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- 目录
篇1：人教版高二上学期数学教案
【教材地位及作用】
基本不等式又称为均值不等式，选自北京师范大学出版社普通高中课程标准实验教科书数学必修5第3章第3节内容。教学对象为高二学生，本节课为第一课时，重在研究基本不等式的证明及几何意义。本节课是在系统的学习了不等关系和掌握了不等式性质的基础上展开的，作为重要的基本不等式之一,为后续进一步了解不等式的性质及运用，研究最值问题奠定基础。因此基本不等式在知识体系中起了承上启下的作用，同时在生活及生产实际中有着广泛的应用，它也是对学生进行情感价值观教育的好素材，所以基本不等式应重点研究。
【教学目标】
依据《新课程标准》对《不等式》学段的目标要求和学生的实际情况，特确定如下目标：
知识与技能目标：理解掌握基本不等式，理解算数平均数与几何平均数的概念，学会构造条件使用基本不等式;
过程与方法目标：通过探究基本不等式，使学生体会知识的形成过程，培养分析、解决问题的能力;
情感与态度目标：通过问题情境的设置，使学生认识到数学是从实际中来，培养学生用数学的眼光看世界，通过数学思维认知世界，从而培养学生善于思考、勤于动手的良好品质。
【教学重难点】
重点：理解掌握基本不等式，能借助几何图形说明基本不等式的意义。
难点：利用基本不等式推导不等式.
关键是对基本不等式的理解掌握.
二、教法分析
本节课采用观察——感知——抽象——归纳——探究;启发诱导、讲练结合的教学方法，以学生为主体，以基本不等式为主线，从实际问题出发，放手让学生探究思索。利用多媒体辅助教学，直观地反映了教学内容，使学生思维活动得以充分展开，从而优化了教学过程，大大提高了课堂教学效率.
三、学法指导
新课改的精神在于以学生的发展为本，把学习的主动权还给学生，倡导积极主动，勇于探索的学习方法，因此，本课主要采取以自主探索与合作交流的学习方式，通过让学生想一想，做一做，用一用，建构起自己的知识，使学生成为学习的主人。
四、教学过程
教学过程设计以问题为中心，以探究解决问题的方法为主线展开。这种安排强调过程，符合学生的认知规律，使数学教学过程成为学生对知识的再创造、再发现的过程，从而培养学生的创新意识。
具体过程安排如下：
(一)基本不等式的教学设计创设情景，提出问题
设计意图：数学教育必须基于学生的“数学现实”，现实情境问题是数学教学的平台，数学教师的任务之一就是帮助学生构造数学现实，并在此基础上发展他们的数学现实.基于此,设置如下情境:
上图是在北京召开的第24届国际数学家大会的会标，会标是根据中国古代数学家赵爽的弦图设计的，颜色的明暗使它看上去像一个风车，代表中国人民热情好客。
[问题1]请观察会标图形，图中有哪些特殊的几何图形?它们在面积上有哪些相等关系和不等关系?(让学生分组讨论)
(二)探究问题，抽象归纳
基本不等式的教学设计1.探究图形中的不等关系
形的角度----(利用多媒体展示会标图形的变化,引导学生发现四个直角三角形的面积之和小于或等于正方形的面积.)
数的角度
[问题2]若设直角三角形的两直角边分别为a、b,应怎样表示这种不等关系?
学生讨论结果：。
[问题3]大家看，这个图形里还真有点奥妙。我们从图中找到了一个不等式。这里a、b的取值有没有什么限制条件?不等式中的等号什么时候成立呢?(师生共同探索)
咱们再看一看图形的变化，(教师演示)
(学生发现)当a=b四个直角三角形都变成了等腰直角三角形，他们的面积和恰好等于正方形的面积，即.探索结论：我们得到不等式，当且仅当时等号成立。
设计意图：本背景意图在于利用图中相关面积间存在的数量关系，抽象出不等式基本不等式的教学设计。在此基础上，引导学生认识基本不等式。
2.抽象归纳：
一般地，对于任意实数a,b，有，当且仅当a=b时，等号成立。
[问题4]你能给出它的证明吗?
学生在黑板上板书。
[问题5]特别地，当时，在不等式中，以、分别代替a、b，得到什么?
学生归纳得出。
设计意图：类比是学习数学的一种重要方法，此环节不仅让学生理解了基本不等式的来源，突破了重点和难点，而且感受了其中的函数思想，为今后学习奠定基础.
【归纳总结】
如果a,b都是非负数，那么，当且仅当a=b时，等号成立。
我们称此不等式为基本不等式。其中称为a,b的算术平均数，称为a,b的几何平均数。
3.探究基本不等式证明方法：
[问题6]如何证明基本不等式?
设计意图：在于引领学生从感性认识基本不等式到理性证明，实现从感性认识到理性认识的升华，前面是从几何图形中的面积关系获得不等式的，下面用代数的思想，利用不等式的性质直接推导这个不等式。
方法一：作差比较或由基本不等式的教学设计展开证明。
方法二：分析法
要证
只要证2
要证,只要证2
要证,只要证
显然,是成立的。当且仅当a=b时,中的等号成立。
4.理解升华
1)文字语言叙述：
两个正数的算术平均数不小于它们的几何平均数。
2)符号语言叙述：
若，则有，当且仅当a=b时，。
[问题7]怎样理解“当且仅当”?(学生小组讨论，交流看法，师生总结)
“当且仅当a=b时，等号成立”的含义是：
当a=b时，取等号，即;
仅当a=b时，取等号，即。
3)探究基本不等式的几何意义：
基本不等式的教学设计借助初中阶段学生熟知的几何图形，引导学生探究不等式的几何解释，通过数形结合，赋予不等式几何直观。进一步领悟不等式中等号成立的条件。
如图：AB是圆的直径，点C是AB上一点，
CD⊥AB，AC=a,CB=b，
[问题8]你能利用这个图形得出基本不等式的几何解释吗?
