Unit 2 Amazing numbers 单元语法Grammar 基数词和序数词 2026-2027学年八年级英语上册单元练习（沪教版）

**基本信息** 初中英语Unit 2基数词和序数词单元复习卷，通过系统归纳数词构成规律，结合梯度化题型巩固基础、提升应用能力，适配语言能力与学习能力培养需求。 **题型特征** |题型|题量/分值|知识覆盖|命题特色| |----|-----------|----------|----------| |写出基数词和序数词|10题/40分|1-12、13-19、20-90及复合数词（如21）的基数词与序数词转换|以表格归纳“1-12特殊记”“ve用f替”等规律，强化学习策略| |单项选择|20题/40分|数词在生日（如twentieth birthday）、数量（如two hundred）、数字读写（如16,828）中的应用|创设生活情境（生日派对、观影人数），考查语言理解与表达| |单词拼写|10题/20分|序数词（如third）、概数（如thousands of）、日期（如23rd）的拼写|结合节日（端午节）、学校生活，提升语言应用的准确性|

学校:姓名:班级:考号: Unit 2 Amazing numbers 基数词和序数词 (时间:60分钟,满分:100分) 一、数词的基本分类 1)基数词 表示数目多少的数词叫基数词,如 one, five, ten, thirty, sixty-five 等。 2)序数词 表示顺序先后的数词叫序数词,如 first, sixth, tenth, twenty-first 等。 二、数词的构成 基数词用法 1-12 特殊记 13-19 + teen 20-90 整十 + ty 其它 1 one 13 thirteen 20 twenty 一百 2 two 14 fourteen 30 thirty hundred 3 three 15 fifteen 40 forty 一千 4 four 16 sixteen 50 fifty thousand 5 five 17 seventeen 60 sixty 百万 6 six 18 eighteen 70 seventy million 7 seven 19 nineteen 80 eighty 十亿 8 eight 90 ninety billion 9 nine 21-99(非整十): 十位与个位之间加“- ” 三位数: 在百位与十位或个位之间加“and ” 10 ten 11 eleven 21 twenty-one 108 one hundred and eight 12 twelve 35 thirty-five 225 two hundred and twenty-five 【拓展】数字“0”的英文表达为“zero ” 序数词用法 第一—第十二 第十三—第十九 第二十—第九十 第几十几 第一 first 第十一 eleventh 第二十 twentieth 两位数的基数词 只需要把个位数 变成序数词 如: twenty-one twenty-first 第二 second 第十二 twelfth 第三十 thirtieth 第三 third 第十三 thirteenth 第四十 fortieth 第四 fourth 第十四 fourteenth 第五十 fiftieth 第五 fifth 第十五 fifteenth 第六十 sixtieth 第六 sixth 第十六 sixteenth 第七十 seventieth 第七 seventh 第十七 seventeenth 第八十 eightieth 第八 eighth 第十八 eighteenth 第九十 ninetieth 第九 ninth 第十九 nineteenth 【注意】 第十九 nineteenth 不去 e 第十 tenth / 【助记】 基变序,有规律,词尾要添 th 123,特殊记,词尾字母 tdd 八去 t, 九去 e 5 和 12 一起记,ve 要用 f 替 若要遇到整十数,ty 变成 tie,后面再加th 若是遇到几十几,只变个位就可以 1、 写出下列数字的基数词,并对比记忆写出序数词(本大题共10小题,每小题4分,共40分) 1.4 , 2.10 , 3.12 , 4.15 , 5.8 , 6.9 , 7.21, 8.72 , 9.40 , 10.20, 二、单项选择(本大题共20小题,每小题2分,共40分) 11.Jim will turn tomorrow and there will be a party for his birthday. A.twenty; twenty B.twentieth; twentieth C.twenty; twentieth D.twentieth; twenty 12.After a long walk, he looked ahead and saw a small house metres away. A.hundred B.hundreds C.two hundred of D.hundreds of 13.—Simon, can you read the number 16,828? —Yes, I can. It’s . A.sixteen thousand eight hundred and twenty-eight B.sixteen thousand eight hundreds and twenty-eight C.sixteen thousand and eight hundred and twenty-eight D.sixteen thousands eight hundred and twenty-eight 14.—Look at the picture! There were so many people watching Suchao last night. — ? That’s so amazing. A.Sixty-one thousand, one hundred and six B.Sixty-one thousand, one hundred zero six C.Sixty-one thousands, one hundred and six D.Sixty-one thousands, one hundred zero six 15.Sandy has classes this morning, and the one is music. A.four; four B.four; fourth C.fourth; four D.fourth; fourth 16.There are months in a year, and May is month. A.the twelfth; five B.twelve; fifth C.twelve; the fifth D.the twelfth; fifth 17.How do you read the number 6,425,200 correctly? A.six million four hundred and twenty-five thousand two hundred B.six millions four hundreds and twenty-five thousands two hundreds C.six million and four hundred and twenty-five thousand and two hundred D.six millions four hundred and twenty-five hundred and two hundred 18.