Unit 1 Grammar 课件 2025-2026学年译林版七年级英语下册

该初中英语课件聚焦基数词与序数词的形式、用法及应用，通过生活中的数字实例（如公交车号、楼层等）导入，从1-19、20-90等基础数字到多位数表达，再到规则总结与情境运用，构建由具体到抽象的学习支架。 其亮点在于融合语言能力与思维品质培养，通过对比表格呈现基数词-序数词转化规则，结合家庭生活情境练习强化运用，分层作业（制作家庭卡片）提升学习能力。学生能联系生活巩固知识，教师可借助清晰结构与多样活动提高教学效率。

Unit 1 Home Grammar By the end of the lesson, we will be able to... 1 2 3 master the usage and form of cardinal numbers and read big numbers correctly; master the usage and form of ordinal numbers; use cardinal numbers and ordinal numbers to talk about family and home life; Learning aims Lead in Brainstorm numbers in our lives bus number License plate number floor clock Lead in price temperature calendar money Presentation A Cardinal numbers We use cardinal numbers almost every day. What is cardinal number? A number (such as1, 2, 3) that expresses amount or quantity but not order, rank, or position in a series. Presentation 0 1 2 3 4 5 6 7 8 9 10 zero one two three four five six seven eight nine ten 11 12 13 14 15 16 eleven twelve thirteen fourteen fifteen sixteen Look at the numbers below. What’s in common? The cardinal numbers 13-19 all end in -teen. 17 18 19 seventeen eighteen nineteen Presentation 20 30 40 50 60 70 80 90 twenty thirty forty fifty sixty seventy eighty ninety These cardinal numbers all end in -ty. -teen /’ti:n/ -ty /ti/ 十几的英文单词重音在第二个音节上 几十的重音在第一个音节上 Presentation 21 34 65 88 twenty-one thirty-four sixty-five eighty-eight 20以上的非整十数，书写时要在十位和个位之间加连字符。 Presentation 120 232 one hundred and twenty two hundred and thirty-two 读三位数以上的数字，百位和十位间要加and。 543 954 five hundred and fourty-three nine hundred and fifty-four Presentation How can we use cardinal numbers? Neil’s home is about 15 miles form London. It is at 28 Rose Street. It has an area of 160 square metres. His phone number is 0207 000 1111.Neil loves taking pictures. He has about 1,000 pictures on his phone. They are very beautiful! Read the text below and pay attention to the use of cardinal numbers. distance house number area phone number amount Presentation phone numbers How to read big numbers? Presentation 百 100 one hundred 千 1,000 one thousand 万 10,000 ten thousand 百万 1,000,000 one million 千万 10,000,000 ten million 亿 100,000,000 one hundred million 十亿 1,000,000,000 ten billion 概数在表达时，不在单词后加-s。只有在表示成百上千/成千上万等含义时才加-s，如：hundreds of/ thousands of/ millions of . Presentation 4,056 23,813 567,110 6,425,000 four thousand and fifty-six twenty-three thousand, eight hundred and thirteen five hundred and sixty-seven thousand, one hundred and ten six million, four hundred and twenty-five thousand Tip：We often use a comma or a space to separate a big number into groups of three from right to left. Try to read the big numbers below. Practice Read the sentences below, pay attention to the numbers Practice Complete the sentences with correct cardinal numbers and read it together. Li Hua lives in a building with ___________(16) floors. It is about __________(36) miles from Ma On Shan. It has an area of ______________________(118) square metres. Li Hua likes his study the most, and there are more than ______________(10,000) books there. sixteen thirty-six one hundred and eighteen ten thousand Presentation B Ordinal numbers Read the sentences below and pay attention the word in bold. Li Mengtian lives on the twenty-second floor. Her birthday is on the twentieth of February. She is in the seventh grade. She is always the first in her class to get to school. What kind of numbers are the words in bold? They are ordinal numbers.