10.31晚读练习
八年级下册英语读写训练
八年级下册英语读写训练As we enter the second semester of the eighth grade, it is crucial for students to continue honing their English reading and writing skills. In this section, we will focus on various exercises and activities that will help students improve their language proficiency and excel in their academic studies.First and foremost, it is important for students to develop a habit of reading regularly. Reading not only enhances vocabulary and comprehension skills but also exposes students to different writing styles and genres. Encourage students to read a variety of materials, such as novels, newspapers, and magazines, to broaden their knowledge and understanding of the English language.In addition to reading, writing practice is essential for students to express their thoughts and ideas effectively. Writing exercises, such as essays, reports, and creative writing, can help students improve their grammar, punctuation, and sentence structure. Encourage students to write regularly and provide feedback to help them identify areas for improvement.Furthermore, students should focus on expanding their vocabulary by learning new words and phrases. Encourage students to use a dictionary or online resources to look up unfamiliar words and practice using them in sentences. Vocabulary-building exercises, such as word puzzles and flashcards, can also help students memorize and retain new words.Moreover, students should pay attention to grammar and sentence structure to ensure clear and coherent writing. Reviewing grammar rules and practicing sentence construction exercises can help students avoid common mistakes and improve the overall quality of their writing. Encourage students to proofread their work carefully before submitting it to ensure accuracy and coherence.Lastly, students should engage in group discussions and peer editing activities to collaborate with their peers and receive constructive feedback. Peer review can helpstudents identify strengths and weaknesses in their writing and learn from each other's writing styles. Encourage students to participate actively in group discussions and provide constructive feedback to help each other improve.In conclusion, the eighth grade English reading and writing training is essential for students to develop their language skills and succeed academically. By focusing on reading regularly, practicing writing exercises, expanding vocabulary, mastering grammar and sentence structure, and engaging in group discussions and peer editing, students can enhance their language proficiency and excel in their studies. Encourage students to be proactive in their learning and seek opportunities to improve their English skills both inside and outside the classroom.。
朗读练习题及答案
朗读练习题及答案1. 练习一:- 朗读以下段落,并注意每个词的发音和句子的流畅性。
- "The early bird catches the worm, but the second mouse gets the cheese."2. 练习二:- 朗读以下句子,并注意重音和停顿。
- "To be or not to be, that is the question."3. 练习三:- 朗读以下对话,并尝试表现出角色的情感。
- A: "Did you see the new movie last night?"- B: "Yes, it was absolutely fantastic!"4. 练习四:- 朗读以下诗歌,并注意韵律和节奏。
- "Shall I compare thee to a summer's day?Thou art more lovely and more temperate."5. 练习五:- 朗读以下新闻报道,并注意信息的传递和清晰度。
- "In the latest developments, the stock market has seen a significant rise, with technology shares leading the way."答案解析1. 答案一:- 正确发音:"early" [ˈɜːrli], "bird" [bɜːrd], "catches" [ˈkætʃɪz], "worm" [wɜːrm], "second"[ˈsɛkənd], "mouse" [maʊs], "cheese" [ʧiːz]。
新译林版三年级上册英语Unit 2作业单
三上Unit 2 What’s your name?(第一课时作业单Cartoon time)班级:___________________ 姓名:____________________【基础巩固】一、听录音,选出与所听内容相符的图片,听两遍。
()1.A. B. ()2.A. B. ()3.A. B. ()4.A. B.二、听录音,选择你所听到的句子,听两遍。
()1.A.My name is Beibei . B.My name is Bobby .()2.A.Hi,Mike Brown. B. Hi, I’m Mike Brown.()3.A.Nice to meet you . B.Nice to meet you,too .()4.A.What’s your name? B. What is your name?三、判断对话与图片是否相符,相符的写“T”,不相符的写“F”。
1.()A:Good morning, teacher .B:Good morning.2.()A:I’m Sam.What’s your name ?B:I ’m Beibei .3.()A:Hello,Yang Ling .B:Hello,Mike Brown .【能力提升】四、大小字母找朋友。
五、根据所给情境,选择正确的英文表达。
( )1.你想询问右图同学的姓名,你可以这样问:A. Hello,what’s your name ?B. Good morning,I’m Liu Tao . ( )2.他会这样回答你:A.Hi,Mike. B. Hi,I’m Mike .( )3.初次和他见面,你可以这样说:A.Nice to meet you . B. Goodbye,my friend .【拓展提优】六.Mike Brown 是一位新转来的学生,见到了Miss Li ,他们会怎样交流呢?请从方框中选择合适的选项,补全他们的对话。
英语朗读练习题
英语朗读练习题Part I: Short Passages (短文)1. Passage 1: The Benefits of Reading Aloud (大声朗读的好处)Reading aloud is not only a fundamental skill for language learners but also an effective way to practice and improve language proficiency. By articulating words and sentences vocally, learners can enhance their pronunciation, intonation, and overall oral communication skills. Additionally, reading aloud helps to reinforce vocabulary, grammar, and comprehension abilities. It develops fluency and boosts confidence in speaking. Engaging in regular reading aloud exercises offers numerous benefits and is a valuable tool for language development.2. Passage 2: A Practical Approach to English Pronunciation (实用的英语发音方法)Mastering English pronunciation can be a challenge, but with regular practice, it becomes achievable. Here are some practical tips for improving your pronunciation skills:- Start by focusing on individual sounds. Pay attention to the phonetic symbols and practice the correct pronunciation of each sound.- Use tongue twisters to improve articulation and clarity.- Record yourself while reading passages and compare your pronunciation with that of native speakers.- Mimic native speakers by listening to audio materials or watching English movies and TV shows.- Seek feedback from teachers or native speakers to identify areas for improvement and adjust accordingly.