高一参考答案
河南省郑州市英语高一上学期2024-2025学年试题与参考答案
2024-2025学年河南省郑州市英语高一上学期试题与参考答案一、听力第一节（本大题有5小题，每小题1.5分，共7.5分）1、Listen to the recording and choose the best answer to the question.Question: What time does the train leave for Beijing?A. At 8:30 am.B. At 9:30 am.C. At 10:30 am.Answer: B. At 9:30 am.Explanation: In the recording, the speaker clearly states, “The train to Beijing leaves at 9:30 am from platform 3.” Therefore, the correct answer is B, which matches the given time.2、 Listen to the conversation and complete the missing information.Speaker 1: What are you going to do this weekend?Speaker 2: I’m planning to go hiking with some friends.Speaker 1: That sounds fun! Where are you going?Speaker 2: We’re going to Mount Tai. It’s famous for its beautiful scenery.Question: What are the speakers planning to do this weekend?Answer: They are planning to go hiking.Explanation: The conversation focuses on the two speakers discussing theirplans for the weekend. Speaker 2 states that they are planning to go hiking with friends, making it the clear answer to the question.3、 Listen to the passage and answer the question.Passage: The Great Wall of China is a historic landmark that stretches thousands of kilometers across northern China. It was built to protect the Chinese empire from invasion by nomadic tribes. The wall is made up of different sections, some of which date back to the Qin Dynasty (221-206 BC). Today, the Great Wall is a popular tourist attraction, drawing millions of visitors each year.Question: What is the main purpose of the Great Wall of China? Answer: To protect the Chinese empire from invasion by nomadic tribes. Explanation: The passage clearly states that the Great Wall of China was built for the purpose of protecting the Chinese empire from invasion by nomadic tribes. This is the main purpose mentioned in the text and matches the question directly.4、Question: Listen to the conversation and choose the correct answer to the question.What time does the school library open on weekdays?A. 8:00 a.m.B. 9:00 a.m.C. 10:00 a.m.Answer: AExplanation: In the conversation, the speaker mentions that the school library opens at 8:00 a.m. on weekdays, so the correct answer is A.5、Question: Listen to the short passage and answer the question.Where does the speaker want to go for lunch?A. The school cafeteria.B. A nearby restaurant.C. A fast-food chain.Answer: BExplanation: The speaker in the passage expresses a desire to try a new restaurant nearby for lunch, indicating they do not want to go to the school cafeteria or a fast-food chain. Therefore, the correct answer is B.二、听力第二节（本大题有15小题，每小题1.5分，共22.5分）1.Question:Listen to the recording and choose the correct answer to the question.•What time does the school library open on weekdays?A. 8:00 a.m.B. 9:00 a.m.C. 10:00 a.m.Answer: AExplanation: The recording states that the school library opens at 8:00 a.m. on weekdays, making option A the correct answer.2.Question:Listen carefully and select the activity that students will not be doing during theEnglish class next week.•Which of the following is NOT part of the class plan?A. Role-playing a conversation.B. Writing an essay on modern literature.C. Playing basketball outside.Answer: CExplanation: The recording mentions various activities planned for the English class, excluding playing basketball outside. Therefore, option C is not part of the class plan and is the correct answer.3.Question:Listen to the dialogue and determine who is organizing the English languageexchange program for high school students.•Who is responsible for organizing the program?A. The school’s English teacher.B. The student council president.C. The principal of the school.Answer: AExplanation: The dialogue clearly states that the school’s English teacher is the one organizing the English language exchange program for high schoolstudents, making option A the correct answer.4、 What is the main topic of the conversation?A. Travel plansB. Movie reviewC. Job interviewAnswer: AExplanation: The conversation revolves around two people discussing their upcoming travel plans, including destinations, modes of transportation, and activities they plan to do. The focus is clearly on traveling, hence the answer is A.5、 Where does the woman suggest they go for dinner?A. A Mexican restaurantB. A sushi barC. A pizza placeAnswer: BExplanation: The woman says, “How about we try that new sushi bar downtown? I’ve heard great things about it.” This suggests that she wants to go toa sushi bar for dinner, so the answer is B.6、 Why does the man hesitate to accept the invitation?A. He doesn’t like the woman.B. He has a prior engagement.C. He doesn’t like sushi.Answer: BExplanation: The man responds, “I’d love to, but I have a meeting scheduled for tonight that I can’t reschedule.” This indicates that he has a prior commitment, which is preventing him from accepting the invitation, so the answer is B.7、What time does the train to Beijing leave?A. 8:00 amB. 9:00 amC. 10:00 amAnswer: BExplanation: In the listening passage, the speaker clearly states that the train to Beijing departs at 9:00 am. Therefore, the correct answer is B.8、How does the speaker feel about the upcoming exam?A. ConfidentB. NervousC. UnpreparedAnswer: AExplanation: The speaker expresses a sense of preparedness and confidence by stating, “I’ve been studying hard, and I think I’m ready for the exam.” This indicates that the speaker feels confident about the upcoming exam, so the answer is A.9、Where is the book store located?A. Next to the libraryB. Across from the schoolC. Behind the supermarketAnswer: BExplanation: In the listening passage, the speaker mentions that the book store is situated directly opposite the school. This corresponds to the phrase “across from the school,” making B the correct answer.10、 What time does the train leave for Shanghai?A. 8:30 amB. 9:30 amC. 10:30 amAnswer: AExplanation: The audio clip mentions that the train to Shanghai departs at 8:30 am. Listen for the specific time mentioned in the recording.11、 Where is the speaker planning to have lunch?A. At a fast-food restaurantB. At a cafeC. At a traditional restaurantAnswer: BExplanation: The speaker says they are going to grab a quick bite at the cafe down the street. Pay attention to the speaker’s choice of location for lunch.12、 How does the man feel about the movie he just watched?A. ExcitedB. DisappointedC. NeutralAnswer: BExplanation: The man expresses disappointment in the movie, saying it was not as good as he expected. Listen for his emotional reaction and opinion about the movie.13.Question: What is the woman planning to do on Saturday?Answer: B) Go to the museum.Explanation: The dialogue mentions that the woman says, “I’m thinking of visiting the museum on Saturday. Have you been there before?” This directly indicates her plan to go to the museum.14.Question: How does the man feel about watching the movie tonight?Answer: A) Excited.Explanation: The man replies, “Absolutely! I’ve been waiting for this movie to come out. Let’s go!” This shows his enthusiasm and excitement about watching the movie.15.Question: Where does the conversation most likely take place?Answer: C) At a bookstore.Explanation: The dialogue refers to books and the man says, “I heard the new book by our favorite author is out. Let’s check if they have it here.”This suggests that the conversation is taking place in a bookstore. 