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期中复习卷(含答案)-2023-2024学年部编版道德与法治八年级上册

2023-2024年道德与法治八年级上册期中综合训练一、单选题（本大题共15小题，共45分）1．社会关系从建立的基础可分为血缘关系、地缘关系和业缘关系。

下列属于地缘关系的是（）A．小雯和爸妈一起看电影《万里归途》B．小伟和同学去图书馆C．小莉的爸爸与邻居老赵下象棋D．小启和老师讨论法治题目2．人的身份是在社会关系确定的，在不同的社会关系中，我们有着不同的身份。

下列选项对应的社会关系正确的是（）①恰同学少年,风华正茂——业缘关系②老乡见老乡,两眼泪汪汪——血缘关系③望子成龙，望女成凤——血缘关系④相知无远近，千里尚为邻——地缘关系A．①③④B．①②④C．②③④D．①②③3．爱因斯坦曾说；“我们吃别人种的粮食，穿别人缝的衣服，住别人造的房子。

我们的大部分知识和信仰都是通过别人创造的语言由别人传授给我们的。

”这说明了（）A．个人可以离开社会而存在和发展B．我们要学会依赖他人和社会C．社会的发展需要每个人付出巨大代价D．每个人都从社会中获得物质支持和精神滋养4．“打开网页，就等于与世界握手”，这句话表明（）A．上网什么都可以做B．网络就是现在所有人的生活必需C．网络世界生活很丰富，很诱人D．有了网络，可以为社会生活提供方便，更有效率5．网民、网校、网上的物、网上阅读、电子商务等词语已经成为我们的日常用语。

这表明（）A．网络扩大了我们交往的领域、对象B．网络是一把双刃剑，具有两面性C．网络交往是我们生活的全部D．不管什么人，只要上网就会成瘾6．面对下边漫画中的现象，我们应该（）①相信时来运转，按要求去领奖②无关个人安危，可以置之不理③保持警惕意识，仔细辨别信息④及时提醒他人，必要时选择报警A．①②B．①③C．②④D．③④7．中学生反电信网络诈骗宣传小组走进社区，向居民宣传反诈骗知识。

该活动能够（）①杜绝居民遭遇电信网络诈骗②增强居民自我防范的意识③增进居民对反诈骗知识的了解④形成文明有礼的社会风尚A．①②B．①④C．②③D．③④8．青春并不意味着肆意放纵，总有一些基本规则不能违反，一些基本界限不能逾越。

2024-2025学年外研版小学三年级上学期期中英语试卷与参考答案

2024-2025学年外研版英语小学三年级上学期期中复习试卷与参考答案一、听力部分（本大题有12小题，每小题2分，共24分）1、听力材料：A. Hello, how are you?B. I’m fine, thank you. And you?C. I’m not good. I have a cold.Question: How is the speaker in option B feeling?Answer: A解析：在选项B中，说话者说“I’m fine, thank you. And you?”，表示他感觉很好。

因此，答案是A。

2、听力材料：A. There are three apples on the table.B. There are two cats in the garden.C. There are five birds in the sky.Question: Which sentence is about the number of objects in the sky? Answer: C解析：在选项C中，句子提到“there are five birds in the sky”，表示天空中有五只鸟。

因此，答案是C。

A. It’s sunny.B. It’s rainy.C. It’s windy.Answer: BExplanation: The correct answer is B because the dialogue or text in the listening section likely mentions that it is raining today.4、How many apples does Tom have?A. 5 apples.B. 10 apples.C. 15 apples.Answer: BExplanation: The correct answer is B because the listening section should provide information about the number of apples Tom has, and the dialogue or text should state that Tom has ten apples.5、What is the boy doing in the picture?A. He is eating an apple.B. He is reading a book.C. He is playing with a ball.Answer: BExplanation: The boy in the picture is sitting at a table with a book in his hands, indicating he is reading a book.A. It’s sunny.B. It’s cloudy.C. It’s rainy.Answer: AExplanation: The teacher says, “Look outside, the sky is clear and bright. It’sa sunny day today.” Therefore, the correct answer is sunny.7、Listen to the conversation and choose the correct answer.A. The boy wants to play soccer.B. The girl wants to play basketball.C. They both want to go to the park.Answer: BExplanation: The conversation goes like this:Boy: Hey, do you want to play soccer with me?Girl: No, I’d rather play basketball.The girl expresses her preference for basketball, so the correct answer is B.8、Listen to the question and choose the correct answer.Question: What is the weather like today?A. It’s sunny.B. It’s rainy.C. It’s cloudy.Answer: BExplanation: The question asks about the weather. In the dialogue, the speaker says, “It’s raining cats and dogs outside.” This implies t hat it is raining heavily, so the correct answer is B.9.You hear a conversation between two friends at a playground. The first person says, “Hey, look at that kite in the sky. It’s so colorful!”A. What are they talking about?1.A kite2.A ball3.A bikeAnswer: 1. A kiteExplanation: The conversation explicitly mentions a kite, which is the focus of their discussion.10.Listen to a short dialogue between a teacher and a student. The teacher asks, “How was your weekend, Tom?”A. What does the teacher ask Tom about?1.His homework2.His weekend activities3.His school projectsAnswer: 2. His weekend activitiesExplanation: The teacher’s question, “How was your weekend,” directly inquires about Tom’s experiences over the weekend, not about his homework or school projects.11.Listen to the dialogue and choose the correct answer.A. What’s the weather like today?B. It’s a sunny day.C. I’m going to the park.Answer: BExplanation: The question asks about the weather. The dialogue likely mentions that it’s a sunny day, so the correct answer is B.12.Listen to the story and answer the question.Q: Where does the story take place?A. In a schoolB. At the beachC. In a forestAnswer: CExplanation: The story is likely about an adventure in a forest. Therefore, the correct answer is C.二、选择题（本大题有12小题，每小题2分，共24分）1、What is the weather like today?A. It’s sunny.B. It’s rainy.C. It’s windy.Answer: BExplanation: The correct answer is “It’s rainy” because the question asksfor the weather today, and option B correctly identifies it as rainy. Options A and C describe different weather conditions but do not match the question’s prompt.2、My mother buys me a new book every weekend. This weekend, she will buy me _______.A. aB. anC. theAnswer: AExplanation: The correct answer is “a” because it is used to indicate an indefinite article before a singular noun that begins with a consonant sound. “New book” starts with the consonant sound /n/, so “a” is the appropriate article to use. Option B, “an,” is used before vowels or vowel sounds, and option C, “the,” is used to refer to something specific that is already known or mentioned.3、My birthday is in __________.A. June 21stB. July 12thC. August 25thAnswer: BExplanation: The question is asking for the month of the student’s birthday. The correct answer is July 12th.4、There are__________apples on the table.A. 5B. 10C. 15Answer: BExplanation: The question is asking for the number of apples on the table. The correct answer is 10.5、Choose the correct word to complete the sentence.Tom is very__________in English.A. goodB. interestingC. happyAnswer: AExplanation: The correct ans wer is “good” because it means that Tom is skilled or has a high level of proficiency in English. “Interesting” and “happy” are not appropriate in this context.6、Match the phrases with their correct meanings.A. I have a pen.1.I have a pencil.B. I have a pencil.2.I have a book.C. I have a book.3.I have a pen.Answer: A-3, B-1, C-2Explanation: The phrases should be matched with their corresponding items. “I have a pen” matches with “I have a pencil” (B-1), “I have a pencil” matches with “I have a book” (B-2), and “I have a book” matches with “I have a pen” (C-3).7、What is the animal that lives in the forest?A. FishB. ElephantC. ChickenD. SharkAnswer: BExplanation: The correct answer is “Elephant” because elephants are commonly found in forests. The other options are animals that typically live in different habitats. Fish live in water, chickens are often domesticated and can live in various environments, and sharks are found in oceans.8、Which color is the sky at night?A. RedB. BlueC. YellowD. BlackAnswer: DExplanation: The correct answer is “Black” because at night, the sky appears dark as the Earth’s atmosphere absorbs the sunlight, making the sky seem black. The other colors mentioned are typically associated with the sky during the day.9.Choose the correct word to complete the sentence.The cat is sleeping on the __________.A. floorB. tableC. chairAnswer: AExplanation: The correct answer is “floor” because it is the most common place where a cat would sleep. “Table” and “chair” are less likely as they are typically used for sitting or placing objects on.10.Select the word that does not belong in the following list.A. appleB. bananaC. pencilD. eggAnswer: CExplanation: “Apple,” “banana,” and “egg” are all types of food. “Pencil” is a writing instrument and does not belong with the other items listed, which are all edible.11.Choose the correct word to complete the sentence.A. playB. playedC. playingD. to playThe teacher asked us_______(A) at the park today.Answer: CExplanation: The sentence is in the simple past tense, so we need the past simple form of the verb. “Playing” is the gerund form, which is not appropriate here. “To play” is the infinitive form, and “play” is the base form. The correct choice is “played,” which is the past simple form.12.Select the word that does not belong in the group.A. happyB. sadC. hungryD. happyThe children are feeling_______(D) because it’s lunchtime.Answer: DExplanation: The word “happy” is repeated in the options, which means it does not belong in the group of words that describe different feelings. “Happy,” “sad,” and “hungry” are all adjectives that describe different emotions, while “happy” is repeated, making it the odd one out.三、完型填空（10分）Task 3: Cloze TestRead the passage and choose the best word for each blank from the options given below.Last weekend, Tom went to the [1] park with his family. They decided to have a picnic because the weather was [2]. As they were setting up the blanket, they saw a [3].1.A. large B. small C. beautiful D. nice2.A. sunny B. cloudy C. windy D. rainy3.A. dog B. cat C. bird D. fishTom and his family [4] the dog over to their blanket. The dog [5] them to play fetch.4.A. followed B. brought C. called D. watched5.A. invited B. challenged C. taught D. taughtAnswers:1.D. nice2.A. sunny3.A. dog4.A. followed5.B. challenged四、阅读理解（26分）Title: My Weekend AdventureOne sunny Saturday morning, Xiao Ming woke up early. He had planned a special adventure for the weekend. His parents were going to visit their grandparents, so he had the whole day to himself. Xiao Ming decided to go on a nature hike in the nearby forest.As he put on his hiking boots and backpack, he felt excited. He took a map of the forest and some snacks. The path was well-marked, and Xiao Ming followed it carefully. He loved the sound of the birds singing and the rustling leaves under his feet. The forest was filled with beautiful trees, flowers, and streams.After walking for about an hour, Xiao Ming came across a small clearing. There was a wooden bench there, and he decided to take a break. He sat down and enjoyed the peacefulness of nature. As he looked around, he noticed something unusual. There was a small, golden bird perched on a low branch. It was beautiful and shiny, with a bright red crest on its head.Xiao Ming was fascinated. He watched the bird for a few minutes, trying to catch a glimpse of its feathers in the sunlight. Suddenly, the bird fluttered its wings and flew towards him. Xiao Ming reached out his hand, and the bird landed on his palm. It was so light and warm.The bird stayed with Xiao Ming for about 10 minutes, and then it flew away. Xiao Ming felt a sense of wonder and happiness. He continued his hike, but now he felt even more connected to nature.Finally, after a few hours, Xiao Ming reached the forest exit. He was tired but happy. He had had an unforgettable adventure. As he walked home, he thought about the golden bird and the beautiful day he had just spent in the forest.Questions:1.Why did Xiao Ming decide to go on a nature hike?2.What did Xiao Ming notice about the bird when he first saw it?3.How did Xiao Ming feel at the end of his adventure?Answers:1.Xiao Ming decided to go on a nature hike because his parents were visiting their grandparents, and he had the whole day to himself.2.Xiao Ming noticed that the bird was small, golden, and had a bright red crest on its head.3.Xiao Ming felt tired but happy at the end of his adventure.五、写作题（16分）Title: My Favorite AnimalInstructions: Write a short passage describing your favorite animal. Include its name, appearance, and why you like it so much. Be creative and use interesting adjectives.Example:My favorite animal is the giraffe. Giraffes are very tall and have long necks. They have brown and white spots all over their bodies, which make them look likethey are wearing a unique pattern. I like giraffes because they are gentle and have a calm nature. They are also very unique and special because no two giraffes have the same spots. In addition, giraffes are the tallest land animals in the world, which is amazing. I enjoy watching them in the zoo and learning more about their fascinating lives.Analysis:This example follows the instructions by describing a favorite animal (giraffe), including its name, appearance (tall, long neck, brown and white spots), and reasons for liking it (gentle, calm nature, unique spots, tallest land animal). The passage is creative and uses adjectives like “unique,” “fascinating,” and “amazing” to enhance the description. The structure is clear and concise, making it easy for the reader to understand the writer’s preference for the giraffe.。

