中考专项复习之数词学习ppt课件.ppt
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1、Numbers2018中考英语中考英语 专项复习专项复习 数词数词1一一. .基数词、序数词基数词、序数词二二. .数词的表示法数词的表示法2基数词基数词 31. 基数词表示数目的词称为基数词。基数词表示数目的词称为基数词。其形式如下:其形式如下:A110one,two,three,four,five,sixseven,eight,nine,tenB 1119eleven,twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen,nineteen4C 2199 表示几十几时,在十位和个位之间添加连字符“-”21 32435
2、465768798twenty-oneforty-threethirty-twofifty-foursixty-fiveseventy-sixeighty-sevenninety-eight5D百位数百位数三位数以上的基数词,在百位和十位一般三位数以上的基数词,在百位和十位一般要用要用 “and”连接。连接。 101 320 648 E千位数以上千位数以上从数字的右端向左端数起,从数字的右端向左端数起,每三位数加一个逗号每三位数加一个逗号“,”。从右开始,第一个。从右开始,第一个“,”为为thousand,第二第二个个“,”为为million,第三个,第三个“,”为为billion。如:如:1
3、,234,567,890one / a hundred and onethree hundred and twentysix hundred and forty-eightone billion two hundred and thirty-four million five hundred and sixty-seven thousand eight hundred and ninety6“ 1509 ”(1)If it is an amount(数量)1,509 reads like this one thousand five hundred and nine(2) If it is a
4、 date(日期)15 09 reads like this (3) If it is a telephone number(电话号码)1509 reads like this “0” 在英语里读成在英语里读成 “o” or “zero”71. hundred thousand (表示具体数字表示具体数字) million billion2. hundreds thousands (表示概数表示概数) millions billions三三. .基数词的用法基数词的用法数词数词twotwo( (several)+)+ ofsome / many hundreds of81)基数词表示确切的数时
5、,不用复数形式. 2)表示不确切数,如成百、成千上万,则用复数。There are hundreds of people in the hall320 three hundred and twenty93人的不确切岁数或年代,用几十的复数形式。He became a professor in his thirtiesIt was in the 1960s4基数词的句法功能可作主语、宾语、定语、表语、同位语。The two happily opened the box(作主语)They three tried to finish the task (作同位语)101. If a = 3, b=4
6、, whats the answer to the problem, a+2ab+1=? the answer is_. A. twenty eight B. twenty-eighth C. twenty-eight2. In our school several _ students are able to search the Internet . A. hunderd of B. hunderds of C. hundred113. Many _ sheep were killed in the accident. A. thousands of B. thousand C. thou
7、sands4. There are over nine _ workers in the factory, but _ of young people hope to work in it. A. hundred; hundreds B. hundreds; hundreds C. hundreds; hundred12 月日年月日年 在在2008年年10月月1日日四四. .数词的表示法数词的表示法 年月日年月日on Octorber the first, two thousand and eight日日the + 序数词序数词月月(首字母大写)(首字母大写)月日与年之间月日与年之间用用 ,分
8、开分开年年(两位两位读)(两位两位读)on August the ninthin May, two thousand and ten有日用有日用 onon 无日用无日用ininon Oct. 1st , 2008 月日月日 在在8月月9日日 月年月年 在在2010年年5月月131. The accident happened on_. A. April 5, 2001 B. 2001, April 5 C. April 2001, 52. I was born _. A. in March 8, 1993 B. on July 9, 1994 C. on May, 19951420世纪90年代
9、in the 1990s在他50多岁时in his fifties四四. .数词的表示法数词的表示法 年代世纪年代世纪in thein ones + 整十基数词复数在某人几十岁时nineteen nineties151. There will be more chances in _ century than in _ century. A. twenty-one, twenty B. twenty-first, twentieth C. the twenty-first, the twentieth2. The city changed a lot _. A. in 1980s B. in
10、the 1980s C. in the 1980163. He graduated in _ of _ century. A. the sixtieth; twenty B. sixty; the twentieth C. the sixties; the twentieth4. He got the prize _. A. in his fifties B. in fifties C. in his fifty17时间和钟点时间和钟点18时间的表达方式时间的表达方式 1直接表达法。即先读小时,再读分钟直接表达法。即先读小时,再读分钟 如:如:4:10 读成读成 8:36 读成读成2逆读法。即
11、先读分钟,再读小时逆读法。即先读分钟,再读小时分钟小于分钟小于30的用的用“past”,中文译为中文译为“过过”。即分钟即分钟+past+时钟,时钟,中文译为中文译为“几点过几分几点过几分”如:如:5:10(5点过点过10分)读成分)读成 2:02 (2点过点过2分)分) 读成读成four teneight thirty-sixten past fivetwo past two19分钟超过分钟超过30(不包括(不包括30分钟)用分钟)用 “to”(中文译为(中文译为“差差”)即即“60-分钟数分钟数 +to+钟点数钟点数+1” (中文译为:几点差几分中文译为:几点差几分)如:如:7:45 (八
12、点差(八点差15分)分) 读成读成 1:58(两点差(两点差2分)分) 读成读成3半小时用半小时用“half”, 一刻钟用一刻钟用“quarter”。注意:一刻钟注意:一刻钟 a quarter 三刻钟三刻钟 three quarters 如:如: 4: 30 读成读成 9: 45 读成读成 a quarter to tentwo to twohalf past fourfifteen to eight特别注意:一个半小时的表达方式:特别注意:一个半小时的表达方式:one / an hour and a half one and a half hours20Can you read them?