三、阅读第一节（第1题7.5分，其余每题10分，总37.5分）First Question: Reading Comprehension - Section APassage:Title: Adapting to High School Life: A Freshman’s JourneyAs a new high school student in Zhengzhou, Henan Province, starting my first semester in Grade 10, I found the transition from middle school to be both exciting and challenging. Stepping into the halls of our esteemed school,I was filled with anticipation and a little bit of anxiety. However, throughdetermination and the support of my teachers and peers, I have gradually found my footing and embraced this new chapter of my academic journey.One of the most significant changes I encountered was the increased academic rigor. High school courses demanded more independent study and critical thinking skills than I had previously experienced. Math, especially, seemed to have taken on a whole new level of complexity. Yet, I soon realized that the key to success was not just memorizing formulas but understanding the underlying concepts and applying them creatively.Another aspect that stood out was the diversity of extracurricularactivities. From debate club to robotics team, there was something for everyone to explore and excel in. I joined the English literature club, which not only enriched my love for literature but also honed my language skillsand provided me with a platform to express my thoughts and ideas. Navigating social dynamics was another challenge. With a larger student body, making friends and finding a sense of belonging took some effort. However, participating in group projects and engaging in class discussions helped me forge meaningful connections with my classmates.Overall, my first semester in high school has been a rollercoaster ride filled with ups and downs. But through it all, I have learned valuable lessons about resilience, time management, and the importance of staying true to myself. As I look forward to the upcoming semesters, I am confident that with hard work and perseverance, I will continue to grow and thrive in this exciting new environment.Questions:1.What emotions did the author experience when starting high school in Zhengzhou?•Answer: The author experienced both excitement and anxiety when starting high school in Zhengzhou.2.How did the author adapt to the increased academic rigor in high school?•Answer: The author adapted to the increased academic rigor by understanding underlying concepts and applying them creatively, rather than just memorizingformulas.3.What extracurricular activity did the author join, and how did it benefit him/her?•Answer: The author joined the English literature club, which enriched his/her love for literature, honed language skills, and provided a platform for expressingthoughts and ideas.4.How did the author navigate social dynamics in high school?•Answer: The author navigated social dynamics in high school by participating in group projects and engaging in class discussions, which helped forge meaningfulconnections with classmates.Second PassageTitle: “Exploring the Wonders of English Literature in High School - A Freshman’s Journey”As a freshman in the English department at a prestigious high school in Zhengzhou, Henan Province, China, I embarked on a thrilling journey through the vast expanse of English literature during the first semester. From the depths of Shakespeare’s plays to the intricacies of modern poetry, every class was a new adventure, unlocking the doors to a world filled with emotions, histories, and philosophical reflections.The Article:Our English curriculum was meticulously designed to introduce us to a diverse range of literary genres and authors. We began with a study of William Shakespeare’s “Romeo and Juliet,” delving into the complexities of teenage love a nd the constraints of societal norms. The play’s poetic language and timeless themes resonated deeply, as we analyzed the characters’ motivations and the tragic consequences of their actions.Moving forward, we ventured into the realms of poetry, exploring the works of poets like John Keats and Emily Dickinson. Their verses painted vivid pictures of nature, love, and loss, leaving us awestruck by the power ofwords to evoke emotions. We learned about poetic devices such as imagery, metaphor, and symbolism, using them to enrich our own writing and deepen our appreciation for literature.One of the highlights of the semester was our in-depth analysis of modern literature. We studied works like George Orwell’s “1984,” which served as a chilling warning about the dangers of unchecked power and the erosion of privacy. Through discussions and debates, we grappled with the novel’s dystopian vision and its relevance to contemporary society.Finally, we concluded the semester with a unit on world literature, where we explored the unique cultural perspectives offered by authors from different parts of the globe. From the mystical tales of the Arabian Nights to the profound reflections on humanity in Chinua Achebe’s “Things Fall Apart,” each text broadened our horizons a nd fostered empathy for diverse cultures.Questions:1.What classic play by William Shakespeare did the students study as part of theirEnglish curriculum?•Answer: “Romeo and Juliet”2.What poetic devices did the students learn about during their study of poetry?•Answer: Imagery, metaphor, and symbolism.3.What modern novel served as a warning about the dangers of unchecked powerand the erosion of privacy?•Answer: George Orwell’s “1984”4.How did the unit on world literature contribute to the students’ understanding andappreciation of diverse cultures?