吉林省松原市乾安县第七中学2020-2021学年度高一下学期期末测试英语试卷注意事项：1.答题前，先将自己的姓名、准考证号填写在试题卷和答题卡上，并将准考证号条形码粘贴在答题卡上的指定位置。2.选择题的作答：每小题选出答案后，用2B铅笔把答题卡上对应题目的答案标号涂黑，写在试题卷、草稿纸和答题卡上的非答题区域均无效。3.非选择题的作答：用签字笔直接答在答题卡上对应的答题区域内。写在试题卷、草稿纸和答题卡上的非答题区域均无效。4.考试结束后，请将本试题卷和答题卡一并上交。第Ⅰ卷（选择题）第一部分阅读（共两节，满分50分）第一节（共15小题；每小题2.5分，满分37.5分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项。AMathholidayseveryoneshouldknowInrecentyearsmathematiciansandscientistshavebeguncampaignstomarkcertaindatesincelebrationofsignificantprinciplesandhereareafewtoaddtoyourcalendarMoleDayMoleDayiscelebratedyearlyonOct.23from6:02a.mto6:02p.m..Theideaofacelebratorydaywasputforwardbyachemistryteacherin1991andhasbeenhonoredeveryyearsince.ItcelebratesAvogadro'sNumber,whichisabasicmeasuringunitinchemistry.EachMoleDayhasaspecifictheme.PiDayThegrandaddyofmathematicalandscientificholidays,however,fallseveryyearonMar.14.Thedate,3/14,representsthefirstthreenumeralsinthecalculationofpi,sothedateisknownannuallyasPiDay.PiDaywasfoundedin1988byaphysicist.TheobservationsspreadtothepointwhereonMar.12,2009,theU.S.HouseofRepresentativespassedaresolutiondeclaringMar.14asNationalPiDay.FibonacciDayNov.23marksFibonacciDay,aspecialdaythatcelebratesthemanknownasFibonacciwhodevelopedamathematicalideacalledtheFibonacciSequence,inwhicheverynumberisthesumoftheprevioustwonumbers.So,forexample.11/23marksthedaybecause1+1equals2,andthen1+2equals3（thedatebeingthe23rd）.SquareRootDaySquareRootDayisaholidaythatheartilyhonorsthosedateswherethecombinationofdayandmonthandyearformsquareroots:e.g.2/2/04and3/3/09.ThelastSquareRootDaywas4/4/16.TheholidaywascreatedbyahighschoolteacherRonGordon.SquareRootDayhasitsownwebsitewherecelebrantscangatherbeforethenextholiday.1.HowisMoleDaysimilarwithPiDay?A.Theybothhavethemes.B.Theyareyearlyholidays.C.Theyfallonthesameday.D.Theyarecreatedbyateacher.2.Whichholidayistohonoraperson?A.MoleDay.B.PiDay.C.FibonacciDay.D.SquareRootDay.3.WhichdaymightbecelebratedasSquareRootDay?A.10/23/22.B.11/23/23.C.3/12/29.D.5/5/25.【答案】1.B2.C3.D