Unit 2 Amazing numbers 语法专项训练 2026-2027学年沪教版英语八年级上册

**基本信息** 聚焦数词用法，通过词形转换、选择、拼写、补全句子及语篇填空，系统构建从序数词构成到概数表达的知识逻辑，提升语言运用能力。 **专项设计** |模块|题量/典例|题型特征|知识逻辑| |----|-----------|----------|----------| |词形转换|10题|序数词转换|序数词构成规则（one→first等）| |单项选择|10题|数词搭配辨析|确定数目（five thousand）与不确定数目（thousands of）用法| |单词拼写|13题|语境填词|数词在具体语境中的正确形式（如“第一百”→hundredth）| |完成句子|4题|短语补全|概数表达固定短语（thousands of, millions of）| |短文填空|6题|语篇综合应用|数词在时间、数量等语篇情境中的综合运用|

Unit2 Amazing numbers 语法专项训练 学校:___________姓名：___________班级：___________考号：___________ 一、根据括号内的提示，写出正确的单词形式。 1．one ________ (序数词) 2．twelve ________ (序数词) 3．hundred ________ (复数，表不确定数目) 4．five ________ (序数词) 5．twenty ________ (序数词) 6．three ________ (序数词) 7．nine ________ (序数词) 8．forty ________ (序数词) 9．million ________ (复数，表不确定数目) 10．eight ________ (序数词) 二、单项选择 11．There are ________ students in our school. A．five thousand B．five thousands C．thousand of 12．Because of Project Hope, ________ children have better lives. A．thousand B．thousands C．thousands of 13．The school has ________ students. A．three thousand and B．three thousand C．three thousand of 14．Lisa finished the race in ________ place. A．Three B．third C．the three 15．My birthday is on the ________ of July. A．twenty-one B．twenty-one’s C．twenty-first 16．The musician Mozart wrote many famous works ________. A．in his thirties B．in his thirty C．at his thirties 17．—When did your uncle join the army? —In his ________. A．twenties B．twenty C．twentieth 18．Today is the ________ day of the month. A．twelfth B．twelve C．twelveth 19．Nowadays, ________ people leave their hometowns to search for work in the cities. A．two millions B．million of C．millions of 20．When my father was ______, he became a doctor in a big hospital. A．at twenties B．in his twenties C．at twenty 三、单词拼写 21．She won the ________ (one) prize in the math competition. 22．________ students take part in after-school activities every term.(成千上万的) 23．About one ________ (十亿) people around the world use the Internet every day. 24．Kunming welcomes ________ tourists to spend the winter here. (数以百万计的) 25．Tom was _________ (第二名) to get to school this morning. 26．This is the ________ (two) time I have visited the museum. 27．The population has ________ (double) in the past ten years. 28．This room is ________ (两倍) as big as that one. 29．The university is going to celebrate its ________ (第一百) birthday this July. 30．My sister bought my grandpa a cake to celebrate his ________ (90) birthday. 31．Three ________ (thousand) students took part in the maths competition. 32．He was the ________ (one) student to work out the problem. 33．Alice’s mother decides to go to college in her _________. (五十) 四、完成句子 34．每年有成千上万的游客来我们的城市度假。 ________ ________ tourists come to our city on vacation every year. 35．这是一所古老的学校，几百年前就有了。 It’s an old kind of school, from ________ years ago. 36．每20分钟就会有成百上千的游客涌向火车站。 ________ ________ visitors run to the train station every twenty minutes. 37．在贵州，数百万年轻人正在为实现梦想而努力。 