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北师大初中数学八年级上册定理与证明1教案
求证：直角三角形的两个锐角互余．解析：分析这个命题的条件和结论，根据已知条件和结论画出图形，写出已知、求证，并写出证明过程．已知：如图所示，在△ABC中，∠C＝90°.求证：∠A与∠B互余．证明：∵∠A＋∠B＋∠C＝180°(三角形内角和等于180°)，又∠C＝90°，∴∠A＋∠B＝180°－∠C＝90°.∴∠A与∠B互余．方法总结：解此类题首先根据题意将文字语言变成符号语言，画出图形，最后再经过分析论证，并写出证明的过程．三、板书设计命题分类公理：公认的真命题定理：经过证明的真命题证明：推理的过程经历实际情境，初步体会公理化思想和方法，了解本教材所采用的公理，让学生对真假命题有一个清楚的认识，从而进一步了解定理、公理的概念．培养学生的语言表达能力．
小班安全教案 幼儿园小班安全教案3篇
二、展开活动： 1、引导幼儿说出做车都应注意什么样的安全问题，孩子们回答(引导说出做自行车、电动车一定要把好扶手，脚不能乱动，坐摩托车时一定要带头盔) 2、出示课件，做公交车时要注意什么?图片中的小朋友做的对吗?为什么?(图片中的小朋友把头伸到了车窗外，这样太危险了) 3、坐车还要注意什么?(不能吃东西，不能在车上乱跑) 4、继续出示课件，在车上要系好安全带，12岁以下的幼儿要坐到安全座椅上，小朋友不能坐到副驾驶的位置上，在公交车上一定要抓紧扶手，注意前门上车，后门下车。
垃圾分类的优秀教案 垃圾分类优秀教案3篇
1、交流分享，说说生活中的垃圾。 师：孩子们，老师给大家布置了任务，请大家记录这几天家里产生的垃圾，你们完成了吗?(完成了)快把记录结果和旁边的小伙伴说说吧! (1)小组交流。(拿着记录表，互相说说) (2)个幼介绍。(谁想把记录结果说给大家听听?)
人教版新目标初中英语七年级下册What does he look like教案3篇
所需要用到的句子：Who is that?That is Jack. I like him.Why do you like him?I like him because he is interesting.Task 4: 设计理想中的人类Step one: 设计理想中的人类的外貌。把全班同学分成若干小组，学生可以边说边在纸上画出他们的模样。Step two: 设计理想中人类的性格。学生们可以把那些能描述性格的单词写在图画的旁边。Step three: 每组选出一名同学，其他同组同学提问，他作简单回答，并说明原因。所需用到的句子：What does he or she look like?He or she ...What is he or she like?He or she is ...Why?Because ...Task 5: 挑战性活动调查性格是天生的还是后天形成的，让每个同学回家去调查一下自己成长过程中性格是否有变化，具体是怎样的，为什么会这样？ Teaching Aims:1. Enable students to have a general understanding of how to talk about people's physical appearance.2. Enable students to tackle some essential vocabularies and patterns about describing people. Provide them with necessary skills and methods.3. Create various chances for students to describe the persons they're familiar with, such as classmates, family members, teachers, idols, etc.
人教版新目标初中英语八年级上册Can you come to my party教案3篇
Step 3 (3b)First, tell the students when we talk about our future plans, we often use: I’m+verb+ing When we talk about what we must do, we use have to. Ask the students to fill in the blanks in 3b. The answers are: shopping, go to see, a test, I’m going, my family. Step 4 (3c)Let the students write an e-mail message to a friend. Say why you can’t visit next. Before the exercise, ask the students to give some possible answers and write them on the blackboard. So the students will feel easy to finish the writing exercise. After they finish it, Let them to correct it in groups first. Each group chooses theirs best one to read in front of the whole class. Step 5 ( planning a party )First read the conversation in the box together. Then ask the students to turn to page 88.Write down everything you have to do next week. Write in all the things you have to do . Ask the students to look at the list. Ask them “What day are you free?” This is when you can have your party. Step 6 (Self check 1 )Let the students to fill in the blanks with the words given. Change the forms of the words if possible. Then make their own sentences. The answers are: visit, playing, have to, study, comeStep 7 (Self check 2)Imagine you are Marie. Read the information and look at your schedule. Write replies to the invitation.
