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1、大学英语六级模拟试题4及答案 PartIWriting(30minutes)Directions：Forthispart,youareallowed30minutestowriteashortessayentitledSayNotoPiratedProducts．Youshouldwriteatleast150wordsfollowingtheoutlinegivenbelow:1.目前盗版的现象比较严重2.造成这种现象的原因及其危害3.我们应该怎么做SayNotoPiratedProducts PartⅡR
2、eadingComprehension(SkimmingandScanning)(15minutes)Directions:Forquestions1to4,markY(forYES) ifthestatementagreeswiththeinformationgiveninthepassage;N(forNO) ifthestatementcontradictstheinformationgiveninthepassage;NG(forNOTGIVEN)
3、 iftheinformationisnotgiveninthepassage.Forquestions5to10,completethesentenceswiththeinformationgiveninthepassage. RainforestsTropicalrainforestsarethemostdiverseecosystem(生态系统)onEarth,andalsotheoldest.Today,tropicalrainforestscoveronly6percentoftheEa
4、rth'sgroundsurface,buttheyarehometooverhalfoftheplanet'splantandanimalspecies.WhatIsaRainforest?Generallyspeaking,arainforestisanenvironmentthatreceiveshighrainfallandisdominatedbytalltrees.Awiderangeofecosystemsfallintothiscategory,ofcourse.Butmostofthetim
5、ewhenpeopletalkaboutrainforests,theymeanthetropicalrainforestslocatedneartheequator.Theseforestsreceivebetween160and400inchesofrainperyear.Thetotalannualrainfallisspreadprettyevenlythroughouttheyear,andthetemperaturerarelydipsbelow60degreesFahrenheit.Thisst
6、eadyclimateisduetothepositionofrainforestsontheglobe.BecauseoftheorientationoftheEarth'saxis,theNorthernandSouthernhemisphereseachspendpartoftheyeartiltedawayfromthesun.Sincerainforestsareatthemiddleoftheglobe,locatedneartheequator,theyarenotespeciallyaffec
7、tedbythischange.Theyreceivenearlythesameamountofsunlight,andthereforeheat,allyear.Consequently,theweatherintheseregionsremainsfairlyconstant.Theconsistentlywet,warmweatherandamplesunlightgiveplantlifeeverythingitneedstothrive.Treeshavetheresourcestogrowtotr
8、emendousheights.andtheyliveforhundreds,eventhousands,ofyears.Thesegiants,whichreach60to150ftintheair,formthebasicstructureoftherainforest.Theirtopbranchesspreadwideinordertocapturemaximumsunlight.Thisc
