Unit 2 Amazing numbers 语法Grammar 基数词和序数词-2025-2026学年八年级英语上册单元语法精讲精练（沪教版2024）

班级 姓名 学号 分数 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 1、基数词的构成 1）1-20的写法 ①1-12表达英语中有相对应的单词 ②13-19都是以teen结尾，其中除13,15,18之外，都是表示几的基数词后面直接加teen构成表示十几的基数词，如four-fourteen ③整十都是以ty结尾，其中除twenty特殊记忆外，其他都是表示十几的基数词去掉teen换成ty，但40要去掉u（一定要记住十四是十四，四十是四十） 数字的读法 ①两位数的表达方法为整数加个位数组成，如twenty-one ②三位数如one hundred and twenty-one，百位和十位之间加and，后面两位要加连字符 ③四位以上只有在百位和十位之间加and，如1134 one thousand, one hundred and thirty-four。 2）用作基数词单位的 hundred, thousand, million, billion 不带复数词尾-s，但若用于表示数百、数千、数百万这样的泛指，则用复数。如： About two thousand people died in the earthquake. 大约有两千人在地震中丧生。 Thousands of people go to the seaside every year. 每年成千上万的人到海边去。 3）表示整十的基数词用复数形式可以表示人的大约岁数或年代。如： He is in his early twenties. 他才二十出头。 This took place in the 1930s. 这事发生在20世纪30年代。 2、序数词的构成 1）基数词变序数词的口诀如下：一二三，特殊记，八去t，九去e，f要将ve替，几十几只变个位就可以，y变为ie，然后再加th。（结合数字理解记忆） 1-12的序数词中以twelfth考察最多。ninth，eighth和fifth次之。一定要记住这些特殊变位的。 2）非整十的多位数，将个位数变成序数词即可：twenty-first(第21)，thirty-sixth(第36)，ninety-ninth(第99)，three hundred and sixty-fifth(第365)等。 基数词与序数词对照表 (0-1000+ 核心词) 数字 基数词 (Cardinal) 序数词 (Ordinal) 序数词缩写 特殊规则 0 zero / oh — — — 1 one first 1st 不规则 2 two second 2nd 不规则 3 three third 3rd 不规则 4 four fourth 4th 5 five fifth 5th ve→f+th 6 six sixth 6th 7 seven seventh 7th 8 eight eighth 8th 加 h 9 nine ninth 9th 去 e 10 ten tenth 10th 11 eleven eleventh 11th 12 twelve twelfth 12th ve→f+th 13 thirteen thirteenth 13th 20 twenty twentieth 20th y→i+eth 21 twenty-one twenty-first 21st 个位变序数 30 thirty thirtieth 30th y→i+eth 40 forty (非 fourty) fortieth 40th y→i+eth 50 fifty fiftieth 50th y→i+eth 100 one hundred hundredth 100th 1,000 one thousand thousandth 1,000th 1、 单项选择(本大题共30小题，每小题2分，共60分) 1．There are ________ months in a year. A．twelve B．twelfth C．twenty D．twentieth 2．Nowadays, ________ farmers leave their hometown to search for work in cities. A．million of B．two millions C．millions of D．two millions of 3．There are about two ________ students in the newly built school. A．thousand B．thousands C．thousand of D．thousands of 4．Mrs. White lives in an old apartment with ________ floors and she is going to celebrate her ________ birthday. A．five; fiftieth B．fifth; the fiftieth C．five; the fiftieth D．fifth; fiftieth 5．Which number below is read as “seven million two hundred and thirty-four thousand”? A．7,230,400 B．7,240,300 C．7,234,000 D．723,400 6．How do we say 5,094,821? A．five million and ninety-four thousand and eight hundred and twenty-one B．five million ninety-four thousand and eight hundred and twenty-one C．five millions and ninety-four thousands, eight hundreds and twenty-one D．five million, ninety-four thousand, eight hundred and twenty-one 7．