含有的肽键能在酸性条件下或碱性条件下发生水解反应生成盐，B项正确；该片段结构中①②为碱基通过氢键作用结合成碱基对，则DNA分子可通过氢键①②形成双螺旋结构，C项正确；该片段结构中碳碳双键能与溴水发生加成反应从而使溶液褪色，与酸性高锰酸钾溶液发生氧化反应从而使溶液褪色，D项正确。8.C【解题分析】蔗糖的分子结构中都含有羟基，且至少有一个连接醇羟基的碳原子的相邻碳原子上有氢原子，能发生消去反应，A项正确：天然油脂、非天然油脂中都含有酯基，都能发生水解反应，蔗糖在稀硫酸作用下能水解产生葡萄糖和果糖，B项正确；皂化反应是仅限于油脂与氢氧化钠（或氢氧化钾）溶液混合，得到高级脂肪酸的钠盐（或高级脂肪酸的钾盐）和甘油的反应，非天然油脂水解产物中没有甘油，不属于皂化反应，C项错误；植物油、非天然油脂中都含有碳碳双键，都可以与H2发生加成反应，D项正确。9.D【解题分析】(C6H1oO5)m~nC6H12O6~nCu2O162n144nm1.44g162m144nn1.44g解得m=1.62g。则淀粉的水解率为·g。3×100%=18%。10.D【解题分析】色氨酸分子中含有的官能团为一COOH、一NH2,其中一COOH有酸性，一NH2CH,CHCOO有碱性，故二者能反应生成》N,A项正确；色氨酸分子较大，含有苯环，溶解人一H度较小，色氨酸盐有阴、阳离子，溶解度较大，根据化学衡移动原理，通过调节溶液的H可使色氨酸盐向色氨酸转化，当色氨酸过饱和时便形成晶体析出，B项正确；色氨酸属于氨基酸，因此它具有氨基酸的性质，能发生脱水缩合反应，C项正确；褪黑素与色氨酸分子结构相差较大，如褪黑素的苯环上有一OCH3,色氨酸没有，褪黑素五元环上的侧链(一CH2CH2N一C一CH3)含有肽键，色氨酸五元环上的侧链（一CH2 CHCOOH)含氨基H ONH2和羧基，故色氨酸有两性，褪黑素没有两性，D项错误。11.BC【解题分析】巾叶蝉散的分子结构可知叶蝉散中不含有一(COOH,A项错误；邻异丙基苯酚分子中含有7种不同化学环境的氢原子，侧邻异丙基苯酚的核磁共振氢谱有7组峰，B项正确；邻异丙基苯酚能与FeCl3溶液发生显色反应，而叶蝉散不能，因此可用FeCl溶液检验反应是否完全，C项正确；同系物必须是同类物质，邻异丙基苯酚属于酚，CH2 OH·61【23·G3DY(新高考)·化学·参考答案一R一必考一HEB】

不兼14.阅读材料，完成下列要求。(16分)绿色办奥，让北京冬奥会变得“绿意盎然"。北京冬奥会和冬残奥会筹办6年多来，绿色办奥理念落实到筹办工作全过程，形成了一批可持续成果。如首次全部场馆使用100%绿色电能、首次采用环保的二氧化碳制冰技术、首次实现场馆热能再利…打造生态赛区，守护赛区的青山绿水；严格实施低碳管理，建设低碳场馆，全面使用低碳能源，构建低碳交通体，系，积极拓展碳补偿渠道，全面实现碳中和，彰显出北京冬奥会“绿色办奥”的生动实践有人认为：只要坚持绿色办奥理念，就能形成一批可持续发展成果。请运用唯物论有关知识对此观点加以评析。景则一音只，中面数个四的出的明心前本代其，农盟小●，量小共道大本密的合工寒国公送西识不，张赛个外国中T出也月人改，半合争福升阳园中，阳头中15.阅读材料，完成下列要求。(20分)经历40余年的高速发展之后，驰名中外的“广东四小虎”之一一佛山顺德，也面临着发展的“天花板”。因“村村点火，户户冒烟”而形成的一片片村级工业园如今成了“散乱污破”的代名词，发展乏力、结构欠优、环境不佳、安全隐患突出成为顺德推进高质量发展的头封号短板。形势所迫，村级工业园改造势在必行，确定村级工业园改造为顺德区的头号工程。针对不同改造项目的不同要求，灵活用好政策组合拳，因地制宜探索出政府挂账收储、一二级联动改造、国有集体混合开发、直接征收开发、生态复垦复绿、政府统租统管、企业长租自管、企业自主改造和“改造权十土地使用权”公开出让9种改造模式。截至2020年12月31日，累计完成改造83310亩，累计关停、整改落后风险企业12799家。2021年，村级工业园将在总体上退出顺德的历史舞台。结合材料，运用矛盾分析法的知识，探索村级工业园总体上退出顺德历史舞台的动因。线量圆士的单饭使哪高果，面止量义试而式只⊙①D西作5计总正区时央中数向5计意增会央中，的则头合来中数用的--------------------【考点滚动卷·思想政治（十）第4页（共4页）XXL】

