四年级英语上册 Unit 2 I like bobby课件3 北师大版（一起）

Let’schant:Myshirtisred.Myjacketisblue.Mydressisold.Mysweaterisnew.Socks,mysocksarewhite.Shoes,myshoesaretoo.Pants,mypantsareold.Shots,myshortsarenew.Leadin1.big(反义词)_______2.long(反义词)_______3.white(反义词)_____4.sock(复数)_______5.shoe(复数)________6.this(复数)__________7.that(复数)________8.dollar(复数)________9.需要我帮助吗？_____________10.这个怎么样？_______________________11.我将买它。___________________12.三美元两双______________________13.给你_____________________shortsmall一、按要求写出正确的单词或词组。blacksocksshoesthosedollarstheseCanIhelpyou?RevisionHow/Whataboutthisone?I’lltakeit.threedollarsfortwopairsHereyouare.二、Askandansweraboutthepictures.Howmuchisthathat?It’sfivedollars.Howmuchis/are…?It’s…/They’re…$6NumbersPresentationteneleventwelvethirteenfourteenfour+teen→16sixteen17seventeen19nineteenfifteeneighteentwentytwen+ty→thirtythir+ty→40forty50fifty60sixtytwenty-onethirty-twosixty-sevenclothesboyMr.apairofshoessalestorepricebuysell50元现价10元原价50元Bean1aListenandrepeat.10111213141516171819202122232425262728293031Writethenumbersin1anexttothecorrectword.Whichrowsofnumbersareinthewrongplaces?1bten__eleven__twelve__thirteen__fourteen__twenty-five__twenty-six__twenty-seven__twenty-eight__twenty-nine__twenty__twenty-one__twenty-two22twenty-three__twenty-four__fifteen__sixteen__seventeen__eighteen__nineteen__thirty__thirty-one__101112131425262728292021232415161718193031Listenandcirclethenumbersyouhearin1a.1c10111213141516171819202122232425262728293031Listenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check(√)thethingKatebuys.1d√1ePairworkHowmuchisthebluesweater?It’s15dollars.Askandanswerquestionsaboutthethingsinthepictureabove.Howmuchis/are…?It’s…/They’re…1.askirt___3.socks___5.shorts__2.asweater___4.trousers____6.shoes__Howmuchdoyouthinkthesethingscost?Matcheachclothingitemwithaprice.Thinking2abafedca.$3c.$30e.$22b.$15d.$20f.$25Readtheadandfillthepricetags.Mr.Cool’sClothesStoreComeandbuyyourclothesatourgreatsale!Wesellallourclothesatverygoodprices.Doyoulikesweaters?Wehaveredandgreensweatersforonly$15!Yellowsweatersareonly$12!Doyouneedtrousers?Forboys,wehaveblacktrousersforonly$22.Andshortsareonly$16!Forgirls,wehaveskirtsinpurpleforonly$20.Howmuchareourjackets?Only$30!Andwehaveblackshoesforonly$28.Socksareonly$2forthreepairs！CometoMr.Cool’sClothesStorenow!2b阅读指导:首先，读短文过程中，可用“___”划出广告中所售的衣物，并用“”圈出该物品的价格。然后，看图片中的物品并注意其颜色，与短文中所描述的物品相对应。最后，将衣物名称与价格一一对应，填入价签中。$15$12$20$22$16$30You: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.2cImagineyouworkatMr.Cool’sClothesStore.Completetheconversation.WritingYou:Whataboutthispair?Theyare_____twenty-eight_______.Boy:Great.Anddoyouhaveshorts,too?You:Yes,ourshortsareonly______dollars.Boy:OK.I’lltakethe_____andthe______.阅读指导：首先，快速阅读对话一遍，明确自己售货员的身份，可知第一句话应为“CanIhelpyou?”。然后，读对话，通过对话中谈到的衣物的颜色或价格等信息来确定是何衣物；或通过所谈到的衣物来填写其颜色或价格。如在女孩购物的情境中，根据所谈到theseredandpurpleone，再与。短文中的“Wehaveskirtinredandpurple”信息相对应，可知女孩是想买短裙，价格是$20。男孩谈到需要一双棕色的某物上学穿，再由下文知其仅是28美元，回顾短文可知所谈应是鞋子。男孩还谈到了要买短裤，对应短文内容可知短裤的价格是16美元。Answers:Can,skirt,skirts,much,20,take,shoes,only,dollars,16,shoes,shortsPracticetheconversationinagroup.You:Hello,CanIhelpyou?Girl:Yes,please.Ineedaskirt.You:Howaboutthesepurpleskirts?Girl:Oh,Ilikethisone.Howmuchisit?You:It’sonly20dollars.Girl:Oh,good.I’lltakeit.You:Andwhatdoyouneed?Boy:Well,Ineedapairofblackshoesforschool.You:Whataboutthispair?Theyareonly28dollars.Boy:Great.Anddoyouhaveshorts,too?You:Yes,ourshortsareonly16dollars.Boy:OK.I’lltaketheshoesandtheshorts.1.基数词的表达1)one到twelve,拼写和读音无规律可言,只能逐一记忆。2)thirteen到nineteen，表示“十几”，在个位数后加后缀-teen，其中要注意thirteen,fifteen和eighteen的拼写。3)twenty到ninety，表示“几十”，以ty结尾，但需注意twenty,thirty,forty,fifty,eighty的拼写。4)21~29直到91~99，表示“几十几”,用整十位数加个位表示,中间用连字符“-”把十位和个位连接起来。5)onehundred意为“一百”，也可说ahundred，hundred可加具体数字，如ninehundred(900)。2.基数词的用法：基数词只能修饰可数名词，要注意数词和名词在数上要保持一致。如：onestudent一名学生twoboys两名男孩twentyapples二十个苹果thirty-threeeggs三十三个鸡蛋3.buy用作动词，意为“买”，常用短语为：buysb.sth./buysth.forsb.意为“给某人买某物”。如：Let’sbuymomanewhat.（=Let’sbuyanewhatformom.）我们给妈妈买顶新帽子吧。4.clothes指身上穿的各种服装，包括上衣，内衣，裤子等，是衣服的总称。它不能直接与数词连用，但可以与some,many,these或those等连用。如：Look!Someclothesareonsaleoverthere.看！那边的衣服大减价了。5.sale是动词sell的名词形式，常用短语：onsale，意为“出售；廉价出售”，其同义短语为atagreatsale。如：Thesweatersinthestoreareonsaletoday.今天这家商店的毛衣大减价了。6.all与定冠词、指示代词、形容词性物主代词等限定词连用时，all应放于这些词之前。如：allthestudents所有这些学生allherclothes她所有的衣服allthoserooms所有那些房间7.atverygoodprices意为“以合理的价格(出售)”。price用作名词，意为“价格”。如：What’sthepriceofthebook?这本书多少钱?Theyhavesweatersinallcolors,atthepriceof＄15each.他们有各种颜色的毛衣，每件售价是15元。8.Forgirls,wehaveskirtsinredandpurpleforonly＄20.对于女孩，我们有红色和紫色的裙子，仅售20元。1)forgirls中的for是“对于……而言”；foronly＄20中的for是“交换”的意思。2)该句中的in后接颜色的词，表示“穿……颜色的……”。如：Thegirlinredismysister.那个穿红衣服的女孩是我妹妹。一、填表格，记数字。101115tenthirteentwelve201830sixteennineteen262839twenty-onethirty-fiveeleven13fifteen12twenty16eighteen19thirtytwenty-six21twenty-eight35thirty-nineExercises二、做数学题，学英语。1.twenty-six－twelve－nine=_______2