人教版新目标初中英语八年级上册Could you please clean your room教案3篇
一、 教学内容Section A 1a----1c二、 教学目标1.学习词汇do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, sweep the floor, clean the living room.2.句型 Could you please clean your room? Yes, sure.三、 教学准备 学生预习本单元所有的词汇多媒体课件 活动表 奖品四、 教学过程Pre-task1. Warming upEnjoy ourselves. Watch cartoon Cinderella. 看动画片段《灰姑娘》导如入本课话题和新词汇“chores”美丽善良的鬼姑娘因继母的嫉妒，每天得做所有的家务。片段的主题使学生联想到本课的话题。2. learn new words and phrasesLook! What is she / he dong? 看图学习动词词组do chores, do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, clean the living room.3. Guessing game.What is she doing ? 4. Pair work. 1a, Do you do these things at home? Write “Y” for “yes” and “N” for “no”.5. Listening . 1b , Peter’s chores or Mom’s chores?理解目标语Could you please clean your room? Yes, sure.Write “M” for Mom’s chores, “P” for Peter’s chores in the chart.6. PairworkLook at the picture,Ask your partner to do the chores that you see. 7. Interview Who is the most able at home? 1) What chores do you do at home? How often do you do the chores? Work in four, interview each of the students in the group, fill in the chart.
人教版新目标初中英语八年级上册I’m going to be a basketball player教案3篇
教学目标1.知识目标：（1）学习What are you going to be when you grow up?/How are you going to do that?句式。（2）学会用英语描述有关职业的表达法。2.能力目标：（1）能够谈论为实现理想所做出的打算和安排。（2）能够谈论未来自己与他人理想的职业及原因。（3）能用英语描述课余时间的活动安排，最终具备表达综合信息的能力。3.情感目标：新学期到来之际，让他们在学习、体育、饮食、特长、读书等方面制定计划，教育学生合理安排自己的课外生活，思考自己的理想职业及适合自己的职业。教学重点、难点本单元的重点为“be going to”表将来,want to be, what,where, when,how引导的特殊疑问句。难点是语言目标的实现。教材分析本单元以I am going to be a basketball player为话题，共设计了三部分的内容：一、Section A该部分有4个模块。第一模块围绕Do you think these jobs are interesting?这一话题展开思维（1a）、听力（1b）、口语（1c）训练；
人教版新目标初中英语七年级下册How was your weekend教案2篇
Teaching Goal:1. General aims:Talk about recent past events2. Particular aims:A. Language Focus.Talk about recent past events and think of the past events.B. Language goalsHow was….?It was …What did …do over the weekend?C. Language structures:(1). How was your weekend? I was great. Pay attention to no form.(2). What did you do over the weekend? I played soccer. We went to the beach.D. Useful words and phrases:Words: was, did, went, beach, over, project, test, wasn’t, false, number, geography, spend, week, most, mixture, their, had, little, cook, read, saw, change, everyone, sit, sat, no, anythingPhrases: did one’s homework, played soccer, cleaned my room, went to the beach, played tennis, went to the movies, on Saturday morning, over the weekend, cook … for, what about, do some reading, have a party, talk show, go shoppingE. Grammar language:Present simple past tenseRegular and irregular verbsF. Learning strategies:Tour and holidaysG. Interdiscipinary:H. Emotion and manner:Teaching time: 5 periodsTeaching procedures:Period One教学步骤、时间 教师活动 学生活动 媒体应用Step 1Free talk 3’ Ask some questions like:Who’s on duty today?What’s the weather like? Answer and talk about something.让同学们回答下列问题1. Do you like weekend? (Let some students answer)It takes them three minutes to talk about the question.2. Why do you like weekend? (let the students answer) Most of the students like the weekend此时教师用汉语问：“在周末期间问你干了什么?这句话用英语这么回答?Let the students guess.At last the teacher give them right answer3. What did you do over the weekend?(板书、学习)
人教版新目标初中英语八年级上册How do you make a banana milk shake教案2篇
1. First, ... then, ... next, ... finally, ...首先，……然后，……接着，……最后，……这是英语中表达做某事的步骤的一种说法。如果步骤较多，还可以说：first-next-after that-later on-finally/at last通常你会听到说英语国家的人在说 first, next, then, finally 和后面的内容时，他们会做一些停顿。这样就能提前告诉听者接下来讲的是一系列的步骤。这一点在朗读和听力中应特别注意。2. how many, how much均为疑问词，同是“多少”，但用法不同。请看：how many修饰可数名词复数，how much修饰不可数名词。但在用法上，同学们常犯如下错误：1) [误] How many are there bananas on the table?[正] How many bananas are there on the table?[析] how many, how much 中的many，much是形容词，常修饰名词作定语，故后面跟名词。2) [误]How much tea are there on the table?[正]How much tea is there on the table?[析] how much修饰不可数名词时，谓语动词用单数。how many与how much的区别可简记为：前how many：问“多少”，复数名词后面跑；how much问“多少”，不可数名词单数好。前者答语用基数词，后者答语用数量关系。
人教版新目标初中英语八年级上册How was your school trip教案2篇