- Practice stress and intonation patterns to convey meaning effectively.By adopting these strategies and dedicating time and effort to practicing English pronunciation, learners can make significant progress and communicate more confidently.Part II: Dialogue Practice (对话练习)Dialogue 1:A: Good morning! How may I assist you today?B: Hi! I'm calling to inquire about the availability of English language courses for beginners.A: Absolutely! We offer various courses tailored to the needs of beginners. Could you please provide me with your preferred schedule and duration?B: I am available in the evenings from Monday to Thursday, and I would like to join a course for three months.A: Great! We have a suitable course starting next week. Would you like to sign up for it?B: Yes, please. What are the details?A: The course meets four times a week for two hours each session. The total fee is $250, including all study materials.B: That sounds perfect. Can I pay the fee online?A: Certainly! I will email you the payment details and course confirmation shortly.Dialogue 2:A: Good afternoon! How may I help you with your English learning journey?B: Hi, I am struggling with my English speaking skills and I believe conversation practice would be beneficial. Do you provide such programs?A: Absolutely! We offer specific conversation-focused courses to improve speaking abilities. How often would you like to attend these sessions?B: I am currently working full-time, so I can only join classes on weekends.A: Not a problem! We have a weekend conversation course that meets every Saturday for three hours. It covers various topics to enhance fluency and communication skills.B: That sounds ideal. How do I enroll?A: You can enroll online through our website or visit our center to complete the registration process. Which option works best for you?B: I would prefer to register online. Can you provide me with the necessary steps?A: Of course! I will guide you through the online registration process step by step. Please provide me with your email address, and I will send you all the details.Part III: Storytelling (讲故事)Once upon a time in the peaceful town of Green Valley, there lived a diligent young boy named Jack. Jack loved reading and enjoyed exploring the wonders of different worlds through books. However, he struggled with public speaking and lacked confidence when expressing himself.One day, Jack's teacher introduced a new activity in class – storytelling. Each student had to prepare a story and present it to the class. Jack was both excited and anxious. He decided to choose a story about a magical adventure to captivate his audience.Jack spent hours practicing his storytelling skills. He read the story aloud, focusing on his pronunciation and intonation. He recorded himself to identify areas for improvement and sought feedback from his teacher and classmates.As the day of the presentation approached, Jack felt nervous but determined. When it was his turn, he took a deep breath and began his tale. The words flowed effortlessly, and his voice carried the enthusiasm he had poured into his practice.To Jack's surprise, his classmates were spellbound by his storytelling abilities. They admired his confident delivery and engaging narrative. Jack'snewfound skill became a catalyst for his overall English language development. He began participating actively in class discussions, engaging in debates, and even joined the school's drama club.From that day forward, Jack continued to excel in his English studies. His journey from a timid speaker to a confident storyteller not only improved his language skills but also sparked his passion for English literature. Jack's story reminds us of the power of consistent practice, dedication, and the transformative impact of overcoming one's fears.Conclusion:Engaging in English oral exercises such as reading aloud, practicing pronunciation, participating in conversations, and storytelling can significantly enhance language proficiency. Through diligent effort, learners can build their confidence and communication skills, paving the way for effective language acquisition and personal growth. Keep practicing, and the rewards will be boundless.。
苏教版五年级上册数学第九周周末练习(一)
五数作业 10.31姓名________一、填空。
1.在○里填上“>”、“<”或“=” 3.09○3.1 1.034○1.4030.6○0.600 3.451○3.5412.把0.806 0.68 0.608 0.068 0.86从大到小排列( ) 3.4个十,5个千分之一组成( )。
4.2.35的计数单位是( ),它有( )个这样的计数单位。
5.不改变1.8的大小,把它改成以千分之一为单位的小数是( )。
6.5.85﹥5.□3,□里可以填的数有( );0.019<0.0□,□里可以填( )。
7.32.043左边的3表示( ),右边的3表示( )。
8.0.57是由( )个0.01组成。
1.9里有( )个0.1,( )个0.01,( )个0.001. 9.用1、2、3和小数点可以组成6个不同的一位小数,把这6个小数按照从小到大排列( )10.几个同学进行航模比赛,他们小飞机飞行的时间分别是小军:45.32秒、小红:47.8秒、小华43.9秒,第一名是( ),第二名是( ),第三名是( )。
11.用0、2、9、6组成“零”不读出来的两位小数,最小是( ),最大是( )。
12.一个三角形,一个梯形和一个平行四边形面积相等,它们的高也相等,三角的底是24cm ,那么梯形的上、下底之和是( ),平行四边形的底是( )。
13.把下数改写成用“万”作单位 的数。
9084000 = 9999000吨= 6000 = 408人=14.把下数改写成用“亿”作单位的数。
7387000000 = 92014000千米= 5861000 = 5600万吨= 15.把下面各数先改写成用“万”作单位的数,再改写用“亿”作单位的数。
147100000= ( ) = ( )32406000= ( ) = ( )4326000吨= ( ) = ( ) 16.23460米=( )千米 4285000米=( )万米80045900米=( )千米=( )万千米二、解决问题。
苏教版小学数学五年级上学期第八周【练习
第八周10.25-10.311.有一个三位小数,用“四舍五入”法保留整数是6,保留一位小数是6.0,保留两位是6.00,这个小数各个数位上的数字相加的和是30。
这个三位小数是多少?2.洋洋从家到学校,走了1.56千米,正好到达途中的超市。
他从学校返回,走了0.95千米时,正好超过超市0.55千米。
洋洋家、超市、学校在一条直线上,洋洋家距离学校多少千米?3.已知A=0.00…0363,B=0.00…09,那么99个0100个0A+B=()A-B=()第八周10.25-10.311.有一个三位小数,用“四舍五入”法保留整数是6,保留一位小数是6.0,保留两位是6.00,这个小数各个数位上的数字相加的和是30。
这个三位小数是多少?2.洋洋从家到学校,走了1.56千米,正好到达途中的超市。
他从学校返回,走了0.95千米时,正好超过超市0.55千米。
洋洋家、超市、学校在一条直线上,洋洋家距离学校多少千米?3.已知A=0.00…0363,B=0.00…09,那么99个0100个0A+B=()A-B=()4.如图,已知长方形ABCD面积是1200平方厘米,涂色部分的面积是750平方厘米,求四边形EFGD的面积。
5.小红和小兰在书店里都想买一本《十万个为什么》,但小红缺6.3元,小兰缺4.5元,两人合买了这本书,还余下1.8元。
一本《十万个为什么》多少元?他俩各带了多少元?4.如图,已知长方形ABCD面积是1200平方厘米,涂色部分的面积是750平方厘米,求四边形EFGD的面积。
5.小红和小兰在书店里都想买一本《十万个为什么》,但小红缺6.3元,小兰缺4.5元,两人合买了这本书,还余下1.8元。
一本《十万个为什么》多少元?他俩各带了多少元?。
新课程初中英语读写训练八年级下册