—Mr Lee, how can we read the number 20,892? —It should be . A.twenty thousand, eight hundred ninety-two B.twenty thousand, eight hundred and ninety-two C.twenty thousand, and eight hundred ninety-two D.twenty thousand, and eight hundred and ninety-two 19.— people go to the cinema during the Spring Festival. —About of them are young people. A.Millions of; five thousand B.Million of; five thousand C.Millions of; five thousands D.Million of; five thousands 20.There are floors in this building and my flat is on the floor. A.twelve; twelve B.twelfth; twelve C.twelve; twelfth D.twelfth; twelfth 21.We read “7,146,000” as “”. A.seven hundred million, six thousand B.seven million and one hundred forty-six thousand C.seven million, one hundred forty-six thousand D.seven million, one hundred and forty-six thousand 22.There are paintings on exhibition (展览). works were painted by young artists. A.two hundred; Two hundreds B.two hundreds; Hundreds of C.hundreds of; Two hundred D.two hundred of; Hundreds of 23.visitors come to the park to smell the flowers and enjoy the view at the weekend. A.Thousand of B.Thousands of C.Three thousands D.Three thousand of 24.This year, students from top colleges wanted to work here, but only were employed by this leading company. A.million of; three thousands B.millions of; three thousands C.millions of; three thousand D.million of; three thousand 25.“Fifty-five million five hundred and sixty-seven thousand and eighty-five” is . A.55567085 B.55056785 C.55506785 D.55560785 26.My mother will be years old next week. I’m planning to make something special as her birthday gift. A.fortieth; fortieth B.forty; forty C.forty; fortieth D.fortieth; forty 27.There are students in our school. They all study hard. A.two thousands B.two thousand C.two thousand of D.two thousands of 28.There are people in this village. A.eight thousand and two hundred eighty-three B.eight thousands two hundred and eighty-three C.eight thousand two hundred and eighty-three D.eight thousand two hundred eighty-three 29.—How old is your sister? —. We had a special party for her birthday last Sunday. A.Nine; ninth B.Nine; the ninth C.Ninth; nine D.Ninth; the ninth 30.Which number is the largest? A.five million seven hundred and eighty-six thousand six hundred and fifty-eight B.five million six hundred and seventy-eight thousand eight hundred and sixty five C.five million seven hundred and sixty-eight thousand six hundred and eight-five D.five million six hundred and sixty-eight thousand eight hundred and fifty-six 三、单词拼写(本大题共10小题,每小题2分,共20分) 31.Today is the (three) day of the school trip. 32.Emma is having her (twelve) birthday party. 33.Mr Brown is always the (one) teacher to come to school. 34. (thousand) of birds live in Zhalong when summer comes. 