7学案1
实验教材新学案语文七年级
实验教材新学案语文七年级一、基础知识巩固本学案旨在帮助学生巩固语文基础知识,提高语文素养。
在每个单元的开头,我们会提供一系列基础知识练习,包括字音、字形、词语辨析、成语运用等方面的内容。
这些练习旨在帮助学生掌握常见汉字的正确读音和写法,理解常见词语的含义和用法,为后续的阅读和写作打下坚实的基础。
二、阅读能力提升阅读能力是语文学习中不可或缺的能力之一。
本学案通过精选各类阅读材料,包括现代文、文言文、诗歌等多种文体,提供阅读练习和解析,帮助学生提高阅读速度和阅读理解能力。
学生通过完成这些练习,可以逐步提高对文章的理解和分析能力,加深对语言文字的感知和领悟。
三、写作技巧掌握写作是语文学习中必不可少的一部分。
本学案注重培养学生的写作能力,通过提供写作指导和范文示例,帮助学生掌握常见的写作技巧和方法。
学生可以通过模仿和借鉴范文的写作技巧,逐渐提高自己的写作水平,培养良好的写作习惯和表达能力。
四、语言表达实践语文学习的最终目的是运用语言进行表达和交流。
本学案注重实践,通过组织学生进行口头表达练习,如演讲、朗诵等,培养学生的语言表达能力和自信心。
这些活动有助于提高学生的语言表达能力,锻炼学生的逻辑思维和创造性思维。
五、文言文阅读解析文言文是中华文化的瑰宝,也是语文学习中不可或缺的一部分。
本学案精选了一些经典的文言文篇目,提供详细的注释和解析,帮助学生理解文言文的语法结构和表达方式。
通过学习文言文,学生可以更深入地了解古代文化和历史,培养对中华优秀传统文化的兴趣和热爱。
六、文学作品赏析文学作品是语文学习的重要内容之一。
本学案收录了一些经典的文学作品,包括小说、散文、诗歌等,提供作品赏析和解读。
学生通过阅读和欣赏这些文学作品,可以拓展视野,提高审美能力和文化素养。
同时,通过对文学作品的深入分析,学生可以培养独立思考和批判性思维的能力。
七、语文综合运用语文学习是一个综合性的过程,需要学生在听、说、读、写各方面全面发展。
初一典范英语学案7(1-6) - 副本
太原市外国语学校七年级典范英语导学案Book7(1-6)初一年级组2021.09致家长和学生关于这套书:《典范英语》中每一本均是一个生动有趣,极富内涵的小故事,在引人入胜的情节中,用故事激发学生学习英语的兴趣,同时,扩大词汇量,提高阅读能力。
而其本身作为英国血红色呢个学习母语的材料,体现了地道的英语文化,有别于学生了解文化差异,培养学生的想象能力和思维能力,提高综合语言素养。
关于学习目标:它和学校统编课本的侧重点不同:统编课本以夯实基础知识为主,而《典范英语》侧重于扩大学生的阅读量,培养学生语感,提高学生“读”的能力:如朗读,阅读,泛读的能力。
关于学习方法的建议:行有意义的内容出发,以内容为核心,了解故事大意,用讲故事的方法学习英语。
具体如下:1.朗读方面:大声跟读,模仿CD中的语音,语速和语调。
2.泛读方面:不需要逐一查出不认识的单词的意思,而要学会通过文章题目,图片或上下文等线索猜测词意、句义。
3.阅读方面:采用整进整出的方式,从中自然吸收语言。
而非细扣词语、语法等内容。
4.角色扮演、表演方面:通过实践,进入人物内心世界,在语境中培养“说”的兴趣,体会成功的乐趣。
5.关于日常要求:每天抽出10--20分钟大声朗读《典范英语》,每周完成一部作品,并开展各种语言实践活动,如通过复述、讨论、改写、续编。
自创等方式来进一步学习。
最后,我们相对同学们说:在刚接触《典范英语》时,你可能会遇到很多困难,感到无所适从。
但如果你有恒心,有毅力,紧跟老师,坚持一段时间后,你会欣喜的发现自己的阅读能力提高了!随着知识和能力的积累和提升,读书会变得越来越轻松愉快!愿同学们学习顺利,在“读”的过程中不断超越自我!Good English 7-1……Walrus joins in导学案This is a story about ANIMALS. Let’s go into the animal’s world.※First, meet the animals:__________________________ __________________________________________________ _________________________________________________Where did they live? _________________※ The animals of the Arctic were ________, because there was going to be ____________, and ANYONE could be in it. What would they do? And Why?※ Everyone would play in the big night ’s show except Walrus. He wasn ’t good at anything. However, he tried to join in with others. Whathappened then? How was every animal’s show going at the big night?Let ’s read a most exciting part.Which part do you feel most excited? Why?do skatingdo tumblingdo singingdo divingPlot AnalysisWALRUS HASRUINEDMY ACT.before Walrus joined in after Walrusskated _______ and__________ and _________.She skated ______●Walrusall.●He ___________Yes. Walrus ruined all the acts.The show was over. What’s the end of the story?(1) The audience__________.A. got angryB. cheered like mad c. became unhappy(2) They thought __________.A. Walrus was a clown and part of the show.B. Walrus had ruined all the acts.C. Walrus was good at everything.(3) Fox, Bear, Seal and Whale ___________A. hated Walrus.B. felt sorry for Walrus.C. accepted Walrus.※Read the following words:1. light night sight right2. show snow row low3. properly surely truly sweetly beautifully4. wish blush splash5. dare stare※Enjoy reading the sentences and write yours.1.I have a very fine voice.2.I won a prize for diving at school.3.He was terrible at singing.4.At last, the big night arrived.5.Everyone cheered.6.Fox skated forwards and backwards and sideways.7.He bumped into Fox, and Fox went flat on her face.8.Everyone clapped wildly.9.She gave Walrus a don’t-you-dare stare.10.Seal stopped singing and burst into floods of tears.11.He was pretty certain that walrus could not ruin his act.12.He tried and tried his very best not to join in.※Story WritingEveryone in my class was very excited. There was going to be a thanks-giving party and anyone could be in it.“I’ll___________,” said________, “_____________!”“I’ll___________,” said________, “_____________!”“I’ll___________,” said________, “_____________!”“I’ll___________,” said________, “_____________!”※Other Words and Sentences you like (感兴趣词句摘抄).I like thinking!1、Do you know someone in your class like Walrus? Or are you a “Walrus” in your class? What do you want to say to him or yourself?2、Which animal do you like best in the story? Why?How to write a book report?Summary:1.The setting—where does the story take place.2.The main characters—who is the story mostly about. Give a brief description3The plot—what happens to the main character? Don’t report every single thing that happens in the story. Pick only the most important events.Reader’s opinion:•What do you think of the story?•What do you think of one of the characters?Sample(范文):The story took place in the animal world. There was a showand anyone was in it. Arctic Fox did skating. Polar Bear did tumbling. Seal did singing. Whale did diving. Walrus tried tojoin them, but he seemed to ruin their acts. The show wasover. The audience cheered like mad. They thought Walrus was a clown and part of the show. Fox, Bear, Seal and Whale accepted Walrus. Now Walrus is a very good clown.I like the story. It tells us a message that everyone has his own talent.Good English 7-2……Noisy Neighbours 导学案※ Let ’s go into a grim, grey town to meet some new friends.