新课程初中英语读写训练八年级下册全文共10篇示例,供读者参考篇1Hello everyone! Today I want to share with you all about the new course of English Reading and Writing Training in the eighth grade. It's super exciting and fun!First of all, let's talk about the reading part. In the new curriculum, we will have lots of interesting stories, articles, and poems to read. We will also learn how to analyze the text, understand the main ideas, and identify key information. It will help us improve our reading comprehension skills and vocabulary.Next, let's move on to the writing part. We will learn how to write different types of texts, such as narratives, descriptive essays, and persuasive letters. We will also practice grammar, punctuation, and spelling to improve our writing skills. It's super important to be able to express ourselves clearly and confidently in writing.I know it may sound a bit challenging, but don't worry! Our teachers will guide us through each step and provide us withplenty of resources and activities to practice. Remember, practice makes perfect!Overall, I'm really looking forward to this new course. It will help us become better readers and writers, which are essential skills for success in school and beyond. Let's give it our best shot and have fun learning together! Let's go, eighth grade English class!篇2Hello everyone! Today I want to talk about the new course "Junior High School English Reading and Writing Training" for Grade 8 in the second semester. It's super fun and interesting!First of all, we will learn a lot of cool new words and phrases. For example, we will learn how to describe things using adjectives, and how to express our opinions in English. It's so cool to be able to express ourselves in different ways!Next, we will practice reading different kinds of texts, like stories, news articles, and poems. Reading is so important because it helps us improve our vocabulary and comprehension skills. Plus, it's really fun to read new and exciting things!And of course, we will have lots of writing exercises too. We will learn how to write different types of texts, like essays, letters, and diary entries. It's a great way to improve our writing skills and express our thoughts and feelings in English.Overall, I'm super excited for this new course. It's going to be a lot of fun and we'll learn so much. I can't wait to start learning new words, reading interesting texts, and writing awesome stories. Let's work hard and have a blast in the "Junior High School English Reading and Writing Training" course!篇3Title: My Experience with the New Curriculum in Eighth Grade EnglishHi everyone, I'm so excited to share with you all about my experience with the new curriculum in eighth grade English class! It's been such a fun and interesting journey, and I can't wait to tell you all about it.First off, let me tell you about the new reading and writing exercises we've been doing. We have been reading a lot of cool stories and articles in class, and then writing our own summaries and responses to them. It's been really fun to analyze thecharacters and themes in the stories, and to come up with our own opinions and ideas about them.One of the things I love most about the new curriculum is the focus on vocabulary and grammar. We have been learning so many new words and phrases, and practicing using them in sentences and paragraphs. I can already feel my English skills improving, and it's all thanks to the new exercises we've been doing.Another thing I really enjoy about the new curriculum is the group projects we get to do. We have been working in teams to create presentations and skits based on the stories we've read in class. It's been so much fun collaborating with my classmates and coming up with creative ideas together.Overall, I think the new curriculum in eighth grade English is awesome. I've learned so much and had a great time doing it. I can't wait to see what the rest of the year has in store for us. Thank you for listening to my story, and I hope you all have a great day!篇4Hello everyone! I am so excited to tell you all about the new English course we are going to start in the eighth grade. It'scalled "New Curriculum Junior High English Reading and Writing Training".In this course, we will learn so many new things to improve our English skills. We will read interesting stories, articles, and poems in English and practice our reading comprehension. We will also learn new vocabulary words and grammar rules to help us become better writers.One of my favorite parts of this course is the writing training. We will have lots of opportunities to write essays, letters, and even short stories in English. It's a great way to express our thoughts and ideas in a different language.I know learning a new language can be challenging, but with practice and determination, we can do it! Let's work hard, help each other, and have fun while learning English together.I can't wait to see all the new things we will learn in this course. I hope we all become fluent English speakers and writers by the end of the year. Let's do our best and make our teachers proud!Are you all as excited as I am? Let's start this new English course with a positive attitude and a willingness to learn. Here'sto a great year of reading and writing in English! Let's do this, everyone!篇5Hello everyone, I’m so excited to share with you all about the new course we are starting in our eight grade English class! It’s called “Reading and Writing Training” and it’s going to be super fun and interesting.First of all, we are going to learn a lot of new words and phrases that will help us improve our vocabulary. We will practice reading different types of texts like stories, articles, and poems. This will help us understand how to read and comprehend English texts better.Next, we will work on our writing skills. We will learn how to write different types of compositions like narratives, descriptive essays, and persuasive essays. We will also practice writing dialogue, letters, and emails. This will help us express ourselves better in English.In addition to reading and writing, we will also focus on grammar and punctuation. We will learn about different tenses, sentence structure, and punctuation rules. This will help us communicate more effectively and write better sentences.I’m really looking forward to this new course and I hope you all are too! Let’s work hard and improve our English together. I know we can do it! Let’s have fun learning and practicing our reading and writing skills in English.That’s all for now, see yo u in class!