—Excuse me, can you read the number “________” in English? —Of course. Six million, three hundred and sixty-three thousand. A．6,360,360 B．6,660,360 C．6,363,000 8．Sarah buys ________ books for her project and puts them on the ________ shelf of the library. A．fifth, five B．five, fifth C．five, five D．fifth, fifth 9．—What should we do now, Mr Li? —Please turn to Page and look at the picture. A．Twelfth; fifth B．Twelve; fifth C．Twelve; five D．Twelfth; five 10．December is the ________ month in a year. A．twelve B．twelfth C．twentieth 11．Amy is ________ years old. Today is her ________ birthday. A．nine; nine B．nine; ninth C．nine; nineth 12．My sister is ________ years old. Today is her ________ birthday. A．four; forth B．fourth; four C．four; fourth 13．—How old is your daughter? —________. We had a surprise party for her ________ birthday last Sunday. A．Twentieth; twentieth B．Twentieth; twenty C．Twenty; twentieth D．Twenty; twenty 14．Mike held a party to celebrate his grandfather’s ________ birthday. A．eighties B．eighty C．eightieth D．the eightieth 15．There are ______ children in my grandfather’s family, and he is the ______ one. A．twelve, ninth B．twelve, nine C．twelfth, nine D．twelfth, ninth 16．This is the ________ time you’ve been late this week. A．three B．third C．thirteen D．thirty 17．About three ________ fans went to this concert and ________ of them are girls. A．thousand; two third B．thousand; two thirds C．thousands of; two third D．thousands of; two thirds 18．Yesterday, our class had a quiz. I answered ________ questions correctly, and ________ one was about the inventor of the light bulb. A．eight; three B．the eighth; the third C．eight; third D．eight; the third 19．November is the ________ month of a year. A．eighth B．ninth C．tenth D．eleventh 20．Li Ming will be ________. His parents are going to have a party for his ________ birthday. A．sixteen; sixteenth B．sixteenth; sixteenth C．sixteenth; sixteen 21．The Spring Festival of 2025 is on January ________. A．twentieth ninth B．twentieth nine C．twenty-ninth D．twentieth-nine 22．The ______ Asian Winter Games opened in Harbin on February 7th, 2025. A．nine B．nineteen C．ninety D．ninth 23．I got my __________ stamp when I was__________ years old. A．one; seven B．one; seventh C．first; seventh D．first; seven 24．Our Party was founded in 1921. We’ll celebrate her ________ birthday on July 1st this year. A．one hundred B．one hundredth C．the one hundredth D．the one hundred 25．—Saturday is the ________ of a week. —What about Sunday? A．seven day B．seventh days C．seventh day D．seven days 26．My sister is ________ now. She had a party for her ________ birthday yesterday. A．twenty; twentieth B．twenty; twenty C．twentieth; twenty 27．— How many new words are there in _________ lesson? — There are only _________. A．the twenty-first; the ninth B．