解:设甲班的人数为x人,乙班的人数为y人,根据题意,得x+y=93,14x+13y=27,解得x=48,y=45.答:甲班的人数为48人,乙班的人数为45人.方法总结:设未知数时,一般是求什么,设什么,并且所列方程的个数与未知数的个数相等.解这类问题的应用题,要抓住题中反映数量关系的关键字:和、差、倍、几分之几、比、大、小、多、少、增加、减少等,明确各种反映数量关系的关键字的含义.三、板书设计列方程组,解决问题)一般步骤:审、设、列、解、验、答关键:找等量关系通过“鸡兔同笼”,把同学们带入古代的数学问题情景,学生体会到数学中的“趣”;进一步强调数学与生活的联系,突出显示数学教学的实际价值,培养学生的人文精神;进一步丰富学生数学学习的成功体验,激发学生对数学学习的好奇心,进一步形成积极参与数学活动、主动与他人合作交流的意识.
【设计意图】本环节旨在引导学生明确如何围绕人物的精神品质和性格特点选择材料,刻画人物内在的个性特征。两个环节,从课内引申到课外实践,用思维导图的方式,直观易学。三、抓住细节,事中显神当我们写多件事情表现人物时,要处理好叙事的详略。详写的事情也不能面面俱到地展开叙述,而应该突出重点,要将概括叙述与具体叙述相结合,力求通过一些具体而微小的细节表现人物特点。1.例文引路,学习方法师:下面我们一起以魏巍的《我的老师》为例,学习多件事情叙述的详略安排,学习用细节刻画表现人物形象。(1)师印发并指导学生阅读魏巍的《我的老师》。(见《教师教学用书》P161第三单元写作的“例文评析”栏目)(2)明确阅读要求。课件出示:阅读要求①勾画出描写蔡老师的外貌、语言、动作、神态、心理等语句,体会语句表达的真挚感情。
这篇文章的语言既有说明文语言准确、严密的特点,又有新闻特写鲜明、生动的特点,请和大家分享你最喜欢的语句,并说明理由。(学生发言)1.准确、严密示例:据地质学家化验证明,这些浮雕至少能耐800年到1000年之久。明确:“据地质学家化验证明”交代数据来源;“至少”对时间进行限定。2.鲜明、生动示例一:深夜,起义的新军和市民,摧毁了湖广总督府门前的大炮,正向总督府里冲去。总督府内熊熊的火焰冒向天空;总督府的牌子,被打断在阶前;撕碎了的清朝的龙旗,被践踏在地上。明确:“摧毁”“冲去”“冒”“打断”“撕碎”“践踏”一系列动词,准确生动地表现了起义者大无畏的革命气概,也揭示了清朝腐朽的本质。示例二:一群男女青年学生,举着“废除卖国密约”的旗帜,慷慨激昂地来到天安门前。梳着髻子、系着长裙的女学生,在向市民们散发传单。人群高处,一个男学生正在向围着他的群众演说。愤激的青年演说者,怒形于色的人群,使整个浮雕充满了痛恨卖国贼、激动人心的气氛。
3.小组讨论:诗人为我们呈现出了什么样的人间四月天图景?结合诗句分析。教师:把学生分为6至8个小组讨论,最后每组选出代表回答,教师点评各组答案,最后指正。教师指正:诗人为我们呈现了一幅清新明丽、温润丰美的人间四月天图景。和煦的微风在春光里飞舞,黄昏的云烟弥漫,繁星在夜空闪烁,细雨洒落在花前,百花鲜艳、婀娜,夜夜的月光皎洁明净,草是鹅黄的,芽是嫩绿的,莲是洁白的,繁花一树树绽放,春燕一双双呢喃。四、课堂小结1.这首诗歌我们已经学习完了,下面请同学们概括归纳一下主题。教师:要求一至两名学生归纳,最后教师指正。预设:这首抒情诗中,诗人使用了描写和抒情的表达方式,极力抒写“你”是“人间的四月天”,表达了对爱的热烈歌颂。2.分析明晰本诗写法,体会写作特色。(教师讲解,学生记录)
一、导入新课我们已经学过鲁迅先生的不少文章,学过他的小说,看他用无数生动的形象表达他在时代里的“呐喊”与“彷徨”;学过他的散文,与他一同在失落中“朝花夕拾”,安静地回忆过往。今天,我们将学习鲁迅先生的一篇杂文,看他是如何作为民族斗士,将手中的笔,变成抨击敌人的枪。二、教学新课目标导学一:学习驳论,理清思路1.初读课文,找出对方的错误观点,并说说作者是怎样引出这一观点的。明确:对方的错误观点是“中国人失掉自信力了”。开篇以似乎确凿的事实为据,用一句话指出了三个阶段中“中国人”表现出来的三种不同的态度:盲目骄傲,夜郎自大;盲目崇拜,借助外援;今不如昔,祈求鬼神。即由自夸到崇洋,到自欺欺人、虚无渺茫的态度变化。因此有人“慨叹”:“中国人失掉自信力了。”这是论敌的论点。
本单元主要是学习情态动词can的肯定句、否定句、一般疑问句,肯定与否定回答,以及特殊疑问句的构成和用法;复习what弓!导的特殊疑问句。本单元主要围绕“加人俱乐部,谈论自己的能力”这一话题,设计了三个任务型活动:任务一是:自己的才艺表演,学习情态动词can的用法;任务二是:自己建立俱乐部,运用情态动词can谈论自己在某一方面的能力、喜好和意愿;任务三是:我能成功,主要是复习巩固谈论各自的爱好和特长的方法。单元知识系统(树)Can you/he/she/you dance? 一Yes,I/he/she/we can./No,I/he/she/we can’t.Can Bill play the guitar?一Yes,he can,but he can’t sing.单元总体目标通过学习情态动词can的用法,使学生能够表达自己在某一方面所具备的才能;能够谈论自己的喜好与意愿;能够为自己成立的各种俱乐部制作海报;会写招聘广告。单元重难点一览重点 难点I.复习词汇:can,play,want2.词汇:guitar, dance, swim,sing, chess, speak, drum,trumpet,violin,play the guitar3.句型:Can you/he/she/you dance?Yes,I/he/she/we can./No,I/he/she/we can’t.Can Bill play the guitar?