In Guizhou, ________ ________ young people are working hard to achieve their dreams. 五、短文填空 Numbers are amazing and play an important role in our daily life. The 38 (one) people used tally sticks to count things. Later, they created different symbols for numbers. Now we use numbers to do many things. For example, we use them to make a budget. If you save 39 (two) hundred yuan every month, you will have 2,400 yuan a year. We also use numbers to show dates. Our National Day is on October the 40 (one). What’s more, numbers can show quantities. 41 (thousand) of people use numbers to plan their journeys every day. Numbers are also important in games. A king once challenged a wise man to a game. He promised to give the man rice on the chessboard: one grain on the 42 (one) square, two on the 43 (two), four on the 44 (three), and so on. He thought it was easy, but he soon realized he couldn’t keep his promise—even all the rice in the country was not enough. We can’t live without numbers. Let’s learn to use them well! 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 $ Unit2 Amazing numbers 语法专项训练 学校:___________姓名：___________班级：___________考号：___________ 一、根据括号内的提示，写出正确的单词形式。 1．one ________ (序数词) 2．twelve ________ (序数词) 3．hundred ________ (复数，表不确定数目) 4．five ________ (序数词) 5．twenty ________ (序数词) 6．three ________ (序数词) 7．nine ________ (序数词) 8．forty ________ (序数词) 9．million ________ (复数，表不确定数目) 10．eight ________ (序数词) 【答案】 1．first 2．twelfth 3．hundreds 4．fifth 5．twentieth 6．third 7．ninth 8．fortieth 9．millions 10．eighth 二、单项选择 11．There are ________ students in our school. A．five thousand B．five thousands C．thousand of 【答案】A 【详解】句意：我们学校有五千名学生。 five thousand五千；five thousands五千（错误复数形式）；thousand of数千的（错误搭配）。当thousand前有具体数字时，thousand用单数形式，后面不加of；表示不确定数目时，用thousands of。此处表示具体数目“五千”，应用five thousand。 12．Because of Project Hope, ________ children have better lives. A．thousand B．thousands C．thousands of 【答案】C 【详解】句意：因为希望工程，成千上万的孩子们过上了更好的生活。 考查数词。thousand与具体数字连用时用单数，表示概数“成千上万”时用复数形式，且后接of，即thousands of。本题中未出现具体数字，且children为复数，需用thousands of表示“成千上万的”。故选C。 13．The school has ________ students. A．three thousand and B．three thousand C．three thousand of 【答案】B 【详解】句意：这所学校有三千名学生。 考查数词用法。three thousand and表述错误，and用于百位和十位之间连接，不用于千位后直接接名词；three thousand表示“三千”，当thousand前有具体数字时，用单数形式且不接of；three thousand of表述错误，thousands of才是“成千上万的”的正确表达，前面不能加具体数字。因此，“三千名学生”的正确表达是three thousand students。故选B。 14．Lisa finished the race in ________ place. A．Three B．third C．the three 【答案】B 【详解】句意：丽莎在比赛中获得了第三名。 考查序数词用法。three三，基数词；third第三，序数词；the three 这个三，定冠词+基数词。表示“第几名”时，应用序数词，此处in third place为固定搭配，序数词前不加the。故选B。 15．My birthday is on the ________ of July. A．twenty-one B．twenty-one’s C．twenty-first 【答案】C 【详解】句意：我的生日是七月二十一日。 考查数词用法。twenty-one是基数词，意为“二十一”；twenty-one’s是名词所有格形式；twenty-first是序数词，意为“第二十一”。根据“the...of July”的结构，表达“几月几日”中的“几日”需要用序数词，且“第二十一”的正确拼写为twenty-first。故选C。 16．The musician Mozart wrote many famous works ________. A．