2024年统编版初三上学期期中语文试卷与参考答案

2024年统编版语文初三上学期期中复习试卷(答案在后面)一、积累与运用（本大题有7小题，每小题3分，共21分）1、题干：下列各句中的加点字注音完全正确的一项是：A. 融化（róng huà）沉默（chén mò）轰鸣（hōng míng）B. 草原（cǎo yuán）岩石（yán shí）峰回路转（fēng huí huí zhuǎn）C. 梦魇（mèng yǎn）磕绊（kē bàn）融会贯通（róng huì gòu tōng）D. 淹没（yān mò）融洽（róng qià）息息相关（xīxī xiāng guān）2、题干：下列句子中，没有语病且表达准确的一项是：A. 通过这次参观学习，同学们深刻体会到了我国科技发展的伟大成就。

B. 他不仅学习成绩优秀，而且热爱劳动，是老师心目中的好学生。

C. 为了提高我国在国际上的地位，我们必须大力发展科技和教育。

D. 这种方法对于治疗感冒有显著效果，已经广泛应用于临床。

3、下列句子中，加点字词使用不正确的一项是：A. 他每次见到老师总是谦虚谨慎，不敢有丝毫的懈怠。

B. 望着那座雄伟壮观的大桥，我心中充满了敬意。

C. 经过这次失败，他终于明白了“失败是成功之母”的道理。

D. 在这次比赛中，他充分发挥了自己的实力，为班级赢得了荣誉。

4、下列各句中，没有语病的一项是：A. 为了提高学生的阅读能力，学校决定每周增加一小时的阅读课。

B. 小明在这次数学竞赛中取得了第一名，他的成绩在班级中名列前茅。

C. 通过这次参观，我们不仅了解了我国的历史文化，还增长了知识。

D. 看着那漫天的烟花，我仿佛置身于仙境之中。

5、下列句子中，没有语病且句意明确的一项是：A. 为了提高学生的综合素质，学校决定从下学期开始，每周安排一节传统文化教育课。

七年级上册英语期中复习卷(含答案)

七年级上册英语期中复习过渡单元I.根据句意及首字母提示补全单词1. I can c the books, one, two, three,four, . ten books!2. I g Mrs Lee with "Good morning!"every morning.3. My friend Jean can s "good". G-O-O-D, good!4. That's the b .It's time for class.Let's go!5. Our class teacher asks us to help e other.Ⅱ.用方框中所给单词的适当形式填空need, key, goose, another,funny6. I don't like the red cap. Please show me one.7. Here are two yellow to the lock(锁)of the door.8.Jean to walk her pet dog every afternoon.9. We can get eggs from the three every day.10. It is great to play football with my friends after school.Unit 1I.用括号内所给单词的适当形式填空1. Playing the guitar is one of my (hobby).2. Helen often makes some (mistake)in her homework.3. We learn English, maths, Chinese and other (subject) at school.4. I'd like (make)some new friends in the school.5. Australia and Singapore are two (country).Ⅱ.根据句意及首字母提示补全单词6. The boy is my good friend. Jim Green is his f name.7. Tom and I are in Class Two, so we are c .8. The colour of the two chairs is the s .They are yellow.9. Helen and Alice are bin Beijing,China now.10. Mona can play the piano very well and she is in the schoolb .Unit 2I.用括号内所给单词的适当形式填空1. Susan and Mandy are both the old woman's (grandchild).2. John likes going (hike)with some of his friends on weekends.3. John's father and uncle are his grandfather's (son).4. Alice spends about two hours (learn)English every day.5. Getting up late (mean)you'll be late.Ⅱ.用方框中所给单词或短语的适当形式填空have fun, spend, real, laugh, activity6. They have many after-school every day.7. After school, Susan often doing sport.8. The kind girl often Sundays with her grandparents.9. The young man can play the piano well.10. Michael a lot when he listens to the funny stories.Unit 3I.用括号内所给单词的适当形式填空1. The tall (build) near our school is anew bookstore.2. To get to school, we need to walk (cross)the bridge first.3. The students can put their things in these (lock).4. You can see about 30 (seat)in the new classroom.5. The story from the book (sound)really interesting.Ⅱ.根据句意及首字母提示补全单词6.Our English teacher, Mr Smith, is working in the teachers' onow.7. Julia often exercises in the school g after school.8. The cake is d .I want another one.9. The n says the sports meeting is on Wednesday.0. There are all kinds of books in the b in the library.Ⅱ.用方框中所给单词的适当形式填空amaze, raise, change, your, importance11. I think it's for the students to exercise every day.12. My sweater is green, and is white.13. The little girl can speak English very well. It's !14. Helen often her hand and asks questions in class.15. To keep clean and tidy, the nice girl her clothes every day.Ⅱ.用方框中所给短语的适当形式填空put up, do exercises, be similar to, in front of,sports field, how about, smart whiteboard, bye for now, at school, reading corner16. My new schoolbag my brother's. They are both blue.17.Mike every morning. He thinks it's good for his health.18. The science building is the computer building.19. Michael the pictures on the wall and then cleans the classroom.20. There are two in our school and we often play sport there.21. It's dark outside. It's time for me to go home. .22. My brother Michael has a lot of good friends .23. I am not busy this afternoon. going shopping together?24. There are about 100 books at the of our classroom.25. Our teachers always use the in the classroom to give lessons.V.语法填空阅读下面短文，在空白处填入一个适当的词，或填入括号中所给单词的正确形式。

2024-2025学年苏科版七年级数学上册期中复习卷(含答案)

