安徽省亳州市名校2025年英语七年级第二学期期中经典模拟试题含答案

安徽省亳州市名校2025年英语七年级第二学期期中经典模拟试题满分120分，时间90分钟一、完形填空(10分)1、

通该下面短文,掌握其大意,然后在每小题所给的四个选项中,选出一个最佳答案。WeifanginShandongProvinceisfamousforthekites.Ithasalonghistoryofkites.Atfirst,onlythearmy(军队)usedkitesandpeople____1____usedkites.Thearmyusedkitestomeasuredistances(测量距离).DuringtheMingDynasty(朝代),kitesbecame____2____inChinabecausemanypeoplelikedtomakekitesandflykites.Kitesaremadeofbamboo.TherearetraditionalChinesepaintingsonthemsuchastheMonkeyKingandNezha.YangHongweiisakitemaker.She____3____tomakekitesfromhergrandfather.Hergrandfatheris____4____withher.Sometimessheisafraidofhim.Shemakeskitesvery____5____justlikehergrandfather.Dayafterday,sheis____6____makingkites.After____7____theskillfor10years,shestartshershop.Intheshop,she____8____kitestopeople.Manyplacesaroundtheworldhaveatradition(传统)offlyingkites.Buttheideabehindourkitesisspecial.OnYang’skites,peoplecanseepictureslikebutterflies,birdsandsomeprints.TheprintstellChinesestories.Shehasakitewithaphoenix(凤凰).Oneachsideofthephoenix,therearepicturesof10famouswomenfromChinesehistory.Eachwoman’spictureiskindofdifferentfromtheothers.Yangspendslotsoftimereadinghistorybooksandtalkingwithfriendsaboutthestories.Inherfreetime,shealsotravelstodifferent____9____includingGermany,Australia,theUnitedStatesandNewZealand.ShewantstoshowChinesekitestotheworld.“Itisanimportant____10____ofminetoletmorepeoplearoundtheworldknowmoreaboutChina,”shesays.1.A.always B.usually C.sometimes D.never2.A.popular B.interesting C.useful D.relaxing3.A.helps B.hopes C.learns D.wants4.A.strict B.angry C.busy D.bored5.A.carefully B.sadly C.luckily D.terribly6.A.goodat B.goodwith C.goodfor D.goodto7.A.making B.practicing C.winning D.losing8.A.sells B.gives C.takes D.flies9.A.villages B.towns C.cities D.countries10.A.job B.story C.rule D.flag二、阅读理解（40分）2、Lost:MycatItiswhite.Lostitintheevening.MynameisJennyBrown.Mytelephonenumberis552-6348.Lost:MyschoolbagItisgreen.Thereisapencilboxandfivebooksinit.MynameisKellySmith.E-mailmeatkellysmith@126.com.Found:AnotebookGaoFang,isthisyournotebook?Itisinthelostandfoundbox.JimFound:AsetofkeysArethesekeysyours?Pleasecallmeat336﹣7688ore-mailmeatmary112@139.com.1.Wholostawhitecatinthemorning?________A.Mary B.Jim C.Jenny D.Kelly2.Marklostasetofkeys,andhecan________.A.call552-6348 B.E-mailkellysmith@126.comC.call366-7855 D.E-mailmary112@139.com3.WhatcolourisKelly’sschoolbag?________A.It’sgreen. B.It’sblue. C.It’sbrown. D.It’syellow.4.________is/areinthelostandfoundbox.A.Fivebooks B.Anotebook C.Asetofkeys D.Apencilbox5.WhichofthefollowingisTRUE?________A.Jenny’sfamilynameisSmith.B.ThereisapencilinKelly’sschoolbag.C.Jimfoundanotebook.D.WeknowGaoFang’stelephonenumber.3、____1____JennyandLilyarelookingforatwo-bedroomapartmentwhichisnotfarfromtheirschool.