(3)原子总数相同、价电子总数相同的分子具有相似的化学键特征。工业上常用羰基镍N(CO)制备高纯镍，羰基镍晶体中σ键和r键数目之比为(4)碳元素在有机合成中有着广泛的意义。我国药学家屠呦呦从植物黄花蒿叶中成功提取出青蒿素，此后又对青蒿素进行了分子结构修饰，合成出药效更佳的双氢青蒿素、青蒿琥酯钠盐等（如图所示）。青满米双氨青蕉素青蒿就事钠盐青蒿素中C的杂化轨道类型为;青蒿琥酯钠盐中所含元素的电负性由大到小的顺序为(用元素符号表示)：青蒿琥酯钠盐比双氢青蒿素水溶性强的原因是(5)金属铬的晶胞（体心立方结构）如图所示，铬原子的半径为am,该晶胞的密度为gcm3(N为阿伏加德罗常数的值，列出表达式)。19.(10分)某研究小组以乙炔为主要原料，采用以下路线合成药物M和高聚物N:ga。a。B8回=国一定条件浓HS0,4 C.H,OHECH旅HS0LCHCHOCOOH△⊙M高三化学试卷第9页共10页

more本报采编中心(听力材料及参考答案见下期第4版；部分解析见《教师用报参考》第4期)KEY CORNER上期第1版练题参考答案3.blocked4.understood7.description8.arrangement2.The buffet consists of severaldifferentII construction2.pollutionIII.1.on 2.to3.with4.to 5.to9.enjoyable10.roughlyBritish dishes3.announcement4.analysisIV.1.unwilling2.collection11.delighted3.No one could ever take the place of RowanAtkinson,whose performance is impressive.5.scientific6.painter3.attraction4.possibilityV.1.To his credit,Jack never told anyone exactly4.She outlined the case,being careful not toII.1.questioned2.stuck5.furnished6.conveniencewhat had happenedleave anything out.m tm .m。高三英语上学期restaurants.It'sgot a really friendlyM:That theme sounds interesting.Could you tell31-35 ADACB36-40 EDCBF41-45 BACCD期中综合能力评估试题（二atmosphere,but it's not at all romantic.me more?46-50 BDACD51-55ACBAD56-60 BADCB听力材料及参考答案suppose it was disappointing in that respect.W:Of course.I came across a fascinating article.It61.seems62.effectively63.to knowbut what they served was 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山西新目标第74期参考答案W:No,I was in the art museum.参考答案rubbish and cleaning the kitchen table,we are on the第1一3版Q:Where was the girl yesterday afternoon?、1-5 BACBAway to being independent.What's more,we can doUnits3一5综合能力评估试题10.M:Could you pass me the salt,Amy?、6-10 CBACBsome volunteer work.For example,we can clean up听力材料及参考答案W:Sure,Dad.Wait a minute三、11-15 BABACthe city park or work in an old people's home.All in听力材料Q:What is the man doing probably?四、l6.talented17.two/218.pressureall,let's make full use of our free time on weekends一、情景反应本题共有5个小题，每小题你将听到三、语篇理解本题你将听到·篇短文。请你根据19.learn20.oftenand try to make our weekends more meaningful!·组对话。请你从每小题所给的A、B、C三幅图片短文内容和所提出的5个问题，从每小题所给的五、21-25 DBGCAThat's all.Thanks for listening.中，选出与你所听到的信息相关联的·项，并将其A、B、C三个选项中，选山·个最佳选项，并将其字六、26-29CBCA30-33BCAC第4版字母标号填入题前括号内。每小题读两遍。母标号填入题前括号内，短文读两遍。七、34-38 CACCB39-43 ACBAB44-48 AFCBE完形填空1.W:Ted,what are you going to do?My name is Tina.My father is a doctor.He49.center 50.Luckily 51.email1-4 CBAC 5-8 CABAM:I'm going to do the dishesworks in a hospital.My mother is a reporter.She52.everyone/everybody 53.successfu阅读理解2.W:Can I use your radio?works at a radio station.It's Sunday today and both54.Because the global population hit 8 billion onA)1-5 BBCCAM:Sorry,Tony borrowed it yesterday.But hemy parents need to work.They went to work at 7:30the day when she was born.B)1.reading 2.sad/upset 3.writer 4.aboutdidn't return it to mein the morning when I was sleeping.They prepared55.About 11 years.5.carefully3.W:When will the sports competition start?breakfast for me before they left.It was my favorite56.