重难题型二完形填空

1、第第 页（限时:7分钟 分值:10分 实际用时:_ 得分:_）There are PUrPle clothes, PUrPIe handbags, PUrPle bicycles, PUrPle furniture, even PUrPle computers! So PUrPIe is One of the most 1 colors today. BUt in the past, PUrPIe WaS a Very expensive and UnUsual color. Let S take a look 2 thofrbe color PUrPle.Some SCie ntists b

2、elieve that the first PIa nts to appear On Earth over 500 milli On years ago _3 looked PUrPle, not green. PlantS today are green becaUse 4 USe green chlorophyll（叶绿素）to PrOdUCe energy.5 these early plants PrObabIy USed SOmething called retinal, WhiCh is a darkPUrPIe color.DUring the time of the Roman

3、 EmPire（37 BC476 AD）, it WaS Very to make PUrPIedye（染料）.The dye Came from Sea Snails（海螺）.BUt 10,000 dead Sea Snails 7 VoU jUSt One gram（克）of PUrPIe dye.as well as a Very bad smell! ThiS 8 PUrPIe dye WaS called Tyrian PUrPle, and it WaS the Preferred 9 of emperors.In 16th -CentUry England, PUrPIe WaS

4、 10 for the king S family members. QUeen EIiZabeth I S clothes Were PUrPle, bUt Ordinary people Were not alloWed to 11 the color.In 1856, William Perkin, an 18-year-oId 12 StUdent, noticed SOmething Strange While doing an experiment（实验）.The ChemiCals（化学药品）he USed to clean his inStrUments 13 With the

5、 ChemiCaIS he USed in his experime nt and PrOdUCed a bright PUrPIe color. ThiS 14 led Perkin to Start a compa ny USing this ChemiCaI mixtUre to make PUrPIe dye. The dye WaS mUCh 15 tha n Sea-S nail dye. ThankS to Perkin, now anyone Can afford to Wear PUrPIe clothes.1.A.peacefUlB.popUlarC.excit ingD.

6、serioUS2.A.historyB.styleC.researchD.prodUCt3.A. gradUallyB.especiallyC.exactlyD.probably4.A.othersB.theyC.WeD.some5.A.A ndB.SoC.BUtD.U ntil6.A.da ngeroUSB.com monC.diffiCUltD.stra nge7.A.gotB.passedC.WastedD.cost8.A.basicB.harmfUlC.specialD.perfect9.A.coIorB.smellC.pla ntD.a ni mal10.A.eve nB.n eve

7、rC.seldomD.o nly11.A.wearB.sellC.changeD.make12.A.geography B.scienceC.artD.math13.A.comparedB.mixedC.collectedD.kept14.A.surveyB.suggestion C.discoveryD.exam15.A.healthierB.thickerC.cheaperD.darker参考答案话题 1 与长辈的故事Passage 11.B2.C3.B4.A5.B6.C7.B8.C9.B10.APassage 21.C2.B3.C4.D5.D6.A7.B8.B9.A10.C11.B12.B13.D14.C15.A话题 2成长的故