____2____MrsLiuoftenfallsill.Shewantstodosomethingtobecomehealthy.____3____WangLinfoundajobfarawayfromhishouse.Heneedstobuyacar.Buthedoesn’thaveenoughmoneytobuyanewone.____4____MaryisfreeonSaturdays.Shewantstofindapart-timejobtomakesomemoney.____5____XiaoMingfoundahandbagonhiswaytoschool.Heislookingforitsowner.A.SALEbeautifulPOLOcarisonsale.Itwasboughtin2006.Thecolorisred.Only￥50,000.CallMrWangat987-8678.B.LOSTMissLilostherhandbagonherwayhomeyesterday.ThereissomemoneyandanIDcardinit.Hermobilephonenumberis1189982356.C.JOBDoyouwanttofindapart-timejob?Mydaughterisn’toldenoughtolookafterherself.WhocantakecareofheronSaturdays?CallMr.Leeat789-3566.D.RENTcleanandquietapartmentneartheschool.Therearetwobedrooms.600yuanamonth.CallJackSmithat3452-7889.E.HEALTHCLUBgoodplaceforyoutokeepfit.Activities:running,dancing,swimmingandsoon.F.SALEbeautifulhousenearthesea.Therearetwobedroomsandalivingroom.Youcanseetheseafromthebedroom.G.FOUNDblueschoolbag.Ithasablackandwhitepandaonthefront.Inthebag,thereisapencilcase,aruler,anEnglishbookandtworednotebook.4、JackandLilyistalkingabouttheirschoolrules.Let’shavealook.YoumustYoumustn’t1.Arriveatschoolbyhalfpastseveneverymorning.1.Wearhats.Ifwegetupearly,wecanhavemoretimetoread.Also,it’simpolitetowearhatsintheclassroom.2.Handinyourhomeworkbyeight.2.Eatordrinkintheclassroom.Doinghomeworkisagoodwaytofindoutwhatwedon’tunderstandinclass.3.Lookcleanandtidy.3.Bringphonestoschool.It’sabig“NO”forstudentstotakethephonetoschoolanduseitintheclassroom.4.Bequietinthelibrary.4.Runorshout（喊叫）inthehallways.5.Playsportsonlyontheplaygroundafterclass.5.Talkloudly.6.Bekindandfriendlywhenateachercomesintotheclassroom.6.Fight.Neverfightwithothers.Wecanalwaysdealwith（处理）theproblemsinanicerway.1.Youshould________inthelibrary.A.eatanddrink B.runandshout C.playsports D.bequiet2.JackandLilydon’tgiveideasontherule“________”.A.Handinyourhomeworkbyeight. B.Bringphonestoschool.C.Talkloudly. D.Fight.3.WhichofthefollowingisTRUEaccordingtothepassage?A.Youcanarriveatschoolat7:20inthemorning. B.Youcanwearhatsifyoulookcleanandtidy.C.Youcanhandinyourhomeworkatanytime. D.Youcanfightwithyourclassmatesontheplayground.4.Thereare________thingsthatstudentsshoulddoaccordingtothepassage.A.6 B.8 C.10 D.125.Thepassageiswrittento________.A.askstudentstobepoliteandclean B.askstudentstofollowschoolrulesC.teachstudentstomakeschoolrules