型成为线上所需个川作42.c11LUS Fiber'的好中的3430.rkerlineworker设空处作状43可名圆的划firstfen1137.带形容可strik1ng,为“极北”rained inskills的农成,设空处前的h指38A促为要35.根据语境可at first sight看冠词修饰，向用其复形式文中的heir skills are代上文中的问题：结合31.Agraduation.erettis now on the job可知，该问.is covered.。考查-~段现在时的被动语44考查关系代词，设空处已经得到了解决。st在此处意为“妥态。根据语境可知ett was hired by LUSCC计划的毕业生往往能很快找到善处理，安排妥当pen hall与coverauditorium,且在从句中作上此处描述一股性事实，故填is coveredthat或which40 to give.考查动词不定式。设空处作45.seen考查动词-ed形式。设空处所在32.B。根据下文中的they didn't have主题语境：人与社会艺术状语，表目的，故填t0gi部分作状语，且the unique space与or equipment that fit her可l,被LUS本文是说明文文章介绍了天津滨Fiber录取后，Everett遇到了个问题41.The。考查冠词。根据语境可知，设空之间是被动关系，故填5een海图书馆25.A根据本空前的I once felt that1参考答案die than go blind,but nowMlife has renewec1-5 DBCBA6-10 DBCDA综合能力测试(20)参考答案及部分解析,作者曾经觉得11-15 CBACA16-20 GDFEA了每个物种的动物特2125 BADCA26-30CBDA0Woods every day because he felt bette杯子，里而装满别点欢的食物，发现致说明作者现113L35DBACD决问题最快，均用时6秒就川：充满活力和乐趣者所到之处3rapidly37.which为知地说话仙成觉冬此，地的话能给惨，完成同样的用时38.the26,0据本段中叙述的作39.itself带来心理安慰因此，研究人员期待摆助的情节可知，作作者毛社时，发现自己叩开440.t0r41.getting42.killer43 dangerous5.理解其休信息。根据第要完成的任分是：打开杯盖1al so that45.to getShe tried to not get too emin the bes14.获收卫解主台要义。根据本段中的ble that becausc these27.828:据本句中的butelyshe could keep helpingexnlained to第节ay possible可，o0ti刘病人，out of the group化这样她就能做到iduals路说外意是One possible version:地帮助他们aren't necoriy比蹄个人主动提出Lost and Found推断。据第动物McAdamsWoodswhom 'my1题的方法，可为他系鞋帝，他就礼貌地拒绝April 21 when I was playingr知，Vo诙谐幽们29的you arether I's a black smartwatch慨打而言，本段重in front ofs on theShe解释实验结果者是盲人，他不知道自己面前立有wherthey根据最后段的watch15.A消防栓maches thisto care,和为220C根据本句中的waid1fv01h1314and find mcinand make文出them人，也关心的的数front door的内2,这说明他lass One得出来况明在解message on thns pageand I will contact you.的成长Li Hua理解章开篇介绍方面Wood是世和对第31根据本空前的also可知，那位司机为者的关爱，题语境：与自我学的兄弟也是盲One possible version文章指出大学生依本段主要叙述别人对作者的形助thartheWoods切价象因为课程太难，建32.ingredientshocolate chip cookies.会和对作者的结合本句中的waited和1hWoods故可推通讨介绍Woods的议教授们重新评经常警告学mront do知，那位司机tant and unigue.of his parents作者到前门人来缅这位可敬的护士，B16.Gname wast3g3 specia最能表达文章主旨，remember不要伟用作业辅导服务,G会：国然看不见那苍司机：但他最33.A。根据为容可知，作者是盲names and birth monthof who he2s.Whilemavh“纪念，缅怀说明他们不知道C篇做的34c22殊教aux导服line求的s说明她止作者跟汽to sharevith theM有生lineirsmenotHa-NAL-doecec年轻人提供”Q理醒。根据本段中划线词后的1到有些作根据本空前的the dispatcherluh-NAWL-do务能是因为懒惰或想35.D。class the origin of histo share five percent ofitswIthD项启说明和倒数第业学guided me to aca和本空后的secingAnd then Jem toldthd causes in the community生这样木2后提到很多you again可知，1位度员也帮助」name.以求助于这些作者，同时表示希望能再见到作者，进To lem's surprise,hislassmtes9段Cris所说的The success of the学业上有困难所very happ.to learn to say his nanTheySociety enablesus to keep our promise to服务D观点故选D项步体现了他对作者的友善。even praised himfor sharing thegive five percent ofuprofits to make aoe tru…适用，符合第三环境保护behind his nameemfeltproud to be abledifference可DarlingtonBuilding18本空前提到学生们求助于作业辅主题语境：人与自然to share a part of his identity with hisnewiety把他们利润的5%角于社区公盖导服，以回答作业中有挑战性的问水文是说明文外来入侵的野草对classmates.He was also gratefulforthe事业，这是他的所作的“承诺”pledge在题，F项指出做法背后的原因：他们环境和农业有很大危害，专业人士建议在sciencelessonthat helped himseethe没有获得他们需要的基本技能夏季来临前清除野草mportanceofeachuniquengredient,D。