人教版高中英语必修一Unit4Earthquakesperiod5测试(教师版)001

阶段质量检测（四）Unit4学业质量标准检测第一部分：听力(略)第二部分：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A、B、C和D四个选项中，选出最佳选项。A(2018·河北省邯郸市高一上学期期末)FourworstearthquakesinthisworldNorthernSumatra,IndonesiaMagnitude(震级)—8.6,Date—March28,2005AnearthquakehappenedatSumatraIslandsinthetouristymonthofMarch．Beinganislandarea,theearthquakegaverisetoatsunami(海啸)waveandspreadtoareasasfarasSriLanka．Thenumberofdeathsisabout1,500withmorethan400peoplegettinginjured.RatIslands,AlaskaMagnitude—8.7,Date—April02,1965Thisearthquakeonlyhappenedinsidewaterandallthelosseswerebecauseofthetsunamiwavescausedbyit．Thequakegaverisetoahugetsunamicausingalossofthousandsofdollars．Thegoodnewsinthisquakewasthatnohumanlossorinjurieswerereportedintheseislands.BioBio,ChileMagnitude—8.8,Date—February27,2010Thisquakehappenedtotakethelivesofmorethan500people．Thetsunamicausedbythisquakeaddedtotheeffectsbyforcinghundredsofthousandsofpeopletoleavetheirhome,ofwhichabout50arestillmissing．Thenumberofinjuredpeoplereachedalevelof12,000,thusmakingoneoftheworstearthquakesofthehumanhistory.Sumatra,IndonesiaMagnitude—9.1,Date—December26,2004Havingitsnametwiceinthelist,itisclearthatSumatracomesintheareathatismostprone(易于……的)toearthquakes.Just3monthsbeforetheearthquakeof8.6magnitude,thisquakecausedmuchmorelossoflifeandwealththanthelaterone!Theearthquakegaverisetoahugetsunamikillingabout300thousandpeopleallaroundthecountriesofSouthAfricaandSouthAsia.文章大意：本文介绍了人类史上的四次大地震。

21．Theearthquakeduringwhichnobodywasinjuredhappenedin__B__.A．2005B．1965D．2004C．2010解析：细节理解题。根据对第二则地震消息的介绍，特别是最后一句话“Thegoodnewsinthisquakewasthatnohumanlossorinjurieswerereportedintheseislands.”可知，1965年的这次地震无人员伤亡。22．What'sthemagnitudeoftheearthquakecausingthemostinjuries？__C__A．8.6．B．8.7.D．9.1.C．8.8．解析：细节理解题。由四则消息的介绍可知，发生在智利的震级8.8的这次地震造成了最多的人员伤亡。23．Whichareaismostlikelytobehitbyanearthquake？__A__A．Sumatra．C．BioBio．B．RatIslands.D．SouthAsia.解析：细节理解题。由最后一则消息中的第一句话“Havingitsnametwiceinthelist,itisclearthatSumatracomesintheareathatismostprone(易于……的)toearthquakes.”可知，Sumatra是最可能受到地震袭击的地方。BPerfectDisasterAllaroundusbuildingsshook．Wedecidedtoleavethetown．Westoppedoncewehadleftthebuildingsbehindus．Thecartsweremovinginoppositedirections,thoughthegroundwasperfectlyflat,andtheywouldn'tstayinplaceevenwiththeirwheelsblockedbystones.Inaddition,itseemedasthoughtheseawasbeingsucked(吸)backwards,asifitwerebeingpushedbackbytheshakingoftheland．Certainlytheshorelinemovedoutwards,andmanyseaanimalswereleftondrysand.Behinduswerefrighteningdarkcloudsthatopeneduptoshowfire-likelightning,butbigger．Notlongafterthatthecloudsreacheddowntothegroundandcoveredthesea．Nowcamethedust,thoughstillthin．Ilookedback．Adensecloudappearedbehindus,followinguslikeafloodpouringacrosstheland．