介词和数词

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英语 数词 介词 连词

英语 数词 介词 连词

一、数词讲解1、基数词。

表示数目的多少,如:one, two, three, one hundred, two thousand 等。

2、序数词。

表示顺序第几,其前面须加上定冠词the。

如:the twenty-first, the thirtieth等练习:写出下列数字的基数词和序数词的表示方法。

3、分数。

分数表达法:基数词表示分子,序数词表示分母,如果分子大于1时,分母要加“s”。

如:one-fourth, two-fifths, three-tenths4、年、月、时间表达法:年份用基数词,日期用序数词,时间用基数词,其顺序由小到大。

Eg: He was born on January 11th, 1886. He was born in January, 1990.5、Hundred, thousand, million, dozen, score这些词前面如有表示具体数字的词,它们不能加“s”,反之则须加“s”。

如:three hundred people, thousands of people。

(1) 200 个学生____________________________ (2) 成百上千的人__________________________(3) There are about two _______ students in their school.A. thousand ofB. thousands ofC. thousandD. thousands(4) _______ Iraqi people died in the Iraq War.A. Thousand ofB. Thousands ofC. ThousandD. Thousands(5) _______ students in our school went there this summer.A. Two hundredB. Two hundredsC. Two hundreds ofD. Two hundred of基础练习:(1)He lives on _______ floor. A. four B. fourth C. the four D. the fourth(2) Today she is very happy,because it is her ________ birthdayA. seventeenB. seventeenthC. the seventeenthD. the seventeen (3) This is a big class, and ________ of the students are girls.A. two thirdB. second threeC. two thirdsD. two three(4) -- What is one fourth and a half, do you know? -- Yes, it’s _______.A. two sixthsB. three fourthsC. one threeD. three sixths(5) I like this kind of pen, could you please give me _______ more.A. twoB. secondC. the twoD. the second(6) He has failed many times, but he wants to try _________ time.A. sixthB. a sixthC. the sixthD. six(7) In the final exam, he got _______ prize.A. thirdB. the thirdC. threeD. the three二、介词的用法(一) 介词的功能介词是一种虚词,不能单独使用。

高中英语语法数词与介词知识归纳

高中英语语法数词与介词知识归纳

高中英语语法数词与介词知识归纳基数词表示数目多少或顺序先后的词叫数词。

1.基数词的构成:1-10 one, two, three, four, five, six, seven, eight, nine, ten;11-19 eleven, twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen;20-90 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety;≥ 100100 a/one hundred;1,000 a/one thousand;1,000,000 a/one million;1, 000,000,000 a/one billion = a/one thousand million2. 基数词的用法1)作主语:Three will be enough for us.三个对我们来说就足够了。

Two of the girls are from Tokyo.这些姑娘中有两位来自东京。

2)作宾语:Four people applied for this job, but we only need one.四个人申请这工作,但我们仅需一人。

3)作表语:The population of China is over 1.3 billion.中国有十三亿多人口。

I’m twenty while my brother is sixteen.我二十岁,我弟弟十六岁。

4)作定语:We have 300 workers in our company.我们公司有三百名员工。

Forty students were involved in the interview. 四十名学生参加了这次采访。

5)作同位语:You two clean these seats.你们两个打扫这些位子。

词性学习-数词、形容词、介词,代词

词性学习-数词、形容词、介词,代词

数词1. 定义:表示"多少"和"第几"的词,叫数词。

其用法相当于名词或者形容词。

数词分为基数词和序数词两种。

基数词: 表示数目的词是基数词,最基本的数词如下:1 one,2 two,3 three,4 four,5 five,6 six,7 seven,8 eight,9 nine, 10 ten, 11 eleven, 12 twelve, 13 thirteen, 14 fourteen, 15 fifteen, 16 sixteen, 17 seventeen,18 eighteen, 19 nineteen, 20 twenty, 30 thirty, 40 forty, 50 fifty, 60 sixty,70 seventy, 80 eighty, 90 ninety,100 a hundred,1,000 a thousand, 1,000,000 a million,1,000,000,000 a billion.基数词1-12 是独立单词,需逐个记忆。

