北师大版（三起）三年级下册Unit 8 Vegetables-lesson 1 They're tomatoes-ppt课件-(含教案+素材)(编号：2000f).zip

Unit 4 At the farm Lets learn & Lets chant Do you know these vegetables? Task1: What kind of vegetables do you know? Guess: Whats this? Its red, its round, but it isnt apple. tomato Task2: 学单词学单词 tomatoes 表示蔬菜的词汇表示蔬菜的词汇 知识点知识点1 1 /tmt / n. (名词名词) 西红柿西红柿 这些西红柿是红色的。这些西红柿是红色的。 These tomatoes are red. 西红柿小外形俏，西红柿小外形俏， to左右两边挑，左右两边挑， 中间中间ma不能少。不能少。 魔法记忆魔法记忆 Do you know? They are red and round. But, apples are a kind of fruit. Tomatoes are a kind of vegetables. 学单词学单词 potato Theyre so big. es /ptet/ n. (名词名词)马铃薯；土豆马铃薯；土豆 我喜欢土豆。我喜欢土豆。 I like potatoes. potato做薯条，营养高，复数加做薯条，营养高，复数加es要记牢！要记牢！ 魔法记忆魔法记忆 ： 相关俗语：相关俗语： couch (沙发沙发) potato：很懒散的人：很懒散的人(经常经常 躺在沙发上看电视的人躺在沙发上看电视的人) small potato:不重要的人或事不重要的人或事 hot potato：棘手的问题：棘手的问题 Tomato or potato ? 学单词学单词 green bean Theyre so long. s /rin binz / n.(名词名词)豆角；豆角；四四季豆季豆 我不喜欢豆角。我不喜欢豆角。 I dont like green beans. 拼拆记忆法：拼拆记忆法：green beans =green(绿色 绿色) + beans(豆豆) 学单词学单词 carrot Theyre so big. s /krt/ n. (名词名词) 胡萝卜胡萝卜 胡萝卜是什么颜色的胡萝卜是什么颜色的? What colour is the carrot? 复数形式：复数形式：carrots 魔法记忆魔法记忆 记蔬菜单词记蔬菜单词 小小娃娃不挑食，营养全面身体好。小小娃娃不挑食，营养全面身体好。 西红柿西红柿tomato酸又甜，土豆酸又甜，土豆potato做薯条。做薯条。 green beans 脆又绿，胡萝卜脆又绿，胡萝卜carrot营养高。营养高。 多吃水果和蔬菜，科学搭配疾病少。多吃水果和蔬菜，科学搭配疾病少。 名词单数变复数规则名词单数变复数规则 规则变化规则变化 1）一般情况下加）一般情况下加-s 如book-books（书） desk-desks（书桌） 2）以）以s ,x ,ch , sh结尾加结尾加-es 如box-boxes（盒子）bus-buses(公共汽车) 注意以 th 结尾加-s, month-months stomach-stomachs 3)以辅音字母以辅音字母+结尾，变结尾，变y为为i再加再加- es 如city-cities(城市) country-countries(国家) 注意以元音+y，直接加s。如：day-days(天)， boy-boys(男孩) 名词单数变复数规则名词单数变复数规则 4)以以f或或fe结尾，复数变结尾，复数变f或或 fe 为为v再加再加-es 如knife-knives(刀) , half-halves(一半) (thief ,wife ,life ,shelf ,knife ,leaf ,self ,half ,wolf) 注意有少数词后直接加s，如roof-roofs (屋顶) 5)以以o结尾分结尾分2类类 (1)o结尾的加结尾的加-es 如tomato-tomatoes(西红杮) hero-heroes（英雄） potato-potatoes(土豆) (2) o结尾名词的加结尾名词的加-s 如piano-pianos (钢琴), zoo-zoos(动物园) photo-photos (照片), kangaroo-kangaroos(袋鼠) kilo-kilos(千克) 注意zero 两种方式都可：zero-zeros或 zeroes(零) 小小音乐家小小音乐家 同学们，你会创编新歌谣吗？用所学的词语创编一首歌同学们，你会创编新歌谣吗？用所学的词语创编一首歌 谣，然后和你的同伴一起唱一唱吧谣，然后和你的同伴一起唱一唱吧 ！ 示例：示例：(用两只老虎的曲调唱一唱用两只老虎的曲调唱一唱) Are they tomatoes? Are they tomatoes? Yes, they are. Yes, they are. I like tomatoes. I like tomatoes. Very much. Very much. Are these carrots? 这些是胡萝卜吗？这些是胡萝卜吗？知识点知识点2 2 these /iz/ pron. (代词代词) (this的复数形式的复数形式) 这些这些 这些是香蕉。这些是香蕉。 These are bananas. these的用法：用来指代的用法：用来指代近处近处的的复数复数物品。物品。 