(教师演示，学生直观感觉)
易证RtACDRtDCB，那么CD2=CA·CB
即CD=.
这个圆的半径为，显然，它大于或等于CD，即，其中当且仅当点C与圆心重合，即a=b时，等号成立.
因此：基本不等式几何意义可认为是：在同一半圆中，半径不小于半弦(直径是最长的弦);或者认为是，直角三角形斜边的一半不小于斜边上的高.
4)联想数列的知识理解基本不等式
从形的角度来看，基本不等式具有特定的几何意义;从数的角度来看，基本不等式揭示了“和”与“积”这两种结构间的不等关系.
[问题9]回忆一下你所学的知识中，有哪些地方出现过“和”与“积”的结构?
归纳得出:
均值不等式的代数解释为:两个正数的等差中项不小它们的等比中项.
基本不等式的教学设计(四)体会新知，迁移应用
例1：(1)设均为正数，证明不等式：基本不等式的教学设计
(2)如图：AB是圆的直径，点C是AB上一点，设AC=a,CB=b，
，过作交于，你能利用这个图形得出这个不等式的一种几何解释吗?
设计意图：以上例题是根据基本不等式的使用条件中的难点和关键处设置的，目的是利用学生原有的平面几何知识，进一步领悟到不等式成立的条件，及当且仅当时，等号成立。这里完全放手让学生自主探究，老师指导，师生归纳总结。
篇2：人教版高二上学期期末英语作文
The teenage years can be an emotional assault course for parents and teenagers. A gulf can grow between parents and their children during adolescence. One of the reasons many of us find it so hard is because it's a time of rapid physical development and deep emotional changes. These are exciting, but can also be confusing and uncomfortable for child and parent alike.
Some adolescents become very concerned about their appearance. They may feel worried, especially if these changes happen earlier or later than their peers. They start to think and feel differently. They make close relationships outside the family, with friends of their own age. Relationships within the family also change. Parents become less important in their eyes as their life outside the family develops. Real disagreements emerge for the first time as young people develop views of their own that are often not shared by their parents. As everybody knows, adolescents spend a lot of time in each other's company, or on the telephone or internet to each other. These friendships are part of learning how to get on with other people and gaining a sense of identity that is distinct from that of the family. Clothes and appearance are a way of expressing solidarity with friends, although teenage children are still more likely to get their values from the family.
It is not just a difficult stage, although it can feel very much like it at times. Difficult times come and go, but most adolescents don't develop serious problems. It's worth remembering this when things are difficult.
人教版高二上学期期末英语作文
篇3：人教版高二上学期期中考试语文作文
“红色的康乃馨代表着深深的母爱。”每当想起这句话，我心里就会涌出了一丝暖暖的感觉，那久违的感觉又出现了，早已冻结的母爱似乎在我心里突然融化了……
自从上了初中以后我觉得一切都发生了巨大的变化，或许是我的心态变了，变得更加任性，更加倔强，竟然感到平日里对我很好的妈妈也变了。因为在那段时间里不知道为什么我的成绩直线下滑，全家人都在为我的成绩发愁，我更是有口说不出。我觉得自己已经很用功了，却总是没有明显的效果，这样几经波折之后，我已经对学习完全失去了信心，成天昏昏沉沉，似水年华就这样悄无声息地流逝着。我知道初中的三年是很快的，其实我也并没有麻木到完全失去了良知，我知道妈妈的心里也很着急，好几个晚上妈妈都到我卧室要跟我说话，其实她不说，我也知道她想说些什么，所以我总是借口躲开。
一天中午妈妈在吃饭的时候终于说开了，尽管我知道妈妈说的都是真心话，是为我好，可是我真的不爱听，总觉得很烦。我心里的压力已经够大了，而妈妈那样只会给我增加更大的压力，更何况那时我已经完全对学习失去了信心。已经报有听天由命的思想了，准备初三毕业后就去上中专，然后，远离那个让我厌烦的家。所以当妈妈说出那些在她心里已经积了很久的关心我的话时，我第一次跟妈妈发了火。当时只是认为妈妈是想要我在爸爸及保姆面前丢丑，很多不该说得话都从我嘴中喷出，妈妈盯着我看了半天，最后只说她不像我说的那样。我心里真的很难过，我不该那样对妈妈，就算是妈妈错了，我也不该，更何况妈妈是为了我好。可我的性格又偏偏生来很倔，不习惯轻易低头，那次之后我和妈妈的关系就僵了，我知道我是应该向妈妈承认错误的，可我总觉得不好意思说出口，更不知道从何说起，日子就那样平淡无味地过着，我想时间会冲淡我们之间的矛盾的，更何况我们是母女呢!
我在日记里默默地承认着自己的错误，同时也发誓要努力学习考上高中了我一定会消除和妈妈之间的误会。我真的努力学习了，可成绩还是无法提高，我无法向别人解释我真的认真学习，我那时很无望很无助，而跟妈妈的关系就那样一直僵持着，这让我觉得在家里无脸住下去。我跟爸爸说我要到乡下好好学习一年，然后考上来，爸爸也许因为我跟妈妈的关系会影响我的心情，什么话也没说就送我去了乡下。那一年里，我觉得自己孤独得像个孤儿，一年里没有回过一趟家，偶然打个电话也只是给爸爸，因为我怕我经不住妈妈那问寒问暖的话语。
一年后，我考上了高中，重新回到家里，妈妈对我比以前更好了，上高中了妈妈每天陪着我起早贪黑，我的心里就一阵难过。
妈妈，您的爱就像一株红色的康乃馨，它会在我的心中永存!