D.teachstudentstodealwithproblems5、InthenortheastofItaly,Veniceisknownasafloatingcity,butVeniceisnotonesingleisland.Itismadeupofover100islandsconnectedbywaterwaysandbridges.WaterisabigpartoflifeinVenice.Theboatisthemostcommonwaytotravel.Youcanseeatraditionalboatcalleda“gondola”inVenice.Unfortunately,waterputsVeniceindanger.SaltwaterisslowlydamagingthebasesofVenicebuildings.SoVeniceissinking.Eachwinter,thefloodmakesitworse.Buttheseworrieswillpasswithanewprogram.VeniceisinthemiddleoftheLagoonwiththreenaturalgapstothesea.Rainandstrongwindsmakeseawatertravelthroughthegaps.Theyhavebuiltdozensofgatestoholdbackthesea.Eachofthesegatesis20meterswideand30meterslong,andthegateswillberaisedtoseparatethecityfromthesea.Butonlytimewilltellifthisprojectisright.However,ifyouwanttovisitVenice,youhavetobeearlier.TheinternationalatmosphereismakingVenicebecomeanormalcityinrecentyears.Themotorspeedboatisreplacingthegondola.MoreandmorefastfoodcanteenslikeMcDonald’sareonthesmallstreetsinsteadoftraditionalglass-makingshops,maskshopsandpotty(陶器)toyshops.Butstill,whenyouareholdingapapercupofcoffeefromthefamousHarry’sbarlikeHemingway(海明威),orenjoyingthesunsetontheGrandCanal(大运河),youcanunderstandwhatis“ThesmelloftheRenaissance”.1.WhichcountryisVenicelocatedin?A.America. B.Australia. C.Italy. D.China.2.HowmanyislandsisVenicemadeupof?A.Over100. B.Over200. C.Over300. D.Over400.3.Whathavebeenbuilttoholdbackthesea?A.Pottytoysshop. B.Maskshop. C.Glass-makingshop. D.Dozensofgates.4.TheauthoradvisesthevisitorstovisitVeniceearlier________.A.becauseitisgoodforVenice B.becauseVeniceischangingfasterandfasterC.becauseVenicewillbeworseandworse D.becauseitisbadforVenice三、补全对话（10分）6、

请通读下面对话，根据对话内容，从下面的选项中选出能填入空白处的最佳选项。选项中有一项为多余的选项。Lucy:Hi,Lily._____1_____Lily:Hi,Lucy.I’mreadingabook.Ilikereading._____2_____Lucy:Ilikeplayingtheguitar._____3_____Lily:It’sdifficultforme._____4_____Lucy:Yes,I’dloveto.Lily:_____5_____Lucy:HowaboutthisSaturday?Lily:Goodidea.Thankyou.A.Howaboutyou?B.Whenwillyouteachme?C.Howoftendoyouplaytheguitar?D.Whatareyoudoingnow?E.Wouldyouliketoteachme?F.Ithinkit’sinteresting.四、短文填空（10分）7、

请用适当的词完成下面的短文，并把所缺单词填写在答题卡指定的位置上。每个空只能填写一个形式正确、意义相符的单词。JimSmithisapoorboy.Onedayheisverycold,sohecomestoahouseandasksayoungwoman____1____aglassofhotwater.Thewomanisvery____2____.Shegiveshimaglassofhotmilk.Jim____3____themilkandthenasks,“How____4____shouldIpayyou?”“Youdon’tneedtopay,”sheanswerswithasmile.Jimthanksheralot.Yearslater,Jimbecomesa____5____.Oneday,thewomangoestohishospital____6____sheisbadlyill.Jim____7____herandtrieshisbesttosaveherlife.Soonthewomangetsbetter.Shegoestocheckthebill(账单)beforeshe____8____thehospital.Jimgivesherthe____9____.OnitareJim’swords:Paidinfullforoneglassof____10____.五、语法填空（10分）8、