理解具体信息。根据第三段中的19.下句构果系36.rapidly。考查副词。设空处作状语including his ownimakingbeing used asan additional classroom for出学生课堂表现出色对每个name.grow和reproduce,表示“迅速地”，】somethinggreat.Asclass ended.Jemstudents to produce,of textiles可些纺织利，所以也许值得重新虑布该角副词，故填tapidly。smiled to himself,feeling more at ease and知，学生们在牧羊人小屋制作材料没有直接关系的作将37.which。考查关系代词设空处引导excited to continue his journey at hisnew这个小屋是课堂教学的延伸，为学解的限制性定语从句，补充说明名school生们专门提供人学空间学方法上insb.'s interest对某人有好Stinknet的野草，且在从句中作主语，部分解析10.A。理解观点、态度。根据第五段中处，有利于某人which阅读Beth所说的We were quite restrictedbefore,and teaching textiles didn't have20.上句指出仅仅谴责作业辅导38.th考查冠词。设空处特指第·段第一节服务及其用户是没有用空下提到的North Valley,故填the.篇its own space可知，助教Beth认头主题语境：人与社会社会服务们以前受到很大的限制没有用于教建议调查学生使用作业辅导服务的39.itself。考查代词。根据It replicatesays可4文是应用文。文章是则志愿者授制作纺本原因，并努力解决这些问题，由此推five thousand times every 13招募信多做纺织品，牧羊人小屋的设文为织品的空间断，本空提示作业辅导服务的使用反这种野草有很强的自我复制能力理解具体信息。根据第一段的内容可生开辟·个新的学领域映了深层次的问题，A项符合语境。空处应该用反身代词，故填itself知，这四个项目面向世界各地招募志愿者。11C。断。根据最后段中Chris所说语言运用40.fo行个。season后常接for示“做某事的季2B。理解具体信息。根据Habitat forHumanity部分中的Volunteers construct主题语境：人与社会人际沟通41.getting.考查动词-ing形式。recommhomes or repair older or damaged ones味着他们能够在未来继续为更多的社本文是记叙文。作者虽然失明了，却发doing sth..推荐做某事知，为Habitat for Humanity服务的志愿由此推断，该组织将现生活并不黑暗，因为到处都有人在帮助他42.killer老查名词。根据buying a b者要做房屋建造或维修方面的工作。继续做慈善事业2l.B。根据本空前的a world opened forof weed可知，设空处应该用名3.C。理解具体信息。根据Gulf Coast篇me.I was offeredallsorts offreeweed一起指“除草剂”，故填killer.Wildlife Rescue部分中的olunteers主题语境：人与自然自然生态services可知，作者通过Lighthouse43.dangerous。考查形容词。设空处must be at least i8 vears old and attend本文是说明文。研究发现，较少融入Guild申请到了各种免费服务，这让他中作表语，表示“危险的”，应该用training in order to take care 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W:Thanks.What about visiting the town?Could you give medinner?some advice?W:Just some things.It will be much quicker to cook this way.M:As for places to visit,do go and see the flower exhibition atWe can make most of the sweet desserts tomorrow night,the botanical garden.The exhibition is small but reallybecause they will be served cold anyway.We'll makegood.It gets very crowded on Sundays,so I suggest youeverything else on the day of the dinner.visit it on a quiet day,later in the week,but not onM:How do you want to serve the foods?I think we should doThursdays.It's not open to the public on Thursdays.the soup first,then steak afterwards.W:Got it.Thanks a lot.W:Don't forget about the salad.I usually put that out first andText 8then the soup and main course.W:Good afternoon.This is Capital Hotel in Canberra.HowM:Oh yes,let's do that.Also,don't forget we need to makecan I help you?food for ourselves too.Last time we forgot,and I was soM:Hi,I'd like to make a reservation