•Answer: The unit on world literature broadened their horizons by exposing them to unique cultural perspectives offered by authors from different parts of the globe, fostering empathy and appreciation for diversity.Third Section: ReadingPassage:Title: Adapting to High School Life as a FreshmanStarting high school can be both exciting and overwhelming for freshmen, especially in English classes where the expectations and pace of learning often increase significantly. Here’s a glimpse into the experiences of Li Hua, a freshman in Grade 10 at Zhengzhou High School in Henan Province, as she navigates through her first semester of English studies.Li Hua always loved reading and writing, but when she stepped into her first English class, she was taken aback by the advanced vocabulary, complex sentences, and the emphasis on critical thinking skills. Initially, she found it challenging to keep up with the discussions and assignments. However, with perseverance and the support of her teachers and classmates, Li Hua gradually adapted and even thrived in her English studies.One of the key strategies that helped Li Hua was participating actively in class discussions. She overcame her initial shyness and began to contribute her ideas, which not only improved her speaking skills but also deepened her understanding of the subject matter. Additionally, she made it a habitto read English books and articles outside of class, which enriched her vocabulary and broadened her perspective.The school also organized various extracurricular activities related to English, such as debates, drama clubs, and writing workshops. Li Hua eagerly joined in, seeing them as opportunities to further enhance her language skills and connect with like-minded individuals. Through these experiences, she discovered her passion for creative writing and even won a prize in a school-wide essay competition.As the semester progressed, Li Hua noticed a remarkable transformation in herself. She was no longer intimidated by the challenges of high school English; instead, she embraced them with enthusiasm. Her grades improved, and she developed a strong sense of confidence in her abilities. Questions:1.What was Li Hua’s initial reaction to her first English class in high school?•Answer: Li Hua was taken aback by the advanced vocabulary, complex sentences, and the emphasis on critical thinking skills.2.How did Li Hua improve her speaking skills?•Answer: By participating actively in class discussions and overcoming her initial shyness.3.What extracurricular activities did Li Hua engage in to enhance her English skills?•Answer: Li Hua joined debates, drama clubs, and writing workshops organized by the school.4.What was the outcome of Li Hua’s efforts throughout the semester?•Answer: Li Hua noticed a remarkable transformation in herself, her grades improved, and she developed a strong sense of confidence in her English abilities.Fourth Question: Reading Comprehension - Section APassage:Title: A Fresh Start in High SchoolAs the crisp autumn air filled the campus of Zhengzhou High School, Li Hua, a new first-year student, stepped into the vibrant world of senior high school life. She was filled with both excitement and nervousness, knowing that this was the beginning of a new chapter in her academic journey.Li Hua’s first English class was particularly memo rable. The teacher, Mrs. Wang, greeted everyone warmly and introduced the curriculum for the semester, emphasizing the importance of active participation and critical thinking. The class was diverse, with students from different backgrounds and levels of English proficiency, but they all shared a common goal: to excel in their studies.During the first lesson, Mrs. Wang led a discussion on the topic “The Power of Dreams.” She shared personal stories of how dreams had inspired her and others to overcome obstacles and achieve success. The students were encouraged to share their own dreams and aspirations, creating a supportive and inspiring atmosphere.As the semester progressed, Li Hua found herself enjoying English more than ever before. The interactive lessons, engaging assignments, and supportive classmates all contributed to her growing confidence and enthusiasm for thesubject. She began to see the language as a tool for expressing herself and connecting with others from different cultures.Questions:1.What emotions did Li Hua feel when she first entered high school?•Answer: Li Hua felt both excitement and nervousness when she first entered high school.2.Who was Li Hua’s English teacher, and what did she emphasize in her first lesson?•Answer: Li Hua’s English teacher was Mrs.Wang. She emphasized the importance of active participation and critical thinking in her first lesson.3.What topic did Mrs.Wang lead a discussion on during the first lesson, and why wasit significant?•Answer: Mrs.Wang led a discussion on the topic “The Power of Dreams” during the first lesson. It was significant because it inspired the students to share their dreamsand aspirations, creating a supportive and inspiring atmosphere.4.How did Li Hua’s perspective on English change as the semester progressed?•Answer: As the semester progressed, Li Hua’s perspective on English changed. She began to enjoy the subject more and saw it as a tool for expressing herself andconnecting with others from different cultures.四、阅读第二节（12.5分）Title: Exploring the Wonders of the Amazon RainforestThe Amazon rainforest, spanning across nine South American countries, is one of the most biodiverse regions on Earth. It covers an area larger thanEurope and holds a staggering amount of plant and animal species that are still being discovered to this day. For students embarking on their English journey in their first semester of Senior One in Zhengzhou, Henan Province, understanding the significance of this natural wonder is not just an academic exercise but a call to appreciate the delicate balance of nature. The rainforest is often referred to as the “lungs of the planet” due to its vital role in regulating the Earth’s climate through the absorption of carbon dioxide and the release of oxygen. This process, known as photosynthesis, sustains life on our planet. However, the Amazon is facing an unprecedented threat from deforestation, driven primarily by agricultural expansion, cattle ranching, and mining activities. Indigenous communities within the rainforest have lived in harmony with nature for centuries, relying on its resources for survival. Their traditional knowledge and practices are crucial for conservation efforts, as they offer insights into sustainable living that modern society can learn from.Reading Comprehension Section 2 - Question 4:Question: Why is the Amazon rainforest often referred to as the “lungs of the planet”?A. Because it covers an area larger than Europe.B. Because it is the most biodiverse region on Earth.C. Becau se it regulates the Earth’s climate through photosynthesis.D. Because it holds a staggering amount of plant and animal species.Answer: CExplanation: The passage states that the Amazon rainforest is often referred to as the “lungs of the planet” due to i ts vital role in regulating the Earth’s climate through the absorption of carbon dioxide and the release of oxygen, a process known as photosynthesis. This process sustains life on our planet, making it the reason for the nickname “lungs of the planet.”The other options, while true about the Amazon rainforest, do not explain why it is called the “lungs of the planet.”