“Go for it!” is based on “Task-Based Language Teaching”. It adheres to “The authenticity principle”, “The form-function principle”, “The task dependency principle” and “The principle of learning by doing”. These principles all accord with the demands of curriculum focus.In and of Grade Seven (II), “Go for it!”, students have learned “The Simple Past Tense”. And it appears again in of Grade Eight (I). teaches students more about how to talk about events in the past. In addition, it gives affirmative and negative statements in the past tense, such as the sentence patterns “Did you see …?” “Were there …?” “Did you go …?” As the first part of Unit 8, Section A opens with a picture presenting the last school trip in the aquarium and continues with several step-by-step practice activities, which are all good for students to master “The Simple Past Tense”. Doing well in Section A will help students integrate the new target language with that in Section B. Thus, they can describe the events in the past freely and foster their own ability of reflecting and practicing. II. Teaching ObjectivesTeaching objective is the beginning and aim of teaching activities. According to the overall goal of the English elementary course--- improve students' synthetic ability of language application, which should be based on the development of students’ “Language knowledge”, “Language skills”, “Character building”, “Learning strategies” and “Cross-cultural awareness”. The teaching objectives are described as follows(I). Knowledge objectivesi. Master the simple past tense of regular and irregular verbsii. Recite the new words and expressions about the last school trip in the aquarium, including their pronunciation and intonation
人教版新目标初中英语八年级上册What are you doing for vacation教案2篇
Teaching goals : 1. Words & phrases: babysit ,get back , fishing , rent , think about , decide(on) , tourist etc. 2. How to talk about future plans . 3. 现在进行时表示将来计划或行动. 4. 特殊疑问句（where , when , how long引导） Important and difficult points : Drills :What are you doing for vacation ? I’m watching TV . When are you going ? I’m going … . How long are you staying ? We’re staying for five days . Teaching aids : cards and a tape ,a large wall calendar . Period 1 Teaching procedures : Step 1Leading in1. Free talk . 2. Put up the wall calendar . T: I’m staying home on Saturday (pointing to next Saturday ).Ss repeat . Ss: I’m staying home on Saturday . T: OK. Today we’ll learn how to talk about future plans. Step 2Pre-task SB Page 13 , 1a . 1. Look at the picture carefully and tell what you see in the picture . 2. Write the activities from the pictures in the box and add some more . 3. Practice reading . Step 3While-task1. Using the activities we write in 1a to make conversations .For example :What are you doing for vacation ? I’m visiting my uncle . 2. Pairwork .Practice in pairs . 3. 用第三人称练习对话.
人教版新目标初中英语八年级下册What should I do教案2篇
说明：在帮Li Lei提建议的同时，教育学生如何学好英语。第三课时教学目标1. 语言目标：a) 词汇: Original, in style, haircut, the same as.b) 语言结构:My friend wears the same clothes and has the same haircut as I do.2. 能力目标:大多数学生能够谈论自己喜欢哪种服装，提高查找信息的能力。3. 情感目标:学会如何与朋友相处，要有自己对时尚的看法。教学重点掌握一些重要词汇。教学难点学会谈论问题，并能提出书面建议。◆教学突破首先针对Erin的问题，提出个人的建议，模仿2c部分的对话展开双人交际Pair-work；听老师诵读3a部分的信件，并找出LEFT OUT的问题所在；学生完成3b部分的内容，给Left Out提出书面的建议；学以口头形式提出自己目前存在的某个问题，讲给大家听，让同学们给自己提出一个建议，并作笔录；学生两、三个人分成一组，随意性地进行口语交际，谈论P14的第4部分的某个问题，相互交换意见。
人教版新目标初中英语八年级上册I’m more outgoing than my sister教案2篇
1 交通工具的比较此活动为小组活动。学生通过讨论找出到达某一城市可乘坐的各种交通工具，并选择最佳出行方式。Teacher:We’re going to Shanghai. How many ways can we use to get there? Yes, there are four ways: by bus, by plane, by train, by ship. Please discuss how you are going to get there.操作建议：（1）学生以小组为单位展开活动，谈论本组所选择的交通工具。（2）各组选代表向全班汇报，阐述本组所选择的交通工具的利和弊。完成任务所需要的语言结构：We can go there by ship. It’s more comfortable and cheaper than any other transportation.We can go there by bus. It’s cheaper but it takes longer time.2 哪个城市更合适？此活动具有挑战性。假设中国要举行2014年世界杯足球赛，分别从历史，人文，天气等方面对各城市（北京，大连，上海，昆明）进行比较，选择最佳举办城市。T: Imagine China is holding the 2014 FIFA World Cup. Which city do you think is the best for the World Cup, Beijing, Dalian, Shanghai or Kunming? Let’s work in groups. If you choose Beijing, please join the Team Red. If you chose Dalian, please join the Team White. If you choose Shanghai, please join the Team Blue. If you choose Kunming, please join the Team Green. Please show us its advantages. Then let’s see which team will win.
