初中英语 数词 复习课件
中考英语《数词》复习ppt课件

小数表示法Leabharlann (1) 小数的读法 小数点左边的数通常按基数词读,若为三位以上的数,也 可按编码式读法读出,即将数字单个读出;小数点右边的 数通常按编码式读法单个读出。如: 6.86 six point eight six 14.15 fourteen point one five
数字的读法:
百位和十位之间要加and,如:105
基数词
基数词的用法 1)表示具体、准确的数目
4 books 104 books
注意:hundred, thousand, million等数词后不能加-s, 如:five hundred, six thousand, seven million等。
序数词
3)时刻表达方法
“时刻”用基数词表达,同时要注意以下两点。
A.表示“整点”时,在基数词后加o’clock; 9:00 o’clock. B.分钟小于或等于30分钟的,用“分钟数+past+钟点数”形式; 分钟数大于30分钟的,用“到下一个钟点所差的分钟数+to+下一个 钟点数”形式,也可以依次读钟点数和分钟数。 7:20 twenty past seven或seven twenty, 7:40 C.注意两个特殊的表示时间的单位词: 30分钟用half,15分钟用a quarter,如: 6:30 读作:half past six 5:45 读作:a quarter to six 6:15 读作:a quarter past six
(2) 小数中“0”的读法 “0”在小数中通常读作nought(英)或zero(美),也可 读作字母o。如: 0.08 (nought)point nought eight 或 (zero)point zero eight
数词(12张PPT)初中英语专项复习课件

3.在年份后面加s或's可用来表示年代。如: in the 1980's/1980s读作in the nineteen eighties,意为“在20世 纪80年代”。
表示在某个年代的早、中、晚期时,在定冠词后加上early, mid-,late。如:in the early 1920's/1920s在20世纪20年代早期
数词
初中英语专项复习
考点一 基数词 (一)基数词的构成 1.1~12独立成词。one,two,three,four,five,six, seven,eight,nine,ten,eleven,twelve。 2.13~19的基数词以-teen结尾。要注意thirteen,fifteen, eighteen的拼写。 3.20~90之间表示整“十”的基数词都以-ty结尾。要注意 twenty,thirty,forty,fifty,eighty的正确写法。
(六)计量表达法 表示“长、宽、高、面积”等用“基数词+计量单位+形容 词(long/wide/deep/high…)”或“基数词+计量单位+in+名词 (length/width/depth/height…)”。如: He is 1.85 meters tall.=He is 1.85 meters in height. (七)年龄表达法 1.“at the age of+基数词”“at age+基数词”“at+基数 词”都可表示年龄。如:at the age of ten=at age ten=at ten在十 岁时 2.“in one's+整十的复数”可表示“在某人……多岁时”。如: in his forties在他40多岁时
数词(21张PPT)初中英语专项复习课件

例题2
No way! I don't think A. fifteen years old B. fifteen-year-olds C. fifteen-years-old D. fifteen-year-old
should be allowed to drive. I am worried about my safety.
2 3
03 利 用 知 识 点 导 图 解 题
04 复 习 练 习
05 初 中 英 语 高 效 学 习
数词知识点导图仪表盘:
数词知识点导图基数词构成细节图:
数词知识点导图序数词构成细节图:
数词知识点导图数词用法细节图:
数词知识点导图小数细节图:
数词知识点导图分数细节图:
数词知识点导图其它细节图:
数词
初中英语专项复习
数词的知识点特点
一、【知识点少】 数词只包括基数词和序数词,知识点少 二、【考得比较细】 主要考小数、分数、时间、加减乘除等 的表示法和数词作主语时的主谓一致。
数词的定义和分类
表示数量和顺序,具有名词性和形容词性 包括:基数词(表数量)和序数词(表顺序)
01 1
02 构 建 知 识 点 导 图
数词知识点导图总导图:
例题1
of the surface of the earth 地球四分s之ea三. 的表面是海洋。
答案1
从题意我们知道,第一个空格填四分之三,根据知识点可以知道,四分之三是three fourths, 因为主语是surface,属于不可数名词,所以后面的系动词是单数is。
做题时有遇到新题型 (新考点),最好添 加在知知识,有助于 进一步知识点消化。
Thank you
【中考英语】专题复习课件:数词(16张ppt)