在这一单元中,学生要学会就有关人与物之间所属关系进行问答的句子。本单元大量引入有关运动的名词,要求学生彼此询问有无此类物品,并做出相应的回答。 同时学习表示建议的句型Let’s运动的形容词。 本单元所选用的话题来自学生所喜欢的生活片段,在教学中生生交流、师生交流会更融洽,会促进师生彼此间的了解,成功的教学还会让部分学生养成良好的运动习惯和收藏习惯。 教学目标 1) 语言知识:A.在询问对方是否有某物的对话中学会使用do和does引导的一般疑问句; B. 学会使用描述性的形容词来评价事物; C. 学会在对话中使用名词复数; D. 学会用祈使句来向对方提出建议. 2) 语言技能:A. 学会用祈使句询问某人是否有某物; B. 学会向他人提出建议的句子. 3) 学习策略:A.通过与同学讨论,做出猜测;
讨论喜欢的影视类型及理由:在看过一部影视作品后,大家总是喜欢在一起谈论影视的主要内容、主要情节、主要演员主题歌曲、主题音乐等,互相介绍自己对该影视的看法。教师可以组织一次活动,分组讨论学生喜欢看什么类型的电影,并说明喜欢的理由。运用I like…I don’t like…Because it is…等语言结构;然后每个组选派一名代表向全班学生阐述本组组员喜欢观看的电影类型;最后汇总,总结出全班同学最喜欢观看哪一种类型的电影。如果有可能,根据学生的选择放一部(一段)这种类型的影视节目。通过学生的讨论、调查,使他们在完成任务的过程中学会询问和陈述自己或别人在影视方面的喜好及理由,更好地巩固所学内容。Self Check教学内容Self Check(教材P58)教学目标知识与能力复习词汇go,movie,action,comedy,documentary,thriller,and,but,scary,funny, sad,exciting;引导学生复习、巩固“制订计划和打算并谈论喜好和偏爱”的目标语言。
个性练习设计 阅读广告:在日常生活中,人们去买东西之前,一般要阅读广告,从广告中获取该商品的一些有用信息,包括价格、性能等。所以给学生提供有些商品的广告或让学生去商店去阅读一些商品的广告,从中获取商品的价格,即可以锻炼学生的阅读能力,又能提高实践能力。 Self Check 教学内容 Self Check(教材P42) 教学目标 知识与能力 复习词汇pant,sock,T-shirt,sweater,shoes,color,black,white,red,green,blue,big,short,long,数字10--31; 学习词汇Zig Zag,clothes,shop,yellow,ask,which;学会谈论服装的价格、颜色、大小和长短;学会填写价格标签。 过程与方法 运用Summarizing和Classifying的学习策略。在复习教学中,运用听写、绘画、互相询问调查与检测等手段,促使学生不断地使用所学内容,从而提高他们灵活运用知识的能力。 情感态度价值观 该部分学习内容主要是复习谈论服装的价格和颜色以及对服装的喜好,能引起学生的共鸣;通过购物的对话练习教学生学会购物时使用的礼貌用语和如何感谢人。
本单元主要学习一周中星期一到星期天的表达方式;掌握学科的表达;学习用because和表示品质的形容词表示理由;学习what,why,who引导的特殊疑问句。本单元围绕“谈论自己所喜欢的学科”这一话题,设计了三个任务型活动:任务一是:谈论自己所喜欢的学科,学习what引导的特殊疑问句和学科的表达;任务二是:一分钟演讲,让学生介绍自己喜欢某一学科的理由,学习why等特殊疑问句;任务三是:写信,巩固和延伸所学知识,掌握星期的表达方式。单元知识系统(树)What’s your/his/her favorite subject? My/His/Her favorite subject is English.Why do you like math. Because it’s interesting.Why does he/she like art? Because it’s fun.When do you have math? I have math 0n Monday,Wednesday and Friday.What’s Ken’s favorite subject? Science.单元总体目标通过本单元的学习使学生学会谈论自己喜好的学科或自己喜好的其它事情并给出理由;学会说出一周的七天;学会合理地安排自己的作息时间。
