Unit7SectionB（1a-1e）課件人教版七年級(jí)英語(yǔ)上冊(cè)

Howmucharethesesocks?SectionB1a-1e—Howmuchisthis…?—It’s…dollars.—It’s$3.—It’s$7.—Pleasedown.—It’s$4.—Youaregreat.—Pleaseup.Youonlyhave3guesses.($2-$8)GuessthepriceLet'sguess($20-$25)($15-$20)($10-$15)—Howmuchisthis…?—It’s…dollars.$18—Howmucharethese…?—They’re…dollars.$23$2$14($1-$5)$11($7-$12)10111213141516171819teneleventwelve-teen20212223242526272829-tytwenty-onetwenty-two...303132...-tythirty-onethirty-two......onetwothreefourfivesixseveneightnineten

eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentythirtyfortyfiftysixtyseventyeightyninetytwenty-one…twenty-ninethirty-one…thirty-nineforty-one…forty-ninefifty-one…fifty-ninesixty-one…sixty-nineseventy-one…seventy-nineeighty-one…eighty-nineninety-one…ninety-ninehundredLearnthesenumbersandfindouttherules:掌握基數(shù)詞的拼寫。ReviewTrytomakeconversationsaccordingtothepictures.Howmuchisthis…?It’s…dollars.Howmucharethese…?They’re…dollars.$22$12$11$20$14$18$6$16NumberGame1$38--$43$40$27$23--$30$10--$17$13$91$86--$94NumberGame23811eightsevenfifteenfifteenfivetwenty34628thirty-onesixtwenty-fivetwenty-twofoureighteen基數(shù)詞的表達(dá)法分類表達(dá)法示例1-12拼音和讀寫沒(méi)有什么相似之處，無(wú)規(guī)律可循One,two,three13-19在相應(yīng)的個(gè)數(shù)后加-teen（13,

15,18較特殊）Thirteen,fourteen,fifteen,sixteen,seventeen,eighteen20-90整十?dāng)?shù)在相應(yīng)的個(gè)數(shù)后加-ty（20,30,40,50,80較特殊）Twenty,thirty,forty,fifty,eighty1-99非整十?dāng)?shù)整十?dāng)?shù)+連字符+個(gè)位數(shù)Twenty-one,thirty-two,forty-threeDiscussion討論:基數(shù)詞的構(gòu)成規(guī)律(1)0～12這十三個(gè)數(shù)字要單獨(dú)記憶。(2)13～19都是以“個(gè)位數(shù)字＋

”構(gòu)成，并且重音都在

____

上。同時(shí)我們還要注意thirteen（13）,fifteen（15）,eighteen（18）這三個(gè)數(shù)字的拼寫。

(3)20，30……90都是以“個(gè)位數(shù)字＋

”構(gòu)成，但應(yīng)注意

（20），

（30），

（40）______

（50），

(80）這幾個(gè)數(shù)字的特殊性。4）20以上兩位數(shù)的基數(shù)詞，十位數(shù)與個(gè)位數(shù)之間用符號(hào)“

”連接。如：thirty-two（32），forty-four（44），fifty-five（55）等。teenteentytwentythirtyfortyfiftyeighty-1a.Listenandrepeat.

聽(tīng)錄音并跟讀。101112131415161718192021222324252627282930311b.Writethenumbersin1anexttothecorrectwords.Whichrowsofnumbersareinthewrongplaces.

將1a中的數(shù)字寫在對(duì)應(yīng)的單詞后。哪幾行數(shù)字的順序不對(duì)？ten____eleven____twelve_____thirteen____fourteen____twenty-five____twenty-six____twenty-seven____twenty-eight____twenty-nine____twenty____twenty-one____twenty-two____twenty-three____twenty-four____fifteen______sixteen_____seventeen______eighteen_______nineteen_____thirty_____thirty-one_______17181930312415162021222326272829131425101112?and/plus?minus?timesFiveandsixis

.

Eightplusnineis

.

Eightplus

sevenis

.Twenty-threetimestwois

.elevenseventeenfifteenfourty-sixWorkinpairs.Howmuchisthe______?It’s__________.$15jacket15dollarsHowmucharethe______?They’re__________.$29shoes29dollars1c.Listenandcirclethenumbersyouhearin1a.

聽(tīng)錄音，在1a中圈出所聽(tīng)到的數(shù)字。101112131415161718192021222324252627282930311.Howmany(多少)numbersdoyouhear?Whatarethey?(小組競(jìng)賽：你能做出這些數(shù)學(xué)題嗎?)1.Oneandtwois________.2.Elevenandtwenty-fouris_________.3.Forty-fiveplusfiveis_______.4.Eightminusthreeis_______.threethirty-fivefiftyfiveCanyoudealwiththesemathproblems?5.Sixty-twominustenis__________.6.Multiplyfivebynineis__________.7.Eightdivided

bytwois___________.fifty-twoforty-fivefour計(jì)算：

加and/plus減minus

乘multiply…by…除…divideby…1d.Listenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.CheckthethingsKatebuys.

再聽(tīng)一遍錄音，在圖中圈出凱特和媽媽談到的物品，在凱特購(gòu)買的物品上打鉤。

Theytalkaboutthe,,,,and.AndKatebuys

.

.bluesweatertheredsockstheT-shirtthegreensweaterthetrousersthetrousersMom:Oh,look!Ilikethatbluesweater.Howmuchisit?Kate:Fifteendollars.Oh,Ilikethesesocks.Mom:Oh,no.Idon’tlikered.Kate:DoyoulikethisT-shirt?Mom:Mmm,yes.Ido,butit’selevendollars.Kate:Oh.Howmuchisthegreensweater?Mom:It’stwentydollars.Butyouhaveagreensweater.Kate:Mmm.Mom:Oh,doyoulikethesetrousers?Kate:Oh,yes.Howmucharethey?Mom:

Onlysixteendollars.Kate:OK,I'lltakethem.ListenandrepeatMomdoesn'tlikethecolorofred.TheT-shirtistooexpensive.Youalready(已經(jīng))haveoneandyoudon'tneedit.Thetrousersareatagood(實(shí)惠的)price!1e.

Askandanswerquestionsaboutthethingsin1b.Howmuchisthewhitebag?It’sseventeendollars.Howmucharethebluetrousers?Theyare16dollars.Summaryten,eleven,twelve,thirteen,fifteen,eighteen,twenty,thirty—Howmuchisthegreensweater?—It’stwentydollars.

基數(shù)詞的構(gòu)成和用法—Howmucharethey?—(They’re)Onlysixteendollars.SentencesGrammarKeywords$11$15$20$30$21$19Howmuchis/arethe/this/that...?It's/Theyare...dollars.PairWorkCanIhelpyou?/WhatcanIdoforyou?Yes,please.Iwant/need...

Whatcolordoyouwant?

Idon'tlikethecolor.Doyouhaveagreen/red...one?Howmuchis/are...?

Howabout...yuan?

I'lltakeit/them.

Excuseme.

Doyouneed/want...?

It's/They're...yuan.

Hereyouare.

$11$15$20$30$21$19$19Howmuchisthisbag?Twen