Section A （Grammar Focus3c）,Unit 7 How much are these socks?,语法聚焦,基数词 英语中数词分为基数词和序数词。基数词是表示数目或数量的多少。 1. 基数词的表达 (1)onetwelve，无规律，应逐一记忆。 (2)thirteennineteen，表示“十几”，在个位数后面加后缀teen。但要注意下面几个词的拼写：thirteen（13），fifteen（15），eighteen（18）。,(3)twentyninety，表示“几十”，以ty结尾，但要注意下面几个词的拼写：twenty（20），thirty（30），forty（40），fifty（50），eighty（80）。 (4)“几十几”的表达法：用整十数加个位数表示，中间用连字符“”连接。如：twentyeight（28），thirtyfive（35）。 (5)一百的表示法为one hundred或a hundred。要表示“几百”，用具体数字加上hundred，如two hundred两百，注意此时的hundred是单数形式。表示“几百几”时，要在百位数和十位数（或个位数）之间加and。如：three hundred and fifteen（315）。,2. 基数词的用法 (1)表示年龄，基数词放在years old之前。如： He is twelve years old. 他十二岁。 (2)用来表示人或物的数量，放在名词之前。如： I have three balls. 我有三个球。 (3)表示顺序、编号等，放在名词之后。如： Im in Class Four. 我在四班。 (4)用来计算。如： Two and six is eight. 二加六等于八。 Whats forty and twenty? 40加20等于多少？ Its sixty. 等于60。 (5)基数词作主语时，谓语动词用单数形式。如： Six and ninety is ninety-six. 6加90等于96。,口语无忧,本单元的主要话题是“询问价格；谈论衣物；提供帮助；感谢他人”。这些话题在实际生活中很常用，在中考中也占好几个考点。现在，就让我们一起围绕这些话题进行口语练习吧！,话题七 询问价格；谈论衣物；提供帮助；感谢他人 1. 相关词汇（请大声朗读以下词汇，看谁读得更标准地道） socks, T-shirt, shorts, sweater, trousers, shoes, skirt, dollar, big, small, long, short, need, look, Can I help you? Yes, please. No, thanks. how much, a pair of, It looks great. Ill take it/them. Here you are. Youre welcome. 2.你问我答 A. 请运用下列句子与你的同伴进行互问互答。 1. Can I help you? Yes, please. How much is the sweater?,2. The big one is 20 dollars. The small one is 15 dollars. I see. How much are the socks? 3. Theyre two dollars. What color do you want? What color do you have? 4. We have red ones and yellow ones. Great！Red looks nice. Ill take the red ones. 5. Here you are. Thank you. Youre welcome.,B. 现在，将以上对话中的画线部分用其他词汇或句子替代，如将the sweater改为the T-shirt， the big one is 20 dollars改为the long one is 20 yuan，然后进行更有创意的问答练习（非画线处也可以根据你们设置的情景灵活改编）。 3. 情景说话现在将你和同桌的课桌纵向并起来，将椅子放在课桌下面。各自拿出你们事先准备好的物品（如帽子、袜子、围巾、笔记本等）和标价，各自将物品错落有致地摆在课桌上，并将相应的标价挂上去。好，可以跟你的同桌一起玩店员和顾客对话游戏了（交替玩，两人轮流做店员和顾客）：,Note: Shop Assistant=SA（店员）;Customer=C（顾客） SA: Good morning. Can I help you？ C: Morning. Yes, please. I need a pen for school. SA: OK. What color do you want? C: Black. SA: What about that one? C: It looks nice. How much is it? SA: 10 yuan. C: Wow, its so dear（贵的）. How much is the pencil? SA: Its 2 yuan. Do you like the green one?,C: I think Ill take a blue one. How much are the socks? SA: 10 yuan for 3 pairs and 4 yuan for 1 pair. C: Nice. So Ill take a blue pencil and 3 pairs of socks. SA: OK. Here you are. C: Thanks very much. SA:Youre welcome.,课堂练习,一、用Its或Theyre填空 1. How much are these green bags? _ $20. 2. How much are these red shoes? _ $30. 3. How much is this tape player? _ $60. 4. How much is the ice-cream? _ $2. 5. How much are these apples? _ $10.,Theyre,Theyre,Its,Its,Theyre,二、根据对话内容，从方框中选出恰当的选项补全对话 A. And it is only 20 dollars. B. Sorry, we only have these yellow T-shirts. C. What color does your father like? D. Yes, please. E. Yellow T-shirts are here. A: Can I help you? B: 1._ I want to buy a T-shirt for my father. A: We have many T-shirts. 2._ B: Yellow. A: OK. 3._,D,C,E,B: Well, these T-shirts are too big. A: 4._ But we have small blue T-shirts. B: Blue is OK. Oh, this one is nice. A: Yes. 5._ B: Great! Ill take it. 三、根据实际情况和所提供的情景完成对话 1. 你去服装店想买一件T恤衫，售货员问“Can I help you?”，你应该这样回答： _ 2. 你想问售货员服装店里的那件红色毛衣多少钱，你应该问： _,B,A,Yes, please. I want a T-shirt.,How much is the red sweater?,