期中自测卷
2024-2025学年统编版(部编版)初二道德与法治上册期中质量自测试卷及答案
2024-2025学年统编版(部编版)初二道德与法治上册期中质量自测试卷班级：________________ 学号：________________ 姓名：______________一、单选题（每题3分）1.【题目】下列关于我国宪法的说法，正确的是（）A. 宪法规定了公民的全部权利和义务B. 宪法是一切法律的总和C. 宪法是治国安邦的总章程D. 宪法是普通法律的具体化【答案】 C【解析】A选项错误，宪法规定的是公民的基本权利和义务；B选项错误，宪法是其他法律的立法基础，但宪法不是其他法律的总和；C选项正确，宪法是国家的根本法，是治国安邦的总章程；D选项错误，普通法律是宪法的具体化。
2.【题目】下列行为中，属于公民依法行使监督权的是（）A. 小王就学校门口交通拥堵问题向有关部门反映B. 小李因买到过期食品与商家发生争执C. 小张将捡到的他人手机据为己有D. 小赵对老师说谎以掩盖自己的错误【答案】 A【解析】A选项正确，小王就学校门口交通拥堵问题向有关部门反映，这是依法行使监督权的表现；B选项错误，小李因买到过期食品与商家发生争执，这是维护消费者权益的行为，但不属于监督权；C选项错误，小张将捡到的他人手机据为己有，这是侵犯他人财产权的行为；D选项错误，小赵对老师说谎以掩盖自己的错误，这是不诚实的行为。
3.【题目】下列选项中，能体现公民具有民主意识的是（）A. 小明认为民主选举与自己无关B. 小丽积极参加学校组织的模拟人大活动C. 小刚认为民主监督是成年人的事D. 小强认为民主决策是领导的事【答案】 B【解析】A选项错误，小明认为民主选举与自己无关，这是缺乏民主意识的表现；B选项正确，小丽积极参加学校组织的模拟人大活动，这是积极参与民主生活，具有民主意识的表现；C选项错误，小刚认为民主监督是成年人的事，这是错误的观念，民主监督是每个人的权利；D选项错误，小强认为民主决策是领导的事，这是错误的观念，民主决策需要公民广泛参与。
2024-2025学年安徽省小学三年级上学期期中英语试卷及答案指导
2024-2025学年安徽省英语小学三年级上学期期中自测试卷及答案指导一、听力部分（本大题有12小题，每小题2分，共24分）1、Listen to the dialogue and choose the correct answer.A. What’s your name?B. How old are you?C. Where are you from?D. What’s your favorite color?Answer: AExplanation: The question asks for the listener’s name, and the correct response is asking for the name, which is “What’s your name?”2、Listen to the short story and answer the question.What did the little boy find in the park?A. A new ball.B. A lost dog.C. A broken toy.D. A lost coin.Answer: DExplanation: The story describes a little boy who finds a coin while playingin the park, so the correct answer is “A lost coin.”3、What is Tom’s favorite color?Transcript (what students would hear):•Speaker: “Hi, I’m Tom. My favorite color is blue because it reminds me of the sky and the ocean.”Question:•After listening, write down Tom’s favorite color.Answer: BlueExplanation: In the audio, Tom clearly states that his favorite color is blue, and he explains why he likes it by saying it reminds him of the sky and the ocean. Students need to pay attention to the direct information provided and select or write the correct color.4、How many books does Sarah have on her bookshelf?Transcript (what students would hear):•Speaker: “Hello, my name is Sarah. I love reading. On my bookshelf, I have 12 books.There are stories about animals, space, and magic.”Question:•After listening, write down the number of books Sarah has on her bookshelf.Answer: 12Explanation: Sarah mentions that she has 12 books on her bookshelf. The number is given directly, so students should focus on capturing this specific detail from the audio. The additional information about the types of stories in the books is there to add context but is not needed to answer the question.In a real test, these transcripts would be spoken aloud, and the students would only have the questions in front of them. They would then write their answers on the test paper. If you wish to use these for an actual tes t, you’d need to record the spoken part and play it back to the students during the exam.5、Listen to the conversation and choose the correct answer.A. What are they talking about?1.They are talking about the weather.2.They are talking about their school day.3.They are talking about their favorite food.Answer: 2Explanation: In the conversation, the speakers are discussing their school day and what they did during the day.6、Listen to the story and answer the question.Question: What does the story tell us about friendship?A. 1. Friends should always be honest.2.Friends should always help each other.3.Friends should always do the same activities together.Answer: 2Explanation: The story emphasizes the importance of helping each other and supporting one another, which is a key aspect of friendship.7、What does Sarah want to drink?A. WaterB. JuiceC. MilkAnswer: B. JuiceExplanation: In the dialogue, Sarah says, “I’m thirsty. Can I have some juice, please?” This clearly indicates that Sarah wants to drink juice.8、Where are the children playing?A. In the parkB. At the beachC. In the playgroundAnswer: C. In the playgroundExplanation: The conversation mentions, “Let’s go to the swings in the playground.” This shows that the children are playing in the playground.9.Listen to the dialogue and choose the correct answer.A. What’s the weather like today?B. How is your mother?C. What’s the time now?Answer: AExplanation: The dialogue likely involves a conversation about the weather, which is a common topic for young learners. The correct answer should reflecta question about the weather.10.Listen to the story and answer the question.Question: What did the little boy do with his cat?A. He took his cat to the park.B. He played with his cat at home.C. He gave his cat some food.Answer: BExplanation: The story should involve the little boy and his cat, and the question asks about what the boy did with his cat. The correct answer should reflect an activity related to the boy and his cat, such as playing together at home.11、Question: Listen to the conversation and answer the question. The teacher will play a short dialogue between two children talking about their favorite subjects. After listening, you need to choose which subject one of the children likes best.•A) Math•B) English•C) Art•D) Physical Education (P.E.)Answer: C) ArtExplanation: In the dialogue, one child expresses a preference for drawing and painting, indicating that Art is their favorite subject. Pay attention to keywords such as “colors,” “paints,” and “drawing” to identify the correct answer.12、Question: You will hear a sentence about what a student does after school.Choose the activity that the student mentions they do on Mondays and Wednesdays.•A) Play soccer•B) Go to the library•C) Have piano lessons•D) Watch TVAnswer: C) Have piano lessonsExplanation: The sentence states that the student has piano lessons on specific days of the week. Listen for the days mentioned (Mondays and Wednesdays) in conjunction with the activity. The phrase “piano lessons” should be clearly stated, making it easy to select the correct option.二、选择题（本大题有12小题，每小题2分，共24分）1、3、5、7、9、2、A. I have a red ball.B. She has a blue ball.C. We have two yellow balls.D. They have a big green ball.答案：C解析：根据题意，我们需要选择一个句子描述“我们有两个黄色的球”。
辽宁省大连市初一上学期期中数学试卷与参考答案
辽宁省大连市数学初一上学期期中自测试卷(答案在后面)一、选择题（本大题有10小题，每小题3分，共30分）1、一个长方形的长是6厘米，宽是宽的3倍，求这个长方形的面积。
选项：A、18平方厘米B、36平方厘米C、54平方厘米D、72平方厘米2、小华有5个苹果，小明比小华多2个苹果，小华和小明一共有多少个苹果？选项：A、8个B、9个C、10个D、11个3、在下列各数中，哪个数是负数？A、-3B、3C、0D、-5/24、一个长方形的长是8厘米，宽是5厘米，那么它的周长是多少厘米？A、13厘米B、27厘米C、33厘米D、17厘米5、已知一个等腰三角形的底边长为8厘米，腰长为10厘米，那么这个三角形的周长是多少厘米？A. 24厘米B. 26厘米C. 28厘米D. 30厘米6、一个长方形的长是宽的两倍，如果长方形的周长是40厘米，那么这个长方形的面积是多少平方厘米？A. 50平方厘米B. 60平方厘米C. 80平方厘米D. 100平方厘米7、（）下列数中，绝对值最小的是：A、-3B、-2C、0D、28、如果a > b，那么下列不等式中正确的是：A、a - b > 0B、a + b > 0C、-a < -bD、ab > 09、一个长方形的长是10厘米，宽是5厘米，它的周长是多少厘米？选项：A. 20厘米B. 25厘米C. 30厘米D. 50厘米 10、一个数的3倍加上12等于54，这个数是多少？选项：A. 10B. 12C. 15D. 18二、填空题（本大题有5小题，每小题3分，共15分）1、一个长方形的面积是24平方厘米，如果长是8厘米，那么宽是______ 厘米。
2、一个等腰三角形的底边长是12厘米，腰长是15厘米，那么这个三角形的周长是 ______ 厘米。
3、已知一个等腰三角形的底边长为8cm，腰长为10cm，那么这个等腰三角形的面积是________cm²。