期中复习卷-2024-2025学年数学七年级上册苏科版（2024）一．选择题（共8小题）1．在下列数，+1，6.7，0，，﹣5，25%中整数有（）A．2个B．3个C．4个D．5个2．能源产业已成为云南省第一大支柱产业，目前正在推进的3000000千瓦光伏项目，将带动光伏、储能绿色能源装备的发展．3000000用科学记数法可以表示为（）A．0.3×108B．3×106C．30×105D．30×1063．我国部分地区的日温差较大，“早穿棉袄午穿纱”这句谚语描绘的就是某地这种奇妙的气温变化现象．若某市某日上午温度上升15℃记作+15℃，那么傍晚温度下降10℃记作（）A．﹣15℃B．+15℃C．﹣10℃D．+10℃4．﹣1.2﹣0.8＝（）A．﹣2B．﹣0.4C．0.4D．25．如果x为有理数，式子2023﹣|x﹣2023|存在最大值，这个最大值是（）A．2023B．4046C．20D．06．如果单项式与x3y b是同类项，则a、b的值分别是（）A．2，2B．﹣3，2C．2，3D．3，27．当x＝2时，代数式px3+qx+1的值等于2024，那么当x＝﹣2时，代数式px3+qx+1的值为（）A．2024B．﹣2024C．2022D．﹣20228．小亮按如图所示的程序输入一个数x等于10，最后输出的结果为（）A．51B．251C．256D．255二．填空题（共8小题）9．计算：（1）﹣2﹣1＝；（2）（﹣2.1）+（+3.9）＝；（3）（﹣4）×6＝；10．数轴上表示﹣5与1这两个数对应的点之间的距离是．11．已知|a|＝3，，且a＜0＜b，则ab＝．12．如图所示的数轴被墨迹盖住了一部分，则被遮住的所有整数个数为．13．有理数a，b在数轴上的位置如图所示，若表示数b与﹣b的点相距36个单位长度，a与原点的距离是|b|的，则a＝．14．已知单项式﹣2ab3与4a n b m+1是同类项，则m+n＝．15．如果（k﹣2）x3+（|k|﹣2）x2﹣5是关于x的三次二项式，则k的值为．16．某公园准备修建一块长方形草坪，长为35m，宽为25m．并在草坪上修建如图所示的十字路，已知十字路宽x m，则修建的十字路的面积是 m2．（用含x的代数式表示）三．解答题（共8小题）17．计算：（1）﹣6+3+2﹣1（2）（3）（4）18．已知，求ab﹣（a+b）c的值．19．先化简，再求值：2（ab2+3a2b）﹣3（ab2+a2b）﹣a2b，其中，b＝2．20．已知数a，b表示的点在数轴上的位置如图所示．（1）在数轴上表示出a，b的相反数的位置；（2）若数b与其相反数相距20个单位长度，则b表示的数是多少？（3）在（2）的条件下，若数a表示的点与数b的相反数表示的点相距5个单位长度，求a表示的数是多少？21．在数学活动课上，李老师设计了一个游戏活动，四名同学分别代表一种运算，四名同学可以任意排列，每次排列代表一种运算顺序，剩余同学中，一名学生负责说一个数，其他同学负责运算，运算结果既对又快着获胜，可以得到一个奖品．F面我们用四个卡片代表四名同学（如图）：列式，并计算：（1）﹣3经过A、B、C、D的顺序运算后，结果是多少？（2）5经过B、C、A、D的顺序运算后，结果是多少？22．某同学做一道数学题，已知两个多项式A、B，其中B＝2x2y﹣3xy+2x+5，试求A+B．这位同学把A+B 误看成A﹣B，结果求出的答案为4x2y+xy﹣x﹣4．（1）请你替这位同学求出A+B的正确答案；（2）若A﹣3B的值与x的取值无关，求y的值．23．阅读下列材料，我们知道，5x+3x﹣4x＝（5+3﹣4）x＝4x，类似的，我们把（a+b）看成一个整体，则5（a+b）+3（a+b）﹣4（a+b）＝（5+3﹣4）（a+b）＝4（a+b），“整体思想“是中学教学解题中的一种重要的思想方法，它在多项式的化简与求值中应用极为广泛，尝试应用；（1）把（a﹣b）2看成一个整体，合并2（a﹣b）2+6（a﹣b）2﹣3（a﹣b）2的结果．（2）已知m+n＝15，3a﹣2b＝11，求2m+6a﹣（4b﹣2n）的值．（3）拓展探索：已知a﹣3b＝4，3b﹣c＝﹣3，c﹣d＝11，求（a﹣c）+（3b﹣d）﹣（3b﹣c）的值．24．如图，通过观察，小丽同学发现可以用这样的方法确定每个图形中黑色和白色小正方形的总个数：图（1）中共有1个黑色小正方形，图（2）中共有1+3＝22个黑白小正方形，图（3）中共有1+3+5＝32个黑白小正方形，图（4）中共有1+3+5+7＝42个黑白小正方形，回答下列问题．（1）根据前四个图中计算黑白小正方形的总个数的方法和规律，则第（5）个图中计算小正方形个数的等式是：；（2）根据规律，第50个图比第49个图多个小正方形；（3）根据每个图中计算黑白小正方形总个数的方法和规律，计算：①1+3+5+…+197+199；②201+203+205+…+297+299．期中复习卷-2024-2025学年数学七年级上册苏科版（2024）参考答案与试题解析一．选择题（共8小题）1．在下列数，+1，6.7，0，，﹣5，25%中整数有（）A．2个B．3个C．4个D．5个【解答】解：，+1，6.7，0，，﹣5，25%中整数有：+1，0，﹣5，共3个，故选：B．2．能源产业已成为云南省第一大支柱产业，目前正在推进的3000000千瓦光伏项目，将带动光伏、储能绿色能源装备的发展．3000000用科学记数法可以表示为（）A．0.3×108B．3×106C．30×105D．30×106【解答】解：3000000＝3×106，故选：B．3．我国部分地区的日温差较大，“早穿棉袄午穿纱”这句谚语描绘的就是某地这种奇妙的气温变化现象．若某市某日上午温度上升15℃记作+15℃，那么傍晚温度下降10℃记作（）A．﹣15℃B．+15℃C．﹣10℃D．+10℃【解答】解：温度上升15℃记作+15℃，那么傍晚温度下降10℃记作﹣10℃，故选：C．4．﹣1.2﹣0.8＝（）A．﹣2B．﹣0.4C．0.4D．2【解答】解：﹣1.2﹣0.8＝﹣1.2+（﹣0.8）＝﹣2，故选：A．5．如果x为有理数，式子2023﹣|x﹣2023|存在最大值，这个最大值是（）A．2023B．4046C．20D．0【解答】解：∵绝对值具有非负性，∴|x﹣2023|≥0，∵2023﹣|x﹣2023|有最大值，∴当|x﹣2023|＝0时，式子有最大值，此时的值是2023，故A正确．故选：A．6．如果单项式与x3y b是同类项，则a、b的值分别是（）A．2，2B．﹣3，2C．2，3D．3，2【解答】解：由同类项定义可知a＝3，b＝2．故选：D．7．当x＝2时，代数式px3+qx+1的值等于2024，那么当x＝﹣2时，代数式px3+qx+1的值为（）A．2024B．﹣2024C．2022D．﹣2022【解答】解：当x＝2时，px3+qx+1＝8p+2q+1＝2024，∴4p+q＝，∴当x＝﹣2时，px3+qx+1＝﹣8p﹣2q+1＝﹣2（4p+q）+1＝﹣+1＝﹣2022．故选：D．8．小亮按如图所示的程序输入一个数x等于10，最后输出的结果为（）A．51B．251C．256D．255【解答】解：当x＝10时，5x+1＝51＜200，此时输入的数为51，5x+1＝256＞200，所以输出的结果为256．故选：C．二．填空题（共8小题）9．计算：（1）﹣2﹣1＝　﹣3　；（2）（﹣2.1）+（+3.9）＝　1.8　；（3）（﹣4）×6＝　﹣24　；【解答】解：（1）原式＝﹣3，故答案为：﹣3；（2）原式＝1.8，故答案为：1.8；（3）原式＝﹣24，故答案为：﹣24．10．数轴上表示﹣5与1这两个数对应的点之间的距离是　6　．【解答】解：如图，点A所表示的数是﹣5，点B所表示的数是1，所以AB＝|1﹣（﹣5）|＝6，故答案为：6．11．已知|a|＝3，，且a＜0＜b，则ab＝　﹣1　．【解答】解：∵|a|＝3，，a＜0＜b，∴，∴，∴．故答案为：﹣1．12．如图所示的数轴被墨迹盖住了一部分，则被遮住的所有整数个数为　13　．【解答】解：根据题意得：被盖住的整数为﹣10，﹣9，﹣8，﹣7，﹣6，﹣5，7，8，9，10，11，12，13，∴被盖住的整数的个数为13，故答案为：13．13．有理数a，b在数轴上的位置如图所示，若表示数b与﹣b的点相距36个单位长度，a与原点的距离是|b|的，则a＝　6　．【解答】解：∵表示数b与﹣b的点相距36个单位长度，∴，∵a与原点的距离是|b|的，∴|a|＝6，∴a＝±6，由数轴得：a＞0，∴a＝6．故答案为：6．14．已知单项式﹣2ab3与4a n b m+1是同类项，则m+n＝　3　．【解答】解：由同类项定义可知n＝1，m+1＝3，解得m＝2，n＝1，∴m+n＝2+1＝3．故答案为：3．15．如果（k﹣2）x3+（|k|﹣2）x2﹣5是关于x的三次二项式，则k的值为　﹣2　．【解答】解：∵多项式（k﹣2）x3+（|k|﹣2）x2﹣5是三次二项式，∴|k|﹣2＝0，k﹣2≠0，∴k＝﹣2．故答案为：﹣2．16．某公园准备修建一块长方形草坪，长为35m，宽为25m．并在草坪上修建如图所示的十字路，已知十字路宽x m，则修建的十字路的面积是　（60x﹣x2）　m2．（用含x的代数式表示）【解答】解：由图可得，修建的十字路的面积是：35x+25x﹣x2＝（60x﹣x2）m2，故答案为：（60x﹣x2）．三．解答题（共8小题）17．计算：（1）﹣6+3+2﹣1（2）（3）（4）【解答】解：（1）原式＝﹣3+2﹣1＝﹣1﹣1＝﹣2；（2）原式＝＝＝；（3）原式＝＝﹣1﹣5﹣3＝﹣9；（4）＝＝﹣20+8﹣9＝﹣21．18．已知，求ab﹣（a+b）c的值．【解答】解：∵，∴a+1＝0，2b﹣5＝0，＝0，∴a＝﹣1，b＝，c＝，∴ab﹣（a+b）c＝．19．先化简，再求值：2（ab2+3a2b）﹣3（ab2+a2b）﹣a2b，其中，b＝2．【解答】解：原式＝2ab2+6a2b﹣3ab2﹣3a2b﹣a2b＝﹣ab2+2a2b，当a＝﹣，b＝2时，原式＝﹣（﹣）×22+2×（﹣）2×2＝2+1＝3．20．已知数a，b表示的点在数轴上的位置如图所示．（1）在数轴上表示出a，b的相反数的位置；（2）若数b与其相反数相距20个单位长度，则b表示的数是多少？（3）在（2）的条件下，若数a表示的点与数b的相反数表示的点相距5个单位长度，求a表示的数是多少？【解答】解：（1）如图，；（2）数b与其相反数相距20个单位长度，则b表示的点到原点的距离为10，所以b表示的数是﹣10；（3）因为﹣b表示的点到原点的距离为10，而数a表示的点与数b的相反数表示的点相距5个单位长度，所以a表示的点到原点的距离为5，所以a表示的数是5．21．在数学活动课上，李老师设计了一个游戏活动，四名同学分别代表一种运算，四名同学可以任意排列，每次排列代表一种运算顺序，剩余同学中，一名学生负责说一个数，其他同学负责运算，运算结果既对又快着获胜，可以得到一个奖品．F面我们用四个卡片代表四名同学（如图）：列式，并计算：（1）﹣3经过A、B、C、D的顺序运算后，结果是多少？（2）5经过B、C、A、D的顺序运算后，结果是多少？【解答】解：（1）[（﹣3）×2﹣（﹣5）]÷3+6＝（﹣6+5）÷3+6＝＝；（2）[5﹣（﹣5）]÷3×2+6＝（5+5）÷3×2+6＝＝．22．某同学做一道数学题，已知两个多项式A、B，其中B＝2x2y﹣3xy+2x+5，试求A+B．这位同学把A+B 误看成A﹣B，结果求出的答案为4x2y+xy﹣x﹣4．（1）请你替这位同学求出A+B的正确答案；（2）若A﹣3B的值与x的取值无关，求y的值．【解答】解：（1）由题意可得，A﹣B＝4x2y+xy﹣x﹣4，∴A＝4x2y+xy﹣x﹣4+（2x2y﹣3xy+2x+5）＝4x2y+xy﹣x﹣4+2x2y﹣3xy+2x+5＝6x2y﹣2xy+x+1，∴A+B＝6x2y﹣2xy+x+1+（2x2y﹣3xy+2x+5）＝6x2y﹣2xy+x+1+2x2y﹣3xy+2x+5＝8x2y﹣5xy+3x+6；（2）A﹣3B＝6x2y﹣2xy+x+1﹣3（2x2y﹣3xy+2x+5），＝6x2y﹣2xy+x+1﹣6x2y+9xy﹣6x﹣15，＝7xy﹣5x﹣14，＝（7y﹣5）x﹣14，∵A﹣3B的值与x的取值无关，∴7y﹣5＝0，∴．23．阅读下列材料，我们知道，5x+3x﹣4x＝（5+3﹣4）x＝4x，类似的，我们把（a+b）看成一个整体，则5（a+b）+3（a+b）﹣4（a+b）＝（5+3﹣4）（a+b）＝4（a+b），“整体思想“是中学教学解题中的一种重要的思想方法，它在多项式的化简与求值中应用极为广泛，尝试应用；（1）把（a﹣b）2看成一个整体，合并2（a﹣b）2+6（a﹣b）2﹣3（a﹣b）2的结果　5（a﹣b）2　．（2）已知m+n＝15，3a﹣2b＝11，求2m+6a﹣（4b﹣2n）的值．（3）拓展探索：已知a﹣3b＝4，3b﹣c＝﹣3，c﹣d＝11，求（a﹣c）+（3b﹣d）﹣（3b﹣c）的值．【解答】解：（1）2（a﹣b）2+6（a﹣b）2﹣3（a﹣b）2＝（2+6﹣3）（a﹣b）2＝5（a﹣b）2．故答案为：5（a﹣b）2．（2）2m+6a﹣（4b﹣2n）＝2（m+n）+2（3a﹣2b），∵m+n＝15，3a﹣2b＝11，∴2（m+n）+2（3a﹣2b）＝2×15+2×11，＝52．（3）∵a﹣3b＝4，3b﹣c＝﹣3，c﹣d＝11，∴（a﹣c）+（3b﹣d）﹣（3b﹣c），＝a﹣c+3b﹣d﹣3b+c，＝a﹣d，＝4+3b﹣（c﹣11），＝4+3b﹣c+11，＝4+（3b﹣c）+11，＝4﹣3+11，＝12．24．如图，通过观察，小丽同学发现可以用这样的方法确定每个图形中黑色和白色小正方形的总个数：图（1）中共有1个黑色小正方形，图（2）中共有1+3＝22个黑白小正方形，图（3）中共有1+3+5＝32个黑白小正方形，图（4）中共有1+3+5+7＝42个黑白小正方形，回答下列问题．（1）根据前四个图中计算黑白小正方形的总个数的方法和规律，则第（5）个图中计算小正方形个数的等式是：　1+3+5+7+9＝52　；（2）根据规律，第50个图比第49个图多　99　个小正方形；（3）根据每个图中计算黑白小正方形总个数的方法和规律，计算：①1+3+5+…+197+199；②201+203+205+…+297+299．【解答】解：（1）图（1）中共有12个黑色小正方形，图（2）中共有22个黑白小正方形，图（3）中共有32个黑白小正方形，图（4）中共有42个黑白小正方形，∴图（5）中共有52个黑白小正方形，故答案为：1+3+5+7+9＝52；（2）∵图（1）中共有1个黑色小正方形，图（2）中共有1+3＝22个黑白小正方形，图（3）中共有1+3+5＝32个黑白小正方形，图（4）中共有1+3+5+7＝42个黑白小正方形，⋯，则图（n）中共有1+3+5+7+9+（2n﹣1）＝n2个黑白小正方形，∴第50个图比第49个图多502﹣492＝99（个），故答案为：99；（3）由（2）得图（n）中共有1+3+5+7+9+（2n﹣1）＝n2个黑白小正方形，∴①2n﹣1＝199，解得：n＝100，∴1+3+5+⋯+197+199＝1002＝10000；②2n﹣1＝99，解得：n＝50，∴201+203+205+⋯+297+299＝200×100+（1+3+5+7⋯+97+99）＝20000+502＝22500．。

