group 1
四年级上册英语教案-Unit 1 my classroom B Let’s talk 人教PEP
Unit1 B Let’s talk教案一、教学目标学生能够理解对话大意;能够用正确的语音、语调朗读对话;能够在情景中恰当运用句型Let’s ... Let me ...提出行动建议并做出正确反应;能够在语境中理解新词语teacher’s desk, clean, help的意思,并能正确发音。
二、重点难点教学重点:在情景中学习句型Let’s …与Let me …教学难点:Let’s …与Let me …句型的区别和使用。
三、课前准备1. 自制本节课教学课件Unit 1 B Let’s talk。
2. 教材相配套的教学录音带。
3. 自制骰子。
4. 抹布、水桶等扫除工具。
四、教学过程活动1【导入】一、热身(Warm-up)1. Greeting.(1) Hello, boys and girls.(2) How are you?(3) Nice to meet you.2. First, listen to me carefully. I say you do.(教师说P5 Let’s do短语,学生做动作。
)Next, please look at the pictures. Let’s say with the actions.(课件出现图片,学生边做动作边说,最后一个图,clean the blackboard。
)Good!3. 课件呈现P5(上)图,There’s a blackboard in our classroom. Let’s go and see. What’s in the classroom? 学生看图说出已有词汇,同时出现该单词,带读,最后引出teacher’s desk。
活动2【讲授】二、新课呈现(Presentation)1. 教师板书teacher’s desk,教师根据单词构成teacher -teacher’s desk进行分节带读,Group1-Group2-Group3…, point and say, S1,S2, S3…I’m a teacher, this is my desk. This is the ...(生说teachers’ desk)2. 课件呈现Miss White微笑头像,Miss White is a teacher, too. She is very happy today. Why? 课件呈现教师节快乐,Because Teachers’ Day is coming. Let’s say to Miss White. Happy Teachers’ Day! Follow me, 学生齐说句子。
Group1
中考词汇复习Group 1一、词汇表1.a(an) [ə](en]) art.一(件;个场…);每一2.ability [ə’biləti] n.能力;才能;本领;才智3.able [’eibl] adj.能够的;有才能的;擅长的4.about [ə’baut]ad.大约:左右prep.关于;涉及…方面;在…附近;围绕5.above [ə’bʌv] adj.前文述及的;上述的adv.在(或向)…上面prep.在(或向)…上面6.abroad [ə’brɔ:d] adv.在国外7.absent [’æbsənt]adj.缺席;缺乏的;心不在焉的8.accept [ək’sept] v.接受;同意;容忍9.accident [ə’ksidənt] n.(交通)事故;意外;偶然的事10.according (to) [ə’kɔ:diŋ] adv.根据;按照11.account[ə’ kaunt] n.账户;账目;存款v.解释;报账;认为是12.ache [eik] v.疼痛;隐痛:渴望n.(身体部位)疼痛l3.achieve [ə’tʃi:v] v.实现;完成14.across [ə’krɔs] prep.穿过;横过;在…对面15.act [ækt] n.行为,行动;表演;一幕v.行动;行为;扮演16.action [’ækʃn] n.行动;行为:情节;动作l7.active [’æktv] adj.活跃的;积极的18. activity [æk’tivəti] n.活动19.actor[’æktə(r)] n.男演员actress [’æktrəs] n.女演员20.actually [’æktʃuəli] adv.事实上;实际上21.ad (=advertisement) [æd] n.广告22.add [æd] v.添加;加;增加;补充说23.address [ə’dres] n.住址;通信处24.admire [əd’maiə(r)] v.钦佩;欣赏;赞赏25.adult [’ædʌlt] n.成人adj.成年的;发育成熟的26.advantage [əd’va:ntidʒ] n.有利条件;优势;好处27.advice [əd’vais] n.劝告;建议;意见28.advise [əd’vaiz] v.劝告;建议;提出建议29.afford [ə’fɔ:d] v.负担得起;提供;买得起30.afraid [ə’freid] adj.害怕的3l.after [’a:ftə(r)] adv.以后:后来conj.在…以后prep.之后;在…后32.afternoon [,a:ftə’nu:n] n.下午33.again [ə’gen] adv.又;再34.against[ə’genst) prep.反对;违背;对着;和…比赛、对抗等35.age [eidʒ] n.年龄;时代; 时期36.ago [ə’gəu] adv.以前37.agree[ə’gri:] v.同意;赞成38.ahead [ə’hed] adv.向前地;提前;在前面39.AI (=artificial intelligence) [,a:tifʃin’telidʒəns] n.人工智能40.aid [eid] n.帮助;援助;救助二、词汇拓展1.able adj. 能够的→unable adj. 不能够的→ability n.能力2.accident n.意外:偶然的事→accidental adj.意外的:偶然的→accidentally adv. 意外地;偶然地3.achieve v. 实现;完成→ achievement n.成就4.act.行动;行为;扮演→action n.行动;行为→active adj. 活跃的; 积极的→activity n.活动→actor n.男演员→actress n.女演员5.advantage n.优势;优点→disadvantage n.缺点;不利条件三、语用词块拓展1.according to根据2.account for解释,说明3.advise sb.to do sth.建议某人做某事4.afford to do负担得起5.agree with同意6.at the age of在几岁时7.be able to能够8.be about to do sth.即将做某事9.be afraid of(doing)sth.害怕(做)某事10.be afraid to do sth.害怕做某事1l.first aid急救12.play against同…比赛。
英语辩论赛话题(通用5篇)
英语辩论赛话题(通用5篇)英语辩论赛话题篇一Group 1, For Side: Advertisements should be controlled.Group 1, Against Side: Advertisements should be encouraged.Group 2, For Side: Junior students should go in for beauty contests.Group 2, Against Side: Junior students should not take part in beauty contests.Group 3, For Side: Mobile phones are necessary for middle school students.Group 3, Against Side: Mobile phones are not necessary for middle school students.Group 4, For Side: Middle school students should go abroad to study.Group 4, Against Side: Middle school students should not go abroad to study.Group 5, For Side: Interest is the best teacher for pupils to learn English.Group 5, Against Side: Progress is the best teacher for pupils to learn English.Group 6, For Side: People and nature are in