(1)November 15 (2)slowing downM:It will start at 8:40 in the morning.chicken sandwich.After breakfast at 8:30,I started(3)development (4)food4.M:What was the weather like last weekend?to sweep the floor in the living room.Then I made(5)work hard togetherW:It rained heavily for two daysthe bed and washed my clothes.After finishing all of57.He thinks it's exciting and worrying5.W:What's Peter doing?the housework,it was 11:30 a.m.I cooked tomato58.0n0 ctober12,1990.M:He is in the kitchen helping his dad.noodles for lunch.When my parents came back at59.I think it's good.Because there will be more二、对话理解本题共有5个小题，每小题你将听到12:10,they were surprised to see the clean room andresources for everyone in our country./组对话和一个问题。请你从每小题所给的A、Bthe lunch.八、60.for61.about62.on63.and64.AfteC三个选项中，选出一个最佳选项，并将其字母标四、听力填空本题你将听到一篇短文。请你根据65.did 66.are 67.them 68.to 69.from号填入题前括号内。每小题读两遍。所听内容，完成下而的表格，并将获取的信息填到70.letters 71.served 72.before 73.Although6.M:I want to forget my pressure and relax相应的位置上“每空一词。短文读两遍。74.to provide/providing 75.villagers'W:Me,too.Why don't we go camping onWhat do you like to do when you have stress?76.better 77.recently 78.tries 79.themSunday?Let me tell you about the after-school activities of九，One possible version:Q:When does the girl want to go camping?my friends.Becky is talented in sports.She likes toHello,everyone!7.W:You look upset.What's wrong?play tennis to forget stress.She plays it with herThanks to the "double reduction"policy.weM:I lost my notebook in the library.It's afather for at least two hours every week.Molly likesstudents have more free time on weekends.But howbirthday gift.to watch TV when she is under pressure.She likes tocan we make our weekends more meaningful？了'dQ:What did the boy lose?watch a talk show every Friday.She thinks the showlike to share my ideas with you.8.M:Could I go out to play,Mom?is enjoyable.She can learn some jokes from it.LarryFirstly,we can take some exercise,such asW:Sure,but you need to have lunch firstlikes to go to quiet and beautiful places.So he oftenrunning,swimming and playing ball games.They'reQ:What does the boy need to do first?goes mountain climbing on vacation with his family.all good for our health.Secondly,we could help our9.M:Were you at home when I called you yesterdayHe thinks mountain climbing has its risks but it canparents with some housework.Although we may justafternoon?also be relaxing.do some simple housework like taking out the