※ Mr. Flinch was unhappy every day. What did he do to change his life?ID cardName ______ Job ______House ______Hobby ______ID cardName ______ Job ______ House ______ Hobby ______ID cardName _________________ House _________________ Character unhappy &He put _________________in the fridge .He said “ ______________________________ . ” That night, Mr. Flinch put his head down Poppy ’s chimney and gave a ________ “Wooowooowoooo !” and he said “___________________ ”Next day, Carl was sitting outside in the road, with____________________________. He started tosell ______ breakfast. He sai d “_____________ . ”“Last night, ang els sang down my chimney! They did, Ipromise!”At night, she _________, with lots of cymbals andtrumpets.※Mr. Flinch’s nasty tricks did not work. What did he do next?Mr. Flinch’s nasty tricks did not work, but soon he got a brilliant idea. He showed Carl ______________________ money.Mr. Flinch : The day you move house, all this is yours !Carl : ______________________, I’ll be happy anywhere. I’ll move out________ I can sell the house!Mr. Flinch went to Poppy’s house and offered her _____________ money.Mr. Flinch :________________________ !Poppy : As long as I have my music, _________________. I’ll move out ________ I can sell my little house!He felt in his empty pockets and gulped. “All that moneygone!Ah,_____________________________________”※Where did Carl and Poppy move?Carl moved into __________ and Poppy moved into ____________ .Carl had a house-warming party. He and Poppy sang, because they were so happy: “______________________ .”Mr. Flinch heard it right through the wall of his house... Even inside his cupboard, even with a towel round his head.※Read the following wordsea:head dead breadmean clean beam sneak teach peaceor:motorbike morning※Read the following sentences•In a ________house in a grim, grey town lived an unhappy man.•He never gave away a penny. He never________ a smile either.•“This can’t ________ ”, Mr. Flinch thought to him self.•That will ________ him. Nobody wants to ________ with rats.•__________ I can mend cars, I’ll be happy anywhere.•I will move out just __________ I can sell my little house.•In a few days, Mr. Flinch’s neighbour had ________ their houses.•They help ________ to carry the big things.※Other Words and Sentences you like (感兴趣词句摘抄).※Please a short passage about the person in this book. Here is an example.There was a jolly red house next to Mr. Flinch’s grim, grey house. It belonged to Carl who mended cars. He loved any cars -- motorbikes, vans and lorries. He loved his work so he was far too happy.There is a1. Do you think money is the most useful thing to solve(解决) the problem?2. Are you a Mr. Flinch in your life? Can you give some suggestions(建议) to Mr. Flinch?Good English 7-3……Princess Pip’s Holiday导学案※Everyone in Pip’s castle was very busy. Do you know who are they and what they did ? Match them please.Princess Pip run around with piles of vestsThe King choose sun hatsThe Queen polish the moneyMaid ask and scowl※Pip with her parents got to the seaside at last. Do you want to know what happened to them? Let’s listen and imitate chapter two and then role play in groups.※Pip decided to go home withher maid Daisy. Do you know whathappened on the road home?At a stall ___some fish sticks“_______________________.”________ _____ fish and____ sand house “It’s not too bad here. I want to stay here all the time.”________ rode the merry-go-roundand_____the rollercoaster“_______________________.”I like learning!※Read & Dictate-ly nearly firmly happily sadly crossly-ai maids afraid wait Daisy-e pet net let get vest best test-a place pale made game race-oa coach coat coaster moat-ou about sprout shout※Translate the phrases into Chinesesun hats____________________ run around ____ ___ ____ on holiday___________________ There’s no room for_fold one’s arms _______________ have a wonderful timestomp off ____ That does it_____________________ look after ____ keep on ________________________ at least_____________________ a bit longer______________________ take out _____ _ ___ go across_______________________ taste best___________________ if you like_______________________ put on______________________ without shoes on _________________ take off____________________ all the time _____________________ pick up ______ go pale_________________________ stare at____________※Enjoy reading the sentences and write yours.1.Can I take Dobbin on holiday?2.I’m afraid there won’t be room for a pony on the coach.3.There’s no room for snakes.4.The holiday is going to be BORING.5.It did take a long time to get to the seaside.6.Pip didn’t feel very well.7.There was a girl waiting by the castle door.8.That’s just like home.9.She had been walking round the castle walls all morning.10.If you stayed here a bit longer, you might start liking the seaside.11.I’ll show you where the fish come from, if you like.12.It was nice without shoes and stockings on.13.I’ve found a place where the ground is made of gold..14.What a perfect place for my dunchair!15.What a pity we have to go home tomorrow!