harmony.Group 6, Against Side: People and nature are not in harmony.Group 7, For Side: Mor shubaoc.c ome money means more happiness.Group 7, Against Side: More money means more sadness.Group 8, For Side: Internet alienates the relationship among people.Group 8, Against Side: Internet doesn't alienate the relationshipamong people.Group 9, For Side: Quality is more important for students.Group 9, Against Side: Scores are more important for students. Group 10, For Side: Students should wear their school uniforms. Group 10, Against Side: Students should be allowed to choosetheir own clothes.Group 11, For Side: Students should learn more from books and their teachers.Group 11, Against Side: Students should learn more from their experience and daily life.Group 12, For Side: Computers are good for studying.Group 12, Against Side: Computers are not good for studying.Group 13, For Side: Opportunity is more important for success. Group 13, Against Side: Hard work is more important for success. Group 14, For Side: It is good for students to attend after-school training classes.Group 14, Against Side: It is bad for students to attend after-school training classes.高中组Group 1, For Side: Olympic Games are purely commercial operations.Group 1, Against Side: Olympic Games are not purely commercial operations.Group 2, For Side: Government should control the rising price of houses.Group 2, Against Side: Government should not control the rising price of houses.Group 3, For Side: Reading and writing are more important thanlistening and speaking in the English study.Group 3, Against Side: Listening and speaking are more important than reading and writing in the English study.Group 4, For Side: It's more crucial for students to earn knowledge.Group 4, Against Side: It's more crucial for students to mould character.Group 5, For Side: Blogging has more advantages than disadvantages.Group 5, Against Side: Blogging has more disadvantages than advantages.Group 6, For Side: Money is the source of happiness.Group 6, Against Side: Money is the root of all evil.Group 7, For Side: Shopping online is good.Group 7, Against Side: Shopping online is not good.Group 8, For Side: Going to college is the best future for students.Group 8, Against Side: Going to college is not the best futurefor students.Group 9, For Side: Students should do as many mock tests as possible.Group 9, Against Side: Students should not do so many mock tests. Group 10, For Side: Modesty is never out of date.Group 10, Against Side: Modesty is out of date now.Group 11, For Side: Senior students should take part in after-school activities.Group 11, Against Side: Senior students should not take part in after-school activities.Group 12, For Side: Fighting against terrorism brings peace to the world.Group 12, Against Side: Fighting against terrorism causes more disasters to the world.Group 13, For Side: Paper reading will be replaced by E-reading. Group 13, Against Side: Paper reading will not be replaced by E-reading.Group 14, For Side: "Golden-Weeks" should be canceled.Group 14, Against Side: "Golden-Weeks" should not be canceled. Group 15, For Side: Pressure is a motivation for students.Group 15, Against Side: Pressure is a killer for students 决赛篇二1、 Is it a right and smart way for Americans to take up the Wall Street and even Washington D.C2、 Foreign culture has great effect on Chinese culture. Does the advantage of such effect outweigh the disadvantage or does the disadvantage outweigh the advantage?3、 What does work mean to people? Work to live or live to work?英语辩论赛话题篇三Dressing well is important to one's Iife.着装在人们的生活中作用重大。
大学英语听说教程1-Unit-2
请替换文内容
2 In what way do you feel most thankful to your parents? I feel grateful to my parent请s 替fo换r文b字r内in容ging me up, helping me
overcome crises in life, etc.
understand similarities and differences between Chinese and Western parenting.