人教版新目标初中英语八年级上册What’s the best radio station教案2篇
教学重点和难点：运用所掌握的语言描述，比较不同地点的特点。在练习中学习掌握英语比较级和最高级的用法。课前准备分配小组,每组五至六人。通过上网或翻阅报刊杂志等方法，确定旅游线路，做出基本的旅游计划。教学设计：本节课流程图 学法指导：1．由于这是一堂新课，在教学中应注意面向全体，发挥学生的主体性，引导学生积极参与，激发学生的求知欲和学习积极性，指导学生积极思维，主动获取知识，养成良好的学习方法。逐步学会独立解决问题。总之要尽可能调动学生的非智力因素促进智力因素的发展。教法选择：1．电化教学法2．课堂讨论法3．任务型教学法采用这些方法的目的是为了充分调动学生的学习积极性，使学生变被动学习为主动学习。通过电脑形象的演示，加强印象，提高兴趣，突破难点，提高教学效率，进而增大教学的容量和信息量。充分体现教师为主导，学生为主体的教学原则。
人教版新目标初中英语八年级下册If you go to the party, you’ll have a great time教案2篇
区分宾语从句、定于从句和状语从句宾语从句和状语从句，都叫做主从复合句。宾语从句主要是中考必考的，是初中阶段必掌握的从句，宾语从句主要是掌握三要素，所谓宾语从句，就是宾语在主从复合句当中充当宾语的一个句子，叫做宾语从句。主句的谓语动词是及物动词，后面如果是词或者是短语的话，是简单句，如果是句子的话，肯定是宾语从句。I know that he good at English.就是宾语从句，三要素，一要素是要注意连词，连词一共学了三类连词，一类连词是that口语当中可以省略，就像刚才说的那一句，I hear he is good at English.还有疑问代词、疑问副词，how where when，疑问代词、疑问副词。还有一类连词weather是否的意思，不是状语从句当中的如果，这一定要和如果区分开，这是是否。I don't know if he interested at English。宾语从句要注意if是连词。第二要素是语序，要用陈述举语序。比如说你家有几口人，我们都说How many people are there in you family?但是这是简单句，一旦说成宾语从句，你可以告诉我你家有几口人吗？Could you tell me how many people there are in you family ?
人教版新目标初中英语八年级下册It’s a nice day, isn’t it教案2篇
"Hello! Welcome to English class! Introduce yourself. Meet your new classmates." That's what the teacher says. What do you say? "Oh no!" It can be difficult talking to new people. But it can be fun, and you can make friends. How do you do it? Make small talk. Small talk is polite conversation. "Wang Nan is a great pingpang player, isn't she?" "I'd love to meet her, wouldn't you?" "It's been raining a lot, hasn't it?" Tag questions are a form of polite speech. To make small talk successfully, you should know how to make them. You should also know what topics to talk about. Try to learn this unit carefully. The next time you're in English class, you'll find out. Making small talk's easy, isn't it? (“你好！欢迎你！请做一下自我介绍。认识一下你的新同学。”通常在课上老师会这样说。你会说什么呢？“噢，不！”与陌生人谈话太困难了。但是这也很有意思，并且你还能交到朋友。你该怎么做呢？闲聊。闲聊指得是礼貌的对话。“王楠是一个很棒的乒乓球运动员，不是吗？”“我希望自己能认识她，你呢？“今年的雨水很多，不是吗？”反意疑问句是一种礼貌用语。为了使得谈话成功，你应该知道怎样去进行闲聊。你还应该知道与不同的人该谈论什么样的话题。认真的学习这个单元吧，下次在英语课上，你会发现与大家展开谈话是一件很容易的事情，不信我们来试试。)
人教版新目标初中英语八年级下册He said I was hard-working教案2篇
This activity introduces some new vocabulary and provide oral practice using the target language.Task 1 . Ask four students to stand in front of the class, and the teacher asks them the following questions as a reporter.1.What are you going to do when you grow up?2.What are you going to do next week?3.What are going to do after school?The students will give different answers, then ask a good student to report what they said.I am going to e a doctor.What did she say?----------She said she was going to be a doctor.I am going to have a party on Friday night.What did he say?-------He said he was going to have a party on Friday night.I am going to do my homework.What did she say ?------ She said she was going to do her homework.I am going home after school.What did she say?-----She said she was going home after school.Say In this unit we are going to learn to use words like to report what someone said.Task 2. Read the instructions. Then ask a student to read the four questions. And write the words on the Bb. Explain what soap opera is.Task 3. Ask the students to Look at the pictures, point out the TV screens in the picture. Ask one girl to read what Marcia said.What did Marcia say? She said She said she was having a surprise party for Lana on Friday night. Repeat the other pictures in the same way.Activity3. Listen and number the pictures in activity 1a.