Therearedeserts(沙漠)allovertheworld.Mostdesertsareveryhot___1___dry.Butsomepartsofadesertcanbecomeverycolourfulafteritrains.Manyplantsmakeflowersonlywhenitrains.Ifthereiswater,thedesertcanbeahometomanylivingthings.Scientistsaretrying___2___thedesertsintogoodlandagain.Scientistswanttobringwatertothedesertssothatpeoplecanliveandgrowfood.They___3___alotaboutthedesertsnow.Butmoreandmoreplacesontheeartharebecomingdeserts.Itishard___4___scientiststochangethedesertsintime.Scientiststhinkthatpeoplemaketoo___5___deserts.Peoplearedoingbadthingstotheearth.They___6___toomanythingsfromtheearth,buttheyneverpaidforthem.Someplacesontheearthdon’tgetmuchrain.Buttheystilldon’tbecomedeserts.Thisis___7___somegreenplantsaregrowingthere.Smallgreenplantsandgrassareveryimportanttodryplaces.Plantsdon’tlet___8___sunmaketheearthdry.Whentherain___9___,theplantskeepthewater.Withoutplants,theland____10____becomedesertseasily.Howusefultheplantsare!1.A.and B.but C.so D.or2.A.turn B.turned C.turns D.toturn3.A.learns B.willlearn C.arelearning D.learned4.A.of B.for C.with D.off5.A.little B.few C.many D.much6.A.aregetting B.got C.get D.getting7.A.so B.if C.because D.when8.A.a B.an C.the D./9.A.falls B.fell C.falling D.fallen10.A.should B.must C.need D.will六、阅读表达（10分）9、

请阅读以下短文，根据所提供的信息，回答5个问题。把答案写在答题卡指定的位置上。It’sthreeo’clocknow.SomestudentsofClassSixareontheplayground.Theyaredoingsportsnow.Look!CindyandMikeareplayingbasketball.Theyplayitverywell.LiHuaistakingawalkwithhisfriends.Theylikewalkingandtheythinkitisgoodexercise.Theyarehavingagoodtimeontheplayground.Theotherstudentsareintheclassroom.Whataretheydoingnow?Look!MaryandBobarecleaningtheclassroom.Frankiskindoftired(累).Heissleepingonthedesk.Emmaisnotgoodatmath.Sosheisstudyingmath.Tomisakindboy.Hismathisgood.HeishelpingEmmawithhermath.Aliceisreadingbooks.Shelikesreadingverymuch.Jackisdrawing.Hecandrawwell.Heisdrawingpandas.Pandasarehisfavoriteanimals.Hethinkspandasarekindofcute.ThestudentsofClassSixareallhappybecausetomorrowisSaturday,andtheydon’tneedtogotoschool.1.WherearesomestudentsofClassSix?___________________________________________________________________2.WhoisLiHuatakingawalkwith?___________________________________________________________________3.IsEmmagoodatmath?___________________________________________________________________4.WhatisFrankdoing?___________________________________________________________________5.WhyarethestudentsofClassSixareallhappy?___________________________________________________________________七、书面表达（20分）

英语课上，老师让你们谈谈自己的好习惯。请你根据提示内容写一篇60词左右的英语短文，谈谈你的好习惯，可适当发挥。开头已给出，不计入总词数。提示:1.起床早，上学从不迟到；2.常吃健康食品；3.放学后做运动；4.睡前读书。Hello,everyone.Letmetalkaboutmygoodhabitsnow._______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