※Other Words and Sentences you like (感兴趣词句摘抄).I like thinking!※Discussion.1. What is Pip like? What about Daisy?2. Which of the two would you rather have as a friend? Why?※Writing (work on one of them)1. Write about your holiday trip to a place in around 100 words.2.Write a summary of the story in no less than 100 words.(Tips: Make a list of main events; use connective language, such as: at first, soon, late that day, next morning etc. to put the detail events in order.)Good English 7-4……Oh, Otto! 导学案※Let’s have a talk!If a new student comes to our class,what will you ask him?※Warming up:the students in Class Four will meet a new friend, his name is Otto, now please look at the picture and guess which boy is Otto.Can you describe Otto?_____________________※Do you know the other people in the picture?※Otto always makes his classmates laugh. Do you want to know why? Now please look at the mistakes Otto has made. Do you know their meanings?1. I want you to take care of our new boy and give him a hand i f he needs it. 1. I’m not new. I’m seven and a half. AndI don’t need a hand. I’ve got two hands already.2. Just sit down and be a dear. 2. I don’t think I can be a dee r.※Charlie tried to do the same like Otto, but Miss Underwood frowned at him and said:“____________________________”※So Charlie is cross. He didn’t like Otto.※But that afternoon, students in Class Four were very happy, because they would have a game called “Treasure Hunt”.Please read the clue and write down what they said,then role play what the classmates did and how they found the treasure.Jo:___________________________________________________________________________Otto:____________________________________________________________________________________________________I like learning!※Read the words1. space came take made2. smile bright tried decide3. teacher eaten scream mean4. Charlie start star hard5. dear beer tear hear※Fill in blanks.something important, take care of, give sb. a hand, look forward to, pick up, be busy doing, make up, make mistakesThe children in Class Four __________working. Then their teacher, MissUnderwood, said: ‘I have _____________ to tell you.’Miss Underwood told Otto to sit with Jo and Charlie and Josh. Then she looked at Jo and added, ‘I want you to ___________ our new boy and ____________ if he needs it.’ That afternoon the class was having a Treasure Hunt. All the children _________________ to it. They all went to find the treasure. Jo and Otto worked in pairs and Jo ________a spot and found a map. “A bear!” said Otto. “Jo told me you were __________that story to scare me”. “Don’t worry,” said Otto. “Everyone __________.请翻译下面的句子:1. You know better than that! Get on with your work._____________________________________________2. Otto made a lot of mistakes._________________________________________________3. If you stand there, you’ll get eaten by a bear,’ said Charlie.__________________________________________________4. Charlie and Josh were looking for treasure in the playground and they were getting fed up.___________________________________________________5. You and Josh seem to have lost your heads, today!’___________________________________________________※Other Words and Sentences you like (感兴趣词句摘抄).After learning the whole story, you must know what happened to the students in Class Four. Do you think that Miss Underwood was right to forgive Charlie for making fun of Otto? Why? Please write a summary of the story.Good English 7-5……Captain Comet and the Purple Planet 导学案This is a science fiction story. Do you know the things?※Let’s go into outer space. Match them please.space stationshuttlecometasteroidDo you like outer space? Would you like to go into his world with me?It was a q________ morning at Stardust S_____S_____. Captain Stella was checking the spaces_________, Captain Comet was watering the plantsand Spanner the r______was b____.What would he do?He p_______the red button. Captain Comet and plant pots allf____above the floor!Later he pressed the red button etf_____ ______the floor and g____”SPANNER!“Next,Spanner did some silly things again and brought much trouble. Let’s look at what happpened?Spanner found out a flashing dot and guessed it must be a p_____.So Comet and he s____ ____to look for the new planet .He didn’t listen to Comet’s suggestions and m_____ a flag to put on Planet Spanner.They l_____the shuttle on the planet.Spanner fastened the flag and turned rod into a nice sharp.While Comet found some o_____g_____ p____spikes.Before Comet could stop him,Spanner had hammered the sharp flagpole into ground.Then they blasted off and found a opening of a big ,darkcave .Suddenly two huge,angry eyes c________ ______. Spannner gasped it was a SPACE MONSTER!How dangerous! The Space Monster C_____them everywhere.What about the ending?12Theending3※Captain Comet leaded the space monster into a group of asteroids and when it starated to eat them,he and Spanner made their escape.At last, Captain Comet t____one last look at the purple monster and smiled. He said to Spanner ,”A____ _____ , it does have YOUR FLAG s____ _____of its bottom!”