Thenadarknesscamethatwasnotlikeamoonlessorcloudynight,butmorelikebeinginaclosedandunlightedroom．Youcouldhearwomenandchildrencrying,menshouting．Somewerecallingforparents,othersforchildren;theycouldonlyrecognizethembytheirvoices.Darknessandashescameagain,agreatweightofthem．Westoodupandshooktheashoffagainandagain;otherwisewewouldhavebeencoveredwithitandcrushedbytheweight.Atlastthecloudbecamethinnerandthinneruntilitwasnomorethansmokeorfog．Soontherewasrealdaylight．Thesightthatmetourstillterrifiedeyeswasachangedworld,buriedinashlikesnow.―fromPliny'slettertoafriend文章大意：文章是Pliny写给朋友的信，介绍地震后地动山摇，天昏地暗的情景，和人们惊慌失措的样子。24．Plinyleftthetownafter__C__．A．theeruptionB．theskybecamedarkD．theseawentbackC．thebuildingsbeganshaking解析：细节理解题。从文章第一段的句子：Allaroundusbuildingsshook．Wedecidedtoleavethetown.可知Pliny离开城镇是在房屋开始摇晃以后，选C。25．Thecartswouldn'tstaystillbecause__A__.A．theearthwasshakingB．theseasuckedthembackwardsC．thewheelshadstonesunderthemD．thelighteningfrightenedthehorses解析：推理判断题。文章在说明“Thecartswere..．flat,andtheywouldn'tstayinplace...bystones.”之前已有交代，说明是大地抖动，这正是说明了产生此种结果的原因，选A。26．Thereasonwhyitwasdarkisthat__B__.A．itwasverylateatnightB．cloudsofashcoveredthesunD．therewasnomoonthatnightC．therewasaverybadstorm解析：细节理解题。根据第三段的句子：Nowcamethedust,thoughstillthin．Ilookedback．Adensecloudappearedbehindus,followinguslikeafloodpouringacrosstheland．Thenadarknesscamethatwasnotlikeamoonlessorcloudynight,butmorelikebeinginaclosedandunlightedroom.可知天黑是因为灰尘掩盖了太阳，选B。27．Peopletriedtofindtheirrelationsbycallingouttheirnamesand__A__.A．listeningtotheirvoicesB．runningaboutlookingforthemC．shakingtheashoffpeopleD．watchingpeopleastheyranpast解析：细节理解题。根据第三段最后一句：Somewerecallingforparents,othersforchildren;theycouldonlyrecognizethembytheirvoices.可知人们想通过叫他们的名字和听他们的声音找到他们的亲戚。C(2017·福建省龙岩四校第一学期半期考)LiBingyinisnowstudyinglawattheSternSchoolofBusinessatNewYorkUniversity．ShewrotethisletterjustbeforehurricaneSandydestroyedtheEastCoast.Dearreaders，Thestormwillreallytakeatollonthecity!RightnowIamsittinginmydormitory,waitingfortheblackout(停电)tocomeanysecond,andlisteningtothewindhowloutsidemywindows．HurricaneSandyissupposedtohittheEastCoasthardtoday．Duetothebadweather,mostschoolsanduniversitieshavecanceledclassesforMondayandTuesday.Luckily,theuniversityhastakenmeasurestoprepareforthisstorm．Universityofficialssentoute-mailswithexplanationinthecaseofablackout,evacuation(撤离),orotheremergency．Justrecently,Ireceivedseveraltextmessagesfromtheschoolaboutpoweroffincertaindormitories．Theyadvisedustoprepareabagwithessentials(生活必需品),incaseweneededtoleavethebuildingandrelocatetoasaferlocation.YesterdayIwentouttobuyaflashlight,butallofthenearbystoresweresoldout．Everyonewasstockingupon(存储)water,foodandothersuppliesforthestorm.Rightnowthecityisunusuallyquiet．Onanyotherday,therewouldbethesoundsofcars,peoplechatting,andstreetartistsperforming．