初中語法數詞復習ppt課件

1、數詞,數詞的考點,一.基數詞、序數詞,二.數詞的表示法,基數詞的構成,1）112, 獨立成詞。 one two three four five six seven eight nine ten eleven twelve 2）13-19, 由39 + teen構成。 14fourteen 16-sixteen 17-seventeen 19nineteen 特殊拼寫: 13 thirteen 15-fifteen 18eighteen 3）2090, 以-ty結尾。 20twenty 30-thirty 40forty 50fifty 80-eighty 60-sixty 70-seventy

2、 90ninety 4）2199， 兩位數，十位與個位之間有 “”。 21 twentyone 55 fiftyfive 99 ninetynine 5）101999，三位數，百位與十位/個位之間加and。 101 one hundred and one 840 eight hundred and forty 693 six hundred and ninety-three,一.基數詞變序數詞,first,second,third,fourth,fifth,sixth,eighth,ninth,twelfth,twentieth,twenty-first,fortieth,one hundre

3、dth,one hundred and fifth,one hundred and twenty-ninth,nineteenth,口訣： 基變序，有規(guī)律，詞尾加上th。 一、二、三特殊記，結尾字母t d d. 八減t，九減e， ve 要用f替。ty把y變成ie， 再加th。 若是碰到幾十幾 前用基，后用序,二.基數詞的讀法,1、百位和十位間用 and 連接, 十位和個位間用 - 連接,three hundred and twenty-one,321,2、右往左數,三位一組,逗號隔開.依次是 thousand(千) million (百萬) billion (十億,29,431,500,7,6

4、,thousand,hundred,million,billion,and,6) 1，000以上數目,從右向左每三位用“，” 分開,分別讀為thousand , million, billion,基數詞的構成,four thousand three hundred and twenty-one,seven million,six hundred and fifty four thousand three hundred and twenty-one,7,654,321,1,987,654,321,4321,4,321,one billion nine hundred and eighty-se

5、ven million,six hundred and fifty-four thousand three hundred and twenty-one,1. hundred thousand (表示具體數字) million billion 2. hundreds thousands (表示概數) millions billions,三.基數詞的用法,數詞 (several),of,some / many hundreds of,1. If a = 3, b=4, whats the answer to the problem, a+2ab+1=? the answer is_. A. tw

6、enty eight B. twenty-eighth C. twenty-eight 2. In our school several _ students are able to search the Internet . A. hunderd of B. hunderds of C. hundred,3. Many _ sheep were killed in the accident. A. thousands of B. thousand C. thousands 4. There are over nine _ workers in the factory, but _ of yo

7、ung people hope to work in it. A. hundred; hundreds B. hundreds; hundreds C. hundreds; hundred,月日年 在2008年10月1日,四.數詞的表示法 年月日,on Octorber the first, two thousand and eight,on August the ninth,in May, two thousand and ten,有日用 on 無日用in,on Oct. 1st , 2008,月日 在8月9日 月年 在2010年5月,1. The accident happened on_

8、. A. April 5, 2001 B. 2001, April 5 C. April 2001, 5 2. I was born _. A. in March 8, 1993 B. on July 9, 1994 C. on May, 1995,20世紀90年代,in the 1990s,在他50多歲時,in his fifties,四.數詞的表示法 年代世紀,in the,in ones + 整十基數詞復數 在某人幾十歲時,nineteen,nineties,1. There will be more chances in _ century than in _ century. A.

9、twenty-one, twenty B. twenty-first, twentieth C. the twenty-first, the twentieth 2. The city changed a lot _. A. in 1980s B. in the 1980s C. in the 1980,3. He graduated in _ of _ century. A. the sixtieth; twenty B. sixty; the twentieth C. the sixties; the twentieth 4. He got the prize _. A. in his f

10、ifties B. in fifties C. in his fifty,one oclock,ten past two,half past three,twenty to five,a quarter past five,a quarter to seven,seven fifty,表示在幾點鐘用介詞 at,四.數詞的表示法 時間,1. Its already 7:40 now. When will the film start? _. We still have five minutes. A. A quarter to seven B. Seven past forty-five C.

11、A quarter to eight,1 5,分子 基數詞 分母 序數詞,one fifth,2 7,分子 1 分母 + s,two sevenths,1 4,分子 a 分母 quarter,a quarter,3 4,three quarters,1 2,a half,1 3,three and one third,3,基數詞 + and + 分數,四.數詞的表示法 分數百分數,80 ,基數詞 + percent,eighty percent,half / (百)分數 + of + 可數名詞復數 謂語動詞用復數 half / (百)分數 + of + 不可數名詞 謂語動詞用單數,3.78,t

12、hree point seven eight,1. _ of the students _ boys in Class A. Two three; are B. Two thirds; are C. Two thirds; is 2. _ of her money _ spent on clothes. A. Two three; are B. Two thirds; is C. Two third; is 3. _ the teachers in our school is about one hundred, and _ of them are women teachers. A. The

13、 number of; two third B. The number of ; two thirds C. A number of; two thirds,一個半小時 兩個半小時,two and a half hours = two hours and a half,one and a half hours = one hour and a half,四.數詞的表示法 半的表示法,1. The boy always stays there for _. A. one and half hour B. one and a half hour C. one and a half hours 2.

14、 The old man drank_ beer. A. two bottles and a half B. two and a half bottle C. two bottle and a half,一倍 once，兩倍 twice， 三倍 three times (三倍或以上 基數詞times,四.數詞的表示法 倍數,This box is five times as big as that one. =This box is four times bigger than that one,A + be + 倍數 + as +adj.原+ as +B. A是B的 倍 C + be + 倍

15、數 + adj.比+ than +D. C比D 倍,1. This building is _ that building. A. three time as tall as B. twice taller than C. three times as taller as 2. 我的箱子比你的重六倍! My box is _ yours,six times heavier than,seven times as heavy as,一般編碼用 名詞 + 基數詞 207房 三年級一班 第五部分 第一課 3 號汽車 第一中學,Room 207 Class one Grade three part five = the fifth part lesson one = the first lesson Bus No.3 = the No.3 bus No. 1 Middle School,四.數詞的表示法 編號,The winner is _. He is an _ boy . A. eight-year-old; eight years old B. eight years old; ei