人教版新目标英语七年级上册-第七单元第三课时-教学课件

Unit7

Howmucharethesesocks?SectionB1a—2c

七年级英语·上新目标[人]OnetwoThreefourFivesixSeveneightNinetenOnetwoThreefourFivesixSeveneightNinetenPutonyourshoesGotothestoreBuythesocksTaketheshirtComebackagainPutonyourshoesGotothestoreBuythesocksTaketheshirtThat’stheendLet’sChant!35125896615783482467135486920Say

the

numbers

quickly.Numbersteneleventwelvethirteenfourteenfour+teen→sixteenseventeennineteenfifteeneighteen10111213141518161719twentytwen+ty→thirtythir+ty→twenty-onetwenty-twothirty-one2030212231Listenandrepeat.听一听，读一读。111213141516171819202122232425262728293031基数词的记忆方法:1.1-12:(记住每个单词)2.13-19:-teen(thir-;fif-;eigh-)3.20-90:-ty(twen-;thir-;for-;fif-;eigh-)4.21-99:十位个位Row1:ten___eleven___twelve___thirteen___fourteen___Row2:twenty-five___twenty-six___twenty-seven___twenty-eight____twenty-nine___

Writethenumberin1anexttothecorrect

words.Whichrowsofnumbersareinthewrongplaces?10111213142526272829Row3:twenty____twenty-one____twenty-two___twenty-three___twenty-four____Row4:fifteen______sixteen______seventeen______eighteen_______nineteen_____Row5:thirty____thirty-one_______

Writethenumberin1anexttothecorrect

words.Whichrowsofnumbersareinthewrongplaces?202122232415161718193031Listenandcirclethenumbersyouhearin1a.10111213141516171819202122232425262728293031☆教材解读☆基数词表示数目的词称为基数词。其形式如下:(1)1-10one,two,three,four,five,six,seven,eight,nine,ten

(2)11-19eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen

这里除eleven,twelve,thirteen,fifteen,eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen构成。

(3)21-99整数几十中除twenty,thirty,forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。表示几十几时,在几十和个位基数词形式之间添加连词符“-”。21

twenty-one,76

seventy-six。【拓展】

基数词记忆规则歌诀:基数词不难记,找出规律很容易:零至十二形各异,加上-teen为十几,thirteen,fifteen看仔细,eighteen只有一个t;twenty却是很奇怪,forty本身也不乖,eighty一起搞例外,跟着也把规则坏;十位后面是个位,表示数字“几十几”,表示“几百几十几”,and常把百、十系。勤学妙记加练习,hundred就是你的好成绩。Listenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check(√)thethingKatebuys.

√PairworkAskandanswerquestionsaboutthethingsinthepicture.1.askirt___3.socks___5.shorts__2.asweater___4.trousers___6.shoes__Howmuchdoyouthinkthesethingscost?Matcheachclothingitemwithaprice.

bafedca.$3c.$30e.$22b.$15d.$20f.$25

sellstore

buyfromprice

Mrs.Cool’s

Clothes

StoreReadthead.

Mr.Cool’sClothesStoreComeandbuyyourclothesatourgreatsale!Wesellallourclothesatverygoodprices.Doyoulikesweaters?Wehavegreensweatersforonly$15!Yellowsweatersareonly$12!Doyouneedtrousers?Forboys,wehaveblacktrousersforonly$22.Andshortsareonly$16!Forgirls,wehaveskirtsinpurpleforonly$20.Howmuchareourjackets?Only$30!Andwehaveblackshoesforonly$28.Socksareonly$2forthreepairs!CometoMr.Cool’sClothesStorenow!They

are

only

$2

for

three

pairs.It’s

Mr.

Cool’s

Clothes

Store.It

sells

clothes

like

sweaters,trousers,shorts,skirts,jackets,shoes

and

socks.It’s

$15

for

green

ones

and

$12

for

yellow

ones.No,they

are

not.They

are

for

boys.Yes,they

do.They

are

only

$16.They

are

purple.☆教材解读☆1.ata…price的用法教材原句P41Wesellallourclothesatverygoodprices.我们出售的所有服装的价格非常合理。※ata…price意为“以……的价格”,其中介词at可理解为“以……”。price做名词,意为“价格”,可用“What’sthepriceof…?”询问某物的价格。Theysoldtheircarsatagoodprice.他们的汽车卖了一个好价钱。注意表示价格的高低用high(高的)或low(低的),而不用expensive(昂贵的)和cheap(便宜的)。expensive和cheap的主语应是“物”,表示“贵的/便宜的”。☆联想助记☆物品有贵(expensive)贱(cheap),价格有高(high)低(low)。2.for的用法教材原句P41Forgirls,wehaveskirtsinpurpleforonly$20.对于女孩子们而言,我们有紫色的裙子,仅售20美元。

※本句中出现了两个介词for,第一个for表示“就……而言”,第二个for表示“以……交换;换取”。Sheistallforherage.就她这个年龄而言,她个子算是高的。Wehaveapplesfor2dollarseachkilo.我们的苹果两美元一千克。☆考点拓展☆for的其他用法(1)表示对象,用途。

Thisbookisforchildren.这本书是儿童读物。(2)表示目的。

Heoftengoesoutforawalk.他经常出去散步。(3)表示对象。

WhatcanIdoforyou?我能为你做什么?You:Hello,_______Ihelpyou?Girl:Yes,please.Ineeda_______.You:Howaboutthesepurple______?Girl:Oh,Ilikethisone.How_____isit?You:It’sonly________dollars.Girl:Oh,good.I’ll_______it.You:Andwhatdoyouneed?Boy:Well,Ineedapairofblack_______forschool.can

skirtskirtsmuchtwentytake

shoesImagineyouworkatMr.Cool’sClothesStore.Completetheconversationandpracticeit.You:Whataboutthispair?They’re_______twenty-eight_________.Boy:Great.Anddoyouhaveshorts,too?You:Yes,ourshortsareonly______dollars.Boy:OK.I’lltakethe_____andthe

_____.only

dollarssixteen

shoesshortsImagineyouworkatMr.Cool’sClothesStore.Completetheconversationandpracticeit.ExerciseⅠ.翻译短语1.11个足球

2.14个西红柿

3.23件衬衫

4.28只红袜子

5.31顶帽子

6.30个乒乓球拍

7.15条短裤

8.12件毛衣

9.13个学生

10.18个时钟

eleven

soccer

ballsfourteen

tomatoestwenty-three

shirtstwenty-eight

red

socksthirty-one

hats

thirtyping-pong

batsfifteen

pairs

of

shortstwelve

sweatersthirteen

students

eighteen

clocksⅡ.根据汉语提示完成句子1.—Does

Mrs.Green

have

a

(服装)store?—Yes,she

does.2.I

want

to

(买)a

new

schoolbag

for

school.3.We

(卖)the

sports

shoes.4.—What’s

the

(价格)of

your

new

pencil

box?—It’s

10

yuan.5.

The

(男孩)in

a

red

hat

is

my

brother.His

name

is

Li

Wei.

6.The

sweaters

are

on

(减价).