基数词13 - 19是个位数词的词干后加-teen 构成。

其中thirteen, fifteen, eighteen, 变化不规则。

基数词20 ━90 是在十位数词后面加-ty 构成。

基数词21 ━ 99 是在十位数词后面加上个位数词合成,中间加上连字符" ━ " 。

例如:21 twenty ━ one 95 ninety ━ five基数词三位以上的数词, 在百位和十位之间,一般要用连词"and "。

例如:132 one hundred and thirty ━ two.1340 one thousand three hundred and forty表示"万"的词英语中没有.如1万可用10千来表示。

ten thousand. 30万可用three hundred thousand 来表示。

介词冠词和数词的用法总结

介词冠词和数词的用法总结

介词冠词和数词的用法总结《介词冠词和数词的用法总结》整体感受嘛,介词、冠词和数词在英语学习里真的是有点让人头疼,但又很重要的部分。

就像建房子的小零件,虽然小但缺了它们房子就不稳固。

先来说说介词。

回想起来才发现介词用法超级多。

比如说“in”、“on”和“at”,这三个太常见了。

“in”可以表示在一个空间里面,像“in the room”,在房间里;还可以表示在一段时间范围内,“in the morning”在早上。

“on”呢,经常用在具体的某一天,“on Monday”,星期一这一天。

“at”就更多用于具体的时间点,“at 7 o’clock”。

而且介词和动词搭配起来还有很多特殊的用法,像“look at”看,“listen to”听。

这些搭配可不能搞错,这就像钥匙和锁,一对一搭配好才能打开正确的理解大门。

冠词分定冠词“the”和不定冠词“a”、“an”。

“a”和“an”表示一个或者某一个,“an”用在元音开头的单词前,比如说“an apple”。

“the”的话就特指某个事物,比如说“the book”,就是特定的那一本书。

这让我想起之前做练习题的时候,就老在定冠词和不定冠词上犯迷糊。

有一次看到句子“Give me a book”和“Give me the book”,当时就没分清。

现在想想,第一个句子只是说给我一本书(随便一本),而第二个句子是给我那本(特定的那本)书。

原来是这么回事。

数词相对来说比较简单,但容易出错的点也有。

基数词就是表示数量,“one”“two”“three”之类的。

序数词表示顺序,像“first”“second”“third”。

这里有个特别要记住的点,序数词前面一般都是要加定冠词“the”的,比如说“the first day”第一天。

重要发现呢,就是这些词的用法有时候是要根据上下文来判断的。

不能只看单词本身就确定怎么用,一定要把整个句子或者段落的意思弄明白。

反思一下,之前对于它们的学习有点太死记硬背了,没有深入去理解每个用法背后的逻辑。

第二讲:数词与介词

第二讲:数词与介词

Lecture 2 . 数词+介词请将下列语句翻译成英文:1.该电路中的电流为电源短路电流的一半。

●The current in the circuit is one half of the short-circuitcurrent of the source.2.现在其内部的压力是原先的1/3。

●Now its internal pressure is one third what it was.3.月球的质量为地球的1/81。

●The mass of the moon is one eighty-first that of the earth.4.这个元件上的电压为零点几伏特。

●The voltage across this component is several tenths of avolt.5.这种蓄电池的电阻仅为零点零零几/千分之几欧姆。

●The resistance of this kind of storage battery is only a fewthousandths of an ohm.6.其误差为6/1012。

●Its error is six parts in 1012.7.这台计算机储存的信息比那台多3倍。

●This computer stores four times more Information thanthat one.8.不久的将来对这种设备的需求量将为现在的20倍。

