山西省吕梁市中阳县2016中考英语阅读理解练习（3）【中考先睹为快】PassageA（来自2016中考模拟训练）阅读下列短文，从每小题所给的A、B、C、D四个选项中选出一个最佳选项。Smartphones,poorsightLookaroundandyou’llseepeoplebusyontheirsmartphones.Smartphonesdomakeourliveseasier.Buthaveyoueverthoughtaboutwhattheymeantoyoureyes?Accordingtoastudy,halfofBritishpeopleownsmartphonesandtheyspendanaverage(平均)oftwohoursadayusingthem.Therehasbeena35%increaseinthenumberofpeopleintheUKwhosufferfromshortsightedness（近视）sincesmartphoneswereintroducedtherein1997.Staring（盯）atsmartphonesforlongtimegivesyoudryeyes.Whenlookingatsomethinginthedistance,youreyesautomaticallyblink（自动眨眼）acertainnumberoftimes.However,whenyoulookatthingsclosertoyourface,theblinkingslowsdown.Thisreducestheamountoftearsandcausesdiscomfortinyoureyes.Anotherbadhabitisusingsmartphonesindarkroomsbeforegoingtosleep.Ifyoulookatabrightscreenwhileyourpupils（瞳孔）becomelarger,toomuchlightentersyoureyes.Thiscandoharmtotheeyesandcauseadiseasecalledglaucoma（青光眼）.Whileyou’reprobablynotgoingtostopusingtoyoursmartphone,thereareafewthingsyoucandotoprotectyoureyes.Holdyourphoneatleast30centimetresawayfromyoureyeswhenusingit.Takeabreakeveryhourandtrythefollowing:lookatsomethingatleastfivemetersfromyouandthenfocusonthetipofyournose.Repeatthisseveraltimes.Itshouldreducethediscomfortinyoureyes.46.FromParagraph2,welearnthat_______.A.mostoftheBritishpeoplebegantousesmartphones19yearsagoB.eachoftheBritishpeoplespendstwohoursadayonsmartphonesC.allBritishpeoplehavesufferedfromshortsightednesssince1997D.thenumberofBritishpeoplewhoownsmartphonesincreasesby35%47.AccordingtoParagraph3,usingsmartphonesimproperlymaycause_______.A.toomanyblinksB.moretearsintheeyesC.largerpupilsD.dryeyesandglaucoma48.Whichofthefollowingissuggestedbythewriter?A.Holdthephoneatleasthalfameterawayfromtheeyes.B.Don’tusethephoneforoveranhourwithoutabreak.C.Turnoffyourphoneforacoupleofhourseveryday.D.Lookatsomethinggreenfarawayforseveralminutes.49.TheChinesemeaningoftheunderlinedword“smartphone”is___________.A.小灵通B.智能手机C.平板电脑D.电