知识与能力复习词汇time,morning,breakfast,get up,g0 t0 bed,homework,clock,afternoon,lunch,run,watch TV,evening,dinner,eat,usually,o’clock,thirty,fifteen,take a shower,go t0 school等;引导学生复习、巩固“询问和谈论时间”的目标语言并运用所学知识安排自己的学习和课外活动。过程与方法运用Summarizing,Classifying和Comparing的学习策略。在复习教学中,运用听写、提问、对话演练与调查活动,促使学生不断地使用所学内容,从而提高他们灵活运用知识的能力。情感态度价值观本部分的主要内容是复习“日常作息时间”的询问和表达。通过互相询问或谈论自己或对方的作息时间安排和活动计划,培养学生良好的作息习惯和守时习惯。教学重、难点及教学突破重点复习词汇time,morning,breakfast,get up,g0 to bed,homework,clock,afternoon,lunch,run,watch TV,evening,dinner,eat,usually,o’clock,thirty,fifteen,take a shower,go to school等;引导学生复习、巩固“询问和谈论时间”的目标语言。
一、知识和能力目标本单元的核心教学内容是“认物”。用英语确认周围的常见事物比较符合英语初学者的实际情况。通过本单元教学,使学生运用所学句型,去熟悉周围事物的名称;教学生学会在实际生活中如何确认事物。通过辨认物体,学生学到一些生词,并巩固所学句型。二、过程和方法目标教师要尽量使学生对课文中出现的句型能够熟练上口,这样,学生才能顺利开展比较灵活的对话。教师可以用手势,表情,动作等示意,帮助学生听懂课堂教学内容,但在实际操作中应尽量避免“明知故问”的倾向,应该采用应用性原则;如:遮盖物品、显露局部、辨认物体、完形识别、图形辨认等方法。三、情感态度和价值观目标目标在学生学习过程中的作用至关重要,教师要帮助他们建立起一个切合自己实际的目标,通过渐进的学习以及一点一滴的进步,使他们逐步建立起成功感。成功越多,自信心就越强。
Step 3 (3b)First, tell the students when we talk about our future plans, we often use: I’m+verb+ing When we talk about what we must do, we use have to. Ask the students to fill in the blanks in 3b. The answers are: shopping, go to see, a test, I’m going, my family. Step 4 (3c)Let the students write an e-mail message to a friend. Say why you can’t visit next. Before the exercise, ask the students to give some possible answers and write them on the blackboard. So the students will feel easy to finish the writing exercise. After they finish it, Let them to correct it in groups first. Each group chooses theirs best one to read in front of the whole class. Step 5 ( planning a party )First read the conversation in the box together. Then ask the students to turn to page 88.Write down everything you have to do next week. Write in all the things you have to do . Ask the students to look at the list. Ask them “What day are you free?” This is when you can have your party. Step 6 (Self check 1 )Let the students to fill in the blanks with the words given. Change the forms of the words if possible. Then make their own sentences. The answers are: visit, playing, have to, study, comeStep 7 (Self check 2)Imagine you are Marie. Read the information and look at your schedule. Write replies to the invitation.
