1. We'll need ten months at least to have the restaurant decorated.2.Some traditional Chinese dishes from before the Ming Dynasty are still popular today.3.My grandpa's breakfast mainly includes whole grain biscuits and a glass of milk.4.People in this area would eat nearly a kilo of cheese per week.5. We enjoyed a special dinner in a fancy restaurant where the waiters all wore attractive suits.6. He prefers this brand of coffee which, as he said, has an unusually good flavor.Key:1. at a minimum 2. prior to3. consist of4. consume5. elegant6. exceptionalStep 5:Familiarize yourself with some food idioms by matching the meaning on the right with the colored words on the left.1.Public concern for the health of farm animals has mushroomed in the UK2.Anderson may be young but he's certainly rolling to doing dough!3.George is a popular lecturer. He often peppers his speech with jokes.4.As the person to bring home the bacon, he needs to find a stable job.5 He is often regarded as a ham actor for his over emphasized facial expressions. The media reported that these companies had treated pollution as a hot potato. 6.The media reported that these companies had treated pollution as a hot potato.7.Don't worry about the test tomorrow. It's going to be a piece of cake!8. It's best to fold the swimming ring when it is as flat as a pancake.A. completely flatB. something that is very easy to do C.an issue that is hard to deal withD.to include large numbers of somethingE.to earn on e's living to support a familyF. wealthyG.to rapidly increase in numberH. an actor who performs badly, especially by over emphasizing emotions
The activity theme of this section is to design various activities around the key words in the first text. Therefore, the activities require students to pay attention to the spelling of words. On the other hand, let students grasp the meaning of words more accurately through sentences and short texts. This kind of teaching design also helps to improve the ability of using English thinking.1. Cultivating students' ability to use word formation to induce and memorize vocabulary, and the ability to use lexical chunks to express meaning.2. Guide the students to think independently and use the correct form of words to complete sentences3. Cultivate students' habit of using lexical chunks to express language completely, guide students to draw words in sentences quickly, pay attention to word collocation, so as to accumulate more authentic expressions4. Instruct students to create sentences with the chunks.1. Enable students to use the language points in the real situation or specific contexts flexibly and appropriately.2. Guiding the Ss to use unit topic words and the sentence patterns in a richer context.Step1: Think of a word that best fits each definition.1. to remember sth2.to accept, admit, or recognize sth or the truth/existence of sth3. the process of changing sth or yourself to suit a new situation4 .to make sb feel less worried or unhappy5. a strong desire to achieve sth
你校英语报计划出版一期急救常识专刊,现面向全校学生公开征集稿件,你有意参加。请你根据下面提示内容,用英语写一篇短文,介绍在车祸现场对伤者进行急救的方法和步骤。1.确保现场的安全;2.询问伤者,确保其呼吸正常;3.检查伤口,如流血则应采取止血措施;4.如需急救,确保其处于康复位置。注意:1.词数80左右;2.可以适当增加细节,以使行文连贯。参考词汇:康复位置 recovery positionAs we all know, having a knowledge of first aid can make a great difference in our daily life. If a traffic accident happens and someone is injured, the following steps can be used to treat the injured.In the first place, we should make sure that the accident scene is safe so that we won’t get hurt. We should ask the injured person if he is OK, and see if he is breathing. What’s more, we should check for cuts and wounds. If he is bleeding badly, it is vital that we should try to stop the bleeding by applying pressure to the injury. This is because if a person loses too much blood, he may die. If necessary, take the injured person to the hospital as soon as possible.Do remember: when giving first aid, please be sure to place the person in a recovery position.