for this upcominghungry after we served the party.weekend from Friday to Sunday.W:Yes,I remember.Even though there was extra food leftW:Sure.Do you need a room with one bed or two?Anover last time,I didn't eat most of the things we made.Iordinary single room for one night is 150 dollars.And acan't have hot food anymore and desserts are reallydouble one is 180 dollars.unhealthy.M:Well,my wife and I will be visiting the city,but a roomM:The amount of salt you put on your food probably isn'twith one bed would be just fine.good,either.W:OK.Would you care for a room with a balcony?You will haveW:I know,but it's just the way I like it.Anyway,I'm going toto pay 16 extra dollars per night for one with a balcony.gather some vegetables.Can you call the person who madeM:Yes,a single room with a balcony will suit our needs fine.the reservation and make sure we have the numbers right?Um,I notice on your website,you have a pool and anM:Sure,I'll do that right after I check the freezer to make sureexercise room.Are these available for all hotel guests?we have enough beef.W:Yes,of course.And the hotel stay also includes breakfast.Text 10We have an on-site restaurant for lunch and supper asLearning to play a musical instrument will not only givewell,but you will need to pay for what you order.you a cool hobby,but increase patience and focus as well.ItM:OK.Would you like my credit card information right now ors said that learning to play the piano makes you smartercan I take care of that at the reception desk?overall.It is possible because picking up the instrumentW:We can handle payment when you check in.requires strengths of character.It takes years to master.TheM:That's great.Thanks.ability to sit down,put everything else aside and learn deeplyText 9can easily be used in other areas of study.That is probablyW:Today we need to go over the checklist for the materials wewhy musicians do better on intelligence tests.But,whether orwill need.Tomorrow night we can begin some cooking.not learning music makes you smarter,it is obvious thatM:You want to start cooking some food the night before the playing an instrument has many positive side effects.You一英语·答126

23.(12分)为测定空气中氧气的含量，小亮同学在老师的指导下进行创新设计。止水夹红磷弹簧夹注射器中时活塞在20mL刻度处图1图2(1)小亮先按照课本进行实验，装置如图1：①红磷燃烧时，可观察到产生大量的红磷燃烧停止，冷却到室温后，打开止水夹，可观察到烧杯中的水进入集气瓶至刻度处。实验结论是②实验中不能用木炭代替红磷，原因是生成物为二氧化碳气体，瓶内基本不变，导致烧杯中的水几乎不回流，从而无法测定出空气中氧气的含量。③根据实验中观察到(填实验现象)说明氨气不能燃烧也不能支持燃烧；根据实验中观察到集气瓶中的水上升到约集气瓶容积的1/5后，不再继续上升，说明氨气(填“难”或“易”)溶于水。④请写出红磷燃烧的文字表达式为(2)在老师的指导下，小亮大胆创新设计实验，他选用容积为35mL的试管作反应容器，按预设的方案进行测定实验。装置如上图2，请分析并回答下列有关问题：①实验中，先夹紧弹簧夹，当红磷与氧气充分反应后，再移开酒精灯并打开弹簧夹，注射器活塞将从20mL刻度处慢慢前移，理论上活塞最终大约应停在mL的刻度处。②实验结束后，同学们发现最后测定结果偏小，可能的原因是(填一种)。24.（14分)根据如图装置，回答下列问题：(1)写出装置B和C中标号仪器名称：a(2)加热高锰酸钾制取氧气文字表达式为装置A可用于高锰酸钾制取氧气，其试管口应略向下倾斜的原因是，试管口放一团棉花的目的是(3)若用过氧化氢溶液制取氧气，为了控制反应的速率，则应选择的发生装置为(填标号)；收集氧气选择D装置的原因是25.(18分)某课外活动小组就催化剂对化学反应速率的影响进行了有关探究，已知二氧化锰可作为过氧化氢分解产生氧气的催化剂。同学在用过氧化氢溶液与二氧化锰制取氧气的过程中，发现反应的速率慢，产生的气泡少。为此，他们进行了如下探究：（如图一）0.2g氧化铜带火星带火屋的木条的木条过氧化过滤固烘干称量、重复实验②③氢溶液④体⑥⑦图一九年级化学试卷第5页（共6页）