五、语言运用第一节完形填空（15分）Title: A Fresh Start in High SchoolStarting my first semester in Grade 10, English class felt like a whole new world. A s I walked into the classroom on the first day, I couldn’t help but feel a mix of excitement and nervousness. Mr. Li, our teacher, stood at the front, welcoming us with a warm smile. He looked 1 every student in the eye, making us all feel special.The curriculum was challenging but engaging. Our first lesson was about 2 writing. Mr. Li explained that it’s not just about grammar and vocabulary;it’s also about expressing oneself creatively. He showed us examples of great essays, highlighting the use of descriptive language and how to builda strong argument.During class discussions, I found myself 3more than I ever had before. The topics were interesting, and the atmosphere was encouraging. Even when I made a mistake, Mr. Li would gently correct me and encourage me to try again. This made me feel 4 to participate and share my ideas.One of the most memorable activities was a debate on the topic, “Should technology be used in schools?” I was 5to be part of the “yes” team. Preparing for the debate was intense, but it was also incredibly rewarding.I learned how to research effectively and how to present my arguments persuasively.Apart from academics, Mr. Li also emphasized the importance of 6 skills. He organized group projects where we had to work together to complete a task. At first, I was hesitant about collaborating with others, but I soon realized that teamwork could be both productive and enjoyable.Another aspect that impressed me was the emphasis on 7 reading. Mr. Li introduced us to a wide range of literature, from classic novels to modern short stories. He encouraged us to read outside of class and to reflect on what we read. This helped me develop a deeper appreciation for literature and improved my writing skills.As the semester progressed, I found myself looking forward to English class every day. I had made friends with classmates who shared a passion for language and literature. We would often discuss our favorite books or 8 writing techniques during breaks.Looking back, I realize that my first semester in Grade 10 English was a crucial time for my personal and academic growth. It taught me the value of hard work, the joy of learning, and the power of 9. I am grateful to Mr. Li for his guidance and support throughout the semester.Cloze Test Questions:1.A. over B. at C. into D. on2.A. creative B. scientific C. mathematical D. historical3.A. speaking B. listening C. reading D. writing4.A. confident B. anxious C. bored D. discouraged5.A. chosen B. allowed C. invited D. forced6.A. social B. physical C. mental D. technical7.A. extensive B. limited C. formal D. casual8.A. compare B. exchange C. practice D. analyze9.A. communication B. imagination C. competition D. cooperation Answers:1.B (look at)2.A (creative writing)3.A (speaking more than before)4.A (feel confident to participate)5.A (chosen to be part of the team)6.A (social skills)7.A (extensive reading)8.B (exchange writing techniques)9.D (the power of cooperation)Explanations:1.B - “look at” is the correct preposition to use when indicating a focuson someone or something. Here, Mr. Li is looking at each student individually.2.A - The context mentions that the lesson is about expressing oneselfcreatively, hence the answer is “creative writing.”3.A - During class discussions, one typically speaks more, hence the answeris “speaking.”4.A - Mr. Li’s encouraging attitude makes the student feel confidentenough to participate.5.A - The student was actively chosen to be part of the “yes” team, notjust allowed, invited, or forced.6.A - The passage mentions group projects and working together, indicatingthe emphasis on social skills.7.A - The teacher introduces a wide range of literature, suggesting anemphasis on extensive reading.8.B - The students are discussing and sharing ideas, which involvesexchanging writing techniques.9.D - The passage mentions the importance of teamwork and collaboration,highlighting the power of cooperation.六、语言运用第二节语法填空（15分）Grammar Fill-in-the-Blank Section (Language Application, Part II)Passage:Welcome to Zhengzhou, the capital city of Henan Province, where the rich history intertwines with modernity. As a freshman in English, you are embarking on a new journey of learning, just as the autumn season gently(1)_____(paint) the city in hues of gold and crimson.This semester, our English classes will be (2)_____(full) of exciting activities and discussions that will broaden your horizons and enhance your(3)_____(communicate) skills. Remember, language is not just about grammarrules; it’s (4)_____(deep) a reflection of culture and thought.One of our first assignments is to create a time capsule that represents our lives (5)_____this moment. It’s a way to preserve memories and(6)_____(imagine) what the future holds. As you gather items, consider thewords you would use to describe each item and how they (7)_____(connect) to your personal story.Grammar is the backbone of any language, and we will delve (8)_____it, mastering the intricacies of tenses, clauses, and sentence structures. But don’t be intimidated – practice makes perfect!Remember to engage (9)_____the material actively, asking questions and seeking clarification whenever necessary. The more you participate, the more you will (10)_____(benefit) from this course.Fill-in-the-Blank Questions with Options:1.(1)gently_____(paint) the cityA. paintedB. is paintingC. have paintedD. paintsAnswer: B. is paintingExplanation: The use of “gently” suggests an ongoing, present action, hence the present continuous tense “is painting” is appropriate.2.(2)be_____(full) of exciting activitiesA. fillB. fullC. filledD. fillingAnswer: B. fullExplanation: The phrase “be full of” means to contain a lot of something, and here it’s used with the adjective “full” to describe the state of the classes.3.(3)enhance your_____(communicate) skillsA. communicateB. communicatedC. communicationD. communicatingAnswer: C. communicationExplanation: “Communication skills” is the correct noun form to describe the abilities related to conveying information.4.(4)it’s_____(deep) a reflection of culture and thoughtA. deepB. deeperC. deeplyD. deepestAnswer: C. deeplyExplanation: Here, “deeply” is used as an adverb to modify the verb “is,” indicating the extent of reflection.5.(5)represents our lives_____this momentA. atB. inB. onD. byAnswer: A. atExplanation: “At this moment” is a common phrase indicating a specific。