The theme of this part is to write an article about healthy diet. Through reading and writing activities, students can accumulate knowledge about healthy diet, deepen their understanding of the theme of healthy diet, and reflect on their own eating habits. This text describes the basic principles of healthy diet. The author uses data analysis, definition, comparison, examples and other methods. It also provides a demonstration of the use of conjunctions, which provides important information reference for students to complete the next collaborative task, writing skills, vivid language materials and expressions.1. Teach Ss to learn and skillfully use the new words learned from the text.2. Develop students’ ability to understand, extract and summarize information.3. Guide students to understand the theme of healthy diet and reflect on their own eating habits.4. To guide students to analyze and understand the reading discourse from the aspects of theme content, writing structure, language expression, etc., 5. Enable Ss to write in combination with relevant topics and opinions, and to talk about their eating habits.1. Guide students to analyze and understand the reading discourse from the aspects of theme content, writing structure, language expression, etc.2. Enable them to write in combination with relevant topics and opinions, and to talk about their eating habits.3. Guide the students to use the cohesive words correctly, strengthen the textual cohesion, and make the expression fluent and the thinking clear.Step1: Warming upbrainstorm some healthy eating habits.1.Eat slowly.2.Don’t eat too much fat or sugar.3.Eat healthy food.4.Have a balanced diet.Step2: Read the passage and then sum up the main idea of each paragraph.
? B: Absolutely! Getting involved with Chinese cultural activities there definitely helped a lot. I got to practice my Chinese on a daily basis, and I could learn how native Chinese speakers spoke.? A: What do you feel is your biggest achievement?? B: Learning Chinese characters! I have learnt about 1,500 so far. When I first started, I didn't think it was even going to be possible to learn so many, but now I find that I can read signs, menus, and even some easy newspaper articles.? A: What are you most keen on?? B: I've really become keen on learning more about the Chinese culture, in particular Chinese calligraphy. As I have learnt Chinese characters, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way. ? A: Finally, what do you want to say to anyone interested in learning Chinese?? I have really become keen on learning more about the Chinese culture, in particular Chinese Calligraphy. As I have learnt Chinese character, I have developed a great appreciation for their meaning. I want to explore Chinese characters by learning how to write them in a more beautiful way.? A: Finally, what do you want to say to anyone interested in learning Chinese?? B: I'd say, give it a shot! While some aspects may be difficult, it is quite rewarding and you will be happy that you tried.? A: Thanks for your time. ? B:You're welcome.
假定你是英国的Jack,打算来中国旅行,请你给你的中国笔友李华写一封信,要点如下:1.你的旅行计划:北京→泰山→杭州;2.征求建议并询问他是否愿意充当你的导游。注意:1.词数80左右(开头和结尾已给出,不计入总词数);2.可以适当增加细节,以使行文连贯。参考词汇:故宫 the Forbidden City;泰山 Mount TaiDear Li Hua,I'm glad to tell you that 'm going to visit China.First,I am planning to visit Beijing,the capitalof China,where I am looking forward to enjoying the Great Wall,the Forbidden City and somebeautiful parks.Then I intend to go to visit Mount Tai in Shandong Province.I've heard that it is one ofthe most famous mountains in China and I can't wait to enjoy the amazing sunrise there.After that,I amalso going to Hangzhou.It is said that it is a beautiful modern city with breathtaking natural sights,among which the West Lake is a well- known tourist attraction.What do you think of my travel plan? Will you act as my guide? Hope to hear from you soon.
The theme of the listening section is " talking about scenery and culture along a journey."The part is designed to further lead the students to understand Canadian natural geography and social environment, and integrated into the cultural contrast by mentioning the long train journey from Beijing to Moscow routes. On this basis, the part activates students related travel experience, lets the student serial dialogue, guides the student to explore further the pleasure and meaning of the long journey, and Chinese and foreign cultural comparison.The part also provides a framework for the continuation of the dialogue, which is designed to provide a framework for students to successfully complete their oral expressions, and to incorporate an important trading strategy to end the dialogue naturally.1. Help students to understand and master some common English idioms in the context, and experience the expression effect of English idioms.2. Guide the students to understand the identity of different people in the listening context, and finish the dialogue according to their own experience.3. Instruct the students to use appropriate language to express surprise and curiosity about space and place in the dialogue, and master the oral strategy of ending the dialogue naturally.1. Instruct students to grasp the key information and important details of the dialogue.2. Instruct students to conduct a similar talk on the relevant topic.