Tonight,there'sjustthewindandrainhittingthewindow．Thesubwaysystemhasbeenclosedsincelastnight,andthereisrarelyanyoneonthestreets．HopefullyHurricaneSandywillsoonpasswithoutleavingmuchdamage.Sincerely，LiBingyin文章大意：本文是一封书信。一个就读于纽约大学的学生讲述一场将要侵袭纽约的暴风雨。28．Fromthepassagewecanknowthat__B__.A．StormSandyhasalreadycausedgreatdamagetoNewYork.B．Theauthorwentouttobuyaflashlightbutfailed.C．Mostpeoplehaven'tbeenpreparedforthecomingofStormSandy.D．Mostschoolsanduniversitieshavecanceledclassesfor3days.解析：考查细节理解。根据第三段第一句“YesterdayIwentouttobuyaflashlight,butallofthenearbystoresweresoldout.”可知，作者去买手电筒但是没有买到。故选B。根据第一段第一句可知，暴风雨还没有造成损失，故A项错误；根据第三段第二句可知，大部分人都做了准备，故C项错误；根据第一段最后一句可知，大部分学校已经放假两天，故D项错误。29．Whatmeasureshastheuniversitytakentoprepareforthestorm？__D__A．Theuniversityhasaskedstudentstoleavetheschoolatonce.B．Theuniversityhasaskedstudentstocloseallthewindowsanddoors.C．Theuniversityhassenttextmessagestostudentsaboutwhattimethestormwillcome.D．Theuniversityhasaskedstudentstopreparenecessarythingsincaseofevacuation.解析：考查细节理解。根据第二段最后一句essentials(生活必需品),incaseweneededtoleavethebuildingandrelocatetoasaferlocation.”D。30．Whatdoestheunderlinedword“takeatoll”means？__A__“Theyadvisedustoprepareabagwith可知，学校让学生们准备必需品以防撤离。故选A．causealossC．floodB．destroyD．bury解析：考查词义猜测。根据文章最后一句“HopefullyHurricaneSandywillsoonpasswithoutleavingmuchdamage”可知，暴风雨还没有到达这个城市，作者希望它很快过去不会留下太多破坏。因此推断画线句句意是：这场暴风雨会对这个城市造成破坏，所以画线词意思是：造成损失。故选A。31．Whatcanweinferfromthelastparagraph？__B__A．NewYorkisaquietcityatothertimes.B．NewYorkisabusycityatothertimes.C．StormSandyhasalreadycome．D．Theairportsystemhasbeenclosedsincelastnight.解析：考查推理判断。根据最后一段第二句“Onanyotherday,therewouldbethesoundsofcars,peoplechatting,andstreetartistsperforming.”可知，平时的纽约城，大街上总是有许多汽车声、人声，还有许多艺术家在表演，因此推断，在其他时候，纽约是一个忙碌的城市。故选B。D(2018·河南省实验中学上学期期中)Earthquakesaresomethingthatpeoplefear．Therearesomeplacesthathavefewornoearthquakes．Mostplacesintheworld,however,havethemregularly．Countriesthathavealotofearthquakesareusuallyquitemountainous.ThemosttalkedaboutearthquakeintheUnitedStateswasinSanFranciscoin1906．Over700peoplediedinit．ThestrongestoneinNorthAmericawasin1964．IthappenedinAlaska.Strongearthquakesarenotalwaystheonesthatkillthemostpeople．In1755,oneofthestrongestearthquakeseverrecordedwasfeltinPortugal．Around2,000peopledied.In1923,averystrongearthquakehitTokyo,YokohamaareaofJapan．Ahundredandfortythousandpeopledied．Mostofthemdiedinfireswhichfollowedtheearthquake.OneoftheworstearthquakeseverwasinChinain2008．Itkilledalargenumberofpeople．TheworstearthquakeeverreportedwasalsoinChina,inwhich400,000peoplewerekilledorinjured．Thisearthquakehappenedin1556.Earthquakesworrypeoplealot．Thereasonisthatweoftendonotknowwhentheyarecoming．Peoplecannotprepareforearthquakes.文章大意：本文属于科普文章。本文主要讲述的是地震及历史上几次有名的地震情况。32．Earthquakeshappen__C__.A．inalltheplacesintheworldB．