47.D根据下文.in the classroom,waiting for my mother to pick me up.可知作者放学后仍然在教室里，等待妈妈来接她。故选remained。48.C根据前半句Miss Pratt and a fellow teacher kept me company.”可知Miss Pratt和另一位老师边陪作者边聊天”。故选chatting。49.D根据下一句“Suddenly,approaching the door..”可知“作者正要离开”。故选goodbye。say goodbye to sb“向某人告别”。50.A根据上文Suddenly,approaching the door,.I happened to hear,“She really is polite and cute.”My teacher responded,可知my teacher是对另一位老师的话表示肯定。故选Definitely.51.B根据下一句A delicious warmth surrounded me with a new sense of awareness..可知“老师们对作者的表扬的话语吸引了作者，让她内心有一种触动，一阵暖流包围着她”。故选grabbed。grab“引人注意，吸引”。52.A根据下一段，第二句About one week later,.Miss Pratt announced that she was proud of myprogress.可知“老师的话鼓舞了作者，让她下定决心努力学，从而取得进步”。故选inspired。53.A根据第二段提到的信息Meanwhile,I didn't put the effort required,which43 my teacher.”以及后一句“About one week later,Miss Pratt announced that she was proud of my progress.”可知“作者下定决心好好学，改变自己”。故选study。54.B根据前一句“About one week later,Miss Pratt announced that she was proud of my progress.The class smiled and'”可知“同学们对作者的进步也很认可，并鼓掌祝贺”。故选clapped:55.C根据全文的描述，老师对作者的夸奖和认可，让她重新认识自己，完善自己。老师的一言一行都可能会对学生产生巨大的影响。故选difference。make a difference“有作用，有影响”。第二节语篇填空（共10小题每小题1.5分，满分15分）【主题语境】人与社会【语篇解读】本文主要介绍八段锦。56.regarded考查非谓语。regard和exercise之间为逻辑上的动宾关系，应用过去分词做后置定语。57.hugely考查副词。用副词修饰形容词，“hugely”在这里表程度。58.be found考查动词的语态。find和主语之间是被动关系，应用被动语态。59.todo考查非谓语。“teach sb.to do sth.表“教某人做.”。60.views考查名词。表示大约“1千万次的观看”，故用名词复数。6l.to考察介词。根据搭配“attach great importance to”表示“认为..很重要”。62.which考查非限制定语从句。根据句子结构可知，空白处所在句子为非限定性定语从句，指代前面提到的这件事，且在从句中作主语，应用关系代词which。63.a考察冠词。根据搭配“have a history of..”表示“有.年的历史”。64.suitable/suited考察形容词。根据句子结构可知，应用形容词，“be suitable/suited for sb.”表“适合某人”65.Combining考察非谓语。分析句子结构可知，空处应用非谓语动词形式，combine和主语Baduanjin之间为逻辑上的主谓关系，应用动词-ing形式，做状语。7

第13期高一英语上学期阶段检测（三）参考答案及部分解析参考答案1-5 ABCBC6-10 BAACB11-15 AABBC16-20 AABCC21-25 ADBDC26-30 BAABC31-35 CDDAC36-40 CBAEG41-45 DACBA46-50 DCABD51-55 BCADB56.amazing 57.to enjoy58.who /that 59.his60.over of61.importance62.producing 63.ways64.a65.certainly写作第一节One possible version:Dear teachers and campers,As the president of the Student Council,I am honored to address you at the closing ceremony of our "2023 YouthSummer Camp.”During this camp,we have participated in a wide range of activities,from team-building challenges to culturalexchanges.I will never forget the Drama Night,during which we enjoyed a wonderful Beijing Operaperformance.I would like to express my thankfulness to the organizing team and volunteers.As we say goodbye,let's carry thespirit of unity and friendship into our future efforts.Thank you all for making this summer camp unforgettable!第二节One possible version:Late into the night,we came together in Sarah's living room.The room was filled with creativity and love.Sarahworked on the design,while Mark and I worked together to create interesting messages to attract our audience.Asthe hours passed,we shared stories,laughed,and supported each other through the creative work.The late-nighttiredness was outweighed by the friendship we felt as a team.joined by our shared goals of making a differenceand helping Jacob.The following day,when Jacob returned to our team,he was surprised at the progress we had made in his absence.Jacob's eyes welled up with emotion as he realized how much we had done for him.With renewed energy,wecontinued working together,putting the finishing touches on our campaign.On the day of the event,our teamstood side by side,enjoying the fruits of our great efforts.The fundraising went beyond our expectations,allowingus to make a great difference to the cause we cared about deeply.Looking back on our journey,we realized thatthe strength of a team lies not only in individual ability but also in the readiness to support and help one another.部分解析阅读第一节A篇主题语境：人与自我一一生活本文是应用文。文章介绍了四个公园。2l.A。理解具体信息。根据Namba Parks,.Osaka,Japan部分中的Namba Parks shopping mall以及The