篇6Hello everyone! Today I want to talk to you about the new course for eighth grade English reading and writing training. It's super cool and I can't wait to tell you all about it!First of all, we get to read lots of interesting stories and articles in this new course. They are all about different topics like animals, sports, and even some spooky stuff like ghosts and mysteries. It's so much fun to read and learn new words at the same time.Secondly, we also get to write our own stories and essays in this course. We can write about our favorite things, our dreams for the future, or even make up our own fantasy worlds. It's a great way to let our imaginations run wild and improve our English writing skills.And the best part is, we get to practice speaking English too! There are lots of activities in the course that help us practice speaking and listening to English. We can talk to our classmates, do role plays, and even make presentations in front of the class. It's a little bit scary at first, but it's so much fun once you get the hang of it.Overall, I really love the new course for eighth grade English. It's so much fun to read, write, and speak English with my friends.I can't wait to see what other fun activities we get to do in this course. I hope you all enjoy it as much as I do!篇7Hello everyone! Today I want to talk about the new course for our eighth grade English class. It's called "Reading and Writing Training", and it's super fun and interesting!In this new course, we will learn how to read and write in English better. We will practice reading different kinds of texts, like stories, articles, and poems. We will also learn how to write our own stories and essays. It's going to be so much fun!One of the things I'm really excited about in this course is the writing exercises. We will get to write about all sorts of things, like our favorite hobbies, our dreams for the future, and even ourown made-up stories. I can't wait to see what creative ideas everyone comes up with!And the best part is, we will also learn some new vocabulary and grammar rules along the way. This will help us improve our English skills and become better writers and readers. I know I still have a lot to learn, but I'm excited to do it with all of you!I hope you're as excited as I am for this new course. Let's work hard, have fun, and become English experts together! Let's make this the best school year ever!篇8Title: My Experience with the New Curriculum in Eighth Grade EnglishHey guys! Today I want to share with you my experience with the new curriculum in eighth grade English. It's been super cool and I've learned a lot of new things!First of all, our teacher introduced us to some really interesting novels and stories. We read books like "The Outsiders" and "To Kill a Mockingbird", and they were so gripping! I loved discussing the characters and themes with my classmates.Next, we did a lot of writing exercises to improve our skills. We wrote essays, journal entries, and even short stories. I discovered that I'm pretty good at storytelling and I even won a writing contest!One of the best parts of the new curriculum was the vocabulary and grammar exercises. We learned so many new words and grammar rules, and it really helped me to express myself better in English.Lastly, we had fun activities like group projects and presentations. I had a blast working with my friends on a project about Shakespeare and showing off our knowledge to the class.Overall, the new curriculum in eighth grade English has been awesome. I've grown so much as a reader and writer, and I can't wait to see what the rest of the year has in store for us!篇9Hello everyone! Today I'm going to talk to you about the New Curriculum English Reading and Writing Training for Grade 8.In this new textbook, we will learn a lot of interesting things to improve our English skills. There will be new vocabulary words,grammar rules, and reading passages that will help us become better English speakers and writers.One of the exciting things about this new book is that it has more exercises and activities for us to practice what we have learned. We will have listening exercises, speaking activities, and writing tasks to help us become more confident in using English.The reading passages in the book are also very interesting. We will read stories, articles, and poems that will help us improve our reading comprehension and vocabulary. We will also learn how to write different types of texts, such as letters, emails, and essays.I am looking forward to learning new things and improving my English skills with this new textbook. I hope you are too! Let's work hard together and have fun while learning English. Good luck to all of us in our English studies!篇10Hello everyone, I'm so excited to share with you all about the new curriculum for English reading and writing training in the eighth grade of junior high school. It's super cool and fun, so let's dive in!In this new curriculum, we will learn a lot of interesting and useful things. We will read all kinds of stories, articles, and poems in English to improve our reading skills. We will also practice writing different types of essays, reports, and letters to enhance our writing skills. It's going to be so much fun!One of the best things about this new curriculum is that we will have more opportunities to practice speaking English. We will do group discussions, presentations, and even role plays to improve our speaking skills. It's going to be a great way to boost our confidence and fluency in English.I am also super excited about the new vocabulary and grammar exercises we will do. We will learn new words and phrases every week, and we will practice using them in sentences and paragraphs. We will also learn more about grammar rules and how to use them correctly in our writing. It's going to be so interesting and helpful!Overall, I think this new curriculum is going to be amazing. I can't wait to learn more English and become even better at reading, writing, speaking, and listening. I know it's going to be a lot of hard work, but it's going to be so worth it in the end. I can't wait to see how much I will improve by the end of the school year!So, let's all work hard and have fun learning English together. Let's make the most of this new curriculum and become true English experts! Let's do this!。
