R七年级上册SectionB第3课时Unit7Howmucharethesesocks?Newwords1.ten_________________2.eleven_________________3.twelve_________________4.thirteen__________________5.fifteen__________________6.eighteen___________________7.twenty___________________8.thirty___________________十十一十二十三十五二十三十十八1aListenandrepeat.101112131415161718192021222324252627282930311bWritethenumbersin1anexttothecorrectwords.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____101112131425262728292021222324151619173018311cListenandcirclethenumbersyouhearin1a.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____1dListenagain.CirclethethingsinthepicturethatKateandhermomtalkabout.Check（√）thethingKatebuys.√1eAskandanswerquestionsaboutthethingsinthepictureabove.Howmuchisthewhitebag?It’sseventeendollars.Howmucharetheblackshoes?Role-playTheyareeighteendollars.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。Exercise判断下列算式正误(T/F)()1.twelve+eight=twenty()2.seven+eight=fifteen()3.thirty-one+seven=twenty-five()4.eleven+twenty=thirty-one()5.twenty-four+nine=thirty-twoTTFTFⅡ.完成句子1.——这件白色的T恤衫多少钱?——25元。—isthewhiteT-shirt?—yuan.2.——这短裤15元吗?——是的。—theshortsyuan?—Yes,itis.HowmuchTwenty-fiveArefifteen3.——你喜欢什么颜色?——我喜欢黄色。—doyoulike?—Ilikeyellow.4.——十五加十六等于多少?——三十一。—fifteenandsixteen?—.5.这十双袜子35元。Thesepairsofsocksareyuan.WhatcolorWhat’sThirty-onetenthirty-five同学们，这一课学习的单词你们都掌握了吗？现在大家来检验一下，点击下面的视频开始听写吧！