4、若x是实数，且(3x2−5x+2=0)，则(x2−2x+1)的值为 ________ 。
2024年河北省石家庄市高二上学期期中物理试卷与参考答案
2024年河北省石家庄市物理高二上学期期中自测试卷(答案在后面)一、单项选择题（本大题有7小题，每小题4分，共28分）1、下列关于物理量单位的说法中，正确的是（）A、牛顿（N）是力的基本单位，千克（kg）是质量的导出单位B、米每秒平方（m/s²）是加速度的单位，千克·米/秒²（kg·m/s²）是力的单位C、焦耳（J）是功和能量的基本单位，牛顿·米（N·m）是功率的单位D、伏特（V）是电压的基本单位，安培（A）是电流的导出单位2、一物体从静止开始沿水平面加速运动，下列关于物体运动状态的说法中，正确的是（）A、物体的速度随时间增加，但加速度保持不变B、物体的速度随时间增加，加速度随时间减小C、物体的速度随时间增加，加速度随时间增加D、物体的速度和加速度都随时间增加，但加速度增加得更快3、一辆汽车以恒定加速度从静止开始加速，在10秒后达到20 m/s的速度。
请问这辆汽车的加速度是多少？A. 0.5 m/s²B. 1.0 m/s²C. 2.0 m/s²D. 4.0 m/s²4、当一个物体沿光滑斜面下滑时，以下哪种力不是作用于该物体上的？A. 重力B. 支持力C. 摩擦力D. 平行于斜面向下的分力5、在以下四个选项中，哪个是正确的力的单位？A、N/mB、kg/sC、ND、kg6、在以下四个选项中，哪个是正确的功率的单位？A、W/sB、J/sC、N·mD、N·m/s7、一个物体从静止开始沿直线加速运动，加速度恒定。
如果它在第1秒内的位移是2米，那么它在第3秒内的位移是多少？A. 2米B. 4米C. 6米D. 10米二、多项选择题（本大题有3小题，每小题6分，共18分）1、下列关于力的说法中，正确的是（）A、力的作用是相互的，一个物体对另一个物体施加力的同时，另一个物体也对该物体施加力B、力的单位牛顿（N）是基本单位，1N等于1kg·m/s²C、力的三要素是大小、方向和作用点，改变其中一个要素，力的作用效果会改变D、重力是地球对物体的吸引力，与物体的质量成正比，与物体的高度无关2、关于运动和静止的相对性，以下说法正确的是（）A、物体的运动状态是绝对的，不依赖于观察者的选择B、如果两个物体相对于地面的速度相同，那么它们对于地面上的观察者来说是静止的C、在匀速直线运动中，一个物体相对于另一个也在做匀速直线运动的物体是静止的D、在非惯性参照系中，物体的运动状态可能不会遵循牛顿运动定律3、下列关于光现象的描述中，正确的是：A、光的反射定律表明反射光线、入射光线和法线在同一平面内，且反射光线与入射光线分别位于法线的两侧。
河北省廊坊市化学高一上学期期中试卷与参考答案
河北省廊坊市化学高一上学期期中自测试卷(答案在后面)一、单项选择题（本大题有16小题，每小题3分，共48分）1、下列物质中，属于纯净物的是：A、空气B、海水C、液氧D、矿泉水2、下列物质中，属于有机高分子化合物的是（）A、CO2B、HClC、C6H12O6D、CH43、下列物质中，属于强电解质的是：A. 蔗糖（C12H22O11）B. 醋酸（CH3COOH）C. 氯化钠（NaCl）D. 二氧化碳（CO2）4、下列物质中，属于非电解质的是（）A、HCl（水溶液中完全电离）B、NaCl（水溶液中完全电离）C、CO2（水溶液中部分电离）D、CH4（水溶液中不电离）5、下列哪一种物质在水中的溶解度随温度升高而减小？A. 氯化钠 (NaCl)B. 硝酸钾 (KNO3)C. 氢氧化钙 (Ca(OH)2)D. 蔗糖 (C12H22O11)6、下列物质中，不属于同一种元素的是：A、O2和O3B、H2O和H2O2C、NaCl和NaOHD、CO2和CO7、在下列反应中，不属于置换反应的是：A、Cu + 2AgNO3 = Cu(NO3)2 + 2AgB、Fe2O3 + 3CO = 2Fe + 3CO2C、Zn + 2HCl = ZnCl2 + H2↑D、H2 + Cl2 = 2HCl8、下列关于化学实验的描述，不正确的是：A、在实验室中，使用酒精灯时，要注意“两查、两禁、一不可”。
B、实验室中的浓硫酸应缓慢倒入水中，并不断搅拌，以防止局部过热。
C、实验室中的氢氧化钠固体应放在干燥的棕色瓶中保存，以防止其吸收空气中的水分和二氧化碳。
D、在实验室进行加热实验时，应将试管倾斜，试管口略低于试管底部，以防止加热不均导致试管破裂。
9、下列物质中，不属于同位素的是（）A. 氢的同位素氘、氚B. 氧的同位素氧-16、氧-18C. 碳的同位素碳-12、碳-14D. 氦的同位素氦-3、氦-410、下列物质中，不属于同素异形体的是（）A. 金刚石与石墨B. 氧气与臭氧C. 氢气与氘气D. 二氧化碳与一氧化碳11、在下列化合物中，不属于有机化合物的是（）A、甲烷（CH4）B、二氧化碳（CO2）C、乙醇（C2H5OH）D、苯（C6H6）12、下列物质中，属于有机物的是（）A、H2OB、CO2C、CH4D、NaOH13、下列物质中，不属于有机高分子化合物的是：A. 聚乙烯B. 聚氯乙烯C. 聚苯乙烯D. 氧化铝14、下列物质中，不属于同位素的是（）A. ²⁰Ne 和²²NeB. ¹²C 和¹⁴CC. ¹³H 和²⁴HeD. ⁵⁷Fe 和⁵⁸Fe15、下列关于元素周期表的描述正确的是：A. 元素周期表中的元素按照原子序数递增排列B. 元素周期表中的元素按照元素性质递增排列C. 元素周期表中的元素按照原子量递增排列D. 元素周期表中的元素按照元素名称递增排列16、在下列物质中，属于有机化合物的是：A、H₂OB、CO₂C、C₆H₁₂O₆D、NaCl二、非选择题（本大题有4小题，每小题13分，共52分）第一题一、化学实验操作题1.下列实验操作正确的是（）A. 向试管中倾倒液体药品时，瓶塞要倒放，标签要对准手心，瓶口紧挨试管口。
2024-2025学年湖南省高二上学期期中物理试卷与参考答案
2024-2025学年湖南省物理高二上学期期中自测试卷(答案在后面)一、单项选择题（本大题有7小题，每小题4分，共28分）1、下列关于物理量的说法中，正确的是：A、速度是位移与时间的比值，因此速度总是正值。
B、加速度是速度变化量与时间的比值，加速度越大，速度变化越快。
C、力是改变物体运动状态的原因，但力的作用效果只与力的大小有关。
D、功率是做功的快慢程度，功率越大，做功越快。
2、一个物体在水平面上做匀速直线运动，下列哪个因素不会影响其动能的大小？A、物体的质量B、物体的速度C、物体的位移D、物体的运动时间3、以下关于力的说法中，正确的是（）A、力是物体间的相互作用，物体受到力的同时也会对施力物体施加力B、力的单位是千克，表示力的强度C、物体在力的作用下运动状态改变，说明力是改变物体运动状态的原因D、两个物体之间没有接触也可以产生力的作用，比如磁铁吸引铁钉4、一个物体在水平面上受到两个力的作用，一个力是水平向右的摩擦力，另一个力是水平向左的推力。
如果物体保持静止，那么这两个力之间的关系是（）A、它们的大小相等，方向相反B、它们的大小不等，方向相反C、它们的大小相等，方向相同D、它们的大小不等，方向相同5、一个物体在光滑水平面上做匀速圆周运动，下列说法正确的是：A. 物体所受合力为零B. 物体的速度大小不变，方向也不变C. 物体所受的向心力大小不变，方向指向圆心D. 物体没有受到任何外力的作用6、两个点电荷分别带有+Q和-Q的电荷量，它们相距一定距离放置。
若仅考虑这两个电荷之间的相互作用，则下列关于两点电荷连线中点处的电场强度说法正确的是：A. 电场强度为零B. 电场强度方向指向-QC. 电场强度方向指向+QD. 电场强度最大7、一个物体在水平面上做匀速直线运动，如果突然受到一个水平向左的摩擦力作用，那么以下说法正确的是（）A、物体的速度会立即减小B、物体的速度会逐渐减小C、物体的速度会逐渐增大D、物体的速度不会改变二、多项选择题（本大题有3小题，每小题6分，共18分）1、在惯性参考系中，一个物体同时受到两个力的作用，这两个力大小分别为5N和12N，并且作用方向相同。
河南省郑州市高一上学期期中语文试卷及解答参考
河南省郑州市语文高一上学期期中自测试卷(答案在后面)一、现代文阅读Ⅰ（18分）阅读下面的文章，完成下面小题。
【原文】①绿皮火车上，绿皮车厢里，我第一次看到了这么多的绿皮人。
绿皮人，就是农民。
他们有六七十岁的老人，有十七八岁的少年，有三十来岁的中年，也有四十来岁的壮年。
他们来自五湖四海，从全国各地汇聚到城市，他们有的一身尘土，有的满脸疲惫，有的衣衫褴褛，有的步履蹒跚。
但他们的眼睛都充满了希望。
②绿皮人，就是农民。
他们背井离乡，来到城市，为了生活，为了生计，为了子女的未来。
他们没有豪华的轿车，没有舒适的公寓，没有丰厚的工资，没有优越的待遇。
但他们有勤劳的双手，有坚韧的意志，有朴实的品质。
他们用辛勤的汗水，换取了城市的繁华，换取了家庭的幸福。
③绿皮人，就是农民。
他们默默无闻，他们无私奉献。
他们不图名利，不图回报。
他们只是想通过自己的努力，让家人过上好日子。
他们用自己的双手，撑起了城市的半边天。
④绿皮人，就是农民。
他们勤劳、朴实、善良。
他们诚实守信，他们热情好客。
他们用自己的行动，诠释了中华民族的传统美德。
⑤绿皮人，就是农民。
他们有梦想，有追求。
他们渴望知识，渴望进步。
他们愿意为了梦想，为了追求，付出一切努力。
【小题1】请概括文章的中心思想。
【小题2】文章中“绿皮人”指的是什么？【小题3】请分析文章第③段的表达方式。
【小题4】文章第④段中“绿皮人用自己的行动，诠释了中华民族的传统美德”这句话有什么作用？【小题5】结合全文，谈谈你对“绿皮人”的认识。
二、现代文阅读Ⅱ（17分）【阅读文章】《青春的记忆》在那个阳光明媚的午后，我第一次踏入了高中校园。
一切对我来说都是那么的新鲜，那么的不知所措。
校园里绿树成荫，鸟语花香，仿佛在诉说着青春的故事。
而我，一个懵懂的少年，即将在这里开启一段全新的旅程。
高一上学期，我们开始了语文课的学习。
那位语文老师，一个中年男子，满头银发，却总是带着一股不羁的气息。
他的课堂充满了激情，每一次朗读都让我们仿佛置身于文章的世界。
2024年北京版初二上学期期中化学试卷及解答参考
2024年北京版化学初二上学期期中自测试卷(答案在后面)一、单项选择题（本大题有12小题，每小题3分，共36分）1、下列物质中，不属于纯净物的是（）A、水（H₂O）B、空气C、蒸馏水D、二氧化碳（CO₂）2、在下列化学反应中，不属于置换反应的是（）A、铁与硫酸铜溶液反应生成硫酸亚铁和铜B、氢气与氧气反应生成水C、碳与氧化铜反应生成铜和二氧化碳D、锌与稀盐酸反应生成氯化锌和氢气3、下列物质中，属于纯净物的是：A、空气B、食盐水C、水D、砂糖水4、下列物质的溶解度随温度升高而减小的是：A、氯化钠B、硫酸铜C、氢氧化钙D、硝酸钾5、下列物质中，不属于纯净物的是：A. 氯化钠（食盐）B. 纯水C. 空气D. 纯铜6、在下列化学反应中，不属于置换反应的是：A. Zn + CuSO₄ → ZnSO₄ + CuB. Fe + 2HCl → FeCl₂ + H₂↑C. 2H₂O₂ → 2H₂O + O₂↑D. 2KClO₃ → 2KCl + 3O₂↑7、下列物质中，属于金属单质的是：A. 氧气（O₂）B. 氯化钠（NaCl）C. 铁（Fe）D. 硫磺（S）8、下列化学反应中，属于置换反应的是：A. 2H₂O → 2H₂↑ + O₂↑B. H₂ + Cl₂ → 2HClC. CaCO₃ → CaO + CO₂↑D. 2KClO₃ → 2KCl + 3O₂↑9、下列物质中，不属于纯净物的是：A、水B、空气C、二氧化碳D、硫酸 10、在下列反应中，不属于置换反应的是：A、Zn + CuSO4 → ZnSO4 + CuB、2H2 + O2 → 2H2OC、Fe2O3 + 3CO → 2Fe + 3CO2D、CaCO3 → CaO + CO211、下列关于化学式的说法正确的是：A. 化学式表示的是物质的名称B. 化学式表示的是物质的组成元素C. 化学式表示的是物质的分子结构D. 化学式表示的是物质的质量12、在下列物质中，属于纯净物的是：A. 空气B. 矿泉水C. 氯化钠溶液D. 氧气二、多项选择题（本大题有3小题，每小题3分，共9分）1、下列物质中，属于纯净物的是（）A、空气B、食盐水C、蒸馏水D、石灰水2、下列变化中，属于化学变化的是（）A、铁生锈B、冰雪融化C、酒精挥发D、水通电分解3、下列关于化学物质的描述正确的是：A、水在常温下是一种无色、无味的液体，凝固点为0°C。
2024-2025学年山东省聊城市高二上学期期中生物学试卷与参考答案
2024-2025学年山东省聊城市生物学高二上学期期中自测试卷(答案在后面)一、单项选择题（本大题有12小题，每小题2分，共24分）1、以下哪项不是生物学中细胞的基本结构？A、细胞膜B、细胞核C、细胞壁D、细胞器2、在生物学实验中，以下哪项操作不是观察植物细胞有丝分裂的步骤？A、制作临时装片B、观察染色体C、观察细胞壁D、观察细胞质流动3、题干：以下关于细胞分裂的描述，正确的是（）A、有丝分裂和减数分裂过程中，染色体数目在后期加倍，在末期减半B、有丝分裂和减数分裂过程中，染色单体数目在后期加倍，在末期减半C、有丝分裂和减数分裂过程中，着丝点分裂发生在后期D、有丝分裂和减数分裂过程中，核膜破裂发生在后期4、题干：下列关于基因表达过程的描述，正确的是（）A、基因表达过程包括转录和翻译两个阶段，其中转录在细胞核中进行，翻译在细胞质中核糖体上进行B、基因表达过程包括转录和翻译两个阶段，其中转录在细胞质中核糖体上进行，翻译在细胞核中进行C、基因表达过程包括转录和翻译两个阶段，其中转录在细胞质中进行，翻译在细胞核中进行D、基因表达过程包括转录和翻译两个阶段，其中转录在细胞核中进行，翻译在细胞质中核糖体上进行，但翻译过程中不需要模板5、下列关于细胞膜结构的说法，正确的是：A. 细胞膜是由蛋白质和脂质组成的B. 细胞膜是全透性的，物质可以自由通过C. 细胞膜是细胞内部的，与外界环境没有直接关系D. 细胞膜的功能主要是维持细胞形态6、关于酶的特点，以下哪项是错误的：A. 酶具有高度的专一性B. 酶具有高效性C. 酶的活性受温度和pH的影响D. 酶的化学本质是蛋白质7、题干：下列关于细胞膜的描述，正确的是：A、细胞膜是由磷脂双分子层和蛋白质分子构成的半透膜。
B、细胞膜具有全透性，物质可以自由通过。
C、细胞膜上的蛋白质分子都是具有运输功能的载体蛋白。
D、细胞膜上的磷脂分子和蛋白质分子是固定不动的。
8、题干：以下关于DNA分子的叙述，正确的是：A、DNA分子具有双螺旋结构，由两条互补的链组成。
2024-2025学年人教版小学五年级上学期期中英语试卷与参考答案