高一优化设计参考答案
高一优化设计参考答案高一优化设计参考答案高一是学生们迈入高中阶段的重要一年，也是他们开始接触到更加深入的学科知识和学习方法的一年。
优化设计作为高中数学的一部分，是培养学生分析问题、解决问题的能力的重要环节。
本文将为大家提供一份高一优化设计的参考答案，希望能够帮助同学们更好地理解和掌握这一知识点。
优化设计题目一：求解最大值题目描述：一块铁板长100厘米，要制作一个无盖的长方体容器，使得容器的体积最大。
求容器的最大体积。
解题思路：假设长方体的底边长为x厘米，高为h厘米，则长为100-2x厘米。
根据体积公式V=xh(100-2x)，我们可以将体积的表达式化简为V=-2x^2+100x。
为了求解最大值，我们需要对体积的表达式进行求导。
V'=-4x+100。
令V'=0，解得x=25。
将x=25代入体积的表达式，得到V=6250。
因此，容器的最大体积为6250立方厘米。
优化设计题目二：求解最小值题目描述：一个矩形花坛的周长为20米，求解花坛的最小面积。
解题思路：假设矩形的长为x米，宽为y米，则根据周长的条件可得2x+2y=20。
将该条件代入面积公式S=xy，得到S=x(10-x)。
为了求解最小值，我们需要对面积的表达式进行求导。
S'=10-2x。
令S'=0，解得x=5。
将x=5代入面积的表达式，得到S=25。
因此，花坛的最小面积为25平方米。
优化设计题目三：求解最短路径题目描述：一只蚂蚁在一条长为10米的直线上，从点A出发，要爬到点B。
蚂蚁的爬行速度为1米/分钟，但在距离点C的5米范围内，蚂蚁的速度会减慢为0.5米/分钟。
求解蚂蚁从点A到点B所需的最短时间。
解题思路：假设蚂蚁从A点到C点的距离为x米，则从C点到B点的距离为(10-x)米。
根据速度和距离的关系，我们可以得到蚂蚁从A点到C点所需的时间t1=x分钟，从C点到B点所需的时间t2=(10-x)/0.5分钟。
因此，蚂蚁从A点到B点所需的总时间为T=t1+t2=x+(10-x)/0.5分钟。
高一英语试卷及参考答案
高一英语试卷及参考答案一、听力部分（共20分）A. 短对话理解（每题1分，共5分）1. What time will the train leave?A. 9:00 a.m.B. 9:30 a.m.C. 10:00 a.m.2. Where does the conversation most probably take place?A. In a restaurant.B. At the airport.C. At a bus stop.3. What does the man suggest doing?A. Going to the cinema.B. Staying at home.C. Going for a walk.4. How much does the woman want to spend on the dress?A. $50.B. $100.C. $200.5. What is the relationship between the two speakers?A. Teacher and student.B. Boss and employee.C. Friends.B. 长对话理解（每题2分，共10分）听下面一段对话，回答6-10题。
6. Why is the woman upset?A. She lost her job.B. She missed the bus.C. She failed the exam.7. What does the man offer to do?A. Help with the homework.B. Give her a ride.C. Buy hera new dress.8. When is the woman's birthday?A. Next Monday.B. Next Tuesday.C. Next Wednesday.9. What does the man promise to do?A. Buy her a gift.B. Cook dinner for her.C. Write a letter of apology.10. What does the woman decide to do?A. Go to a party.B. Stay home and study.C. Go to the library.C. 短文理解（每题2分，共5分）听下面一段短文，回答11-15题。
高一数学参考答案(详版)
试卷答案1.【答案】B 【解析】{1,2}A =，{}|12B x x =−<<，A B ∴={}1，故选：B.2.【答案】D【解析】全称命题的否定是特称命题，因此命题“2,0x x x ∀∈+>N ”的否定是2,0x x x ∃∈+≤N ，因此命题“2,0x x x ∀∈+>N ”的否定是：2,0x x x ∃∈+≤N ，故选：D. 3.【答案】A【解析】(1)1f −=，((1))(1)134f f f −==+=，故选：A. 4.【答案】B【解析】根据不等式的性质，可知若a b >，则33a b >，故选：B. 5.【答案】B【解析】||1x >⇔1x >或1x <−，因此p 是q 的必要不充分条件，故选：B. 6.【答案】B【解析】1||y x x =+221,01,0x x x x ⎧+≥⎪=⎨−<⎪⎩，故可根据解析式画出函数图象，如选项B 所示，故选：B. 7.【答案】C【解析】0x >时()0f x <即为230x x −<，解得03x <<，又()f x 是奇函数，图象关于原点对称，所以0x <时()0f x <的解是3x <−，故选：C. 8.【答案】B【解析】由22m n +≥=，所以有22m n +≥2m n +≥，得24m n +≥，所以2m n +≥，当且仅当1m n ==时等号成立.所以2122127m n m n ++++≥++=.故选：B. 9.【答案】ACD【解析】A 中x 不一定大于0，故错误；C 中0a =时不等式显然恒成立，故错误；D 中0c ≤时结论错误.故选：ACD. 10.【答案】BD【解析】化简得,[1,)A B ==+∞R ，可知B A ⊆,所以A B ≠,A B B =,故选：BD. 11.【答案】BC【解析】()f x 的图象可由|21|x y =−通过上下平移得到，作出|21|x y =−的图象如下图：可知下移小于1个单位则()f x 图象与x 轴有两个交点，所以A 错误; 下移超过1个单位，则只有一个交点，故B 正确; 若上移则没有交点，所以C 正确;只有一个交点时，显然可以不平移，或者下移超过1个单位，故D 错误. 故选：BC. 12.【答案】ABC【解析】令0x y ==得(0)(0)(0)f f f +=，即得(0)0f =，A 正确；在定义域范围内令y x =−得()()(0)0f x f x f +−==，即得()f x 是奇函数，B 正确；令1x x =，2y x =−，且12x x <，所以12()()f x f x −=121212()()()1x xf x f x f x x −+−=−，又120x x −<且111x −<<，211x −<<，所以122112(1)()(1)(1)0x x x x x x −−−=+−>，即1212101x x x x −−<<−，所以12())0(f x f x −>，所以()f x 是单调减函数，C 正确.故选：ABC.13.【答案】52【解析】12041)9−⎛⎫+= ⎪⎝⎭1293511422⎛⎫+=+= ⎪⎝⎭.14.【答案】53【解析】由函数为幂函数知1m =，又代入点得2,α=即31222α=，解得23α=，所以函数为23y x =，所以251.33m α+=+= 15.【答案】1 470.15【解析】依题意可知，四天后的价格为221500(110%)(110%)1470.15⨯+⨯−= . 16.【答案】1(,)6+∞【解析】由条件可知5[2,]2x ∈时()0f x >恒成立，即220x kx +−≥恒成立，化简为2k x x≥−恒成立.因为函数2y x x =−在5[2,]2x ∈上为减函数，所以max 2()1x x−=−，可得1k ≥−.又二次函数2()2f x x kx =+−的对称轴为122k x =−≤，所以()f x 在5[2,]2上单调递增，所以min max 5517()(2)22,()()224f x f k f x f k ==+==+，要使以123(),(),()f x f x f x 为长度的线段能围成三角形，只需三个值中两较小值的和大于最大值，即5172(22)24k k +>+，解得1.6k > 17.【答案】（1）{|15}UA x x x =≤−>或；（2）50,4⎛⎤⎥⎝⎦. 【解析】（1）依题意化简得{|15}A x x =−<≤， ..........3分又全集U =R ,所以{|15}UA x x x =≤−>或. .....................5分（2）因为{|4,0}B x a x a a =≤≤>，B A ⊆，所以145a a >−≤且， ...................................................8分 解得514a −<≤， 又0a >，所以a 的取值范围是50,4⎛⎤⎥⎝⎦. .................10分18.【答案】（1）(,2][3,)−∞−+∞；（2）[4,53].【解析】（1）因为()f x 在(,]a −∞−上递减，在[,)a −+∞上递增，.........................2分所以()f x 要在[3,2]−单调需满足32a a −≤−−≥或， ..................5分 解得a 的取值范围是(,2][3,)−∞−+∞. .........................................6分 （2）由()f x 是偶函数得0a =，所以2()4f x x =+， ...................8分 所以2()(1)4[4,6]g x x x =++∈−，， .......................................9分 所以()g x 在[4,1]−−上递减，在(1,6]−上递增， ..................................10分 又(1)4(6)53,(4)13g g g −==−=，，所以()g x 值域是[4,53]. ........................................................12分19.【答案】证明见解析【解析】（1）222(1)a b a b +−+−22(21)(21)a a b b =−++−+22(1)(1)0a b =−+−≥，...............4分当且仅当1a b ==时等号成立， .....................................................5分 所以222(1)a b a b +≥+−，当且仅当1a b ==时等号成立. ......6分 （2）由条件有(1)4a b ++=，且0,10a b >+>， .....................7分 又14114114(1)()(5)14141b a a b ab a b a b ++=+++=+++++1(54≥⨯+19(54)44=⨯+=， ...............................10分当且仅当141b a ab +=+，即12b a +=时等号成立，此时由3a b +=得45,33a b ==， ......................................................12分即证.20.【答案】（1）()f x 在1[,)2+∞单调递增，证明见解析；（2）12⎧⎫⎨⎬⎩⎭.【解析】（1）1m =时，21()2xx f x −+=，()f x 在1[,)2+∞单调递增. .......................2分证明如下：记21u x x =−+，任取1212x x ≤<，则22121122(1)(1)u u x x x x −=−+−−+1212()(1)x x x x =−+−，............................4分 因为1212x x ≤<，所以12120,10x x x x −<+−>，所以1212()(1)0x x x x −+−<，即有120u u −<，所以12u u <，所以1222u u <，即12()()f x f x <，所以()f x 在1[,)2+∞上单调递增. ...................................6分（2）()f x 的值域是)+∞，即21-1222mxx +≥=，所以2112mx x −+≥且取到最小值12，所以有2min 1(1)2mx x −+=，...............8分①0m =时，不符合要求；②0m ≠时，则有0m >且41142m m−=，解得12m =，.......................................11分综上可知：12m =，即m 的取值范围是1{}2. ............................................12分21.【答案】（1）生产20万箱时，平均每万箱成本最低，为56万元；（2）130. 【解析】（1）设生产x 万箱时平均每万箱的成本为W ，则218048805485x xx W x x++==++， ...................................................................3分因为0x >，所以8085x x +≥=，当且仅当805x x=，即20x =时等号成立. ……5分所以min 84856W =+=，当20x =时取到最小值，即生产20万箱时平均每万箱成本最低，最低成本为56万元. ...............................6分 （2）设生产x 万箱时所获利润为()h x ，则21()100(4880)5h x x x x =−++，即21()5280(0)5h x x x x =−+−≥，， .........................9分即21()(130)33005h x x =−−+，所以min ()(130)3300h x h == ，............................................................................................11分 所以生产130万箱时，所获利润最大为3 300万元. ..............................12分22.【答案】（1）(5,2)(3,)−+∞；（2）当162a −>时，()min F x =；当162a −≤时，()min F x =8822a −+. 【解析】（1）由条件可知函数()f x 在R 上单调递减，且是奇函数, ...................................1分所以(0)0f =，则不等式即为211(2)(0)2x f f x −+<−， 因为()f x 在R 上单调递减， ....2分所以不等式等价为211202x x −+>−，即221502x x x +−<−，即为2215020x x x ⎧+−<⎨−>⎩或2215020x x x ⎧+−>⎨−<⎩，解得52x −<<或3x >, .........................................................4分 所以不等式的解集为(5,2)(3,)−+∞. ..........................................................5分（2）由（1）得()4f x x =−，函数()()44()22x xa F x g f x −−==+， 令42x t −=，在(,2]−∞上82t −≥，设函数()a G t t t=+， ...................6分①当0a ≤时，()aG t t t=+在8[2,)−+∞上递增， 所以8min ()(2)G t G −==8822a −+，所以函数()()()F x g f x =在(,2]−∞上的最小值为8822a −+； ...........8分②当162a −>时，()aG x t t=+≥， 所以函数()()()F x g f x =在(,2]−∞上最小值为； ③当1602a −<≤时，()aG x t t=+在8[2,)−+∞上递增，所以8min ()(2)G t G −==8822a −+，所以函数()()()F x g f x =在(,2]−∞上的最小值为8822a −+. ..........11分 综上，当162a −>时，函数()F x 在(,2]−∞上最小值为，当162a −≤时，函数()F x 在(,2]−∞上的最小值为8822a −+. ....................12分。