The theme of this section is to learn how to make emergency calls. Students should learn how to make emergency calls not only in China, but also in foreign countries in English, so that they can be prepared for future situations outside the home.The emergency telephone number is a vital hotline, which should be the most clear, rapid and effective communication with the acute operator.This section helps students to understand the emergency calls in some countries and the precautions for making emergency calls. Through the study of this section, students can accumulate common expressions and sentence patterns in this context. 1.Help students accumulate emergency telephone numbers in different countries and learn more about first aid2.Guide the students to understand the contents and instructions of the telephone, grasp the characteristics of the emergency telephone and the requirements of the emergency telephone.3.Guide students to understand the first aid instructions of the operators.4.Enable Ss to make simulated emergency calls with their partners in the language they have learned1. Instruct students to grasp the key information and important details of the dialogue.2. Instruct students to conduct a similar talk on the relevant topic.Step1:Look and discuss:Match the pictures below to the medical emergencies, and then discuss the questions in groups.
The purpose of this section of vocabulary exercises is to consolidate the key words in the first part of the reading text, let the students write the words according to the English definition, and focus on the detection of the meaning and spelling of the new words. The teaching design includes use English definition to explain words, which is conducive to improving students' interest in vocabulary learning, cultivating their sense of English language and thinking in English, and making students willing to use this method to better grasp the meaning of words, expand their vocabulary, and improve their ability of vocabulary application. Besides, the design offers more context including sentences and short passage for students to practice words flexibly.1. Guide students to understand and consolidate the meaning and usage of the vocabulary in the context, 2. Guide the students to use the unit topic vocabulary in a richer context3. Let the students sort out and accumulate the accumulated vocabulary, establishes the semantic connection between the vocabulary,4. Enable students to understand and master the vocabulary more effectivelyGuiding the Ss to use unit topic words and the sentence patterns in a richer context.Step1: Read the passage about chemical burns and fill in the blanks with the correct forms of the words in the box.
6.例二:如图在正方体ABCD-A’B’C’D’中,O’为底面A’B’C’D’的中心,求证:AO’⊥BD 证明:如图,连接B’D’,∵ABCD-A’B’C’D’是正方体∴BB’//DD’,BB’=DD’∴四边形BB’DD’是平行四边形∴B’D’//BD∴直线AO’与B’D’所成角即为直线AO’与BD所成角连接AB’,AD’易证AB’=AD’又O’为底面A’B’C’D’的中心∴O’为B’D’的中点∴AO’⊥B’D’,AO’⊥BD7.例三如图所示,四面体A-BCD中,E,F分别是AB,CD的中点.若BD,AC所成的角为60°,且BD=AC=2.求EF的长度.解:取BC中点O,连接OE,OF,如图。∵E,F分别是AB,CD的中点,∴OE//AC且OE=1/2AC,OF//AC且OF=1/2BD,∴OE与OF所成的锐角就是AC与BD所成的角∵BD,AC所成角为60°,∴∠EOF=60°或120°∵BD=AC=2,∴OE=OF=1当∠EOF=60°时,EF=OE=OF=1,当∠EOF=120°时,取EF的中点M,连接OM,则OM⊥EF,且∠EOM=60°∴EM= ,∴EF=2EM=
(4)“不论m取何实数,方程x2+2x-m=0都有实数根”是全称量词命题,其否定为“存在实数m0,使得方程x2+2x-m0=0没有实数根”,它是真命题.解题技巧:(含有一个量词的命题的否定方法)(1)一般地,写含有一个量词的命题的否定,首先要明确这个命题是全称量词命题还是存在量词命题,并找到其量词的位置及相应结论,然后把命题中的全称量词改成存在量词,存在量词改成全称量词,同时否定结论.(2)对于省略量词的命题,应先挖掘命题中隐含的量词,改写成含量词的完整形式,再依据规则来写出命题的否定.跟踪训练三3.写出下列命题的否定,并判断其真假:(1)p:?x∈R,x2-x+ ≥0;(2)q:所有的正方形都是矩形;(3)r:?x∈R,x2+3x+7≤0;(4)s:至少有一个实数x,使x3+1=0.【答案】见解析【解析】(1) p:?x∈R,x2-x+1/4<0.∵?x∈R,x2-x+1/4=(x"-" 1/2)^2≥0恒成立,∴ p是假命题.