2024-2025学年人教版英语小学五年级上学期期中自测试卷与参考答案一、听力部分（本大题有12小题，每小题2分，共24分）1、Listen to the dialogue and choose the correct answer.A. How old is the boy?B. What is the boy’s favorite color?C. Where does the boy live?Answer: BExplanation: The dialogue is about a boy and his mother discussing his favorite color. The mother asks, “What is your favorite color, son?” indicating the question is about the boy’s preference for a color.2、Listen to the short passage and complete the sentence with the missing word.Tom is a very active boy. He loves to play outdoor games, especially (______).A. footballB. basketballC. chessAnswer: AExplanation: The passage mentions that Tom is active and enjoys outdoor games. The missing word is likely to be a sport that is typically played outdoors, which is football. Therefore, the correct answer is “football.”3、Listen to the dialogue and choose the correct answer.( ) What’s the weather like today?A. It’s sunny.B. It’s rainy.C. It’s cloudy.Answer: AExplanation: The dialogue will likely contain a sentence such as “It’s a beautiful sunny day today,” indicating that the weather is sunny. Therefore, the answer is A.4、Listen to the sentence and match it with the correct picture.( ) The boy is playing football in the park.(Provide a visual representation of a boy playing football in a park as an answer option. This question does not directly have a textual answer, but rather an image or illustration would be matched.)Explanation: The sentence describes a specific scenario where a boy is engaged in an activity (playing football) in a particular location (the park). The listener should identify the image that accurately portrays this scenario.5、What is the boy doing in the park?A. He is flying a kite.B. He is reading a book.C. He is playing basketball.Answer: A. He is flying a kite.Explanation: In the dialogue, the boy mentions that he loves feeling the wind when he flies his kite, which indicates that he is flying a kite in the park.6、Where are the children going for their school trip?A. To the zoo.B. To the museum.C. To the beach.Answer: B. To the museum.Explanation: The teacher states in the conversation that they will be learning about dinosaurs and ancient history, suggesting that the destination is a museum rather than a zoo or a beach.7、Listen to the dialogue between two friends and choose the best answer to complete the sentence.A. How old are you?B. How tall are you?C. How much do you weigh?Answer: BExplanation: The question is asking about the physical attributes of the speaker. In the dialogue, the speaker mentions their height, which correspondsto option B.8、Listen to the following question and select the correct response from the options provided.Question: What are you going to do after school?A. I will go to the library.B. I will watch TV.C. I will play football.Answer: AExplanation: The question is about the speaker’s plans after school. In the dialogue, the speaker mentions that they will go to the library, which aligns with option A.9、What is the main activity that the children are doing in the park?A. Playing footballB. Feeding ducksC. Riding bicyclesAnswer: B. Feeding ducksExplanation: In the audio clip, you heard children talking about the bread crumbs they were using to feed the ducks at the pond. This indicates that feeding the ducks was the primary activity taking place.10、How does the weather affect the narrator’s feel ings about the day?A. The sunny weather makes the narrator feel happy.B. The rainy weather makes the narrator feel sad.C. The cloudy weather makes the narrator feel calm.Answer: A. The sunny weather makes the narrator feel happy.Explanation: The passage mentioned that the sun was shining brightly, which made everything look cheerful, and the narrator expressed feeling very joyful because of the nice weather.11.Listen to the conversation and choose the best answer.A. The boy is playing with a soccer ball.B. The girl is reading a book.C. They are having a picnic in the park.Answer: BExplanation: The conversation clearly mentions that the girl is reading a book, making option B the correct answer.12.Listen to the question and answer it.Question: How many apples does the boy have in his backpack?A. 2 applesB. 5 applesC. 8 applesAnswer: CExplanation: The question asks about the number of apples in the boy’s backpack, and the correct answer is provided as 8 apples in the conversation.二、选择题（本大题有12小题，每小题2分，共24分）1、Choose the correct word to complete the sentence:The children_______playing in the park.A) amB) isC) areD) beAnswer: C) areExplanation: The subject “the children” is plural, so the verb should also be in its pl ural form, which is “are.”2、Select the appropriate preposition to fill in the blank:We will arrive_______school before 8 o’clock.A) atB) inC) onD) byAnswer: A) atExplanation: The preposition “at” is used with places that are considered points, such as schools, stations, etc., especially when referring to arriving or departing. In this case, “arrive at school” is the correct usage.3.Choose the correct word to complete the sentence.The cat is sleeping on the_of the bed.A. edgeB. topC. bottomD. sideAnswer: A. edgeExplanation: The word “edge” refers to the outer or furthest part of something, which fits the context of the cat sleeping on the outer part of the bed.4.Select the sentence that uses the correct form of the verb “do.”A. They does their homework every day.B. She don’t like the weather today.C. We don’t watch TV much.D. You all can go out now, doesn’t it?Answer: C. We don’t watch TV much.Explanation: The correct form of the verb “do” is used in the negative form “don’t” when the subject is “we,” “you,” “they,” or “I” (first person singular). The other options contain incorrect verb forms or questions.5.Choose the correct word to complete the sentence:The cat is sitting under the tree, looking _______.A. happyB. tiredC. hungryAnswer: B. tiredExplanation: The sentence describes a cat sitting under a tree, which suggests it might be resting or feeling sleepy. Therefore, “tired” is the most appropriate word to complete the sentence.6.Choose the correct question word to complete the sentence:________ did you finish your homework?A. HowB. WhatC. WhereAnswer: A. HowExplanation: The sentence is asking about the time it took to finish the homework. The correct question word to use in this context is “how,” which is used to ask about time, manner, or degree.7.Choose the correct word to complete the sentence.The cat sat on the_and watched the birds.A. tableB. chairC. floorAnswer: CExplanation: The sentence describes a cat watching birds, which implies that the cat is likely to be on the floor, where birds are commonly found. Therefore, “floor” is the correct choice.8.Read the sentence and choose the correct word to fill in the blank.If you_(A) go out, please take an umbrella with you.A. willB. wouldC. doAnswer: AExplanation: The sentence is using a conditional structure to suggest a future action. “If you will go out” is the correct structure for expressing a future condition in this context. The other options, “would” and “do,” are not used in this conditional structure.9.Choose the correct word to complete the sentence.The cat is sitting__________the window.A. onB. inC. underD. overAnswer: AExplanation: The correct answer is “on” because cats typically sit on top of thin gs, like windowsills. “In” would imply the cat is inside the window, “under” would mean below the window, and “over” would mean above the window, none of which are typical positions for a cat sitting.plete the sentence using the correct form of the verb in parentheses.I__________(go) to the park with my friends tomorrow.A. am goingB. goC. wentD. will goAnswer: AExplanation: The correct answer is “am going” because the sentence is talking