the twenty-first; nine C．twenty-one; nine D．twenty-one; the ninth 28．Abraham Lincoln was ______ President of the United States. A．sixteen B．the sixteen C．sixteenth D．the sixteenth 29．I am going to send my mother a beautiful Gambiered Canton Gauze（香云纱）cheongsam（旗袍）for her ________ birthday. A．forty B．forties C．the fortieth D．fortieth 30．There are ________ students in our class. Bill was the ________ student to arrive today. ________ students arrived before he did. A．thirty-five; third; Two B．thirty-fifth, third; Two C．thirty-five; three; Second 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．It is my time to Swan Lake Middle School as a visiting student. (two) 32．It is the time for Tom to be late for school. (eight) 33．Today I got to school early. I am the . (one) 34．The boy was the one to get to the playground. (four) 35．Broadway has been famous since the early (twenty) century. 36．My brother likes drawing, so I bought colored pencils for him on his birthday. (thirteen) 37．Today is my (twenty) birthday. 38．The boy got his (twelve) gift on his birthday. 39．This kind of novels were popular at the end of the ________ (ninety) century. 40．We enjoyed ourselves very much on my grandma’s _________birthday yesterday. (eighty) 41．Li Ming will be sixteen. His parents are going to have a party for his (sixteen) birthday. 42．China has made great progress in the (twenty-one) century. 43．Joe broke his leg on the day of the holiday and couldn’t walk.  (five) 44．Turn left at the (nine) crossing, and you will see the hospital. 45．In the Twelve Chinese Zodiac Signs (十二生肖), the snake is the animal in order. (six) 46．We will celebrate his (49) birthday next week. 47．My grandpa often does sports, so I bought him s T-shirt for his (sixty) birthday. 48．There are (million) of birds singing in the trees in the forest. 49．Some scientists agree that it may take (hundred) of years to make robots think like humans. 50．He took part in the games in his (forty) and won a medal. 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 $$ 班级 姓名 学号 分数 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 1、基数词的构成 1）1-20的写法 ①1-12表达英语中有相对应的单词 ②13-19都是以teen结尾，其中除13,15,18之外，都是表示几的基数词后面直接加teen构成表示十几的基数词，如four-fourteen ③整十都是以ty结尾，其中除twenty特殊记忆外，其他都是表示十几的基数词去掉teen换成ty，但40要去掉u（一定要记住十四是十四，四十是四十） 数字的读法 ①两位数的表达方法为整数加个位数组成，如twenty-one ②三位数如one hundred and twenty-one，百位和十位之间加and，后面两位要加连字符 ③四位以上只有在百位和十位之间加and，如1134 one thousand, one hundred and thirty-four。 2）用作基数词单位的 hundred, thousand, million, billion 不带复数词尾-s，但若用于表示数百、数千、数百万这样的泛指，则用复数。如： About two thousand people died in the earthquake. 大约有两千人在地震中丧生。 Thousands of people go to the seaside every year. 每年成千上万的人到海边去。 3）表示整十的基数词用复数形式可以表示人的大约岁数或年代。如： He is in his early twenties. 他才二十出头。 