篇4：人教版高二上学期期中考试语文作文
北京的春天，是极不易把握的。三月时分，树的枝头上有了绿意，进了四月，迎春及桃花就开了，这景况大约也跟南国的城市相去不远，所不同的是，北京的春天却还脱不尽冬衣。北京的春天，无雨，而是大风卷起的漫天黄沙。黄沙弥漫时，只感到昏天暗地，人行走在街道上，满面蒙尘。这境况，怎么会有人去吟咏“清明时节雨纷纷”呢?在这样的日子走出去，人只是感觉好没面子，头发灰黄，颜面粗糙，表情因黄沙迷眼的缘故而变得古怪。岂只是诗兴没了，甚而连游兴也全无。
春天，“花”可成了关键词!罢罢罢!总算让我纠正了对北京的春天的坏印象，至少也能体验到大自然所恩赐的美好时光。要说北京的花，是南方的鲜花所不能想象的，那种激情，是南方的水土无法孕育出来的。枝头沉睡的花蕾好象都积蓄了一年的力量，要在四五月份一次把美丽炫耀出来，那是一种极其让人难忘的生命力在春天的时候迸发出来
从桃李到海棠到梨树，还有香飘十里的槐花，……，一个接一个，毫不迟疑，毫不客气，尽情地开放着。每一样都精彩极致，马路旁，乡村里，小道间，都是花的海洋，春天的气息洋溢了整个空间。 我所感叹的是，经过那么凛冽的寒风，那么污染的空气，那么干涸的土地，它们居然还可以开出这么美、这么艳丽的花来!它们居然还可以开得这么兴高采烈、神采飞扬!!它们居然还可以在如此绚烂妩媚中托出更加精巧玲珑、可爱俏丽的果实来!!!它们在沉默中蕴涵的巨大力量一次又一次感动了我。他们是树，是绿叶，托出美丽的鲜花，丰硕的果实，经过新春、酷暑、金秋、严冬……一年四季，生命在彼此之间的互相依托而圆满着，丰盛着。有人曾感叹环境的污染使美好的生活被破坏了，在感叹中我却看到那些无声无息默默在污染的空气中依旧不懈地献出美丽鲜花绿叶的树们，它们在做，在努力，在真真正正地改变着，虽然力不从心。
北京的春天，蕴涵着它的两面性，便也为我们提供了一种片面认识的可能性，就想到在人的一生中，我们要片面地看待多少事物呵。 爱北京的人们，爱春天的人们，为了这些沉默不语美丽的花树勇士们，我们难道还不值得竭尽自己所能、和她们一起爱护北京的春天吗?我多么希望，下一个北京的春天，不再见漫天的风沙，不再见灰暗的尘粒，只有那爽爽落落的春风，和满城满郊漫山遍野的鲜花海洋……
篇5：人教版高二上Unit 13 The water planet
Period 1 Warming up & Listening
Teaching Aims:
1 To help Ss get to know more about water and water has brought us both in our daily life and spiritual life.
2 To develop Ss’ listening ability by listening activities.
Teaching Important and Difficult Points:
1 Getting the Ss to express themselves while doing the experiments shown in warming up.
2 Learning some English poems about ocean and the life of sailors and fishermen
3 Trying to understand what the given passages in listening are talking about.
Teaching Methods:
1 Practising talking about water and ocean.
2 Listening activities
3 Individual, pair, and group work to make every student active in class.
Teaching Procedures:
Step 1 Greetings
Step 2 Revision
Check the language points of unit 12.
Step 3 Lead-in
Get Ss to know the new words of unit 13
Ask Ss a question. Why water is so important for us?
(Not only because it is one of the living elements we have to rely on, but also because it affects us in almost every aspect in our daily life, ranging from every necessities to some activities for entertainment.)
Show Ss a 地球仪 or a map of world.
What’s this? What colour is it? (blue) Why is it blue? (covered by water)
Today we will learn something about water and the ocean.
At the beginning of the class, Let’s do some experiments. (Warming up)
Discuss the questions in warming up.
Step 4 Listening
Do you know some poems about water and the ocean?
We will learn something about it.
Let’s go to the Listening part. It’s about a poem written by an English poet.
Go through the given part of listening.
Listen to tape for the first time to get a general idea about listening material.
Listen to tape for the second time to finish the exercise in part 1 & 2.
Listen to tape for the third time to check your answers.