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2.Which of the following are the principles of ecotourism?a.Minimize the damage and impact to the environment.b.Provide financial aid or other benefits for the local areac.Enable travelers to be educated by the area or its cultured.Do your duty for the tourism of those undisturbed areas.A.a,b,cB.a,b,dC.b,c,dD.a,c,d3.What is the writer's attitude towards ecotourism?A.Ambitious.B.Indifferent.C.Intolerant.D.FavourableⅢ.阅读下列短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。Passage 1(2019年全国I卷完形填空改编)Every year about40,000 people attempt to climbKilimanjaro,the highest mountain in Africa.They 1 with them lots of waste.The 2might damage the beauty of the place.The glaciers()are disappearing,changing the3 of Kilimanjaro.Hearing these stories,I'm 4 about the place-other destinations are described as“purer'”natural experiences.However,I soon 5 that much has changed since the days of disturbing reports of6 among tons of rubbish.I find a 7 mountain,with toilets at camps and along thepaths.The environmental challenges are 8 but the efforts made by the Tanzania NationalPark Authority seem to be 9.The best of a Kilimanjaro 10,in my opinion,isn't reaching the top.Mountains are11 as spiritual places by many cultures.This 12 is especially evident on Kilimanjaroas13 go through five ecosystems(生态系统)in the space of a few kilometers.At thebase is a rainforest.It ends abruptly at 3,000 meters,14 lands of low growing plants.Further up,the weather 15 -low clouds envelope the mountainsides,which are coveredwith thick grass.I 16 twelve shades of green from where I stand.Above 4,000 metersis the highland 17 gravel(),stones and rocks.18 you climb into an arctic-likezone with 19 snow and the glaciers that may soon disappear.Does Kilimanjaro 20 its reputation as a crowded mountain with lines of touristsruining the atmosphere of peace?I found the opposite to be true.1.A.keepB.mixC.connectD.bring2.A.storiesB.buildingsC.crowdsD.reporters3.A.positionB.ageC.faceD.name4.A.silentB.skepticalC.seriousD.crazy5.A.discoverB.argueC.decideD.advocate6.A.equipmentB.grassC.campsD.stones7.A.remoteB.quietC.allD.clean95

15,在面直角坐标系0中，若圆Cx++(+2=户(>1)上任意一点关于原点的对称点都不在圆C2:(x-2)2+(y-1)2=1上，则r的取值范围为16在三棱柱ABC-ABG中，已知各棱长都为2，侧面AMCC1底面ABC,且∠AMC-胥，则三棱柱ABC-ABC的侧面积为」四、解答题：本题共6小题，共70分解答应写出文字说明、证明过程或演算步骤17.(本小题满分10分)D在长方体ABCD-AB,CD中，已知AA1=2AB=2BC=4,O为AB,CD0的中心(1)求异面直线OB,AC,所成角a的余弦值：(2)求证：OB//面ACD1.·D18.(本小题满分12分)在△ABC中，设角A,B,C的对边长分别为a,b,C.(1)若点D是BC边上一点，且CD=1,BD=2,2b2+c2=9,求AD的长：2)若C=2B=T,且AB+AC=AB.AC,求△ABC的面积319.(本小题满分12分)已知圆M关于x轴对称，且与直线：x-2y+m=0相交于P、Q两个不同的点，过P、Q分别作直线1的垂线与x轴交于S(-2,0),R(3,0),且梯形PQRS的中位线长与面积分别为35,152(1)求m的值：(2)求圆M的标准方程.

