新概念英语第一册 语法点归纳学案 Lesson48（含练习答案）

中小学教育资源及组卷应用平台 新概念英语第一册 语法点总结 Lesson48 序数词： 是用于表示顺序 常用序数词 1st first 2nd second 3rd third 21st twenty-first 22nd twenty-second 23rd twenty-third 100th one hundredth 1,000th one thousandth 1,000,000th one millionth 1,000,000,000th one billionth 两位数和三位数及以上数字的序数词变法： 两位的数字，将个位数变为序数词，中间加连字符“-”, 例：第21： twenty-first 三位或三位以上的数字，将最后两位数变为序数词，中间用and连接。 例: 第261：two hundred and sixty-first 2.英语的序数词基本变法 一般在基数词后加 -th; -e 结尾的去掉 e 加 -th; -ve 结尾的改为 -fth; -ty结尾的改为-tieth; 熟记特殊词。 3.两位数以上的序数词仅个位数部分用序数词, 其余部分仍用基数词 第26→twenty-sixth 第501→five hundred and first 第6660→six thousand six hundred and sixtieth 4. 前面冠词的用法: 在序数词前面用定冠词、不定冠词和零冠词，意思会是天壤之别： 使用序数词时一般加定冠词 the，表示顺序。 Summer is the second season of the year. 夏天是一年中第二个季节。 I'm in the second row. 我在第二排。 作名词 The third of the race will get the car. 比赛的第三名会得到一辆车。 3）序数词前用不定冠词，表示“又（另）一”： This is a second book I read today. 这是我今天阅读的另一本书。 Shall I ask him a third time ？我要不要再问他第三次呢？ When I sat down，a fourth man rose to speak. 当我坐下时，第四个人站起来发言。 4）在习惯用语和专有名词前，不用冠词： 例如：at first 最初 first of all 首先 5) 序数词前面有所有格、物主代词或形容词等限定词的： It ‘s my second novel. 这是我的第二本小说。 基数词在句中主要用作主语、宾语、定语、表语、同位语: 作主语： the first is my brother. 作宾语：She is among the first to become a teacher in the family. 作表语：She is the first to come. 作同位语：The woman, the first in the line,is our Chinese teacher. 作定语： Monday isn't the first day of the week. 序数词作"几分之几"讲时，分子用基数词表示，分母用序数词表示。分子大于 1 时，分母加 -s ： 1/5→one fifth 2/3→two thirds 4/7→four sevenths 50%→fifty hundredths 或者fifty percent 表示年，月，日时， 年用基数词表示，日用序数词表示。 1949 年10月1 日 读作：October (the) first, nineteen sixty 2004 年9月10日 读作：September (the) tenth, two thousand and four 【基数词&序数词】练习： Choose the best answer ( )1. Please turn to _____. A. Page 11 B. the 11 st page C. page 11 D. page the 11 th ( )2. At night we can see _____ stars in the sky. A. thousands and thousands of B. thousand and thousands of C. a thousand and thousands D. thousand and thousand ( )3. There are some _____ in our classroom. hundred of books B. the hundreds of books C. hundreds of books D. hundred of book ( )4. I have been to the village _____. A. a hundred time B. hundred times C. hundreds of times D. hundred of times ( )5. There are ____ students in our school. A. four—hundred and forty—five B. four hundred and forty—five C. four hundreds and forty—five D. four hundred and forty five ( )6. The teacher told me to go over _____ lessons. A. thirst three B. the three first C. three the first D. the first three ( )7. May is ____ ... ...