1. First, ... then, ... next, ... finally, ...首先,……然后,……接着,……最后,……这是英语中表达做某事的步骤的一种说法。如果步骤较多,还可以说:first-next-after that-later on-finally/at last通常你会听到说英语国家的人在说 first, next, then, finally 和后面的内容时,他们会做一些停顿。这样就能提前告诉听者接下来讲的是一系列的步骤。这一点在朗读和听力中应特别注意。2. how many, how much均为疑问词,同是“多少”,但用法不同。请看:how many修饰可数名词复数,how much修饰不可数名词。但在用法上,同学们常犯如下错误:1) [误] How many are there bananas on the table?[正] How many bananas are there on the table?[析] how many, how much 中的many,much是形容词,常修饰名词作定语,故后面跟名词。2) [误]How much tea are there on the table?[正]How much tea is there on the table?[析] how much修饰不可数名词时,谓语动词用单数。how many与how much的区别可简记为:前how many:问“多少”,复数名词后面跑;how much问“多少”,不可数名词单数好。前者答语用基数词,后者答语用数量关系。
“Go for it!” is based on “Task-Based Language Teaching”. It adheres to “The authenticity principle”, “The form-function principle”, “The task dependency principle” and “The principle of learning by doing”. These principles all accord with the demands of curriculum focus.In and of Grade Seven (II), “Go for it!”, students have learned “The Simple Past Tense”. And it appears again in of Grade Eight (I). teaches students more about how to talk about events in the past. In addition, it gives affirmative and negative statements in the past tense, such as the sentence patterns “Did you see …?” “Were there …?” “Did you go …?” As the first part of Unit 8, Section A opens with a picture presenting the last school trip in the aquarium and continues with several step-by-step practice activities, which are all good for students to master “The Simple Past Tense”. Doing well in Section A will help students integrate the new target language with that in Section B. Thus, they can describe the events in the past freely and foster their own ability of reflecting and practicing. II. Teaching ObjectivesTeaching objective is the beginning and aim of teaching activities. According to the overall goal of the English elementary course--- improve students' synthetic ability of language application, which should be based on the development of students’ “Language knowledge”, “Language skills”, “Character building”, “Learning strategies” and “Cross-cultural awareness”. The teaching objectives are described as follows(I). Knowledge objectivesi. Master the simple past tense of regular and irregular verbsii. Recite the new words and expressions about the last school trip in the aquarium, including their pronunciation and intonation
一、 教学内容Section A 1a----1c二、 教学目标1.学习词汇do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, sweep the floor, clean the living room.2.句型 Could you please clean your room? Yes, sure.三、 教学准备 学生预习本单元所有的词汇多媒体课件 活动表 奖品四、 教学过程Pre-task1. Warming upEnjoy ourselves. Watch cartoon Cinderella. 看动画片段《灰姑娘》导如入本课话题和新词汇“chores”美丽善良的鬼姑娘因继母的嫉妒,每天得做所有的家务。片段的主题使学生联想到本课的话题。2. learn new words and phrasesLook! What is she / he dong? 看图学习动词词组do chores, do the dishes, make the bed, take out the trash, fold the clothes, do the laundry, clean the living room.3. Guessing game.What is she doing ? 4. Pair work. 1a, Do you do these things at home? Write “Y” for “yes” and “N” for “no”.5. Listening . 1b , Peter’s chores or Mom’s chores?理解目标语Could you please clean your room? Yes, sure.Write “M” for Mom’s chores, “P” for Peter’s chores in the chart.6. PairworkLook at the picture,Ask your partner to do the chores that you see. 7. Interview Who is the most able at home? 1) What chores do you do at home? How often do you do the chores? Work in four, interview each of the students in the group, fill in the chart.
