2017-2018学年高中英语 unit 5 the power of nature单元质量评估 新人教版选修6

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1、单元质量评估(五)时间：100分钟　分数：120分第一部分　阅读理解(共两节，满分40分)第一节(共15小题；每小题2分，满分30分)阅读下列短文，从每题所给的四个选项(A、B、C和D)中，选出最佳选项。AThoughlargercitiesweremostlyspared，Sunday'stornadoesdamagedsomesmalltownsinthemiddleoftheUS.OneofthehardesthitwasVan，Texas，atownofabout2，600peoplelocated70miless

2、outheastofDallas.Windstherereachedupto140milesperhouranddamagedabout30percentofthearea.Weatherexpertssayitwasthestrongesttornadotohitthetowninmorethan70years.EmergencyworkersinVanmovedquicklytohelpthoseaffected，buttwopeoplewerekilledandmorethantwodozenwereinjuredb

3、ythetornado'swinds.AdriverinthenearbytownofCorsicanawaskilledbyfloodwatersthathadrisenafterthestorm.InLakeCity，Iowa，atornadotoretheroofoffSouthCentralCalhounHighSchool.Onehundredandfiftypeoplehadgatheredinthesafetyoftheschool'sbasement，andallescapedwithoutmajorhar

4、m.Ninepeoplewereinjuredinthe130-mphwindsofatornadothattoucheddowninDelmont，SouthDakota，buttornadoesweren'ttheonlysevereweatherthatstatesawonSunday.ResidentsintheBlackHillsregionwerefacedwithalate-springsnowfallof10to18inches.ScientistsmeasuretornadoesusingtheEnhan

5、cedFujita(EF)Scale.Itcategorizestornadoesbasedontheamountofdamagetheycauseandtheirestimatedwindspeed.EF1tornadoesaretheweakest，whileEF5tornadoesaretheseverest.ThetornadoinVanwascategorizedasanEF3.Althoughtornadoescanhappeninanystate，theyaremostcommoninthecentralUS

6、.Thisiswhythatpartofthecountryisnicknamed(给……起绰号)TornadoAlley.Thoughthispastweekend'sstormsweredamaging，theywerenotabnormalforthistimeofyear.MoretornadoeshittheUSinMaythaninanyothermonth，accordingtotheNationalWeatherService(NWS)．“We'vehadatleastonetornadoreporteds

7、omewhereinthenationeverydaysinceMay2，”weatherexpertGregCarbinsaid.“It'sadangeroustimeofyear.”【语篇解读】　本文是说明文。龙卷风席卷了美国中部。1．WhichpartoftheUSwashitbytornadoesonSunday?A．Thecentralpart.　　B．Theeasternpart.C．Thewesternpart.D．Thesouthernpart.解析：细节理解题。由第一段中的“Sunday'stornado

8、esdamagedsomesmalltownsinthemiddleoftheUS.”可知，周日美国中部受到了龙卷风的袭击。答案：A2．WhathappenedtopeopleinSouthCentralCalhounHighSchool?A．Theywerekilledbyfloodwaters.B．