about a future action that will happen on a specific day. “Am going” is the present continuous tense, which is used to describe actions that are happening at the moment of speaking or in the near future. “Go” is the simple present tense, “went” is the past simple tense, and “will go” is the future simple tense, none of which are appropriate for the given context.11.Choose the correct word to complete the sentence.The cat is sleeping on the _.A. chairB. deskC. doorAnswer: AExplanation: The sentence describes a cat sleeping, which is most likely to be found on a chair rather than a desk or door, making “chair” the most appropriate choice.12.Select the sentence that has correct punctuation.A. The dog, runs, fast, and, jumps, high.B. The sun sets, in the west, every day.C. She has a cat, a dog, and a fish.Answer: CExplanation: Option C uses commas correctly to separate items in a list. Option A has incorrect punctuation as it uses commas inappropriately, and Option B uses a comma where it’s not needed, as there is no need for a pause after “sets.”三、完型填空（10分）Part 3: Cloze TestRead the following passage and choose the best word for each blank from the options given below.My favorite season is definitely autumn. The air is cool and crisp, and the leaves change into beautiful shades of yellow, orange, and red. One weekend, I decided to go for a walk in the park with my family. The park was filled with people enjoying the fall weather.1.The weather was _1__ and perfect for a walk.2.I wore a _2__ sweater to keep warm.3.As we walked, we noticed the _3__ of the trees around us.4.My sister picked up a _4__ leaf and said it was like a little boat.5.We spent the afternoon _5__ and taking photos.A. sunnyB. cloudyC. windyD. cool1.D2.A3.B4.C5.A四、阅读理解（26分）Four. Reading ComprehensionPassage:Last weekend, the students of Grade 5 at our school had an exciting field trip to the local zoo. The zoo is located near the city center and is home to a variety of animals from all over the world. The students were excited to see the animals they had only read about in books.The day began with a visit to the elephant enclosure. The elephants were huge and majestic, and the students were amazed by their gentle nature. Next, they went to the reptile house, where they saw snakes, lizards, and even a crocodile. The most popular exhibit, however, was the gorilla habitat. The gorillas were playful and curious, and they spent a lot of time interacting with the students.The students also had the opportunity to learn about conservation efforts at the zoo. The zookeeper gave a talk about how they are working to protectendangered species and preserve the natural habitats of animals. The students were fascinated by the information and asked many questions.By the end of the day, the students were tired but happy. They had not only seen animals they had never seen before, but they had also learned a lot about wildlife conservation. The trip was a great success and the students couldn’t wait to share their experiences with their families.Questions:1.Where is the zoo located?a) Near the city centerb) In the countrysidec) In a forestd) At the beach2.What animal exhibit was the most popular with the students?a) The elephant enclosureb) The reptile housec) The gorilla habitatd) The conservation center3.What did the students learn about during the zookeeper’s talk?a) How to feed the animalsb) The names of all the animalsc) Conservation efforts and wildlife preservationd) The history of the zooAnswers:1.a) Near the city center2.c) The gorilla habitat3.c) Conservation efforts and wildlife preservation五、写作题（16分）题目：Write a short passage about your favorite animal. Describe its appearance, characteristics, and why you like it so much. You should write at least 100 words.示例：My favorite animal is the panda. Pandas are black and white, with a round face and big, black eyes. They have a cute and fluffy tail, and their thick fur keeps them warm in the cold mountains of China. Pandas are known for their gentle nature and slow movements. They spend most of their time eating bamboo, which is their main diet. I like pandas because they are unique and very cute. They also help to protect the environment where they live.解析：1.Introduction: The passage begins with a clear statement of the favorite animal, which is the panda.2.Appearance: The writer describes the black and white coloration, round face, and big, black eyes of the panda. This helps the reader form a mental image of the animal.3.Characteristics: The writer mentions the cute and fluffy tail, which is another characteristic that adds to the panda’s appeal. Additionally, thewriter discusses the panda’s gentle nature and slow movements, which are well-known traits.4.Habitat and Diet: The passage includes information about where pandas live and what they eat, which is bamboo. This provides context for the reader.5.Conclusion: The writer concludes by stating why they like pandas, emphasizing their uniqueness and cuteness, and their role in protecting the environment.This passage follows the structure of a typical writing prompt and provides a clear and engaging description of the writer’s favorite animal.。
2024年沪教版小学六年级上学期期中数学试卷与参考答案
2024年沪教版数学小学六年级上学期期中自测试卷(答案在后面)一、选择题（本大题有6小题，每小题2分，共12分）1、题目：一个长方形的长是12厘米，宽是5厘米，求这个长方形的面积。
A、60平方厘米B、50平方厘米C、120平方厘米D、25平方厘米2、题目：小华有3个苹果，小明有4个苹果，他们两人一共有多少个苹果？A、7个B、8个C、9个D、10个3、题目：一个长方形的长是8厘米，宽是3厘米，这个长方形的周长是多少厘米？选项：A. 22厘米B. 24厘米C. 30厘米D. 32厘米4、题目：小华有5个苹果，小丽比小华多2个苹果，小丽有多少个苹果？选项：A. 7个B. 8个C. 9个D. 10个5、小明从家到学校的路程是500米，他骑自行车以每小时15公里的速度行驶，问小明骑自行车到学校需要多少时间？（）A、5分钟B、10分钟C、20分钟D、30分钟6、一个长方形的长是6厘米，宽是4厘米，求这个长方形的面积。
（）A、20平方厘米B、24平方厘米C、36平方厘米D、48平方厘米二、填空题（本大题有6小题，每小题4分，共24分）1、一个长方形的长是10厘米，宽是5厘米，这个长方形的面积是________ 平方厘米。
2、一个正方体的棱长是3厘米，那么这个正方体的表面积是 ________ 平方厘米。
3、小华有一块长方形的地砖，长是4分米，宽是2分米。
他需要铺满一个长是10分米，宽是6分米的房间。
至少需要这样的地砖 ____ 块。
4、一个三位数的百位数字是3，个位数字比十位数字大2。
这个数是 ____ 。
5、一个长方体的长是12厘米，宽是5厘米，高是3厘米，它的体积是 ____ 立方厘米。
6、小明家养了5箱蜜蜂，每箱蜜蜂可以采集120千克的花蜜，那么小明家一共可以采集花蜜 ____ 千克。
三、计算题（本大题有5小题，每小题4分，共20分）1、（1）计算：123×67；（2）计算：789÷21；（3）计算：456+789−321。
福建省泉州市初一上学期期中化学试卷与参考答案
福建省泉州市化学初一上学期期中自测试卷(答案在后面)一、单项选择题（本大题有12小题，每小题3分，共36分）1、化学元素周期表中，以下哪个元素位于第二周期、第IA族？A、锂（Li）B、钠（Na）C、钙（Ca）D、镁（Mg）2、在下列物质中，哪种物质属于氧化物？A、高锰酸钾（KMnO4）B、过氧化氢（H2O2）C、硫酸（H2SO4）D、氯化钠（NaCl）3、题目：下列物质中，属于酸的是（）A. 氢氧化钠B. 氯化钠C. 碳酸D. 氧气4、题目：下列关于化学反应的叙述，正确的是（）A. 所有化学反应都放热B. 化学反应前后元素的种类一定改变C. 化学反应一定伴随着新物质的生成D. 物质的溶解过程都是化学变化5、在下列物质中，不属于氧化物的是（）A. 水（H2O）B. 二氧化碳（CO2）C. 氯化钠（NaCl）D. 氧化钙（CaO）6、下列关于化学变化的说法中，正确的是（）A. 化学变化过程中，物质的质量会减少B. 化学变化过程中，物质的分子种类不变C. 化学变化过程中，物质的颜色和气味可能发生变化D. 化学变化过程中，物质的状态一定发生变化7、下列物质中，属于氧化物的是（）A. 氢气（H2）B. 氯化钠（NaCl）C. 水（H2O）D. 氧气（O2）8、下列物质的化学式书写正确的是（）A. 氢气（H2）B. 氧气（O2）C. 氯化氢（HCl）D. 碳酸（H2CO3）9、下列物质中，属于有机物的是：A. H2O（水）B. CO2（二氧化碳）C. CH4（甲烷）D. NaCl（氯化钠） 10、在下列化学反应中，不属于置换反应的是：A. 2H2 + O2 → 2H2O（氢气与氧气反应生成水）B. Zn + CuSO4 → ZnSO4 + Cu（锌与硫酸铜反应生成硫酸锌和铜）C. 2HCl + CaCO3 → CaCl2 + H2O + CO2↑（盐酸与碳酸钙反应生成氯化钙、水和二氧化碳）D. N2 + 3H2 → 2NH3（氮气与氢气反应生成氨）11、下列物质中属于纯净物的是：A. 空气B. 海水C. 氧气D. 食盐水12、实验室里用来量取液体体积的仪器是：A. 试管B. 烧杯C. 量筒D. 漏斗二、多项选择题（本大题有3小题，每小题3分，共9分）1、下列物质中，属于纯净物的是：A、空气B、食盐水C、蒸馏水D、矿泉水2、下列关于化学变化和物理变化的说法正确的是：A、化学变化一定伴随着新物质的生成B、物理变化不一定伴随着新物质的生成C、化学变化和物理变化过程中，分子本身可能不发生变化D、物理变化和化学变化的本质区别在于是否有新物质生成3、下列关于水的说法正确的是：A. 水是由氢气和氧气组成的。