3
大学英语听说教程1
Unit 2
WARM UP
Work in pairs and answer three out of the five questions in each group.
请替文字内容
请替换文字内容
7
大学英语听说教程1
Unit 2
WARM UP
Reference answers
GROUP 2 About you
1 In what way are your parents most proud of you?请替换文字内容 My parents are proud of me in many ways. For example, I’m a high achiever
police
repeatedly
pierce careful issue toy shower
rather thankful spread
1 A. fitness 2 A. treat 3 A. peace 4 A. appear 5 A. appreciate 6 A. fault 7 A. allow 8 A. both 9 A. without 10 A. jail
小学英语新外研版(一起)五年级上册M2U1教案
小学英语新外研版(一起)五年级上册教学设计1、教学目标:a.学习两个单词“heavy, lift”, 以及句型“There are many sweets. There are many fruits, too.”并且学习本课课文。
b. 会用形容词描述物品的特征。
c.能够与相应的情境进行联想,并在活动中积极运用形容词进行交流;培养课前预习、课后复习的习惯。
2、内容分析:本课的故事内容是Ms Smart 带着Lingling, Sam和Amy去超市购物,他们帮助Ms Smart把买来的物品放在车内,Ms Smart夸奖了他们并给他们吃冰激凌。
通过这个故事,学生可以了解英国的大超市的一些情况。
教学中要注意培养学生乐于助人的精神。
3、学情分析:根据以上对教材的分析,同时针对中国学生学习外语存在一定困难的实际情况,首先给学生创设学习英语的氛围,使学生感到身临其境;其次激发学生学习英语的兴趣,使学生在一系列的活动中,掌握知识;最后通过做游戏对学生所学的知识进行训练,从而达到巩固知识的目的。
4、设计思路:为了顺利完成教学内容,更好地突出重点,突破难点,按照学生的认识规律,我采用全身反应法、情景假设法、直观演示法、交际法、游戏法相结合的方法。
兴趣是学生最好的老师,在课堂上适当运用全身反应法、游戏法,激发学生学习英语的兴趣,进而促使学生由兴趣发展到产生要学好它的志趣。
教师通过创设情景堂,鼓励学生多开口,用英语表达自己的思想和感受。
在调动学生积极性和主动性方面,我采用了游戏法,让全班参与其中,形成师生互动,提高教学效果。
教学过程教学反思这节课,我最主要的设计思路是:借鉴直映式教学法,以实物的形式呈现出本课的教学内容。
相较于课件的不够灵活、不够立体,丰富,我认为这样的方式更适合本课的教学。
从学生上课的情况来看,学生也很喜欢这样的上课形式,效果很好。
四年级下册英语优质教案- Unit1She's a nice teacher.外研版(三起)
Module1 Unit1 She’s a nice teacher.一.教学目标1.能够听,说,认读下列单词:nice, clever, shy, answer, call, naughty, bad...2.能够使用“This is ...”句型介绍人物,并能使用“She/He/It is....”描述人或者动物的性格特点。
3.情感目标:学会观察自己的身边的亲朋好友,学会发现他人的优点和长处。
二.教学重点1.教授描述性格的单词:shy, clever, nice, naughty, bad2.如何使用句型“This is....”和“She/He/It is....”3.Be动词(am, is, are)的使用三.教学难点1.比较难的单词或短语:naughty, answer the phone2.如何来描述一个人或者动物的性格特点。
四.教学过程Step1: Greeting and Warm upT:Good morning,boys and girls! Nice to see you again. Let’s chant together.(一边chant一边做动作,chant 还可以配上韵律)T :Great! I’ll divide you into four groups:Group 1,Group2, Group3, Group4. If you did a good job, I’ll give you one star .(在课堂中加入竞争机制,有效管理课堂,并能调动学生参与的积极性)Step2:Lead -inT:Please look at the picture(出示一张女老师的照片).Who is she?S:She’s Miss He. She’s a teacher.T:Great! She’s a teacher. She’s a nice teacher. Today, we’re going to learn “Module 1 Unit1 She’s a nice teacher.”(在黑板上板书标题)Read after me ‘She’s a nice teacher.’Please pay attention to this word ‘nice’.(升降调教读或者听单词音频,让学生跟读)T:Group4----Nice! Group3----Nice!Group2----Nice! Group1----Nice!(分组读,然后酌情加分,声音洪亮,读音标准都可以加分。
译林版八年级英语上册Unit4Reading1-2学案
八年级上册Unit 4 Reading(1)【课前导学】词组翻译1.热衷于做某事 2.装饰房屋3.显得很糟糕4.犯错误5.用...装满…6.把画贴在墙上7.所有家具 8.把某物涂成蓝色9.事实上 10.上课【课堂学习】Step 1 Checkout1.检查预习作业2.请一位学生讲述对于DIY的理解Step 2 Lead-inGroup work1.What do you often do in your free time?2.Guess what I often do in my free time?3.Do you know DIY?4.Do you like DIY? Give us some examples.Step 3.presentation1.出示Andrew手拿DIY工具的图片呈现课题My cousin and DIY.2.快速阅读文章,回答:What’s the article mainly about?3.分析文章结构,归纳大意:Part 1: ( para1) Introduction of AndrewPart 2( para2---4 ) Andrew’s DIY jobsPart 3: ( para5) Advice from Suzy4. 仔细阅读文章,划出生词、难以理解的短语和句子。