参考答案一、完形填空(10分)1、1.D2.A3.C4.A5.A6.A7.B8.A9.D10.A【解析】【导语】这是一篇说明文，主要介绍了风筝起源，以及风筝手艺人杨红卫。【1题详解】句意：起初，只有军队使用风筝，人们从不使用风筝。always总是；usually通常；sometimes有时；never从不。根据“onlythearmy(军队)usedkites”可知，说的是人们从不使用风筝。故选D。【2题详解】句意：在明代，风筝在中国流行起来，因为许多人喜欢做风筝和放风筝。popular受欢迎的；interesting有趣的；useful有用的；relaxing放松的。根据“becausemanypeoplelikedtomakekitesandflykites”可知，说的是风筝在中国流行起来。故选A。【3题详解】句意：她从祖父那里学会了做风筝。helps帮助；hopes希望；learns学；wants想要。根据“YangHongweiisakitemaker.”可知，说的是她从祖父那学做风筝。故选C。【4题详解】句意：她的祖父对她很严格。strict严格的；angry生气的；busy忙碌的；bored无聊的。根据“Sometimessheisafraidofhim.”可知，说的是祖父对她很严格。故选A。【5题详解】句意：她做风筝很仔细，就像她的祖父一样。carefully仔细地；sadly悲伤地；luckily幸运地；terribly非常地。根据上文“Hergrandfatherisstrictwithher.”可知，应是指她做风筝很仔细。故选A。【6题详解】句意：日复一日，她很擅长制作风筝。(be)goodat擅长；(be)goodwith善于应付……的；(be)goodfor对……有好处；(be)goodto对……友好。根据“Dayafterday”可知，经过日复一日的练习，她很擅长做风筝了。故选A。【7题详解】句意：在练习了10年这项技能后，她开了自己的店。making制作；practicing练习；winning赢；losing输。根据“theskill”可知，应该说的是练习技能。故选B。【8题详解】句意：在商店里，她向人们出售风筝。sells卖；gives给；takes带；flies飞。根据“Intheshop”可知，在商店里应该是卖风筝。故选A。【9题详解】句意：在空闲时间，她还会去不同的国家旅行，包括德国、澳大利亚、美国和新西兰。villages村庄；towns城镇；cities城市；countries国家。根据“includingGermany,Australia,theUnitedStatesandNewZealand”可知，说的是去不同的国家旅行。故选D。【10题详解】句意：让世界各地更多的人了解中国是我的一项重要工作。job工作；story故事；rule规则；flag旗帜。根据“letmorepeoplearoundtheworldknowmoreaboutChina”可知，说的是让世界各地的人了解中国是她的工作。故选A。二、阅读理解（40分）2、1.C2.D3.A4.B5.C【解析】【导语】本文是四则失物招领启示。【1题详解】细节理解题。根据“Lost:MycatItiswhite.…MynameisJennyBrown.”可知，Jenny丢了一只白猫。故选C。【2题详解】细节理解题。根据“Found:Asetofkeys…Pleasecallmeat336﹣7688ore-mailmeatmary112@139.com.”可知，Mark丢了一套钥匙，他可以给mary112@139.com发电子邮件。故选D。【3题详解】细节理解题。根据“Lost:MyschoolbagItisgreen.”可知，Kelly的书包是绿色的。故选A。【4题详解】细节理解题。根据“Found:AnotebookItisinthelostandfoundbox.”可知，一个笔记本在失物招领箱里。故选B。【5题详解】细节理解题。根据“Found:Anotebook…Jim”可知，吉姆找到了一本笔记本。故选C。3、1.D2.E3.A4.C5.B【解析】【分析】本文主要讲述了房屋出租广告、健康俱乐部广告、车辆降价出售广告、兼职工作信息和寻物启事【1题详解】根据“JennyandLilyarelookingforatwo-bedroomapartment…”可知，珍妮和莉莉正在寻找公寓，根据右侧备选内容“Acleanandquietapartmentneartheschool.”可知，学校附近有公寓出租，所以与RENT部分内容匹配。故选D。【2题详解】根据“Shewantstodosomethingtobecomehealthy.”可知，她想变得健康，根据右侧备选内容“Agoodplaceforyoutokeepfit.”可知，健康俱乐部可以让你保持健康，所以与HEALTHCLUB部分内容匹配。故选E。【3题详解】根据“Heneedstobuyacar.Buthedoesn’thaveenoughmoneytobuyanewone.”可知，王林需要购买一辆二手车，根据右侧备选内容“AbeautifulPOLOcarisonsale.”可知，一辆大众POLO正在打折出售，所以与A.SALE部分内容匹配。故选A。【4题详解】根据“Shewantstofindapart-timejobtomakesomemoney.”可知，她想找一份兼职工作，根据右侧备选内容“Doyouwanttofindapart-timejob?”可知，此处可以提供兼职工作，所以与JOB部分匹配。故选C。【5题详解】根据“XiaoMingfoundahandbagonhiswaytoschool.”可知，小明找到了一个手提包，根据右侧备选内容“MissLilostherhandbagonherwayhomeyesterday”可知，李小姐昨天丢失了一个手提包，所以与LOST部分内容匹配。故选B。4、1.D2.C3.A4.A5.B【解析】【分析】本文介绍了学校规则。【1题详解】细节理解题。根据“Bequietinthelibrary.”可知，在图书馆要保持安静。故选D。【2题详解】推理判断题。根据“Doinghomeworkisagoodwaytofindoutwhatwedon’tunderstandinclass.”可知A选项正确；根据“It’sabig‘NO’forstudentstotakethephonetoschoolanduseitintheclassroom.”可知B选项正确；根据“Neverfightwithothers.Wecanalwaysdealwiththeproblemsinanicerway.”可知D选项正确。文章中两人未对“Talkloudly”给出想法，故选C。【3题详解】推理判断题。根据“Arriveatschoolbyhalfpastseveneverymorning.”可知，七点半前到达学校，A选项正确。根据“Wearhats”在表格右列，可知戴帽子是禁止做的，B选项错误；根据“Handinyourhomeworkbyeight.”可知，八点前要交作业，C选项错误；根据“Fight”在表格右列，可知打架是禁止做的，D选项错误。