Unit7TheThirdPeriodHowmucharethesesocks-SectionB1a-1e課件人教版七年級英語上冊

Unit7TheThirdPeriodHowmucharethesesocks?SectionB1a-1eLearninggoals學(xué)習(xí)目標(biāo)1.掌握單詞：eleventwelvethirteenfifteentwentytwenty-onethirty等。（數(shù)字10-31的讀音以及拼寫）2.能夠運(yùn)用重點(diǎn)句型去詢問物品的價(jià)格

Howmuchis/are...It's/They're...123456789onetwothreefourfivesixseveneightnineReviewthesenumbersNewwordseleventwelvethirteenfifteeneighteentwentythirty[?’levn]]

十一[twelv]

十二[?θ??‘ti?n]十三[?f?f’ti?n]

十五[?e?‘ti?n]

十八[’twenti]

二十[‘θ??(r)ti]三十Numbersteneleventwelvethirteenfourteenfour+teen→sixteenseventeennineteenfifteeneighteenPresentation10111213141518161719twentytwen+ty→thirtythir+ty→twenty-onetwenty-twothirty-one203021223140

forty50

fifty60

sixty…onetwothreefourfivesixseveneightnineteneleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteentwentythirtyfortyfiftysixtyseventyeightyninetytwenty-one…twenty-ninethirty-one…thirty-nineforty-one…forty-ninefifty-one…fifty-ninesixty-one…sixty-nineseventy-one…seventy-nineeighty-one…eighty-nineninety-one…ninety-nineLearnthesenumbersandfindouttherules:

（1）0-12:沒有規(guī)律，需逐個記憶。（2）13-19:表示“十幾”，在3-9英文單詞后加-teen。注意特例：thirteen,fifteen,eighteen（3）20-90:表示“整十”，在2-9英文單詞后加-ty。注意特例：twenty,thirty,forty,fifty,eighty.(4)21-29…91-99:表示“幾十幾”，由“幾十”的單詞加上1-9的單詞構(gòu)成，中間用連詞符“-”連接。如：thirty-two找一找Discussion討論:基數(shù)詞的構(gòu)成規(guī)律(1)0～12這十三個數(shù)字要單獨(dú)記憶。(2)13～19都是以“個位數(shù)字＋

”構(gòu)成，并且重音都在

____

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

(3)20，30……90都是以“個位數(shù)字＋

”構(gòu)成，但應(yīng)注意

（20），

（30），

（40）______

（50），

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

”連接。如：thirty-two（32），forty-four（44），fifty-five（55）等。teenteentytwentythirtyfortyfiftyeighty-基數(shù)詞記憶規(guī)則歌訣基數(shù)詞不難記，找出規(guī)律很容易：零至十二形各異，加上-teen為十幾；Thirteen，fifteen看仔細(xì)，eighteen只有一個；Twenty卻是很奇怪，forty本身也不乖，Eighty一起搞例外，跟著也把規(guī)則壞；十位后面是個位，表示數(shù)字“幾十幾”，表示“幾百幾十幾”，and常把百、十系。勤學(xué)妙記加練習(xí)，hundred就是你的好成績。1a

Listenandrepeat.

10111213141516171819202122232425262728293031Row1:ten___eleven___twelve___thirteen___fourteen___Row2:twenty-five____twenty-six_____twenty-seven___twenty-eight____twenty-nine___Row3:twenty____twenty-one____twenty-two___twenty-three___twenty-four____Row4:fifteen______sixteen______seventeen______eighteen_______nineteen_____Row5:thirty____thirty-one_______1bWritethenumbersin1anexttothecorrectwords.Whichrowsofnumbersareinthewrongplaces?1011121314252627282920212223241516171819303110111213141516171819202122232425262728293031Listenandcirclethenumbersyouhearin1a.聽錄音，從活動1a中圈出你聽到的數(shù)字。1cListenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check()thethingKatebuys.聽錄音，在圖中圈出莉薩和媽媽談?wù)摰奈锲?。在莉薩所買的東西上打勾()。1dFinishtheblank.Mom:Oh,look!Ilikethat______________.Howmuchisit?Kate:__________dollars.Oh,Ilikethese___________.Mom:Oh,no.Idon'tlikered.Kate:Doyoulikethis_________?Mom:Mmm,yes,Ido,butit's__________dollars.Kate:Oh.Howmuchisthe_________________?Mom:It's__________dollars.Butyouhaveagreensweater.Kate:Mmm.Mom:Oh,doyoulikethese_____________?Kate:Oh,yes.Howmucharethey?Mom:Only___________dollars.Kate:OK,I'lltakethem.bluesweaterFifteensocksT-shirtelevengreensweatertwentytrouserssixteen1eHowmuchisthebluesweater?It’s15dollars.Askandanswerquestionsaboutthethingsinthepictureabove.

PairworkHowmucharethebluetrousers?They’re16dollars.填表格，記數(shù)字。101115tenthirteentwelve201830sixteennineteen262839twenty-onethirty-fiveeleven13fifteen12twenty16eighteen19thirtytwenty-six21twenty-eight35thirty-nineExercises翻譯1）11個籃球________________2）20個棒球拍_____________3）12頂紅色的帽子_____________4）26件短裙_______________5）15架模型飛機(jī)______________6）13個西紅柿_________________7）30個漢堡包_________________elevenbasketballstwentybaseballbatstwelveredhatstwenty-sixskirtsfifteenmodelplanesthirteentomatoesthirtyhamburgers1.Hey,Mike.Howmuch_____yourtrousers?Oh,_______tendollars.A.isthey'reB.arethey'reC.areThey're2.Howaboutthatgreensweater?______________yuan.(28yuan)A.They'retwenty-eightB.It'stwentyeightC.It'stwenty-eight3.Thatpairofshoesare_______dollars.(15美元）A.fourteenB.fifteenC.thirteen4.DoesSally