●The demand for this equipment in the near future will betwenty times what it is.I. 分数与倍数1.一般表示法:●分子--基数词;分母—序数词●8/9: eight ninths , 1/81: one eighty-first2.“零点几”、“零点零几”、“千分之几”,”百万分之几”…●The voltage across this component is several tenths ofa volt.●The pill weighs a few hundredths of a gram.●This is only a few thousandths of the heat ofvaporization.●Seven parts per million●Seven parts in a million●Seven parts in 106.3.数词在句子中作前置修饰语●The output is 100 times {of} the input.●Its speed is three times that of the light.●The force excerted on the body is two fifths what it was. 4.表示数量增长/减少的常用句型1.n times + 比较级=n times as 原级as●This box is six times heavier than that one.●This value is nearly 4.5 times greater than the ideal one.●The wavelength of this musical note is over three timeslonger than that of the same note in the air.●The sample has been magnified by a factor of 11. (增了10倍,为原来的11 倍)●If the radius is halved, the flow rate is reduced by afactor of 5. (降低了4倍,降为原来的1/5)请根据中文原文改正英文译文的错误。

数词介词代词

数词介词代词

一倍 三倍
once,两倍 twice, three times (三倍或以上
基数词+times)
This box is five times as big as that one. =This box is four times bigger than that one. ① A + be + 倍数 + as +adj.原+ as +B. A是B的 …倍… ② C + be + 倍数 + adj.比+ than +D. C比D … …倍
从属连词:引导从句
1 引导时间状语从句:after, before, when, while, as, till, until, since, as soon as. 2 条件:if, unless 3 原因:because, as, since 4 目的:so that, in order that 5 让步:though, although, even if. 6 结果: so…that…; such…that… 7 比较:than, as…as… 8 名词从句:that, if , whether
表示其他意义的介词except, besides
3) except, besides 除了 except 除……之外,不包括在内; besides 除……之外,包括在内。
并列 连词: 1 并列关系:and, both…and…,not only…but also, neither…nor…; 2 选择关系:or; either…or… 3 转折关系:but, while,however 4 因果关系:because, so
表示地点位置的介词