※Read the following words:1. map gap snap strap2. spanner scanner3. got pot dot slot4. flash splash smash5. turn purple surface6.cried tired6.far dark large apart shark sharpener stardust※Enjoy reading the sentences and write yours.※Read the following sentences1.I told you ________ touch that red button.2.Spanner was _____________ the mess for the rest of the morning.3.Everyone stopped what they __________ and ________ .4.They strapped themselves into their seats and Comet _________.5.Oh, they know. After all, it does have YOUR FLAG _____________its bottom.※Other Words and Sentences you like (感兴趣词句摘抄).I like thinking!※DiscussionDo you like Spanner? What do you think of him?※WritingImagine you just returned from the outer space. Whathave you met? Write a letter to tell your friends your story.Good English 7-6……Jungle Shorts1. Do you like playing football?Do you want to have football lessons?What do you need for football lessons?2. Mr Cox, the teacher, gave Lenny a letter.What did the letter say?________________________________ Was Lenny happy? Let’s find it out.3. Does Lenny love football?________________________________4. The students needed to buy some _______ .Lenny wanted ______________________ .But he got ____________.5. Did Lenny like the jungle shorts?________________________a football kit________________________________6.To Lenny’s surprise, who wore the same jungle shorts as his?________________________________7. Where did the five children live?________________________________8. What was the name of their team?________________________________9. Whose team was the winner?________________________________10. Who washed the children’s kits and cleaned their boots?________________________________※Description words: to describe the changes of Lenny’s feelings.Match them!Self-checkLenny heard the news that Class 3 was going to have ______ ______. He was very ___________. But his mum only agreed to buy him a pair of new _____.He was ___________. At the market, they bought a pair of __________. Lenny was so_________.When he wasgoing to have football lessons, he was ________ to wear the jungle shorts. At that moment, he was very _________ to find that other four students had the same shorts as his! He felt better, and did well in the game. Finally, he scored 5 goals, and his team were the champions. Lenny was very _______ and _______ of himself.※ Read the following words:1. rush mum much jungle but fun2. white stripy child mind• 吃惊的 • 失望的 • 担心的 • 紧张的 • 羞耻的 • 伤心的 •骄傲的 •开心的 • 激动的 • happy • excited • disappointed • ashamed • surprised • nervous • worried• sad• proud3. give quick strip children4.good football took look5.roof school soon boot※Other Words and Sentences you like (感兴趣词句摘抄).To be a successful footballer, which factor is more important?☐Have lots of nice football kits. And they’re expensive.☐Love football very much.☐Practice it a lot.☐Have a talent in football。
Module 7 Unit1学案
Module 7 Time offUnit 1 She asked if I was practising too much课型:听说课教学目标:1.掌握本单元的词汇、短语、语法要点。
2.掌握直接引语和间接引语的用法。
重难点:直接引语和间接引语的转述。
教学过程:【课前预习】预习词汇:布置学生预习词汇,能够根据音标读出并了解汉语意思,力争将单词记住。
课前朗读:朗读课文【课内探究】导学案(一)新课导入1.检查词汇预习不工作,休息___________ 几乎不________ 交通____________通过____________ 所有的,完整的_________________打电话,电话____________ 我自己_________________2. 将下面直接引语转述为间接引语1)She said to me,“Please write to me soon.”______________________________________________2) The teacher said to John,“Be quiet.”________________________________________________3) We said to him,“Don’t go out at night, please.”_________________________________________________4) They said to us,“Don’t talk in the class.”___________________________________________________5) He said,“Do you like this film?”__________________________________________________6) She asked me,“What are you doing now?”__________________________________________________7) They said,“Are you doing your homework?”__________________________________________________8) He said,“I play the violin every day.”__________________________________________________(二)听力训练(1)Listen and answer : Why didn’t Sally want to play in the final practice?_______________________________________(2)Listen and fill in the blanks.Mr. Styles: Hello?Sally: Is that Mrs. Styles? This is Sally Maxwell _______.Mrs Styles: Hello, Sally. Are you a good day?Sally: Yes, we’re _______ ___ in Beihai Park later. Mrs Styles: That’s a ________park. And the air is very ______ today. Make sure you_______ __ Baita. Sometimes you can see more than a few hundred metres, but today you should have a great ________. How can I help you?Sally: My hand and my arm ________, and I don’t want to play in the final practice. I only want to play at the Starsearch concert with __________ the orchestra.Mrs Styles: Oh, I’m sorry! _______ you __________ too much?Sally: No, I’m not.Mrs Styles: Can I help you, Sally?Sally: No, Please don’t _________.Mrs Styles: Well, look after ________. Get some rest and get better soon. Sally: OK. Thanks. Bye.Mrs Styles: Bye.