This took place in the 1930s. 这事发生在20世纪30年代。 2、序数词的构成 1）基数词变序数词的口诀如下：一二三，特殊记，八去t，九去e，f要将ve替，几十几只变个位就可以，y变为ie，然后再加th。（结合数字理解记忆） 1-12的序数词中以twelfth考察最多。ninth，eighth和fifth次之。一定要记住这些特殊变位的。 2）非整十的多位数，将个位数变成序数词即可：twenty-first(第21)，thirty-sixth(第36)，ninety-ninth(第99)，three hundred and sixty-fifth(第365)等。 基数词与序数词对照表 (0-1000+ 核心词) 数字 基数词 (Cardinal) 序数词 (Ordinal) 序数词缩写 特殊规则 0 zero / oh — — — 1 one first 1st 不规则 2 two second 2nd 不规则 3 three third 3rd 不规则 4 four fourth 4th 5 five fifth 5th ve→f+th 6 six sixth 6th 7 seven seventh 7th 8 eight eighth 8th 加 h 9 nine ninth 9th 去 e 10 ten tenth 10th 11 eleven eleventh 11th 12 twelve twelfth 12th ve→f+th 13 thirteen thirteenth 13th 20 twenty twentieth 20th y→i+eth 21 twenty-one twenty-first 21st 个位变序数 30 thirty thirtieth 30th y→i+eth 40 forty (非 fourty) fortieth 40th y→i+eth 50 fifty fiftieth 50th y→i+eth 100 one hundred hundredth 100th 1,000 one thousand thousandth 1,000th 1、 单项选择(本大题共30小题，每小题2分，共60分) 1．There are ________ months in a year. A．twelve B．twelfth C．twenty D．twentieth 【答案】A 【详解】句意：一年有12个月。 考查基数词。twelve十二，基数词；twelfth第十二，序数词；twenty二十，基数词；twentieth第二十，序数词。根据生活常识可知，一年有十二个月，此处用基数词表示数量。故选A。 2．Nowadays, ________ farmers leave their hometown to search for work in cities. A．million of B．two millions C．millions of D．two millions of 【答案】C 【详解】句意：如今，成千上万的农民离开家乡去城里寻找工作。 考查数词。million前面有具体数字或a few/several等修饰时，词尾一般不加-s，表示确指概念；当前面没有具体数字，词尾要加-s，且与of连用。故选C。 3．There are about two ________ students in the newly built school. A．thousand B．thousands C．thousand of D．thousands of 【答案】A 【详解】句意：这所新建的学校里大约有两千名学生。 考查thousand的用法。当thousand前有具体数字时，thousand必须用单数，表示“几千”；当表示模糊数量时，用thousands of，前面不能加具体数字，意为“成千上万的”。根据“two”可知，此处表示两千名学生。故选A。 4．Mrs. White lives in an old apartment with ________ floors and she is going to celebrate her ________ birthday. A．five; fiftieth B．fifth; the fiftieth C．five; the fiftieth D．fifth; fiftieth 【答案】A 【详解】句意：怀特夫人住在一栋有五层楼的老公寓里，她即将庆祝她的五十岁生日。 考查数词。five五；fiftieth第五十；fifth第五。第一个空：表示楼层数量用基数词five；第二个空：表示第几个生日，需用序数词，序数词前有her修饰，不用加定冠词the，故选A。 5．Which number below is read as “seven million two hundred and thirty-four thousand”? A．7,230,400 B．7,240,300 C．7,234,000 D．723,400 【答案】C 【详解】句意：以下哪个数字读作“七百二十三万四千”？ 考查数字的读法。7,230,400七百二十三万零四百；7,240,300七百二十四万零三百；7,234,000七百二十三万四千；723,400七十二万三千四百。四位数及其以上的数字，先从右至左数，每三位数加一个逗号，单位从小到大，分别为thousand，million和billion，百位和十位之间用and连接，整十和个位数之间用连字符“-”。故选C。 6．How do we say 5,094,821? A．five million and ninety-four thousand and eight hundred and twenty-one B．five million ninety-four thousand and eight hundred and twenty-one C．five millions and ninety-four thousands, eight hundreds and twenty-one D．five million, ninety-four thousand, eight hundred and twenty-one 【答案】D 【详解】句意：我们如何读“5,094,821”？ 考查英语大数读法规则。 