(序数词) Presentation What is ordinal number? A number denotes relative position in a sequence, such as “first”, “second”, “third”. Presentation How can we use ordinal numbers? floors How to change cardinal numbers into ordinal numbers? Presentation 基数词 序数词 缩写 基数词 序数词 缩写 one first 1st eleven eleventh 11th two second 2nd twelve twelfth 12th three third 3rd thirteen thirteenth 13th four fourth 4th fourteen fourteenth 14th five fifth 5th fifteen fifteenth 15th six sixth 6th sixteen sixteenth 16th seven seventh 7th seventeen seventeenth 17th eight eighth 8th eighteen eighteenth 18th nine ninth 9th nineteen nineteenth 19th ten tenth 10th 1,2,3 的序数词是独立的单词，需单独记忆。 以-ve结尾的基数词，-ve要变为f，再加-th. 一般的序数词的构成是在基数词的词尾加-th。 Presentation 基数词 序数词 缩写 基数词 序数词 缩写 twenty twentieth 20th twenty-one twenty-first 21st thirty thirtieth 30th twenty-two twenty-second 22nd fourty fourtieth 40th twenty-three twenty-third 23rd fifty fiftieth 50th twenty-four twenty-fourth 24th sixty sixtieth 60th twenty-five twenty-fifth 25th seventy seventieth 70th eighty sightieth 80th ninety ninetieth 90th 以-ty结尾的基数词，-y要变成-ie，再加-th。 表示20以上的非整十数的基数词，将个位上的基数词变为序数词 序数词的缩写为数字＋最后两个字母 Presentation Pay attention! 序数词须与the、物主代词或名词所有格连用 e.g. Look at the third picture on your book. She is my first friend in the middle school. It’s Tina’s second time to come to China. Practice first sixth eighth seventh tenth fourteenth nineteenth twenty-second thirtieth ninetieth hundredth Practice twenty-second fifteenth seventh first third thirteenth Summary 分类 表达法 示例 1~12 拼写和读音没有什么相似之处，无规律可循，应逐一进行记忆 1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve 13~19 除thirteen, fifteen, eighteen外，其余的在相应的个位数后加后缀-teen，读作/ti:n/ 13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen 20~90之间表示“几十”的整十位数 除twenty, thirty, forty, fifty, eighty外，其余的在相应的个位数后加-ty 20 twenty 30 thirty 40 forty 50 fifty 60 sixty 70 seventy 80 eighty 90 ninety 21~99之间表示“几十几”的非整十位数 用“整十位数+连字符‘-’+个位数”表示 24 twenty-four 61 sixty-one 96 ninety-six 100~900之间表示“几百”的整百位数 用“具体数字+hundred”表示 100 one hundred 800 eight hundred 101~999之间表示“几百几十几”的非整百位数 用“百位数+and+末（两)位的数”表示 208 two hundred and eight 921 nine hundred and twenty-one 基数词 Summary 方法 示例 第1至第19的序数词的构成， 一般情况下在基数词后加-th （1、2、3、5、8、9、12除外） six→sixth fourteen→fourteenth 第20至第90的整十的序数 词的构成，先把对应的基数词 词尾的y变成ie，再加-th thirty→thirtieth eighty→eightieth 20以后的非整十的两位或两 位以上的基数词变为序数词时， 只将个位数变为序数词 twenty-two→twenty-second one hundred and sixty-five →one hundred and sixty-fifth 基数词1、2、3、5、8、9、12 变为序数词是特殊变化，需单 独记忆 one→first two→second three→third five→fifth eight→eighth nine→ninth twelve→twelfth 序数词 Exercises 1. two ____________ 2. nine ____________ 3. twelve ____________ 4. forty-eight ____________ 5. fifty ____________ second ninth twelfth forty-eighth fiftieth Ⅰ. 写出下列词的序数词形式。 1. 娜娜试穿了三双鞋，她喜欢第三双。 Nana tried on ______pairs of shoes, and she liked _____ ______ pair. 2. 玛丽的生日是6月6日，她认为6是她的幸运数字。 Mary's birthday is on ______ _________ of June. She thinks ______ is her lucky number. 3. 卡拉是她的第一个还是第二个孩子？ Is Carla her _______ or ________ child? 4. 这是我的公寓，我住在23层。 This is my flat. I live on ______ ______________ floor. II.根据所给汉语提示，完成下列句子，每空一词。 the sixth/6th the third first second the twenty-third six/6 three Homework Finish the related exercises; Read cardinal numbers and ordinal numbers1~99 on page141-142; Required Optional Make a card about your family, using at least 6 cardinal numbers and four ordinal numbers. And then discuss in group of four. Thank you! $