onlyinthecountriesthathavealotofmountainsC．regularlyinmostplacesintheworldD．onlyinafewplacesalongthecoast解析：细节理解题。根据第一段最后部分的“Therearesomeplacesthathavefewornoearthquakes．Mostplacesintheworld,however,havethemregularly．Countriesthathavealotofearthquakesareusuallyquitemountainous.”有些地方很少或根本没有地震。然而，世界上大多数地方的地震都有规律的。地震频繁的国家通常是多山的。可知地震多数发生在多山的地方，因而是有规律的。分析选项可知C项符合题意。B项错在only。33．Whenandwherewastheworstearthquakeeverreported？__B__A．In1964inAlaska．C．In1923inJapan．B．In1556inChina.D．In2008inChina.解析：细节理解题。根据文章第五段中的China,inwhich400,000peoplewerekilledorinjured．Thisearthquakehappenedin1556．”可知，最可怕的地震是1556年发生在中国的。故选B项。“Theworstearthquakeeverreportedwasalsoin34．Accordingtothepassage,whichofthefollowingisNOTtrue？__A__A．Thestrongertheearthquakeis,themorepeoplearekilled.B．Earthquakesoftencomeunexpectedly.C．Earthquakescancausefires.D．Peoplestilldon'tknowhowtotellwhenanearthquakewillcome.解析：细节理解题。根据文章第三段第一句killthemostpeople.”(强地震并不总是造成大多数人死亡的地震D三项根据常A项。“Strongearthquakesarenotalwaystheonesthat)可知A项不正确，而B、C、识可知都是正确的。因此选35．Whatmaybetalkedaboutintheseventhparagraph？__B__A．Howdoearthquakesworrypeople?B．Whatwillpeopledotoprepareforearthquakes?C．Howcanwesavepeoplewhenearthquakeshappen?D．Howdoearthquakeshappen?解析：推理thatweoftendonotknowwhentheyarecoming．Peoplecannotprepareforearthquakes.”(地震能为地震做准备)。分析句意判断题。根据文章最后一段中的“Earthquakesworrypeoplealot．Thereasonis使人们担忧。原因是我们常常不知道它们什么时候来。人们不知，人们对地震是没办法做很多准备的，接下来的将是人们能够做的事情。分析选项可知B项(人们能为地震准备做些什么)符合题意，故选B项。2分，满分10分)第二节(共5小题；每小题根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。Earthquakescanstrikewithoutwarning．Butmanyinjuriesanddeathsfromthiskindofnaturaldisatercanbepreventedifpeoplefollowthesesafetytips.Ifyou'reinsideabuilding,staythere!Oneofthemostdangerousthingstodoinanearthquakeistotrytoleaveabuilding．__36.G__Droptotheground．Getunderanobject(物体)thatisnoteasilydamaged．Holdontoituntiltheshakingstops．Youcanalsogettoacornerformedbytwowallswithyourarmsoveryourhand．Ifyou'reinbedwhenthequakehits,staythereandprotectyourheadwithapillow.__37.B__Don'ttakeshelterunderatree,streetlights,electricpolesortallbuildings．Ifyouaredriving,stopasquicklyaspossibleandstayawayfromoverpasses(立交桥),buildings,bridgesoranythingelsethatmightfallorcollapsebeneathyou．__38.D__Ifyouaretrappedinruins,coveryourmouthwithahandkerchieforapieceofclothing．Useyourcellphonetocallforhelpifpossible．Don'tshout．__39.C__Tap(敲)onapipeorthewallsorescuerscanfindyou.Bepreparedforaftershocks．__40.F__However,sometimestheyevenhappenmonthslater．Therefore,ifyouarenotinasafeposition(位置)afterthefirstshock,youshouldmovequicklybutcarefullytoasaferplace.A．Don'tmoveaboutorkickupdust.B．Ifyou'reoutside,gotoanopenspace.C．Shoutingcancauseyoutobreatheindust.D．Don'tparkyourcarunderatreeoranytallobject.E．Takeagoodholdofyourcellphoneinthebuilding.F．Theycanhappeninthefirsthoursaftertheearthquake.G．