资源描述：
《大学英语六级模拟试题4及答案》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
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 PartⅡReadingComprehension(Skimmin
2、gandScanning)(15minutes)Directions:Forquestions1to4,markY(forYES) ifthestatementagreeswiththeinformationgiveninthepassage;N(forNO) ifthestatementcontradictstheinformationgiveninthepassage;NG(forNOTGIVEN) iftheinformationisnotgiveninthepassage.Forquest
3、ions5to10,completethesentenceswiththeinformationgiveninthepassage. RainforestsTropicalrainforestsarethemostdiverseecosystem(生态系统)onEarth,andalsotheoldest.Today,tropicalrainforestscoveronly6percentoftheEarth'sgroundsurface,buttheyarehometooverhalfoftheplanet'splantandanimalspecies.Wha
4、tIsaRainforest?Generallyspeaking,arainforestisanenvironmentthatreceiveshighrainfallandisdominatedbytalltrees.Awiderangeofecosystemsfallintothiscategory,ofcourse.Butmostofthetimewhenpeopletalkaboutrainforests,theymeanthetropicalrainforestslocatedneartheequator.Theseforestsreceivebetwe
5、en160and400inchesofrainperyear.Thetotalannualrainfallisspreadprettyevenlythroughouttheyear,andthetemperaturerarelydipsbelow60degreesFahrenheit.Thissteadyclimateisduetothepositionofrainforestsontheglobe.BecauseoftheorientationoftheEarth'saxis,theNorthernandSouthernhemisphereseachspend
6、partoftheyeartiltedawayfromthesun.Sincerainforestsareatthemiddleoftheglobe,locatedneartheequator,theyarenotespeciallyaffectedbythischange.Theyreceivenearlythesameamountofsunlight,andthereforeheat,allyear.Consequently,theweatherintheseregionsremainsfairlyconstant.Theconsistentlywet,wa
7、rmweatherandamplesunlightgiveplantlifeeverythingitneedstothrive.Treeshavetheresourcestogrowtotremendousheights.andtheyliveforhundreds,eventhousands,ofyears.Thesegiants,whichreach60to150ftintheair,formthebasicstructureoftherainforest.Theirtopbranchesspreadwideinordertocapturemaximumsu
8、nlight.Thisc