重庆市初二上学期期中语文试卷及解答参考

重庆市语文初二上学期期中复习试卷(答案在后面)一、积累与运用（本大题有7小题，每小题3分，共21分）1、下列词语中，没有错别字的一组是：A. 悠然自得、焕然一新、一帆风顺、无懈可击B. 妙手偶得、栩栩如生、别出心裁、巧夺天工C. 碧空如洗、安然无恙、不假思索、万马齐喑D. 气贯长虹、一蹴而就、举案齐眉、不瘟不火2、根据拼音写出下列词语的正确汉字：（1）wǎn shū（）（2）wán tuó rú shēng（）（3）bèi chū xīn cái（）3、根据下列句子的意思，补全句子中的括号部分。

（1）这句话出自《论语》，意思是：人不知而不愠，不亦君子乎？（）（2）这句话出自《孟子》，意思是：得道多助，失道寡助。

（）（3）这句话出自《庄子》，意思是：千里之行，始于足下。

（）4、下列句子中，加点词的词性分别是什么？（1）青青子衿，悠悠我心。

（）（2）问君能有几多愁？恰似一江春水向东流。

（）（3）会当凌绝顶，一览众山小。

（）5、阅读下面的诗句，回答问题。

疏影横斜水清浅，暗香浮动月黄昏。

此句出自宋代诗人（）A. 苏轼B. 李清照C. 陆游D. 辛弃疾6、下列句子中，没有语病的一项是（）A. 随着科技的发展，人们的出行方式发生了巨大变化，如今，高铁、飞机等现代交通工具已成为人们出行的主要选择。

B. 为了提高学生的综合素质，学校决定增设一些课外活动，这些活动不仅丰富了学生的课余生活，也增强了他们的体质。

C. 这本书不仅内容丰富，而且插图精美，受到了广大读者的好评。

D. 经过长时间的研究，我国科学家已经成功破解了人类长寿的奥秘。

7、下列句子中，没有语病的一项是：A. 为了提高学生的阅读能力，学校决定每周增加一次课外阅读时间，并且举办一次读书分享会。

B. 这个展览不仅展示了我国丰富的文化遗产，也反映了我国人民对美好生活的向往。

C. 随着科技的进步，我们的生活变得越来越便捷，但同时也带来了很多新的问题。

2024-2025学年统编版小学六年级上学期期中语文试卷与参考答案

2024-2025学年统编版语文小学六年级上学期期中复习试卷(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、下列词语中加点字的注音完全正确的一项是（）A. 沧桑（cāng sāng）惊悚（jīng sǒng）突兀（tū wù）B. 汲引（jī yǐn）崭新（zhǎn xīn）搏击（bó jī）C. 呼啸（hū xiào）潮涌（cháo yǒng）摧毁（cuī huǐ）D. 岁月（suì yuè）崭新（zhēn xīn）搏击（bó jī）2、下列句子中，没有语病的一项是（）A. 我曾经多次参观过这个纪念馆，每次都深受教育。

B. 这个展览馆展示了我国几千年的文化史，令人感叹不已。

C. 学校的运动会即将举行，同学们都在积极地为比赛做准备。

D. 通过这次学习，我对我国的历史文化有了更深的了解。

3、下列词语中加点字注音完全正确的一项是（）A. 奇迹（jī qì）振奋（zhèn fèn）沉浸（chén jìn）B. 领悟（lǐng wù）摧毁（cuī huǐ）振奋（zhèn fèn）C. 奋进（fèn jìn）领悟（lǐng wù）沉浸（chén jìn）D. 振奋（zhèn fèn）挑战（tiǎo zhàn）沉浸（chén jìn）4、下列句子中，没有语病的一项是（）A. 由于天气突变，导致我市出现了大面积的交通拥堵。

B. 他的演讲，不仅提高了我们的思想觉悟，还增强了我们的信心。

C. 她虽然取得了优异的成绩，但是并没有骄傲自满。

D. 为了提高我们的环保意识，学校决定在校园内开展环保宣传活动。

5、下列词语中，没有错别字的一组是（）A. 碧波荡漾轰轰烈烈恣意妄为风华正茂B. 轰轰烈烈碧波荡漾妄意妄为风华正茂C. 碧波荡漾轰轰烈烈恣意妄为风华正茂D. 碧波荡漾轰轰烈烈妄意妄为风华正茂6、下列句子中，没有语病的一句是（）A. 这场演讲比赛不仅提高了我们的口语表达能力，也使我们的思维能力得到了锻炼。

河南省南阳市语文小学六年级上学期期中试卷与参考答案

河南省南阳市语文小学六年级上学期期中复习试卷(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、下列词语书写完全正确的一组是( )A. 晶莹竭力赏试蜿蜒B. 勉励暴躁腼腆抱怨C. 忧虑严历敏捷魁梧D. 抱负遣责讥笑眷恋2、下列句子中加点成语使用不恰当的一项是( )A. 这场篮球赛精彩纷呈，比赛双方队员个个生龙活虎，场边观众也看得津津有味。