The journey opened his eyes to the needs of thoseThe vendor stood in front of the supermarket forwho are poor and sick.Watsi is a digitally health-10 hours a few days a week.He had a large familyfocused nonprofit.It offers real-time tracking ofto support.I felt pity for him ..The magazine二部分where donated money goes,from basic medical第二部always had interesting and meaningful articles andservices to surgeries(外科手术).only cost a couple of euros-not exactly a great dealPencils of Promiseof money for most people.Although I didPencils of Promise uses social media to reach outunderstand people are free to do with their moneyas they please,still,it made me sad that most阅读to possible donors.It encourages their benefactors(捐助人)to connect with others to increase givingpeople greeted him but could not spare a littleand help build schools,provide supplies and train读change to buy his magazine.I bought a copy of his magazine and told him toteachers in poor and undereducated countries,buy himself a cup of coffee with the rest of theincluding Ghana,Guatemala,Laos,and Nigeria.change I gave him.第All money donated online goes directly to第I also promised him an old bicycle as well whichprograms to educate more young people.was just basically lying around.It might be perfectWater is Lifefor his wife or daughter.He appreciated (that部分Water is Life aims to provide solutions invery much.villages and communities that are in great needI also bought some chocolate and birthdayof clean drinking water.Opportunities to travelflowers for my lovely 80-year-old neighbor andto countries and help build facilities(设施)totreat water are available.It also tries to educategave the flower shop owner a tip(小费).Smileswere all round.I got a lovely card from mypeople about the dangers of unclean water,读neighbor.He was very excited to get his birthdayencouraging them to protect water.flowers.g(D)21.Who might be most interested in(A)24.What does the underlined word "dejected"第volunteering through Volunteer Match?第probably mean in the first paragraph?A.Those who first cooperate with charity.A.Disappointed.B.Hopeful.B.Those who like to make things by hand.C.Confused.D.Excited.C.Those who need to track their donated money.(C)25.What can we learn about the magazines the分D.Those who want to take advantage of their分vendor sold?skills.①They were expensive..(C)22.Which of the following puts all of its time and2They were not selling well.读funds into education?3They were worth readingA.Volunteer Match.读B.Watsi.4They were published monthly.C.Pencils of Promise.D.Water is Life.A.①②③B.①②④厚C.②③④D.①③④第第(C)26.What did the author lead the magazine vendor(A)23.What is the purpose of building facilitiesto expect?to treat water?A.MoneyB.Coffee.努A.To provide clean drinking water.努C.A bicycle.D.Flowers(A)27.Which of the following would be the best titleB.To encourage people to save water.for the text?C.To show the dangers of dirty water.A.Spreading happiness through acts of kindnessD.To teach people to use waterB.Connecting hearts through community servicescientifically读C.Bringing joy to others through volunteer workD.Making a difference by supporting the单homeless⑧Bc第I spent some quality time chatting to the friendly第In 1983,Ski Rixen USA became the first water skivendor(小贩)who sold copies of a magazine whichcable park in the United States.Lying in Deerfieldsupported the homeless.I had known this vendorBeach,Florida,the park offers riders a chance to分for a few years.Rain or shine,he always had a分kneeboard,water ski,and more.Ski Rixen USA haslovely smile.He was a kind and good person.welcomed over 1.5 million visitors.The park wasYesterday he looked a bit dejected as he still hadthe idea of engineer Bruno Rixen.Born in 1931 in读not sold all the magazines of the month.He pointed读Germany,Rixen grew unhappy with the sport ofto a large pile (of magazines.And the nextwater skiing,which required being pulled by amonth was around the corner.speedboat.

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1、炎德英才大联考湖南师大附中2024届高三月考试卷(七)地理答案

【答案】20.A21.C22.D【解析】【20题详解】来自极地的气团为冷气团，来自太洋与墨西哥湾的气团为暖气团，根据题目信息可知图中形成三个锋，在干线两侧为干湿两种气团，结合图中数据，干线西侧为干气

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ln(n+1).…12分20.【解题分析】(1)证明：取CD的中点G,连接EG,FG因为F,G分别是棱PC,CD的中点，所以FG∥PD,又FG中面PAD,PDC面PAD,所以FG∥面PAD.因为

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on the table.A full day of openings and presentations,of smiling and nodding and flowers.Shaking her

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1、炎德 英才大联考湖南师大附中2024届高三月考试卷(一)生物答案

2023学年普通高等学校全国统一模拟招生考试新未来12月高一联考·生物学参考答案、提示及评分细则1,D光

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③中国古典诗词会灭亡吗(2分)21.第二课：伏脱冷用他的行为和赤裸裸的语言向拉斯蒂涅证明了普通人之间奉行的利己拜金原则。他教会了拉斯蒂涅残酷的攫取金钱的手段。第三课：高老头用他的遭遇和惨死，向拉斯蒂涅