根据英语中多位数字的读法，从右往左，第一个逗号读成thousand，第二个逗号读成million，百位数和十位数之间用and连接起来，故5,094,821读作：five million, ninety-four thousand, eight hundred and twenty-one。故选D。 7．—Excuse me, can you read the number “________” in English? —Of course. Six million, three hundred and sixty-three thousand. A．6,360,360 B．6,660,360 C．6,363,000 【答案】C 【详解】句意：——打扰一下，你能用英语读出这个数字“6,363,000”吗？——当然可以。六百三十六万三千。   考查数字的英文表达。给出的英文表达是“Six million, three hundred and sixty-three thousand”，写成数字为6,363,000。 故选C。 8．Sarah buys ________ books for her project and puts them on the ________ shelf of the library. A．fifth, five B．five, fifth C．five, five D．fifth, fifth 【答案】B 【详解】句意：莎拉为她的项目买了五本书，并把它们放在图书馆的第五个书架上。 考查基数词和序数词。five五，基数词；fifth第五，序数词。根据“buys … books for her project”可知，表示数量，第一空填基数词five；第二空指第五个书架，表示顺序，填序数词fifth。故选B。 9．—What should we do now, Mr Li? —Please turn to Page and look at the picture. A．Twelfth; fifth B．Twelve; fifth C．Twelve; five D．Twelfth; five 【答案】B 【详解】句意：——李老师，我们现在应该做什么？——请翻到第十二页看第五张图片。 考查数词的用法。Twelfth第十二，基数词；fifth第五，序数词；Twelve十二，基数词；fifth第五，序数词；Twelve十二，基数词；five五，基数词；Twelfth第十二，序数词；five五，基数词。根据“turn to Page…and look at the…picture.”可知，第一个空“Page+基数词” 表示“第几页”，用基数词；第二个空“the+序数词+名词” 表示 “第几个……”，用序数词。故选B。 10．December is the ________ month in a year. A．twelve B．twelfth C．twentieth 【答案】B 【详解】句意：十二月是一年的第十二个月。 考查序数词用法。twelve十二，基数词；twelfth第十二，序数词；twentieth第二十，序数词。根据“December is the…month in a year.”以及常识可知，十二月是一年的第十二个月，应用序数词表示顺序，应用twelfth。故选B。 11．Amy is ________ years old. Today is her ________ birthday. A．nine; nine B．nine; ninth C．nine; nineth 【答案】B 【详解】句意：艾米9岁了。今天是她9岁生日。 考查数词辨析。nine九，修饰复数名词；ninth第九，表顺序；nineth拼写错误。根据题意可知，years是复数名词，前空“基数词＋years old”表年龄，需用基数词nine；后空意思是“第九个生日”，需用序数词ninth。故选B。 12．My sister is ________ years old. Today is her ________ birthday. A．four; forth B．fourth; four C．four; fourth 【答案】C 【详解】句意：我的妹妹四岁了。今天是她的第四个生日。    考查数词辨析。four基数词，意为“四”；fourth序数词，意为“第四”。“years old”前需用基数词表示年龄，“birthday”前需用序数词表示“第几个生日”，“her fourth birthday”表示“她的第四个生日”。故选C。 13．—How old is your daughter? —________. We had a surprise party for her ________ birthday last Sunday. A．Twentieth; twentieth B．Twentieth; twenty C．Twenty; twentieth D．Twenty; twenty 【答案】C 【详解】句意：——你女儿多大了？——二十。上周日我们为她二十岁生日举办了一个惊喜派对。 考查数词。twenty二十，基数词；twentieth第二十，序数词。年龄用基数词，第二个空表达“第二十个生日”用序数词，故选C。 14．Mike held a party to celebrate his grandfather’s ________ birthday. A．eighties B．eighty C．eightieth D．the eightieth 【答案】C 【详解】句意：迈克举办了一个派对来庆祝他爷爷八十岁的生日。 考查序数词用法。eighties八十几；eighty八十；eightieth第八十；the eightieth第八十。表示“第几个生日”要用序数词，eighty的序数词是eightieth，且空前有名词所有格grandfather’s，此时序数词前不用the。故选C。 15．There are ______ children in my grandfather’s family, and he is the ______ one. A．twelve, ninth B．twelve, nine C．twelfth, nine D．twelfth, ninth 【答案】A 【详解】句意：我爷爷家有十二个孩子，他是第九个。 考查数词的用法。twelve十二，基数词；ninth第九，序数词；nine九，基数词；twelfth第十二，序数词。