人教英语七年级上Unit7第三课时 Section B1a-1e（精品课件）

这是一份人教英语七年级上Unit7第三课时 Section B1a-1e（精品课件），共33页。PPT课件主要包含了Warming up，ten 十，eleven 十一，twelve 十二，fifteen 十五，sixteen 十六，twenty 二十，thirty 三十，forty 四十，fifty 五十等内容，欢迎下载使用。
1. New wrds: ten, eleven, twelve, thirteen, fifteen, eighteen,twenty, thirty
2. Sentences: ① —Hw much is the green sweater? —It’s twenty dllars. ② —Hw much are they? —Only sixteen dllars.
Learning gals
Say the price f the fllwing prducts ne by ne.
A: These eggs are ne dllar.
B: These scks are tw dllars.
C: This pencil bx is three dllars.
D: This pen is fur dllars.
E: That hat is five dllars.
F: This T-shirt is six dllars.
G: These apples are seven dllars.
H: That skirt is eight dllars.
I: Thse shrts are nine dllars.
1a Listen and repeat.
1b Write the numbers in 1a next t the crrect wrds. Which rws f numbers are in the wrng places?
Rw 2 shuld be rw 4; rw 4 shuld be rw 2.
Cmpete with yur partner. Wh reads mre quickly?
thirteen 十三
seventeen 十七
eighteen 十八
nineteen 十九
从ne到twelve， 拼写和读音没有什么规律，逐一记忆；从thirteen 到nineteen, 其后均有后缀-teen。注意thirteen、 fifteen、eighteen的拼写。
twenty-ne二十一
twenty-tw二十二
twenty-three二十三
twenty-fur二十四
twenty-five二十五
twenty-six二十六
twenty-seven二十七
twenty-eight二十八
twenty-nine二十九
thirty-ne三十一
thirty-tw三十二
thirty-three三十三
thirty-fur三十四
thirty-five三十五
thirty-six三十六
thirty-seven三十七
thirty-eight三十八
thirty-nine三十九
表示“几十几”， 用“整十数+个位数”表示，中间用连字符“-”把十位数和个位数连接起来。
ne hundred 一百
从twenty到ninety，表示“整几十”，其后均有后缀-ty。但需注意以下几个词的拼写：twenty、 thirty、frty、fifty、eighty。表示“几百”，用“具体数字+hundred”，注意hundred应用单数形式。
（1）表示数量，置于名词前。（2）表示编号，置于名词后。
I have five apples. 我有五个苹果。
I'm in Class Tw, Grade Seven. 我在七年级二班。
数词是表示数量或顺序的词， 可分为基数词和序数词两种。 表示数目多少的词叫基数词， 如ne、tw、 three等。 基数词可指代或修饰可数名词。
（3）表示号码（4） 表示年龄（5） 表示时间（6） 表示计算
My phne number is 239-8271. 我的电话号码是239-8271。
My father is frty nw. 我的爸爸四十岁了。
It's eight twenty nw. 现在八点二十分。
Five and three is eight. 五加三等于八。
Hw much is this skirt?
It's ten dllars.
Make cnversatins with yur partner.
Hw much are the trusers?
They're eighteen dllars.
Hw much is this bag?
Twenty-tw dllars.
Hw much is the sweater?
Thirty-ne dllars.
Where are the peple in the picture?Can yu guess their relatinship?
Hw much are the black shes?
Hw much is the blue sweater?
Hw much are the trusers?
Hw much is the T-shirt?
Hw much is the green sweater?
1c Listen and circle the numbers yu hear in 1a.
1d Listen again. Circle the things in the picture that Kate and her mm talk abut. Check (√) the thing Kate buys.
Read the cnversatin with yur partner.
Mm: Oh, lk! I like that blue sweater. Hw much is it?Kate: Fifteen dllars. Oh, I like these scks.Mm: Oh, n. I dn’t like red.Kate: D yu like this T-shirt?Mm: Mmm, yes, I d, but it’s eleven dllars.Kate: Oh. Hw much is the green sweater?
Mm: It’s twenty dllars. But yu have a green sweater.Kate: Mmm. Mm: Oh, d yu like these trusers?Kate: Oh, yes. Hw much are they?Mm: Only sixteen dllars.Kate: OK, I’ll take them.
1e Ask and answer questins abut the things in the picture.
A: Hw much is the white bag?B: It's seventeen dllars.
一、用英文快速说出你看到的数字
11个篮球 __________________________14个西红柿 ________________________23件衬衫 __________________________28只红袜子 ________________________35顶帽子 __________________________
eleven basketballs furteen tmatestwenty-three shirts twenty-eight red scks thirty-five hats
A: ________________________B: Yes, please. I _________ a hat.A: ___________________________B: Black.A: Here yu are.B: ____________________A: 5 dllars.B: I’ll take it. Thanks.A: _______________________
Can I help yu?
What clr d yu want?
Hw much is it?
Yu’re welcme.
ten, eleven, twelve, thirteen, fifteen, eighteen, twenty, thirty
①—Hw much is the green sweater? —It’s twenty dllars.②—Hw much are they? —Only sixteen dllars.