2025-2026学年人教版七年级英语下册七升八英语暑期逆袭拔高——数词专项复习讲义（基数+序数+时间表达）

七升八英语暑期逆袭拔高——数词专项复习讲义（基数+序数+时间表达 ） 一、数词基础分类（必考两大类别） 数词分为基数词、序数词两大核心考点，附加拓展：概数表达、全套时间表达，为期末、月考、暑期拔高必考内容。 （一）基数词：表示数量多少（多少） 1. 0-100必考基数词分组表格速记（分组背诵、考场默写专用，划分记忆层级） 分组类别 英文+数字 背诵备注/易错点 ①基础0-9（个位） zero(0)、one(1)、two(2)、three(3)、four(4)、five(5)、six(6)、seven(7)、eight(8)、nine(9) 序数词变形本源，必默写 ②特殊10-19（十几） ten(10)、eleven(11)、twelve(12)、thirteen(13)、fourteen(14)、fifteen(15)、sixteen(16)、seventeen(17)、eighteen(18)、nineteen(19) eighteen仅1个t；11/12完全特殊变形 ③整十20-100（几十） twenty(20)、thirty(30)、forty(40)、fifty(50)、sixty(60)、seventy(70)、eighty(80)、ninety(90)、one hundred(100) ⚠高频错题：forty四十，禁止拼写fourty 课内核心提醒：十几后缀-teen；整十后缀-ty；forty为全书最高频拼写错题，表格已标注，无需重复备注 2. 两位数书写规则：几十+连字符+几 例：twenty-one 21；thirty-five 35；eighty-nine 89（必须加连字符，改错高频考点） 3. 基数词核心用法（课本原话考点） ① 直接修饰可数名词复数：five books 五本书 ② 表编号：基数词大写编号，Lesson One=the first lesson 第一课 ③ 年龄表达：基数词直接表达年龄 He is twelve. 他12岁。 （二）序数词：表示顺序先后（第几） 1. 变形口诀（必背考点，考试必考变形） 基变序，有规律，词尾加上th； 一二三特殊记，first,second,third； 八减t，九减e，f来把ve替； 整十基数变序数，ty变tie加th； 若是遇到几十几，只变个位就可以。 2. 高频不规则序数词（默写必考） one—first(1st) two—second(2nd) three—third(3rd) five—fifth(5th) eight—eighth(8th) nine—ninth(9th) twelve—twelfth(12th) twenty—twentieth(20th) forty—fortieth(40th) 3. 序数词必考用法 ① 序数词前面必须加定冠词the：the third floor 三楼 ② 几十几序数词：只变个位 the twenty-first day 第21天 ③ 表日期：May 5th 五月五日（日期固定用序数词） （三）拔高易错：概数表达（七下期末重难点，极易混淆） ✅有s+of：表模糊数量，数十加s + of hundreds of 数以百计的；thousands of 数以千计的 ✅无s无of：前面有具体数字，数字+数词原形 five hundred students 五百名学生（hundred不加s、不加of） 绝杀易错点：数字+s+of 绝对不和具体数字连用！！ 二、专项重难点：时间表达 （一）时刻表达两种写法（听力、单选必考） 1. 顺读法：先小时，后分钟 6:20 six twenty 2. 逆读法 ① 30分钟以内：分钟+past+小时 6:10 ten past six ② 超过30分钟：(60-分钟)+to+(下一小时) 6:50 ten to seven ③ 特殊半点一刻钟：half past 半点；a quarter 一刻 6:30 half past six ；6:15 a quarter past six ；6:45 a quarter to seven （二）日期标准表达（写作、改错必考） 1. 英式：日+月份 5th June 六月五日 2. 美式：月份+日 June 5th 六月五日 3. 年份读法：四位年份两两拆分 2026 twenty twenty-six （三）年龄、编号、次数拓展时间/顺序表达 1. 复合年龄：in one’s + 整十复数 in his twenties 在他二十多岁时（拔高考点） 2. 编号表达：Number + 基数词 = the + 序数词 + 名词 Number Five=the fifth number 3. 次数表达：once一次，twice两次，three times三次 三、数词高频易错汇总（考试丢分点） 1. forty四十 切勿拼fourty 2. 序数词前必加the，物主代词修饰不用the：my first friend 我的第一个朋友 3. 具体数字，hundred/thousand无s无of；模糊数量，加s加of 4. 两位数英文书写必须带连字符：twenty-two 5. 日期日用序数词，年份、小时用基数词 拔高分层专项习题（满分100分） 一、单项选择（每小题2分，共40分） ( )1. There are _______ days in a week, and Sunday is the first day of a week. A. seven B. seventh C. the seven D. the seventh ( )2. My mother’s birthday is on June _______, I will buy a gift for her. A. five B. fifth C. fives D. the five ( )3. There are two _______ excellent students taking part in the school competition. A. hundred B. hundreds C. hundred of D. hundreds of ( )4. My little brother will be _______ years old next year. A. ninth B. ninth C. nine D. nines ( )5. We have four morning classes and afternoon classes every school day. A. two B. second C. the two D. the second ( )6. The time 6:45 can be read as _______ in English. A. a quarter past six B. a quarter to seven C. forty-five six D. six past forty-five ( )7. Look! There are _______ people dancing on the city square. A. eight hundreds B. eight hundred of C. hundreds of D. hundred of ( )8. This is my _______ time to visit the beautiful city Beijing. A. three B. third C. the three D. the third ( )9. He lives on the _______ floor in this tall building. A. twenty-one B. twenty-first C. twenty