Step 5 Homework
1 Revise the new words of unit 13.
2 Preview speaking.
篇6：人教版高二上学期数学知识点总结
空间中的垂直问题
(1)线线、面面、线面垂直的定义
①两条异面直线的垂直：如果两条异面直线所成的角是直角，就说这两条异面直线互相垂直。
②线面垂直：如果一条直线和一个平面内的任何一条直线垂直，就说这条直线和这个平面垂直。
③平面和平面垂直：如果两个平面相交，所成的二面角(从一条直线出发的两个半平面所组成的图形)是直二面角(平面角是直角)，就说这两个平面垂直。
(2)垂直关系的判定和性质定理
①线面垂直判定定理和性质定理
判定定理：如果一条直线和一个平面内的两条相交直线都垂直，那么这条直线垂直这个平面。
性质定理：如果两条直线同垂直于一个平面，那么这两条直线平行。
②面面垂直的判定定理和性质定理
判定定理：如果一个平面经过另一个平面的一条垂线，那么这两个平面互相垂直。
性质定理：如果两个平面互相垂直，那么在一个平面内垂直于他们的交线的直线垂直于另一个平面。
提高数学成绩的方法
一、课内重视听讲，课后及时复习
接受一种新的知识，主要实在课堂上进行的，所以要重视课堂上的学习效率，找到适合自己的学习方法，上课时要跟住老师的思路，积极思考。下课之后要及时复习，遇到不懂的地方要及时去问，在做作业的时候，先把老师课堂上讲解的内容回想一遍，还要牢牢的掌握公式及推理过程，尽量不要去翻书。尽量自己思考，不要急于翻看答案。还要经常性的总结和复习，把知识点结合起来，变成自己的知识体系。
二、多做题，养成良好的解题习惯
要想学好数学，大量做题是必可避免的，熟练地掌握各种题型，这样才能有效的提高数学成绩。刚开始做题的时候先以书上习题为主，答好基础，然后逐渐增加难度，开拓思路，练习各种类型的解题思路，对于容易出现错误的题型，应该记录下来，反复加以联系。在做题的时候应该养成良好的解题习惯，集中注意力，这样才能进入最佳的状态，形成习惯，这样在考试的时候才能运用自如。
三、调整心态，正确对待考试
考试的时候，大部分的题都是基础题，只有少数几道题时比较难的题，所以我们要调整好心态，鼓励自己，在做题的时候认真思考，不要浮躁，在考试之前做好准备，做一做常规的题型，不要为了赶时间而增加做题速度，要有条不紊的进行。
篇7：高二上人教版Unit 3 Art and architecture
unit 3 art and architecture i． 单元教学目标技能目标goals▲ talk about art and architecture▲ learn to express preferences▲ learn about the past participle (2): used as object complement▲ write about advantages and disadvantages ii． 目标语言 功 能 句 式learn to express preferences i’d rather...i’m much more interested...in my opinion, ...i really prefer... i wouldn’t feel happy if....i am not very interested in...i don’t get very excited about...if you ask me, then... i prefer something that...i like seeing something...what i like is...i can’t stand... 词 汇1. 四会词汇architecture, architect, preference, design, furniture, taste, sofa, honey, modern, convenient, block, apartment, style, stand, passage, ugly, construct, construction, steel, concrete, impress, roof, balcony, fantastic, create, seashell, sail, stadium, net, nest, belong, paint, aside, rent, rent, development2. 认读词汇danny, heater, unnatural, unfriendly, cathedral, antonio gaudi, barcelona, despite, frank lloyd wright, the opera house, structure, workshop, tea-house3. 词组act as, fill up with, belong to, set aside 4．重点词汇preference, design, furniture, impress, create语 法the past participle used as object complement重 点句子1．prefer doing to doing2. 动词+宾语+宾语补足语结构keep/ leave/ get/ have/ make/watch/notice/see/ hear/listen to/ feel/ find/ want/ wish/ like +object + object complement ⅲ. 教材分析与教材重组 1. 教材分析本单元以architecture为话题，旨在通过单元教学让学生了解建筑学，通过古今中外建筑的比较，培养审美能力。1.1 warming up 通过现代建筑与古老建筑的比较，要求学生说出自己的喜好，并要求学生能正确运用美学与建筑学词汇和句型。鼓励学生设计自己理想的住房，培养学生的创新能力。谈论世界著名的建筑师，讨论其作品以及其建筑风格。谈论世界著名艺术大师和艺术作品，丰富学生的视野，激发他们积极主动学习英语的兴趣。 1.2 listening是关于amy 和danny要为他们的新家购置家具，他们在商店与销售人员谈论他们爱好的对话录音。通过听对话录音，要求学生掌握一些有关家居的词汇，以及表达爱好的句型，为speaking部分学生口语的输出打下基础。1.3 speaking是一个任务型教学活动。通过几件物品讨论现代和传统艺术，讨论时要用到表达爱好的句型。这一部分设计是在“听力”部分信息输入的基础上，训练学生口语输出的能力。1.4 pre-reading是reading的热身活动。要求采用小组合作讨论式学习的方式完成。1.5 reading是关于现代建筑的说明文。从文中我们可以了解到古今中外一些著名建筑和一些建筑大师的建筑风格。文中指出只有那些接近自然，能与大自然融为一体的建筑才能给人以美感。1.6 post-reading第一个题是训练代词，要求学生在阅读中能正确判断代词所指代的内容；第二题在理解课文的基础上，重点训练学生分辨事实的能力；第三题是训练学生的思维能力。第四题通过现代建筑与古代建筑的比较，培养学生的审美能力。第五题要求学生能够把课本知识与社会生活知识联系起来。1.7 language study 分词汇和语法两部分。其中，word study 是一个英语释义练习，进一步丰富和巩固学生的建筑词汇。grammar 在引导学生体验、探究、归纳过去分词宾语补足语的基础上，进行任务型巩固训练。part 1是根据语境完成句子，这部分给出了过去分词，比较简单，目的是训练学生正确运用过去分词做宾语补足语。part 2则是用动词的正确形式填空，旨在训练学生正确运用过去分词做宾语补足语。part 3要求学生正确运用过去分词做宾语补足语句型布置自己的房间。本单元的语法训练设计由易到难， 三个层次设计得非常科学，完全符合学生的认知规律。1.8 integrating skills中的reading and writing是一个整体训练材料，而阅读部分（reading）又是主课文的延伸，要求学生了解一些废弃古建筑的再利用。写作部分(writing) 要求同学们在学习课文后，开动脑筋，思考怎样赋予废弃建筑第二次生命。此活动不仅有助于提高学生的英语写作能力，而且能够开阔学生的思维，增强他们的环保意识。2. 教材重组2.1从话题内容和训练目的上分析，listening与speaking相一致；将listening, speaking整合在一起，设计成一节“听说课”。2.2把warming up 作为reading的导入内容。将pre-reading，reading和post-reading整合在一起上一节“阅读课”。2.3 将grammar与workbook中的语法练习题整合在一起上一节“语法课”。2.4 将integrating skills 设计为一节“综合实践课”。3. 课型设计与课时分配（经教材分析，本单元可以用5课时教完）1st period listening && speaking2nd period reading3rd period grammar4th period integrating skills (i)5th period integrating skills (ii) iv. 分课时教案 the first period listening && speaking teaching goals 教学目标1. target language 目标语言a. 重点词汇和短语 preference, furniture, sale, sofa, honey, block, apartment, style, stand, in a hurryb. 交际用语 learn the following by heart.i’d rather...i’m much more interested...in my opinion, ...i really prefer...i wouldn’t feel happy if....i am not very interested in...i don’t get very excited about...if you ask me, then...i prefer something that...i like seeing something...what i like is...i can’t stand...2. ability goals 能力目标 enable students to express their preferences.3. learning ability goals 学能目标 through listening and speaking activities, students will learn how to expresstheir preferences.teaching important points 教学重点 learning the patterns used to express one’s preferences.teaching difficult points 教学难点 making up another dialogue and act it out in class.teaching methods 教学方法 1. listen to the tape (individuals). 2. pair works to practice the dialogue and make up another dialogue (cooperative learning).teaching aids 教具准备 1. a recorder 2. a projector 3. a computerteaching procedures && ways 教学过程与方式 step i brainstormgo over the vocabulary of furniture，and this will help students to do the listening comprehension exercises.t: good morning / afternoon, class! ss: good morning / afternoon, mr.