2024-2025学年沪教版小学六年级上学期期中数学试卷与参考答案
2024-2025学年沪教版数学小学六年级上学期期中自测试卷(答案在后面)一、选择题（本大题有6小题，每小题2分，共12分）1、一个长方形的长是6厘米，宽是宽的2/3，求这个长方形的面积。
选项：A、12平方厘米B、18平方厘米C、24平方厘米D、36平方厘米2、小华有一些苹果，他先给了小明1/4，又给了小刚1/3，最后还剩下12个苹果。
求小华原来有多少个苹果？选项：A、18个B、24个C、36个D、48个3、下列各数中，能被3整除的是（）A、354B、469C、580D、7214、一个长方形的长是12厘米，宽是8厘米，求这个长方形的周长。
（）A、40厘米B、56厘米C、64厘米D、80厘米5、已知一个正方形的边长为4厘米，求这个正方形的周长是多少？A、8厘米B、12厘米C、16厘米D、20厘米6、如果一个数除以7的商是9，并且没有余数，那么这个数是多少？A、56B、63C、70D、77二、填空题（本大题有6小题，每小题4分，共24分）1、一个长方形的长是6厘米，宽是宽的1/2。
这个长方形的周长是______ 厘米。
2、一个分数的分子是7，分母是它的分子加9。
这个分数的小数形式是 ______ 。
3、一个长方形的长是10厘米，宽是6厘米，那么这个长方形的周长是 ______ 厘米。
4、一个三位数，百位上的数字比十位上的数字大2，十位上的数字比个位上的数字大1，这个三位数最大是 ______ 。
5、一个长方形的长是6.5厘米，宽是2.5厘米，它的周长是 ______ 厘米。
6、一个圆柱的高是4.5分米，底面半径是3分米，它的表面积是 ______ 平方分米。
三、计算题（本大题有5小题，每小题4分，共20分）1、计算下列各式的值：•(1)(3.25+4.75−6.5)•(2)(34−18+12)2、解方程：•(1)(x+3.5=10.5)•(2)(2x−4=6)3、题目：一个长方形的长是12厘米，宽是5厘米，求这个长方形的周长。
2024年广东省小学五年级上学期期中英语试卷与参考答案
2024年广东省英语小学五年级上学期期中自测试卷与参考答案一、听力部分（本大题有12小题，每小题2分，共24分）1、Listen to the dialogue and choose the correct answer.A. What is the weather like today?B. Where is Tom going to spend his vacation?C. How are they going to travel to the beach?Answer: BExplanation: In the dialogue, the speaker asks Tom where he is going to spend his vacation, indicating that the topic is about Tom’s vacation plans.2、Listen to the question and select the appropriate response. Question: How many apples does the girl have?A. Five.B. Four.C. Three.Answer: BExplanation: The correct response should be based on the number of apples the girl has. Since the correct answer is “Four,” option B is the appropriate response.3.Listen to the dialogue and answer the question.W: Hello, John. How was your science project?M: It was great, Mrs. Smith. We learned a lot about the solar system.Q: What subject did John talk about with Mrs. Smith?A: The solar system.B: Mathematics.C: History.D: Music.Answer: AExplanation: The question asks about the subject John discussed with Mrs. Smith. In the dialogue, John mentions “the solar system,” which is a topic related to science, not mathematics, history, or music.4.Listen to the short passage and complete the following sentence with the missing word.The dog is very friendly. It loves to play with children. Every afternoon, it goes to the park with its owner, Tom. They both enjoy running and playing fetch. The dog is named Max.Q: What does the dog do every afternoon?A: Visits the vet.B: Plays fetch.C: Sleeps.D: Eats.Answer: BExplanation: The question asks what the dog does every afternoon. According to the passage, the dog goes to the park with its owner, Tom, and they both enjoy running and playing fetch. Therefore, the correct an swer is “plays fetch.”5、Listen to the dialogue and answer the question.A. What is the weather like today?B. What are they planning to do this afternoon?C. How long will they stay at the park?Answer: BExplanation: The question asks about their plans for the afternoon. In the dialogue, one person says, “Let’s go to the park this afternoon. The weather is supposed to be nice.”6、Listen to the short passage and choose the correct answer.A. The library is open from 9 am to 5 pm on weekdays.B. The library is closed on weekends.C. You need to show your student ID to borrow books.Answer: AExplanation: The passage mentions that the library hours are from 9 am to 5 pm on weekdays, which corresponds to option A. The other options are not mentioned in the passage.7、Listen to the dialogue and answer the question.A. What is the weather like today?B. How many apples does the boy have?C. What time is it now?Answer: BExplanation: The dialogue mentions “I have three apples,” which indicates the boy has three apples. The other options are not mentioned in the dialogue.8、Listen to the story and complete the sentence with the missing word. The cat sat on the mat and watched the birds (1)________.A. flyB. are flyingC. flewAnswer: AExplanation: The sentence is in the present continuous tense, indicating an action happening now. The correct form to complete the sentence is “fly,” which is the simple present tense form of the verb “to fly.” The other options are either in the past tense or not suitable for the continuous tense context.9.Listen to the conversation and choose the best answer.A. The boy is playing soccer.B. The girl is swimming.C. They are going to the park.Answer: BExplanation: The dialogue is about two children discussing theirafter-school activities. The girl mentions she is going to swim, which makesoption B the correct answer.10.Listen to the short passage and answer the question.Question: What is the main topic of the passage?A. The importance of exercise.B. The benefits of reading.C. The history of space exploration.Answer: AExplanation: The passage focuses on the importance of physical exercise for children, including the benefits it has on their health and well-being. Therefore, option A is the correct answer.11.You will hear a short conversation between two students. Listen carefully and answer the following question.What are the students discussing?A. Their favorite subject.B. The weather.C. Their weekend plans.Answer: BExplanation: In the conversation, the students are discussing the weather. They talk about how it’s sunny and warm outside.12.You will hear a short dialogue between a teacher and a student. Listen carefully and answer the following question.Why does the student need to talk to the teacher?A. To ask for help with homework.B. To apologize for being late.C. To report a friend’s absence.Answer: AExplanation: In the dialogue, the student asks the teacher for help with homework. The student mentions that they have a lot of questions about the assignment.二、选择题（本大题有12小题，每小题2分，共24分）1、What is the plural form of the word “child”?A)childrenB)childrenC)childsD)childesAnswer: B) childrenExplanation: The plural form of “child” is “children,” which is why option B is the correct answer. The other options are incorrect because they do not follow the standard English pluralization rules.2、Which of the following sentences is correct?A)She have a new bike.B)He has a new bike.C)He have new bike.D)She has new bike.Answer: B) He has a new bike.Explanation: The correct sentence is B) “He has a new bike.” The present simple tense for the verb “have” is “has” when used with third-person singular subjects like “he” or “she.” The other options have incorrect verb conjugations or missing articles.3、Choose the correct word to complete the sentence.The cat is very________and always keeps us entertained.A. lazyB. cleverC. boringD. kindAnswer: BExplanation: The sentence describes the cat as someone or something that keeps us entertained. Among the options, “clever” fits best in the context, indicating that the cat is smart and capable of amusing us.4、Select the sentence that correctly uses the word “although.”A. She was tired, but she continued to work.B. She was tired, so she continued to work.C. Although she was tired, she continued to work.D. She was tired, and she continued to work.Answer: CExplanation: The word “although” is a conjunction used to introduce asubordinate clause that contrasts with the main clause. In option C, “although” is correctly placed to show the contrast between th e cat’s tiredness and her continued activity.5、I usually go to school_______foot.A. onB. byC. with答案：A解析：本题考查介词。