35.The Dragon Boat Festival is on the (five) day of the fifth lunar (农历) month. 36.The (twenty‑three) of April is English Language Day. 37.My father’s birthday is on (31) of January. 38.Next Sunday is my uncle’s (forty) birthday. 39.This is the (fifteen) day of my summer holiday. 40.Look! There are (fifty-one) erasers on the desk. 试卷第1页,共3页 试卷第1页,共3页 学科网(北京)股份有限公司 $ 学校:___________姓名：___________班级：___________考号：___________ Unit 2 Amazing numbers 基数词和序数词 （时间：60分钟，满分：100分） 一、数词的基本分类 1）基数词 表示数目多少的数词叫基数词，如 one, five, ten, thirty, sixty-five 等。 2）序数词 表示顺序先后的数词叫序数词，如 first, sixth, tenth, twenty-first 等。 二、数词的构成 基数词用法 1-12 特殊记 13-19 + teen 20-90 整十 + ty 其它 1 one 13 thirteen 20 twenty 一百 2 two 14 fourteen 30 thirty hundred 3 three 15 fifteen 40 forty 一千 4 four 16 sixteen 50 fifty thousand 5 five 17 seventeen 60 sixty 百万 6 six 18 eighteen 70 seventy million 7 seven 19 nineteen 80 eighty 十亿 8 eight 90 ninety billion 9 nine 21-99（非整十）： 十位与个位之间加“- ” 三位数： 在百位与十位或个位之间加“and ” 10 ten 11 eleven 21 twenty-one 108 one hundred and eight 12 twelve 35 thirty-five 225 two hundred and twenty-five 【拓展】数字“0”的英文表达为“zero ” 序数词用法 第一—第十二 第十三—第十九 第二十—第九十 第几十几 第一 first 第十一 eleventh 第二十 twentieth 两位数的基数词 只需要把个位数 变成序数词 如： twenty-one →twenty-first 第二 second 第十二 twelfth 第三十 thirtieth 第三 third 第十三 thirteenth 第四十 fortieth 第四 fourth 第十四 fourteenth 第五十 fiftieth 第五 fifth 第十五 fifteenth 第六十 sixtieth 第六 sixth 第十六 sixteenth 第七十 seventieth 第七 seventh 第十七 seventeenth 第八十 eightieth 第八 eighth 第十八 eighteenth 第九十 ninetieth 第九 ninth 第十九 nineteenth 【注意】 第十九 nineteenth 不去 e 第十 tenth / 【助记】 基变序，有规律，词尾要添 th 123，特殊记，词尾字母 tdd 八去 t， 九去 e 5 和 12 一起记，ve 要用 f 替 若要遇到整十数，ty 变成 tie，后面再加th 若是遇到几十几，只变个位就可以 1、 写出下列数字的基数词，并对比记忆写出序数词(本大题共10小题，每小题4分，共40分) 1．4 ________________, _________________ 2．10 ______________, _______________ 3．12 ___________________, ___________________ 4．15 ______________, _______________ 5．8 ______________, ________________ 6．9 _______________, _______________ 7．21_______________, ___________________ 8．72 ______________, _______________ 9．40 ________________, _________________ 10．20______________, __________________ 【答案】 1． four fourth 2． ten tenth 3． twelve twelfth 4． fifteen fifteenth 5． eight eighth 6． nine ninth 7． twenty-one twenty-first 8． seventy-two seventy-second 9． forty fortieth 10． twenty twentieth 【详解】1．4的基数词是four，序数词是fourth。故填four；fourth。 2．10的基数词是ten，序数词是tenth。故填ten；tenth。 3．12的基数词是twelve，序数词是twelfth。故填twelve；twelfth。 4．15的基数词是fifteen，序数词是fifteenth。故填fifteen；fifteenth。 5．8的基数词是eight，序数词是eighth。故填eight；eighth。 6．9的基数词是nine，序数词是ninth。故填nine；ninth。 7．21的基数词是twenty-one，序数词是twenty-first。故填twenty-one；twenty-first。 8．72的基数词是seventy-two，序数词是seventy-second。故填seventy-two；seventy-second。 9．40的基数词是forty，序数词是fortieth。故填forty；fortieth。 10．20的基数词是twenty，序数词是twentieth。故填twenty；twentieth。 二、单项选择(本大题共20小题，每小题2分，共40分) 11．Jim will turn _________ tomorrow and there will be a party for his _________ birthday. A．twenty; twenty B．twentieth; twentieth C．twenty; twentieth D．twentieth; twenty 【答案】C 【详解】句意：吉姆明天将满二十岁，并且将为他的第二十个生日举行一个派对。 twenty二十，基数词；twentieth第二十，序数词。