根据“There are ... children in my grandfather’s family”可知，第一空指十二个孩子，表示数量，应用基数词twelve；根据“he is the ... one”可知，他是第九个孩子，第二空表示顺序，应用序数词ninth。故选A。 16．This is the ________ time you’ve been late this week. A．three B．third C．thirteen D．thirty 【答案】B 【详解】句意：这是你本周第三次迟到了。 考查数词。three三；third第三；thirteen十三；thirty三十。根据“This is the…time you’ve been late this week.”的语境并结合选项可知，此处指迟到的次数，应用序数词，B项符合。故选B。 17．About three ________ fans went to this concert and ________ of them are girls. A．thousand; two third B．thousand; two thirds C．thousands of; two third D．thousands of; two thirds 【答案】B 【详解】句意：大约三千名粉丝参加了这场演唱会，其中三分之二是女孩。 考查概数和分数。thousand千；thousands of成千上万的；two thirds三分之二。thousand与具体数字连用时，通常不加复数词尾-s，也不后接介词of，第一空前有具体的数字，所以第一空使用thousand；分数构成：分子为基数词，分母为序数词，分子大于1时，序数词要用复数形式，第二空使用two thirds。故选B。 18．Yesterday, our class had a quiz. I answered ________ questions correctly, and ________ one was about the inventor of the light bulb. A．eight; three B．the eighth; the third C．eight; third D．eight; the third 【答案】D 【详解】句意：昨天我们班有一个测验。我正确回答了八个问题，其中第三个问题是关于灯泡的发明者。 考查数词用法。eight八；third第三。第一个空表示“八个”，应用基数词eight；第二个空表示“第三个问题”，应用序数词，序数词前常加the，故选D。 19．November is the ________ month of a year. A．eighth B．ninth C．tenth D．eleventh 【答案】D 【详解】句意：十一月是一年中第十一个月。 考查序数词用法。eighth第八；ninth第九；tenth第十；eleventh第十一。根据“November is the...month in a year.”和常识可知，十一月是一年中的第十一个月。故选D。 20．Li Ming will be ________. His parents are going to have a party for his ________ birthday. A．sixteen; sixteenth B．sixteenth; sixteenth C．sixteenth; sixteen 【答案】A 【详解】句意：李明将十六岁了。他的父母打算为他的十六岁生日举办一个聚会。 考查数词。sixteen十六，基数词；sixteenth第十六，序数词。第一空根据“will be”可知，此处应用基数词sixteen表示“十六岁”；第二空根据“birthday”可知，此处应用序数词sixteenth表示“第十六个生日”。故选A。 21．The Spring Festival of 2025 is on January ________. A．twentieth ninth B．twentieth nine C．twenty-ninth D．twentieth-nine 【答案】C 【详解】句意：2025年的春节是1月29日。 考查日期的表达方式。正确的表达日期的方式是使用序数词，强调具体日期“29日”应为序数词“twenty-ninth”。故选C。 22．The ______ Asian Winter Games opened in Harbin on February 7th, 2025. A．nine B．nineteen C．ninety D．ninth 【答案】D 【详解】句意：第九届亚洲冬季运动会于2025年2月7日在哈尔滨开幕。 考查序数词的用法。nine九，基数词；nineteen十九，基数词；ninety九十，基数词；ninth第九，序数词。the ninth Asian Winter Games“第九届亚洲冬季运动会”。故选D。 23．I got my __________ stamp when I was__________ years old. A．one; seven B．one; seventh C．first; seventh D．first; seven 【答案】D 【详解】句意：我七岁的时候得到了我的第一张邮票。 考查基数词和序数词。one一，基数词；seven七，基数词；seventh第七，序数词；first第一，序数词。第一空，根据“my … stamp”可知，此处是指“我”的第一张邮票，应用序数词表示顺序，排除A和B；第二空，根据“years old”可知，此处是指七岁，应用基数词表示数量，排除C。故选D。 24．Our Party was founded in 1921. We’ll celebrate her ________ birthday on July 1st this year. A．one hundred B．one hundredth C．the one hundredth D．the one hundred 【答案】B 【详解】句意：我们的党是1921年成立的。我们将在今年7月1日庆祝她的100岁生日。 考查序数词。one hundred一百，为基数词；one hundredth第一百，为序数词。根据“her ... birthday”可知，此处表示第一百个生日，要用序数词，第一百one hundredth，序数词前面有物主代词时，省略冠词。故选B。 