutamate)isafoodadditive(食品添加剂),whichhasbeenwidelyusedbymanyfoodfactoriesallovertheworldsinceitappearedfirstinJapanin1909.MSGisasubstancethatisaddedtosomefoodtoimproveitsoriginal(原先的)tasteandcolour.Itisusedinfoodsaroundtheworldsuchascakes,bread,frozenmeats,fishandvegetables.Inthebeginning,peoplethoughtMSGwassafejustlikesaltandsugar.However,in1968somepeoplereportedtheyseemedtohavebadreactions(反应)toMSGafterhavinghadamealatarestaurant.Theyincludedheadachesandquickheartbeat(心跳).ItwasalsoreportedthatMSGexcitedaperson’sbrainandcausedhisdeathinJapan.ScientiststhinkthatMSGmayleadtomanyneurologicaldisorders(神经紊乱).Inmicestudiesdonebyauniversity,theevidenceshowedthemicedidn’twanttoeatthefoodincludingMSG.Todaymanyfoodcompanies“hide”MSGonfoodlabels(标签)byusingdifferentnames.Ifyousee“naturalflavorings”,“hydrolyzedprotein”and“spices”inafoodlabel,youareprobablyseeingahiddenwayto“report”MSGinafoodlabel.Everytimewehaveamealinarestaurant,wealwaysfeelthefoodverydelicioustotaste,butsometimesitisdangerousforourhealthbecausesomepoisonousfoodadditiveshavebeenaddedtothefood.Toprotectpeople’shealth,ourgovernments,fromcentraltolocal,aretakingactionstostopfactoriesproducingpoisonousfoodadditives.41.MonosodiumGlutamateis_______A.afoodB.anadditiveC.afactoryD.acountry42.MSGisoftenusedin______.A.frozenmeatsB.cupsC.clothesD.bookcovers43.Theexamplesinthesecondparagraphtellus________.A.thefoodincludingMSGisdeliciousB.peopleliketoeatinarestaurantC.micelikeeatingthefoodincludingMSGisnotsafesometimesyousee“naturalflavorings”,“hydrolyzedprotein”and“spices”inafoodlabel,youwillknow_____________.A.youmusteatthefoodinahiddenwayB.thefoodlabelmustbehiddenisprobablyaddedtothefoodD.youmustreportthefoodtoyourparentsunderlinedword“substance”inthearticlemeans__________.A.colourB.materialC.tasteD.food【主旨大意】本文介绍了味精的优点和害处。41.B从短文第一句“MSG(monosodiumglutamate)isafoodadditive”得出答案。42.A从这句话“Itisusedinfoodsaroundtheworldsuchascakes,bread,frozenmeats,fishandvegetables.”得出答案。43.D从此句“ScientiststhinkthatMSGmayleadtomanyneurologicaldisorders(神经紊乱).”得出答案。44.C从这一句“Ifyousee“naturalflavorings”,“hydrolyzedprotein”and“spices”inafoodlabel,youareprobablyseeingahiddenwayto“report”MSGinafoodlabel.”得出答案。45.B根据句意，得知意为“物质”。AIfyouarecyclinginforeigncountries,youwillneedtoknowwhatthesetrafficsignsandsignalsmean.1Asignlikethisonemeansthatthereisabikelane(车道).Ifthereissuchasign，youarerequiredtousethebikelane.Ifthereisnotsuchasign,youshouldridewithtrafficasfartotherightsideoftheroadaspossible.2Thissignalmeansyoucancrossthestreetalongwithpedestrians(行人).Ithasagreenpictureofaoersonwalkinginsteadofusingtheword“walk”.3Thissignalisthe“don’twalk”sign.Itisapictureofaredhand,meaningyoushouldstop.Youshouldwaittocrossthestreetuntilthegreenpictureofthepersonwalkingisshowing.4Cardriversandbikersmustcometoacompletestopat“STOP”signs.5A“YIELD”signmeanstoslowdownandbereadytostop.Iftherearepedestriansorvehiclesinornearthecrossroad,youmuststop.Ifthereisnotrafficinornearthecrossroadanditissafe,youmaygothrough.6Thissignalmeansyouarecomingtoazebracrossing.Cardriversandbikersmuststoptoallowpeopleinthezebracrossingtocrossthestreet.7Whenpeopleareworkingontheroads,partsoftheroadareoftenduguporrough(不平整的).Becarefulwhenyonarecycling.Roughroadscouldmakeyoufalloffyourbike.Ifyoumustmoveintotheroadtogoaroundaworkarea，youshouldstopandlookcarefullytobesurethereisnotrafficcoming.8Adetourisawayofgettingaroundaroadwaythatisclosed.Roadsareusuallyclosedbecauseofroadworkordangerousconditions.Ifyoumusttakeadetour,becarefulabouttheroadsyouaren’tusedto.21．Whatarecyclistsrequiredtodowhentheyseethesign?rideagainsttraffic.rideontheleftsideoftheroad.rideonthebikelane.rideontherightsideoftheroad22．Whichofthefollowingsignshasthesamemeaningasthesign?23．Whatshouldcyclistsdowhentheyseethesign?shouldbecarefulwhentheycycleontheroughroad.sho