六、时间表示法
2、日期 1)年代用基数词,在某年要用介词in。如: He was born in 1983. (1983读成nineteen eighty-three) 2)月份首字母要大写,在某月也用介词in,如果有年代出现, 在月份名后加年代,中间用逗号。如: It happened in January, 1999. (这事发生在1999年1月。) 3)日期用序数词(序数词前加the),在某日用介词on。如: on the first ;on the eighteenth 美国说法:顺序为先月后日。如: May 4(th)(五月四日 —— 读成 May the fourth) 4) 年月日同时出现时,年代位于最后,其前加逗号。如: Mary was born on January lst, 1990. 5) 表示“在几十年代”用 in + the + 逢十的数词复数。如: in the 1990s / 90’s / nineties
数词
•
基数词
• 序数词
一、基数词
1)53 — fifty-three 21~99 的两位数,在十位数和个位数之间加连字符构成 2) 325 — three hundred and twenty-five 101~999 的三位数由 hundred 加 and 再加两位数 或末位数
3)五千个学生 five thousand students 基数词 hundred, thousand , million, billion表示确 切数目时 不能加s; 但是:在表示不确切数目时,要用复数形式,如: hundreds of / thousands of students
Thank you!
one and a half years
初中英语语法复习-数词(共14张PPT)

二、基数词
3. 基数词的使用
1)数词 + hundred\thousand\ million\billion:表示具体数字 2) hundreds\thousands\ millions\billions + of 表示概数 3)in one’s thirties : 三十多岁;in the thirties 三十年代 4)基数词表编码:Room 207; Page Five = the fifth page 5)基数词+名词可构成合成形容词,作定语 a seven-day holiday = a seven day’s holiday
二、基数词
6)表示时刻:顺读法-先时后分; 逆读法-先分后时;
三、序数词
1. 序数词的句法功能
作主语 作宾语 作表语 作定语
作状语
The first bottle has ben full but the second is empty. I got a third in math. Columbus was the first who discovered America. Take the first turn to the right and the second turn to the left and then you’ll get there. It was a snowy day when we first met.
三、数词的运用
1 . 分数:分子用基数词,分母用序数词,分子大于“1”,分母用复数 one third三分之一 two thirds 三分之二 2. 小鼠:小数点后不论多少位,不能用都好分开,小数点后的数每一位都要单读。 15.503 读作:fifteen point five zero three 3. 百分数:百分数中的数目用阿拉伯数字,后接percent或者% 40% = 40 percent 4. 倍数: 一倍:once 两倍:twice/double 三倍及以上:基数词+times 5. 四则运算:加法:口语中,小数目的加法常用and代表“+”,is/are代表“=” 7+4=11 seven and four is/are eleven. 正式场合或较大数目用plus代表“+ ”,equals/is 代表“=” 减法:minus 乘法:multiplied by 除法:divided by 6. 年代与几十几岁:in the 90s在90年带 in one’s thirties 在某人三十几岁二、基数词2. 基数词的句法功能
中考英语语法——数词课件(56张PPT)

ninth,twelfth。 3. 20-90把y变成ie然后加th,如twentieth。 4. 21-99的序数词变后面的各位数。 5. 序数词可以用缩写,如1st, 2nd, 3rd ,4th…
3.百分数的表达:用“基数词+percent”表示, 注意percent 不用复数形式,如:
3% three percent 50% fifty percent 百分数作主语用法同分数一样。
分数
1/3
one third
1/4
one fourth
2/5
two fifths
3/4
three fourths
百分数的用法同分数的用法
百分数+of+
(C) 单 +V单 (C) 复+V复 (U) +V单
小数
0.5 zero point five 0.32 zero point three two / thirty-two 1.6 one point six 1.72 one point seven two/seventy-two 当数值大于1时,小数点后的名词用复数。 如:1.03 meters 1.5 tons
buy_____C_____ one.
A. the third B.three C.a third D. a
中考链接
1) The __D_____question is much more difficult
than this one .
A. forth
B. forty
C. fourteen
中考英语---数词总复习PPT课件

