中考英语语法特辑 数词.docx

1、中考英语语法特辑-数词1.基数词(1000以内的基数词的读法)(1)1-20：one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve，thirteen，fourteen，fifteen, sixteen，seventeen，eighteen，nineteen，twenty2.基数词变序数词的方法：(1)一般在基数词后加theg.fourfourth,thirteenthirteenth(2)不规则变化onefirst,twosecond,threethird,fivefifth,eighteighth,nineninth,t

2、welve-twelfth(3)以y结尾的十位整数,变y为ie再加thtwentytwentieth, fortyfortieth,ninetyninetieth(4)从二十一后的“几十几”直至“几百几十几”或“几千几百几十几”只将个位的基数词变为序数词。twenty-first,two hundred and forty-fifth口诀：基变序，有规律;词尾要加th。一二三，特殊记;词尾分别tdd。八去t ，九去e ;ve则以f替。ty 则变作 ti ; 后面还有一个e。要是遇到几十几;只将个位变成序。3.数词的应用：A、时间：a. 整点：基数词 + oclockeg. Its eight

3、oclock now.b. 几点几分：1.直接表达法：先小时后分eg. 3:25 three twenty-five2.间接表达法：先分后小时1)(30分钟)用to：(60-分钟数) to (小时数+1)eg. 3:35 twenty-five (minutes) to four3) 30分钟 = half 15分钟 = a quartereg. 3:30 three thirty = half past three3:15 three fifteen = a quarter past three.3:45 three forty-five = a quarter to fourB、日期表达法

4、：月日，年(或日月年)1949年10月1日 :October1st , nineteen forty-nine=the first of October, nineteen forty-nine2000年: the year two thousand=twenty hundred2022年: twenty o one3月1日: March the first = the first of MarchC、表编号：第207房间：Room 207第五课： Lesson 5 = the fifth lessonD、序数词与不定冠词(a; an)连用表“又一;再一”eg. Youve done it t

5、hree times. Why not try a fourth time?E、分数的表达：分子(基数)、分母(序数)eg. one third 三分之一 two thirds 三分之二注意： 1.分子超过1时，分母加s2.含分数的短语作主语由分数后的词决定谓语eg.1)One third of the students are girls.2)One third of the milk is mine.3.分数的特殊形式1)one third = a third2)one fourth = a quarterthree fourths = three quarters3)one second = a halfF、表约数：表不确定的数字时，数词用复数。若带名词，再加of如：hundreds of(数百，成百上千的)，thousands of(数干，成千上万的)，millions of(数百万的)G、数学运算的表达eg.3+5=8 Three plus/and five is eight.9-2=7 Nine minus two is seven.6x5=30 Five times six is thirty82=4 Eight divided by two is four.2