时间的读法练习题
时间的读法练习题时间的读法练习题时间是我们生活中不可或缺的一部分,我们需要通过时间来安排日常的活动和计划。
然而,对于一些人来说,尤其是非母语为中文的人来说,正确地读写时间可能是一个挑战。
在这篇文章中,我们将提供一些关于时间读法的练习题,以帮助大家更好地掌握这个技能。
练习题一:请写出以下时间的读法。
1. 8:30 AM2. 2:45 PM3. 6:20 AM4. 9:15 PM5. 12:00 PM6. 3:55 AM答案:1. 早上八点半2. 下午两点四十五分3. 早上六点二十分4. 晚上九点十五分5. 中午十二点整6. 凌晨三点五十五分练习题二:请将以下时间的读法转换为数字表示。
1. 下午四点十五分2. 早上九点半3. 晚上八点零五分4. 中午十二点四十分5. 凌晨一点十五分答案:1. 4:15 PM2. 9:30 AM3. 8:05 PM4. 12:40 PM5. 1:15 AM练习题三:请根据上下文填写合适的时间。
1. 我通常在早上六点起床,然后去晨跑半小时。
2. 我们的会议将在下午两点开始,请准时参加。
3. 她每天晚上九点半才回家。
4. 他在中午十二点吃午饭。
5. 他们在凌晨三点离开机场。
答案:1. 6:00 AM2. 2:00 PM3. 9:30 PM4. 12:00 PM5. 3:00 AM练习题四:请根据提供的时间写出相应的句子。
1. 3:30 PM2. 7:45 AM3. 11:20 PM4. 5:10 AM5. 9:55 PM答案:1. 下午三点半我通常开始工作。
2. 早上七点四十五分是我每天起床的时间。
3. 晚上十一点二十分我会锁门睡觉。
4. 凌晨五点十分是我去健身房的时间。
5. 晚上九点五十五分我通常看电视或读书。
通过这些练习题,我们可以更好地熟悉时间的读法。
掌握正确的时间读写方式对于日常生活和工作的安排至关重要。
希望这些练习题能够帮助大家提高时间的读写能力,更加高效地管理自己的时间。
一年假下学期数学苏教版练习周周练
小学一年级下学期苏教版周周练习题及答案(1-11周)第一周一、根据要求填空。
1.在○里填“>”“<”或“=”。
14-8 ○7 11-7 ○ 3 8+6 ○1517-9 ○9 17-8 ○8 12-7 ○ 62.填数墙。
二、选择题。
3.用5、14、9三个数可以组成()道加减法算式。
A.4B.3C.2三、计算。
4.看谁算得又对又快。
10-8= 16-8= 11-7= 12-8=17-8= 10-7= 14-8= 11-8=13-8= 15-7= 14-7= 17-7=16-7= 12-7= 13-7= 18-8=5.击鼓传花。
四、解决问题。
6.停车场原来停了15辆车,开走了()辆,还剩()辆。
7.妈妈买红扣子18个,白扣子9个,黑扣子4个。
(1)红扣子比白扣子多多少个?(个)(2)黑扣子比白扣子少多少个?(个)8.我们一共收了16个胡萝卜,分给朋友9个,还剩多少个?9.一队小朋友从左往右依次报数,明明报的是8,红红报的是14。
明明和红红之间一共有多少个小朋友?参考答案一、1. <><<><2. 3 1 5 1 9 9 6 0 0二、3. A三、4. 2 8 4 4 9 3 6 3 5 8 7 10 9 5 6 105. 4 11 3 10 15 7 17 9四、6. 8 7 15-8=77. (1)18 - 9 = 9(个) 答:红扣子比白扣子多9个。
(2)9 - 4 = 5(个) 答:黑扣子比白扣子少5个。
8.16 - 9 = 7(个) 答:还剩7个。
9.14-8-1=5(个)答:明明和红红之间一共有5个小朋友。
第二周一、根据要求填空。
1.算一算,填一填。
2.在○里填“>”“<”或“=”。
11-2○9 6○13-4 11○9-2 14○12-318○19-5 9○12-4 14-7○6 11-4○83.先将长方形涂成红色,正方形涂成绿色,圆涂成黄色,然后数一数,再填一填。
长方形有( )个,正方形有( )个,圆有( )个。
一年级数学上册25-36课时
红窑实验学校小学部集体备课分课时记录
红窑实验学校小学部集体备课分课时记录
红窑实验学校小学部集体备课分课时记录
红窑实验学校小学部集体备课分课时记录
红窑实验学校小学部集体备课分课时记录
红窑实验学校小学部集体备课分课时记录
红窑实验学校小学部集体备课分课时记录
红窑实验学校小学部集体备课记录
红窑实验学校小学部集体备课记录
红窑实验学校小学部集体备课记录
红窑实验学校小学部集体备课记录
红窑实验学校小学部集体备课记录。
译林英语四年级下册4B阅读理解
译林英语四年级下册4B阅读理解A。
eight o'XXX3.Who is Sam's Chinese XXX?A。
Miss WangB。
Miss WhiteC。
Miss Black4.What does Sam do at 4:30 p.m?A。
XXX.5.When does Sam go to bed?A。
8:30 p.m.B。
9:30 p.m.C。
10:30 p.m.一)阅读下面的短文,判断正(√)误(×)。
本学期我们有七门课程,分别是数学、美术、语文、英语、科学、体育和音乐。
我非常喜欢美术,但每周只有两节美术课。
今天是星期一,上午有四节课,下午有三节课。
现在是十点,XXX正在给我们上语文课。
1.本学期我们有七门课程。
2.我非常喜欢体育。
3.每周有一节美术课。
4.今天是星期一。
5.星期一上午没有语文课。
二)阅读短文,选择正确的一项。
大家好,我是XXX。
我早上6点半起床,然后7点半去上学。
现在是8点,该上课了。
我每天九点十分上语文课,我的语文老师是XXX老师,我非常喜欢她。
下午4点半我需要打扫教室,然后5点半回家。
晚上我不能看电视,要做作业。
然后9点半就上床睡觉了。
1.XXX早上6点半起床。
2.XXX九点十分上课。
3.山姆的语文老师是XXX老师。
4.下午4点XXX需要打扫教室。
5.XXX晚上9点半上床睡觉。
A。
7:00B。
8:00C。
8:30Miss White is Sam'XXX.Sam goes home at 5:30.Sam goes to bed at 8:30.T) XXX XXX.T) Mike can make a salad.F) Gao Shan can make a cake.T) David can ski and skate.F) Nancy can ski.F) Liu Tao can play basketball.My school day starts at 8:00 am。
2023年八年级暑期话题阅读天天练:学习科目(含解析)
2023年八年级暑期话题阅读天天练:学习科目(含解析)2023年八年级暑期话题阅读天天练:学习科目(共9题)一、阅读理解题(共9题)阅读选择Monday Tuesday Wednesday Thursday Friday9:00 am math math English10:30 am chemistry history chemistry chemistry11:15 am history1:45 pm physics physics physics3:00 pm English math(1) What lesson do they have at 1:45 pm on Wednesday A.Physics. B.Chemistry. C.History. D.Math.(2) Do they have lessons at 10:30 am on ThursdayA.Yes, they do.B.No, they don't.C.We can't know from the timetable (课程表).D.None of the above (以上答案都不对).(3) On Friday, a physics lesson begins at _____.A.9:10 am B.10:30 am C.1:45 pm D.3:00 pm(4) They have _____ lessons in a week.A.10 B.11 C.12 D.13(5) How many kinds (种类) of lessons do they have in a weekA.3. B.4. C.5. D.6.English Students EducationEnglish schools begin in September after a long summer holiday. There are two terms in a school year. The first term is from September to January, and the second term is from February to June. Most English children begin to go to school when they are five years old. When they finish high school, they are seventeen or eighteen years old.High school students take only five or six subjects each term. They usually go to the same class every day, and they have homework for ever class. After class, they do a lot of interesting things. After high school, many students go to college. They usually have to pay a lot of money. So they have to work after class to get money for their studies.(1) In England, summer holidays begin in _____.A.September B.January C.July(2) Most English children go to school at the age of _____.A.five B.seven C.seventeen(3) High school students _____ after class.A.do housework B.go to workC.do interesting things(4) Many English college students work after class for _____. A.helping their parents B.getting money for their studies C.helping others(5) After high school, many students go to _____.A.cities B.work C.college阅读下列短文,根据短文内容,从短文后各题所给的选项中,选择最佳选项。
专题四:统计图和统计表10.31
更复杂的多变量图形
• 最常见的方式为采用图例对二维图进行扩 充 • 组合统计图:根据实际需要自行设计 • 统计地图:与地图数据相结合 • 其他特殊用途的统计图 质量控制图、ROC曲线等
注意:图形并非越复杂越好!
• The most common disaster in illustrating is to include too much information in one figure. • The more points made in an illustration, the more the risk of confusing and discouraging the reviewer. --Briscoe,1990
直方图
• 观察数据的分布情况 • 考察cars.sav中的horse变量是否如何正态分布。 • 基本编辑操作 • 直方图特有选项 可加绘正态曲线 人为指定组段数interval • 同类图形 茎叶图: 样本较小时更为精确
