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篇1:人教版高三数学教案
教学目标
掌握等差数列与等比数列的性质,并能灵活应用等差(比)数列的性质解决有关等差(比)数列的综合性问题.
教学重难点
掌握等差数列与等比数列的性质,并能灵活应用等差(比)数列的性质解决有关等差(比)数列的综合性问题.
教学过程
【示范举例】
例1:数列是首项为23,公差为整数,
且前6项为正,从第7项开始为负的等差数列
(1)求此数列的公差d;
(2)设前n项和为Sn,求Sn的值;
(3)当Sn为正数时,求n的值.
篇2:人教版 高三教学案例
温州十四中学 金炎
一、主题与背景
自从使用高中英语新教材以来,中学英语教师们一直都致力于一种有别于我国传统英语教学法的新教学方法的探索,然而不少教师感到困惑,新教材,“容量大,重运用“的特点不易于在教学活动中得到体现,甚至不少教师重操旧业,采用以轻车熟路的模式组织教学活动。课堂形式呆板,教师大力喷灌,学生机械记忆,忽略了语言学习在丰富而生动的交际活动中去完成。
国外权威语言学家认为:“英语是学会的而不是教会的。”此观点阐明: 英语教学活动应创设语言交际情景,教师应努力指导学生运用英语,而不是致力于英语知识的讲解。因为“说英语”不是英语教学的一种过程,而是英语学习的结果。把英语作为“死”的知识去分析其词语的用法,句子的结构以及课文的特点,不考虑其交际功能的体现是一种已经落后于时代的教学理念。采用新型的教学模式则能够扬长避短,体现新教材的特点,侧重于学生语言交际能力的培养。
这种教学模式首先把学生界定为教学活动的主体,一切教学活动皆围绕学生而进行,教师充当的角色是导演,学生是演员,要演活这场特殊的戏,教师应坚决摈弃落后的观念,不要担心学生不会学而越俎代庖。要求学生听课,作课堂记录是必要的,而整堂课学生都在紧张记录,而不运用英语思维、交谈,这种课势必缺乏创造性,将耗费学生宝贵的学习时间,更为严重的是这种方法培养出的学生能看能写但不能说。“哑巴”英语会严重阻碍英语交际能力的培养。如果我们以学生为中心,让学生充分发挥主体作用,不担心学生出错,不包办代替学生的学习活动,英语教学活动将结构合理、效果明显,教师从走进教室的第一分钟起就应该准确将自己进行角色定位,指导学生作好值日报告,抓好课堂教学的第一环节。让学生用英语谈论“天气,”“学生出勤”及“发生在周围的重大事件”等,学生在作值日报告时,不流于形式,想说,敢说,整个活动开展得自然有序。
二、情景描述
以阅读材料的内容为基础,结合个人的经历和感受,讨论有关学校教育的问题。重点训练阅读和表达能力。
1.导入:教师提出以下问题,让学生简要回答:我们为什么上学?学校教育的主要目的是什么?谁应该为学生的教育负责?
2.教师布置阅读任务:学生阅读一篇题为“Why Go to School?”的短文。要求学生一边阅读一边标出他们完全赞同和不太赞同的观点。
Why Go to School?
School is one of the first social situations that you go to outside your family.Your attitudes are deeply shaped by the type of education you receive,by the personalities of your school and its teachers,and by the suitability of the education for your career objectives.Although your first responses to your early educational environment were probably influenced by the attitudes of your family and friends,your later responses to life itself will be greatly affected by how and where you were educated.
Both you and your school are responsible for your education;it is a two-way street.Many people today argue that today's educational system does not meet the needs of its students.If this is true,then the entire system of our education must be examined and reorganized.If the statement is false,then it is the responsibility of the educational system to make people believe the system is a good one.No educational system,however,can do a good job for you,the student,unless you yourself make contribution to the educational process.
The main objective of a school should be to teach you to think for yourself,to find your own value,and to develop your potential.School is not a place where you simply learn the ideas of other people or the knowledge written in books.
In school,you must always ask yourself questions like these:Whose values am I learning?Where do the teachers' ideas come from?Is everything introduced in the teaching materials right and appropriate for me?
The best school is not the one that forces you,the student,to fit it,but the one that tries its best to fit you.So does your school fit your interests and your needs?