(教师巡视课堂,把部分生词、短语板书在黑板上)decorate put in a brighter light have a power cut put up a picture hit a pipe ceiling take a course in DIY attend lessons instead5.通过生生之间、师生之间的互动解决难题。
Step 4.practice【课后拓展】一.根据中文指示或首字母写出单词1. I know nothing about____________(电). I `m not interested in it.2. My uncle is good at ____________ (装饰)his house.3. A car ___________(撞倒)her yesterday , Luckily ,she wasn`t badly hurt.4. All the ____________ (家具)in my house is pink.5. My brother is ___________ (疯狂)about playing computer games.6. In f_____________, you are right.7. You are so careless. You made several m_________ in your homework.8. He ____________(出席)an important meeting in Shanghai last month.9. You`d better paint the _________(天花板)white.10. This question is very easy. H_____________, she can`t answer it correctly.二.选择填空()1.My grandpa is busy ______ the ______ washing machine.A.fix: brokenB. fixing: brokenB.to fix : broke D. fixxing: broke( ) 2.________fact, I know ______more about DIY than my dad.A. In : muchB. At : manyC. In :manyD. On: broke( ) 3.Just now he _______a pike and filled my room _______waterA. hitted: withB. hitted: ofC. hit: withD.hit: of( ) 4.You`d better _______careful, _______you`ll make a mistake.A. are: andB. are; orC.be :andD. be:or( ) 5.Look !There`s a shelf ________his bed.A. onB. underC. belowD. above( ) 6.________good time they had yesterday.A. HowB. What aC. WhatD. How a( ) 7.My brother has some problems _______his English study.A. withB. onC. InD.for( ) 8.All the _______made of __________.A. furnitures are: woodB. furnitures is: woodenC. furniture are: woodenD.furniture is: wood( ) 9. My grandpa is good at Chinese history .He knows ______about it.A. everythingB. somethingC. nothingD. anything( )10.This old man is over 70. _________, he looks young.A. ButB. SoC. HoweverD.Because三.补全对话Millie: What does your dad love to do?Suzy: He love s to d____ our house. However, when he finishes, everything looks ______. Millie: What kind of things does he do?Suzy: Last month, He felt the living room was a bit b_____-. He painted them bule. But he also painted the ceiling, the floor, all the f_____ and even the cat.Millie: That sounds funny!Suzy : What’s m_______ .he spent five days p________ the shelf on the wall for me, but my books couldn`t stay on it. Because one end is much h _________ than the other. Millie: Oh, dear! He should take a c_________ in DIY.Suzy : But he says he already knows e_________ about DIY. Now, I a___________ DIY lessons every week.1._________ 2. _________ 3. _________ 4. _________ 5. _________6. _________7. _________8. _________9. _________ 10. _________八年级上册Unit 4 Reading(2)【课前导学】一、翻译词组,并在课文中划出它们。
五下马承英语Lesson1
Reading
My weekend
Phrases:
on Saturday morning do my homework have an English class in the evening in the morning in the afternoon visit my grandparents live in(居住) go to bed get up do morning exercises go to work go shopping play sports watch TV write a letter(写信) eat dinner/breakfast/lunch
Ted:____
____ you ___ on the ________?
Nana:___often ____ TV and _____ my ___.What _____ you? Ted:__ usually _____ sports. _____ I climb _______.