…/ ms…!t: first, i’d like you to play a game. i will divide you into several groups. eachgroup will try to think as many words about furniture as you can within twominutes.the group that gets the most words will win. two minutes later show the words about furniture on the projector. step ii leading int: if you have a new home, what furniture would you like to buy?s1: a double bed, a sofa, a tv set, a table made of glass and a fridge.s2: i like classical furniture.t: ok! amy and danny want to buy some furniture for their new home. they are talking about their tastes and preferences with the sales assistant. let’s listen to the tape. we will listen to the tape for three times. for the first time, do exercise 1, the second time, exercise 2 and the third time, exercise 3. step iii listeningplay the tape for students. while listening, the students should grasp the keywords and pay more attention to those sentences used to talk about one’s tastesand preferences.after listening to the tape, do the exercises, and check the answers with the wholeclass. then sum up the useful expressions used when talking about one’s tastesand preferences.the teacher shows the useful expre sions used to talk about one’s tastes and preferences on the powerpoint. sions used to talk about one’s tastes and preferences on the powerpoint. step iv speakingthe teacher shows pictures of four items on the powerpoint. students arerequested to describe their preferences.t: now let’s practice these useful expressions. there are four items. talk aboutyour preferences with your partner, using the useful expressions. don’t forget to tellus why you prefer one thing to another. first student a please, and i will give you asample.the teacher and one student will give a sample.the other students listen carefully while the teacher and the student performing the dialogue.after seeing the sample, students will do pair works.t: ok, everyone! now you are going to work in pairs to talk about your ownpreferences. please remember to use the useful expressions on the powerpoint.the useful expressions:i’d rather...i’m much more interested...in my opinion, ...i really prefer... i wouldn’t feel happy if....i am not very interested in...i don’t get very excited about...if you ask me, then... i prefer something that...i like seeing something...what i like is...i can’t stand... step v practicetwo minutes later, some pairs will be asked to act out their dialogues. step vi role playdivide the students into several groups. five students will make up a group. eachstudent will play one of the roles on page 96. practise expressing opinions.students are given 5 minutes to prepare and then some groups will be asked toperform in front of the class. step vii homework1.finish the listening exercises on page 95.2.try to find out the history of art and architecture, names of artists and architects, famous buildings and works of art in the world on the internet or from the library.
篇8：高二上人教版Unit6 Life in the future
veral minutes. t： now, please report your work.g1:we can see a man beside a high-tech car, which is controlled by an advanced computer and equipped with high-quality solar battery. this type of car is friendly to the environment and very popular with consumers.g2:here we can find some space buildings, which are made of advanced building materials. there the scientists can carry out experiments, watch other planets and so on.s: in this picture we can see an astronaut and a spaceship. in the near future, more astronauts from different countries will be able to travel to the space and carry out more experiments so that we can have a better understanding of the universe.s: in the last picture, we can see several old people talking about medicine. in the future, doctors will have further research into diseases and the medicine will be more effective in preventing and curing diseases.t: wonderful. in a word, life in the future is very mysterious and fascinating. yet we can do more to make our future safer and easier.2. group discussion task 1: predict life in the future this step is designed to let the students choose the most interesting topic and make bold predictions.help:1. the whole class is divided into eight groups. 2. the student can choose the group whose topic interests him or her most.3. get the students think of more key words or phrases first.4. each group tries to choose two or more best ideas to share with the class.5. one member from each group is invited to report their work.after 5 minutes.t: now it’s time to report your work. g1: in the future people will communicate more easily andconveniently. they can talk on the phone and send emails on the internet. they can do almost everything on the internet, like shopping, reading, borrowing books, depositing money, ordering meals or tickets. g2: as to where people work in the future, the answersare divided. some people will be able to work at home on the internet, which we call soho. more people will work in the companies also related to computers. at that time there will be more and more new jobs like database managers, sales engineers and so on.g3: in the future more companies and individuals prefer to do business on the internet by using various kinds of smart cards. even if you don’t take any cash you can also do shopping, go to the concert or travel abroad. in a word, e-commerce will play a more important role in our daily life.g4: human beings will look healthier in the future. inspite of this they still get sick. however, scientists will have a better understanding of how cancer develops. g5: in the future people will speak much fewer languages. both english and chinese have become world languages. g6: in the future people will live in different places. as the population is exploding, more people will prefer to live in faraway places, under the sea or even on the moon. g7: as people’s life is improving, people prefer to travel to different places. not only do they enjoy local travel but also they travel abroad. some even can afford to travel in space.g8: students in the future will be able to receive far better education with the help of the internet and e-schools. and their subjects will be richer and more personal. step iii speakingthis part is to provide the students with realistic situations so that they can have more chances to practice the functional items---making predictions task 2: having “doubles” or nothelp:1. divide the students into four groups. 