25．—Saturday is the ________ of a week. —What about Sunday? A．seven day B．seventh days C．seventh day D．seven days 【答案】C 【详解】句意：——星期六是一周中的第七天。——星期天呢？ 考查序数词。根据“Saturday is the...of a week”以及常识可知周六是一周的第七天，用序数词seventh，其后加名词单数day。故选C。 26．My sister is ________ now. She had a party for her ________ birthday yesterday. A．twenty; twentieth B．twenty; twenty C．twentieth; twenty 【答案】A 【详解】句意：我姐姐现在二十岁了。昨天她为自己的二十岁生日举办了一个聚会。 考查数词。twenty二十，基数词；twentieth第二十，序数词。根据“My sister is ... now.”可知，此处表示年龄，应该用基数词；根据“She had a party for her ... birthday yesterday.”可知，此处用来修饰名词birthday，用序数词。故选A。 27．— How many new words are there in _________ lesson? — There are only _________. A．the twenty-first; the ninth B．the twenty-first; nine C．twenty-one; nine D．twenty-one; the ninth 【答案】B 【详解】句意：——第二十一课有多少个生词？——只有九个。 考查数次。根据“in ... lesson”可知此处表示第二十一课，用序数词，排除CD；再由“How many new words are there”可知回答具体数量，第二空用基数词nine，排除A。故选B。 28．Abraham Lincoln was ______ President of the United States. A．sixteen B．the sixteen C．sixteenth D．the sixteenth 【答案】D 【详解】句意：亚伯拉罕·林肯是美国第十六任总统。 考查数词。sixteen十六，基数词；sixteenth第十六，序数词。结合“Abraham Lincoln was...President of the United States”可知，此处指的是“第十六任总统”，应用序数词，且序数词前用定冠词the修饰，故选D。 29．I am going to send my mother a beautiful Gambiered Canton Gauze（香云纱）cheongsam（旗袍）for her ________ birthday. A．forty B．forties C．the fortieth D．fortieth 【答案】D 【详解】句意：我准备给我妈妈送一件漂亮的香云纱旗袍，作为她四十岁生日的礼物。 考查序数词。根据“her...birthday”可知是四十岁的生日，用序数词，且空前有形容词性物主代词，故序数词前不加冠词。故选D。 30．There are ________ students in our class. Bill was the ________ student to arrive today. ________ students arrived before he did. A．thirty-five; third; Two B．thirty-fifth, third; Two C．thirty-five; three; Second 【答案】A 【详解】句意：我们班有35名学生。比尔是今天到达的第三个学生。两个学生比他先到。 考查数词。第一空后是名词复数，应用基数词，排除B；第二空后student是单数名词，应用序数词，排除C。故选A。 二、单词拼写(本大题共20小题，每小题2分，共40分) 31．It is my time to Swan Lake Middle School as a visiting student. (two) 【答案】second 【详解】句意：这是我第二次作为交换生去天鹅湖中学。two二，基数词；根据语境可知，这里要用two的序数词形式second来表示“第二次”，“It is one’s+序数词+time to do sth.”是一个常用句型，意思是“这是某人第几次做某事”。故填second。 32．It is the time for Tom to be late for school. (eight) 【答案】eighth 【详解】句意：这是汤姆第八次上学迟到了。根据“the…time”以及提示词可知，此处指“第八次”，应用序数词eighth“第八”。故填eighth。 33．Today I got to school early. I am the . (one) 【答案】first 【详解】句意：今天我很早到学校。我是第一个（到的）。提示词“one”是基数词，意为“一；一个”，此处语境是说自己是最早到学校的，需要用序数词“first”表示“第一”。故填first。 34．The boy was the one to get to the playground. (four) 【答案】fourth 【详解】句意：这个男孩是第四个到达操场的人。根据“the...one to get to the playground.”以及所给单词提示可知，此处表示“第四个到达操场的人”，需要用four的序数词形式fourth“第四”来修饰单数名词“one”。故填fourth。 35．Broadway has been famous since the early (twenty) century. 【答案】twentieth 【详解】句意：百老汇自20世纪早期以来就闻名。根据“the early ... century”可知，此处表示“二十世纪初”，表示顺序应该用twenty的序数词twentieth“第二十”。故填twentieth。 36．