高一英语导学案参考答案
高一英语导学案参考答案一、词汇练习1. 根据所给的首字母提示，完成下列单词。
- a) intelligent - 聪明的- b) unique - 独特的- c) obvious - 明显的- d) confident - 自信的- e) devoted - 投入的2. 选择正确的词填空。
- a) She is interested in music. (interested)- b) The book is worth reading. (worth)- c) I am responsible for the project. (responsible)- d) He is familiar with the area. (familiar)- e) The problem is complex and needs careful consideration. (complex)3. 根据语境，使用适当的形式填空。
- a) She has improved her English skills recently. (improve)- b) The teacher explained the concept clearly. (explain) - c) They achieved their goal through hard work. (achieve) - d) The children were amazed by the magic show. (amaze) - e) He practiced the piano every day. (practice)二、语法练习1. 将下列句子改为被动语态。
- a) The teacher will give the students some advice. (The students will be given some advice by the teacher.)- b) They have built a new bridge in the city. (A newbridge has been built in the city.)- c) Someone has stolen my bike. (My bike has been stolen.) - d) We will invite the famous singer to the concert. (The famous singer will be invited to the concert by us.)- e) The company produces high-quality products. (High-quality products are produced by the company.)2. 使用正确的时态填空。
(完整版)人教版高一化学必修一课后习题答案
《化学（必修）1》 课后习题参考答案第一章第一节 p101．C 2．C 3．CD 4．略5．乳化原理或萃取原理 6．利用和稀盐酸反应产生气体7．不可靠，因为碳酸钡也是白色沉淀，碳酸根干扰了硫酸根的检验。
由于硫酸钡是难溶的强酸盐，不溶于强酸，而碳酸钡是难溶弱酸盐，可溶于强酸，因此可先取样，再滴入氯化钡溶液和几滴稀硝酸或稀盐酸，如果出现白色沉淀，说明有硫酸根。
第一章第二节 p171．D 2．B 3．B 4．B5．65 mg/dL ~110mg/dL （1mmol=10-3mol ）6．这种操作会使得结果偏低，因为倒出去的溶液中含有溶质，相当于容量瓶内的溶质有损失。
7．14mL8．n(Ca)：n(Mg)：n(Cu)：n(Fe)=224：140：35：2 9．1）0.2mol 2）Cu2+：0.2mol Cl-：0.4mol 10．40 （M=40 g/mol ，该气体的相对分子质量为40。
）第一章复习题 p191．C 2．B 3．A 4．BC 5．C6．(1) 不正确。
（标况下或没有明确O2的状态）（2）不正确。
（溶液体积不为1L ）或氢氧化钠加入水中后，形成溶液的体积不能确定 （3）不正确。
（水标况下不是气体）或水在常温下是液体（4）正确。
（同温同压下气体的体积比即为物质的量之比，也就是分子个数比） 7．（1）5% （2）0.28mol/L 8．9．1.42 g ， 操作步骤 （1）计算所需硫酸钠的质量，m （硫酸钠）=0.2mol/L×0.05L×142g/mol=0.56g（2） 称量（3）溶解并冷却至室温（4）转移至50ml 容量瓶，并洗涤小烧杯2次~3次，将洗涤液转移到容量瓶中，轻轻摇动容量瓶，使溶液混合均匀铁 粉 过 滤Fe 、CuFeSO 4溶液稀硫酸过 滤FeSO 4溶液蒸发 结晶第二章第一节p291．②⑧①④⑤⑥⑦⑩⑨2．树状分类法略6．BD7．胶体区别于其他分散系得本质特征是胶体粒子的大小在1~100nm范围。
2024江西省金太阳高一年级统一调研测试数学参考答案
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高一化学必修1课本答案
4.完成下列表格
分散系
分散质粒 子大小
主要特征
浊液 >100 nm
不稳定， 不均一
溶液 <1 nm
稳定，均 一
胶体
1～100 nm
较稳定， 均一
举例
泥浆水 饱和NaCl 溶液 豆浆
5.提示：用丁达尔效应可以区分
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6.世界上有数百万计的老人患老年性 痴呆症。许多科学家经过研究发现，老 年性痴呆症与铝有密切关系。同时还发 现，铝对人体的脑、心、肝、肾的功能 和免疫功能都有损害。因此，世界卫生 组织于1989年正式将铝确定为食品污染 物而加以控制。提出成年人每天允许铝 摄入量为60 mg。
AgNO3溶液，有白色沉淀生成的是稀盐酸， 最后一种是稀硝酸。
AgNO3+HCl=AgCl↓+HNO3
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7.区别的方法有很多，以下方法仅供 参考（只要求学生掌握其中三四种方法即 可）。
（1）密度法：浓硫酸的密度比稀硫酸 大得多，可以测试这两支试管相同体积液 体的重量，重量大的是浓硫酸，重量小的 是稀硫酸（或用密度计进行测试）。
（4）露置法：浓硫酸具有吸水性，而稀 硫酸无此特性。分别称取等量的两种硫酸 ，露置在空气中一段时间后再称量，质量 明显增加的是浓硫酸，另一种是稀硫酸。
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（5）吸水法：在两支试管中各加入少量胆 矾，再分别加入几滴硫酸，晶体溶解且溶液变 蓝的是稀硫酸，若蓝色晶体变白，则加入的酸 是浓硫酸。
（6）钝化法：取已去氧化膜的两块铁片或 铝片，分别放入盛有两种硫酸的试管中。无明 显现象的是浓硫酸，有气泡产生的是稀硫酸。 （或取已去氧化膜的两块铁片或铝片，分别放 入盛有两种硫酸的试管中片刻，取出后用水洗 净，再分别浸入CuSO4溶液中，过一会儿后如 果有红色物质析出，则原试管所盛的是稀硫酸 ；若无现象，则原试管所盛的是浓硫酸。）
人教版高一化学必修一课后习题答案
人教版高一化学必修一课后习题答案《化学（必修）1》课后习题参考答案第一章第一节 p10 1．C2．C3．CD4．略5．乳化原理或萃取原理6．利用和稀盐酸反应产生气体7．不可靠，因为碳酸钡也是白色沉淀，碳酸根干扰了硫酸根的检验。
由于硫酸钡是难溶的强酸盐，不溶于强酸，而碳酸钡是难溶弱酸盐，可溶于强酸，因此可先取样，再滴入氯化钡溶液和几滴稀硝酸或稀盐酸，如果出现白色沉淀，说明有硫酸根。
第一章第二节 p17 1．D 2．B 3．B4．B5．65 mg/dL ~110mg/dL（1mmol=10-3mol）6．这种操作会使得结果偏低，因为倒出去的溶液中含有溶质，相当于容量瓶内的溶质有损失。
7．14mL8．n(Ca)：n(Mg)：n(Cu)：n(Fe)=224：140：35：2 9．1）0.2mol2）Cu2+：0.2molCl-：0.4mol 10．40（M=40 g/mol，该气体的相对分子质量为40。
）第一章复习题 p19 1．C 2．B 3．A 4．BC 5．C 6．(1)不正确。
（标况下或没有明确O2的状态）（2）不正确。
（溶液体积不为1L）或氢氧化钠加入水中后，形成溶液的体积不能确定（3）不正确。
（水标况下不是气体）或水在常温下是液体（4）正确。
（同温同压下气体的体积比即为物质的量之比，也就是分子个数比）7．（1）5%（2）0.28mol/L 8．9．1.42 g，操作步骤（1）计算所需硫酸钠的质量，m（硫酸钠）=0.2mol/L×0.05L×142g/mol=0.56g（2）称量（3）溶解并冷却至室温（4）转移至50ml容量瓶，并洗涤小烧杯2次~3次，将洗涤液转移到容量瓶中，轻轻摇动容量瓶，使溶液混合均匀第二章第一节 p29 1．②⑧①④⑤⑥⑦⑩⑨ 2．树状分类法略5．分散系分散质粒子大小主要特征举例浊液>100 nm不稳定，不均一泥浆水溶液稳定，均一饱和NaCl溶液胶体1～100 nm较稳定，均一豆浆6．BD7．胶体区别于其他分散系得本质特征是胶体粒子的大小在1~100nm范围。
21世纪报高一版【参考答案】
阅读理解衣袂当风“汉服热”，恋其“表”更不忘其“里” Turning ‘hanfu’into a hobby1-4 BBCA1.B。
根据文章第二段最后两句话可知，人们对汉服有了更深的认识，故选B。
2.B。
根据文章第三段“They care more about how original hanfu styles are ...”可知，资深爱好者更关心汉服在历史上原本是什么样，故选B。
3.C。
根据文章最后一段第一句话可知，提及九花亭的目的是举例说明汉服文化对商业的影响，故选C。
4.A。
通读文章可知，文章主要阐述了汉服文化在近些年的发展变化，故选A。
一张纸折出百斤重蜗牛，95后小伙再创世界纪录 Folding paper with passion1-4 BBCC1.B。
由第一段可知，该作品创造了吉尼斯世界纪录，故选B。
2.B。
由第三段第二句话可知，该作品灵感来源于斐波那契数列，故选B。
3.C。
通读第四至六段可知，该部分主要介绍了制作该艺术品的困难，故选C。
4.C。
由最后一段可知，裴浩正希望人们在看到这件作品时，能感受到自己内心的美，故选C。
如何改变“招蚊子体质”？Soap science beats away bug bites Leaving for London1-4 BCDB1.B。
由前三段可知，该研究的主要目的是找出能使蚊子远离的肥皂气味，故选B。
2.C。
由第四段可知，研究人员发现化学物质和人体气味混合会影响蚊子的行为，故选C。
3.D。
由倒数第二段第二句话可知，该物质会附在人类皮肤上并会吸引蚊子，故选D。
4.B。
由最后一段可知，科学家认为改变饮食或可以使人体防蚊，故选B。
Leaving for London1-3 ABD1. A。
细读第二段，从“I can see you now ... your shoulders shaking, and tears on your cheeks. But at the time I was so excited by my good luck that I forgot what I owed to Joe ...”可知，这段是现在的Pip在回忆当年事时心中的反思和感慨，他现在才回忆起当时Joe是多么难过，但当时的他被从天而降的好运冲昏了头脑，忘记了Joe对他的恩情，这也说明Pip其实并不完全是一个忘恩负义的人，也不是真的看不起Joe，故答案为A。
北京市海淀区2023-2024学年高一上学期期末考试数学答案