根据“Jim will turn...tomorrow”可知，表示年龄时，turn后接基数词；根据“there will be a party for his...birthday.”可知，表示“第几个生日”时，用序数词修饰birthday。应填twenty；twentieth。 12．After a long walk, he looked ahead and saw a small house ________ metres away. A．hundred B．hundreds C．two hundred of D．hundreds of 【答案】D 【详解】句意：走了很长一段路后，他向前看去，看到一座小房子在几百米外。 hundred前面有具体数字时用单数且不加of，前面无具体数字表示模糊数量时用hundreds of，本空无具体数字，表示模糊的几百米距离，应填hundreds of。 13．—Simon, can you read the number 16,828? —Yes, I can. It’s ________. A．sixteen thousand eight hundred and twenty-eight B．sixteen thousand eight hundreds and twenty-eight C．sixteen thousand and eight hundred and twenty-eight D．sixteen thousands eight hundred and twenty-eight 【答案】A 【详解】句意：——西蒙，你能读出16,828这个数字吗？——是的，我可以。它是sixteen thousand eight hundred and twenty-eight。 英语数字读法中，千位和百位之间不加and，百位和十位之间加and，hundred和thousand用单数形式，应填“sixteen thousand eight hundred and twenty-eight”。 14．—Look at the picture! There were so many people watching Suchao last night. — ________? That’s so amazing. A．Sixty-one thousand, one hundred and six B．Sixty-one thousand, one hundred zero six C．Sixty-one thousands, one hundred and six D．Sixty-one thousands, one hundred zero six 【答案】A 【详解】句意：——看这张照片！昨晚有那么多人在看苏超。——六万一千一百零六人？太惊人了。 hundred, thousand前有具体数字修饰时用单数形式，不加s；百位与个位之间通常用and连接，应填Sixty-one thousand, one hundred and six。 15．Sandy has ________ classes this morning, and the ________ one is music. A．four; four B．four; fourth C．fourth; four D．fourth; fourth 【答案】B 【详解】句意：桑迪今天上午有四节课，第四节课是音乐课。 four四（基数词，表数量）；fourth第四（序数词，表顺序）。第一空表“课程数量”用基数词four，第二空表“第几节课”用序数词fourth，应填four; fourth。 16．There are ________ months in a year, and May is ________ month. A．the twelfth; five B．twelve; fifth C．twelve; the fifth D．the twelfth; fifth 【答案】C 【详解】句意：一年有十二个月，五月是第五个月 twelfth第十二； five五；twelve十二；fifth第五。第一空表示数量十二，应用基数词twelve；第二空表示顺序第五，应用序数词fifth，且序数词前通常加定冠词the。 17．How do you read the number 6,425,200 correctly? A．six million four hundred and twenty-five thousand two hundred B．six millions four hundreds and twenty-five thousands two hundreds C．six million and four hundred and twenty-five thousand and two hundred D．six millions four hundred and twenty-five hundred and two hundred 【答案】A 【详解】句意：你如何正确地读数字6,425,200？ 英语中表示确切数量时，million, thousand, hundred等单位词后不加s；百位与十位之间用and连接，不同级单位之间不用and。根据规则，6,425,200应读作six million four hundred and twenty-five thousand two hundred。 18．—Mr Lee, how can we read the number 20,892? —It should be ________. A．twenty thousand, eight hundred ninety-two B．twenty thousand, eight hundred and ninety-two C．twenty thousand, and eight hundred ninety-two D．twenty thousand, and eight hundred and ninety-two 【答案】B 【详解】句意：——李先生，我们怎么读数字20,892？——应该读作两万零八百九十二。 英语中多位数的读法规则：百位和十位之间通常加“and”，千位和百位之间不加“and”。20,000读作twenty thousand，892读作eight hundred and ninety-two，合起来为twenty thousand, eight hundred and ninety-two。 19．—________ people go to the cinema during the Spring Festival. —About ________ of them are young people. A．Millions of; five thousand B．Million of; five thousand C．Millions of; five thousands D．