2. individual work. each student has to offer more answers to support his/her opinion.3. group work. each member states his or her opinion and reasons.4. class work. group leader reports their work. after 5 minutes.t: now you’ve discussed this topic. i’d like the four group leaders to report your work.g1: i think it would be great to have a double because i could use the double to do the things i don’t enjoy, for example, going to school, doing homework and taking exams. having a double would also be good because i can do two things at a time， so that i can work more efficiently.g2: but we think having a double might be dangerous because we don’t know what the double might do. for example, the double might cheat people out of their money. as a result i will have to be punished because of him.g3: no, i don’t think so. i would like to have a double, because i don’t have time to do all the things i’d like to do, for example, cooking meals and having meetings. having a double would be wonderful because we could have more time to do things i like best.g4: however, having doubles would make people confused, because no one would know who the double really was or how to treat it. for example, the double wouldn’t have any parents and relatives. it would be bad for society if people had troubles, because it would be very difficult to make it clear who was to blame for the very trouble. t: thank you for all your wonderful ideas. since it’s a hot topic and we don’t reach any agreement, we can say it’s still early to use this technology to make “doubles”. step iv talking (see workbook p117)this part should be a free talk concerning future life. the students should be encouraged to express their own opinions freely. task 3： planning my future help:1. divide the students into 8-10 groups. 2. each student chooses one job and asks as many questions as possible.3. group members role-play the discussion by asking and settling questions.4. collect creative ideas from the groups and enjoy them. after several minutes.t: now let’s invite some pairs to report their own discussion.sa: mr. zhang, i’m 17 years old and want to become a scientist. i want to know what i need to do in order to become a scientist.sb: well, that’s a good idea. to be a scientist, you need to be interested in science first.sa: that’s true. i show great interest in how the satellite works. anything else?sb: being a scientist, you should not only be curious about nature but also determined. while doing experiments you may come across many troubles. you should be determined to overcome them in order to achieve your aim.sa: then where can i receive my education on satellites, space etc.?sb: as to this question, you can go to the library or surf the internet for help. i think there are quite a few such universities both in china and the usa.sa: how long should i study this?sb: well, it depends. maybe as long as ten years. sa: thanks for your advice. i think i’ll work hard at my lessons and try to read more science books to lay good foundations for my future.sb: good luck to you. free discussionthis step is to further stimulate the students’ curiosity about the future and ambition to struggle for their own lifelong destination.t: can you predict your own future? here all of you have the chance to express your aims or dreams.s: i’d like to be an inventor. i’ll invent a new spaceship which travels in space very easily and cheaply. so we can make a trip to the moon or the mars. s: i’d like to become an architect. i’ll try to design the most beautiful buildings in the world so that everyone who travels in beijing wants to pay it a visit. s: i want to be a physician. i’ll devote myself to studying the cause of aids so that the people in asia and africa are free from this deadly disease....step v language points1. double ① n. a person who looks exactly the same as someone else: e.g. hey tony, i met someone at a party last week who was your double.② adj. twice the size, amount, price, etc., or consisting of two similar things together:e.g. go through the double doors and turn left. the word “cool” has a double “o” in the middle.2. copy ① n. something that has been made to be exactly like something else: e.g. this painting is only a copy of the original hanging in the louvre. could you make a copy of this for tomorrow’s meeting, please?② v. to produce something so that it is the same as an original piece of work: e.g. patricia’s going to copy her novel onto disk and send it to me. he tends to copy his brother in the way he dresses. step vi homework 1. consolidationt: today we have learned so much about making predictions. i do hope you can practise more after class.2. topict: here is a topic as today’s homework——my dream. please share your dreams with the others next time.3. preview the new lessont: besides, please preview the new lesson after class. now class is oveunit 6 life in the futurei. 单元教学目标技能目标goalstalk about life in the futurelearn about noun clauses (2)practice making predictionswrite a definition paragraphⅱ.目标语言 功能句式making predictionsit would be wonderful if... it would be bad for...if...it’s possible/impossible to predict... no one can predict what/when....just imagine if... we can only guess... 词汇1. 四会词汇prediction, exact, forecast, trend, contemporary, indicate, urban, energy, ensure, system, consumer, reform, goods, purchase, tiny, cash, remain, importance, regular, medical, deal, physician, cure, biochemistry, educator, distance, hopeful, cheat, wrist, require, programme, reality, absurd2. 认读词汇mekanika, glimpse, e-commerce, necessity, crowded, mall, chip, sars, smallpox, genetics, lifelong, well-prepared, identify, old-fashioned, imitate, virtual, lifelike, definition3. 重点词组catch a glimpse of, keep in touch with, pay attention to, deal with, in store4. 重点词汇forecast, major, indicate, ensure, remain, regular, cheat, cure, require语法noun clauses(2) 名词性从句1. what life will be like in the future is difficult to predict.2. they are careful about what they eat and exercise regularly.3. the schools of the futures will probably be different from what they are today.4. we cannot be sure whether our dreams will come true, but we can at least be hopeful that our efforts to improve the world will be successful.5. if we learn to accept change and appreciate what is new and different, we will be well-prepared for whatever the future may have in store.6. the discussion topic for today is what school will be like in the future. 