3.学生以组为单位(4-5人一组),交流他们的意见,
特别是与短文中观点不一致的意见。组长负责记录小组中较为集中的意见。
4.各组向全班汇报交流讨论的结果。教师在黑板上做简单的记录。
5.选择几种有争议的观点,问全班学生谁同意这些观点,谁反对这些观点。
6.重新分组:就某一问题,持相同观点的学生组成一组(4-5人为宜),然后讨论为什么支持(或反对)某一观点,列出几条理由。
7.各组派一名代表汇报结果。
8.就某一问题进行辩论。
三、问题讨论
1. 这个活动的主要目的是把阅读与表达有机地结合起来,重点是培养学生批判性思维能力和表述个人观点的能力。另外,学生可以结合自己的经历和体验发表观点,因而贴近学生现实生活。
2. 不论用什么方法教学,永远是一个教一个学双向的活动,先说教法,方法要多样化灵活能吸引学生的注意力,一定要有教学重点难点让学生知道本节课的知识点是什么
3. 不能只看课堂活跃热闹,要分层次教学从易到难,在教学中好学生差学生要分别对待:
较长较难的句子让好学生来翻译,容易的句子让差生来翻译,达到大部分同学能听懂以后增加难度。
4.做问答练习时把答题写在纸条上,每个学生发一张,问题在老师手上,老师问问题时同学看着自己的小条回答,这其中学生们也会互相提醒帮助,这个练习即练习了听练习了说又练习了读。达到了一切教学活动以学生为中心,老师只是起到引导作用。
5.尽量做到少批评多鼓励,这样学生就会有兴趣自觉学习,如果学生对学习英语产生了兴趣他们就会多学会少玩会,如果他们失去了学习兴趣,就会少学会多玩会,知识是学会的而不是教会的,所以教师一定要想出各种方法使学生爱学英语,激发起学生自觉学习的能力,才能达到提高学习成绩的目的。
四、诠释和研究
通过对以上案例的分析,我个人认为要注意以下几个问题:
1. 采取以学生为主体的教学模式,要求教师提供给学生极大的空间。
2. 着力于培养学生英语运用能力,教师应多鼓励学生使用英语同时允许学生出现失误,在语言运用中学生自发纠正自己的“错误”。
3. 不断地形成熟练的英语运用能力。教学过程中教师应积极地引导学生操练英语句型,进行情景会话,开展课堂表演等活动。
4. 整个教学设计应以指导学生为主,真正做到精讲多练,积极带领学生说英语、用英语,帮助学生从英语交际活动中获得愉悦,从而变被动接受知识为主动学习知识,锻炼语言交际能力。
篇3:人教版高三Unit13 The Moonstone
Words:
1. formal正式, informal
2. be considerate to sb/It’s considerate of sb to do sth (优化)
3. be astonished at sth
4. It’s stubborn in doing sth
5. be guilty of a crime (有罪)
6. convince sb of sth (使某人相信某事)
be convinced of 确信, 承认
convince sb to do sth
7. assume this to be true
假定这是真的
assume a leading position/ responsibility
担任领导职务/负责, 承担责任
8. remark on sth 评论
make a few remarks 对…发表意见
9. be innocent of the crime 没有犯罪
10. commit offense/crime
11. turn sb down= decline
III. reading;
1. bring sth with sb 随身带着
2. hear about/of听说某事
3. lead a sad lonely life过着悲惨孤独的生活
4. Be set in 以。。。为背景
5. in an act of 以一种…行动
6. Pass on …to …传递
7. on the reception for
8. work together on it
9. be in love with
10. His move to quit smoking cigars to please her is seen by the servants as evidence that he is in love with Rachel
12. Quit doing放弃做某事
13. But from the moment Rachel fastens it to her dress, things start going wrong.
The moment… 一。。。就。。。
Fasten…to…系
14. things start going wrong
15. hasn’t been sleeping well
16. Coincidence 巧合
17. Write sb a prescription 开处方
Franklin’s reply that doctors just guess which drug they should recommend, makes Dr Candy extremely angry.
18. in usual foreign clothes 穿着….
19. staying the night
20. it’s gone
21. troubled by the loss of ..,
22. May/might have done It’s too late now. I think he may have gone to bed.
23. Must have done
24. Can/can’t have done 用于否定句和疑问句
25. investigate the theft 调查偷窃案件
26. as the story develops=with the story developing
27. take sth as
28. Loss of face 丢脸
29. Force of habit习惯
30. Resist doing 抵制做某事
31. to …degree
To a certain degree he likes his job.
32. Be enthusiastic 热情
33. Vital clue 重要线索
34. Whoever is guilty must have a stain on his or her clothes=Anyone who…
Give the book to whoever would like to read it
Give the book to whomever you like
No matter who breaks the law, he should be punished.
Integrating skill
1. stained garment
2. be mistaken about
Cancel the wedding 取消,call off
3. Meanwhile, at the same time, in the meantime 同时
4. keep him out of trouble
5. even though
6. be angry with sb /at sth/about sth
7. protect sb from
8. found the news deeply disturbing
9. be delighted to do sth
10. be missing/be gone
11. It turned out that
12. the perfect solution to his financial problem
13. Desperate for sth 急需。。。
14. Have no choice but to do 别无选择,只能。。。
Can do nothing but do/ Can’t but do
Can’t help but do
15. Justice was done after all .正义得到伸张。
16. pay a high price for
17. Be engaged to 订婚, be engaged in doing 忙于
18. as for 至于…
篇4:人教版高三Unit14 Zoology
I. Reading
1. get hold of /catch hold of /seize hold of
2. tell …apart 把…区分开
3. over and over again/again and again/time and time again
4. maximum/minimum/medium 最大/最小/中等
5. as a matter of fact/ in fact/ actually
6. take turns speaking 轮流做某事
7. different varieties of 各种各样
8. live in groups 群居
9. make their nests in trees or holes
10. make it possible to do sth
11. the amazing ways honey-bees communicate
12. again and again /over and over/ time and time again/ again and again
13. one after another/ one by one 一个接一个
14. a transparent wall through which he could observe what went on inside.
