初中英语牛津版 (深圳&广州)八年级上册（2013秋审查）Unit 2 Numbers精品教学课件ppt

这是一份初中英语牛津版 (深圳&广州)八年级上册（2013秋审查）Unit 2 Numbers精品教学课件ppt，共25页。PPT课件主要包含了课堂导入，课堂活动，thousand，million，and， 数词概述，两位数以内的基数词，几十几的基数词，三位数的基数词，千百万亿等内容，欢迎下载使用。

请用英语朗读下面的数字。
1. (1) 0.03 (2) 1.75 (3) 23.482. (1) 4% (2) 94%3. (1) 20 July, 1998 (2) Oct. 1st, 20194. (1) 7:15 (2) 9:30 (3) 10:455. (1) 639 148 (2) 945 8204 (3) 7339 2318
3 three 13 thirteen 20 twenty 70 seventy11 eleven 15 fifteen 30 thirty 82 eight-tw12 twelve 18 eighteen 50 fifty 98 ninety-eight
100 ne hundred200 tw hundred375 three hundred and seventy-five
A Cardinal and rdinal numbers
We use cardinal numbers t cunt things.
1,000 ne thusand4,189 fur thusand ne hundred and eighty-nine15,362 fifteen thusand three hundred and sixty-tw100,000 ne hundred thunsand285,643 tw hundred and eight-five thusand six hundred and frty-three
1,000,000 ne millin3,367,982 three millin three hundred and sixty-seven thusand nine hundred and eighty-tw
In the cardinal numbers, we d nt add-s t hundred, __________and__________. With large numbers, we put _________ between hundred and ten.
Wrk ut the rule
★ 数词的定义 表示数目多少或顺序先后的词叫数词。★ 数词的分类： 数词分为基数词和序数词。★ 基数词作用：表示数目或数量多少。★ 序数词作用：表示顺序和等级。★ 数词在句中的成分： 可作主语、宾语、表语、定语和同位语等。
★ 1-12 的基数词：ne, tw, three, fur, five, six, seven, eight, nine, ten, eleven, twelve.★ 13-19 的基数词：以-teen结尾。thirteen, furteen, fifteen, sixteen, seventeen, eighteen, nineteen.
★ 20-90的整十数基数词的表示方法：均以 -ty 结尾.twenty, thirty, frty, fifty, sixty, seventy, eighty, ninety.★ 几十几的基数词：十位数与个位数之间要用连字符“-”连接.例如：85— eighty-five 28—twenty-eight
★ 三位数的基数词：在百位和十位（若无十位则和个位）之间用and连接。如：148—ne hundred and frty-eight, 206—tw hundred and six★ 多位数的表示方法：从个位开始三个化为一级，分为个级，千级，百万级和十亿级，读的时候从高位开始按照三位数的读法读出再加上表示级别的词。如: 31,415,923读作：thirty-ne millin fur hundred and fifteen thusand nine hundred and twenty-three
【Things t remember】hundred(百）thusand(千），millin(百万），billin（十亿）前面有数词时后面不加s.Fr example:5000—five thusand 表示不确定的数目时后面加s,再加单词f.Fr example:hundreds f 成百上千 thusands f 成千上万
★ 基数词的写法1）每三位数算一个单位，三个0为千，六个0为百万，9个0为十亿。2）长的基数词则要用逗号，从右向左三位三位地分开。写出下面数字：1. three thusand eight hundred and sixty-tw2. . fur hundred and eighty-nine thusand, nine hundred and thirty-tw
We use rdinal numbers t shw the rder f things.
1st first 7th seventh 13th thirteenth 19th nineteenth2nd secnd 8th eighth 14th furteenth 20th twentieth3rd third 9th ninth 15th fifteenth 21st twenty-first4th furth 10th tenth 16th sixteenth 33rd thirty-third5th fifth 11th eleventh 17th seventeenth 40th frtieth6th sixth 12th twelfth 18th eighteenth 100th hundredth
We frm mst rdinal numbers by adding ________t the cardinal numbers. There are exceptins, like first, secnd and third.
The students are standing in a line. They each have a number (frm 1 t 28). Fill in the blanks with cardinal numbers n the left and rdinal numbers n the right.
twenty-third
twenty-eighth
add … and …
subtract … frm …
multiply … by…
divide … by …
B Instructins abut numbers
Add 3 and 9. (3+9)Subtract 3 frm 9. (9-3) Multiply 3 by 9. (3x9)Divide 9 by 3. (9÷3)
3 plus 9 equals/is12. (3+9=12)9 minus 3 equals/is 6. (9-3=6 )3 multiplied by 9 equals/is 27. (3x9=27)9 divided by 3 equals/is 3. (9÷3=3)
Things t remember
Plus and minus are prepsitins.
Read the statements alud.
2 × 10 = 20
2 plus 10 equals/is 12.
10 minus 2 equals/is 8.
2 multiplied by 10 equals/is 20.
10 divided by 2 equals/is 5.
1 S1: A 11 _____ 1. S2: p equals/is . ( )2 S1: S__________ 5 __________ 13. S2: _____ m_____ ______ equals/is ___. ( )3 S1: M__________ 7 _____8. S2: _____m_________by_____ equals/is____. ( )
In pairs, cmplete the sentences like thse in Table I and Table II.
4 S1: D_________ 16 ____ 4. S2: ____d _______ by ____ equals / is ____. ( )5 S1: A ____ 9 ______6. S2: ____ p ____ _____ equals / is ____.( )6 S1: A______14 and 4 and d_____ the answer by 2. S2:_______ p____ ____ and d_____ the answer by ______ equals / is ______.( )
(14+4) ÷2= 9
1, We have learned hw t use cardinal and rdinal numbers.2, We have learned hw t give instructins abut numbers.
1（2019，山东滨州卷）—Which mnth f the year d yu like best? —July, the _________ mnth, because summer vacatin begin in this mnth.sevenB. sixC. seventh D. sixth2（2019，广东卷) We are prud f ur cuntry. The year 2019 is her ____ birthday. A. seventyB. the seventy C. the seventieth D. seventieth
（2018·广东中考）3 Please turn t page ______ and take a lk at the picture n it.A. the eightieth B. eightieth C. eighties D. eighty （2018·重庆中考）4,Meimei is ging t be an lder sister. Her parents are planning t have their _______ child. A. neB. tw C. first D. secnd （2017·滨州中考）5.— What d yu think f the envirnment here?— Wnderful! ______ f the land ______ cvered with trees and grass． A．Tw fifths; is B．Tw fifth; isC．Tw fifths; are D．Tw fifth; are
二、根据句意，填入适当的数词Thursday is the ______ day f a week in the West.2. Autumn is the ______ seasn f a year.3. Christmas is n December the __________ each year.4. August is the _________ mnth in a year.5. June the ______ is Children’s Day.
twenty-fifth
三、用括号内所给单词的正确形式填空。1. This is his __________(thirty) nvel.2. This happened at the beginning f the __________(twenty-ne) century.3. Mther’s Day is n the __________ (tw) Sunday in May.4. Althugh he gt the _______ (fur) place in the cmpetitin, that was gd enugh fr him.5. Tmrrw is my grandmther’s __________ (eighty-nine) birthday. We will have a big party fr her.
twenty-first
eighty-ninth