吉林省松原市乾安县第七中学2020-2021学年高一英语下学期期末测试试题注意事项：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.PiDayThegranddaddyofmathematicalandscientificholidays,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.BFuCong,aChin