______ like a ___ of ____. Ted:____ also _______.I often ____ at _____. Nana: ___! You 're _____!
---What do you do on the weekend? ---I always clean my room. 1. usually, go shopping 2. often, go swimming 3. sometimes, take a dancing class
Group 1开场游戏——五毛一块
活动名称
五毛一块
活动意义
破冰、热身(放在讲创业资源的课程前可用于课程引导)
时间要求
5分钟左右
道具准备
无需道具,要五毛,女队员每人一块,然后再把所有队员打乱顺序,围成一个圆圈小跑起来。(视人员构成,一般建议少数性别的为五毛,寓意为稀缺资源)
反思重点
1.想把游戏玩的更激情,拓展培训师就得按照场上人数来出价格,每一轮都得出来不能组合的队员;
2.同学反应要快,动作要快,抢人踢人动作都要快、准、狠;
3.可以引导到创业资源,比如创业资源如何整合,资源如何争取、如何保住资源等等。
2. 队员们跑起来后培训师喊出一个价格,让所有队员迅速自由组合抱在一起,男女相加的和必须是拓展培训师喊的价格,比如,培训师说2块5,那么这时可以是五个女生抱一起,或者是两男一女抱一起,还可以是一男三女抱一起,这样都是正确的。
3.没有组队成功的同学淘汰,最后决出胜者,给予精神或物质小奖励。(培训师要现场掌握剩下人员的组成而做出不同的报价,比如剩下一男两女,培训师报一块五,最后让两个女生争夺一下)
Group 1.pptx
Hermitage cats.
The 74 Hermitage cats live at the museum 6.
they now lead an extremely 7.
(comfort) life. A press secretary is in charge of the cats,with three fulltime caretakers
8.
(attend) to their every need. There are even kitchens for preparing meals for the cats
because every cat has its own 9.
(prefer).This may all seem over the top, but Russian
学无止 境
Group 1
Ⅰ.语法填空
(2019·山东省临沂市三模)
The State Hermitage Museum in St. Petersburg, is 1.
second largest art museum in
the world after the Louvre, France, both of which are visited by millions of people 2. (annual).
Yours,
Li Hua
I feel very honoured to be invited at your lecture about the body language in different
countries next Monday. I'm real looking forward to it.
Group1-1
A C1 C2 C5 , Ci C j
元素的共轭是群G上的一种等价关系,因而给出群的一 种划分,划分出的每一子集称为群的一个共轭类 1-16
共轭类的定义、几个结论
定义1.4(元素的共轭类) 设G是群,对于元素AG,将群中所有与A共轭的元素组成 的子集合称为元素A的一个共轭类(或称为群的一个类), 记作:CA。
由前提条件知:
Al Ak ( Ai Aj )( Aj Ai ) Ai ( Aj Aj ) Ai Ai Ai E
Al Ak
1-7
对称群
2、对称群:由一个系统(物理系统、几何对象)的 所有对称变换(操作)构成的群
例如:三角形的对成群: {C3v , 操作积}
2 3 例6. 正方形的对成群: C4 {E ,C4 ,C4 ,C4 , mx , my ,u ,v }
x j G
f (x j ) j f (ax j ) j
1
n
n
x j G
1
(a G )
1-12
二、元素的阶
二、元素的阶 例10. 正方形对称群
定义1.2(元素的阶)
设G 是n 阶群,对任意AG ,必存在最小正整数m,使得, 2 3 C4 { E, C4 , C4 , C4 , mx , my , , } Am =E 群中各元素有下列幂等关系: 称m为元素A的阶。
1-14
例题
例11. 设G是群,若对 Ak G
2 有 Ak E
则群中每一元素仅与自身共轭。 证明: 由于每一元素自逆,群是阿贝尔群(见例5)。因此对
Am , An G 有:
Am An Am1 Am Am1 An An
E
仁爱版八年级英语上册Unit4Topic1SectionC优质教案
八年级上册教案设计Unit 4 Our WorldTopic 1 What ’s the strongest animal on the farm?Section CⅠ. Material analysis本节课的主要活动为1a 和2。
本节课承接Section A 学习比较级和最高级的用法、Section B 谈论动植物,同时为Section D 学习并保护动物打下基础。
本节课通过一篇关于热带雨林的阅读文章,给学生传输有关森林的知识,唤起学生的环保意识。
最后通过第二部分的写作,要求学生加入到环保的斗争当中。
本篇阅读也为本话题的重点:学习形容词的比较级和最高级,起到巩固作用。