• (5) 1,000以上的数字,从右往左数,三位一组,每三位数加一逗号 “,”;第一个“,”号前为thousand(千), 第二个“,”号前为million(百 万),第三个“,”号前为billion(十亿) 。如:
万以上的数字读法特点
❖6, 500, 431, 729
billionmillion thousand hundred
• 1. 编号表示法:(1)编号在前,名词在后,用序数词,前面有 the;(2)编号在后,名词在前,用基数词,注意首字母大写;(3) 房间号码和电话号码要一个一个分别读。如:第一课 The First Lesson(句中不大写),Lesson One; Room 305
• 2. “几十”的复数形式可以表示:(1)几十多岁 ---- in + one’s + 数 词复数(in his forties2)年 代--- in + the +数词复数in the nineties
• 这几个词前无确切数词时,则遵循“两个有”原则, 即有 “s”和“of”。
• 如: many thousands of trees, millions of birds
1. (2004年河北省中考试题) Nine ______D_ pounds a week? That’s v
初中英语语法中考复习-数词精讲(共22张PPT)

练习
用所给词的适当形式填空
7.—How often do you go to the mountain? —_T__w__ic_e__ (two) a month.
8.Wednesday is the _f_o_u_r__th__ (four) day of a week. 9.Father's Day is on the __t_h_i_r_d__(three) Sunday of June. 10.They live on the _t_w_e__n_t_y_-_s__ix_t_h_ (twentysix) floor of the
A. 6, 12
B. 6s, 12s
C. 6th, 12th
D. 6's, 12's
基数词的用法
表示时刻
past表示”几点过几分”,to表示“差几分到几点” eg. 一点五十八(1:58): one fifty-eight/two to two,三点零二(3:02): three o two/two past three,九点半(9:30): nine thirty/ half past nine
基数词的用法
表示数量
eg. thirty trees
表示年龄,年份和年代
eg. at the age of 15,in 2013, in his fifties, in the 1960s
表示顺序
eg. Class Five, Room One
例题
—Children's cell phones, for those between the ages of ______ and ______, come in colorful styles.
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第14讲:数词之考点精讲表示数目多少或顺序多少的词叫数词,数词分为基数词和序数词。
表示数目多少的数词叫基数词;表示顺序的数词叫序数词。
一、基数词的用法(1) 基数词在句中主要用作主语、宾语、定语、表语、同位语,例如:Thirty of them are Party members.(主语)--- How many would you like?--- Three ,please.(作宾语)The nine boys are from Tianjing.(定语)Six plus four is ten.(表语)We four will go with you.(同位语)(2) 表示一个具体数字时,hundred, thousand, million一律不用复数;在表示一个不确定数字时则用复数。
例如:Our country has a population of 1,300 million people.There are three thousand students in our school.After the war, thousands of people became homeless.Maize is the most important food crop for millions of people in the world.They arrived in twos and threes.(3) 表示“……十”的数词的复数形式可用来表示人的岁数或年代,例如:He is in his early thirties.He died still in his forties.This took place in 1930s.(4) 表示时刻用基数词。
例如:We get up at six.The workers begin work at eight.表示“几点过几分”,用介词past,但须在半小时以内。
例如:ten past ten,a quarter past nine,half past twelve表示“几点差几分”用介词to, 但分数须在半小时以上。
例如:twenty to nine,five to eight,a quarter to ten表示“几点几分”还可直接用基数词。
例如:seven fifteen,eleven thirty,nine twenty二、序数词的用法(1)序数词主要用作定语,前面要加定冠词,例如:The first truck is carrying a foot baskets.John lives on the fifteenth floor.(2)序数词有时前面可加不定冠词来表示“再一”,“又一”这样的意思,例如:We'll have to do it a second time.Shall I ask him a third time?When I sat down,a fourth man rose to speak.(3)由几个序数词和基数词在拼写时不对应,很容易写错,应特别注意。
它们是:one---first, two---second, three---third, five---fifth, eight---eighth, nine---ninth,twelve---twelfth。
(4)表示年,月,日时,年用基数词表示,日用序数词表示。
例如:1949年十月一日读作: October (the) first, nineteen sixty2004年九月十日读作:September (the) tenth, two thousand and four(5)表示分数时,分子用基数词表示,分母用序数词表示。
分子大于1时,分母加-s。
例如:three fourths,one second,two fifths(6)序数词有时用缩写形式:first→1st second→2ndthird→3rd fourth→4thtwenty-second→22nd三、数词的用法1)倍数表示法a. 主语+谓语+倍数(或分数)+ as + adj. + asI have three times as many as you. 我有你三倍那么多。
b. 主语+谓语+倍数(分数)+ the size (amount,length…) of…The earth is 49 times the size of the moon. 地球是月球的49倍。