数词的介词知识点总结

数词的介词知识点总结

数词的介词知识点总结一、数词的基本概念1. 数词是表示数目或次序的词。

数词分为基数词和序数词两种。

2. 基数词表示数目的多少,如一、二、三等。

3. 序数词表示次序或顺序,如第一、第二、第三等。

4. 数词的构成有规律可循,如基数词添加“-th”后就成为相应的序数词。

二、数词的用法及介词搭配1. 数词+名词时,通常用于表示数量、次序等。

例如:three books、the first day等。

2. 数词+of+名词时,表示“……的几个(或第几个)……”的意思。

例如:three of the students、the first of September等。

3. 数词+介词+数词时,表示“数量+单位”的意思。

例如:two by two(两个一组)、three in a row(一排三个)、four on each side(每边四个)等。

4. 数词+介词+名词时,表示数量或次序的特定概念。

例如:two in the morning(早上两点)、three at a time(一次三个)、four at most(最多四个)等。

5. 数词+介词+形容词时,表示数量或次序的概念加上形容词的描述。

例如:five by oneself (一个人五个)、six in total(总共六个)、seven at most(最多七个)等。

三、数词的特殊用法1. 数词+复合介词时,表示数量或次序加上复合介词的特定含义。

例如:twenty-two out of thirty(三十个中的二十二个)、fifty-five on each side(每边五十五个)等。

2. 数词+介词+数词+名词时,表示数量或次序加上特定单位的概念。

例如:three times a month(一个月三次)、four kilometers per hour(每小时四公里)等。

3. 数词+连词+数词时,表示数量或次序之间的比较或关系。

例如:three or four times(三到四次)、five and six together(五六两个一起)等。

第23讲 介词和数词

第23讲 介词和数词

高频考点四
介词的固定搭配
介词往往同其他词类形成了固定搭配关系。熟记并掌握这种固 定搭配关系,才能正确使用介词。 1.动词+介词 arrive in/at到达 ask for请求 do well in在„„方面做得好
give up放弃
prefer...to... 宁愿选择„„,更喜欢„„ regard...as... 把„„看做„„ thanks to幸亏,由于
英语
四川省
第23讲 介词和数词
介 词 中考对介词的考查主要是介词的基本用法和介词的辨析。
学习重点应放在以下三点:
1.表时间、地点、方式等介词的用法; 2.介词短语及介词与其他词的搭配使用;
3.同义或近义介词辨析。
高频考向一
表时间的介词
①at,in,on
表示时间点用at。如:at six o'clock,at noon,at midnight。表示在某个世 纪,某年,某月,某个季节以及早晨,上午,下午,晚上时,用in。如
③in,on与to 从下图可以看出in表示“在某一范围之内,在„„中”;on表 示两个不同的个体相邻或接壤,即“毗邻;接壤”;to则表示两
个个体之间有一段距离。如:
Japan lies to the east of China in the east of Asia.It faces the Pacific on the east.日本在亚洲东部(范围内),中国东面(不接壤),东临太 平洋(接壤)。
think about考虑 laugh at嘲笑
learn from向„„学习
leave for出发去某地 divide...into把„„分开 believe in信任,信赖 depend on依靠
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第23讲介词和数词
介词
1.It is important __A__ us to make full use of time.(2016,永州)
A.for B.of C.with
2.—The summer weather is coming.I'm looking forward __B__ it.
—Me too.(2016,郴州)
A.at B.to C.on
3.Taiwan lies __B__ the east of Fujian,________ the southeast of China.
(导学号:38122129)(2016,龙东)
A.on;in B.to;in C.on;to
4.—Sally is my best friend.She is always there whenever I'm __B__.(2016,福州)
—Yeah.A friend in need is a friend indeed.
A.in order B.in trouble C.in public
5.Stephen Hawking got more than 380,000 followers in two hours __C__ first message on Weibo.(2016,东营)
A.before B.since C.after D.until
6.I'd like to hold our next meeting __C__ June 23rd.Is that OK for you?(2016,威海)
A.in B.into C.on D.with
7.Nowadays,more and more people have taken an interest __C__ watching Running Man ________ Friday evening.(2016,安顺)
A.in;in B.at;on C.in;on D.for;in
8.—Who is Dave looking __B__?(2016,襄阳)
—His mother.She's been in hospital for a few days.
A.for B.after C.at D.up
9.Sleeping is a popular way to relax __B__ students.(2016,临沂)
A.on B.among C.about D.between
10.At the farewell party,Kobe Bryant said,“__D__ the support of my fans,it would be hard for me to achieve such great success.”(2016,东营) A.With B.Under C.Through D.Without
11.__C__ running after success,we have a lot of other interesting things to do in our lives.
(导学号:38122130)(2016,东营)
A.By B.On C.Besides D.Except
12.Many young people put mobile gaming __C__ anything else,thinking little of their normal lives.
(导学号:38122131)(2016,广东)
A.along with B.behind
C.before D.in front of
13.Tina had to sell the house even though it was __C__ her own wishes.
A.above B.on C.against D.for
14.He is often late __A__ class.Sometimes he is even absent ________ school.
A.for;from B.for;for
C.from;for D.to;from
数词
1.Mount Tai is so famous that __C__ people visit it every day.(2016,永州) A.hundred of B.seven hundreds of
C.hundreds of
2.—Hi,Andy!There are __A__ floors in this building.Which floor do you live on?
—I live on the ________ floor.(2016,衡阳)
A.thirty;twenty­second B.thirty;twenty­two
C.thirtieth;twenty­two
3.The workers will complete the new bridge in __A__.
(导学号:38122132)(2016,郴州)
A.two and a half months
B.two months and half
C.two and a half month
4.On her __B__ birthday,she got an iPad as a gift from her father.(2016,泸州)
A.twelve B.twelfth
C.the twelve D.the twelfth
5.Meimei is going to be an older sister.Her parents are planning to have their __D__ child.(2016,重庆)
A.one B.two C.first D.second
6.Please turn to page __D__ and take a look at the picture on it.(2016,广东)
A.the eightieth B.eightieth
C.eighties D.eighty
7.—What do you think of the environment here?
—Wonderful!__A__ of the land ________ covered with trees and grass.
(导学号:38122133)(2016,滨州)
A.Two fifths;is B.Two fifth;is
C.Two fifths;are D.Two fifth;are。

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