Unit 1 Topic 3 Section B 课件 2022-2023学年仁爱科普版七年级英语上册

Topic 3 How old are you? Section B Unit 1 Making New Friends Learning aims 掌握新单词 a/an, spell, can, please 2. 学会句式 What’s this/that in English? It’s a/an … How do you spell it? / Can you spell it? Is this/that a/an …? Yes, it is. / No, it isn’t. A: Hello, I am Kangkang. What’s your name? B: My name is Lily. A: How old are you? B: I am thirteen. A: What class are you in? B: I am in Class Three, Grade Seven. A: Who’s that ? B: That’s Maria. Let’s review. What’s this? It’s a pen. a TV. a CD. a map. a book. What’s this? It’s an eraser. an apple. an egg. an orange. The difference between “a” and “an”. Do you know it？ What’s this? It’s a pen. /pen/ a TV. /ti:ˈvi:/ a CD. /si:ˈdi:/ a map. /mæp/ a book. /bu:k/ 你 能 找 到 规 律 吗 What’s this? It’s an eraser. /ɪˈreɪsər/ an apple. /ˈæpl/ an egg. /eg/ an orange. /ˈɔrɪndʒ/ “a”&“an”区别 a/an 不定冠词(art.)，都表数量—用在单数可数名词之前 a/an用法的区别：看发音 1. a 用在以辅音音素开头的单词或字母前。 例如：a book， a desk 2. an 用在以元音音素开头的单词或字母前。 例如：an egg， an apple， an “I” 偷懒记： a用在辅音之前 an用在元音（a, e, i, o及个别u）之前 What should we use, a or an? pencil desk orange S boy apple umbrella B a a a a an an an an Section B Look, listen and say. Excuse me, what’s this in English? It’s an eraser. （视频P19-1a） map desk pen pencil eraser A: What’s this in English? B: It’s a pen. A: How do you spell it? B: P-E-N, pen. A: Thank you. B: That’s OK. A: What’s that in English? B: It’s a toy. A: Can you spell it, please? B: Yes. T-O-Y, toy. A: Thanks. B: You’re welcome. book How do you spell it? What’s that in English? It’s ________. B-O-O-K, _______. a book A: What’s this in English? B: It’s A: How do you spell it? B: an egg. E-G-G, egg. a pencil-box. P-E-N-C-I-L-B-O-X, pencil-box. a book. B-O-O-K, book . an eraser. E-R-A-S-E-R, eraser. a ruler.