第 1 页（共 5 页）海淀区2023-2024学年第一学期期末练习高一数学参考答案及评分建议一、选择题：二、填空题（共5小题，每小题4分，共20分）（11）(1,)+∞ （12）3， ＞（13）0（答案不唯一），(4,4)−（14）(,)−∞+∞，215（15）①② 两空题，第一空2分，第二空２分，15题对一个给2分，有错的则给０分三、解答题（共4小题，共40分）（16）（共９分）解：（Ⅰ）设选中的参观单位恰好为“C ：古建筑及历史纪念建筑物”为事件A .……1分所以122()183P A ==． ……3分 （Ⅱ）设两人选择的参观单位恰好在同一个区为事件B , ……4分所以355()41216P B =⨯= . ……7分 （Ⅲ）12P P <． ……9分（17）（共９分）解：（Ⅰ）因为220x x −−<，所以(2)(1)0x x −+<，所以12x −<<， 所以{|12}A x x =−<<． ……1分又53||22x −≥，所以5322x −≥或5322x −≤−， ……2分第 2 页（共 5 页）所以4x ≥或1x ≤，所以{|41}B x x x =≥≤或， ……3分{|14}B x x =<< R ……4分 所以{|42}A B x x x =≥<或，{|12}A B x x =<< R ． ……6分（Ⅱ）因为22(24)40x m x m m −+++≤，所以((4))()0x m x m −+−≤，所以4m x m ≤≤+，所以{|4}M x m x m =≤≤+． ……7分 因为B M =R ，所以144m m ≤⎧⎨+≥⎩……8分所以m 的取值范围是{|01}m m ≤≤． ……9分（18）（共11分）解：选择①（Ⅰ）因为()()0f x f x +−=，故[ln(1)ln(1)][ln(1)ln(1)]0x k x x k x −+++++−=，所以22ln(1)ln(1)0x k x −+−=,所以2(1)ln(1)0k x +−=，所以1k =−. ……3分（Ⅱ）当1k =−时，12()111x F x x x −==−+++，()F x 在(0,1)上单调递减， ……4分 证明如下：任取12,(0,1)x x ∈，且12x x <， ……5分 因为212122)(1)()()1(11F F x x x x +−−++−+=− ……6分 21122()0(1)(1)x x x x −=>++ ……7分 所以12()()F x F x >，所以函数()F x 在(0,1)上单调递减. ……8分（Ⅲ）()g x 在区间()1,0−上存在一个零点. ……9分由前两问知，1k =−时，函数()f x 是奇函数，且在(1,0)−上单调递减， 故函数1()()2=++g x f x x在(1,0)−上单调递减，第 3 页（共 5 页） 又1()ln 322ln 302−=−+=>g ，15()ln 2043−=−<g ， 所以存在唯一的0(1,0)∈−x ，使0()0=g x ，所以()g x 在区间()1,0−上存在一个零点. ……11分 选择②（Ⅰ）因为()()f x f x =−，且11x −<<，故ln(1)ln(1)[ln(1)ln(1)]x k x x k x −++=++− 所以1(1)ln 01x k x−−=+, 所以1k =. ……3分 （Ⅱ）当1k =时，2()(1)(1)1F x x x x =−+=−.从而()F x 在(0,1)上单调递减， ……4分 证明如下：任取12,(0,1)x x ∈，且12x x <， ……5分 222121(1)(1)()()x F F x x x −−−−= ……6分22212121()()0x x x x x x =−=−+> ……7分所以12()()F x F x >，所以函数()F x 在(0,1)上单调递减. ……8分 （Ⅲ）()g x 在区间()1,0−上存在一个零点. ……9分由前两问知，1k =，函数()f x 是偶函数，且在(1,0)−上单调递增，故函数()()2=++g x f x x 在(1,0)−上单调递增，又(0)(0)220=+=>g f ，2(ln(1()20g =−=， 所以存在唯一的0(1,0)∈−x ，使0()0=g x ，所以()g x 在区间()1,0−上存在一个零点. ……11分（19）（共11分）解：（Ⅰ）()g x 与()h x 关于()f x 唯一交换, 不是任意交换的 ……2分令()()()()f g x h f x =，即22(1)1x x +=−，解得1x =−．第 4 页（共 5 页）所以存在唯一的1x =−∈R ，使得()()()()f g x h f x =，即()g x 与()h x 关于()f x 唯一交换，存在0x =∈R ，使得()()()()f g x h f x ≠，即()g x 与()h x 关于()f x 不是任意交换的． ……4分 （Ⅱ）依题意，x ∀∈R ，()()()()f g x h f x =．因为x ∀∈R ，22()[()2](2)()f x a x a x f x −=−+=+=，所以x ∀∈R ，()()()()()()()()f g x h f x h f x f g x −=−==．所以x ∀∈R ，2222[(1)2][(1)2]a x bx a x bx −−+=+−+，所以2222(1)(1)x bx x bx −−=+−，即2(22)(2)0x bx −=对x ∈R 成立，所以0b =． ……7分 下面检验0b =时，存在函数()h x 使得()g x 与()h x 关于()f x 任意交换． 即验证存在函数()h x ，使得x ∀∈R ，()()()()f g x h f x =，即()222[(1)2](2)a x h a x −+=+．令2(2)t a x =+，2t a ≥， 则22222611[(1)2][(21)2]t t at a a x a a a−+−+=−−+=． 令22611()x ax a h x a−+=， 则()22222611(2)()[(1)2]t at a h a x h t a x a −++===−+对x ∈R 成立， 综上，0b =． ……8分 （Ⅲ）依题意，存在唯一的0x ∈R ，使得()()00()()w g x f w x =．因为x ∀∈R ，()()f x f x −=，22()()11()g x x x g x −=−−=−=，e 11e ()()e 11e x xx xw x w x −−−−−===−++， 所以()()()()()00000()()()()()w g x w g x f w x f w x f w x −===−=−．第 5 页（共 5 页） 所以00x x −=，即00x =．所以()()(0)(0)w g f w =，即11e 12e 1a −−−=+． 所以e 12e 2a −=−+． ……9分 下面检验e 12e 2a −=−+时，()()()()w g x f w x =的解唯一． 因为e 12()1e 1e 1x x x w x −==−++，2()11g x x =−≥−，()1e e 0g x −≥>，()111e 1e 1g x −≤++， 所以()()1221e()11e 1e 11e g x w g x −−=−≥−=+++，当且仅当()1g x =−，即0x =时取等号．又()2e 11e()[()2]2e 11e x x f w x a a −−=+≤=++，当且仅当e 10x −=，即0x =时取等号．所以()()()()w g x f w x ≥，当且仅当0x =时取等号．所以()()()()w g x f w x =的解唯一． 综上，e 12e 2a −=−+．……11分。
高一英语测试报参考答案
高一英语测试报参考答案一、听力部分1-5: BCABC6-10: CACBA11-15: BCBCA16-20: ABBAC二、单项选择21. A 考查时态，根据句意“他从大学毕业后一直在这里工作”，使用现在完成进行时。
22. C 考查非谓语动词，"being" 表示正在进行的动作，符合句意。
23. B 考查连词，"although" 表示尽管，引导让步状语从句。
24. D 考查固定搭配，"be similar to" 表示与...相似。
25. A 考查动词，"contribute to" 表示有助于。
26. C 考查固定短语，"take part in" 表示参加。
27. B 考查形容词，"available" 表示可用的，可得到的。
28. D 考查情态动词，"must have done" 表示过去一定做了某事。
29. A 考查名词，"progress" 表示进步。
30. C 考查副词，"frequently" 表示频繁地。
三、完形填空31. B 根据上下文，表示“尽管”。
32. A 表示“选择”。
33. C 表示“放弃”。
34. D 表示“完成”。
35. B 表示“成功”。
36. C 表示“实现”。
37. A 表示“决定”。
38. D 表示“挑战”。
39. C 表示“面对”。
40. B 表示“结果”。
四、阅读理解A篇：41. B 细节理解题，根据第一段内容，选择B。
42. C 推理判断题，根据第二段内容，选择C。
43. A 细节理解题，根据第三段内容，选择A。
B篇：44. D 细节理解题，根据第一段内容，选择D。
45. B 细节理解题，根据第二段内容，选择B。
46. A 推理判断题，根据第三段内容，选择A。
47. C 细节理解题，根据第四段内容，选择C。
金太阳高一地理参考答案
气候变化、生物多样性丧失、水土流失等。
环境保护的重要性
02
环境保护对于人类社会的可持续发展至关重要，保护环境就是
保护人类自己。
环境政策与法规
03
政府应制定相关政策与法规，限制过度开采和污染行为，加大
对环境保护的投入。
资源利用与保护
资源的分类
资源分为可再生资源和不可再生资源，如 水资源、森林、矿产等。
可持续发展概念
可持续发展的定义、原则、目标等基本信息。
区域可持续发展的影响因素
经济、社会、环境、技术等因素对区域可持续 发展的影响。
区域可持续发展的实践
3
不同区域可持续发展的实践案例及其效果。
04
环境保护与人类发展
环境问题与保护
环境问题的产生
01
由于人类活动对自然环境的破坏，导致环境问题日益突出，如
农业发展
农业是国民经济的基础，农业发展的影响因素包括气候、地形、政策等。不同地区的农业发展具有不同的特点，如发达国 家的农业现代化程度较高，发展中国家的农业现代化程度正在逐步提高。
交通运输
交通运输是经济发展的重要基础，包括铁路、公路、水路、航空等多种方式。不同地区的交通运输条件不同，如发达国家 的交通运输网络较为完善，发展中国家的交通运输网络正在逐步完善。
环境保护与人类发展答案
总结词
环境保护与人类发展是研究环境问题与人 类可持续发展的科学。
VS
详细描述
环境保护与人类发展关注环境问题的产生 、影响和解决途径，它强调人类活动与环 境之间的协调和可持续发展。
感谢您的观看
THANKS
05
参考答案
自然地理答案
总结词
自然地理是研究地球自然环境的科学，包括地形、气候、水文、土壤和生物等方面。
高一英语必修一参考答案
高一英语必修一参考答案Unit 1 - FriendshipSection A: Vocabulary1. 单词拼写（每题1分，共10分）- (1) 友谊：friendship- (2) 智慧：wisdom- (3) 财富：wealth- (4) 贫穷：poverty- (5) 争吵：quarrel- (6) 原谅：forgive- (7) 同情：sympathy- (8) 感激：gratitude- (9) 支持：support- (10) 理解：understanding2. 词义匹配（每题1分，共10分）- (1) A. 争吵- (2) B. 智慧- (3) C. 财富- (4) D. 贫穷- (5) E. 同情- (6) F. 原谅- (7) G. 感激- (8) H. 支持- (9) I. 理解- (10) J. 友谊Section B: Grammar1. 时态填空（每题1分，共10分）- (1) I have known him since I was a child.- (2) She has been studying English for three years.- (3) They have lived in this city since 2010.- (4) The film has been on for half an hour.- (5) He has worked here since he graduated from university.- (6) She has been reading the book for two hours.- (7) The baby has been crying since his mother left. - (8) We have been waiting for you for an hour.- (9) They have been married for ten years.- (10) The Smiths have owned this house for five years.2. 被动语态转换（每题1分，共10分）- (1) The letter was written by him.- (2) The problem has been solved by the students.- (3) The house was built by my grandfather.- (4) The books were borrowed by the students.- (5) The windows were cleaned by the workers.- (6) The cake will be baked by my mother.- (7) The flowers are being watered by my sister.- (8) The story was told by the old man.- (9) The homework has been finished by the children. - (10) The letter will be sent by the postman.Section C: Reading Comprehension1. 阅读理解（每题2分，共20分）- (1) A- (2) B- (3) C- (4) D- (5) A- (6) B- (7) D- (8) C- (9) A- (10) BSection D: Writing1. 写作（共30分）- 范文：（略）Unit 2 - English around the world Section A: Vocabulary1. 单词拼写（略）2. 词义匹配（略）Section B: Grammar1. 时态填空（略）2. 被动语态转换（略）Section C: Reading Comprehension1. 阅读理解（略）Section D: Writing1. 写作（略）Unit 3 - Travel JournalSection A: Vocabulary1. 单词拼写（略）2. 词义匹配（略）Section B: Grammar1. 时态填空（略）2. 被动语态转换（略）Section C: Reading Comprehension 1. 阅读理解（略）Section D: Writing1. 写作（略）Unit 4 - EarthquakesSection A: Vocabulary1. 单词拼写（略）2. 词义匹配（略）Section B: Grammar1. 时态填空（略）2. 被动语态转换（略）Section C: Reading Comprehension1. 阅读理解（略）Section D: Writing1. 写作（略）Unit 5 - Nelson Mandela - a modern hero Section A: Vocabulary1. 单词拼写（略）2. 词义匹配（略）Section B: Grammar1. 时态填空（略）2. 被动语态转换（。
2023-2024学年第一学期10月六校联合调研试题 高一数学参考答案