箱图
直观的表示数据分布情况 • 中间的黑粗线为中位数 • 方框为四分位间距范围 • 上下两个细线为除了离群值之外的最大、最小值 注意:这里表示的是具体数值,不是理论界值! • 超过上下框界1.5倍四分位数间距的为离群值,以 “O”表示 • 超过3倍的为极端值。以“*”表示
专题四:统计图和统计表
一、统计表的生成与编辑
1. 结果输出格式的美化: • 结果窗口-edit-option -viewer-item & content -pivot tables-tablelook-academic 2.tlo -pivot tables-defalt edting mode-edit small and medium tables in viewer
英语中时间逆读法练习题
英语中时间逆读法练习题一、基础练习1. 将以下时间按照逆读法读出来:a) 6:45 amb) 12:30 pmc) 3:20 amd) 9:15 pm2. 将以下日期按照逆读法读出来:a) May 16thb) October 5thc) December 25thd) August 2nd3. 根据逆读法,回答以下问题:a) 11:55 pm在正读法中是几点几分?b) December 31st在正读法中是哪一天?c) 5:10 am在正读法中是几点几分?d) March 20th在正读法中是哪一天?二、进阶练习1. 将以下时间按照逆读法读出来,并在空格处填写相应的正读法:a) 8:40 am -> ________b) 4:25 pm -> ________c) 12:15 am -> ________d) 7:05 pm -> ________2. 将以下日期按照逆读法读出来,并在空格处填写相应的正读法:a) July 5th -> ________b) September 22nd -> ________c) February 14th -> ________d) November 10th -> ________3. 根据逆读法,回答以下问题,并将答案用逆读法写出:a) 9:35 pm在正读法中是几点几分?b) October 12th在正读法中是哪一天?c) 6:55 am在正读法中是几点几分?d) May 1st在正读法中是哪一天?三、挑战练习1. 将以下时间按照逆读法读出来,并将答案用逆读法写出:a) 11:55 am -> ________b) 2:40 pm -> ________c) 3:25 am -> ________d) 9:50 pm -> ________2. 将以下日期按照逆读法读出来,并将答案用逆读法写出:a) March 17th -> ________b) December 2nd -> ________c) July 20th -> ________d) October 31st -> ________3. 根据逆读法,回答以下问题,并将答案用逆读法写出:a) 10:05 pm在正读法中是几点几分?b) August 8th在正读法中是哪一天?c) 4:30 am在正读法中是几点几分?d) June 23rd在正读法中是哪一天?四、总结通过上述的练习题,你有没有发现英语中的时间逆读法并不难掌握。
三年级上册语文试题-日日清练习题-西师大版
慈圣实验学校西师大版上三语日日清 10.31一看拼音,写词语。
(6分)1.shī bài()是成功之母。
2.在老师做了很多次shì fàn()动作,我们终于学会了这个舞蹈。
3.人们将那只死去的白天鹅制成了biāo běn(),提醒大家不该随意杀戮。
二形近字组词。
(8分)利()败()叹()某()和()放()仅()谋()三写出下列词语的近义词。
(6分)摸索——()复原——()琢磨——()惊叹——()秘密——()似乎——()四选词填空。
(3分)发觉发现发明1.她在草地上()了一只受伤的小鸟。
2.当人们()财物丢失的时候,小偷已经溜掉了。
3.鲁班的()创造很多,被后世的工匠们奉为鼻祖。
五写出能用来描写你们班同学的四字词语,写6个。
(3分)六句子加工厂(6分)1用“巧妙”一词造句。
2 别看这个东西不大,作为却很大。
(修改病句)3 茂密的树林把太阳遮住了。
(改为被字句)七回忆课文《飞镖的秘密》,回答问题。
(8分)1老师认为钱学森成功的原因是什么?2 我们应该如何学习钱学森的优秀品质呢?3 孩子们认为钱学森的飞镖里有“鬼”,老师是怎样认为的?4飞镖的秘密是什么?八阅读下面的短文,回答问题。
(2+3+2+3分)我有一个愿望,就是能为祖国做出一点贡献,哪怕是微不足道的也好。
正好,我们学校参加了“爱我中华,修我长城”的捐款活动,于是我就悄悄攒起钱来。
攒钱不是一件容易的事,可得有决心!一天,放学后我去商店买橡皮。
刚进门,便不由自主向食品柜台走去。
这时,那位认识我的售货员阿姨向我招呼道:“今天可有你爱吃的巧克力豆呢!”我没说话。
那巧克力豆好象也笑着开口说:“我好吃极了……。
”我的手不由地伸进兜里掏钱,但是我想到我的愿望,立刻又把手缩回来。
我望了望那诱人的巧克力豆,抱歉地对售货员笑了笑,高兴地离开了柜台。
几天后的一个上午,学校举行隆重的捐款仪式,当我把积攒的钱全部交给老师的时候,会场上爆发出热烈的掌声。
2023届高三英语晚自习限时训练
2023届高三英语晚自习限时训练【3月30日晚,限时:不超过65-70分钟】一、阅读理解(一)Located in the tropical forests in Xishuangbanna, southwest China’s Yunnan province, the Asian Elephant Breeding and Rescue Center (AEBRC) is dedicated to giving careful and effective protection to wild elephants.Though the jungles provide rich sources of food and water for the elephants, they can also pose a threat to them if they become ill or injured, making it difficult for them to survive in the wild.In August 2015, a baby elephant that was less than one month old was abandoned by her herd at the d oorway of a farmer’s house in Simiao, Pu’er city. Vets from the AEBRC came and took the animal to their center for treatment. She was found to have intra-abdominal infections and heart failure. She was also at risk of blood poisoning.The baby elephant finally recovered after proper treatment by the keepers at the center. However, without the presence of her mother, she became malnourished (营养不良) due to a lack of breast milk. At that time, she weighed only 76 kilograms, much smaller than an average newborn elephant. The vets decided to feed her goat milk, and as she was born in the Chinese Year of the Goat, the elephant was named Yang Niu (“Yang” is Chinese for goat, and Niu means girl). The elephant is now about 6 years old, 1.8 meters tall and weighs 1.3 tonnes.Currently, there are 11 rescued Asian elephants living at the center and being cared for by 27 keepers, who spend more than 10 hours with them each day. Thanks to these efforts, the population of Asian wild elephants in the province has reached 300 from 150 over the past 30 years.The local government has designated (指派) a place as a source of food for the elephants so that they do less damage to villagers’ crops while looking for food. They’ve also monitored the elephants using technologies such as drones to keep track of their activities and prevent encounters between villagers and the elephants. The local government has also purchased commercial insurance for residents to compensate them if the elephants attack them.;1. What can be a threat to elephants’ survival according to the text?A.Lack of food sources. B.Illegal hunting.C.Physical problems. D.Destruction of forests.;2. What does the example of a baby elephant stress?A.The recovery of Yang Niu.B.The efforts made by keepers.C.The risks facing baby elephants.D.The importance of mother elephants.;3. What does the author mainly talk about in Paragraph 5?A.The number of elephants endangered.B.The urgency of rescuing wild elephants.C.A steady growth of elephant population.D.A rising trend of animal overprotection.;4. Why has the government designated a place for elephants?A.To keep track of their activities.B.To prevent them from damaging crops.C.To save them the trouble of looking for food.D.To ensure the growth of the elephant population.(二)No one can resist the temptation (诱惑) of snacks. But at the same time, you may be underestimating how many calories a snack contains. What would happen if you had a bag of crisps (炸薯片) a day? Eating an extra packet of crisps a day could lead to a weight gain of 6. 