2019人教版高中英语语法综合复习全解：数词 ppt课件

1、高中语法综合复习全解; P2-2Numeral;Do the exercises individually, and then check your answers with your partners.;Now check your answers1-4DDDB6-8ACAC;数数词词 基数词基数词 序数词序数词数量数量顺序顺序表示数目和顺序的词叫数词。表示数目和顺序的词叫数词。;点击欣赏点击欣赏“数词之歌数词之歌;考点题例一考点题例一1. If a = 4, b = 5, whats the answer to the question “a + 2ab + 1=? _. A. Forty

2、-fifth B. Forty-five C. Twenty-three D. One hundred and twenty-one【解析】基数词表示人或事物的数量，而【解析】基数词表示人或事物的数量，而序数词表示人或事物的次序。序数词表示人或事物的次序。;2. There are 60 students in my class and 44 of them use we chat very often. 44? That means about _ of your classmates are we chat users, right? A. half B. one third C. two

3、 thirds D. three quarters【解析】表达分数时，分子用基数词，分母【解析】表达分数时，分子用基数词，分母用序数词；分子大于用序数词；分子大于1时，分母要在序数词后时，分母要在序数词后面加面加-s。在表达四分之几时，要用。在表达四分之几时，要用quarter与与基数词搭配来表示基数词搭配来表示(如：四分之三如：四分之三 three quarters)。表达二分之一时通常用。表达二分之一时通常用one half或或a half表示。表示。;3. There are over _ students in their school. A. hundreds B. nine hun

4、dreds C. hundreds of D. nine hundred【解析】当基数词与【解析】当基数词与 hundred, thousand, million, billion 连用，表示详细的连用，表示详细的“几百、几几百、几千、几百万、几十亿时，这些词后不加千、几百万、几十亿时，这些词后不加-s。如如 two hundred books, three thousand trees, four million people, five billion seconds。;112,独立成词。独立成词。 one two three four five six seven eight nine

5、ten eleven twelve13-19,由由39 + teen构成。构成。 14fourteen 16sixteen 17seventeen 19nineteen 特殊拼写特殊拼写: 13 thirteen 15fifteen 18eighteen基数词的构成基数词的构成;2090,以以-ty结尾。结尾。 20twenty 30 thirty 40forty 50fifty 60 sixty 70 seventy 80 eighty 90ninety 2199,两位数两位数,十位与个位之间加十位与个位之间加“。 21 twentyone 55 fiftyfive 99 ninetynin

6、e; 101999，三位数，百位与十位，三位数，百位与十位/个位之个位之间加间加and。 101 one hundred and one 840 eight hundred and forty 693 six hundred and ninety-three 1，000以上数目以上数目,从右向左每三位用从右向左每三位用“， 分开分开,分别读为分别读为thousand , million, billion 。6 , 500 ,431,7 29billionmillionthousandhundredand;基数词的用法基数词的用法 表示详细数目表示详细数目,hundred, thousand,

7、million不用复数。表示不确定数目不用复数。表示不确定数目,用复数。用复数。即即hundreds of(数百数百), thousands of(数千数千), millions of(数百万数百万)+ 名词复数名词复数, 可以用可以用many/several修饰，但不能与详细数目连用。修饰，但不能与详细数目连用。 Our country has a population of 1,400 million people. After the war, thousands of people became homeless.;“几十的复数方式可以表示：几十的复数方式可以表示： 几十多岁几十多岁

8、in + ones + 数词复数数词复数 年年 代代 in + the +数词复数数词复数 He died in his forties In the nineties, most people go to work by bike.“基数词基数词+名词名词 的合成描画词作定语的合成描画词作定语, 中间中间有连字符有连字符“,当中的名词用单数。当中的名词用单数。 a 3 year old girl a seven-day holiday表计量表计量 “基数词基数词+度量单位度量单位+描画词描画词 The classroom is 7 meters long, 6 meters wide and

9、 3 meters high.; 表示时辰表示时辰 ( (介词用介词用at)at)1)1)顺读法顺读法先时后分先时后分,“,“几点几分几点几分 9:30 nine thirty 9:30 nine thirty 6:21 six twenty-one 6:21 six twenty-one 2)2)逆读法逆读法先分后时先分后时 a. a. 表示表示“几点过几分几点过几分, ,半小时以内半小时以内, , 介介词用词用past, past, 分钟数分钟数+past +past +钟点数。钟点数。 10:10 ten past ten 10:10 ten past ten 8:20 twenty p

10、ast 8:20 twenty past eighteight;b. 表示表示“几点差几分几点差几分, 半小时以上半小时以上, 介词用介词用 to, 60减原分钟减原分钟+ to + (下一个下一个)钟点数。钟点数。 9:50 ten to ten 7:40 twenty to eightc.15分钟：分钟：a quarter 30分钟：分钟：a half 9:15 a quarter past nine 12:30 half past twelve;举一反三举一反三1.After the Asian Games, _ people came to Guangzhou for a visit

11、during holidays. A. thousand B. thousands of C. five thousands D. thousand of2.My brother was born in _, when my grandfather was in _.A. the eighties; his eighty B. eighties; his eightiesC. the eighties; his eighties D. eighty; eighty;3. Its said that a new factory is being built now. Yeah. It will

