unit7第4课时sectionb（1a-1e）【精讲课件】-课堂（人教版）

SectionB1a-1eUnit7Howmucharethesesocks？LearningAims1）Tolearntocountthenumbersover10andfindouttherules.2）Learntoknowandusemorenumbersinourdailylife.3）Usethenumbersfreelyintherealsituationandspendmoneyinawisewayandsavemoney.onetwothreefourfivesixseveneightninetenCanyoureadthenumbers?Presentation171215161318141119Let'slearnmorenumbers:eleventwelveseventeenfourteenfifteensixteennineteeneighteenthirteen10ten从one到twelve，拼写和读音没有什么规律，逐一记忆；从thirteen到nineteen,表示“十几”，其后均有后缀-teen。注意thirteen,fifteen,eighteen的拼写。Numbersteneleventwelvethirteenfourteenfour+teen→16sixteen17seventeen19nineteenfifteeneighteenPresentation21242322thirty25twenty-sixtwenty-seventwenty-eighttwenty-ninetwenty-onetwenty-twotwenty-threetwenty-fourtwenty-five3026272928thirty-one31twenty20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。Presentationtwenty

二十thirty

三十forty

四十fifty

五十sixty

六十seventy

七十eighty

八十ninety

九十onehundred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,forty,fifty,eighty。表示“几百”，用“具体数字+hundred”，注意hundred应用单数形式。twentytwen+ty→thirtythir+ty→40forty50fifty60sixtytwenty-onethirty-twosixty-seven10111213141516171819202122232425262728293031NewlessonNumbersWhile-listening1aListenandrepeat.10111213141516171819202122232425262728293031Canyousolvetheseproblems?你们会做下列问题吗?eight+nine=_________.three+twelve=________.sixteen+thirteen=__________.thirty–fourteen=_________twenty-six–eighteen=_______.seventeenfifteentwenty-ninesixteeneight14个西红柿27件衬衫35只红袜子63个学生fourteentomatoestwenty-sevenshirtsthirty-fiveredsocks.sixty-threestudentsTranslateandwritethemdown.1.-这双红色的袜子多少钱？

-12美元。2.-那件毛衣多少钱？

-26美元。

Howmucharetheredsocks?

They’retwelvedollars.

Howmuchisthatsweater?

It’stwenty-sixdollars.Post-listening1bWritethenumbersin1anexttothecorrectwords.Whichrowsofnumbersareinthewrongplaces?ten___twenty-five___twenty___fifteen___thirty___eleven___twenty-six___twenty-one___sixteen___thirty-one___twelve___twenty-seven___twenty-two___seventeen___thirteen___twenty-eight___twenty-three___eighteen___fourteen___twenty-nine___twenty-four___nineteen___10111213142526272829202122232415161718193031Row2shouldberow4;row4shouldberow2.Listenandcirclethenumbersyouhearin1a.1c10111213141516171819202122232425262728293031Canyousolvetheseproblems?eight+nine=_________.three+twelve=________.sixteen+thirteen=__________.eleven+seven=_________.nineteen+zero=__________.thirty–fourteen=_________.twenty-one–ten=_________.twenty-six–eighteen=_______.nine–eight=_____.thirty-five–twenty=_______.seventeenfifteentwenty-nineeighteennineteensixteeneleveneightonefifteenListenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check(√)thethingKatebuys.

1d√Mom:Oh,look!Ilikethatbluesweater.How

much

isit?Kate:Fifteendollars.Oh,Ilikethese

socks

.Mom:Oh,no.Idon’tlike

red

.Kate:Doyoulikethis

T-shirt

?Mom:Mmm,yes,Ido,

butit’s

eleven

dollars.Kate:Oh.Howmuchisthegreen

sweater

?

Mom:It’stwentydollars.Butyouhaveagreensweater.Kate:Mmm.Mom:Oh,doyoulikethesetrousers?Kate:Oh,yes.Howmucharethey？

Mom:onlysixteendollars.

