Unit7 SectionB 1a-1d 课件-人教版英语七年级上册.pptx
第四课时第四课时第四课时第四课时Talk about the price of the clothes.Its five dollars.How much is/are?Its /Theyre$7$5$6$3$9$8How much is that hat?Its a pair of pants shorts a pair of 一双一双/一对一对/一条一条 pantsIts a pair of shorts.They are _ _.They are two pairs of red socks three pairs of blue pants1.红色的长袜红色的长袜 _2.怎么样？怎么样？_3.您需要什么吗？您需要什么吗？_4.三美元两双三美元两双 _5.我买我买/要了。要了。_the long red socksHow about/What about?Can I help you?three dollars for two pairs Ill take it(them).eleventwelvethirteenfourteenfifteensixteenseventeeneighteennineteenone two three four five six seven eight nine tenDo you know more numbers?总结规律总结规律（1）012记住单词记住单词10 ten 11eleven 12 twelve（2）1319的基数词都以的基数词都以teen结尾。结尾。thirteen fourteen fifteen sixteen seventeen eighteen nineteenthirtytwentytwenty-onetwenty-sixfortyfiftysixtyseventyeightyninetyone hundredDo you know more numbers?总结规律总结规律（3）2090中整几十的基数词都以中整几十的基数词都以-ty结尾。结尾。twenty thirty forty fifty sixty seventy eighty ninety（4）“几十几几十几”的表达式：的表达式：+forty-one 41 fifty-two 52 sixty-three 整几十整几十-个位数个位数数字小结：数字小结：two-twelve -twentythree-thirteen -thirtyfour -fourteen -fortyfive -fifteen -fiftysix -sixteen -sixtyseven-seventeen-seventyeight-eighteen -eightynine -nineteen -ninetyone -ten -one hundred英语数字顺口溜英语数字顺口溜英语数词不难记，找出规则就容易。英语数词不难记，找出规则就容易。零至十二形各异，一个一个单独记。零至十二形各异，一个一个单独记。后面加后面加teen变变十几十几，thirteen,fifteen看仔细。看仔细。eighteen只有一个只有一个t，两个音节念清晰。，两个音节念清晰。表示表示“几十几十”要加要加-ty,twenty,thirty 是特例。是特例。表示数字表示数字“几十几几十几”，连字符号别忘记。，连字符号别忘记。1a Listen and repeat.10 11 12 13 14 15 16 17 18 19 2021 22 23 24 25 26 27 28 29 30 31Write the numbers in 1a next to the correct words.Which rows of numbers are in the wrong places?1b哪几行哪几行.的的在错误的位置在错误的位置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 _ 10111213142526272829202123241516171819303122Row 2 and row 4 are in the wrong places.Listen and circle the numbers you hear in 1a.1c101112131415161718192021222324252627282930311,2,4,5,7,8,.I am happy.逢逢3或或3的倍数，说的倍数，说“I am happy.”Where are the people in the picture?Ask and answer the prices of the clothes.How much is/are?It is/They areListen again.Circle the things in the picture that Kate and her mom talk about.Check()the thing Kate buys.1dMom:Oh,look!I like that blue sweater.How much is it?Kate:Fifteen dollars.Oh,I like these socks.Mom:Oh,no.I dont like red.Kate:Do you like this T-shirt?Mom:Mmm,yes,I do,but its eleven dollars.Kate:Oh.How much is the green sweater?Mom:Its twenty dollars.But you have a green sweater.Kate:Mmm.Mom:Oh,do you like these trousers?Kate:Oh,yes.How much are they？Mom:only sixteen dollars.Kate:Ok,Ill take them.How much is this?Its dollars.50 100 30 13$17$thirteen bag jacket fifty skirt one hundred hat seventeen$15 How much is this?Its$18$35 How much are these?Theyre$3$30$10$12$1$21.基数词表达基数词表达 1)one到到twelve，拼写和读音无规律。拼写和读音无规律。2)thirteen到到nineteen,“十几十几”,在个位数在个位数后加后缀后加后缀-teen,注意注意thirteen,fifteen和和eighteen。3)twenty到到ninety,“几十几十”,以以ty结尾结尾,注注意意twenty,thirty,forty,fifty,eighty。2.基数词用法基数词用法 基数词只能修饰可数名词，要注意数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。词和名词在数上要保持一致。如：如：一名学生一名学生 one student 两名男孩两名男孩 two boys 二十个苹果二十个苹果 twenty apples 三十三个鸡蛋三十三个鸡蛋 thirty-three eggs