重点句子1. what life will be like in the future is difficult to predict.2. one way to catch a glimpse of the future is to examine some of the major trends in contemporary society.3. a good example of how transportation is changing is the new maglev train....4. to ensure safety, the train is controlled by an advanced computer system.5. the internet also makes it easier for companies to keep in touch with customers and companies in other countries.6. people in the future will be able to enjoy a longer and healthier life and remain active even in old age. iii. 教材分析与教材重组1. 教材分析本单元的主题是“life in the future”，功能项目是“谈论未来生活”和“做出预测判断”，写作要点是学写描述性文章。通过本单元的学习，要让学生了解科学技术进步在未来生活中的巨大推动作用。教师要借助听力、讨论、阅读、写作等一系列扎实有效的教学活动，进一步拓展学生想象力，提升其语言实践能力，让他们意识到只有用自己的智慧和勤劳的双手才能改造社会，为人类造福。1.1 warming up 提供了四幅图片和八个相关话题，本部分可以作为下文“说”的铺垫，学生分组讨论，使其有话可说，无话不说。1.2 listening有两个任务，一是听录音，回答问题，侧重于听能培养，二是讨论mekanik的生活方式与现代生活方式的不同，并给mekanika写信回答她所关心的问题。1.3 speaking要求把全班分成四个小组，每一组从不同角度出发陈述赞同或反对“有一相似人”的理由。这种开放式讨论有助于引导学生运用所学知识合作学习，指导他们全面地、辨证地看待问题。1.4 pre-reading是reading的热身活动。要求学生采用快速浏览的方式确定不同段落的主题，潜移默化地培养学生skimming这一非常有效的阅读技巧。1.5 reading采用“总-分-总”的写作手法，大小标题形象地展示了本文的结构和内容。教师要引导学生充分利用“标题”这一有效的阅读技巧把握文章主旨，了解作者的写作意图，并深入地培养他们猜测词义、理解语句、归纳段落大意等能力。1.6 post-reading从回答问题、分析比较和展开讨论三个层面由低到高、由易到难，循环递进，引导学生结合现实生活，发挥想象，畅谈未来，从而达到综合运用英语进行交际的目的。1.7 language study “词汇学习”部分旨在培养学生根据语境猜测生词并正确运用所学词汇的能力。其核心是把词汇的学习和真实的语境巧妙结合起来，逐步拓展学生的词汇量。“同步语法”部分则设计了不同类型的连线题、判断题和转换题，旨在训练学生准确理解名词性从句并灵活运用的能力。1.8 integrating skills 阅读部分是一封书信，mekanika给人类写一封信，介绍3044年生活方式和具体感受。文章充满大胆的想象和对美好生活的向往，借此来激发学生的想象力，使其憧憬未来生活，更要珍惜现代生活。相对起来，写作任务更加富有挑战性，不但要求学生大胆想象，还要求学生言之有理，言之有物。1.9 tips指导学生如何巩固自己的词汇量——建立单词收集卡片。1.10 checkpoint部分简要地总结本单元语法重点，并引导学生总结与本单元话题密切相关的词汇。 2. 教材重组2.1 从话题内容上分析，warming up 与speaking相一致；而从训练目的上分析与talking比较一致。从教材份量来说，可将warming up，speaking和workbook中的talking整合在一起，设计成一节任务型“口语课”。2.2 将listening 和workbook中的listening整合在一起，设计成一节任务型“听力课”。2.3 可将pre-reading, reading和post-reading三个教学活动整合在一起上一节任务型“阅读课（一）”。2.4 可将language study 与workbook中的practising语法练习题整合在一起上一节任务型“语法课”。 2.5 可将integrating skills 中reading和workbook中lintegrating skils 的reading整合起来上一节“阅读课（二）（泛读课）”。2.6 将integrating skills 中的writing和workbook中integrating skills 的writing整合成一节“写作课”。3. 课型设计与课时分配（经教材分析，根据学情，本单元可以用六课时教完） 1st period 口语课 2nd period 听力课 3rd period 阅读课 4th period 语法课 5th period 泛读课 6th period 写作课 ⅳ. 分课时教案 the first period speaking teaching goals 教学目标1. target language目标语言 ①重点词汇和短语 prediction, in the future, double, exact, original, confused ②交际用语making predictions it would be wonderful if... it would be bad for...if... it’s possible/impossible to predict... no one can predict what/when.... just imagine if... we can only guess...2. ability goals能力目标 ①enable the students to think up more creative ideas for the future life. ②encourage the students to express themselves freely by making predictions.3. learning ability goals 学能目标 ①help the students to make predictions by using given clues. ②inspire the students to be more creative in thinking.teaching important points教学重点get the students predict what future life will be like by using the useful expressions.teaching difficult points 教学难点how to encourage the students to talk freely and actively on making predictions.teaching methods教学方法1. co-operative method for creative ideas.2. task-based approach to discuss the topic——having a double or not.teaching aids教具准备1. a computer 2. a projectorteaching procedures & ways教学过程与方法 step i lead-in1. greetings.2. lead-int: boys and girls, we may often ask ourselves this question: “what will life be like in the future?” it’s really an interesting question. today we’ll take this chance to talk about this subject. now let’s come to warming-up. step ii warming uppicture talkingthis step is meant to train the students to watch carefully and think actively.t: now you are divided into four groups. each tries to think of more than one sentence to describe the picture. then the group leader will be asked to report your work. veral minutes. t： now, please report your work.g1:we can see a man beside a high-tech car, which is controlled by an advanced computer and equipped with high-quality solar battery. this type of car is friendly to the environment and very popular with consumers.g2:here we can find some space buildings, which are made of advanced building materials. there the scientists can carry out experiments, watch other planets and so on.s: in this picture we can see an astronaut and a spaceship. in the near future, more astronauts from different countries will be able to travel to the space and carry out more experiments so that we can have a better understanding of the universe.s: in the last picture, we can see several old people talking about medicine. in the future, doctors will have further research into diseases and the medicine will be more effective in preventing and curing diseases.t: wonderful. in a word, life in the future is very mysterious and fascinating. yet we can do more to make our future safer and easier.2. group discussion task 1: predict life in the future this step is designed to let the students choose the most interesting topic and make bold predictions.help:1. the whole class is divided into eight groups. 2. the student can choose the group whose topic interests him or her most.3. get the students think of more key words or phrases first.4. each group tries to choose two or more best ideas to share with the class.5. one member from each group is invited to report their work.after 5 minutes.t: now it’s time to report your work. g1: in the future people will communicate more easily andconveniently. they can talk on the phone and send emails on the internet. they can do almost everything on the internet, like shopping, reading, borrowing books, depositing money, ordering meals or tickets. g2: as to where people work in the future, the answersare divided. some people will be able to work at home on the internet, which we call soho. more people will work in the companies also related to computers. at that time there will be more and more new jobs like database managers, sales engineers and so on.g3: in the future more companies and individuals prefer to do business on the internet by using various kinds of smart cards. even if you don’t take any cash you can also do shopping, go to the concert or travel