Kate:Ok,I’lltakethem.Howmuchisthewhitebag?It’sseventeendollars.1ePairworkAskandanswerquestionsaboutthethingsinthepicturein1d.A:HowmuchisthewhiteT-shirt?B:It's11dollars.Howmuchis

the/this/that…?单数物品It’s....Howmucharethe/these/those…?复数物品They’re….巩固练习汉翻英：10个棒球：tenbaseballs13个西红柿：thirteentomatoes25顶帽子：twenty-fivehats33件毛衣

：thirty-threesweaters英译汉：elevenrulers:11把直尺twenty-eightbasketballs:28个篮球thirtypencils:30支铅笔thirty-ninebooks:39本书＄15＄18＄30＄11￥29OnSale!Pairwork:Shoppingtime!购物时间到！Go!Go!Go!同学们现场进行实物销售实践！基数词的表示方法1.英语中，表示数量的词叫基数词。2.one~twelve(1-12)的拼写和读音各不相同，无规律可循，应逐一记忆。3.thirteen~nineteen(13-19)表示“十几”，在个位数词后加后缀-teen,读作[ti:n]，单词有两个重音。还要注意thirteen(13)、fifteen(15)和eighteen(18)在拼写上的差别之处。Language

points4.twenty~ninety(20-90)表示“几十”，几十的整十位数是在个位数后加后缀-ty,读[ti]。但要注意加了-ty之后，个位数上的听定就有变化。eg：twenty(20),thirty(30),forty(40),fifty(50)...5.21-29直到91-99表示“几十几”，用整数十位数加个位数，中间用连字符“-”把整十位数加个位数，中间用连字符“-”把整十位数和个位数连起来。eg：twenty-three(23);thirty-seven(37);forty-five(45);fifty-two(52);sixty-one(61);

seventy-three(73);eighty-four(84);ninety-nine(99).6.onehundred“一百”，表示“一百”用ahundred。要表示200-900，用“数词（two至nine）+hundred”构成。在此结构中，无论“几百”，hundred都不能加-s变复数形式。7.hundredsof+复数名词或代词宾格是固定结构，表示“数以百计的”、“成千上万的”，是个模糊数字，不是具体数字。在此结构中，hundredsof前面不能加数词，hundredsof后面只能用复数名词或复数代词宾格形式。eg：hundredsofteachers成百上千的教师

hundredsofthem他/她/它们中数以百计的（人和物）1)表示数量，置于名词前。2)表示编号，置于名词后。名词和基数词首字母通常大写。Ihavefiveapples.我有五个苹果。I'minClassTwo,GradeSeven.我在七年级二班。基数词的用法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one,two,three等。基数词可指代或修饰可数名词。Languagepoints3)表示号码。4)表示年龄。5)表示时间。6)表示计算。我的电话号码是。Myfatherisfortynow.我的爸爸四十岁了。It'seighttwentynow.现在是八点二十分。Fiveandthreeiseight.五加三等于八。Languagepoints数词“几十几”

(1)表达“几十几”用:

“几十”+连字符“-”+“几”37→thirty-seven;

98→ninety-eight(2)“几十几”是一个单词,不能漏掉连字符。shoppingDemonstratives（指示词）PricesStructures（句型）ColorsClothesthe,this,that,these,thosebig-smalllong-shortyuan,dollar(s)numbersblack,white,green,red,blue,yellow,purple,brownT-shirt,sweater,skirt,hat,jacket,socks,shorts,shoes,trousersA:HowmuchisthisshortredT-shirt？B:It’ssevenyuan.A:Howmucharethoseblackshoes?B:They’reninedollars.Sizes(大小)我都学会了!本课句型Summary一、WritethenumbersinEnglish．1.Myuncleis____________(25)yearsold．2.--Howmuchisthishat?--It’s_________(11)dollars．3.Myteacherisonly__________(22)yearsold．4.Theyhave_______(12)balls．5._______(15)and_________(13)is____________(28)．twenty-fiveeleventwenty-twotwelveFifteenthirteentwenty-eightExercises二、选择填空。1.–________istheTV?–It’s2000yuan.A.Howmany

B.Howmuch C.Howabout2.–Jim’s_______isred.A.shoes B.bag C.socks BB3.–Howmucharethetrousers?–________twentydollars. A.IthasB.Itis C.Theyare4.–Aretheseyourshoes?–Yes,___________.A.itis B.theyare C.theseare DB三、根据要求完成句子。1.Thisbagisthreedollars.(就划线部分提问)____________isthisbag?2.Howmucharetheseblackshoes?(回答)_________fourdollars.3.Iwantgreen.(变成what问句)____________doyouwa