这是由这是由be动词动词are开头的一般疑问句，用来确开头的一般疑问句，用来确 认近处复数物品的名称。认近处复数物品的名称。 句型结构：句型结构：Are these +可数名词复数可数名词复数? 肯定回答：肯定回答：Yes, they are. 否定回答：否定回答：No, they arent. 考向考向 Are these? 这些是这些是吗？吗？ Are these ducks? No, they arent. Are these sheep? Yes, they are. 答语中不能再答语中不能再 用用these，要用，要用 they来指代。来指代。 What are these? 这些是什么？这些是什么？知识点知识点3 3 考向考向 含义及用法含义及用法: 此句型是由此句型是由what引导的特殊疑引导的特殊疑 问句，意为问句，意为“这些是什么？这些是什么？”，用于询问近处，用于询问近处 某些物品的名称。某些物品的名称。 答语：答语：They are +可数名词复数可数名词复数. What are these? 这些是什么？这些是什么？ They are carrots. 它们是胡萝卜。它们是胡萝卜。 一、小花匠栽花，选出单词中缺少的字母。一、小花匠栽花，选出单词中缺少的字母。 （ ） A 二、看图片，连线。二、看图片，连线。 （1） （2） A. potato B. tomato 三、看单词，选图片。三、看单词，选图片。 ( ) carrot A. B. A 本节课我们学习了以本节课我们学习了以下下知识，请同学们一定知识，请同学们一定 加强巩固，以便能和同学们进行灵活交流哦！加强巩固，以便能和同学们进行灵活交流哦！ 重点词汇：重点词汇：tomato, potato, carrot, 1 熟记本节课所学的蔬菜类词汇，能够听、熟记本节课所学的蔬菜类词汇，能够听、 说、读、写。说、读、写。 2 完成配套的课后作业，见完成配套的课后作业，见典中点典中点或课或课 后作业课件。后作业课件。They are tomatoes The teaching goal： 1.can hear and write words：tomato, green beans, potato, carrot,and their plural form. 2.can hear and read sentence：What are these? Are these.? 3.be able to read the dialogue accurately Teaching important points： 1.the sentence pattern:What are these? Are these? 2.words：tomato, cucumber, potato, onion, carrot Teaching difficult points： 1.the pronunciation of these 2.potato and tomato plural form Teaching preparation： Multimedia courseware、the word CARDS The teaching process： Step 1: Warm-up Teachers and students talk about their favourite vegetables.（I likeDo you like?） Step 2: Presentation 1.Teachers say riddles and lead students to guess what vegetables. a. They are red. They look like apples, but they arent apples. What are they? b. They are tender and green. What are they? c. They are long and orange. Rabbits like eating them. What are they? d. They are round, pink and white. What are they? e. They are brown. French fries are made of them. What are they? The students guessed right,the teacher answered:Yes,they are.And take out the corresponding word cards to learn new words. If the student guessed wrong ,the teacher answered:No,they arent. 2.After learning new words,share with your classmates the growing place and household practices of all kinds of vegetables. 3.Play dialogue:Lets talk, the students listen to the tape and read after it. 4.do dialogue exercises in groups。 Step 3: Consolidation and Practice Practice：What are these? Are these? Step 4:Homework assignments Listen to Lets talk and read to their parents.