等式性质与不等式性质是高中数学的主要内容之一,在高中数学中占有重要地位,它是刻画现实世界中量与量之间关系的有效数学模型,在现实生活中有着广泛的应,有着重要的实际意义.同时等式性质与不等式性质也为学生以后顺利学习基本不等式起到重要的铺垫.课程目标1. 掌握等式性质与不等式性质以及推论,能够运用其解决简单的问题.2. 进一步掌握作差、作商、综合法等比较法比较实数的大小. 3. 通过教学培养学生合作交流的意识和大胆猜测、乐于探究的良好思维品质。数学学科素养1.数学抽象:不等式的基本性质;2.逻辑推理:不等式的证明;3.数学运算:比较多项式的大小及重要不等式的应用;4.数据分析:多项式的取值范围,许将单项式的范围之一求出,然后相加或相乘.(将减法转化为加法,将除法转化为乘法);5.数学建模:运用类比的思想有等式的基本性质猜测不等式的基本性质。
一、 问题导学前面两节所讨论的变量,如人的身高、树的胸径、树的高度、短跑100m世界纪录和创纪录的时间等,都是数值变量,数值变量的取值为实数.其大小和运算都有实际含义.在现实生活中,人们经常需要回答一定范围内的两种现象或性质之间是否存在关联性或相互影响的问题.例如,就读不同学校是否对学生的成绩有影响,不同班级学生用于体育锻炼的时间是否有差别,吸烟是否会增加患肺癌的风险,等等,本节将要学习的独立性检验方法为我们提供了解决这类问题的方案。在讨论上述问题时,为了表述方便,我们经常会使用一种特殊的随机变量,以区别不同的现象或性质,这类随机变量称为分类变量.分类变量的取值可以用实数表示,例如,学生所在的班级可以用1,2,3等表示,男性、女性可以用1,0表示,等等.在很多时候,这些数值只作为编号使用,并没有通常的大小和运算意义,本节我们主要讨论取值于{0,1}的分类变量的关联性问题.
导语在必修第一册中,我们研究了函数的单调性,并利用函数单调性等知识,定性的研究了一次函数、指数函数、对数函数增长速度的差异,知道“对数增长” 是越来越慢的,“指数爆炸” 比“直线上升” 快得多,进一步的能否精确定量的刻画变化速度的快慢呢,下面我们就来研究这个问题。新知探究问题1 高台跳水运动员的速度高台跳水运动中,运动员在运动过程中的重心相对于水面的高度h(单位:m)与起跳后的时间t(单位:s)存在函数关系h(t)=-4.9t2+4.8t+11.如何描述用运动员从起跳到入水的过程中运动的快慢程度呢?直觉告诉我们,运动员从起跳到入水的过程中,在上升阶段运动的越来越慢,在下降阶段运动的越来越快,我们可以把整个运动时间段分成许多小段,用运动员在每段时间内的平均速度v ?近似的描述它的运动状态。
《函数的单调性与最大(小)值}》系人教A版高中数学必修第一册第三章第二节的内容,本节包括函数的单调性的定义与判断及其证明、函数最大(小)值的求法。在初中学习函数时,借助图像的直观性研究了一些函数的增减性,这节内容是初中有关内容的深化、延伸和提高函数的单调性是函数众多性质中的重要性质之一,函数的单调性一节中的知识是前一节内容函数的概念和图像知识的延续,它和后面的函数奇偶性,合称为函数的简单性质,是今后研究指数函数、对数函数、幂函数及其他函数单调性的理论基础;在解决函数值域、定义域、不等式、比较两数大小等具体问需用到函数的单调性;同时在这一节中利用函数图象来研究函数性质的救开结合思想将贯穿于我们整个高中数学教学。