(三)对话处理1.读前听Listen and answer the questions.①How is the air in Beihai Park? _____________________②Will Sally play the solo ? ___________________________2. 听后读Read and choose the best answer.( Activity 4)3. 读后学(1)短语学习1)放假____________ 2)欢迎来到北海公园____________3)全中国___________4)听到某人正在干某事_______________5)保护环境_________________6)爬上,攀登______________7)建议做某事__________ 8)……的其余部分______________9)独奏___________________ 10)在街上_________________ (2)语言点学习(自主学习,小组讨论)1) I can hardly hear the traffic in the streets and no one is shouting.hardly (adv.)意思为“几乎不”(用于be/情态动词之后,实义动词之前,表示否定概念)【例】:His voice is too low,_________________(我几乎听不见).2)Let’s walk around the lake, cross the bridge and climb up to Baita.区别:cross (动)穿过{across (介) go across / walk across【例】:当你穿过街道时要小心。
学案7:1.5.1 全称量词与存在量词
1.5.1全称量词与存在量词【学习目标】1.能够记住全称量词和存在量词的概念.2.学会用符号语言表达全称量词命题和存在量词命题,并判断真假.3.理解全称量词命题、存在量词命题与其否定的关系,能正确对含有一个量词的命题进行否定.【要点梳理】1.全称量词与全称量词命题2.存在量词与存在量词命题【思考诊断】1.x>2是命题吗?对任意的x∈R,x>2是命题吗?2.全称量词命题和存在量词命题中是否一定含有全称量词和特称量词?3.判断正误(正确的打“√”,错误的打“×”)(1)在全称量词命题和存在量词命题中,量词都可以省略.()(2)“三角形内角和是180°”是存在量词命题.()(3)“有些三角形没有内切圆”是存在量词命题.()(4)内错角相等是全称量词命题.( )【课堂探究】题型一 全称量词命题与存在量词命题【典例1】 判断下列语句是全称量词命题,还是存在量词命题.(1)凸多边形的内角和等于360°;(2)有的力的方向不定;(3)矩形的对角线不相等;(4)存在二次函数y =ax 2+bx +c 与x 轴无交点.[规律方法]判定命题是全称量词命题还是存在量词命题,主要方法是看命题中含有全称量词还是存在量词.要注意的是有些全称量词命题并不含有全称量词,这时我们就要根据命题涉及的意义去判断.[针对训练]1.用全称量词或存在量词表示下列语句(1)不等式x 2+x +1>0恒成立;(2)当x 为有理数时,13x 2+12x +1也是有理数; (3)方程3x -2y =10有整数解;(4)若一个四边形是菱形,则这个四边形的对角线互相垂直.题型二判断全称量词命题的真【典例2】判断下列全称量词命题的真假.(1)任意实数的平方均为正数.(2)函数y=kx+b为一次函数.(3)同弧所对的圆周角相等.(4)∀x∈R,x2+3≥3.[规律方法]判断全称量词命题真假的方法要判定一个全称量词命题为真命题,需要进行推理证明,或用前面已经学过的定义、定理作证明,而要判断其为假命题,只需举出一个反例即可.[针对训练]2.判断下列全称量词命题的真假.(1)对每一个无理数x,x2也是无理数.(2)末位是零的整数,可以被5整除.(3)∀x∈R,有|x+1|>1.题型三存在量词命题真假的判断【典例3】判断下列存在量词命题的真假.(1)有的集合中不含有任何元素.(2)存在对角线不互相垂直的菱形.(3)∃x∈R,满足3x2+2>0.(4)有些整数只有两个正因数.[规律方法]判断存在量词命题真假的方法判断存在量词命题“∃x∈M,p(x)”的真假性的关键是探究集合M中x的存在性.若找到一个元素x∈M,使p(x)成立,则该命题是真命题;若不存在x∈M,使p(x)成立,则该命题是假命题.[针对训练]3.判断下列存在量词命题的真假.(1)有些二次方程只有一个实根.(2)某些平行四边形是菱形.(3)存在实数x1、x2,当x1<x2时,有x21>x22.题型四含有量词的命题的应用【典例4】已知命题“∀1≤x≤2,x2-m≥0”为真命题,求实数m的取值范围.[变式]若把本例中的“∀”改为“∃”,其他条件不变,求实数m的取值范围.[规律方法]求参数范围的2类题型(1)全称量词命题的常见题型是“恒成立”问题,全称量词命题为真时,意味着命题对应的集合中的每一个元素都具有某种性质,所以利用代入可以体现集合中相应元素的具体性质;也可以根据函数等数学知识来解决.(2)存在量词命题的常见题型是以适合某种条件的结论“存在”“不存在”“是否存在”等语句表述.解答这类问题,一般要先对结论作出肯定存在的假设,然后从肯定的假设出发,结合已知条件进行推理证明,若推出合理的结论,则存在性随之解决;若导致矛盾,则否定了假设.[针对训练]4.是否存在实数m,使不等式m+x2-2x+5>0对于任意x∈R恒成立,并说明理由.5.若存在一个实数x,使不等式m-x2-2x+5>0成立,求实数m的取值范围.【课堂小结】1.判断全称量词命题的关键:一是先判断是不是命题;二是看是否含有全称量词.2.判定全称量词命题的真假的方法:定义法:对给定的集合的每一个元素x,p(x)都为真;代入法:在给定的集合内找出一个x,使p(x)为假,则全称量词命题为假.3.判定存在量词命题真假的方法:代入法,在给定的集合中找到一个元素x,使命题p(x)为真,否则命题为假.【随堂巩固】1.下列命题中,不是全称量词命题的是()A.任何一个实数乘0都等于0B.自然数都是正整数C.对于任意x∈Z,2x+1是奇数D.一定存在没有最大值的二次函数2.下列命题中,存在量词命题的个数是()①有些自然数是偶数;②正方形是菱形;③能被6整除的数也能被3整除;④任意x∈R,y ∈R,都有x2+|y|>0.A.0 B.1C.2 D.3A.有一个x∈R,使得x2>3B.对有些x∈R,使得x2>3C.任选一个x∈R,使得x2>3D.至少有一个x∈R,使得x2>34.对任意x>8,x>a恒成立,则实数a的取值范围是________.5.判断下列命题是全称量词命题还是存在量词命题?并判断其真假.(1)∃x∈R,|x|+2≤0;(2)存在一个实数,使等式x2+x+8=0成立;(3)在平面直角坐标系中,任意有序实数对(x,y)都对应一点.【参考答案】【要点梳理】1.全称量词与全称量词命题∀ 全称量词 ∀x ∈M ,p (x )2.存在量词与存在量词命题∃ 存在量词 ∃x ∈M ,p (x )【思考诊断】1.【答案】x >2不是命题,不能判断真假,而对任意的x ∈R ,x >2则是命题2.【答案】命题“正方形是特殊的菱形”,该命题中没有全称量词,即全称量词命题不一定含有全称量词3.【答案】(1)× (2)× (3)√ (4)√【课堂探究】题型一 全称量词命题与存在量词命题【典例1】[解] (1)可以改为所有的凸多边形的内角和等于360°,故为全称量词命题.(2)含有存在量词“有的”,故是存在量词命题.(3)可以改为所有矩形的对角线不相等,故为全称量词命题.(4)含有量词“存在”,是存在量词命题.[针对训练]1.[解] (1)对任意实数x ,不等式x 2+x +1>0成立.(2)对任意有理数x ,13x 2+12x +1是有理数. (3)存在一对整数x ,y ,使3x -2y =10成立.(4)若一个四边形是菱形,则所有这样菱形的对角线互相垂直.题型二 判断全称量词命题的真【典例2】[解] (1)假命题.若这个实数为0,则其平方为0,不是正数.所以“任意实数的平方均为正数”为假命题.(2)假命题.当k =0时,y =kx +b 不是一次函数,为常函数.所以“函数y =kx +b 为一次函数”是假命题.(3)真命题.根据圆周角的性质可知其为真命题.(4)真命题.∀x∈R,x2≥0,故有x2+3≥3成立.[针对训练]2.[解](1)因为2是无理数,但(2)2=2是有理数,所以全称量词命题“对每一个无理数x,x2也是无理数”是假命题.(2)因为每一个末位是零的整数,都能被5整除,所以全称量词命题“末位是零的整数,可以被5整除”是真命题.(3)当x=0时,不满足|x+1|>1,所以“∀x∈R,有|x+1|>1”为假命题.题型三存在量词命题真假的判断【典例3】[解](1)由于空集中不含有任何元素.因此“有的集合中不含有任何元素”为真命题.(2)由于所有菱形的对角线都互相垂直.所以不存在对角线不垂直的菱形.因此存在量词命题“存在对角线不互相垂直的菱形”为假命题.(3)∀x∈R,有3x2+2>0,因此存在量词命题“∃x∈R,3x2+2>0”是假命题.(4)由于存在整数3只有正因数1和3.所以存在量词命题“有些整数只有两个正因数”为真命题.[针对训练]3.[解](1)由于存在二次方程x2-4x+4=0只有一个实根,所以存在量词命题“有些二次方程只有一个实根”是真命题.(2)由于存在邻边相等的平行四边形是菱形,所以存在量词命题“某些平行四边形是菱形”是真命题.(3)当x1=-2,x2=1时有x21>x22,故“存在实数x1、x2,当x1<x2时,有x21>x22”为真命题.题型四含有量词的命题的应用【典例4】[解]∵“∀1≤x≤2,x2-m≥0”成立,∴x2-m≥0对1≤x≤2恒成立.又y=x2在1≤x≤2上y随x增大而增大,∴y=x2-m的最小值为1-m.∴1-m≥0.解得m≤1.∴实数m的取值范围是{m|m≤1}.[变式][解]∵“∃1≤x≤2,x2-m≥0”成立,∴x2-m≥0在1≤x≤2有解.又函数y=x2在1≤x≤2上单调递增,∴函数y=x2在1≤x≤2上的最大值为22=4.∴4-m≥0,即m≤4.∴实数m的取值范围是{m|m≤4}.[针对训练]4.[解]不等式m+x2-2x+5>0可化为m>-x2+2x-5=-(x-1)2-4.要使m>-(x-1)2-4对于任意x∈R恒成立,只需m>-4即可.故存在实数m使不等式m+x2-2x+5>0对于任意x∈R恒成立,此时需m>-4. 5.[解]不等式m-(x2-2x+5)>0可化为m>x2-2x+5.令t=x2-2x+5,若存在一个实数x使不等式m>x2-2x+5成立,只需m>t min.又t=(x-1)2+4,∴t min=4,∴m>4.所以所求实数m的取值范围是{m|m>4}.【随堂巩固】1.【解析】D选项是存在量词命题.【答案】D2.【解析】命题①含有存在量词;命题②可以叙述为“所有的正方形都是菱形”,故为全称量词命题;命题③可以叙述为“一切能被6整除的数也能被3整除”,是全称量词命题;命题④是全称量词命题.故有1个存在量词命题.【答案】B3.【解析】“∀x∈R,x2>3”是全称量词命题,改写时应使用全称量词.【答案】C4.【解析】∵对于任意x>8,x>a恒成立,∴大于8的数恒大于a,∴a≤8.【答案】a≤85.[解](1)存在量词命题.∵∀x∈R,|x|≥0,∴|x|+2≥2,不存在x∈R,使|x|+2≤0.故命题为假命题.(2)存在量词命题.∵x 2+x +8=⎝⎛⎭⎫x +122+314>0,∴命题为假命题. (3)在平面直角坐标系中,任意有序实数对(x ,y )与平面直角坐标系中的点是一一对应的, 所以该命题是真命题.。