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2023-12-17 10:46:09

50

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2023-12-18 10:02:08

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1、2

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B李不光想效法卡庄子刺虎、一

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5.使用GoldWave软件录制并编辑某音频文件部分界面如图所示。盘品动楹鼎蟲器盈盘00:00:0000:

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B李不光想效法卡庄子刺虎、一次性消除所有的对毛.所以他决定先在LL/医忌。圳练士兵，根据天下的形势，看到好的时机就

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(B)44.What do we know about Binx?第二节A.She is a white cat.根据短文B.She lives with Lane.内容，从短文后的C.She is six years old.阅选项中选D.She has a cat friend.读出能填入AThere are Siberian(D)45.Which is the right order(顺序)？空白处的me of hem can becan see th最佳选项。Park.you will sce some lovelya.Binx jumps the two coyotes.(狐狸解选项中有are very welcome in Harbin)too.They are from the Greaterb.The two coyotes run to Oakley.两项为多Khic.Oakley runs back to the house余项。5)Note:d.Oakley goes to the bathroom.e Khingan Mountains大3兴安的ne heretA.a-c-b-dB.b-a-c-d度C.c-b-d-aD.d-b-a-cG.There are many kinds of animals in Harbi(A)46.What does the underlined word“brave'”根据所给汉语意思，用单词或短语完成下列英文句子。mean(意思是)in Chinese?56.李叔叔对我们大家都很友好。A.勇敢的B.耐心的Uncle Lee is friendly to us all.57.我相信你的梦想不久就会实现。C.自豪的D.生气的完(C )47.What can we learn from the reading?I believe your dream can come trues00n.句58.这里的许多村民擅长制作风筝。A.Oakley loses one of her legs.子Many villagershere are good at making kites.B.Lane drives the two coyotes away.59.大熊猫萌二今天看起来有点滑稽。C.Oakley meets the two coyotes at night.The panda Meng Er looks kind offunny today.D.Binx goes to the animal hospital with60.晚饭后劳拉总是帮助妈妈清洗餐具。Oakley.Laura always helps her mom do the dishes after dimnerg用方框中所给单词的适当形式填空，使短文完整正确。（每个C★★What do you usually do on weekends?For some单词限用一次。每空限填一个单词。)children from Ruanjia Village of Qufu,Shandong,theythey bring wish walk shy play eat star quickly relaxalways come to the Confucius lecture hall(孔子讲堂)in their village短Look at the photo!In it.Shinya and Shion areOver 30 students take lessons about Chinese cultre (at the(6l)walking with two alpacas(羊驼).Thelecture hall.They can learn a lot of things there.They learn how to write.names of the alpacas are Akane and Satsuki.Theysing and make beautiful and useful artworks.The teachers also read ancienttimes treated(对待)their family and frien填空are from South America and they're five years old.Usually,alpacas are very (62)shyanimals.When people get close to them,they alwaysknow what to do and not to do when meeting people.run away (63)quickly.But the two alpacas are different.They are notThe lessons are welcome.Hu Wenzhe,a 10-year-old student,firstafraid of people.studied in the Confucius lecture hall over three years ago )."I love thelessons here,"she says.Every morning,Shinya and Shion take the two alpacas to a small parkIn Shandong.Ruanjia Village is not the only place with a ConfuciusThe two like walking and (64)eatingin the park.Then they go backlecture hall.Shandong now has over 22,000 Confucius lecture halls into(65)_their home at a pet zoo-Alpaca Zoo.After that,they startgvillages,with over 120,000 cultural activities every year.Most of theto welcome visitors(游客).villagers are happy to join in these activities.(C)48.The writer leads in the topic(导入话题)bythey bring wish walk shy play eat star quickly relaxNow the two alpacas are big (66)stars at the pet zoo.A lot ofA.playing a gameB.telling a storypeople go to see them.It takes the visitors 1,000 yen to (67)playC.asking a questionD.using numberswith them for thirty minutes."It is (68)relaxing to be with the(A)49.The writer talks about Hu Wenzhe to let usalpacas.They can always(69)bringme much fun.My sister nowknow the childrenin the lecture hall(70)wishes to keep an alpaca as a pet and so do I,"says a visitor.A.like taking lessonsB.must study for three yearsC.must be 10 years old to studygD.can learn about Chinese cultureg阅读下面材料，根据材料内容，完成下列各题Look at the photo!The man in a black jacketand a white hat is Ma Yonghua.What is he doing?He is busy boiling dumplings(煮饺子).Those peoplearound him are from the earthquake area(震☒)in(D)50.What is the best title(标题)for theGansu.The dumplings are for them.passage?任务Ma is a 36-year-old man from Lanzhou,GansuA.Ruanjia Village in ShandongHe runs a restaurant(餐斤)in Lanzhou.Ma is a manwith a heart of gold,and he loves to help others.B.Rules in Confucius lecture hallsMa says,"Because of the terrible earthquake,people here have no foodC.Old villagers in Ruanjia Village读to eat.I am so worried about that.So I drive the food here with my friends.Everyone can come to eat dumplings!"D.Shandong's Confucius lecture hallsMa keeps boiling dumplings for people many hours a day,and a lot ofpeople come to eat his dumplings."Ma's dumplings are delicious.and Mais also kind.What he does moves us a lot.We will always remember him,"厚one man from the earthquake area says.6