c. 主语+谓语+倍数(分数)+ 形容词(副词)比较级+ than…The grain output is 8 percent higher this year than that of last year.今年比去年粮食产量增加8%。
d. 还可以用by+倍数,表示增加多少倍The production of grain has been increased by four times this year.今年粮食产量增加了4倍。
2)分数表示法构成:基数词代表分子,序数词代表分母。
分子大于1时,分子的序数词用单数,分母序数词用复数:1/3 one-third ;3/37 three and three-sevenths.【实例解析】1.About ________ students in our class can describe that place in English.A. three-fifthsB. three-fifthC. third-fiveD. third-fifths答案:A。
该题考查的是分数的表示法。
分子用基数词表示,分母用序数词表示。
分子大于1时,分母应加-s,因此应选A。
2.Nine _______ pounds a week? That’s very good.A. hundred ofB. hundreds ofC. hundredsD. hundred答案:D。
该题考查的是数词的用法。
Nine hundred是一个具体的数量,这是数词不能用复数形式,后面也不能加of。
所以应选D。
3. We often have sports after class, and I like to play _______ basketball.A. aB. anC. theD. 不填答案:D。
该题考查的是冠词的用法。
球类运动之前不加冠词,因此应选D。
4. This is _______ song I’ve told you about. Isn’t it _______ beautiful one?A. the; theB. a; aC. the; aD. a; the答案:C。
该题考查的是冠词的用法。
第一个空是特指,特指我给你说过的那首歌,第二个空是表示某一个类别。
所以应选C。
第14讲:数词之考点精练一. .单项填空1. This morning I had ________ egg and a bottle of milk for my breakfast.A. anB. aC. theD./2. ---What’s the matter with you?---I caught ________ bad cold and had to stay in ________.A. a;/B. a; theC. a; aD. the; the3. ---Have you seen _______ pen? I left it here this morning.---Is it ________ black one? I think I saw it somewhere.A. a; theB. the; theC. the; aD. a; a4. _______ sun is shining brightly.A. AB. AnC. TheD. /5. There is _______ “h”in the word hour.A. aB. theC. anD./6. Did you enjoy your stay in Xian?Yes. I had _______ wonderful time.A. aB. anC. theD. /7. ______ sun is bigger than _______ earth.A. A; theB. A; anC. The; anD. The; the8. There is _______ apple and some pears on the table.A. theB./C. aD. an9. David has _______ cat. It’s very nice.A. aB. anC. theD./10. I’m reading _______ novel. It is _______ interesting story.A. a; anB. a; aC. the; theD. /; an11. It is said that SARS has killed more than ________ people worldwide.A. three hundredsB. three hundreds’C. three hundred’sD. three hundred12. ---How many workers are there in your factory?---There are two __________.A. hundredsB. hundredC. hundred ofD. hundreds of13. ---Which is the smallest number of the four?---_______________.A. Two-thirdsB. A halfC. A quarterD. Three-fourths14. ---What do you think of a war, Li Ming?---I’ve no idea. But it’s a fact that _______ people had to leave their hometown during the War on Iraq.A. three thousandsB. thousand ofC. thousands ofD. several thousands15. We all think that the _______ century will bring us more hopes.A. twenty-firstB. twentieth-firstC. twenty-oneD. twentieth-one16. ---Can you write the number eighty-five thousand, six hundred and twenty-six?---Yes, it is __________.A. 856620B. 85626C. 58662D. 5862617. When was the PRC founded? It was founded on _________.A. July 1, 1921B. October 1, 1949C. August 1, 1927D. May 1, 192218. I was 8 years old when my father was 31. This year my father is twice my age. How old am I?A. 21B. 22C. 23D. 2419. _______ Chinese are looking for ways to learn English well before Beijing 2008 Olympics.A. ThousandB. ThousandsC. Thousand ofD. Thousands of20. Both of the two rulers are broken. I want to buy a _______one.A. threeB. thirdC. forthD. /二. 句子改错:下面各句A, B, C, D中有一处错误,请指出并改正。