人教新目标英语九年级Unit7复习学案(含答案)
秋季初三英语讲义一、本堂内容【知识点一】动词及短语1. pierce (v.) ____________ 【短语】get/ have my ears pierced ____________【翻译】青少年不应该打耳洞。
Teenagers shouldn’t be allowed ______________________________________________.【复习巩固】allow的用法(1)allow sb. ______________ sth. →(被动语态)be allowed ____________ sth.(2)allow ____________ sth.【例题1】--They don’t allow __________ in the room. –Yes, but we are allowed ___________ outside it.A. smoking, smokingB. smoking, to smokeC. to smoke, smokingD. to smoke, to smoke 【例题2】–Don’t smoke here, Dad. Smoking ____________ (not allow)in public places.–Oh, sorry. I’ll stop right now.2. smoke (v./ n.) ____________ 【短语】give up smoking ____________3. cry (v./ n.) ____________ →(现在分词)____________【短语】cry for help ____________ = need help badly4. regret (v./ n.) ____________ →(过去式/过去分词)____________【用法1】regret _______________sth.后悔做某事【用法2】regret _______________sth.遗憾要去做某事【例题1】–Did you talk back to your mother when you were a child?--Yes, but now I realize I was wrong. I really regret ___________ that silly thing to her.A. doB. to doC. doingD. did【例题2】I regretted not __________________(listen)to mum.【拓展复习】try to do ____________ remember/ forget to do____________ stop to do____________try doing ____________ remember/ forget doing ____________ stop doing ____________5. support (v./ n.) ____________6. educate (v.) ____________ →(n.) 教育者____________ →(n.) 教育____________【用法】educate sb. ____________ sth.【例题1】Children should _____________ to be honest from a young age.A. educateB. be educatedC. punishD. be punished【例题2】We ____________________(educate)at school not only knowledge but also how to behave politely.7. enter (v.) ____________ →entrance(n.)____________ →(反义词)exit (n.)____________【同义短语】____________8. manage (v.) ____________ →(n.) 管理者____________ →(n.)管理____________【用法】manage _____________ sth. 设法做成某事9. hug (v.) ____________ →(过去式/过去分词)____________/(n.) ____________ 【短语】give sb. a hug ____________10. lift (v.) ____________ 【短语】lift sb. up ____________/ (n.) ____________ 【短语】give sb. a lift ____________【翻译】When I fell and hurt myself, she gave me a hug and lifted me up.11. talk back____________ keep away from ____________ make one’s own decision____________12. end up____________ get in the way of ____________ have/ get sth. done____________【课堂练习】I.用所给词的适当形式填空。
沛县四中七年级地理下册 7.1 日本学案1无答案新人教版
第七章第一节日本(第一课时)【学习目标】1、探究日本的位置和范围,知道日本主要自然地理特征及自然资源;2、初步掌握学习国家地理的方法,提高学生运用地图的能力和地理学习能力;一、目标认定,自主学习1、读14页课文及图7.1、7.2合作完成1、日本的领土主要分布在的东面,的西北。
主要由、、、等个大岛、及其周围的海域组成。
是一个的国家,海岸线,多优良。
2、在图7.2中找出日本的主要城市是日本的首都,还有、、、、。
3、掌握这四大岛的相关位置,再从图中火山的符号是座活火山,200多年前还曾喷发过,它被日本奉为“圣岳”,是日本的,也是日本著名的旅游胜地。
由此可以看出日本是一个多和的国家。
二、合作探究、共同提高(小组内解决不了的由老师解答)1、读图7.2日本的地形以_________、________为主,________面积狭小,且集中在沿海地区,日本最大的平原是____________,日本的__________资源也非常丰富,日本的森林覆盖率世界_________,日本海岸线__________,多_____________,这对日本发展_____________经济十分有利。
2、(查阅相关资料)日本的气候类型和气候特征:日本位于中纬度大陆东岸,拥有_____带和__________带__________气候。
读表:东京和北京一月和七月气温和降水量冬季,东京比北京__________(冷还是暖),夏季呢?降水量,东京比北京__________(多还是少)。
这说明日本的季风气候具有______特征,与亚洲大陆同纬度相比,冬季______,夏季_______,降水______。
3、[探究题活动]:读图7.3-7.9分析完成,(1)、日本在板块和的交界处。
(2)、日本多火山。
火山能给人类带来灾难请举例,但是在火山非活动时间,能够利用火山为人类造福吗?。
3、日本经常有发生,每年有震感地震多达多次。
人们采取很多办法来预防地震,或者减小地震带来的危害。
学案1:第7课 《官场现形记》——兄弟阋墙
《官场现形记》——兄弟阋墙[知识·梳理]第1步读字音——千言万语总关音一、单音字兄弟阋.墙(xì) 弥.补(mí) 绺.着胡子(liǔ) 踱.步(duó) 新畲.(shē) 徇.私舞弊(xùn) 孽.障(niè) 搭讪.(shàn) 二、多音字1.词组辨析法(1)拓⎩⎪⎨⎪⎧ tuò落拓.tà拓.片 (2)中⎩⎪⎨⎪⎧ zhōnɡ不中.听zhònɡ相中. (3)埋⎩⎪⎨⎪⎧ mán 埋.怨mái 埋.没 (4)荷⎩⎪⎨⎪⎧ hé荷.包hè荷.枪实弹2.语境辨析法(5)他得了冠.(ɡuàn)军后就有点冠.(ɡuān)冕堂皇了。
(6)穿着干.(ɡān)净的衣服干.(ɡàn)脏活,真有点不协调。
(7)矿下的巷.(hànɡ)道与北京四合院的小巷.(xiànɡ)有点相似。
第2步写字形——奥妙无穷方块字(1)⎩⎪⎨⎪⎧ niè蘖枝niè孽障 (2)⎩⎪⎨⎪⎧ 豁lánɡ琅一声lánɡ锒铛 (3)⎩⎪⎨⎪⎧ 算zhànɡ账chànɡ怅惘zhànɡ帐篷 (4)⎩⎪⎨⎪⎧ 排xuān 揎xuàn 渲染xuān 宣泄 第3步用词语——送你一双慧眼(1)清静·清净 “清静”,环境安静;不嘈杂。
“清净”,没有事物打扰,如“耳根清净”;清澈,如湖水清净见底。
请将正确的词语填在横线上。
全球最大社交网站“脸谱”的创始人马克·扎克伯格为了保护社区的清静(清静/清净)和自己的隐私,竟然豪掷超过3000万美元,抢在房地产开发商之前买下了邻近的4栋住宅。
(2)搭讪·寒暄“搭讪”,为了跟人接近或把尴尬的局面敷衍过去而找话说。
“寒暄”,见面时谈天气冷暖之类的应酬话。
Module7语法学案 英语八年级上册
M7语法学案——过去进行时(1)一.语法梳理。
我们已经学习了四种基本时态,一般情况下“昨天晚上我在看电视”用时态那么我们表达“昨天晚上8点我在看电视”“当时我在操场上打篮球”这样情况用时态。
例句: ---- What were you doing at 7 am yesterday?昨天早上7点你在做什么?-----I was having breakfast.我在吃早餐。
一般来说,要表示过去或正在进行的动作,我们常使用时。
常和过去进行时连用的时间状语有:then,at this/that time yesterday,st night等, 过去进行时除了表示“”之外,还常常出现在的语境中,请看本模块的句子: Alice was sitting with her sister by the rive..爱丽丝正和姐姐坐在河边It was siting in a tree and smiling at everyone.它(那只猫)正坐在树上,朝着大家微笑。
They were having a tea party in the garden.他们正在花园里举行茶会。
过去进行时句子中的谓语部分由“was/were+动词”构成,与现在进行时结构相似,只是现在进行时中的am/is/are变成了。
由此同学们可以推断,过去进行时的句式变化也应该与现在进行时的一样。
句型转换:I was reading a book at that time?否定句:疑问句:肯定回答:否定回答:特殊疑问句(划线部分提问):We were having a party at nine last night.否定句:疑问句:肯定回答:否定回答:特殊疑问句(划线部分提问):You were sleeping then.否定句:疑问句:肯定回答:否定回答:特殊疑问句(划线部分提问):She was sitting with her sister by the river.否定句:疑问句:肯定回答:否定回答:特殊疑问句(划线部分提问):They were playing basketball at 4 pm yesterday.否定句:疑问句:肯定回答:否定回答:特殊疑问句(划线部分提问):过去进行时和一般过去时区分:Laura was reading a novel at eight o'clock last night.昨晚8点劳拉在看小说。
新目标人教版七年级英语上册学案Unit 1 My name is Gina