35 kg after a year, The Times reported.People underestimate the number of calories in their snacks, with experts warning that eating a bag of crisps every day could lead to a stone of weight gain in a year. A survey of around 2 ,000 adults found that about three quarters underestimated the impact of what a small reduction could have. One in ten believed that cutting 200 calories a day would not affect weight. At the same time, many people didn’t seem to know exactly how many calories were in their snacks. When it came to snacks, people struggled, with 95 percent guessing that half a sharing bag of tortilla chips had 214 calories on average, almost half the true figure of 447.Can’t we resist buying snacks? The food environment is to blame. Even though we all know snacking is bad for our health, we can’t help but fill our shopping carts with snacks.Don’t always blame yourself for poor self- control, and supermarket shelves also have to carry this “pot” half.Hugo Harper, head of Nesta’s health team, said the pressure to resist high-calorie snacks should not be put on consumers and that our food environment needed. to be changed, He said,“Our environment has a real impact on what we eat, from advertisements and supermarket promotions to what ‘s available in our local corner shops.Hugo added,“If we had fewer cues to snacks, or were pushed to buy fewer high calorie snacks, we should be able to see real change.”New rules coming into force next month will restrict promotions on foods high in fat, sugar and salt in big shops.;5. What does the author intend to do in paragraph 1?A.List some reasons. B.Introduce the topic.C.Put up an argument. D.Raise a question.;6. What can we know from the survey?A.One in ten people cut 200 calories a day.B.Many people knew how many snacks they ate.C.No one knew the calories the snacks contained.D.Most people lacked the awareness of snacks’ impact.;7. What may cause people to buy more snacks according to the text?A.The food environment. B.Living conditions. C.Consumption ability. D.Supermarket management.;8. Which of the following may be the best title for the text?A.A packet of crisps contains many caloriesB.People can resist the temptation of snacksC.The harm of snacks is beyond your imaginationD.2,000 adults got involved in a consumption survey二、七选五阅读Have you had a talk with someone, and think you are paying attention to him or her, only to realize shortly afterwards that you can’t remember what he said? Oh, perhaps you fail to focus while he is speaking and miss the message that he is trying to deliver. 9 : TVs, radios, traffic noises, telephones, laptops and so on which can make it difficult to listen with our full attention.But how can we listen more effectively? 10 . Professor Jon Kabat-Zinn said, “It’s time for mindful listening to come in. Mindfulness means paying attention in a particular way, with a purpose, at the present moment and non-judgmentally.”11 ? Jon Kabat-Zinn describes three key elements of mindful listening that we can use to improve our listening skills.First of all, be present. When we listen mindfully, our focus should be on the person we are listening to without distractions. 12 . By doing so, we can understand a situation from someone else’s point of view. After all, we often see the world through our own experiences. Finally, listen to our own cues. Our cues are the thoughts, feelings and physical reactions that we have when we feel anxious or angry, and they can hold back ideas and perspe ctives that we’re uncomfortable with. Mindful listening can help us to be more aware of our cues. 13 .In conclusion, the rule is straightforward: simply “Listen”! Listen carefully and attentively. Pay full attention to the other person, and don’t l et other thoughts, like what we are going to say next, distract us.A.Then think in others’ shoesB.Researchers seem to have got itC.How can we deal with mindful listeningD.Modem life is actually full of distractionsE.But how can we apply mindful listening to our lifeF.Next, reflect on the experience you’ve gone throughG.Besides, it allows us to choose not to let them ruin communication三、语法填空阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。
八年级上册英语同步练习册答案
八年级上册英语同步练习册答案一、选择题1. What does your father do?A) He is a teacher.B) He likes to read books.C) He works in a bank.D) He is a doctor.答案:A2. Where are you going this weekend?A) I am going to the park.B) I am going to the beach.C) I am staying at home.D) I am going to the library.答案:B3. What time is it now?A) It's 8:00 a.m.B) It's 3:00 p.m.C) It's 7:00 p.m.D) It's midnight.答案:A二、填空题1. The boy is ________ (年轻的) than his sister.答案:younger2. She ________ (喜欢) music very much.答案:likes3. They ________ (计划) to go to the museum tomorrow.答案:plan三、完形填空In a small village, there lived a kind old man. He always helped others. One day, he found a lost dog and took it home. The dog was very _______ (1) and the old man fed it. The dog was very _______ (2) to him.1. A) hungryB) tiredC) happyD) sad答案:A2. B) thankfulC) angryD) surprised答案:B四、阅读理解Passage 1:Tom is a student. He likes playing basketball very much. He plays basketball every afternoon after school. His favorite player is Michael Jordan.Questions:1. What does Tom like to do?答案:He likes playing basketball.2. What does he do after school?答案:He plays basketball.3. Who is his favorite player?答案:His favorite player is Michael Jordan.五、写作Write a short passage about your weekend plan.参考答案:Last weekend, I had a wonderful time. On Saturday morning, I went to the library to read some books. In the afternoon, I played basketball with my friends. On Sunday, I visited my grandparents and helped them with the housework. I enjoyed my weekend very much.结束语以上就是八年级上册英语同步练习册的部分答案。
【阅读理解(十八)】小升初英语PEP版阅读理解专项训练
