group 1
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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。
《Windows Server 2003网络操作系统》模拟试卷一一、填空题(20空,每空1分)1、一个基本磁盘上最多能有_____个主分区。
2、在加密技术中,作为算法输入的原始信息称为_______。
3、在Internet中计算机之间直接利用IP地址进行寻址,因而需要将用户提供的主机名转换成IP地址,我们把这个过程称为___________________。
4、V PN使用的2种隧道协议是________________________、_______________________。
5、共享文件夹的权限有___________、 _________和________。
6、Windows Server 2003有两种不同的客户访问许可证(CAL):_________和_____________。
7、数字签名通常利用公钥加密方法实现,其中发送者签名使用的密钥为发送者的_________。
8、可以用来检测DNS资源创建的是否正确的两个命令是___________、____________。
9、User1是Group1、Group2和Group3的成员。
Group1拥有Folder A的“读”权限;Group3拥有Folder A的完全控制的权限;Group2没有Folder A的权限。
那么,User1对Folder A的有效权限是_____________。
10、集群的主要优点有_________、__________和_________。
11、W indows Server 2003在“事件查看器”中默认显示的三个日志是______________、______________、_______________。
二、选择题(30题,每题1.5分)1、Windows Server 2003标准版支持的CPU数量为( )A.4B.6C.8D.122、下列那个命令是用来显示网络适配器的DHCP类别信息的()A. Ipconfig /allB. Ipconfig /releaseC. Ipconfig /renewD. Ipconfig /showclassid3、下列对用户组的叙述正确的是()A.组是用户的最高管理单位,它可以限制用户的登录B.组是用来代表具有相同性质用户的集合C.组是用来逐一给每个用户授予使用权限的方法D.组是用户的集合,它不可以包含组4、一个局域网利用Windows Server 2003的DHCP服务器为网络中所有的计算机提供动态IP地址分配服务。
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。
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。
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。
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。