in his thirties B．in his thirty C．at his thirties 【答案】A 【详解】句意：音乐家莫扎特在他三十多岁时创作了许多著名的作品。 表示“在某人几十岁时”，固定搭配为“in one’s + 整十数的复数形式”。此处指“在他三十多岁时”，应用in his thirties。B项thirty需用复数，C项介词应用in，应填in his thirties。 17．—When did your uncle join the army? —In his ________. A．twenties B．twenty C．twentieth 【答案】A 【详解】句意：——你叔叔什么时候参军的？——在他二十多岁的时候。 twenties二十的复数形式；twenty二十；twentieth第二十。根据“In his…”可知，此处表达的是“在他二十多岁的时候”，英语中表达不确定的年龄范围用“in one’s+整十的复数形式”，应填twenties。 18．Today is the ________ day of the month. A．twelfth B．twelve C．twelveth 【答案】A 【详解】句意：今天是这个月的第十二天。 考查数词辨析。twelfth是序数词，意为“第十二”；twelve是基数词，意为“十二”；twelveth是错误的拼写形式。根据“the...day of the month”的结构，表达“第几天”需要用序数词，且“第十二”的正确拼写为twelfth。故选A。 19．Nowadays, ________ people leave their hometowns to search for work in the cities. A．two millions B．million of C．millions of 【答案】C 【详解】句意：如今，数百万人离开他们的家乡去城市寻找工作。 考查数词。million“百万”，和具体数字连用时，不加s，也不用of；当表达不确定的大数量时，后加s和of，millions of表示“数以百万计的”。故选C。 20．When my father was ______, he became a doctor in a big hospital. A．at twenties B．in his twenties C．at twenty 【答案】B 【详解】句意：当我的爸爸二十多岁时，他在一家大医院成为了一名医生。 考查年龄表达法。at twenties为错误表达；in his twenties在他二十多岁时，用于描述某人处于20至29岁这个年龄段；at twenty在他二十岁时，指具体的某一岁。英语中常用in one’s twenties表示在某人二十多岁时，表达的是一个相对宽泛的“时期”或“人生阶段”。故选B。 三、单词拼写 21．She won the ________ (one) prize in the math competition. 【答案】first 【详解】句意：她在数学竞赛中获得一等奖。定冠词the后接序数词；one为基数词，意为“一”，对应的序数词为first，first prize表示“一等奖”。 22．________ students take part in after-school activities every term.(成千上万的) 【答案】Thousands of 【详解】句意：成千上万的学生每学期参加课外活动。“成千上万的”固定短语是thousands of，后接可数名词复数；位于句首首字母需要大写。故填Thousands of。 23．About one ________ (十亿) people around the world use the Internet every day. 【答案】billion 【详解】句意：全世界每天约有十亿人使用互联网。根据中文提示“十亿”，对应英文数词billion，空前有具体数字one，billion用单数形式，故填billion。 24．Kunming welcomes ________ tourists to spend the winter here. (数以百万计的) 【答案】millions of 【详解】句意：昆明欢迎数以百万计的游客来这里过冬。“数以百万计的”英文表达为millions of，后接可数名词复数。故填millions of。 25．Tom was _________ (第二名) to get to school this morning. 【答案】the second 【详解】句意：汤姆是今天早上第二个到学校的人。 第二名/第二个：the second；此处使用序数词，表示顺序，即汤姆是今天早上第二个到学校的人。故填the second。 26．This is the ________ (two) time I have visited the museum. 【答案】second 【详解】句意：这是我第二次参观这个博物馆。句中有定冠词the，后面需要使用序数词表示顺序，two是基数词，它的序数词形式为second，the second time表示“第二次”，故填second。 27．The population has ________ (double) in the past ten years. 【答案】doubled 【详解】句意：在过去十年里，人口数量翻了一倍。句中“in the past ten years”是现在完成时的标志词，结构为have/has+动词过去分词。double的过去分词直接加-d，故填doubled。 28．This room is ________ (两倍) as big as that one. 【答案】twice 【详解】句意：这个房间是那个房间的两倍大。根据汉语提示“两倍”，倍数表达固定结构“倍数+as+形容词原级+ as”中，“两倍”对应的英文单词为twice。 29．The university is going to celebrate its ________ (第一百) birthday this July. 【答案】hundredth 【详解】句意：这所大学今年七月将庆祝它的百岁生日。根据“its ... birthday”可知，表示该大学的第一百个生日，用序数词hundredth，空前有物主代词its，那么就不需要冠词the。故填hundredth。 30．My sister bought my grandpa a cake to celebrate his ________ (90) birthday. 【答案】ninetieth 【详解】句意：我妹妹给我爷爷买了一个蛋糕来庆祝他的九十岁生日。在英语中，表示某人的多少岁生日时，通常使用序数词；“90”意为“九十”，其序数词是ninetieth，表示“第九十个生日”。