人教版新目标初中英语八年级下册How long have you been collecting shells教案2篇
Step Ⅱ Show the new words on the screen and teach the new words. Read the new words to students and ask them to repeat.Step Ⅲ 3aThis activity introduces new vocabulary and provides reading practice using the target language.In this activity first look at the four pictures.T: What can you see in the pictures?Ss: Four snow globes.T: Right. There are four snow globes in the pictures. And what are they?Ss: They are a monster, two polar bears, two penguins and a birthday cake.Write these words on the blackboard: snow globe; monster; polar bear; penguin and birthday cake. Read them to the class and ask students to repeat each one. Make sure students understand each word.Use a computer to show the E-mail message on the screen and read the message to students.Get students to read the e-mail on their own, and then draw lines connecting each snow globe and its description.Correct the answers.AnswersA line should connect each snow globe picture with the words that describe it in the letter.Step Ⅳ 3bThis activity provides writing practice using the target language.First review Activity 2a on Page 47.Then ask students to complete the message according to Activity 2a.Some partial sentences are given to students. Write about one person's collection.When students work, walk around the room checking the progress and offering help as needed.When they finish, ask some students to read their messages to the class.
人教版新目标初中英语八年级下册What were you doing when the UFO arrived教案2篇
(一).知识方面: 1.培养学生能运用过去进行时来描述、谈论过去某个时间正在发生的事情或动作的意识和能力，能就过去某个时间正在发生的动作做出正确的描述。 2.培养学生的想象力和角色扮演的合作能力。 3.培养学生讲述过去发生的事情经过的能力。能正确运用一般过去时来讲述故事。 (二).技能方面: 1.本单元的语言目标是Talk about past events and tell a story（谈论过去的时间和讲述一个故事），围绕这一目标，要涉及句型： What were you doing when the UFO arrived? ----I was sitting in the barber’s chair. The barber was cutting my hair. 因此必须学习standing、studying、cleaning、sleeping、cooking、making、eating、cutting、等表示地点的词，以便为上述句型提供语言材料。2.学习过去进行时的有关知识。Was/were+现在分词，是该时态的表达式。 3.在学习过程中，要区分The boy was walking down the street when the UFO landed.和While the boy was walking down the street, the UFO landed.这两种由when和while引导的状语从句的句型结构。注意它们的不同。
人教版新目标初中英语九年级上册Teenagers should be allowed to choose their own clothes教案2篇
Step 1 Greeting Greet the class and check the homeworkStep 2 A duty report The S on duty gives a report on the rules in his home and lead in 3a “Sun Fei’s and Wu Yu’s rules” Step 3 ReadingSs read the conversation and write the two girls’ rules in the chart. Check the answers.Get Ss to read after the tape and then read aloud by themselves. Then, T explains the language points.Step 4 Pairwork 3bRole play. Use the information in chart to practice with the conversation in 3a covered. They can look at the sample conversation in the right box.Step 5 Task 2 “Who’s the best reporter?”Make a survey by asking any 5 students the questions in the chart in activity 4. Then give out a report about it. See who is the best reporter? And the best reporter will get a nice ball-pen.Step 6 Summary and homework:Write out the report in your exercise-books.Period ThreeStep 1 Greeting and a duty reportThe S gives a duty report talking about his experience of being late for school. Lead in the question “Do you ever get to school late? How often do you get to school late? Always, usually, sometimes, or never?Step 2 1a Get Ss to finish writing.Step 3 Pairwork 1b Get Ss to talk about their answers with their partners using the sample conversation in the box on the right.Step 4 Listening practice2a Lead-in: What will happen if you get to school late? What about Peter? Let’s listen to a conversation between Peter and his father. Get Ss to finish 2a (As usual, for the first time, Ss only listen.) Check the answers.