Million of; five thousands 【答案】A 【详解】句意：——春节期间数百万人去电影院。——他们中大约五千人是年轻人。 million和thousand与具体数字连用时，不加s和of；表示不确定概数时，需要加s和 of。第一空无前缀数字，表概数“数百万”，应填Millions of；第二空有具体数字five，thousand不加s，应填 five thousand。 20．There are ________ floors in this building and my flat is on the ________ floor. A．twelve; twelve B．twelfth; twelve C．twelve; twelfth D．twelfth; twelfth 【答案】C 【详解】句意：这栋楼有十二层，我的公寓在第十二层。 考查数词用法。第一空，根据空前“There are”和空后“floors”可知，此处是表示数量，所以要用基数词twelve，表示“十二层”；第二空，根据空前定冠词“the”和空后单数名词“floor”可知，此处要用序数词twelfth，表示“第十二层”。故选C。 21．We read “7,146,000” as “________”. A．seven hundred million, six thousand B．seven million and one hundred forty-six thousand C．seven million, one hundred forty-six thousand D．seven million, one hundred and forty-six thousand 【答案】D 【详解】句意：我们把“7,146,000”读作“seven million, one hundred and forty-six thousand”。 考查数词的读法。英语数字都是以1000为单位的，thousand(千)，million(百万)，billion(十亿)，所以从右向左三位三位的用逗号断开。百位和十位之间用and相连，个位和十位之间加连字符，所以“7,146,000”读作“seven million, one hundred and forty-six thousand”。故选D。 22．There are ________ paintings on exhibition (展览). ________ works were painted by young artists. A．two hundred; Two hundreds B．two hundreds; Hundreds of C．hundreds of; Two hundred D．two hundred of; Hundreds of 【答案】C 【详解】句意：有大量的画作在展览。两百幅作品是由年轻艺术家绘制的。 考查数词。根据“There are ... paintings ...”和“... works were painted ...”可知，hundred前有具体数字时，hundred不能用复数形式，后面也不接of；hundreds of“数以百计的”，固定搭配，可用来修饰可数名词复数。故选C。 23．________visitors come to the park to smell the flowers and enjoy the view at the weekend. A．Thousand of B．Thousands of C．Three thousands D．Three thousand of 【答案】B 【详解】句意：成千上万的游客来公园闻到了鲜花，并在周末欣赏景色。 考查thousand的用法。thousand和具体数字连用需要用单数形式，无明确数字时用“thousands of”表示“成千上万的”，空格前无具体数字，应用thousands of。故选B。 24．This year, ______ students from top colleges wanted to work here, but only ______ were employed by this leading company. A．million of; three thousands B．millions of; three thousands C．millions of; three thousand D．million of; three thousand 【答案】C 【详解】句意：今年，数百万来自顶尖大学的学生想要在这里工作，但只有三千人被这家领先的公司录用了。 考查数词的用法。当million前没有具体数字修饰时，要用millions of，表示“数百万的”；当thousand前有具体数字修饰时，thousand要用单数形式，不能加s，所以“三千”应表达为three thousand。故选C。 25．“Fifty-five million five hundred and sixty-seven thousand and eighty-five” is ________ . A．55567085 B．55056785 C．55506785 D．55560785 【答案】A 【详解】句意：“五千五百五十六万七千零八十五”是55,567,085。 考查基数词。从右至左数，每三位数加一个逗号 (即以此把数目分为若干段)，第一个逗号前的数为thousand (千)，第二个逗号前的数为million (百万)。所以“Fifty-five million five hundred and sixty-seven thousand and eighty-five”可以写成55,567,085。故选A。 26．My mother will be ________ years old next week. I’m planning to make something special as her ________ birthday gift. A．fortieth; fortieth B．forty; forty C．forty; fortieth D．fortieth; forty 【答案】C 【详解】句意：我妈妈下周就四十岁了。我打算做些特别的东西作为她的第四十个生日礼物。 考查数词用法。fortieth第四十，序数词；forty四十，基数词。第一空，根据“… years old”可知，此处是指四十岁，应用基数词表示数量，排除A和D；第二空，根据“her … birthday gift”可知，此处是指她的四十岁生日礼物，应用序数词表示顺序，排除B。故选C。 27．There are ________ students in our school. They all study hard. A．two thousands B．two thousand C．two thousand of D．two thousands of 【答案】B 【详解】句意：我们学校有两千名学生。他们都很用功。 考查数词。表示具体数目时，如“two thousand”，后面不加s，直接使用基数词修饰“thousand”。