第(6)问，通过碘氧化法滴定分析产品中S+的含量的计算，本题侧重方法的理解，找出数据之间的关系，难度不大。16题：(15分)参考答案：(1)增大焙烧时原料的接触面积，加快反应速率等。合理即可(2分)(2)S02、C02(2分)答对1个得1分(3)Na2MoO4+HO+2HNO3=HMoO4HO↓+2NaNO3(2分)(4)增大NH4浓度，有利于NH4VO3尽可能析出完全(2分)(⑤)pH过低，VO3转化为VO2的程度较大；pH过高，NH4转化为NHHO的程度较大，均使沉钒率降低(2分)52×96(6)8(2分)3×1010(3分)【详解分析】第(1)问，为工艺流程图的常考题型，原料的预处理。答案为：增大焙烧时原料的接触面积，加快反应速率等。第(2)问，根据流程转化可知MoS、NS要在空气中氧化，纯碱参与反应可知，气体产物成分主要为S02、C02。第(3)问，考查方程式的书写，答案为Na2MoO4+HO+2HNO3=HMoO4H,O+2NaNO3第(4)问，沉钒的意图是把NH4VO3沉淀出来，进行分离。因此利用衡移动原理，增大NH4+浓度，使NH4VO3(s)=NH4*(aq)+VO3衡逆向移动，有利于NH4VO3尽可能析出完全。第（⑤）问，图像分析，结合已知信总可知：pH过低，VO3转化为VO2的程度较大；pH过高，NH4转化为NHHO的程度较大，均使沉钒率降低。8×二+1第(6)问，由图可知钼晶胞为体心立方最密堆积，该晶胞含有个8=2个钼原子，且晶胞中体对角线上的3个原子紧密相邻，已知钼的密度为Pgcm3,阿伏加德罗常数为NA,设钼原子半径为pm,可以3x2x52求出钼原子的半径4“VpNA×10°pm17题：(14分)参考答案1@@5*+HN*+3H2分》2②分散度越品，总表面积截大，吸附的反应物截多2分(2)4NH3(g+6NO(g)=5N2(g)+6H20(g)△H=(3b-a)kJmol1(2分)(3)小于(2分)降低温度，k正减小的幅度较小，k递减小的幅度较大，说明降低温度，衡正向移动，该反应为放热反应(2分)(4)

V.微写作。(一)根据下面提示，写一篇关于中国汉字文化的小短文。1.(新人教版必修一Uit5P62改编)中国以其生动的古代文明而闻名，这种文明一直延续到现代。(be known for;vivid)2.汉字也成为连接中国现在和过去的重要手段。(Chinese characters;connect with)3一些古代的符号仍然可以在今天的汉字中看到。(symbol)4.现代人可以欣赏古代中国人书写的经典作品。（classic)(二)根据汉语提示补全短文。(新人教版选择性必修三Unit5P58改编)Poetry probably had its origins in(传统民间音乐)tens of thousands of years ago.In that era,therewere no TVs or films,and writing had not been invented,so people would sit around the fireat night and sing songs(来自娱自乐).These songsreflected(来自人们日常生活的主题)，such as huntinganimals or sowing crops.Since nothing was written down,over the years different versionsof these songs developed,and each area would have its own respective rhythm.(除此之外)，people would recite stories of past heroes.As thesestories were often quite long,they often had rhyme and rhythm to help people rememberthem more easily.While in the beginning such songs and stories had a very simple format,over time they became(更复杂更完善)(三)将下面的小语段翻译成英语。1.(2021年新高考Ⅱ卷七选五改编)如果你决定要读完整本书，决定一次能读多少。这取决于你在读的书的类型。一本以故事形式记载事实的历史书比一本涉及科学主题的书更容易阅读。(at a time;contain;in story form)2.(2020年全国Ⅱ卷阅读理解D篇改编)随着年龄的增长，图书馆在我的生活中有了新的位置和意义。书籍是我娱乐的主要来源。对我来说，去当地的图书馆是件大事，在那里我可以挑选书籍阅读。(as;the main source of;entertainment)44