2024年山东省德州市小学五年级上学期期中英语试卷与参考答案
2024年山东省德州市英语小学五年级上学期期中自测试卷与参考答案一、听力部分（本大题有12小题，每小题2分，共24分）1、What are the two subjects the student likes most in school?A. Math and scienceB. History and musicC. Art and physical educationD. English and geographyAnswer: CExplanation: The student mentions that they enjoy art and physical education the most, so the correct answer is C. Art and physical education.2、Listen to the conversation between a teacher and a student about the weekend plans.Teacher: “How do you plan to spend your weekend, Tom?”Tom: “Well, I’m going to visit my grandparents on Saturday morning and then go to the park with my friends in the afternoon.”What is Tom’s plan for Saturday afternoon?A. Visiting his grandparentsB. Going to the park with friendsC. Studying for a testD. Watching movies at homeAnswer: BExplanation: In the conversation, Tom specifically mentions that he will go to the park with his friends in the afternoon, making option B the correct answer.3、听力原文：W: Hi, Tom. How was your weekend?M: Oh, it was great! I went to the park with my family and we played soccer. It was sunny and we had a lot of fun.Questions:What did Tom do on the weekend?A. He played soccer with his friends.B. He went to the park with his family.C. He watched a movie at home.Answer: BExplanation: The conversation clearly states that Tom went to the park with his family to play soccer, making option B the correct answer.4、听力原文：W: Hey, John. Did you finish your science project for school?M: Yeah, I finished it yesterday. I built a model of a solar system and it turned out really well. My teacher was impressed!Questions:What did John do for his science project?A. He read a book about space.B. He built a model of a solar system.C. He drew a picture of the solar system.Answer: BExplanation: John explicitly mentions in the conversation that he built a model of a solar system for his science project, making option B the correct answer.5、Question: Listen to the conversation and answer the following question. What is the weather like today?A. sunnyB. cloudyC. rainyAnswer: C. rainyExplanation: The conversation goes like this:Person A: “Did you check the weather forecast today?”Person B: “Yes, it’s going to be rainy in the afternoon.”The correct answer is C because the conversation clearly states that it will be rainy in the afternoon.6、Question: Listen to the dialogue and choose the correct answer to complete the following sentence.John and his friends are planning to go to the park. They will go thereat_______o’clock.A. 9B. 10C. 11Answer: B. 10Explanation: The dialogue goes like this:John: “Hey, are you guys planning to go to the park today?”Friend 1: “Yes, we are! What time do you think is good?”John: “How about 10o’clock?”The correct answer is B because John suggests going to the park at 10 o’clock.7.Listen to the dialogue and choose the best answer to the question.A: How old is Tom?B: He is ________.1.eight years old2.nine years old3.ten years oldAnswer: 2Explanation: The correct answer is “nine years old” because in the dialogue, Tom’s mother mentioned that he is in the fifth grade, which means he is nine years old.8.Listen to the passage and answer the question.Passage: The school is planning a sports day for next Saturday. There will be various competitions like running, jumping, and swimming. Students areencouraged to participate and show their talents. The event will start at 8:00 a.m. and end at 12:00 p.m.Question: When will the sports day start?1.7:00 a.m.2.8:00 a.m.3.9:00 a.m.Answer: 2Explanation: The correct answer is “8:00 a.m.” because the passage clearly states that the sports day will start at 8:00 a.m.9、What is Sarah’s favorite subject in school?•A) Math•B) Science•C) English•D) ArtAnswer: C) EnglishExplanation: In the listening, Sarah mentions that she enjoys reading stories and writing essays, which indicates her preference for English class.10、Where does Mr. Thompson say the class field trip will be next month?•A) To the science museum•B) To the zoo•C) To the art gallery•D) To the botanical gardenAnswer: A) To the science museumExplanation: During the listening, Mr. Thompson explains that the class will visit the science museum next month to learn more about dinosaurs and space, which students have been studying in class.11、Listen to the dialogue between two friends talking about their weekend plans. What is Tom going to do on Saturday?A. Go to the parkB. Visit his grandparentsC. Stay at homeAnswer: B. Visit his grandparentsExplanation: In the dialogue, Tom mentions that he will be busy on Saturday because he’s visiting his grandparents.12、Listen to the short passage about a girl’s day at school. What subject does she say she enjoys the most?A. MathB. ArtC. ScienceAnswer: C. ScienceExplanation: During the passage, the girl talks about her day and specifically mentions that her favorite part was the science experiment they did in class, indicating that Science is her favorite subject.二、选择题（本大题有12小题，每小题2分，共24分）1、What is the capital city of France?A. LondonB. ParisC. RomeD. BerlinAnswer: BExplanation: The capital city of France is Paris. London is the capital of the United Kingdom, Rome is the capital of Italy, and Berlin is the capital of Germany.2、Which of the following words is an adjective?A. RunB. HappyC. RunningD. HappinessAnswer: BExplanation: “Happy” is an adjective because it describes a quality or state of being. “Run” is a verb, “Running” is a gerund, and “Happiness” is a noun.3、Wh ich of the following words is a synonym for “big”?A) tinyB) smallC) largeD) little*Answer: C) large*Explanation: A synonym is a word that has the same or nearly the same meaning as another word. In this case, “large” is a synonym for “big,” while “tiny,” “small,” and “little” are antonyms (opposites) of “big.”4、Choose the correct sentence to express that Sarah is playing soccer right now.A) Sarah plays soccer.B) Sarah will play soccer.C) Sarah is playing soccer.D) Sarah played soccer.*Answer: C) Sarah is playing soccer.