故填ninetieth。 31．Three ________ (thousand) students took part in the maths competition. 【答案】thousand 【详解】句意：三千名学生参加了这场数学竞赛。thousand前面有具体数词Three修饰时，thousand必须使用单数形式，因此填thousand。 32．He was the ________ (one) student to work out the problem. 【答案】first 【详解】句意：他是第一个解出这道题的学生。空前“the”为定冠词，后接序数词表示“第……个”。one的序数词为first，意为“第一”。 33．Alice’s mother decides to go to college in her _________. (五十) 【答案】fifties 【详解】句意：爱丽丝的妈妈在她五十多岁的时候决定去上大学。“in one’s+逢十的基数词的复数形式”表示“在某人几十岁的时候”，fifty“五十”，其复数形式为fifties。故填fifties。 四、完成句子 34．每年有成千上万的游客来我们的城市度假。 ________ ________ tourists come to our city on vacation every year. 【答案】 Thousands of 【详解】原句中“成千上万的”是关键词，成千上万的用固定短语thousands of表示，后接可数名词复数；thousand前面无具体数字时，要加‑s并搭配of。句首首字母大写。故填Thousands；of。 35．这是一所古老的学校，几百年前就有了。 It’s an old kind of school, from ________ years ago. 【答案】hundreds of 【详解】原句中“几百”是关键词，表示“几百”的短语为“hundreds of”。故填hundreds of。 36．每20分钟就会有成百上千的游客涌向火车站。 ________ ________ visitors run to the train station every twenty minutes. 【答案】 Hundreds of 【详解】根据中英文对照可知，此处缺少“成百上千的”，应填hundreds of，句首首字母要大写。故填Hundreds；of。 37．在贵州，数百万年轻人正在为实现梦想而努力。 In Guizhou, ________ ________ young people are working hard to achieve their dreams. 【答案】 millions of 【详解】原句中“数百万”是关键词，为固定短语millions of，是概数表达，此时million必须用复数形式，且后面加of。 五、短文填空 Numbers are amazing and play an important role in our daily life. The 38 (one) people used tally sticks to count things. Later, they created different symbols for numbers. Now we use numbers to do many things. For example, we use them to make a budget. If you save 39 (two) hundred yuan every month, you will have 2,400 yuan a year. We also use numbers to show dates. Our National Day is on October the 40 (one). What’s more, numbers can show quantities. 41 (thousand) of people use numbers to plan their journeys every day. Numbers are also important in games. A king once challenged a wise man to a game. He promised to give the man rice on the chessboard: one grain on the 42 (one) square, two on the 43 (two), four on the 44 (three), and so on. He thought it was easy, but he soon realized he couldn’t keep his promise—even all the rice in the country was not enough. We can’t live without numbers. Let’s learn to use them well! 【答案】38．first 39．two 40．first 41．Thousands 42．first 43．second 44．third 【导语】本文是一篇说明文，介绍数字在日常生活、财务、日期、数量、游戏等场景中的重要作用。 【详解】38．句意：最早的人们用刻痕计数。此处修饰名词people，需要序数词表示“最早的人们”，one对应的序数词是first。 39．句意：如果你每个月存两百元，一年就会有2400元。hundred前有具体数字时，直接用基数词two修饰hundred，无需变形，因此填two。 40．句意：我们的国庆节在10月1日。日期表达中，定冠词the后搭配序数词表示日期，one的序数词为first，October the first表示“十月一日”。因此填first。 41．句意：每天成千上万的人用数字规划行程。表示模糊数量“成千上万”用固定搭配thousands of，单词位于句首首字母大写，因此填Thousands。 42．句意：他许诺在棋盘上给智者大米：第一格放一粒米，第二格两粒，第三格四粒，以此类推。定冠词the后接序数词表示顺序“第几格”，此处表示“棋盘第一个格子”，one的序数词是first。 43．句意：他许诺在棋盘上给智者大米：第一格放一粒米，第二格两粒，第三格四粒，以此类推。定冠词the后接序数词表示顺序“第几格”，此处表示“第二个格子”，two对应的序数词为second。 44．句意：他许诺在棋盘上给智者大米：第一格放一粒米，第二格两粒，第三格四粒，以此类推。定冠词the后接序数词表示顺序“第几格”，此处表示“第三个格子”，three对应的序数词为third。 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 $