Ⅱ. Teaching aimsKnowledge aims Knowledge aims::1. 1. 能根据音标,正确朗读出单词表中的黑体单词:能根据音标,正确朗读出单词表中的黑体单词:thick, ground, wet, cover, forest, earth, surface, control, die, wood, protect2. 2. 能正确拼读并运用黑体单词:能正确拼读并运用黑体单词:thick, ground, wet, cover, forest, rainforest, earth, surface, control, die, wood, protect3. 3. 能正确使用“比较级能正确使用“比较级and 比较级”的形式。
Skill aims Skill aims::1. 1. 能基本听懂本课文本材料及简单的环保倡议书。
能基本听懂本课文本材料及简单的环保倡议书。
2. 2. 能正确地口头介绍森林带给我们的好处,并建议大家保护能正确地口头介绍森林带给我们的好处,并建议大家保护环境。
3. 3. 能正确朗读课本的文本材料,并能读懂相关的文本材料。
能正确朗读课本的文本材料,并能读懂相关的文本材料。
4. 4. 能写一份简单的有关环保的倡议书。
group1
14/21
变迁实施条件
变迁实施条件用变迁实施函数表示,由GuardSet 表示其集合,根据GuardSet可得到任何变迁的实 施条件和该变迁的所有禁止弧 -准则2.1 过滤器i中的变迁元素集合Fts_i中的Fts_i.j 实施条件为:(1)若变迁Fts_i.j未连接到某一管道, 则此变迁不能实施(2)在(1)条件满足的情况下,其 实施条件为: 位置Pw_k和Pr_k中均没有标志,且 P_k中标志数小于N-1 用guard函数g_Fts_i.j表示 g_Fts_i.j ((#Pw_k==0)&&(#Pr_k==0)&&(#P_k<N-1))?1:0
5/21
随机回报网(SRN)
SRN的五种基本元素 1.位置(place),” ”,表示可能进入的状态 2.标志(token),” ” ,位置中的小黑点,某 个位置有标志则表示已处于该状态 3.变迁(transition),用矩形框表示。表示 位置状态的转移 4.带箭头的弧线(arc) 5.禁止弧
12/21
准则1.1
SRN子模型的连接准则
-准则1.2 管道k与过滤器j的连接准则 在ConnSet中添加(T_k, F_j),即从变迁T_k 到位置F_j的输出弧 -准则1.3 输入缓冲区到过滤器1的连接准则 在ConnSet中添加(TBuf, F_1), 即从变迁 TBuf到位置F_1的输出弧
15/21
变迁实施条件
-准则2.2 管道i中的变迁Tw_i的实施条件: (1) 位置P_i中的标志数小于N。 g_Tw_i (#P_i<N)?1:0 -准则2.3 管道i中的变迁Tr_i的实施条件: (1)若 i未连接到某一过滤器,则变迁Tr_i不能实施 (2)若i已连接到过滤器k, 则位置Pw_i、Pr_i 和F_k中均不存在标志。 g_Tr_i ((#Pw_i==0)&&(Pr_i==0)&&(F_k==0))?1:0
交换机汇聚配置
我们可以把多个物理链接捆绑在一起形成一个简单的逻辑链接,这个逻辑链接我们称之为一个Aggregate Port(以下简称AP).AP是链路带宽扩展的一个重要途径,符合IEEE802.3ab标准.它可以把多个端口的带宽叠加起来使用,比如全双工快速以太网端口形成的AP最大可以达到800Mbsp,或者千兆以太网接口形成的AP最大可以达到8Gbps.注意:S2126G,S2150G交换机最大支持的6个AP,每个AP最多能包含8个端口.6号AP只为模块2保留,其它端口不能成为该AP的成员,模块1和模块2也只能成为6号AP的成员.此外,当AP中的一条成员链路断开时,系统会将该路的流量分配到AP中的其他有效链路上去,而且系统可以发送trap来警告链路的断开.trap中包括链路相关的交换机、AP以及断开的链路的信息。
AP中一条链路收到的广播或者多播报文,将不会被转发到其他链路上。
理解Aggregate Port可以通过全局配置模式下的interface aggregateport命令手工创建一个AP当把接口加入一个不存在的AP时,AP会被自动创建。
您可以使用接口配置模式下的port-group命令将一个接口加入一个AP。
AP的编号从1-6。
aggregate port 配置指导AP 接口不能设置端口安全功能;一个端口加入AP,端口的属性将被AP 的属性所取代。
一个端口从AP 中删除,则端口的属性将恢复为其加入AP 前的属性。
配置Aggregate Port下面的例子是将二层的以太网接口0/1 、0/2和0/3 配置成2 层AP 5 成员:步骤如下:Switch# configure terminal!进入全局配置模式Enter configuration commands, one per line. End with CNTL/Z.Switch(config)# interface range fastEthernet 0/1-3!进入以太网接口0/1 、0/2和0/3进行配置Switch(config-if-range)# port-group 5!将以太网接口0/1 、0/2和0/3 配置成2 层AP 5 成员Switch(config-if-range)# end!退回到特权模式Switch# show running-config!