ones D. twenty first ( )10. There are _______ months in a whole year. A. twelve B. twelfth C. the twelve D. the twelfth ( )11. I usually get up at _______ seven every morning for morning exercise. A. half past B. past half C. half to D. to half ( )12. The young boy is in his _______. He loves doing all kinds of sports. A. twenty B. twenties C. twentieth D. twenty’s ( )13. —How many students are there in your class? —_______. Twenty boys and twenty girls. A. Forty B. Fortieth C. Fourty D. Fortys ( )14. September is the _______ month of a year. A. nine B. ninth C. nineteen D. ninety ( )15. Please turn to Page _______ and read the new dialogue together. A. the five B. fifth C. five D. fives ( )16. There are _______ seconds(秒) in one minute. A. sixty B. sixteenth C. sixty’s D. sixties ( )17. We will have a school trip on the _______ of July. A. twenty-three B. twenty-third C. twenty three D. twenty third ( )18. _______ people lost their warm homes in the big fire last week. A. Two hundreds B. Hundreds of C. Two hundred of D. Hundred of ( )19. My sister’s birthday is _______ April 12th. A. in B. on C. at D. of ( )20. It’s ten _______ five now. It’s 4:50 p.m. A. past B. to C. for D. at 二、用所给数词适当形式填空（每空2分，共20分） 1. Today is my ________ (eight) birthday. 2. There are ________ (twelve) months in a year. 3. The ________ (five) girl is my deskmate. 4. I have ________ (hundred) of books at home. 5. He lives on the ________ (nineteen) floor. 6. Look at the ________ (two) picture. It’s nice. 7. There are three ________ (thousand) people in the town. 8. Autumn is the ________ (three) season of a year. 9. My grandpa is ________ (eighty) years old. 10. I visit my grandma ________ (one) a week. 三、根据中文提示完成句子（每小题3分，共12分） 1. 我们学校有数百名学生。 There are ________ ________ students in our school. 2. 他在二十多岁时喜欢打篮球。 He likes playing basketball ________ ________ ________. 3. 今天是这个月的第二十三天。 Today is the ________ ________ of this month. 4. 现在是七点一刻。 It’s ________ ________ ________ seven. 四、短文改错（共6小题，每小题2分，共12分，每句一处错误） 1. I have fourty pencils in my pencil box. __________ 2. This is the twentyth lesson of this book. __________ 3. There are five hundreds students on the playground. __________ 4. My mother’s birthday is on July nine. __________ 5. It’s a quarter past six fifty. __________ 6. He is the one son in his family. __________ 五、选词填空（每空2分，共16分） 从方框中选择合适数词，用适当形式填空，每词限用一次 twelve, three, forty, hundred, one, five, twenty-one, eight 1. There are ________ months in a year. 2. The ________ month is March. 3. There are ________ students in Grade Seven. 4. There are ________ of people in the big park. 5. I go swimming ________ a week. 6. My cousin’s birthday is on the ________ of June. 7. He lives on the ________ floor. 8. August is the ________ month of a year. 参考答案 一、单项选择标准答案：1-5 ABACA 6-10 BCBBA 11-15 ABABC 16-20 ABBBB 二、词形填空标准答案 1.eighth 2.twelve 3.fifth 4.hundreds 5.nineteenth 6.second 7.thousand 8.third 9.eighty 10.once 三、根据中文提示完成句子答案 1. hundreds of 2. in his twenties 3. twenty-third day 4. a quarter past 四、短文改错答案+解析 1. fourty→forty 解析：四十标准拼写为forty 2. twentyth→twentieth 解析：整十序数词改y为ie加th 3. hundreds→hundred 解析：具体数字five后hundred用原形 4. nine→ninth 解析：日期必须使用序数词 5. past→to 解析：6:50用ten to seven，时刻逆读固定用法 6. one→first 解析：表顺序第一个儿子，用序数词 五、选词填空标准答案 1.twelve 2.third 3.forty 4.hundreds 5.once 6.fifth 7.twenty-first 8.eighth 学科网（北京）股份有限公司 $