12、take _. A. one and half years B. a half and a year C. a year and half D. one and a half years;考点题例二考点题例二1. May I sit here? Sorry. _ rows are reserved for special guests. A. First three B. The three first C. The first three D. Three first2. It is reported that the United States uses _ energy as the w

13、hole of Europe. A. as twice B. twice much C. twice much as D. twice as much ; 13, first, second, third 。 419, 相应基数词相应基数词+th, 特殊拼写特殊拼写: fifth, eighth, ninth, twelfth。 2090, y变成变成ie +th,如如twentieth。 2199, 只把个位的基数词变成序数词，只把个位的基数词变成序数词，如如twenty-first。 序数词缩写序数词缩写数字最后两字母，数字最后两字母， 如如 1st, 2nd, 3rd ,4th序数词的构

14、成序数词的构成;基变序基变序,有规律有规律,一、二、三，特殊记，面目全非要留意，一、二、三，特殊记，面目全非要留意，加加th从从4起，起，八少八少“t，九去，九去“e，“ve要用要用“f替，替，(five, twelve)见见“y变成变成“i和和“e，词尾加上，词尾加上“th，(twenty, thirty,ninety)假设是遇到几十几，只变个位就可以。假设是遇到几十几，只变个位就可以。序数词缩写记清楚序数词缩写记清楚,数字后跟两字母。数字后跟两字母。序数词构成规律序数词构成规律; 序数词作定语，前面要加序数词作定语，前面要加the； The first truck is carrying

15、a food basket John lives on the fifteenth floor有时加有时加a/an，“再一，再一，“又一又一 的意思。的意思。 We ll have to do it a second time Shall I ask him a third time？ They had a second child in 1988.序数词的用法序数词的用法;分子用基数词，分母用序数词。分子用基数词，分母用序数词。分子大于分子大于1时，分母加时，分母加-s。1/4 one-fourth a (one) quarter3/4 three-fourths three quarter

16、s 2/3 two-thirds 1/2 a (one) half 半年半年 half a year 半小时半小时 half an hour一年半一年半 one and a half years one year and a half分数表示法分数表示法;编号在前，名词在后，用序数词，前面有编号在前，名词在后，用序数词，前面有the编号在后，名词在前，用基数词，留意首字母大写编号在后，名词在前，用基数词，留意首字母大写房间号码和号码要一个一个分别读。房间号码和号码要一个一个分别读。第一课第一课 The First Lesson在句子中不大写在句子中不大写 Lesson One第第32页页 th

17、e thirty-second page Page 32 / Page Thirty-two第第305房间房间 Room 305第第12路公共汽车路公共汽车 Bus No.12编号表示法编号表示法;年用基数词表示年用基数词表示,两位一读两位一读,介词用介词用in；日用序数词表示日用序数词表示,介词用介词用on。1999 nineteen ninety-nine1949年年10月月1日日 October (the) first, nineteen forty-nine 月月-日日, 年年 the first of October, nineteen forty-nine 日日-月月, 年年年份、

18、日期表达法年份、日期表达法读作读作;表示表示“在在世纪世纪, 用序数词。用序数词。 在在20世纪世纪写作：写作：in 20th century读作：读作：in the twentieth century;1) 用用 times表示。表示。 My room is three times as large as yours. 我的房间是他的三倍大小。我的房间是他的三倍大小。 假设表示假设表示“是是两倍数两倍数,普通用普通用 twice。 My room is twice as large as yours. 我的房间是他的两倍大小。我的房间是他的两倍大小。倍数表达法的句型：倍数表达法的句型： .倍

19、数倍数 + as + 描画词原级或副词原级描画词原级或副词原级 + as倍数的表达法倍数的表达法;2) 用用-fold表示。表示。The value of the stock has increased two- fold since we bought it. 股票的价值已涨至我们购买时候的两倍。股票的价值已涨至我们购买时候的两倍。 3) 用用-%表示。表示。The collection of our school library is 200% up compared with 1998. 我们学校图书馆藏书量与我们学校图书馆藏书量与1998年相比增年相比增 长了一倍。长了一倍。; fir

20、st of all 首先首先 by ones and twos 三三两两地三三两两地 second to none 不比任何人差，首屈一指的不比任何人差，首屈一指的 one by one 一个一个地一个一个地 be on cloud nine 高兴得飘飘然高兴得飘飘然 含数词的短含数词的短语他知道哪语他知道哪些呢？些呢？;举一反三举一反三1. There are 50 students in our class, _ of whom have been to the Great Wall. A. two-three B. two-third C. two-thirds D. second-th

21、ree2. _ of the land in that district _ covered with trees and grass. A. Two fifth, is B. Two fifth, are C. Two fifths, is D. Two fifths, are;3.Americans eat _ vegetables per person today as they did in 1990s. A. more than twice B. as twice as many C. twice as many as D. more than twice as many;1. _

22、people in the world are sending information by every day. A. Several million B. Many millions C. Several millions D. Many millionI. Multiple choice. ;2. Many students signed up for the _ race in the sports meeting to be held next week. A. 800-meter-long B. 800-meters-long C. 800 meter length D. 800

23、meters length;3. It is reported that the floods have left about _ people homeless. A. two thousand B. two-thousands C. two thousands D. two thousands of;II. Fill in the blanks with the suitable words.1. Efforts to reform the system began in the early _ (twenty) century and met with some success in the decades that followed. 2. The boss said we had only three days to finish t