My brother likes drawing, so I bought colored pencils for him on his birthday. (thirteen) 【答案】13th/thirteenth 【详解】句意：我弟弟喜欢画画，所以我在他十三岁生日的时候给他买了彩色铅笔。此处表示十三岁生日，应该用序数词。故填13th/thirteenth。 37．Today is my (twenty) birthday. 【答案】twentieth 【详解】句意：今天是我二十岁生日。根据“birthday”是单数形式，可以推测，此处表示“第二十个生日”，需用序数词。twenty意为“二十”，是基数词，其序数词形式为twentieth。故填twentieth。 38．The boy got his (twelve) gift on his birthday. 【答案】twelfth 【详解】句意：这个男孩在他生日那天收到了他的第十二份礼物。根据括号内提示词“twelve”及句子结构，此处需要将基数词“twelve”转换为序数词“twelfth”，表示顺序。故填twelfth。 39．This kind of novels were popular at the end of the ________ (ninety) century. 【答案】ninetieth 【详解】句意：这种小说在九十年代末很流行。表示多少世纪用序数词，ninety的序数词是ninetieth。故填ninetieth。 40．We enjoyed ourselves very much on my grandma’s _________birthday yesterday. (eighty) 【答案】eightieth 【详解】句意：昨天，我们在我奶奶的八十岁生日时玩的很开心。在某人多少岁生日时，应该用序数词，故答案为eightieth。 41．Li Ming will be sixteen. His parents are going to have a party for his (sixteen) birthday. 【答案】sixteenth 【详解】句意：李明将要十六岁了。他的父母打算为他的第十六个生日举办一场派对。根据“Li Ming will be sixteen. His parents are going to have a party for his... (sixteen) birthday.”以及汉语语境可知，此处表示“第十六个生日”，需要用序数词来修饰名词“birthday”。sixteen的序数词形式是sixteenth，意为“第十六”。故填sixteenth。 42．China has made great progress in the (twenty-one) century. 【答案】twenty-first 【详解】句意：中国在二十一世纪取得了巨大的进步。空格在定冠词和单数名词之间，填序数词twenty-first“第二十一”。故填twenty-first。 43．Joe broke his leg on the day of the holiday and couldn’t walk.  (five) 【答案】fifth 【详解】句意：Joe在假期的第五天摔断了腿，无法行走。空格前有定冠词the，说明需要填入序数词，表示顺序，“five"对应的序数词是“fifth”，固定用法：“the + 序数词 + day”表示“第……天”。故填fifth。 44．Turn left at the (nine) crossing, and you will see the hospital. 【答案】ninth 【详解】句意：在第九个十字路口左转，你就会看到医院。此处表示“第九”，用序数词ninth，故填ninth。 45．In the Twelve Chinese Zodiac Signs (十二生肖), the snake is the animal in order. (six) 【答案】sixth 【详解】句意：在中国十二生肖中，蛇是第六个动物。根据“In the Twelve Chinese Zodiac Signs (十二生肖), the snake is the…animal in order.”的语境及常识可知，蛇在十二生肖中排行第六，应用序数词sixth“第六”。故填sixth。 46．We will celebrate his (49) birthday next week. 【答案】forty-ninth/49th 【详解】句意：我们下周将庆祝他的49岁生日。根据“birthday”可知，此处应填入序数词表示“第49个生日”。故填forty-ninth/49th。 47．My grandpa often does sports, so I bought him s T-shirt for his (sixty) birthday. 【答案】sixtieth 【详解】句意：我爷爷经常做运动，所以我给他买了一件T恤作为他六十岁生日的礼物。根据“birthday”可知，这里表示生日，所以需要用序数词sixtieth。故填sixtieth。 48．There are (million) of birds singing in the trees in the forest. 【答案】millions 【详解】句意：有数百万只鸟在森林里的树上唱歌。空前没有具体的数字，应用复数形式，millions of“数百万计”，故填millions。 49．Some scientists agree that it may take (hundred) of years to make robots think like humans. 【答案】hundreds 【详解】句意：一些科学家认为，可能需要数百年的时间才能让机器人像人类一样思考。当“hundred”前没有具体数字时，要用复数形式“hundreds”，且与“of”连用，构成“hundreds of”，表示“数百的，成百上千的”。故填hundreds。 50．He took part in the games in his (forty) and won a medal. 【答案】forties 【详解】句意：他在40多岁时参加了比赛，并赢得了一枚奖牌。in one’s forties“在某人四十多岁时”。故填forties。 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 $$