2023-2024学年第一学期10月六校联合调研试题参考答案【备注】第二问共5分，选②时，不等关系（※※）“写错”或“部分写错”，第二问最多得1分；18.解：（1）0)4)(6(2422<+−=−−x x x x ， ............................1分 ∴不等式的解集为：{}64|<<−x x . ...................................2分 []0)()12(2)13(22≤−+−=+++−a x a x a a x a x ..............................3分 当a a =+12，即1−=a 时，()012≤+x ，此不等式的解集为：{}1|−=x x ..................4分 当a a >+12，即1−>a 时，此不等式的解集为：{}12|+≤≤a x a x .......................5分 当a a <+12，即1−<a 时，此不等式的解集为：{}a x a x ≤≤+12| .......................6分【备注】区间表达或不等式形式也可以（2）记命题p 对应的集合为{}64|<<−=x x A ，当1−>a 时，q 对应的集合为{}12|+≤≤=a x a x B ；p 是q 的必要且不充分条件，则B ⊂≠A . ..........................................8分则满足： <+−>6124a a ，则254<<−a ， ........................................11分 又1−>a ，∴251<<−a . ..............................................12分 19. 解：（1）设10t a =−>，则1a t =+则22(1)3(1)25665t t t t y t t t t++++++===++ ………………………………4分5≥+ ………………………………5分当且仅当t =1a =时等号成立所以原式最小值为5 ………………………………6分【备注】没有写出取等条件扣1分，没有下最后的结论不扣分 （2）法一：由1a b ab +−可得11b a b +=− ………………………………8分则12222122(1)3111b a b b b b b b b ++=+=++=+−+−−−37≥= ……11分 当且仅当2,3b a ==时取“等号”所以2a b +最小值为7 ………………………………12分【备注】没有写出取等条件扣1分，没有下最后的结论不扣分法二：由1a b ab +−可得(1)(1)2a b −−=………………………………8分2(1)2(1)337a b a b +=−+−+≥+= ………………………………11分当且仅当2,3b a ==时取等号所以2a b +最小值为7 ………………………………12分【备注】没有写出取等条件扣1分，没有下最后的结论不扣分20．解：（1）由题意，若p 为真，则240a ∆=−≥解得22a a ≤−≥或，………………………………4分 （2）法一：若q 为真，2(1)20(1)(2)0x a x a x x a +−+−=⇔++−=，方程两根为-1和2a − ………………………………6分 则由题意得23a −>，所以1a <− ………………………………8分当,p q 均为假时，有221a a −<< ≥−，可得12a −≤< ………………………………10分 因此，如果,p q 中至少有一个为真时，12a a <−≥或 .………………………………12分 法二：设2()(1)2f x x a x a =+−+−若q 为真，则有(0)20(3)440f a f a =−< +< 解得1a <− ………………………………8分 当,p q 均为假时，有221a a −<< ≥−，可得12a −≤< ………………………………10分 因此，如果,p q 中至少有一个为真时，12a a <−≥或 ………………………………12分【备注】若讨论,p q 一真一假和两真：2p q a ≥真假：，21p q a −<<−假真：，,2p q a ≤−都真： ………………………………11分 所以，12a a <−≥或【考查内容】集合的综合运用.21.解：（1）由已知得：182≤<x ， .................................................1分 候车区宽为：x98m ， ..............................................................2分 200)196(100)1962(100−+=+−=xx x x y .............................4分 26002001962100=−⋅⋅≥x x ........................................................6分即2600≥y ，当且仅当 ≤<=182196x x x ， ................................7分即14=x 时”“=取到最小值2600元. ................................8分 （2）由（1）可知：≤<≤−+=+−1823300200)196(100)1962(100x x x x x ...................9分 即≤<≤+−1820196352x x x ， .............................10分 解得：187≤≤x ....................................11分 答：所需总费用不超过3300元时，187≤≤x . ................................12分从而对集合中的运算进行检验判断.。
英语周报参考答案高一
英语周报参考答案高一一、听力部分1. A) 根据对话内容，女士询问男士是否喜欢新买的帽子，男士表示喜欢，但更喜欢女士的帽子。
因此，正确答案是A。
2. B) 男士在询问女士是否愿意一起去看电影，女士回答说如果男士请客，她愿意去。
因此，正确答案是B。
3. C) 对话中提到了男士的妹妹正在学习法语，女士表示惊讶，因为她以为妹妹在学习西班牙语。
因此，正确答案是C。
4. D) 女士询问男士是否完成了作业，男士回答说没有，因为他忙于准备考试。
因此，正确答案是D。
5. E) 男士在询问女士是否愿意参加周末的聚会，女士表示她需要先询问父母。
因此，正确答案是E。
二、阅读理解A篇：1. 根据第一段，文章主要讨论了英语学习的重要性，正确答案是C。
2. 第二段提到了英语在全球范围内的广泛使用，正确答案是A。
3. 第三段中提到了英语作为国际商务和科技交流的语言，正确答案是B。
4. 第四段讨论了英语教育对个人职业发展的影响，正确答案是D。
B篇：1. 根据文章的标题和内容，正确答案是E。
2. 第一段提到了作者对英语的热爱，正确答案是F。
3. 第二段中作者提到了通过阅读提高英语水平，正确答案是G。
4. 第三段讨论了英语口语的重要性，正确答案是H。
三、完形填空1. 根据上下文，正确答案是“impressed”，表示对某人或某事感到印象深刻。
2. 正确答案是“efforts”，表示付出的努力。
3. 正确答案是“improvement”，表示进步或提高。
4. 正确答案是“encouraged”，表示受到鼓励。
5. 正确答案是“challenge”，表示挑战。
四、语法填空1. 正确答案是“which”，引导非限制性定语从句。
2. 正确答案是“has been”，表示现在完成时态。
3. 正确答案是“famous”，表示著名的。
4. 正确答案是“interested”，表示对...感兴趣。
5. 正确答案是“reading”，表示阅读。
五、短文改错1. 错误：and → but，表示转折关系。
高中高一化学必修一课后习题包括答案.docx
《化学（必修） 1》课后习题参考答案第一章第一节1．C2．C3．CD4．略5．乳化原理或萃取原理6．利用和稀盐酸反应产生气体7．不可靠，因为碳酸钡也是白色沉淀，碳酸根干扰了硫酸根的检验。
由于硫酸钡是难溶的强酸盐，不溶于强酸，而碳酸钡是难溶弱酸盐，可溶于强酸，因此可先取样，再滴入氯化钡溶液和几滴稀硝酸或稀盐酸，如果出现白色沉淀，说明有硫酸根。
第一章第二节1．D2．B3．B4．B5．65 mg/dL ~110mg/dL （1mmol=10-3mol）6．这种操作会使得结果偏低，因为倒出去的溶液中含有溶质，相当于容量瓶内的溶质有损失。
7．14mL8．n(Ca)：n(Mg)：n(Cu)：n(Fe)=224：140：35：29．1）0.2mol2）Cu2+：0.2mol Cl-：0.4mol0．40 （M=/mol ，该气体的相对分子质量0。
）第一章复习题1．C2．B3．A4．BC5．C6．(1) 不正确。
（标况下）（2）不正确。
（溶液体积不为）（3）不正确。
（水标况下不是气体）（4）正确。
（同温同压下气体的体积比即为物质的量之比，也就是分子个数比）7．（ 1）5%（2）0.28mol/L8．9．，操作步骤略。
第二章第一节1．②⑧①④⑤⑥⑦⑩⑨2．树状分类法略5．6．BD7．胶体区别于其他分散系得本质特征是胶体粒子的大小在1~100nm 范围。
胶体的应用，例如明矾净水、豆浆加石膏成豆腐、静电除尘、江河入海口易形成沙洲、血液透析、饱和氯化铁溶液用于应急性止血等。
第二章第二节1．水溶液熔融状态电离阴阳离子阳离子H+阴离子OH-金属离子或铵根离子酸根离子H+ + OH-=H2O2．两种电解质在溶液中相互交换离子的反应生成难溶物、易挥发物质、弱电解质3．C4．C5．C6．B7．D8．(1) NaOH=Na++OH-(2) CuCl2=Cu2++2Cl-(3) Fe2(SO4)3=2Fe3++3SO42-(4) Ba(NO3)2=Ba2++2NO3-9．(1) SO42-+Ba2+=BaSO4(2) 2Al+3Hg2+=3Hg+2Al3+(3) CO32-+2H+=H2O+CO2(4) 不反应。
高一必修英语参考答案
高一必修英语参考答案一、听力部分1. A) 正确答案：A。
根据对话内容，女士询问男士是否愿意参加一个派对，男士表示他需要先查看日程安排。
2. B) 正确答案：B。
对话中提到女士的弟弟正在学习中文，她建议男士可以和他一起学习。
3. C) 正确答案：C。
男士询问女士是否已经完成了作业，女士回答说还有一部分需要完成。
4. D) 正确答案：D。
女士提到她正在寻找一家餐厅，男士建议她去他之前去过的一家。
5. E) 正确答案：E。
对话中男士询问女士是否已经预定了电影票，女士回答说已经预定了两张。
二、阅读理解A篇：6. 正确答案：C。
根据文章内容，作者提到了学习英语的重要性。
7. 正确答案：A。
文章中提到了多种学习英语的方法，包括参加英语角。
8. 正确答案：B。
作者强调了学习英语需要持之以恒。
B篇：9. 正确答案：D。
文章介绍了一个在线学习平台，它为学生提供了个性化的学习计划。
10. 正确答案：B。
该平台通过数据分析来帮助学生提高学习效率。
11. 正确答案：A。
文章提到了平台的创始人和他的教育背景。
C篇：12. 正确答案：B。
文章讨论了现代科技对教育的影响，特别是在线课程的普及。
13. 正确答案：C。
作者提到了在线课程的一些缺点，例如缺乏面对面的互动。
14. 正确答案：A。
文章最后指出，虽然在线课程有其优势，但传统教育方式仍然不可替代。
三、完形填空15. 正确答案：A。
根据上下文，作者在描述一个开始学习英语的经历。
16. 正确答案：C。
这里需要一个表示时间顺序的连词，"then"符合语境。
17. 正确答案：B。
"However"表示转折，符合句意。
18. 正确答案：D。
"Encouraged"表示被鼓励，与前文的"support"相呼应。
19. 正确答案：A。
"Achievement"表示成就，符合语境。
20. 正确答案：C。
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淄博六中第7周自主学习材料
英语科参考答案
听力：1-10CCBAC BCBCC
11-20BACAC BBAAB
阅读：21-24DCAA25-28DABA
29-32BCDD33-35BCB
36-40FABCD
完形：41-50ACDCD CCBDB
51-60DBDDA CABBD
语法填空：61.It62.better63.who/that64.curiosity65.to learn
66.importantly67.If/When68.can69.will be70with
改错：Today was Mother's Day.Zhang Wei had a good idea and tells his father that he was
going
told
to do something to make his mother happily.Firstly,they decided to do some housework,that was
happy which always done by his mother.Zhang Wei cleaned the house completely while his father did any
some washing.Secondly,they made good meal,cooking fish,chicken,soup and some other delicious
made后加a
dishes.Zhang Wei laid the table and set a vase filled with flower in the middle of the table. Before
flowers After that,they hid themselves behind the door,wait for the mother in order to give her a surprise. When
waiting
her mother came back and saw the delicious food on the table,and she felt very pleased.
his去掉and
Against Food Waste
According to reports,the leftovers in restaurants across the country are almost enough to feed200million people annually.Therefore,China has taken on a national campaign“Eat up all on the Plates”.
It is a tradition for most people in China to entertain their guests with more than enough food,believing that they have not satisfied their guests if there is no food left on the table,which they think is a good way to show their hospitality.They think(that)they will be looked down upon if they make a doggy bag of the leftovers.As a result,restaurant trashcans are often found full of leftover foods.
The“Eat up all on the Plates”campaign is intended to reduce the waste and raise people’s awareness.It has been warmly welcomed with positive responses.As middle school students, we should make it a rule to say“No”to food waste,and try to develop the habit of never ordering or cooking more than what we need so as to save our limited food resources.Only when everyone realizes it can we hope for a better future.。