《函数的单调性与最大(小)值》是高中数学新教材第一册第三章第2节的内容。在此之前,学生已学习了函数的概念、定义域、值域及表示法,这为过渡到本节的学习起着铺垫作用。学生在初中已经学习了一次函数、二次函数、反比例函数的图象,在此基础上学生对增减性有一个初步的感性认识,所以本节课是学生数学思想的一次重要提高。函数单调性是函数概念的延续和拓展,又是后续研究指数函数、对数函数等内容的基础,对进一步研究闭区间上的连续函数最大值和最小值的求法和实际应用,对解决各种数学问题有着广泛作用。课程目标1、理解增函数、减函数 的概念及函数单调性的定义;2、会根据单调定义证明函数单调性;3、理解函数的最大(小)值及其几何意义;4、学会运用函数图象理解和研究函数的性质.数学学科素养
今天我说课的内容是六年级上册第一单元的例6、例7《整数乘法运算定律推广到分数》,我的设计理念是从学生已有的生活经验出发,创设情境、激发兴趣、建构知识、发展思维。下面我从教材、教法和学法、教学过程、教学反思四个方面来对本课进行阐述。一、 说教材1、教材分析:“整数乘法运算定律推广到分数乘法”是在学生已经掌握了分数乘法计算、整数乘法运算定律、整数乘法运算定律推广到小数乘法的基础上进行教学的。教材从生活入手,通过几组算式,让学生计算出○的左右两边算式的得数,找出它们的相等关系,总结出整数的运算定律对分数同样适用。学好这部分内容,不仅培养学生的逻辑思维能力,而且以后能用本课所学的使一些分数的计算简便,也为以后学习用不同方法解答应用题起着积极的推动作用。
教学目标1、明确扇形统计图的制作步骤,能够根据相关数据较为准确地制作扇形统计图.2、进一步理解扇形统计图的特点,建立百分比大小和扇形圆心角大小之间初步的直观敏感度.3、能够实现不同统计图数据间的合理转换,再次体会几种统计图的不同特点,为合理选择统计图表示数据打下一定的基础.4、通过实例,理解三种统计图的特点,能根据具体问题选择合适的统计图清晰、有效地描述数据.5、在统计活动的过程中,通过相互间的合作与交流,掌握画统计图和选择统计图的方法;经历数据的收集、整理和简单分析、作出决策的统计活动过程,发展统计观念.6、通过对现实生活中的数据分析,感受数学与现实生活的密切联系,说出统计图在现实生活中的应用,提高学习数学兴趣.
小学五年级的学生应该具备一些生活技能, 学做家常菜是我们生活的必需,是每个,人都应该掌握的生存技能。本主题的目的通过学习做简单的家常菜,引领小学生走进家务劳动,锻炼生活的自理能力和提高适应生活的能力,体会生活和学习的乐趣,激发学生将学校学习和家务劳动密切结合起来,形成积极的生活和学习的态度。本主题安排了“问题与思考”“学习与探究”“实践与体验”总结与交流“拓展与创新”五个环节,从提出问题开始,到探究与体验,最后到学有所用,循序渐进,引导学习走进中式餐饮文化,学做日常生活中的家常菜,掌握劳动的技能和方法,体验做家务劳动带来的快乐和享受,激发学生对家常菜的探究与实践的兴趣,逐步掌握日常生活所需的基本技能,培养热爱劳动、热爱生活的意识。
四个同学为一个合作小组;每个小组利用教师为其准备的各类三角形,作出它们的高.比一比,看哪一个小组做得最快,发现的结论多. 师生行为:学生操作、讨论,教师巡视、指导,使学生理解【设计意图】通过让学生操作、观察、推理、交流等活动,来培养学生的动手、动脑能力,发展其空间观察.活动结论:1.锐角三角形的三条高都在三角形内; 2.直角三角形的一条高在三角形内(即斜边上的高),而另两条高恰是它的两条直角边; 3.钝角三角形的一条高在三角形内,而另两条高在三角形外.(这是难点,需多加说明) 总之:任何三角形都有三条高,且三条高所在的直线相交于一点.(我们把这一点叫垂心)课堂小结 1.三角形中三条重要线段:三角形的高、中线和角平分线的概念. 2.学会画三角形的高、中线和角平分线.