故选B。 28．There are ________ people in this village. A．eight thousand and two hundred eighty-three B．eight thousands two hundred and eighty-three C．eight thousand two hundred and eighty-three D．eight thousand two hundred eighty-three 【答案】C 【详解】句意：这个村子有八千二百八十三人。 考查数词的表达。基数词后接数词的单数形式，排除B选项。百和十之间要用and连接，排除A和D选项，故选C。 29．—How old is your sister? —________. We had a special party for her ________ birthday last Sunday. A．Nine; ninth B．Nine; the ninth C．Ninth; nine D．Ninth; the ninth 【答案】A 【详解】句意：——你的姐姐多大？——九岁。上周日，我们为她的九岁生日举行了一个特别的聚会。 考查数词辨析。nine九，基数词；ninth第九，序数词。第一空表示“九岁”，用基数词；第二个空表示顺序，用序数词，空前有her修饰，序数词前不用冠词，故选A。 30．Which number is the largest? A．five million seven hundred and eighty-six thousand six hundred and fifty-eight B．five million six hundred and seventy-eight thousand eight hundred and sixty five C．five million seven hundred and sixty-eight thousand six hundred and eight-five D．five million six hundred and sixty-eight thousand eight hundred and fifty-six 【答案】A 【详解】句意：哪个数是最大的？ 考查基数词表达。five million seven hundred and eighty-six thousand six hundred and fifty-eight 5,786,658；five million six hundred and seventy-eight thousand eight hundred and sixty five 5,678,865；five million seven hundred and sixty-eight thousand six hundred and eight-five 5,768,685；five million six hundred and sixty-eight thousand eight hundred and fifty-six 5,668,856。对比数字可知5,786,658最大。故选A。 三、单词拼写(本大题共10小题，每小题2分，共20分) 31．Today is the ________ (three) day of the school trip. 【答案】third 【详解】句意：今天是学校旅行的第三天。句中空格前有定冠词the，后面修饰名词day，表示顺序，需要使用序数词。three的序数词形式为third，故填third。 32．Emma is having her ________ (twelve) birthday party. 【答案】twelfth 【详解】句意：艾玛正在举办她的十二岁生日派对。表示某人第几个生日要用序数词；twelve的序数词形式为twelfth。 33．Mr Brown is always the ________ (one) teacher to come to school. 【答案】first 【详解】句意：布朗先生总是第一个来学校的老师。空前有定冠词the修饰，修饰名词单数形式teacher，用one的序数词形式first“第一”。 34．________ (thousand) of birds live in Zhalong when summer comes. 【答案】Thousands 【详解】句意：夏天到来时，成千上万只鸟生活在扎龙。thousand前面无具体数字修饰时，要变为复数形式thousands；thousands of意为“成千上万的”，句首字母大写。 35．The Dragon Boat Festival is on the ________ (five) day of the fifth lunar (农历) month. 【答案】fifth 【详解】句意：端午节在农历五月初五。句中“the...day”表示日期，提示要用序数词表示顺序，five是基数词，序数词为fifth。 36．The ________ (twenty‑three) of April is English Language Day. 【答案】twenty‑third 【详解】句意：4月23日是英语语言日。表示日期要用序数词，“twenty‑three”的序数词需将词尾基数词“three”变为序数词“third”，因此填写“twenty‑third”，用来表达“第23日”。 37．My father’s birthday is on ________ (31) of January. 【答案】the thirty‑first 【详解】句意：我爸爸的生日在一月三十一日。表示日期要用序数词，31对应的序数词是thirty-first，序数词前面一般加定冠词the，因此填the thirty-first。 38．Next Sunday is my uncle’s ________ (forty) birthday. 【答案】fortieth 【详解】句意：下周日是我叔叔的四十岁生日。表示第几个生日需要用序数词，forty的序数词形式为fortieth，因此填fortieth。 39．This is the ________ (fifteen) day of my summer holiday. 【答案】fifteenth 【详解】句意：这是我暑假的第十五天。结合提示词，此处需要序数词修饰名词day，用来表示顺序“第十五”，基数词fifteen变序数词的规则是直接在词尾加th，故填fifteenth。 40．Look! There are ________ (fifty-one) erasers on the desk. 【答案】fifty-one 【详解】句意：看！桌子上有五十一块橡皮。此处表示橡皮的数量，需要基数词修饰可数名词erasers，fifty-one本身就是基数词，无需变形，因此填fifty-one。 试卷第1页，共3页 试卷第1页，共3页 学科网（北京）股份有限公司 $