Mostinjurieshappenwhenpeopleinsidebuildingstrytogoout.解析：36．根据前面的内容“不要离开大楼”可知37．由后文可知，38．由前文“如果你在开车”可知，选D。39．该句与前面的“不要大喊大叫”互应。40．由前文“准备”可知第三部分：英语知识运用(共两节；满分。这是在户外的应急措施。余震。45分)第一节：完形填空(共20小题；每小题1.5分，满分30分)阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。(2017·重庆市一中高一月考)Itwasacold,wetdayonJune6,2016,when14-year-oldWasanaarrivedatschool．Waitingoutsidehisclassroomforhisclassmatesto__41.A__,_Wasanastaredatthe__42.C__.Thenhiseyesfelluponthe18-metre-highhillthat__43.B__atthebackoftheclassroom.He__44.A__largeamountsofrainwaterflowingdownthehill,andwaterwasalsobubbling(冒泡)atthebaseofarockonthehill．Forafew__45.B__,Wasanastaredatthewater,wonderingwhyitlookedso__46.D__.Thenithithim—whathesawwas__47.A__tothevideohewasshownduringDisasterManagementclasses．Fearinga__48.C__disaster,heshouted__49.B__atthestudentswaitingoutsidetheirclassrooms．“Run,run,don'tstayhere!The__50.A__onthehillisgoingtofallonus!”Chaos(混乱)brokeout__51.C__thestudentsrantotheopenarea,emergencygatheringpoint(紧急聚集处)．Whensometeachers__52.D__Wasana,heshowedthemthewatergushingfromthehill,andtheystartedleadingthestudentstosaferground.JustthenPrincipalGurusinghedroveintotheschool．Wasanaranovertotellhimwhatwashappening．Afterexaminingthesite(现场),Grrusingheknewtheschoolwasin__53.C__．Theenormousrockatthetopofthehillcouldcomefallingdown__54.B__.__55.B__agroupofteachersandolderstudents,Gurusingheclimbedthehillandtriedtomakethewaterflowawayfromtherock．Theyweretoo__56.A__．Tenminuteslater,theyheardaloud__57.A__asthehugerockrusheddownthehill．TherewaslittleGurusingheandhisgroupcoulddoastheywatchedtheearth__58.C__theirclassrooms．ThankstoWasana's__59.B__action,__60.D__washurtintheaccident(事件)．文章大意：当Wasana看到山上的雨水聚集的奇怪景象时，他联想到在灾难管理课上学到的知识，预知一场山体滑波即将发生，及时向同学和老师们发出警告，让大家及时逃离到安全地带，阻止了原本有可能造成的生命危险事故的发生。41．A．arriveC．reviseB．restD．talk解析：当Wasana到达学校后，他等候在教室外面等待其他同学的“到来”。42．A．bookC．rainB．sunD．hill解析：下一句提到他的眼光落到了那座山上，下一段的开头部分提到他看到大量雨水从山上流下来，由此可推断他目不转睛地盯着“雨水”。43．A．placedB．stoodC．hidD．faced解析：那座山44．A．noticedC．knew“耸立”在教室的后面。stand表示“位于(某处)”。B．feltD．heard解析：他“注意到”大量雨水从山上流淌下来，水在山上的一块岩石下冒泡。45．A．yearsC．hoursB．minutesD．days解析：他看了几“分钟”。46．A．interestingC．movingB．dangerousD．familiar解析：下一句提到他在教室么这一切看起来如此“熟悉”。47．A．similar内播放的录像中看到过类似的景象，所以让他困惑的是为什B．familiarD．closeC．near解析：他突然想到这种“场面”与录像中出现的场面“类似”。B．staringD．leaving内容可知他感觉灾难“即将到来”。48．A．goingC．coming解析：根据下一句中的49．A．happilyC．rudelyB．loudlyD．angrily解析：他感到灾难即将到来，所以“疯狂地”朝等候在教室外面的学生喊叫，让他们跑离这个危险之地。50．A．rockC．treeB．sandD．water解析：本段前半部分提到他注意到雨水在一块岩石下冒泡，并意识到了潜在的危险，所以他预感“岩石”要从山上滚下来。51．A．untilC．asB．ifD．although解析：上文提到他让等候在教室外面的学生离开这个地方，所以当学生们跑到空旷的指的定紧急事故集合点时，混乱发生了。52．A．questionedB．respectedC．instructedD．approached解析：当一些老师“靠近”他的时候，他让他们看了从山上涌下来的水，然后他们开始带领学生去更为安全的地方。