故选A。【4题详解】推理判断题。根据表格，必须做的事总共6条，故选A。【5题详解】主旨大意题。本文主要介绍了学校规则，因此，本文的目的是要求学生遵守校规，B选项符合。故选B。5、1.C2.A3.D4.B【解析】【导语】本文主要介绍了威尼斯的情况，介绍了它的地理位置，所面临的问题以及旅行建议。【1题详解】细节理解题。根据“InthenortheastofItaly,Veniceisknownasafloatingcity”可知，威尼斯在意大利，故选C。【2题详解】细节理解题。根据“Itismadeupofover100islandsconnectedbywaterwaysandbridges”可知，由100多个岛屿组成的，故选A。【3题详解】细节理解题。根据“Theyhavebuiltdozensofgatestoholdbackthesea”可知，建造了几十个大门来阻挡海水，故选D。【4题详解】细节理解题。根据倒数第二段内容可知，因为威尼斯变化得越来越快，所以建议人们尽早去威尼斯旅行，故选B。三、补全对话（10分）6、1.D2.A3.F4.E5.B【解析】【导语】本文主要是莉莉让露西教她弹吉他的事情。【1题详解】根据“I’mreadingabook.”可知是问对方在做什么，选项D“你现在在干什么”符合语境，故选D。【2题详解】根据“Ilikereading.”和“Ilikeplayingtheguitar”可知自己喜欢阅读，然后问对方喜欢什么，选项A“你呢？”符合语境，故选A。【3题详解】根据“Ilikeplayingtheguitar”和“It’sdifficultforme.”可知此处应介绍喜欢的原因，选项F“我认为这很有趣”符合语境，故选F。【4题详解】根据“Yes,I’dloveto.”可知此句是一般疑问句，选项E“你愿意教我吗”符合语境，故选E。【5题详解】根据“HowaboutthisSaturday?”可知是问时间，选项B“你什么时候教我”符合语境，故选B。四、短文填空（10分）7、1.for2.kind##nice3.drinks4.much5.doctor6.because7.remembers8.leaves9.bill10.milk【解析】【导语】本文主要讲述了吉姆因为很冷向一位女人讨一杯热水，这位女人好心地给了他一杯热牛奶，多年以后吉姆成为了一名医生，遇到了这位女人来医院看病，不但治好了这位女人的病还帮忙支付了医药费，以此来报答当年的“一杯热牛奶”之恩。【1题详解】句意：一天，他觉得很冷，于是来到一户人家，向一位年轻女子要了一杯热水。asksbforsth“向某人要某物”，动词短语，故填for。【2题详解】句意：这个女人非常善良/好。根据“Shegiveshimaglassofhotmilk”可知，给了他一杯热牛奶，所以说这个女人很善良，kind“善良”，nice“好心的”，故填kind/nice。【3题详解】句意：吉姆喝了牛奶，然后问。根据“Onedayheisverycold”及“themilk”可知，他非常冷，所以喝了这杯牛奶，drink“喝”，此句是一般现在时，主语是第三人称单数形式，动词用三单，故填drinks。【4题详解】句意：我应该付您多少钱？根据“Youdon’tneedtopay”可知，询问应该支付多少钱，howmuch“多少钱”，故填much。【5题详解】句意：多年以后，吉姆成为了一名医生。根据“Oneday,thewomangoestohishospital…trieshisbesttosaveherlife”可知，成为一名医生，doctor“医生”，根据a可知，此空应填单数形式，故填doctor。【6题详解】句意：一天，女人因为病得很重而去了他的医院。根据“sheisbadlyill.”可知，空格后是解释去医院的原因，故填because。【7题详解】句意：吉姆记得她，并尽他最大的努力挽救她的生命。根据“trieshisbesttosaveherlife”可知，记得她就是当时给了他一杯热牛奶的那个女人，remember“记得”，此句是一般现在时，主语是第三人称单数形式，动词用三单，故填remembers。【8题详解】句意：她离开医院前去检查账单。根据“Shegoestocheckthebill(账单)beforeshe…thehospital”可知，离开医院之前检查所花的费用，leave“离开”，此句是一般现在时，主语是第三人称单数形式，动词用三单，故填leaves。【9题详解】句意：吉姆把账单给了她。根据“Shegoestocheckthebill”可知，把账单给了她，bill“账单”，故填bill。【10题详解】句意：上面是吉姆的话：医药费已付：一杯牛奶。根据“Shegiveshimaglassofhotmilk.”可知，吉姆报答她当年给的一杯热牛奶，故填milk。五、语法填空（10分）8、1.A2.D3.C4.B5.C6.B7.C8.C9.A10.D【解析】【导语】本文介绍了沙漠化现象以及水土保持的重要性。【1题详解】句意：大多数沙漠都非常炎热和干燥。and和；but但是；so因此；or或者。根据“hot...dry”及常识可知，大多数沙漠炎热且干燥，应用and连接，表示并列关系。故选A。【2题详解】句意：科学家们正努力把沙漠重新变成良田。turn转动，动词原形；turned转动，过去式；turns转动，动词的第三人称单数；toturn转动，动词不定式。根据trytodosth.“尽力做某事”可知，应用动词不定式。故选D。【3题详解】句意：他们现在正在学习很多关于沙漠的知识。learns学习，动词的第三人称单数；willlearn将学习，一般将来时；arelearning正学习，现在进行时；learned学习，过去式。根据“now”可知，应用现在进行时。故选C。【4题详解】句意：科学家们很难及时改变沙漠。of属于……的；for对于；with有；off从……离开。根据“Itishard...scientiststochangethedesertsintime.”可知，itis+形容词+forsb.+todosth.“做某事对某人而言是……的”。故选B。【5题详解】句意：科学家认为人类制造了太多的沙漠。little少得几乎没有，修饰不可数名词；few很少，修饰可数名词复数；many许多，修饰可数名词复数；much很多，修饰不可数名词。根据“Scientiststhinkthatpeople