专题07. 数词-2025年新高考英语语法知识通关必备及母题对点精练

2025年新高考英语语法知识通关必备母题对点精练 专题07. 数词 核心考点思维导图 核心考点讲练 核心考点1. 数词的概念及分类 数词是用来表示数量或顺序的词。 1. 数词可以分为基数词和序数词。基数词是表数量多少的数词，如one、two、three...；序数词是表顺序先后的数词，如first、second、third...。 核心考点2. 基数词变序数词规则 规律 单词 一般后加th four →fourth，six→sixth, seven→seventh， ten→tenth， eleven→eleventh，thirteen→thirteenth，fourteen→fourteenth， hundred→hundredth， 1.2.3特殊记 one→first，two→second，tree→third 8去t, 9去e, ve要用f替 eight→eighth，nine→ninth，five→fifth，twelve→twelfth 几十ty要变tie twenty→twentieth，thirty→thirtieth，forty→fortieth，fifty→fiftieth 若是遇到几十几只变个位就可以 twenty-one→twenty-first，thirty-five→thirty-fifth 对点精练 语法填空 1. (2023年全国甲卷) Fables were part of the oral tradition of many early cultures, and the well-known Aesop’s fables date to the _______ (six) century, B. C. 2. (2022年全国新高考1卷·56) I’ve always loved the ocean. In the_______ (seven) grade, I started volunteering at the Monterey Bay Aquarium in California. 3. (2019年全国Ⅱ卷改编) Then, when I was in the _______(five) grade, I wanted to be a teacher because I liked my English teacher very much. 4. (2017全国Ⅰ卷改编)In the summer holiday following my _______(eighteen) birthday, I took driving lessons. 答案速对 1. sixth 2. seventh 3. fifth 4. eighteenth 核心考点3. 数词的常见用法及短语 1. 基数词表数量，但要区分确指和泛指：two thousand people 两千人 thousands of people 数以千计的人们；表达在某人几十多岁时需用整时数的复数：in his thirties 在他三十多岁；in her seventies 在她70多岁时；表达年代：in the 1990s 在20世纪90年代; 一个半的表达：one/an hour and a half或one and a half hours。 2. 序数词表顺序，序数词前一般有the或限定词修饰：Tom lived on the third floor. This is my twentieth birthday; 序数词的常用法还有：名词前有序数词修饰时常用to to 不定式作后置定语，有时该名词还可省略：China is the first (country) to make paper. ;It is/was the first/second...time that sb has/had done sth. 例如It was the first time that he had been out alone. 3. 分数及百分数的表达：分数由 基数词（分子） + 序数词（分母） 构成，分子为1时，分母用单数形式；分子大于1时，分母用复数形式。例：1/3 → one-third 或 a third ；2/5 → two-fifths ；3/4 → three quarters（常用）或 three fourths 。注意特殊分数的表达1/2 必须用 a half 或 one half，不可用 “a second”；1/4 可表达为 a quarter 或 one fourth；3/4 为 three quarters 。百分数由 基数词 + percent 构成，符号 “%” 读作... percent：60% → sixty percent ；0.5% → zero point five percent。 4. 倍数的表达方法：A + be + 倍数 + as + 形容词原级 + as + B表示“A是B的..倍”：This tree is three times as tall as that one. 这棵树是那棵树的三倍高。；A + be + 倍数 + 比较级 + than + B 表A是B的...倍长：This rope is twice longer than that one.这根绳子是那根绳子的两倍长/比那根长一倍；A + be + 倍数 + the + size/length/height等 + of + B表A在体积/长度/高度上是B的..倍：The earth is 49 times the size of the moon. 地球体积是月球的49倍。 5. 数词的重要短语 in his forties 在他40多岁 hundreds/housands/millions of 数以百/千/万计的 win (the) second place 获得第二名 at the age of 20 在20岁 try a third time再尝试一次（已尝试两次） one by one 一个接一个地 one after another 一个又一个，连续不断地 in pairs 成双成对，两人一组的 in two and three 三三两两 at sixes and sevens 乱七八糟 对点精练 语法填空 1. (2020年全国Ⅱ卷) The plum trees are _________ first to flower even as the snow is melting(融化)．They represent the promise of spring and a renewal of life.He made quite a few friends during his _________(twenty)． 2. It is reported that the earthquake has left _________ (thousand) of people homeless. 3. Yuri Gagarin became the first man _________ (fly) in space. 4. It was the third time that one of his cars _________ (go) up in flames. 5. However, in the urban district of Beijing houses along hutongs still occupy one _______ (three) of the total area, providing housing for half of the population. 6. Two _______(three) of the students in our class have been to Disneyland somewhere. 答案速对 1. The 2. twenties 3. thousands 4. to fly 5. had gone 6. thirds 7. thirds 原创精品资源学科网独家享有版权，侵权必究！ 学科网（北京）股份有限公司 $$