Step Ⅶ Role play ( Work on 1b)1. First ask two students to read the dialogue to the class.Sa: How do you get to school?Sb: Well, I ride my bike to the subway station. Then I take the subway.2. Now work with a partner.Suppose you use two kinds of transportation to get to school \Hangzhou\Beijing... (bus, train, subway, walking, bike, etc.) Tell how you get there. You may use the phrases in 1a.3. Then ask different pairs of students to present their conversations to the class.Step ⅧListening1. Work on 2a(1) First ask students to read the list of information that Thomas wants to know.…where Nina lives.…how far from school she lives.…how long it takes to get to school.…how she gets to school.…what she thinks of the transportation.(2) Tell students what transportation and bus stop mean.bus stop 汽车站 transportation n. 运送;运输Then tell students we'll hear a recording. Please put a checkmark in front of each thing that Thomas wants to know.(3) Now play the recording for students.( Have students pay attention to the sample answer.) (4) Then correct the answers.
Teaching goals : 1. Words & phrases: babysit ,get back , fishing , rent , think about , decide(on) , tourist etc. 2. How to talk about future plans . 3. 现在进行时表示将来计划或行动. 4. 特殊疑问句(where , when , how long引导) Important and difficult points : Drills :What are you doing for vacation ? I’m watching TV . When are you going ? I’m going … . How long are you staying ? We’re staying for five days . Teaching aids : cards and a tape ,a large wall calendar . Period 1 Teaching procedures : Step 1Leading in1. Free talk . 2. Put up the wall calendar . T: I’m staying home on Saturday (pointing to next Saturday ).Ss repeat . Ss: I’m staying home on Saturday . T: OK. Today we’ll learn how to talk about future plans. Step 2Pre-task SB Page 13 , 1a . 1. Look at the picture carefully and tell what you see in the picture . 2. Write the activities from the pictures in the box and add some more . 3. Practice reading . Step 3While-task1. Using the activities we write in 1a to make conversations .For example :What are you doing for vacation ? I’m visiting my uncle . 2. Pairwork .Practice in pairs . 3. 用第三人称练习对话.
教学目标1.知识目标:(1)学习What are you going to be when you grow up?/How are you going to do that?句式。(2)学会用英语描述有关职业的表达法。2.能力目标:(1)能够谈论为实现理想所做出的打算和安排。(2)能够谈论未来自己与他人理想的职业及原因。(3)能用英语描述课余时间的活动安排,最终具备表达综合信息的能力。3.情感目标:新学期到来之际,让他们在学习、体育、饮食、特长、读书等方面制定计划,教育学生合理安排自己的课外生活,思考自己的理想职业及适合自己的职业。教学重点、难点本单元的重点为“be going to”表将来,want to be, what,where, when,how引导的特殊疑问句。难点是语言目标的实现。教材分析本单元以I am going to be a basketball player为话题,共设计了三部分的内容:一、Section A该部分有4个模块。第一模块围绕Do you think these jobs are interesting?这一话题展开思维(1a)、听力(1b)、口语(1c)训练;
1 交通工具的比较此活动为小组活动。学生通过讨论找出到达某一城市可乘坐的各种交通工具,并选择最佳出行方式。Teacher:We’re going to Shanghai. How many ways can we use to get there? Yes, there are four ways: by bus, by plane, by train, by ship. Please discuss how you are going to get there.操作建议:(1)学生以小组为单位展开活动,谈论本组所选择的交通工具。(2)各组选代表向全班汇报,阐述本组所选择的交通工具的利和弊。完成任务所需要的语言结构:We can go there by ship. It’s more comfortable and cheaper than any other transportation.We can go there by bus. It’s cheaper but it takes longer time.2 哪个城市更合适?此活动具有挑战性。假设中国要举行2014年世界杯足球赛,分别从历史,人文,天气等方面对各城市(北京,大连,上海,昆明)进行比较,选择最佳举办城市。T: Imagine China is holding the 2014 FIFA World Cup. Which city do you think is the best for the World Cup, Beijing, Dalian, Shanghai or Kunming? Let’s work in groups. If you choose Beijing, please join the Team Red. If you chose Dalian, please join the Team White. If you choose Shanghai, please join the Team Blue. If you choose Kunming, please join the Team Green. Please show us its advantages. Then let’s see which team will win.
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