53．A．safetyC．dangerB．damageD．need解析：Wasana跑过去告诉了校长发生的事情，校长“查看”了这个地点后，知道这所“危险”之中。indanger“处于危险之中”。学校处于54．A．aperiodoftimeC．atonetimeB．atanytimeD．forsometime解析：55．A．OrganizingC．Asking山顶的巨大岩石“随时”可能坠落下来。B．LeadingD．Helping解析：校长“带领”着一群老师和年龄比较大的学生爬上了山，试图让水从岩石处流走。56．A．lateC．nervousB．earlyD．careful解析：57．A．soundC．voice根据本句后半部分中的内容可知他们太“迟”了，一切努力都无济于事。B．wordD．shout解析：巨大的岩石滑下山坡“声音”巨大。58．A．moveC．coverB．rushD．wave解析：59．A．crazyC．patient校长和他的团队眼睁睁地看着泥水“吞噬”了教室，却无能为力。B．quickD．direct解析：行动非常“迅速”。60．A．someoneC．anyone文章前半部分提到Wasana带领学生提前离开了这个危险的地方，由此可知他的B．onlyoneD．noone解析：多亏了Wasana的快速行动和仔细观察，第二节：(共10小题；每小题1.5分，满分15分)阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。(2018·福建省龙岩市长汀一中高一上期中)a．m.everythingbegantoshake．__61.It__seemedasiftheworldwasatanend！“没有人”在这事次故中受伤。AtElevenkilometersdirectlybelowthecityoneofthegreatest__62.earthquakes__(earthquake)ofthe20thcenturyhadbegun.ItwasfeltinBeijing,__63.which__ismorethantwohundredkilometersaway.One-thirdofthenationfeltit.Ahugecrackthatwaseightkilometerslongandthirtymetreswidecutacrosshouses，roadsandcanals.Steamburstfromholesintheground.Hardhillsofrockbecameriversof__64.dirt__(dirty)．In15terriblesecondsalargecity__65.lay__(lie)inruins.The__66.suffering__(suffer)ofthepeoplewasextreme.Two-thirdsofthepeoplediedor__67.wereinjured__(injure)duringtheearthquake.Thousandsoffamilieswerekilledandmanychildrenwereleft__68.without__parents.Thenumberofpeople__69.who/that__werekilledor__70.seriously__(serious)injuredreachedmorethan400,000.文章大意：本文主要叙述了唐山大地震的过程，剧烈程度以及大地震所带来的破坏和死亡状况。解析：61．考查固定句型。Itseemedasif是英语的固定句型“好像……”。句意：好像是世界末日。62．考查式，所以答案填earthquakes。63．考查定。先行词是Beijing，在定语从句中作主语，因为是非限制性定语从句，所以用which来引导。64．考查65．考查时态。唐山地震发生在上个世纪，所以动词用过去时，lie的过去式是lay。66．考查子可知此处要填的是主语，所以用suffering作主语，意为“伤害”。67．考查谓语动词用复数形式，所以答案填wereinjured。68．考查介词。很多的孩子成了孤儿，without是介词“没有”。69．考查定。先行词是people，在定中作主语，所以用who或者that来名词的数。根据句意：世界上最大的地震之一，oneof后跟可数名词的复数形语从句名词。分析句子可知此处要填名词，dirt是名词“尘土，灰尘”。非谓语动词。分析句主谓一致。句意：三分之二的人死了或者受伤，主语是Two-thirdsofthepeople，语从句语从句引导。70．考查副词。此处是用副词来修饰形容词injured，严重受伤。(满分35分)短文改错(共10小题；每小题1分，满分第四部分：写作第一节：10分)假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文。文中共有10处错误，每句中最多有两处。错误涉及单词的增加、删除或修改。增加：在缺词处加一个漏词符号(∧)，并在此符号下面写出该加的词。删除：把多余的词用斜线(\)划掉。修改：在错词下面画一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2．只允许修改10处，多者(从第11处起)不计分。Sandstormshavebeenamajordisasterformanycountriesforcentury．Sandstormsbeganindesertareas．Thisisprocessthathappenswhenlandbecomesdesertbecauseofclimatechangesandbecauseofpeoplecutdowntreesanddigupgrass.Thestormssometimescontinuealldayandthetrafficmoveveryslowlybecausethethickdustmakesitdifficultlytosee．Whenasandstormarrivesthecity,weatherexpertsadvisepeopledonottogoout．It'sdifficulttobreath,andthedustmakespeopleillness.答案：Sandstormshavebeenamajordisasterformanycountriesforcentury．Sandstormsbegancenturiesbeginindesertareas．Thisis∧processthathappenswhenlandbecomesdesertbecauseofclimateachanges