1、辽宁省2023~2024学年度下学期高二3月联考试卷(242590D)地理试题

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高二英语周报 2024-04-01 15:50:21

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过“太空旅行”的太空种子繁有出来的蔬莱，如太空番茄、太空黄瓜等，目前已成熟即将采树。太空育种也叫空间诱变有种，是我国主要的航天任务之一。它是将农作物种子或试管种苗通过航天器送到太空，利用太空特殊的、地

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文体专练1议论文姓名：得分：限时：30分钟总分：33分1.请阅读下面的文字，回答问题。(20分)文章，重“显绩”不重“潜绩”，重包装不重实踏实做人，潜心干事效，是不可能干出成绩、赢得民心的。当年，①前

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2024年河南省普通高中招生考试模拟试卷数学(压轴二)参考答案1.D2.C3.C4.D5.C在Rt△AGM中，∠AMG=53°，▣2李解析部分6.A7.A8.B9.D10.AAG..GM=13号14.2ntan 53tan53°111.-2m12.23.ME=5,∴.GE-GM=5,15.√6或4√6即x=5,(7分)Gp.5316.解：(1)原式=2-2-1=-1；(5分)tan53°解得x≈20.15，2x-y=2,①图2(2)由（①+②）÷3，得x-y=.AB≈20.15+3=23.15≈23.2（米）.x-2y=4,②答：山峰AB的高度约为23.2米.(9分)2③，由①-③，得x=0,把x=0代入③，得y=-2,20.解：(1)设购买足球的单价为x元，∴原方程组的解为x=0,y=-2.(5分)则购买篮球的单价为(x+30)元，17.解：(1)0.2；0.3；(2分)由题意得2000=3200,(3分)x+30(2)60:120°；(6分)解得x=50,(3)1200x15+8=460(人).经检验，x=50是原方程的解，且符合题意，60答：估计该校学生观看视频课时长超过1.5h的人.∴.x+30=80数大约有460人.(9分)答：购买篮球的单价为80元，购买足球的单价为18解：()：反比例函数y一50元；(5分)(x<0)的图象(2)设可购买m个篮球.则购买(75一m)个足球，经过点A(一3,3)，由题得m≥2(75-m),解得m≥50，(6分)3=与有=-9，设总费用为W元，可得W=80m+50(75-m)=30m+3750,(8分)“反比例函数的解析式为y=-9(Gx<0):(4分).30>0,(2)如图所示，点D即为所求；(6分)（此问画∴.当m=50时，W有最小值，30×50+3750=法不唯一)5250(元)，75-50=25(个).答：购买篮球50个、足球25个费用最少，最少费用为5250元.(9分)21.解：(1)连接AD,连接BC,由圆的基本性(3)由(2)知：∠ACB=∠BDO,质得∠B=∠D,又∠ACB+∠A=90°，,∠P=∠P,LB=LD∠BDO+∠DBO=90°，∴.△APD△CPB,.∠A=LDBO.(9分)∴.PA:PC=PD:PB19.延长EM交AB于点G,由题意得：EG⊥AB,∴.PAPB=PC·PD:(5分)（解法不唯一）设AG=xm,(2),PD=24,PA=8,AB=10,在Rt△AGE中，∠AEG=45°，,∴.PB=18.∴.EG=AG=xm,(4分)由(1)得PAPB=PCPD,数学试卷(压轴二)参考答案第1页共2页