B. 无论在学习中还是工作中，我们都要勤学好问，不耻下问，这样才能不断进步。

C. 走进大自然，我们感到心旷神怡，所有的烦恼都烟消云散了。

D. 教室里人声鼎沸，同学们都在热烈地讨论着这次春游的具体安排。

3、根据拼音写汉字，并解释词语意思。

（每空2分，共10分）•lǚ xíng (旅行): 去不同的地方游玩或办事的行为。

•fēn fù (吩咐): 口头指派或命令。

•yí huò (疑惑): 对事物感到不确定或不解。

•zào rè (燥热): 气候或环境温度高且干燥。

•chéng fá (惩罚): 因做错事而受到的处罚。

5、下列句子中，加点的字音、字形、字义完全正确的一项是（）A. 源远流长（yuan）/ 漫步（man）/ 聪明伶俐（ling）B. 风和日丽（he）/ 窃窃私语（qie）/ 震耳欲聋（lou）C. 井井有条（jing）/ 融会贯通（rong）/ 气喘吁吁（xu）D. 惊心动魄（dong）/ 欣喜若狂（xuan）/ 一丝不苟（kou）6、下列词语中，没有错别字且解释正确的一项是（）A. 雅俗共赏（yǎsú gòng shǎng）/ 漫不经心（màn bù jīng xīn）/ 惊心动魄（j īng xīn dòng pò）B. 破釜沉舟（pòfǔ chén zhōu）/ 青出于蓝（qīng chū yú lán）/ 鸡犬升天（j īquǎn shēng tiān）C. 息息相关（xīxī xiāng guān）/ 破绽百出（pòzhàn bǎi chū）/ 略知一二（l üèzhī yī èr）D. 落落大方（luòluò dà fāng）/ 妙手偶得（miào shǒu ǒu dé）/ 一言难尽（y īyán nán jìn）7、下列词语中加点字的正确读音是：A. 憧憬（chōng jǐng）B. 蜷缩（juǎn suō）C. 颓废（tuí fèi）D. 镌刻（juàn kè）8、下面的句子中，没有语病的一项是：A. 这本书对我很感兴趣。

人教版英语小学六年级上学期期中试卷及答案指导(2024-2025学年)

2024-2025学年人教版英语小学六年级上学期期中复习试卷及答案指导一、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. (Listen once.)Dialogue:A: “What do you usually do after school?”B: “I usually go to the library to read books.”Question:Where does the person usually go after school?A) To the parkB) To the libraryC) To the cinemaAnswer: B) To the libraryExplanation: The dialogue clearly states that the person “usually go(es) to the library to read books” after school.2、Listen to the short passage and choose the correct answer. (Listen twice.)Passage:Yesterday was a sunny day. Sam went to the zoo with his family. They saw many animals there. Sam’s favorite animal is the panda, and he spent a lot of timewatching the pandas play.Question:Which animal did Sam like best at the zoo?A) The elephantB) The lionC) The pandaAnswer: C) The pandaExplanation: In the passage, it is mentioned that “Sam’s favorite animal is the panda,” indicating that among all the animals at the zoo, Sam lik ed the panda the best.3、What does the speaker say about the weather today?A. It’s sunny and warm.B. It’s cloudy and cold.C. It’s rainy and windy.Answer: BExplanation: The speaker mentions that it’s a bit chilly outside and that there are dark clouds in the sky, indicating that the weather is cloudy and cold.4、How does the student feel about the new science teacher?A. He likes her very much.B. He doesn’t like her.C. He is neutral about her.Answer: AExplanation: The student expresses enthusiasm and excitement about the new science teacher, saying that she is very kind and makes the class interesting, which shows that he likes her very much.5、Listen to the dialogue and choose the correct answer. (The dialogue will be played twice.)Dialogue:Boy: “Hey, Sarah! What’s your favorite subject?”Girl: “Well, I really enjoy Math because it’s like solving puzzles. But my favorite subject is Science. I love learning about the world around us.”Question:5、What is Sarah’s favorite subject?A. MathB. ScienceC. EnglishAnswer: B. ScienceExplanation: In the dialogue, Sarah mentions that although she enjoys Math, her favorite subject is Science because she loves learning about the world around her.6、Listen to the short passage and choose the correct answer. (The passage will be read twice.)Passage:In many countries, it’s customary to celebrate New Year’s Day by setting offfireworks at midnight. However, some cities have opted for more environmentally friendly ways to mark the occasion, such as light shows or planting trees.Question:6、How do some cities celebrate New Year’s Day in an environmentally friendly way?A. By setting off fireworksB. By planting treesC. By organizing paradesAnswer: B. By planting treesExplanation: The passage indicates that while fireworks are traditional, some cities now prefer eco-friendly methods like light shows or planting trees to celebrate New Year’s Day.7、Listen to the dialogue and choose the best answer to complete the sentence.A. What’s the weather like today?B. It’s sunny, but it’s a bit cold.C. I think it will rain later.D. We should take an umbrella with us.Answer: BExplanation: The dialogue implies that while the weather is sunny, the speaker also mentions that it’s a bit cold, which suggests the choice that it’s sunny but a bit cold is the most accurate.8、Listen to the question and choose the best answer.Question: How do you usually go to school?A. By bus.B. By bike.C. By car.D. On foot.Answer: AExplanation: The question asks about the usual mode of transportation to school, and typically, children in a small town or city might use a bus to get to school, making option A the most common and logical answer.9、What is the relationship between the two speakers?A. Teacher and studentB. Mother and sonC. Shopkeeper and customerAnswer: B. Mother and sonExplanation: In the conversation, the woman is reminding the boy about his homework and asking him to clean his room, which indicates a mother-son relationship. She also uses a caring tone that is typical of a parent-child interaction.10、Where does the conversation most likely take place?A. In a classroomB. At homeC. In a supermarketAnswer: B. At homeExplanation: The context of the conversation involves topics such as doing homework and cleaning a bedroom, which are activities typically associated with being at home. There is no mention of a classroom or any items that would suggesta setting in a supermarket.11.You are listening to a conversation between two students, Alice and Bob. They are discussing their weekend plans. Listen to the conversation and answer the question.Question: What are Alice and Bob planning to do this weekend?A. Go to the beachB. Visit a museumC. Go hikingD. Stay at homeAnswer: B. Visit a museumExplanation: In the conversation, Alice says, “I think we should visit the museum this weekend.” Bob agrees with her, so they are planning to visit a museum.12.Listen to a short passage about the benefits of reading. After listening, answer the question.Question: According to the passage, what is one of the benefits of reading?A. It helps improve concentrationB. It helps reduce stressC. It helps improve memoryD. It helps learn a new languageAnswer: B. It helps reduce stressExplanation: The passage states, “Reading can be a great way to relax and reduce stress. It allows your mind to wander and escape from everyday worries.” This indicates that reducing stress is one of the benefits of reading.二、选择题（本大题有12小题，每小题2分，共24分）1、The sentence “The cat is sleeping on the mat” is an example ofa(n)_______sentence.A)interrogativeB)imperativeC)declarativeD)exclamatoryAnswer: C) declarativeExplanation: A declarative sentence makes a statement or asserts something. In this case, the sentence is stating that the cat is sleeping on the mat, so it is a declarative sentence.2、Choose the word that best completes the sentence.The children were playing outside when_______started to rain.A)itB)theyC)theD)weAnswer: A) itExplanation: The correct pronoun to complete the sentence is “it” because it refers to the weather, specifically the rain that started to fall. “It” is used to refer to the weather when talking about rain, snow, etc.3、Choose the correct word to complete the sentence.A. happyB. unhappilyC. happinessD. happilyThe boy looked at the picture of his family and felt a sense of (______)A. happyB. unhappilyC. happinessD. happilyAnswer: C. happinessExplanation: The sentence is looking for a noun to complete the phrase “a sense of.” “Happy” and “happily” are adjectives and adverbs, respectively, and “happiness” is the noun that would fit the context, indicating a feeling or state of being happy.4、Read the dialogue and choose the best answer to complete it.A. I’m going to the park today.B. That’s a good idea!C. I’m tired.D. I don’t like to play outside.Alice: (______) I can’t wait to run around and enjoy the fresh air.Ben: (______)A. I’m going t o the park today.B. That’s a good idea!C. I’m tired.D. I don’t like to play outside.Answer: A. I’m going to the park today.Explanation: The dialogue suggests a positive and active plan for the day. The first speaker is expressing excitement about going to the park, which makes option A the most appropriate response for the second speaker to encourage the activity.5.Choose the correct word to complete the sentence.I am feeling_today, because I lost my favorite toy.A. sadB. happyC. tiredD. angryAnswer: A. sadExplanation: The sentence implies that the speaker is feeling a negativeemotion due to the loss of their favorite toy. “Sad” is the correct choice as it expresses a feeling of sorrow or unhappiness.6.Select the sentence that does not follow the correct sequence of tenses.A. He was reading a book yesterday, and now he is watching TV.B. She goes to school every day, but she didn’t finish her homework last night.C. I will go to the park tomorrow, and I have already bought a new ball.D. We were playing soccer last week, and we will play again next week.Answer: B. She goes to school every day, but she didn’t finish he r homework last night.Explanation: Option B contains a mix of present simple and past simple tenses. The first part of the sentence (“She goes to school every day”) uses the present simple tense to describe a routine activity, while the second part (“she didn’t finish her homework last night”) uses the past simple tense to describe a past event. The correct sequence should use the same tense for both parts of the sentence, as in options A, C, and D.7.Choose the correct word to complete the sentence.The cat likes to sleep______the sun.A. inB. underC. overD. aboveAnswer: BExplanation: The correct phrase is “under the sun,” which means in a sunny place. The other options do not convey this meaning properly.8.Select the sentence that has the correct use of the past tense.A. She walked to the park yesterday.B. She walks to the park every day.C. She will walk to the park tomorrow.D. She walked to the park.Answer: AExplanation: The past tense is used to describe an action that happened in the past. Option A correctly uses the past tense verb “walked.” The other options use the present tense or future tense, which are not appropriate for describing past events.9.Choose the correct word to complete the sentence.The cat was sitting on the_(A) floor (B) tree (C) table.Answer: AExplanation: The sentence is talking about the cat sitting, which implies it is on the ground. Therefore, “floor” is the correct choice.10.Select the word that best completes the sentence.The teacher asked the students to write their names on the_(A) book (B) paper (C) wall.Answer: BExplanation: Writing names is typically done on paper. The other options, “book” and “wall,” are not appropriate for writing names. Thus, “paper” is the correct choice.11.Choose the correct word to complete the sentence.The cat was sleeping on the ______.A. bedB. tableC. floorAnswer: CExplanation: The correct answer is “floor” because it is common for cats to sleep on the floor, which is their natural habitat. “Bed” is for humans, and “table” is not a typical place for a cat to sleep.12.Select the word that best completes the sentence.I like to eat______for breakfast.A. cakesB. vegetablesC. ice creamAnswer: BExplanation: The correct answer is “vegetables” because it is a common and healthy choice for breakfast. “Cakes” and “ice cream” are sweet treats that are more suitable for desserts or special occasions, not for regular breakfast meals.三、完型填空（10分）Section 3: Cloze TestRead the following passage and choose the best word for each blank from the options given.Last summer, the sixth-grade class at Greenfield Elementary went on a 1 trip to the 2. They were 3 to explore the natural wonders of the area and learn about the local wildlife. The day started with a visit to a nearby 4, where they learned about the different species of birds that 5 there.1.A) excitingB) interestingC) wonderfulD) educational2.A) parkB) museumC) forestD) beach3.A) hopingB) willingC) eagerD) planning4.A) libraryB) zooC) gardenD) beach5.A) livedB) visitedC) traveledD) discoveredAnswers:1.D) educational2.C) forest3.C) eager4.B) zoo5.A) lived四、阅读理解（26分）Reading ComprehensionPassage:One sunny morning, a little boy named Tom was walking through the park with his dog, Max. Tom loved the park because it was full of trees, flowers, and birds. Max loved the park because it had a big open field where he could run and play.As they were walking, Tom noticed a small pond in the park. The pond was full of ducks, and the ducks were quacking loudly. “Hey, Max, look at those ducks!” Tom said. Max barked in excitement.Tom and Max walked over to the pond. There were four ducks on the pond, and they were all swimming around. Tom took out his camera and took pictures of the ducks. Max ran around the pond, trying to catch the ducks.After a while, the ducks swam to the other side of the pond. Tom and Max followed them. When they got to the other side, they saw a sign that said, “No Dogs Allowed.” Max barked and barked, but Tom explained to him that they had to follow the rules.Max understood, and they turned around and left the pond. As they were leaving, Tom said, “Maybe we can come back here tomorrow when it’s not a No Dogs Allowed day.”Max wagged his tail and barked in agreement.Questions:1.What did Tom notice when he was walking through the park?2.What did Max do when he saw the ducks?3.What did the sign at the pond say?Answers:1.Tom noticed a small pond in the park.2.Max barked and barked when he saw the ducks.3.The sign at the pond said, “No Dogs Allowed.”五、写作题（16分）Title: My Beloved PandaOnce upon a time, there was a cute little panda named Pan. Pan had a fluffy white coat, a round face, and big black eyes. He was a vegetarian, and he loved to eat bamboo.One interesting fact about pandas is that they are native to China, and they are the national treasure of the country. Another fact is that pandas have a very slow metabolism, which means they need to eat a lot of bamboo to get enough energy.I like pandas because they are so adorable and peaceful. They remind me of the beauty of nature. In my opinion, pandas are the ambassadors of peace and harmony. They have become a symbol of hope for conservation efforts.To me, Pan is not just an animal; he is a friend who brings me joy and happiness. Every time I see a panda, I feel lucky to be a part of this wonderful world.Analysis:This example story follows the given requirements. It starts by introducing the panda, Pan, and describes its appearance. The writer then provides two interesting facts about pandas: their origin in China and their slow metabolism. Next, the writer explains why they like pandas, emphasizing their cute appearance and peaceful nature. Finally, the writer shares their personal connection with Pan, describing how the panda brings them joy and happiness.The story is well-structured and flows smoothly. The writer uses vivid language to create a picture of Pan and the reader can easily imagine the panda’scharacteristics. The personal touch adds depth to the story and makes it more relatable. Overall, this example demonstrates a clear understanding of the writing prompt and effectively communicates the writer’s feelings and thoughts about their favorite animal.。