新目标人教版七年级英语上册学案Unit 1 My name is Gina. 课题:Unit 1 My name is Gina.Period 1Section A 1a-4【学习目标】1. 学习并掌握自我介绍和问候别人。
2. 根据已学音标会拼读生词3. 主要句型和交际用语(1)What’s your/his/her name?My/his/her name is ……(2) Nice to meet you.(3)Hello! I’m M ary.Hi,Mary! I’m Jim.4.注意中英文姓名的差别。
【学习重难点】1.会拼读生词和问姓名的句型。
2.注意中英文姓名的差别。
【学法指导】通过已学音标拼读生词,然后读熟英文姓名。
对于不懂的句型可查阅教辅去理解。
仔细研究3a可找出中英文姓名差异。
【学习过程】一.预习检测l 根据音标会拼读课后生词。
l 写出1a中物品的单词l 预习Page1-3的内容,把下列的汉语译成英语1.你叫什么名字?______________________2.他叫什么名字?______________________3.很高兴见到你。
______________________4.姓________________5.名____________在预习过程中,你感觉最难的有哪些部分?二.课堂互动探究1.How to introduce yourself.(怎样介绍你自己)2.How to greet people.(怎样问候人)三.课堂反馈练习(一).写出你们小组每个人的姓和名(二).从B栏中找出A栏的答语A B1.What’s her name? A.Nick.2.Nice to meet you. B.Hi!I’m Mike.3.What’s his name? C.Linda.4.Hello! I’m Tony. D.Nice to meet you. (三).选词填空1.What’s ____(he,his) name?2.She______(am,is) a driver.3._____(Her,She) is my teacher.4.Mary is_____(her,she) English name.5._____(Am,Is) your mother a worker.Period 2SectionB 1a-4【学习目标】4. 学习并掌握数字的表达。
七年级科学上册《科学在我们身边》学案1 浙教版
课题1科学就在我们身边1 知识题练知识点1 科学在我们身边例 1 下列有关说法中正确的是()A.科学研究是科学家的工作,和我们无关B.科学研究是高深而神秘的,可望而不可及C.科学研究是很复杂的工作,我们没有办法完成D.只要留心观察,从身边的问题着手,我们都可以进入科学世界进行科学研究思路导引:总体感知,科学就在我们身边,科学研究并不神秘,关键在于你是否善于观察和思考。
解析:科学研究其实是一项平凡而又充满创造性的工作,对每一个人来说,只要留心观察,做生活的有心人,都可以进入科学的世界。
答案:D题练 1 发明蒸气机的科学家是()A.牛顿B.瓦特C.伽利略D.爱迪生题练 2 鱼能在不同的水层中上下游动,是因为其体内又一个,它的体积变,鱼就可以上浮,若要下沉,则体积变。
知识点2 科学技术改变了我们的生活例 2 下列关于科学的说法不正确的是( )A.科学是对人类有用的,它能推进人类文明进步B.科学对人类有用,没有任何不利之处C.科学技术是第一生产力D.我们要学好科学,为人类社会服务思路导引:从辨正的角度看,任何事物都是存在正反两方面因素的。
我们看问题要全面客观,既要看到科学带给人类的巨大推动力,也要看到科学的负面效应。
解析:科学发展推动人类文明的进步,但也给人类带来了负面影响,如汽车的发明一方面带来了交通工具的重大革新,另一方面也造成了环境的污染。
答案:B题练3 2005年10月12日,“神舟”六号宇宙飞船发射升空,它载着、两名宇航员,进行了时间长达119小时的太空飞行。
宇航员在太空舱中可以直接对话,但如果在飞船外作业,他们之间就不能直接对话,必须借助电子通信设备进行交流。
你认为产生这种区别的原因是()A. 用通信设备对话是为了方便B. 太空中没有空气,声音不能传播C. 太空中噪声太大D. 声音只能在地面上传输题练 4 请举例说明科学技术的发展给人来带来的负面影响。
方法题练题型1 考查对科学史的了解程度例 3 发动天文学领域革命,创立“日心说”理论的科学家是( )A.拖勒密B.哥白尼C.哈勃D.多普勒思路导引:明确各位科学家在科学史上的成果。
2018-2019年英语湘少版小学六年级上册Unit 7 What can I do 优质学案第1课时
Unit 7 《What can I do?》学案第一课时一、教学目标1.能听懂、会说、会读、会写新单词和短语an old woman,help the old people on the road,make tea,make cakes,clean their homes,make them happy,weak,slow。
2.能用“What can I do?”和“I can…”提供帮助。
二、学习过程(一)课前准备。
1.复习旧知识,连线题。
下棋 dance唱歌 play chess玩游戏 sweep the floor跳舞 clean the window扫地板 sing擦窗户 play games(二)自主交流。
1.预习单词并在课文中找出下列新单词,写好中文意思,并试读单词。
weak ________ slow___________ coffee__________2.翻译短语。
an old woman________________ help the old people on the road______________make tea____________________ make cakes______________________________clean their homes_____________ make them happy _________________________3.阅读课文A部分,回答问题。
(1)What can they do for the old man?Jane_____________________Lingling_________________________Mingming________________Anne_____________________________Peter_____________________4.听A部分录音,纠正自己的发音。
高二英语选修7学案:例句精讲Unit1 Livingwell含解析
例句精讲Warming Up1。
Does their disability make it difficult for them to do some things?残疾使他们做某些事情有困难吗?【巧解句构】句中it是形式宾语,真正的宾语是不定式复合结构for them to do some things。
【要点剖析】常用句型是make + it + adj。
/n。
+ for sb.+ to do。
.。
除了make外,think,feel,find,consider 也可以用于这类句型。
【联想发散】当主语、宾语是不定式,并且单词较多时,为了使得整个句子结构平衡,常常用it作形式主语、宾语,把真正的主语、宾语放在句末。
2。
She was proud to have recently represented her country in an athletics competition where she won a gold medal in the 50meter race。
最近她代表国家参加了一项田径比赛,并荣获50米赛跑的金牌,对此她感到很自豪。
【巧解句构】这是一个主从复合句,She was proud to have recently represented her country in an athletics competition是主句,where she won a gold medal in the 50—meter race是一个定语从句修饰competition。
【拓展延伸】不定式的一般式,表示将要发生的动作或规律性的动作,主动形式是to do,其被动形式是to be done。
在主句中to have recently represented是不定式的完成式,表示不定式的动作发生在谓语动作之前。
3。
She has her own website on the Internet which her boyfriend helped herset up.在网上她有自己的网站,是她男朋友帮她建立的。
七年级数学上册学案1
七年级数学上册学案生活中的立体图形一、自学导引指出下列几何体的名称,你能否将下列几何体进行分类?并请说出分类的依据。
点拨:⑴可按柱、锥、球划分,也可按组成面的曲或平划分;⑵要确定分类标准,并做到不重不漏二.新授1.1.上图中有哪些物体的形状与长方体、正方体类似?2.上图中哪些物体的形状与圆柱、圆锥类似?描述圆柱与圆锥的相同点与不同点。
3.请找出上图中与笔筒形状类似的物体。
4.请找出上图中与地球形状类似的物体。
5.对常见几何体的分类标准可按围成的面是否含有曲面可分为两类;按外观分分为柱,锥,球三类。
6.什么叫棱、侧棱?7.n棱柱有个顶点,个面,条棱,条侧棱。
三.用自己的语言描述棱柱与圆柱的相同点与不同点。
四.随堂练习1.(1)正方体是由_____个面围成的;圆柱是由______个面围成的;它们都是平的吗?(2)圆柱的侧面和底面相交成_____条线?它们是直的还是曲的?(3)正方体有______个顶点?经过每个顶点有______条边?2.下列图形不是立体图形的是()A.球B.圆柱C.圆锥D.圆3.正方体有_____个顶点,经过每个顶点有_________条棱,这些棱都____________.4.一个六棱柱共有条棱,如果六棱柱的底面边长都是2cm,侧棱长都是4cm,那么它所有棱长的和是cm.5.正方体或长方体是一个立体图形,它是由______个面,______条棱,_____个顶点组成的.6.一个棱柱有十个顶点,且所有侧棱的和为30cm,则每条侧棱长为cm.7.下面这些基本图形和你很熟悉,试一试在括号里写出它们的名称.( ) ( ) ( ) ( ) ( )五.新授21.想象下列平面图形绕轴旋转一周,可以得到哪些立体图形?(1)(2)(3)(4)(5) a b c d e总结1:点动成,线动成,动成体。
2.你能举出更多反映“点动成线,线动成面,面动成体”的例子吗?3.圆柱可以看作由下列哪个图形沿它的一边快速旋转得到()A.直角三角形 B.梯形 C.长方形 D.等腰三角形4.假如我们把笔尖看作一个点,当笔尖在纸上移动时,就能画出线,说明了______________,时钟秒针旋转时,形成一个圆面,这说明了_______________,三角板绕它的一条直角边旋转一周,形成一个圆锥体,这说明了___________________.总结2:图形是由点、线、面构成的;面与面相交得到线,线与线相交得到点.生活中的立体图形检测题一.选择题1.将下面的直角梯形绕直线l 旋转一周,可以得到右边立体图形的是( )2.观察下图,请把左边的图形绕着给定的直线旋转一周后可能形成的几何体选出来3.图1-2绕虚线旋转一周形成的图形是( )4.下列几种图形:①三角形;②长方形;③正方体;④圆;⑤圆锥;⑥圆柱。
七年级数学上册相反数学案1北师大版
相反数(预习显现课)组别:第组号 姓名:学习目标: 1.知道数轴上两点对于原点对称的见解,并会找一点对于原点的对称点.2.记着相反 数的见解. 3 .会求一个数的相反数.一、学一学:A C DE F B1 . 如图 1 数轴上的点A 所对应的数是,-4 -3 -2 -10 1 2 3 45点 A 到原点的距离是.点 B 所对1 图应的数是,点 B 到原点的距离是 .点 A 与点 B 可否对于原点对称?A答:.再说出两对对于原点对称的-4 -3 -2-11 2 3 4 5点 和 , 和 ,他们所对应的数分别是和 ,和。
