Talkaboutthepriceoftheclothes.Numberstwenty1aWritethenumbersin1anexttothecorrectwords.Whichrowsofnumbersareinthewrongplaces?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__Listenandcirclethenumbersyouhearin1a.Listenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check(√)thethingKatebuys.1e1.askirt___3.socks___5.shorts__2.asweater___4.trousers___6.shoes__Readtheadandfillthepricetags.阅读指导:首先，读短文过程中，划出广告中所售的衣物，并圈出该物品(wùpǐn)的价格。然后，看图片中的物品(wùpǐn)并注意其颜色，与短文中所描述的物品(wùpǐn)相对应。最后，将衣物名称与价格一一对应，填入价签中。$15You: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.You:Whataboutthispair?Theyare_____twenty-eight_______.Boy:Great.Anddoyouhaveshorts,too?You:Yes,ourshortsareonly______dollars.Boy:OK.I’lltakethe_____andthe______.Practicetheconversationinagroup.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(hòuzhuì)-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(yībǎi)”，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(xiūshì)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.Comeandbuyyourclothesatourgreatsale!我们在大甩卖(shuǎimài)，快来买衣服吧！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”。e.g.Let’sbuymomanewsweater.（=Let’sbuyanewsweaterformom.）我们给妈妈买件新毛衣吧。clothes指身上穿的各种服装，包括上衣，