查看当前配置System software version : 1.63 Build Jan 6 2006 RelBuilding configuration...Current configuration : 586 bytes!version 1.0!no enable services web-serverhostname Switchvlan 1!enable secret level 1 5 &t9=G1X)qu:>H.Y*rv;C,tZ[s0<D+S(\enable secret level 15 5 &tY*T7+.quZ[V/,|rv(\W&-/sX)sv'~1!interface aggregatePort 5!interface fastEthernet 0/1port-group 5!interface fastEthernet 0/2port-group 5!interface fastEthernet 0/3port-group 5!interface vlan 1no shutdownip address 192.168.26.38 255.255.255.0!ip default-gateway 192.168.26.10snmp-server community public roendSwitch# write!保存Building configuration...[OK]Switch#configure terminalSwitch(config)#interface range fastethernet 1/1-2Switch(config-if-range)#port-group 5Switch(config-if-range)#end你可以在全局配置模式下使用命令#interface aggregateport n(n为AP号) 来直接创建一个AP(如果AP n 不存在)。
linux作业1-答案
1)新建一个组group1,新建一个系统组group2参考答案:groupadd group1groupadd -r group22)更改组group2的GID为103,更改组名为grouptest参考答案:groupmod -g 103 -n grouptest group23)删除组grouptest参考答案:groupdel grouptest4)新建用户user1,指定UID为777,目录为/home/user1,初始组为group1,有效组为root,指定shell为/bin/bash参考答案:useradd -u 777 -d /home/user1 -g group1 -G root -s /bin/bash user15)新建一个系统用户user2参考答案:useradd -r user26)修改用户user1的个人说明为This is a test参考答案:usermod -c "This is a test" user17)修改用户密码过期时间为2008-07-27参考答案:usermod -e "2008-07-27" user18)更改用户主目录/home/user1为/home/user1参考答案:usermod -d /home/user1 /home/user19)创建2个组,组名分别为szmtc1、szmtc2;每个组内分别有两个用户,用户名为student1、student2;student3,student4,用户目录在/home 目录下,设置两个用户组的权限为szmtc1为501,szmtc2为502,设置用户目录权限为755。
groupadd –g 501 szmtc1groupadd –g 502 szmtc2mkdir /home/student1mkdir /home/student2mkdir /home/ student3mkdir /home/ student 4adduser –g szmtc1 –d /home/student1 student1 adduser –g szmtc1 –d /home/student2 student2 adduser –g szmtc 2 –d /home/ student3 student3 adduser –g szmtc 2 –d /home/ student4 student4 chmod 755 /home/student1chmod 755 /home/student2chmod 755 /home/ student3chmod 755 /home/ student4。
实用大学英语综合教程(基础版)课件 Part 1 Unit 2
III. Write out the words which include the following letter combinations. Key: 1. where 2. shirt 3. phone 4. knit 5. ring 6. quick 7. ostrich
IV. Choose the word you hear.
Key: VI. 1. may, play, always 2. oil, point, enjoy 3. loudly, house, around 4. toe, toast, slowly 5. beer, deer, fearful 6. dare, fair, chair 7. tourist, sure, poor 8. pie, tie, lie
C
better than his winter hat did. 3. The shrimp went to shop for a perfect shell. 4. The boat will float on the coast. 5. You can whip and whisk the egg. 6. When it is dark, park the car in the barn. 7. The quick duck went, “Quack!” when Joan twisted his quill. 8. I see Lee on the street. 9. Jean thinks it is neat to read. 10. Chuck is such a champ at chess that everybody thinks he will win.