*Explanation: The present continuous tense is used to talk about an action happening at the moment of speaking. It is formed with the subject + “is/are” + verb in -ing form. So, “Sarah is playing soccer” correctly indic ates that she is currently engaged in the activity. Option A uses the simple present tense, which would be used for habitual actions; option B uses the future simple tense, indicating an action that will happen later; and option D uses the simple past tense, which refers to a completed action in the past.5、Choose the correct word to complete the sentence.The cat is sitting on the_and looking out the window.A. tableB. chairC. bedD. floorAnswer: BExplanation: The correct answer is “chair” because it i s common for a cat to sit on a chair, looking out the window. The other options do not fit as well in this context.6、Select the word that has a different meaning from the others.A. climbB. jumpC. swimD. flyAnswer: DExplanation: The word “fly” is different from the other options because it refers to moving through the air, which is not what “climb,” “jump,” or “swim” imply. The other words describe actions that involve moving up or over an object.7、Which sentence is correct?A. She don’t like a pples.B. He doesn’t likes oranges.C. They doesn’t eat bananas.D. We don’t like pears.Answer: DExplanation: The correct answer is D because when using the verb ‘like’ in the negative form, you should use ‘don’t’ for the first person plural (we) and second person singular/plural (you). For third-person singular subjects (he, she, it), you should use ‘doesn’t’. Options A, B, and C all contain subject-verb agreement errors.8、What do you usually do after school?A. I usually play football.B. I usually playing football.C. I usually played football.D. I usually will play football.Answer: AExplanation: The correct answer is A because when talking about habitual actions or routines, we use the simple present tense. Option B uses the present continuous tense which is not suitable for regular activities. Option C uses the past tense, which is incorrect as it refers to a specific action in the past, not a habit. Option D uses the future tense, which is also inappropriate for describing what you usually do.9、Choose the correct word to complete the sentence.The cat is sleeping in the _.A. boxB. houseC. treeAnswer: A. boxExplanation: The correct answer is “box” because it is a small enclosed space where the cat can comfortably sleep.10、Select the correct verb form to fill in the blank.The teacher_us a story every Monday.A. tellB. tellsC. toldAnswer: B. tellsExplanation: The correct answer is “tells” because the sentence is in the present tense and the subject “teacher” is third person singular, which requires the present simple tense.11、Choose the correct form of the verb to fill in the blank:The children_______playing in the park.A) is B) are C) was D) wereAnswer: B) areExplanation: The subject “the children” is pl ural, so we need the present tense plural form of the verb “to be,” which is “are.”12、Select the correctly punctuated sentence:A) We went to the zoo, we saw many animals.B) We went to the zoo; we saw many animals.C) We went to the zoo we saw many animals.D) We went to the zoo, and we saw many animals.Answer: D) We went to the zoo, and we saw many animals.Explanation: Option D uses a comma before the conjunction “and” to join two independent clauses, which is correct according to the rules of punctuation. The other options either lack necessary punctuation or use incorrect punctuation marks between independent clauses.三、完型填空（10分）Exercise 3: Cloze TestRead the following passage and choose the best word for each blank from the options given below.Tom was a curious five-year-old boy who loved to explore. One sunny morning, he went on a little adventure to the nearby park with his mom. As they walked through the park, Tom noticed a 1 of birds in the trees. He pointed to his mom and said, “Look, Mom! There are so many birds here!”His mom smiled and replied, “Yes, Tom. Birds come to the park because it’s a great place for them to 2 and feed. Would you like to learn more about birds?”Tom nodded eagerly. His mom showed him a book about birds and they started to read it together. They learned that birds have different colors, sizes, and even different songs. Tom was fascinated by each new fact.After reading the book, Tom decided he wanted to 3 a birdhouse. He asked his mom if he could borrow some tools from her workshop. With her help, he carefully put together the pieces and painted the birdhouse a bright blue.The next day, Tom placed the birdhouse near a tree in the park. He couldn’t wait to see the birds come. A few days later, he saw a small bird enter the birdhouse for the first time. He was so happy that he 4 his mom and gave her a big hug.From that day on, Tom visited the park every weekend. He spent hours observing the birds and learning more about them. His love for birds grew even stronger.1.A) varietyB) groupC) collectionD) mixture2.A) nestB) migrateC) singD) communicate3.A) drawB) writeC) buildD) repair4.A) shoutedB) wavedC) huggedD) kissedAnswers:1.B) group2.A) nest3.C) build4.C) hugged四、阅读理解（26分）Reading ComprehensionRead the passage carefully and answer the questions that follow.The Little GardenerIn a small village lived a young boy named Timmy who had a green thumb. He loved plants more than anything else in the world. Every day after school, Timmy would rush home to tend to his little garden. It was not very big, but it was full of colorful flowers, lush green vegetables, and even some fruit trees.Timmy’s favorite time of the day was when the sun started to set. The sky would turn orange and pink, and the breeze would become cooler. This was when Timmy felt most at peace among his plants. He would sit by his flowers and tell them stories about his day at school.One day, a terrible storm hit the village. The wind howled, and the rainpoured down hard. Timmy was worried sick about his little garden. As soon as the storm passed, he ran outside to check on his beloved plants. To his surprise, while some leaves were torn and branches broken, the roots of the plants were strong. They had survived the storm!Timmy learned that even though things might look bad, if you have strong roots—like the ones he had nurtured with love and care—there’s a good chance you can overcome any challenge.Questions:1.What did Timmy do every day after school?2.Why was Timmy worried during the storm?3.What did Timmy learn from the experience with the storm?Answers:1.Timmy rushed home to tend to his little garden.2.Timmy was worried about the condition of his little garden during the storm.3.Timmy learned that having strong roots, like those he had nurtured with love and care, could help overcome challenges.This passage and set of questions are designed to test basic reading comprehension skills, including the ability to understand what is explicitly stated in the text and to draw simple inferences from the story.五、写作题（16分）Write a short story about a day you remember well. In your story, include the following details:1.The date and season of the day.2.The place where you were and why you were there.3.At least two activities you did and why you enjoyed them.4.One thing that surprised you or made you happy.Example:Title: My Birthday AdventureOn a sunny September day, I celebrated my 10th birthday at the Grand Park. My family and friends gathered there to make the day special.We started with a picnic. My mom had prepared delicious sandwiches and fruits. While we were eating, we played games like charades and hide and seek. I enjoyed the games because they made me laugh and I got to spend quality time with my friends.After lunch, we went on a hike. The trail was beautiful, and we saw many colorful birds and flowers. I was so excited to find a rare butterfly. My friend, Sarah, and I chased each other and laughed the whole time.Suddenly, it started to rain. We took cover under a big tree and watched the rain pour down. It was magical to see the raindrops on our faces and the rainbow that appeared in the sky. That moment made me feel so happy and grateful for the simple joys of life.At the end of the day, we lit sparklers and watched them twirl in the air.I felt a warm sense of happiness and love for my family and friends.This day is one I will always remember because it was filled with fun, laughter, and precious moments with the people I care about.解析：1.故事以一个阳光明媚的九月日子为背景，符合题目要求。