abroad. in a word, e-commerce will play a more important role in our daily life.g4: human beings will look healthier in the future. inspite of this they still get sick. however, scientists will have a better understanding of how cancer develops. g5: in the future people will speak much fewer languages. both english and chinese have become world languages. g6: in the future people will live in different places. as the population is exploding, more people will prefer to live in faraway places, under the sea or even on the moon. g7: as people’s life is improving, people prefer to travel to different places. not only do they enjoy local travel but also they travel abroad. some even can afford to travel in space.g8: students in the future will be able to receive far better education with the help of the internet and e-schools. and their subjects will be richer and more personal. step iii speakingthis part is to provide the students with realistic situations so that they can have more chances to practice the functional items---making predictions task 2: having “doubles” or nothelp:1. divide the students into four groups. 2. individual work. each student has to offer more answers to support his/her opinion.3. group work. each member states his or her opinion and reasons.4. class work. group leader reports their work. after 5 minutes.t: now you’ve discussed this topic. i’d like the four group leaders to report your work.g1: i think it would be great to have a double because i could use the double to do the things i don’t enjoy, for example, going to school, doing homework and taking exams. having a double would also be good because i can do two things at a time， so that i can work more efficiently.g2: but we think having a double might be dangerous because we don’t know what the double might do. for example, the double might cheat people out of their money. as a result i will have to be punished because of him.g3: no, i don’t think so. i would like to have a double, because i don’t have time to do all the things i’d like to do, for example, cooking meals and having meetings. having a double would be wonderful because we could have more time to do things i like best.g4: however, having doubles would make people confused, because no one would know who the double really was or how to treat it. for example, the double wouldn’t have any parents and relatives. it would be bad for society if people had troubles, because it would be very difficult to make it clear who was to blame for the very trouble. t: thank you for all your wonderful ideas. since it’s a hot topic and we don’t reach any agreement, we can say it’s still early to use this technology to make “doubles”. step iv talking (see workbook p117)this part should be a free talk concerning future life. the students should be encouraged to express their own opinions freely. task 3： planning my future help:1. divide the students into 8-10 groups. 2. each student chooses one job and asks as many questions as possible.3. group members role-play the discussion by asking and settling questions.4. collect creative ideas from the groups and enjoy them. after several minutes.t: now let’s invite some pairs to report their own discussion.sa: mr. zhang, i’m 17 years old and want to become a scientist. i want to know what i need to do in order to become a scientist.sb: well, that’s a good idea. to be a scientist, you need to be interested in science first.sa: that’s true. i show great interest in how the satellite works. anything else?sb: being a scientist, you should not only be curious about nature but also determined. while doing experiments you may come across many troubles. you should be determined to overcome them in order to achieve your aim.sa: then where can i receive my education on satellites, space etc.?sb: as to this question, you can go to the library or surf the internet for help. i think there are quite a few such universities both in china and the usa.sa: how long should i study this?sb: well, it depends. maybe as long as ten years. sa: thanks for your advice. i think i’ll work hard at my lessons and try to read more science books to lay good foundations for my future.sb: good luck to you. free discussionthis step is to further stimulate the students’ curiosity about the future and ambition to struggle for their own lifelong destination.t: can you predict your own future? here all of you have the chance to express your aims or dreams.s: i’d like to be an inventor. i’ll invent a new spaceship which travels in space very easily and cheaply. so we can make a trip to the moon or the mars. s: i’d like to become an architect. i’ll try to design the most beautiful buildings in the world so that everyone who travels in beijing wants to pay it a visit. s: i want to be a physician. i’ll devote myself to studying the cause of aids so that the people in asia and africa are free from this deadly disease....step v language points1. double ① n. a person who looks exactly the same as someone else: e.g. hey tony, i met someone at a party last week who was your double.② adj. twice the size, amount, price, etc., or consisting of two similar things together:e.g. go through the double doors and turn left. the word “cool” has a double “o” in the middle.2. copy ① n. something that has been made to be exactly like something else: e.g. this painting is only a copy of the original hanging in the louvre. could you make a copy of this for tomorrow’s meeting, please?② v. to produce something so that it is the same as an original piece of work: e.g. patricia’s going to copy her novel onto disk and send it to me. he tends to copy his brother in the way he dresses. step vi homework 1. consolidationt: today we have learned so much about making predictions. i do hope you can practise more after class.2. topict: here is a topic as today’s homework——my dream. please share your dreams with the others next time.3. preview the new lessont: besides, please preview the new lesson after class. now class is ove
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高二上人教版Unit 1 Making a difference（精选8篇）