13、1:30 2:15:3:456:387:259:50one thirtyhalf past onetwo fifteena quarter / fifteen past twothree forty-fivea quarter/ fifteen to foursix thirty-eighttwenty- two to seventwenty five past sevenseven twenty-fiveten to tennine fifty三年半的两种表达方式三年半的两种表达方式:three years and a halfthree and a half years211. Its a
14、lready 7:40 now. When will the film start? _. We still have five minutes. A. A quarter to seven B. Seven past forty-five C. A quarter to eight221 15 5分子分子 基数词基数词分母分母 序数词序数词one fifthone fifth2 27 7分子分子 1 1分母分母 + s+ stwo seventhtwo sevenths s1 14 4分子分子 a a分母分母 quarterquartera quartera quarter3 34 4thr
15、ee quarterthree quarters s1 12 2a halfa half1 13 3threethree andand one third one third3 3基数词基数词 + and + + and + 分数分数四四. .数词的表示法数词的表示法 分数百分数分数百分数23分数、百分数、小数的表达方法分数、百分数、小数的表达方法 (以分数(以分数考法较为常见)考法较为常见)1. 分数分数: 分子用基数词,分母用序数词,分子分子用基数词,分母用序数词,分子大于一,分母加大于一,分母加s1/2 读作读作 2/3 读作读作1/13 读作读作 3/4 读作读作2小数小数,百分数的读
16、法百分数的读法:小数点读成小数点读成point 3.6 读作读作百分号百分号% 读成读成 percent 50%读作读作one second(a half)two thirds 或者或者 two- thirdsone thirteenththree fourths或者或者three - quartersthree point sixfifty percent2480 %80 %基数词基数词 + + percent percenteighty percenteighty percenthalf / (百百)分数分数 + of + 可数名词复数可数名词复数 谓语动词用复数谓语动词用复数half /
17、 (百百)分数分数 + of + 不可数名词不可数名词谓语动词用单数谓语动词用单数3.783.78three three pointpoint seven eight seven eight251. _ of the students _ boys in Class A. Two three; are B. Two thirds; are C. Two thirds; is2. _ of her money _ spent on clothes. A. Two three; are B. Two thirds; is C. Two third; is3. _ the teachers in o
18、ur school is about one hundred, and _ of them are women teachers. A. The number of; two third B. The number of ; two thirds C. A number of; two thirds26一个半小时一个半小时两个半小时两个半小时 two two andand a half hour a half hours s= two hour= two hours s andand a half a half one one andand a half hour a half hours s
19、= one hour = one hour andand a half a half四四. .数词的表示法数词的表示法 半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 hours2. The old man drank_ beer. A. two bottles and a half B. two and a half bottle C. two bottle and a half27一倍一倍 once,两倍,两倍 twice
20、,三倍三倍 three times (三倍或以上三倍或以上 基数词基数词times)四四. .数词的表示法数词的表示法 倍数倍数 This box is five times as big as that one.=This box is four times bigger than that one. A + be + 倍数倍数 + as +adj.原原+ as +B. A是是B的的 倍倍 C + be + 倍数倍数 + adj.比比+ than +D. C比比D 倍倍281. This building is _ that building. A. three time as tall a
21、s B. twice taller than C. three times as taller as2. 我的箱子比你的重六倍我的箱子比你的重六倍! My box is _ yours. six times heavier thanseven times as heavy as29 The winner is _. He is an _ boy . A. eight-year-old; eight years old B. eight years old; eight-year-old C. eight-years old; eight-year-old He came to China _.
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