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人教版（PEP）小学英语三年级下册第一单元Unit1WelcomebacktoschoolUnit 1: Welcome back to school1. Vocabulary- school 学校- classroom 教室- teacher 老师- student 学生- desk 课桌- chair 椅子- book 书- crayons 蜡笔- pencil 铅笔- ruler 尺子- backpack 书包- schoolbag 书包- blackboard 黑板- eraser 橡皮擦- chalk 粉笔- window 窗户- door 门2. Dialogue(A: Ann, B: Ben, T: Teacher)A: Welcome back to school, Ben!B: Thank you, Ann!A: Are you excited to see our new classroom?B: Yes, I can't wait to see it!T: Good morning, everyone! Welcome back to school. Please find your seat.B: My seat is next to the window, right?T: Yes, that's right. Now take out your books.B: Here is my book, teacher.T: Very good. Now let's start the lesson.3. Grammar - Present Simple Tense- The Present Simple tense is used to talk about facts, habits, and repeated actions. - It is formed with the base form of the verb for all persons except third person singular, which adds 's' to the end of the verb. For example: I play, you play, heplays.- The negative form is made by adding 'do not' or 'does not' before the base form of the verb. For example: I do not play, he does not play.- The question form is made by adding 'do' or 'does' at the beginning of the sentence. For example: Do you play? Does he play?。
Unit1 知识详解A Let’s talk 知识详解重难点1.如何介绍自己来自哪里—I’m from ...课文应用：I’m from the UK. 我来自英国。
句型结构：I’m from + 地点.重点解析：此句型用于介绍自己来自哪里。
I’m是I am的缩写形式。
from后可接国名或地名。
此句型可用作“Where are you from?”的答语。
易错提示：这个句型中不要丢掉I后面的am，I am一般缩写为I’m。
生活实例：Mingming的班级来了一位外籍女教师，她是怎样向同学们介绍自己来自哪里的呢？让我们来看一看：Teacher: I’m Miss Green.I’m from the UK.我是格林老师。
我来自英国。
知识拓展：“来自……”的其他表达方式：come from也可以表示“来自……”。
例如：I come from China. 我来自中国。
2.热情的“welcome”课文应用：Welcome! 欢迎！welcome是个热情好客的小家伙，每当有朋友来到家里或学校时，它就会热情地欢迎。
有了它的帮助，我们就能表达欢迎了，快让我们和它交个朋友吧！如果你只是要对别人表示欢迎或用在标语、口号中，我们只需要简单地使用“Welcome!”就可以了。
例如：Welcome! Come in and meet my parents.欢迎！进来见见我的父母。
下面再教给大家几个简单的关于welcome的句子，大家都来表达自己的热情吧！例如：Welcome back (to school)! 欢迎回（到学校）来！Welcome to China! 欢迎来中国！A Let’s talk 知识详解拓展点1.如何表达“我们拥有……”—— We have ...课文应用：Boys and girls, we have two new friends today. 孩子们，今天我们有两位新朋友。
句型结构：We have + 名词(如: two friends, a new toy ...).重点解析：此句型用于表达“我们拥有……”，动词have意为“有；拥有”。