2024-2025学年山东省德州市小学三年级上学期期中数学试卷与参考答案

2024-2025学年山东省德州市数学小学三年级上学期期中复习试卷(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、小明的书架上原来有8本书，他借给小红3本书后，书架上还剩多少本书？A、5本B、6本C、7本D、8本2、一个长方形的长是12厘米，宽是5厘米，这个长方形的周长是多少厘米？A、17厘米B、20厘米C、27厘米D、32厘米3、小明有5个苹果，妈妈又给他买了3个苹果，小明现在有多少个苹果？A. 8个B. 10个C. 12个4、小红有8个铅笔，她的同桌给了她2个铅笔，小红现在有多少个铅笔？A. 10个B. 6个C. 5个5、小明有25个苹果，他每天吃掉3个苹果，吃了5天后，小明还剩下多少个苹果？选项：A. 15个B. 20个C. 10个D. 5个6、小华有一些邮票，他给了小丽10张，又给了小芳5张，最后小华还剩下8张邮票。

小华原来有多少张邮票？选项：A. 23张B. 18张C. 13张D. 8张二、填空题（本大题有6小题，每小题4分，共24分）1、小明的书桌上原来有12本书，他借给同学5本，现在他书桌上还剩______ 本书。

2、一个长方形的长是8厘米，宽是5厘米，它的周长是 ______ 厘米。

3、一个长方形的长是10厘米，宽是5厘米，这个长方形的周长是 ______ 厘米。

4、小明有苹果20个，橘子和苹果的总数是35个，小明有多少个橘子？5、计算。

（1）27×3＝________（2）240÷8＝________（3）560÷7＝________（4）120×5＝________6、一个数的5倍是100，这个数是 ________ 。

三、计算题（本大题有5小题，每小题4分，共20分）1、小明有24个苹果，他给了小红8个，请问他还剩多少个苹果？2、一辆公交车上有35人，在第一站下去了9人，然后又上来了12人，请问现在车上有多少人？3、（1）357 + 426 =4、（1）768 × 3 =5、计算。

安徽省阜阳市语文初二上学期期中试卷与参考答案(2024-2025学年)

2024-2025学年安徽省阜阳市语文初二上学期期中复习试卷(答案在后面)一、积累与运用（本大题有7小题，每小题3分，共21分）1、下列词语中加点字的读音完全正确的一项是：A. 镌刻(juān) 殷红(yīn)B. 哺育(bǔ) 炽热(zhì)C. 脸颊(xiá) 拮据(jū)D. 字帖(tiè) 琴弦(xián)2、下列各组词语中没有错别字的一项是：A. 沉湎恻隐之心B. 阴庇无动于衷C. 烦燥心旷神怡D. 污篾相形见拙3、下列词语中，字形和字音都正确的一项是（）A. 荡漾（dàng yàng）漫不经心（màn bù jīn xīn）B. 悠然自得（yōu rán zì dé）畏首畏尾（wèi shǒu wèi wěi）C. 蹦蹦跳跳（bèng bèng tiào tiào）热火朝天（rèhuǒ tiān cháng）D. 一蹴而就（yīcù ér jiù）惊心动魄（jīng xīn dòng pò）4、下列句子中，没有语病的一项是（）A. 为了使家乡的绿化工作做得更好，我们班上组织了一次植树活动。

B. 随着科技的快速发展，我国在许多领域都取得了举世瞩目的成就，为世界发展作出了巨大贡献。

C. 他不仅学习优秀，而且热爱劳动，是老师心目中的好学生。

D. 这个故事让我深深地感动，我久久不能忘怀。

5、下列句子中加点字的读音完全正确的一项是：A. 红缯(zēng) 玉翳(yì) 草蓐(rù)B. 鼙鼓(pí) 潺湲(yuán) 霰雪(xiàn)C. 沆瀣(xiè) 槲树(hú) 霏霏(fēi)D. 萌蘖(niè) 紫绡(xiāo) 萦纡(yū)6、下列各句中，成语使用恰当的一项是：A. 这篇文章写得枯燥乏味，真是令人“目不暇接”。

部编语文八上期中文言文基础复习卷答案

期中文言文基础复习卷四、通假字。

五、重点实词。

六、特殊句式训练，指出下列特殊句式，省略句的，补充省略成分。

七、翻译训练。

注意：字字落实、省略成分补出、倒装句式还原1.重岩叠嶂，隐天蔽日，自非亭午夜分，不见曦月。

翻译：重重叠叠的岩崖和直立像屏障的山峰，遮蔽了天空和太阳，如果不是正午就看不见太阳，如果不是半夜就看不见月亮。

2.春冬之时，则素湍绿潭，回清倒影，绝巘多生怪柏，悬泉瀑布，飞漱其间，清荣峻茂，良多趣味。

翻译：春冬季节，激起白色浪花的急流中（有）回旋的清波，碧绿的深潭中（有）倒映着各种景物的影子。

在极高的山峰上，生长着许多奇形怪状的柏树，悬挂的泉水瀑布，从它们之间飞快地往下冲荡。

水清树荣，山高草盛，实在有很多趣味。

3.每至晴初霜旦，林寒涧肃，常有高猿长啸，属引凄异，空谷传响，哀转久绝。

翻译：每到天刚放晴或下霜的早晨，树林和山涧一片清冷、凄寒、肃杀。

经常有高处的猿猴拉长声音鸣叫，声音接连不断，凄惨悲凉。

空旷的山谷中传来猿猴鸣叫的回声，声音悲凉婉转。

很长时间才停止、消失。

4.晓雾将歇，猿鸟乱鸣；夕日欲颓，沉鳞竞跃。

翻译：清晨的薄雾将要消散，猿鸟此起彼伏地鸣叫。

夕阳快要落山了，水中潜游的鱼儿争相跳出水面。

5.自康乐以来，未复有能与其骑着。

翻译：自从南朝的谢灵运以来，就再也没有能欣赏这种奇丽景色的人了。

6.庭下如积水空明，水中藻荇交横，盖竹柏影也。

翻译：庭院中的月光像积水一样澄澈透明，水中仿佛有藻、荇交错纵横，大概是竹子和柏树的影子吧。

7.风烟俱净，天山共色。

从流飘荡，任意东西。

翻译：风和烟都消散净尽，天空和群山是同样的颜色。

我（乘船）随着江流漂荡，任凭船随意向东或向西漂流（使船所至，欣赏美景）。

8.急湍甚箭，猛浪若奔。

翻译：湍急的水流比箭还快，汹涌的大浪好像飞奔的马。

9.夹岸高山，皆生寒树，负势竞上，互相轩邈，争高直指，千百成峰。

翻译：夹着江水的两岸的高山上都生长着密而绿的树，让人心生寒意。

山峦凭借（高峻的）地势争着向上。

2024-2025学年云南省昆明市小学三年级上学期期中数学试卷与参考答案

2024-2025学年云南省昆明市数学小学三年级上学期期中复习试卷(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、小明的书架上原来有15本书，他借给同学5本，现在还剩下多少本书？A. 10本B. 20本C. 5本D. 0本2、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？A. 11厘米B. 16厘米C. 20厘米D. 24厘米3、小明的爸爸今年35岁，小明的妈妈比爸爸小5岁。