小升初英语PEP版阅读理解专项训练(十八)班级:姓名:主题1:坚果找到了Miss Bonnie and Mr. Chester are two squirrels(松鼠). They are good friends.One dayBonnie comes to her friend's home. She sees Chester is not very happy.“I can't find my nuts(坚果),”says Chester. “They are not under my bed or in my desk.They are for my family. I must find them.”“I can help you,” says Bonnie.Bonnie sees a white bag under the chair. But the nuts aren't in it. Then she sees a photoon Chester's desk. In the photo, Chester has a big brown box.Some nuts are in the box.“Box? Where is it?” Bonnie thinks. She looks here and there.“Look, Chester!” says Bonnie.“What's in the box?”“Oh, nuts!” Chester answers. “You're great!”Then he goes up to the top(顶部) of the bookcase… Chester is happy now.) ()1.Bonnie and Chester are .A.cousinsB. friendsC.teacher and studentD. sister and brother ()2.Chester isn't happy becauseA. he can't find his nutsB. his friend lost his nutsC. he can't go into his roomD.he lost his photo()3. What color is the bag under the chair?A. BrownB. WhiteC.GreenD. Yellow()4. What helps Bonnie get a clue(线索)?A. The chairB.The bagC.The photoD.The desk.主题2:健身好处多Everyone knows that exercise is important. We all need to exercise. Doctors say it isgood for us. It makes your heart and body strong. In the morning, we must get up early.Thisis the best time for exercise.Exercise means doing things with the body. Children who oftenexercise are more quick.This means they do better in tests and schoolwork than those whodon't exercise.There are many ways to exercise. You can walk, run,swim, skate, or play ball games.Make sure you exercise in the following ways. You have to like what you 're doing.Exerciseenough but not too much. It's best to exercise twice a week. Thirty minutes each time isenough.You can exercise at fitness centers(健身中心).They have a lot of equipment(器材) there.The equipment will help exercise your arms, legs and other parts of body to make you fit.Some people buy equipment for their homes.But it is very expensive.Exercising can be fun too. You have friends to play sports together ata fitness center.How about you?1. What is the best time for exercise?2. What does “exercise” means?3.How often and how long should we exercise according to the passage?4.Does a fitness center have a lot of equipment?5. Why can exercising at a fitness center be fun too?主题3:失物招领LostI lost my key. Ifs yellow. I lost it in the school library. I really want to find it. Please help me. My phone number is 403-6623.JaneBlack Dog LostPlease call me at 903-4765 if you find Nick, or(或者)e-mail me at *****************/******************.EricLostName: NanaColor: WhiteReward(悬赏金):¥ 1,000Please call me and my friend if you see my dog, Nana.Peter: 983-0130 Fiona: 904-7725()1. Who lost a key?A. EricB.JaneC. PeterD. Fiona.()2. What is the black dog's name?A. NanaB. NickC. PeterD.Eric.()3. What is Fiona's telephone number?A.403-6623B.903-4765C.904-7725D.983-0130.()4. If you find Nana for Peter and Fiona, you can get_A. a nice dogB.1,000 yuanC.photos of NanaD.a book about dogs主题4:多变三月天A Chinese saying(谚语) says, “The weather in June is like a baby's face.”It means theweather always changes suddenly. In English, there is also a saying,“March comes in like a lion and goes out like a lamb(羊羔).”What does it mean?March is a month between winter and spring. It “comes in like a lion”. Why? Becausethe month begins with winter weather like wind and cold days.At the end of March, spring ison the way. The weather gets warm. So we say it “goes out like a lamb”.If March begins with warm weather and clear days, people should be careful of badweather at the end of the month.Are the sayings interesting and useful? Can you give us more?()1.In the Chinese saying in the passage, what is the weather in June like?A.A lambB.A baby's faceC.A lionD.An animal()2.Why does March “go out like a lamb?”A. Because the weather gets warm at the beginning of March.B.Because the weather gets windy and cold at the beginning of MarchC. Because the weather gets warm at the end of March.D.Because the weather gets cold at the end of March.()3.If March begins with warm weather and clear days,A. the weather will be nice and clear in the whole monthB.people should be careful of hot days at the end of the monthC. people should be careful of bad weather at the end of the monthD. people can enjoy the warm weather all the year round()4. Which is the best title of the passage?A.Two Sayings About the WeatherB.June Is People's Favorite MonthC. The Weather in June Is Like a Baby's FaceD.March Comes in Like a Lion参考答案主题1:坚果找到了1.B。
六年级下册英语发音练习题
六年级下册英语发音练习题在六年级下册的英语学习中,发音一直是一个重要的练习点。
正确的发音不仅可以提高语言交际能力,还有助于更好地理解和学习英语。
下面是一些六年级下册英语发音练习题。
练习一:单词发音1. 下列单词中,哪个单词的发音与其他三个不同?A) catB) dogC) ratD) hat2. 下列单词中,哪个单词的重音落在第一音节上?A) teacherB) bananaC) umbrellaD) elephant3. 下列单词中,哪个单词的读音与其他三个不同?A) pictureB) basketballC) mathD) science4. 下列单词中,哪个单词的读音与其他三个不同?A) fatherB) brotherC) motherD) sister练习二:连词发音1. 连词 "and" 在句子中的发音通常是什么?2. 连词 "but" 在句子中的发音通常是什么?3. 连词 "or" 在句子中的发音通常是什么?4. 连词 "for" 在句子中的发音通常是什么?练习三:对话发音根据下面的对话,选择正确的发音填入横线上。
A: What's your ___________? (name / age)B: My ___________ is David. (name / age)A: Nice to ___________ you, David. How old ___________ you? (meet / are)B: I'm ___________ years old. (five / six)练习四:句子重音发音根据下面的句子,选择正确的重音标注填入横线上。
1. I like to _________ books. (read / books)2. My _________ is green. (favorite / color)3. She _________ to the music. (listens / music)4. The _________ is on the table. (book / table)练习五:口语发音1. 用正确的发音朗读下面的句子: "It's a sunny day."2. 用正确的发音朗读下面的句子: "I have a pet dog."3. 用正确的发音朗读下面的句子: "What time is it?"4. 用正确的发音朗读下面的句子: "Where is the nearest supermarket?"这些练习题旨在帮助六年级的学生巩固英语的发音知识,提高英语口语交际能力。
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2
(1)为直观判断加速度和质量之间的关系,应根据实验数据作出的图象是_____;A.a﹣m1图象 B.a﹣m2图象
C.a ﹣图象 D.a ﹣图象
(2)实验中应保证m1_____m2(选填“等于”、“远小于”、“远大于”);
(3)实验得到如图2所示的一条纸带,相邻两个计数点的时间间隔为T,A、B
两点的间距x1和A、C两点的间距x2已测出,利用这两段间距计算小车加速度的
表达式为a=_____.
2、如图所示,传送带AB段是水平的,长20 m,某物块与传送带间的动摩擦因数
为0.1。
现将该物块轻轻地放在传送带上的A点后,(g 取)
(1)若传送带的速度大小是4 m/s,经过多长时间到达B点?
(2)若传送带的速度大小是8 m/s,经过多长时间到达B点?点,它与长木板B的质量相同,A、B间的动摩擦因数μ1=0.25。
求:(取g=10
m/s2)
(1)木板与冰面的动摩擦因数。
(2)小物块相对长木板滑行的距离。
(3)为了保证小物块不从木板的右端滑落,小物块滑上长木板时的初速度应满足什么条件
2
(1)为直观判断加速度和质量之间的关系,应根据实验数据作出的图象是_____;A.a﹣m1图象 B.a﹣m2图象
C.a ﹣图象 D.a ﹣图象
(2)实验中应保证m1_____m2(选填“等于”、“远小于”、“远大于”);
(3)实验得到如图2所示的一条纸带,相邻两个计数点的时间间隔为T,A、B
两点的间距x1和A、C两点的间距x2已测出,利用这两段间距计算小车加速度的
表达式为a=_____.
2、如图所示,传送带AB段是水平的,长20 m,某物块与传送带间的动摩擦因数
为0.1。
现将该物块轻轻地放在传送带上的A点后,(g 取)
(1)若传送带的速度大小是4 m/s,经过多长时间到达B点?
(2)若传送带的速度大小是8 m/s,经过多长时间到达B点?点,它与长木板B的质量相同,A、B间的动摩擦因数μ1=0.25。
求:(取g=10
m/s2)
(1)木板与冰面的动摩擦因数。
(2)小物块相对长木板滑行的距离。
(3)为了保证小物块不从木板的右端滑落,小物块滑上长木板时的初速度应满足什么条件。