实用大学英语综合教程 (基础版)
一级致癌物的说法
一级致癌物的说法
1. 致癌物是导致癌症的外部因素,它们的分类依据存在国际上的差异。
2. 联合国下属的国际癌症研究所(IARC)提供的分类表是当前全球最为重要且频繁引用的致癌物分类标准。
3. 致癌性是确定优先污染物的重要标准之一。
根据IARC的分类,致癌物分为四级(5类):
(一) 第一级(Group 1)致癌物:包括88种物质,如马兜铃酸、苯、黄曲毒素等,这些物质对人类有确定的致癌性。
(二) 第二级A类(Group 2A)致癌物:包括64种物质,如氯霉素、甲醛等,这些物质对人类很可能致癌,而对动物则是确定的致癌物。
(三) 第二级B类(Group 2B)致癌物:包括236种物质,如黄樟素、四氯化碳等,这些物质对人类和动物都有可能致癌。
(四) 第三级(Group 3)致癌物:包括496种物质,如呋喃唑酮、咖啡因等,目前缺乏足够的动物或人体资料以确定其是否对人类致癌。
(五) 第四级(Group 4)致癌物:包括1种物质,即己内酰胺,现有资料表明该物质不具有致癌性。
什么是编组
什么是编组,应该怎么用?编组(GROUP)是一种信号分配和控制方式,用于对调音台输入信号有选择性地进行混合,集中进行电平控制。
比如你把1-8路上的编组开关(1-2)按下,而不按下直接分配到主输出通道的分配开关(L-R),这8路的信号就首先分配到GROUP1和GROUP2编组通道而不分配到主输出通道,此时,通过GROUP1 OUT和GROUP2 OUT输出插座输出这8路的混合信号,并由GROUP1和GROUP2推子控制输出电平。
如果此时按下GROUP1和GROUP2上的分配到主输出的按键(GROUP TO MIX),这两个编组的信号就会重新分配到主输出通道与其他输入通道的信号混合。
编组的主要作用有以下几种:1、如果你的音响系统中还有几个子系统,需要单独控制各个子系统的信号电平,你可以利用编组形成多路信号输出,并可以对输出信号分别进行单独的电平控制。
比如说你的系统中有主扩声和辅助扩声音箱,需要单独控制音量。
你可以先按下所有使用的输入通道的主输出分配开关(L-R)把主输出信号给主扩声,音量由主输出推子控制。
同时按下所有使用的输入通道的编组开关(1-2),把编组1和编组2的输出信号给辅助扩声,音量由编组推子控制。
注意,此时不要按下编组上的分配至主输出开关(GROUP TO MIX),不然改变编组输出音量的时候,主输出音量也会变化。
2、可以对特定的信号进行集中电平控制。
比如在现场演出的时候,有乐队,其中乐队的鼓一共用了8只话筒,分别进入调音台8个输入通道,节目信号从主输出通道提供给下级设备。
一般情况下,如果要求鼓组的声音变大或变小,你就需要同时推高或拉低这8个通道的推子。
但是,如果你把这8路首先编到编组上而不是直接分配到主输出,也就是按下这8路的编组开关(1-2)而不按下(L-R),通过编组1-2,把这8路混合信号再分配到主输出通道。
此时,你要提升或降低鼓组的音量,你就只需要推高或拉低1和2个编组输出推子就可以了,操作变得简便了。
小学英语_Unit 1 My classroom A Let's spell教学设计学情分析教材分析课后反思
人教PEP版四年级上册英语Unit 1 My classroom A Let’s spell教学目标:知识目标:1. 能够感知并归纳a-e在单词中的发音规则。
2. 能够读出符合a-e的发音规则的单词。
3.能够根据单词的读音拼写出符合a-e的发音规则的单词。
4.能够区分a 与a-e发音规则的区别。
能力目标:1.能够运用所学发音规则拼读符合规律的单词。
2.能够运用所学发音规则拼读符合规律的单词。
情感目标:1.通过小组合作,交流与探讨,培养学生自主,合作学习的能力。
2.通过自主总结发音规则,培养学生归纳总结的能力。
教学重点:a-e的发音规则教学难点:a-e与a的发音规则区别教具准备:1.自制自然拼读教具2.自制课件教学过程:I. Warming upT: This class, let’s learn Unit 1 My classroom “Let’s spell”. First, let’s listen to an English song, please listen and try to remember the sounds of the letters.(课件播放歌曲视频)Ss: Listen and sing together.II. Presentation1. T: OK. Each letter has its sound. This class let’s learn the sound of letter A.(课件出示字母A)First, let’s read and find. (课件出示如下单词cat hat fat bag dad cap map )First, read them by yourselves, then read in your groups and discuss the rules.Ss: (Read the words and discuss the rules.)T: OK, let’s read them together.Ss: (Read the words together.)T: Very good! Can you find the rules?S1: 都含有字母a 。
用户组管理类命令-newgrp命令
用户组管理类命令-newgrp命令
一、newgrp命令的作用
每个用户可以属于一个初始组(用户是这个组的初始用户),也可以属于多个附加组。
用户的有效组默认是初始组,因此所创建文件的属组是用户的初始组。
newgrp 命令可以从用户的附加组中选择一个群组,作为用户新的初始组。
二、newgrp命令的格式
newgrp 用户组名称
三、newgrp命令实例
1.首先,创建2个新的用户组group1、group2。
2.创建一个用户user1,同时指定user1 的初始组为group1,附加组为group2。
3.使用passwd user1命令,给user1用户设置密码。
4.使用user1用户登录,创建file1文件,再通过newgrp 切换用户组group2,再创建file2文件。
5.查看这两个文件的详细信息。
可以看到,file1文件所属用户组是group1,file2文件所属用户组是group2。
通过使用newgrp 命令切换用户的初始组,所创建的文件各自属于不同的群组,通过切换附加组成为新的初始组,可以让用户获得使用各个附加组的权限。