(
课件网) n. 计算机/电脑 n. 家具 n. 地图 n. 图片/照片 n. 电视/电视机 n. 墙 num. 三十 num. 四十 computer furniture map picture television wall thirty forty Words and expressions fifty sixty seventy eighty ninety really many how many num. 五十 num. 六十 num. 七十 num. 八十 num. 九十 adv. 真正地 adj. 许多 多少 Words and expressions there lot a lot of oh any world tree pron. (引导主语) n. 大量/ 许多 大量/很多 int. 唉/噢 adj./pron. 任何/一些 n. 世界 n. 树（木） Words and expressions thirty ninety sixty seventy eighty forty fifty map computer television picture furniture Can you speak them in English? Where can you see them? 1 Look at the pictures and talk about them. blackboard book classroom computer desk furniture map picture television wall 2 Listen and choose the correct picture in Activity 1. 20 twenty 30 thirty? 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 ninety √ Betty: Look at this picture, Lingling. This is my classroom. It’s not big. There are 30 students in my class. Sixteen are girls and 14 are boys. There are 30 desks in the classroom and there are some books on the desks. On the teacher’s desk there’s a computer. There’s also a television, but there isn’t a map on the wall. 1—12 无规律可循，应逐一记忆。 13—19 一般在个位数后加?teen，应注意thirteen，fifteen和eighteen的拼写。 20，30... (整十) 整数几十，twenty，thirty，forty，fifty，eighty为特殊形式，sixty，seventy，ninety 直接在个位后加?ty 。 21—99 整十加个位数，表示几十几时，中间用连字符“?”连接 100 one hundred 考向【重点】 表示数目的词为基数词。基数词1－100的表达法： 知识点 1 thirty/'θ??ti/ num.三十 eg：There are thirty boys in our class. 我们班有30个男生。 魔法记忆 100以内的基数词 基数词不难记，找清规律很容易。 十二以内词各异； 十三数到十九时，后有?teen莫忘记； 二十，三十……至九十，后有?ty要牢记； 要说“几十几”，中间“?”号别丢弃； hundred是“百”，请你记住莫大意。 我们的教室里有四十五张书桌。 There are _____ desks in our classroom. 典例 forty?five 【点拨】“四十五”应用“整十加个位数”结构，并用“?”连接，故填forty?five。 1. In Linda’ school there are students in a class. A. 30 B. 46 2. In Daming’s class there are girls. A. 25 B. 20 3. There a computer on Linda’s teacher’s desk. A. is B. isn’t 4. Are there any pictures in Daming’s classroom? A. Yes, there are. B. No, there aren’t. 5. Are there a map of the world in Linda’s classroom? A. Yes, there are. B. No, there isn’t. √ √ √ √ √ Daming：Linda, what’s your classroom in England like？?Is it big? Linda：Yes, it’s really? big. There are thirty students in my class.? How many students are there in your class in Beijing？? Daming：There are forty students, twenty girls and twenty boys. What’s in your classroom? Is there a lot of ? furniture？? Linda：Yes, there is. Daming：Are there computers on everyone’s desk? Linda：No, there aren’t. But there is a computer on the teacher’s desk. Daming：Oh, are there any? pictures on the cla ... ...
