大学英语四级考试ModelTestThree.doc大学英语四级考试ModelTestThreePartⅠWritingDirections:Forthispart,:给你的外国朋友写一封信,告诉他(她)你已经被美国的一所大学录取,但你苦恼的是自己的听力和口语水平不够,你想寻求他(她)对于如何提高听和和口语的建议。PartⅡprehension(SkimmingandScanning)Directions:Inthispart,-7,choosethebestanswerfromthefourchoicesmarked[A],[B],[C]and[D].Forquestions8-,(ormaybenine)othersorbittheSun,,theMilkyWay,ispartoftheuniverse,,paredtoaperson,ontheotherhand,,926miles(12,756kilometers)attheequator,andithasamassofabout6×,638milesperhour().Don'tdwellonthosenumberstoolong,though;toalotofpeople,theEarthisinconceivably,mind-',''sdiameteratitsequatorisabout100timesbiggerthanEarth's,,mind-,theEarthcouldnotexist,inasense,theEarthisagiantmachine,,-plexreactions,ittransformshydrogenintohelium,,'×1017Wattstotal,,itprovidespowerforavarietyofreactions,,,itselfwouldnothavedevelopedwitho
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