1、中考英语知识点,数词,数 词,基数词,序数词,数量,顺序,基数词的构成,1）112, 独立成词。one two three four five six seven eight nine ten eleven twelve2）13-19, 由39 + teen构成。14fourteen 16-sixteen 17-seventeen 19nineteen特殊拼写: 13 thirteen 15-fifteen 18eighteen3）2090, 以-ty结尾。20twenty 30-thirty 40forty 50fifty 80-eighty 60-sixty 70-seventy 90ni
2、nety 4）2199， 两位数，十位与个位之间有 “”。21 twentyone 55 fiftyfive 99 ninetynine5）101999，三位数，百位与十位/个位之间加and。101 one hundred and one840 eight hundred and forty693 six hundred and ninety-three,29,431,500,7,6,thousand,hundred,million,billion,and,6) 1，000以上数目,从右向左每三位用“，”分开,分别读为thousand , million, billion,基数词的构成,序数词
3、的构成,基数词变序数词的方法：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。 eg. onefirst twosecond threethird eighteighth nineninth twelvetwelfth twentytwentieth twenty-one -twenty-first,数词的应用,一.时刻表达法：(介词用at） 1.整点：基数词 + oclock eg. Its eight oclock now. 2.几点几分： .直接表达法：先小时后分eg.
4、 3:25 three twenty-five .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 four 3) 30分钟 = half 15分钟 = a quarter eg. 3:30 three thirty = half past three3:15 three fifteen = a quarter past three.3:45 three forty-five = a quarter to four,数词的应用,二.日期表达法： 年用基数词表示,两位一读,介词用in 日用序数
5、词表示,介词用on 1999 nineteen ninety-nine 2008 two thousand and eight 1949年10月1日 读作: October (the) first, nineteen forty-nine (月-日，年)the first of October, nineteen forty-nine（日-月，年） 写作: October 1st,1999(日用缩写，月-日-年)October 1, 1999 (日用数字)1st October,1999日-月，年 2.表示“在世纪”, 用序数词在20世纪 写作：in 20th century 读作：in th
6、e twentieth century,数词的应用,三.表编号 编号在前，名词在后，用序数词，前面有the 编号在后，名词在前，用基数词，注意首字母大写 房间号码和电话号码要一个一个分别读 第一课第32页第305房间第12路公共汽车,Bus No.12,The First Lesson（在句子中不大写）Lesson One,The thirty-second pagePage 32 / Page Thirty-two,Room 305,数词的应用,四.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
7、.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 third 2)one fourth = a quarter three fourths = three quarters 3)one second = a half 半年 half a year 半小时 half an hour 一年半 one and a half yearsone year and a half,五.序数词作定语，前面要加the； T
8、he first truck is carrying a food basketJohn lives on the fifteenth floorShe is my first English teacher. (2)有时加a/an，“再一”，“又一” 的意思 Well have to do it a second time Shall I ask him a third time？When I sat down，a fourth man rose to speakThey had a second child in 1988,数词的应用,六.表示具体数目,hundred, thousand,
9、 million不用复数表示不确定数目,用复数。即hundreds of(数百),thousands of(数千), millions of(数百万)+ 名词复数,可以用many/several修饰，但不能与具体数目连用。1) Our country has a population of 1,300 million people.2) There are three thousand students in our school.3) After the war, thousands of people became homeless.4) Several / Many thousands
10、of trees must be planted every year.,数词的应用,七.其他 “几十”的复数形式可以表示：几十多岁 - in + ones + 数词复数年 代 - in + the +数词复数1) He died in his forties四十多岁2) In the nineties, most people go to work by bike.90年代 3、“基数词+名词” 的合成形容词作定语，中间有连字符“”,当中的名词用单数。an 8 year old girl a seven-day holiday 4、表计量- “基数词+度量单位+形容词”The classroom is 7 meters long, 6 meters wideand 3 meters high.,数词的应用,