那么，小明的妈妈今年（）岁。

A、30岁B、34岁C、30岁D、31岁4、小华有15个苹果，小明有苹果是小华的3倍。

那么，小明有多少个苹果？（）A、30个B、45个C、15个D、18个5、下列哪个数是质数？A. 14B. 17C. 20D. 256、小明把一些苹果分成每盒5个，最后剩下2个苹果。

如果小明有12盒苹果，那么小明一共有多少个苹果？A. 60B. 62C. 65D. 68二、填空题（本大题有6小题，每小题4分，共24分）1、小明有20个苹果，他吃掉了其中的3个，剩下的苹果个数是______ 。

2、一个长方形的长是8厘米，宽是4厘米，这个长方形的周长是 ______ 厘米。

3、一个长方形的长是12厘米，宽是5厘米，这个长方形的周长是 ________ 厘米。

4、小华有15个苹果，小明给了小华3个苹果后，小华现在有多少个苹果？5、一个三位数，百位数字是3，十位数字是比百位数字小2的数，个位数字是比十位数字大1的数，这个三位数是 ______ 。

6、小明的储蓄罐里有20个硬币，其中1角的硬币比2角的硬币多8个。

问2角的硬币有多少个？三、计算题（本大题有5小题，每小题4分，共20分）1、（1）234 + 567 =_______（2）456 - 234 =_______（3）345 × 2 =_______（4）567 ÷ 3 =_______2、（1）789 + 321 =_______（2）432 - 189 =_______（3）567 × 3 =_______（4）789 ÷ 3 =_______3、小明在做加法练习时遇到了一道题目：157 + 268，请计算出正确答案。

河南省郑州市二七区2023-2024学年下学期七年级数学期中复习卷(含答案)

河南省郑州市二七区2023-2024学年下学期七年级数学期中复习卷（二）考试范围：七下第一、二、三章；考试时间：100分钟；满分120分一、选择题（每小题3分，共30分）1．若，则（）A．B．C．D．2．如图，直线，被直线所截，，若，则的度数为（）A．B．C．D．3．下列计算正确的是（）A．B．C．D．4．2024年3月“天水麻辣烫”火出天际，全国无数游客竞相涌入天水，近20多天，天水市就累计接待游客299万人次，请你用科学计算法表示出近期天水接待游客有（）人．A．B．C．D．5．如图，点C 在的边上，用尺规作出了，作图痕迹中，是（）A．以点C 为圆心，为半径的弧B．以点C 为圆心，为半径的弧C．以点E 为圆心，为半径的弧D．以点E 为圆心，为半径的弧6．如图（1），在边长为a的正方形中挖去一个边长为b的小正方形（），把余下的部分拼成一个长方形，如图（2），此过程可以验证（）A．B．C．D．7．在实验课上，小亮利用同一块木板，测量了小车沿木板从不同高度h下滑的时间t，得到如表所示的数据，则下列结论不正确的是（）高度1020304050…下滑时间 3.25 3.01 2.81 2.66 2.56…A．在这个变化中，高度是自变量B．当时，t约为C．随着高度的增加，下滑时间越来越短D．高度每增加，下滑时间就减少8．如图，，垂足为，P是线段上一点，连接的长不可能是（）A．4B．5C．6D．79．近几年中学生近视的现象越来越严重，为响应国家的号召，某公司推出了护眼灯，其侧面示意图（台灯底座高度忽略不计）如图所示，其中，，经使用发现，当时，台灯光线最佳．则此时的度数为（）A．B．C．D．10．甲、乙两车沿同一条路从地出发匀速行驶至相距的地，甲出发1小时后乙再出发，如图表示甲、乙两车离开地的距离与乙出发的时间之间的关系，下列结论错误的是（）A．甲车的速度是B．乙车的速度是C．的值为60，的值为4D．甲车出发后被乙车追上二、填空题（每小题3分，共15分）11．计算：．12．如图，已知，，若，．13．如图，直线相交于点，平分为平面上一点，且，若，则．14．声音在空气中的传播速度与温度的关系如下表所示：温度05101520传播速度331334337340343则传播速度与温度之间的关系式为．15．小明和小华是同班同学，也是邻居，某日早晨，小明7：00先出发去学校，走了一段路后，在途中停下来吃了早饭，后来发现上学时间快到了，就跑步到学校；小华离家后直接乘公交车到了学校．如图是他们从家到学校已走的路程和小明所用时间的关系图，则下列说法中正确的是．①小明吃早饭用时；②小华到学校的平均速度是；③小明跑步的平均速度是；④小华到学校的时间是7：05．三、解答题（本大题共8小题，共75分）16．（8分）计算：(1)；(2)．17．（8分）先化简，再求值：，其中．18．（9分）如图，已知，．(1)请用尺规在内作使得．(2)在（1）的条件下，若，，平分，则______．19．（9分）如图，，分别交、与、，，平分，交于，求的度数．20．（9分）游泳池应定期换水，某游泳池在一次换水前存水936立方米，换水时关闭进水孔打开排水孔，以每小时78立方米的速度将水放完，当放水时间增加时，游泳池的存水随之减少，它们的变化情况如下表：放水时间/小时1234567游泳池的存水/立方米858780702546(1)在这个变化过程中，反映函数关系的两个变量分别是什么？(2)请将上述表格补充完整；(3)设放水时间为小时，游泳池的存水量为立方米，写出与的函数关系式．（不写自变量范围）21．（10分）如图，某市有一块长为，宽为的长方形地块，规划部门计划将阴影部分进行绿化，中间将修建一座雕像．(1)长方形地块的面积是多少？（用代数式表示）(2)绿化的面积是多少？（用代数式表示）(3)求出当，时的绿化面积．22．（11分）如图①所示是一个长为，宽为的长方形，沿图中虚线用剪刀均分成四个小长方形，然后按图②的方式拼成一个正方形．(1)你认为图②中阴影部分的正方形的边长等于_______．(2)请用两种不同的方法列代数式表示图②中阴影部分的面积.方法①___________；方法②__________．(3)观察图②，试写出，，这三个代数式之间的等量关系______．(4)根据（3）题中的等量关系，解决如下问题：若，，则求的值．23．（12分）我们通常把图1、图2 中的点E称为拐点，解决平行线中有关拐点问题的方法，一般是过拐点作平行线【探究发现】如图1，已知，直接写出的数量关系；【变式拓展】如图2，保持，当点E在的右上方时，的数量关系有变化吗? 写出结论，并证明你的猜想；【学科融合】图3是一探照灯灯碗的纵剖面，在焦点O处发出的光线经灯碗(点C 除外)反射后均沿与平行的方向射出．入射光线的反射光线为，，若入射光线经灯碗反射后沿射出，且，求的度数.期中复习卷（二）参考答案：1．C【分析】本题考查同底数幂的乘法．根据同底数幂乘法的计算方法进行计算即可．【思路点拨】解：，．故选：C．2．B【分析】本题主要考查了对顶角相等、平行线的性质等知识，理解并掌握平行线的性质是解题关键．首先根据“对顶角相等”可得，再根据“两直线平行，同旁内角互补”，由求解即可．【思路点拨】解：如下图，∵，∴，∵，∴．故选：B．3．D【分析】本题考查负整数指数次幂和零次幂的计算，掌握运算法则是解题的关键．【思路点拨】A. ，原计算错误；B. ，原计算错误；C. ，原计算错误；D. ，原计算正确；故选D．4．A【分析】用科学记数法表示较大的数时，一般形式为，其中，为整数．【思路点拨】解：依题意，．故选：A．【点睛】本题考查了科学记数法，科学记数法的表示形式为的形式，其中，为整数．确定的值时，要看把原来的数，变成时，小数点移动了多少位，的绝对值与小数点移动的位数相同．当原数绝对值时，是正数；当原数的绝对值时，是负数，确定与的值是解题的关键．5．D【分析】本题主要考查作图-尺规作图，解题的关键是熟练掌握作一个角等于已知角的尺规作图步骤．根据作一个角等于已知角的步骤即可得．【思路点拨】解：作图痕迹中，是以点 E 为圆心，为半径的弧．故选：D．6．C【分析】本题考查平方差公式的几何背景，用代数式表示各个图中阴影部分的面积是得出答案的关键．分别表示图（1）和图（2）中阴影部分的面积即可得出答案．【思路点拨】解：图（1）中阴影部分的面积为：，图（2）中阴影部分的面积为：，过程可以验证．故选：C．7．D【分析】本题主要考查了函数的表示方法，依据表格反映的规律回答问题是解题的关键．依据题意，根据列表法表示的函数，通过表格反映的规律，对每一个选项进行验证可以得解．【思路点拨】解：根据表格可知，高度是自变量，下滑时间是因变量，选项正确．从表中的对应值可以看到当时，，选项正确．从表中数据看到：当由10逐渐增大到50时，的值由3.25逐渐减小到2.56，随高度增加，下滑时间越来越短．选项正确．因为时间的减少是不均匀的，选项错误．综上，只有选项错误．故选：D．8．A【分析】本题考查垂线段的性质和三角形中的等面积法，解题的关键是学会由面积法求高．根据垂线段最短可知，当时取最小值，利用等面积法求出的最小值，即可从选项中找出答案．【思路点拨】解：在中，，垂足为，∵当时，的值最小，中，由等面积法可得：，即：，，∴线段的值不可能是4．故选：A．9．A【分析】本题考查平行线的性质．过作，得到，由，推出，由垂直的定义得到，求出，由平行线的性质推出，即可求出．【思路点拨】解：过作，∵，∴，，，，，，∵，，．故选：A．10．D【分析】根据图象，列出关于a，b的方程，求出a，b的值，从而即可逐一判断各个选项．【思路点拨】解：根据图象可知，（300-a）÷b=（240-a）÷3=a÷1，解得：a=60，b=4，甲车的速度=60÷1=60km/h，乙车的速度=300÷3=100km/h，故A，B，C正确，不符合题意；∵60÷（100-60）=1.5，1.5+1=2.5h，∴甲车出发后被乙车追上，故D错误，符合题意，故选D．【点睛】本题考查了用图像表示的变量间关系，理解图象以及分别求出甲、乙两人的速度是解题的关键．11．/0.5【分析】本题主要考查积的乘方的逆运算，熟练掌握相关运算法则是解题关键．根据积的乘方的逆用计算即可．【思路点拨】解：原式．故答案为：．12．/32度【分析】本题考查了同角的余角相等，根据同角的余角相等解答．【思路点拨】∵，∴与互为余角，∵，∴与互为余角，∴根据同角的余角相等，得，故答案为：．13．或/65或115【分析】本题考查了几何图形中角度的计算，根据题意画出满足条件的图形是解题关键．【思路点拨】解：由题意得：，∵平分∴若在内部，如图所示：则；若在内部，如图所示：则；故答案为：或14．【分析】本题考查了函数关系式，分析表格中的数据可得温度每升高，声音的传播速度增快，由此即可得到答案．【思路点拨】解：由表格的数据可得：温度每升高，声音的传播速度增快，传播速度与温度之间的关系式为，故答案为：．【分析】观察图像，根据路程、速度、时间之间的关系依次判断即可．【思路点拨】由图知小明从家出发，第8分钟至第13分钟在吃早饭，因此小明吃早饭用了5分钟，故①正确；由图知小华从家到学校的路程为1200米，用时分钟，因此小华到学校的速度为，故②正确；由图知小明从第13分钟至第20分钟跑步到学校，用时分钟，跑的路程为米，因此小明跑步的速度为，故③正确；由图知小华到学校的时间为7：13，故④错误．故答案为：①③【点睛】本题主要考查了用图像法表示变量之间的关系，读懂题意，能从所给图像中获取信息是解题的关键．16．(1)(2)【分析】本题考查整式的混合运算，熟练掌握运算法则是解答本题的关键．（1）利用单项式乘以单项式及单项式除以单项式运算法则进行计算即可；（2）根据完全平方公式和平方差公式将题目中的式子展开，然后合并同类项即可．【思路点拨】（1）；（2）．17．，本题考查了整式混合运算的化简求值，绝对值的非负性，熟练掌握运算法则及乘法公式的应用是解题的关键．【思路点拨】解：原式．，，，解得，．当，时，原式．18．(1)见解析(2)【分析】本题主要考查了几何图形中角度的计算，角平分线的定义，尺规作图—作一个角等于已知角：（1）根据作一个角等于已知角的尺规作图方法作即可得到答案；（2）先求出，再由角平分线的定义得到，则．【思路点拨】（1）解：如图所示，即为所求；（2）解：∵，，∴，∵平分，∴，∴．故答案为：．19．【分析】本题主要考查了平行的性质，角平分线的定义；由角平分线的定义得，由平行线的性质得，即可求解；掌握“两直线平行，内错角相等．”是解题的关键．【思路点拨】解：，，平分，，，．20．(1)放水时间，游泳池的存水；(2)见解析；(3)．【分析】本题考查了函数的基础知识：变量，求函数关系式等知识；（1）根据题中表格即可完成；（2）根据排水孔以每小时78立方米的速度放水，即可完成填写表格；（3）根据关系式：存水量等于原有水量减去放出的水量，即可列出函数关系式．【思路点拨】（1）解：由题意知，两个变量分别是：放水时间及游泳池的存水；（2）解：根据每小时放水78立方米，完成表格如下：放水时间/小时1234567游泳池的存水/立方米858780702624546468390（3）解：与的函数关系式为．21．(1)(2)(3)【分析】本题考查整式的混合运算的应用，代入求值，掌握整式的乘法运算法则是解题的关键．（1）利用长宽表示长方行的面积即可；（2）运用长方形的面积正方形的面积解题即可；（3）代入，的值计算解题．【思路点拨】（1）解：长方形地块的面积；（2）绿化的面积是：；（3）当，时，．22．(1)(2)，(3)(4)16【分析】本题考查完全平方公式的几何背景，用不同的方法表示同一个图形的面积是得出等量关系式的关键．（1）由拼图可知，图②阴影部分是边长为的正方形；（2）方法一，直接利用正方形的面积公式表示阴影部分的面积；方法二，从边长为的大正方形减去四个长为，宽为的矩形面积即可；（3）由（2）的两种方法求阴影部分的面积可得等式；（4）将的变形为：即可求解．【思路点拨】（1）解：由拼图可知，阴影部分是边长为的正方形，故答案为：；（2）方法一：直接利用正方形的面积公式得正方形的面积为；方法二：从边长为的大正方形减去四个长为，宽为的矩形面积即为阴影部分的面积，即；故答案为：，；（3）由（2）的两种方法可得，；故答案为：；（4）．，，．23．探究发现：；变式拓展：有变化，,证明见解析；学科融合：或【分析】本题主要考查了平行线的判定与性质，分析入射光线的不同位置是做本题的关键．探究发现：过点E作，由平行线的性质可得，则有，，从而可求解；变式拓展：利用平行线的性质可得，再由三角形的外角性质得，从而可求解；学科融合：分两种情况：如果是锐角，；如果是钝角，，由平行线的性质求出，，从而求出的度数．【思路点拨】探究发现：过点作，如图，∴，，，变式拓展：有变化，，证明：如图，，是的外角，，；学科融合：如图，∴∴∵∴在图1的情况下，在图2的情况下，的度数为或。