图 22 .如图2 数轴上点 A 对应的数是,点 A 对于原点的对称点所对应的数是.数轴上点 E 、 F 对于原点对称,若点 E 对应 的数是 ,则点 F 所对应的数是,若点 F 对应的数是0.5 ,则点 E 所对应的数是, 若点 E 对应的数是 0,则点 F 所对应的数是.概括总结:设 a 是一个正数,数轴上与原点距离是a 的点有 两个,分别在原点左右表示 -a 和 a ,我们说这两点 对于原点对称 。
像 4 和 4 、和2.5 、和、和,它们 只有符号不同样,则这样的数叫做互为相反数,0的相反数是0.请你再举几个例子:例如.二、练一练:(1) 0 的相反数是 . 3 的相反数是,6 的相反数是,的相反数是.1的的相反数是, 的相反数是,数 a 的相反数是.-5即求一个数的相反数就是在这个数前面加上一个“-” ,新的数就表示原数的相反数.如:求 6 的相反数,即 6 的相反数是6 ,也就是 (6) 6.(2)求 2.的相反数,即3(3)求b 的相反数,即.(4) m 的相反数是 ; -a 的相反数是; m+3的相反数是.三、议一议:(--7)-01. (-+7)的相反数; 的相反数; 是 的相反数 .是 是2. 若是 a=-a ,那么表示数 a 的点在数轴上的什么地点?a=.3. 互为相反数的两个数在数轴上所对应的点拥有怎样的关系?答.4. 一 个数的相反数大于它自己, 那么 , 这个数是.一个数的相反数等于它自己,这个数是,一个数的相反数小于它自己, 这个数是.四、知识商场:1.- 2 的相反数是,0.5 的相反数是, 0 的相反数是。
保定17中 典范英语7学案
Book 1 Walrus joins inⅠ. Pre-reading(预习要求)1.Read after the recording and write down your favourite sentences( 5 sentences).一读:跟录音朗读,摘抄5个喜欢的好句子。
2.Read and find out the sentences what the animals would do for the show?二读:跟录音朗读,摘抄含有描写动物将要表演的节目的句子。
3.Copy the sentences that express “actions ” during the performance .三读:摘抄含有在表演中关于动作描写的句子。
Post-reading(读后练习)Ⅱ. Read the story and answer the following questions:1.What was Walrus good at ?2.Why couldn’t Walrus stop himself when fox acted?3.How did fox feel when Walrus joined in him?4.What did Whale say after the show?5.What part did Walrus play in the last show?6.As the story goes, which part makes you feel most excited? What happens in that part?7. What can you learn from the story?Ⅲ. Fill in the blanks with the words in the brackets:1.Everyone at the north Pole was very__________.2.They sat down and _______the show to begin.3.He just had to _________ the ice and join in with fox.4.Seal stopped singing and _________ floods of tears.5.You can be the clown. ______________ you do it properly.Ⅳ. Writing. Writing a summary according to the following questions. Why was everyone at the North Pole very excited?Why did Walrus feel sad?What did Walrus do during the show?How did the actors feel?What did the audience think of the show?What did Walrus do from then on?Ⅴ.拼读训练(Phonics Practising):Book 2 Noisy NeighboursⅠ. Pre-reading(预习要求)1.Read after the recording and write down your favourite sentences( 3 sentences).一读:跟录音朗读,摘抄3个喜欢的好句子。
部编人教版小学语文四年级上册:7.呼风唤雨的世纪(学案1)-人教新课标
部编人教版小学语文四年级上册:7.呼风唤雨的世纪(学案1)-人教新课标学习目标:1、认识5个生字,能正确朗读16个词语。
2、能有感情地朗读课文,理解课文中含义深刻的句子。
3、在自主合作探究中,感受课文中科学技术创造的奇迹及威力,拓宽自已的思维空间,培养创造性思维等多种能力。
4、理解“发明”和“发现”的区别,感受课文用词准确的特点。
学习重、难点:1、理解“发明”和“发现”的区别,感受课文用词准确的特点。
2、理解文题“呼风唤雨的世纪”的含义。
学法指导:读中感、读中悟、小组讨论,合作探究。
学习准备:课件、给学生发放导学案课时安排:2课时第一课时学习过程:学案自学:3、“呼风唤雨”和“世纪”的意思是什么呢?我要立即行动,用我知道的办法(借助工具书和课文内容或其它),来试着理解。
呼风唤雨:世纪:4、拼音生字对对碰:()()()()()赖耕潜舶哲5、我是辨字组词小明星潜()驾()幻()核()改()腔()替()架()幼()该()放()控()小组合作:1、有感情地朗读课文。
2、课文一共有()个自然段,其中第()自然段为重点内容。
3、默读1、2自然段,在文中划出重要的词语。
4、是什么改变了人们的生活?先写下来再与组员交换一下看法。
我们的看法()A、完全一样B、基本一样C、大部分一样D、不一样5、搜寻生活空间。
(1)我知道生活中哪些是“发现”(2)我知道生活中哪些是“发明”班级展示:展示学习成果1、有感情朗读课文。
2、课文一共有()个自然段,其中第()自然段为重点内容。
3、默读1、2自然段,在文中划出重要的词语。
4、是什么改变了人们的生活?先写下来再与组员交换一下看法。
我们的看法()A、完全一样B、基本一样C、大部分一样D、不一样5、搜寻生活空间。
(1)我知道生活中哪些是“发现”(2)我知道生活中哪些是“发明”6、动笔画画:划出描写人类在上百万年的历史中的生活状态和20世纪人类科学技术发展成就的语句。
用心想想:课文用了什么方法向我们介绍了20世纪人类科学技术成就的?用这样的方法写有什么好处?质疑探究:学习至此,你还有不懂得为题吗?和大家一起讨论。
第7课课时1学案
第7课;法律保护我们的权利课时一:法律规定公民的权利和义务教师寄语:智者的梦再美,也不如愚人实干的脚印。
学习目标:情感态度价值观:尊重法律,尊重权利,增强权利义务观念,依法正确行使权利,认真履行公民义务,不做违反法律的事情。
能力:能够正确理解法律规范的特殊性,公民权利和义务的一致性,提高依法行使权利,自觉履行义务的能力。
知识:知道法律的含义,了解我国法律规定的公民权利和义务,理解权利和义务的关系。
学习重点1、我国公民的权利和义务是一致的。
2、法律是特殊的行为规范。
学习难点1、法律是特殊的行为规范。
2、依法行使权利、自觉履行义务。
教学过程:一、预习导学(根据预习提纲,在书中标注相关问题及层次并填空)(一)法律是特殊的行为规范1、法律是由国家,靠保证实施,对全体社会成员的一种行为规范。
法律最主要的特征是。
国家强制力是指暴力。
即:等。
法律对全体社会成员具有普遍约束力的主要表现P84①②2、法律规范与道德规范的关系联系(相同点):区别:①从形成方式来看:②从起作用的手段来看:3、法律的本质、我国社会主义法律的本质(二)我国公民的权利和义务1、我国宪法和法律对公民权利和义务的规定:①我国宪法规定的公民的基本权利和义务:②我国其他法律规定的公民的权利和义务:2、【相关链接】什么是权利?什么是义务?公民基本权利与义务与其他一切权利和义务的关系?◆我国公民的权利和义务是一致的(1)公民的权利和义务是的。
【怎样理解?】(2)公民的某些权利和义务是的。
在某些条件下,权利就是义务,义务就是权利。
(3)公民的权利和义务是的。
【为什么?】◆依法行使权利自觉履行义务1、依法正确行使权利⑴公民享有宪法和法律赋予的权利,但权利的行使必须遵守宪法和法律的规定。
公民在行使自己权利的时候,不得,不得,不能。
超越法律规定和许可的范围。
⑵公民的合法权利受到侵害,有权2、自觉履行义务公民履行义务要做到:①凡是②③二、小组长检查预习完成情况(核对答案,评等级,帮扶讲解)三、师生合作探究1、学生阅读P83---84材料,思考:胡长清被判处死刑说明了什么?2、P85下分析黑社会组织的犯罪活动有哪些危害?四、课堂小结,学生巩固,检查提问,查缺补漏)五、典型例题分析【总结规律,提高做题能力】李某用手机发布恐吓信息,导致机场航班延迟起飞,给国家、他人带来严重损灾,最终李某受到法律制裁。
- 1、下载文档前请自行甄别文档内容的完整性,平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益,请联系客服反馈,我们会尽快为您处理(人工客服工作时间:9:00-18:30)。
3、了解大熊猫的外形、习性等特点,培养学生喜欢小动物的情感。
重点
难点
1、认识本课生字和新偏旁。
2、朗读课文,背诵喜欢段落。
环节
导学流程
一、引导学
二、学习本课教学目标。
三、读课文。
(一)、组学
1、会认字
Yáng tái sītíng shēn shīyǔqiāo gānàlián lāzhǐpāi cháo
阳台丝停身湿羽悄干啊连拉指拍朝
2、会写字
Gān yīshēn yáng mātái yào guò
______ _____ ______ ______ ______ _______ ____
3、重点词语
晾干衣服身上阳台妈妈过来
4、写出带“讠、“人字头”偏旁的字,比一比谁写得多。
――――――――――――――――――――――――――――――――――
例:双朋()()()()
3、连一连美丽的小鸟悄悄的叫
尖尖的小嘴欢快地看
可爱的羽毛轻轻地说
4、想一想,写一写。
例:游来游去
_____来____去_____来____去_____来____去
例:又吵又闹
又___又____又___又____又___又____
四、检查学案。
教学反思:
学习
目标
1、认识本课的14个生字,会写8个生字.,认识2个新偏旁。
语文导学案年级:一年级主备人:袁凤丽王伟玲审批人:刘涛
课题
7、大熊猫
课型
自学展示吓干
Yāo()hè()gàn()
6、近义词
美丽——忽然——连忙——欢快——
7、反义词
阳——外——
(二)、拓展延伸
1、照样子组字,再组词。
日(阳)(阳光)马()()西()()
2、观察下面两个字的特点,照样子写一写,比比谁写得多。