2024年河北省石家庄市小学四年级上学期期中语文试卷与参考答案
2024年河北省石家庄市语文小学四年级上学期期中自测试卷(答案在后面)一、基础知识与积累（本大题有9小题，每小题4分，共36分）1、下列词语中，哪一个字的拼音是错误的？请把序号填写在括号内。
A. 预(yù)习B. 穿梭(suō)C. 薄(báo)雾D. 倾(qīng)听2、给下面的句子选择最恰当的关联词填空，并将正确答案写在横线上。
（）你坚持每天阅读，你的写作水平（）会有所提高。
A. 因为…所以…B. 只要…就…C. 如果…那么…D. 不但…而且…3、（根据课文内容填空）《秋天的雨》这篇课文中，作者用“XXX”来形容秋天的雨，这句话表达了秋天的雨的特点。
4、（选择题）在《长城》这篇课文中，下列哪个词用来形容长城的坚固？A. 壮丽B. 巍峨C. 坚固D. 长远5、选择正确的读音。
（4分）•橙子（chéng zǐ / dèng zǐ）•背诵（bèi sòng / bèi sàng）•瀑布（pùbù / bào bù）•捕鱼（bǔyú / pǔ yú）6、找出下列词语中的错别字，并改正。
（4分）•1）飞鸿驿站（）•2）花言巧语（）•3）水滴石川（）•4）金碧辉煌（）7、下列词语中，加点字读音与其他词语不同的一项是：A. 池塘（chí táng）池水（chí shuǐ）池畔（chí pàn）B. 森林（sēn lín）森严（sēn yán）森然（sēn rán）C. 河流（hé liú）河床（hé cháng）河畔（hé pàn）D. 书包（shū bāo）书桌（shū zhuō）书页（shū yè）8、下列句子中，没有语病的一项是：A. 小明不仅成绩好，还热心帮助同学。
2024年山东省济南市小学六年级上学期期中语文试卷及答案指导
2024年山东省济南市语文小学六年级上学期期中自测试卷(答案在后面)一、基础知识与积累（本大题有9小题，每小题4分，共36分）1、题干：下列词语中，加点字读音与其他三项不同的一项是：A. 神秘（shén mì）B. 真实（zhēn shí）C. 诺言（nuò yán）D. 震撼（zhèn h àn）2、题干：下列句子中，没有语病的一项是：A. 我们的校园环境优美，是学生们学习和生活的乐园。
B. 为了实现中华民族的伟大复兴，我们要努力学习，提高自己的综合素质。
C. 这次比赛，我们队虽然输了，但我们没有失去信心。
D. 她的声音很好听，可是唱歌的水平却不高。
3、下列词语中，字形和字音都完全正确的一项是：A. 恣意妄为（zìyì wàng wéi）B. 举世闻名（jǔshì wén míng）C. 画龙点睛（huàlóng diǎn jīng）D. 奋不顾身（fèn bù gù shēn）4、下列句子中，没有语病的一项是：A. 通过这次比赛，我深刻认识到团队合作的重要性。
B. 他不仅学习成绩优秀，而且具有很好的组织协调能力。
C. 在这次活动中，我学到了很多知识，也提高了自己的能力。
D. 他的成绩之所以能取得如此优异，是因为他平时非常努力。
5、下列词语中，加点字的注音全部正确的一项是：A. 悠闲（yōu xián）漫步（màn bù）纷飞（fēn fēi）B. 恍若（huǎng ruò）端详（duān xiáng）突兀（tū wù）C. 陶醉（táo zuì）沉着（chén zhuó）潇洒（xiāo sǎ）D. 倾斜（qīng xié）融化（róng huà）混沌（hùn dùn）6、下列句子中，没有语病且表达最准确的一项是：A. 学校为了提高学生的综合素质，开展了丰富多彩的课外活动。
2024年福建省福州市初三上学期期中化学试卷及答案指导
2024年福建省福州市化学初三上学期期中自测试卷(答案在后面)一、单项选择题（本大题有12小题，每小题3分，共36分）1、下列物质中，属于纯净物的是：A、空气B、矿泉水C、食盐D、氧气2、下列物质在常温下不属于固态的是：A、冰B、铁C、硫磺D、氢气3、下列物质中，不属于酸的是：A、硫酸（H2SO4）B、氯化钠（NaCl）C、醋酸（CH3COOH）D、氢氧化钠（NaOH）4、下列关于化学反应速率的说法中，错误的是：B、温度升高，反应速率加快C、使用催化剂可以加快反应速率D、固体物质的表面积越小，反应速率越快5、下列物质属于氧化物的是：A、H2OB、NaOHC、CH4D、CO26、在下列化学反应中，不属于置换反应的是：A、Fe + CuSO4 → FeSO4 + CuB、Zn + 2HCl → ZnCl2 + H2↑C、2H2O → 2H2↑ + O2↑D、CaCO3 → CaO + CO2↑7、下列物质中，不属于酸的是（）A. 盐酸B. 氢氧化钠C. 硫酸D. 碳酸8、下列关于化学反应速率的说法中，正确的是（）A. 反应速率越快，反应时间越长B. 反应速率越快，反应时间越短D. 反应时间越短，反应速率越快9、下列关于化学反应的叙述中，正确的是：A、所有化学反应都是可逆的B、化学反应的速率只与反应物的浓度有关C、催化剂可以改变反应的速率，但不改变反应的平衡位置D、所有化学反应都会产生能量 10、下列物质中，属于非电解质的是：A、NaCl（氯化钠）B、HCl（氯化氢）C、C6H12O6（葡萄糖）D、KOH（氢氧化钾）11、下列物质中，不属于酸的是：A. 盐酸B. 硫酸C. 氢氧化钠D. 碳酸12、下列反应中，不属于置换反应的是：A. Zn + CuSO4 → ZnSO4 + CuB. Fe + 2HCl → FeCl2 + H2↑C. 2KClO3 → 2KCl + 3O2↑D. H2 + Cl2 → 2HCl二、多项选择题（本大题有3小题，每小题3分，共9分）1、下列物质中，属于化合物的是：A、氧气（O₂）B、水（H₂O）C、二氧化碳（CO₂）D、氢气（H₂）2、下列关于化学实验的说法正确的是：A、在实验室中，用pH试纸测定溶液的pH值时，应将试纸浸入溶液中B、进行过滤实验时，漏斗的下端应紧靠烧杯的内壁C、在加热试管中的液体时，应使用酒精灯的外焰加热D、实验室中的药品不能直接用手接触3、下列物质中，属于纯净物的是（）A、矿泉水B、空气C、蒸馏水D、石灰水三、填空题（本大题有5小题，每小题6分，共30分）1、在实验室中，常用水浴加热的方法进行加热，这是因为水的沸点是_______℃。
2024-2025学年江苏省无锡市小学五年级数学上册期中素质自测试卷及答案
2024-2025学年江苏省无锡市小学五年级数学上册期中素质自测试卷班级：________________ 学号：________________ 姓名：______________一、单选题（每题3分）1.一个数的因数的个数是（）。
A. 无限的B. 有限的C. 有时无限有时有限答案：B2.0.5×8和8×0.5两个算式相比，（）。
A. 结果相同，意义不同B. 结果相同，意义也相同C. 结果和意义都不同答案：A3.下列各数中，与0.5相等的数是（）。
A. 0.50B. 0.05C. 5.0答案：A4.一个三角形的底是10cm，高是8cm，它的面积是（）。
A. 40cmB. 80cm²C. 40cm²答案：C5.一个平行四边形的底是12厘米，高是底的2倍，它的面积是（）。
A. 24平方厘米B. 144平方厘米C. 288平方厘米答案：B二、多选题（每题4分）1.下列说法中，正确的有（）A. 平行四边形的对边相等B. 两个梯形一定能拼成一个平行四边形C. 两个底角为45°的等腰三角形一定是锐角三角形D. 圆的周长是直径的π倍答案：A、D解析：A项，平行四边形的性质是对边相等，所以A项正确；B项，只有当两个梯形完全相同时，它们才能拼成一个平行四边形，所以B项错误；C项，等腰三角形的两个底角为45°，则顶角为90°，所以它是直角三角形，不是锐角三角形，C 项错误；D项，圆的周长C和直径d之间的关系为C = πd，所以D项正确。
2.在下面的图形中，对称轴最多的是（）A. 等腰三角形B. 长方形C. 正方形D. 圆答案：C、D解析：等腰三角形有一条对称轴（底边上的高所在的直线），长方形有两条对称轴（对边中点的连线），正方形有四条对称轴（两条对角线及两组对边中点的连线），圆有无数条对称轴（经过圆心的任意直线）。
因此，对称轴最多的是正方形和圆。
2024-2025学年河南省漯河市初三物理上册期中质量自测试卷及答案
2024-2025学年河南省漯河市初三物理上册期中质量自测试卷班级：________________ 学号：________________ 姓名：______________一、单选题（每题3分）1.下列现象中，不能说明分子永不停息地做无规则运动的是( )A. 打开香水瓶盖后，满屋充满香味B. 阳光下，看到灰尘在空中飞舞C. 糖放入水中后，整杯水都变甜了D. 衣箱里的樟脑丸变小，衣柜里充满了樟脑丸的气味答案：B解析：A、打开香水瓶盖后，满屋充满香味，是气体分子的扩散，属于分子的运动，故A不符合题意；B、灰尘在空中飞舞，是物体的机械运动，不是分子的运动，故B符合题意；C、糖放入水中后，整杯水都变甜了，是糖分子的扩散，属于分子的运动，故C不符合题意；D、衣箱里的樟脑丸变小，衣柜里充满了樟脑丸的气味，是固体樟脑丸的升华现象，升华后的樟脑蒸气分子在空气中做无规则运动，属于分子的运动，故D不符合题意。
2.下列现象中，属于光的折射现象的是( )A. 平静的湖面上可以看到蓝天白云B. 游泳池注水后，看上去好像变浅了C. 阳光透过树叶间的缝隙射到地面上，形成圆形光斑D. 在灯光下，物体的后面有影子答案：B解析：A、平静的湖面上可以看到蓝天白云属于平面镜成像，是由于光的反射形成的，不符合题意；B、游泳池注水后，看上去好像变浅了，是由于从池底反射的光从水中斜射入空气中时发生折射而形成的，符合题意；C、阳光透过树叶间的缝隙射到地面上，形成圆形光斑，这就是小孔成像，是太阳所成的像，是因为光在同种均匀物质中沿直线传播，不符合题意；D、在灯光下，物体的后面有影子，是因为光是沿直线传播的，物体挡住了灯光，不符合题意。
3.小明在学习“从粒子到宇宙”的知识后，有下列认识，其中正确的是( )A. 雪花漫天飞舞说明分子在做无规则运动B. 宇宙是一个有层次的天体结构系统，地球是宇宙的中心C. 电子的尺度比原子的尺度大D. 将两个表面光滑的铅块相互紧压后，它们会黏在一起，说明分子间存在引力答案：D解析：A、雪花漫天飞舞，是宏观物体的运动，属于机械运动，不是分子在做无规则运动，故A错误；B、宇宙是一个有层次的天体结构系统，地球并不是宇宙的中心，故B错误；C、原子核和电子构成原子，电子的尺度小于原子的尺度，故C错误；D、将两个表面光滑的铅块相互紧压后，它们会黏在一起，说明分子间存在引力，故D正确。
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2019-2020学年第一学期五年级数学期中质量检测试卷
一、填空（每题2分，共18分）
1、0.28×4.9的积是（）位小数，数确到个位是（）。
2、1里面有（）个十分之一，2.7里面有（）个十分之一。
3、6.64÷3.3的商是（），保留两位小数约是（）。
4、把34.65÷0.25转化成除数是整数的除法算式是（），根据是（）。
6、119. 6÷23，商的最高位在( )位上，所得的商是( )。
7、4. 72、4.72、4.727这三个数中，最大的数是( )，最小的数是( )。
8、小明2分钟跑了200米，平均每分钟跑（）米，跑1米需要（）分钟。
9、9与9. 00大小相等，表示的精确度( )。
二、判断，对的在括号里打“√”，错的打“×”（每题2分，共16分）。
1、循环小数一定是无限小数，所以无限小数也一定是循环小数。
（）
2、一个数的2.5倍，比原数大。
（）
3、近似数5和5.0比较，5.0比5精确。
（）
4、0.8除以一个小数，所得的商一定比0.8大。
( )
6、36.9÷0.25×4=36.9÷（0.25×4）。
（）
7、观察一个物体时，最多能看到两个面。
（）
8、0.244444可以记作0.24(。
)。
（）
三、选择，把正确答案前的字母填在本题的括号里。
1、在计算0.8÷0.24时，被除数和除数都要同时（）。
A、不扩大
B、扩大10倍
C、扩大100倍
2、下面各式的结果大于1的算式是（）。
A、1÷0.44
B、0.44÷1
C、0.44×1
3、计算2.5×3.7+2.5×0.3的结果时，可用（）使计算简便。
A、乘法交换律
B、乘法分配律
C、乘法结合律
4、小红的妈妈将5千克香油分装在一些玻璃瓶里，每个瓶最多可装0.8千克，妈妈需要准备（）个瓶。
A、6
B、6.25
C、7
5、下面的数最小的是（）。
A、2.070
B、2.07 1
C、2.0 76
D、2.077
四、计算（共39分）
1、直接写出下面各题的得数。
（每题1分，共11分。
）
0.2+0. 78= 0. 99 ×1. 25×8= 1.8×0.3= 0.01÷0.1=
0.37×0÷9.54= 0.27÷0.03= 1.8÷0.3= 500×0.2=
1.25×17×0.8= 1.25×0.8= 0.56÷0.4=
2、用竖式计算。
（每题2分，共12分。
有★符号的要求验算）
1.62÷1.5= ★23.94÷252=
2.6×1.08= ★0.54×1.35=
3、计算下面各题，能简算的要简算。
（每题3分，共12分）
3.47 +
4.9 + 6.53 +
5.1 0.25×4÷0. 2.5×4
9.07-22.78÷3.4 4.8×99+4.8
4、列式计算。
（每题2分，共4分）
（1）-个数的8倍比这个数的3 倍多40.5，求这个数。
2）2.5除1.1的4倍，结果是多少？
五、解决问题。
（共19分）
1、小明登上山顶之后沿原路下山，上下山共用4小时，已知上山用了2.4小时下山的速度是每小时7.5千米，求上山的速度。
（4分）
2、、一间教室，长7.5米，长是宽的1. 25倍，里面坐48个学生，平均每个学生占地多少平方米？（得数保留两位小数）（5分）
3、服装厂购进一批布，原来做一套女装用布2.5米，可以做35套。
后来改进技术每套女装节约用布0.1米，这批布现在最多可以做几套女装？（5分）
4、某厂有一堆煤，原计划每天烧1.2吨，可以烧25天。
由于节约用煤，实际烧了30天，实际每天烧煤多少吨？（5分）。