2024-2025学年人教版八年级上册数学期中复习提升试卷【含答案】

A． 40°
B． 45°
）
D． 2,3
）
C． 50°
D． 60°
3．如图， BD 是 V ABC 的角平分线， AE ^ BD ，垂足为 F ，若 ÐABC = 36° ， ÐC = 44° ，则
ÐEAC 的度数为（）
A． 18°
B． 28°
C． 36°
D． 38°
4．如图，在中， AB = AC ， ÐB = 55° ， P 是边上 AB 的一个动点(不与顶点 A 重合)，
数．
19．如图 1，在 V ABC 中， AB = AC ，D 是 BC 的中点，过点 B 作 BE ^ AC ，垂足为 E，连
接 AD 交 BE 于点 F．
(1)猜想 ÐCBE 与 ÐCAD 的数量关系，并说明理由；
(2)P 是射线 EB 上的点，过点 C 作 CG // EB 交 PD 的延长线于点 G．
1
2
关于 x 的方程 x + mx + 2 - m = 0 的两个实数根，求 V ABC 的周长．
2
24．提出问题：如图 1，将三角板放在正方形 ABCD 上，使三角板的直角顶点 P 在对角线
AC 上，一条直角边经过点 B，另一条直角边交边 DC 与点 E，求证：PB=PE
积是（
A．5
）
B．7
C．7．5
D．10
8．如图，已知∠B＝20°，∠C＝25°，若 MP 和 QN 分别垂直平分 AB 和 AC，则∠PAQ 等于
（）
A．80°
B．90°
C．100°
D．105°
9．如图，在 Rt V ABC 中， ÐACB = 90° ， AC = 3 ， BC = 4 ， AB = 5 ， AD 是 Ð BAC 的平分

人教版七年级上册期中数学复习试卷(含答案)

【详解】解：因为、互为相反数
所以a+b=0，
∵ 、互为倒数，∴cd=1
的绝对值是2,m=±2
=0±2-3
原式=-1或原式=-5
23.【答案】（1）前三天共生产297个；
（2）24个；（3）42490元．
【解析】
【分析】（1）三天的计划总数加上三天多生产的辆数的和即可；
（2）求出超产最多数与产量最少数的差即可；
A 640×104B. 64×105C. 6.4×106D. 6.4×107
4.在数轴上把数2对应的点移动3个单位长度后所得的点表示的数是()
A. 5B.－1C. 5或－1D.不确定
5.下列各式可以写成的是（）
A. B.
C. D.
6.若数轴上表示－1和－3的两点分别是点A和点B，则点A和点B之间的距离是（）
①数轴上的点都表示有理数
②﹣4a2b，3ab，5是多项式﹣4a2b+3ab﹣5的项
③单项式﹣23a2b3的系数是﹣2，次数是5
④ 是二次二项式
⑤互为相反数的两数之积一定为负数
⑥整数包括正整数和负整数．
A. 1B. 2C. 3D. 4
10.观察下列算式：
21=2，22=4，23=8，24=16，25=32，26=64，27=128，28=256，…根据上述算式中的规律，你认为220的末位数字是（）
【解析】
【分析】根据数轴上两点间的距离等于这两个数的差的绝对值列式计算即可得解．
【详解】解：AB=|-1-（-3）|=2．
故选：C．
7.【答案】A
【解析】
【详解】设这个代数式为A，则根据已知条件可得：
A-(-6a)=4a2-2a+5，
∴A=4a2-2a+5+(-6a)=4a2-2a+5-6a=4a2-8a+5