15. tell … apart 把..分开
16. a marked bee 带有标记的蜂蜜
17. to his surprise
18. perform a dance 跳舞
19. make a circle to the right 向右转一圈
20. convey more information
21. mark sth blue
22. do the circle dance
23. in a straight line
24. wag from side to side
25. turn in a semicircle
26. It was evident that /It was apparent that
27. The farther away the feeding station was, the slower the dance was. 越…..越….
The higher we stand , the farther we see.
28. come to light
It came to light that she was actually very rich. 人们发现她确实富有
29. tell the exact distance 说明确切的距离
30. the remaining question
31. an adequate account of 充分的说明
32. the procedure by which bees communicate information. 传递信息的方法.
33. fly directly to it
34. make a beeline for
As he spoke , he made a bee line for the door.
他一边说, 一边直接朝门走去.
II. Integrating skills
35. belong to
36. place us in… 把我们划在…一类
37. be better than…at.. 比…更擅长于…
38. compared to=compared with… 和… 相比较起来
compare A with B 把…和…相比较
compare A to B 把….比喻….
39. depending on….
40. be divided into
41. tend to do sth
42. walk upstraight
43. give birth to
44. make a distinction between 把…区分开
45. warn sb of sth
warn sb against doing sth= warn sb not to do sth
46. keep in touch
47. up to 1.2 meters
48. be similar to
49. feast on things we may find disgusting.
吃一些令我们作呕的东西.
50. conduct …experiment
51. Nor does it make much sense to the animals.对于动物来说也没有多大意义.
52. What may be of greater importance is …
53. hide from 躲避
54. use…as..
55. crack open 砸开
篇5:人教版高三Unit12 Education
Warming up
1. a heavy workload 繁重的工作压力
2. to reduce the workload减轻压力
3. to meet parents’ expectations满足父母的期望
4. be strict with sb对某人严格
be strict in sth 在…方面严格
5. to raise academic standards提高学术水平
6. under high pressure在高压下
Reading
1. introduce a law 出台一部法律
2. nine years of compulsory education九年义务教育
3. reach a target 达到目标
4. be linked to 与……连接(相关)的
5. at the forum 在论坛上 (at the exhibition)
6. the United Nations Educational, Scientific and Cultural Organization (UNESCO)联合国教科文组织
7. make a commitment 承诺,保证,承担
(= make a promise)
8. to begin with首先;第一点(理由); 起初
9. create a positive attitude 有积极的态度
10. attach importance to education 重视教育
11. drop out辍学,掉队,退出
12. be sceptical of 对……抱着怀疑的态度
13. have a tendency to 趋向于….= tend to
14. rather than 胜于,而不是
15. take in接收,收容; 接受, 接待, 吸收, 理解, 包括, 轻信, 注意到, 欺骗
16. result in = cause导致,产生某种作用或结果 (前因后果)
result from= be caused by 由。。。所引起 (前过后因)
17. mixed-grade classes 混合班级
18. spread out: 铺开,展开
19. depend on = rely on依赖,指望
20. donate money through the Hope Project通过希望工程来捐款
21. one in three = one out of three 每三个中一个
22. provide them with a full curriculum提供他们全部课程
23. adopt distance learning methods 采用远程教学的方法
24. overcome problems 克服困难
25. accomplish a goal 实现目标
26. in the least developed nations 在一些最不发达的国家
27. raise money筹钱
28. in remote areas 在边远山区
29. in rural areas 在乡村地区
in urban areas 在城市地区
30. reach the target / goal 达到目标
Language study
1. update their skills 更新他们的技能
2. living standard生活水平
3. be of benefit 有益,有用
4. in the next decade在后十年
5. work out:
算出(总数);
to work out a sum
带来好结果;有预期的结果
Things will work themselves out.事情会有好结果的。
运动,锻炼 to work out at the gym
Integrating skills:
1. in other aspects 在其他方面
2. it is evident that = it is obvious that 很明显…
3. absorb information 吸取信息
4. give close attention to 密切注意
5. take a hands-on approach to education 通过动手实践的方法来接受教育
6. a variety of 各种各样的
7. to suit their students’ different learning styles 适应学生不同的学习方式
Words:
1. be loaded with/be burdened with
2. have a tendency to do /for sth
3. be absent from
4. distribute among
5. donate sth to sb
6. cover many aspect
7. It’s evident that = It’s obvious that
8. select/choose
★ 人教版 高三 Unit 12 Words and Expressions
★ 人教版 高三unit 3 The Land Down Under 单词、短语及重点词讲解
★ 高三英语(人教版)unit4 new words 的详解
★ 高中地理教学反思
★ 江苏省李堡中学高三年级主备课unit 2(人教版高三英语教案教学设计)
★ 人教版高三Unit Eight Learning a foreign language
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