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-circuit
current 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 a
volt.
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 few
thousandths 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 than
that 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 be
twenty 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-first
2．“零点几”、“零点零几”、“千分之几”，”百万分之几”…
●The voltage across this component is several tenths of
a volt.
●The pill weighs a few hundredths of a gram.
●This is only a few thousandths of the heat of
vaporization.
●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 times
longer 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 a
factor 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。
1.【中文原文】这个电容器上的电压为零点零几伏。
【英文译文】The voltage on this capacitor is several
hundredths of a volt.
2.【中文原文】这个物体比那个重4倍。
【英文译文】This object is five times heavier than that one is.
II. Seven fairy ladies: 七个常用介词
1．Of
i.Of+ 抽象名词：语气更强烈的形容词
a)The book will be of help > helpful in exposing computer
scientisit to the latest technology.
b)This measurement is of great precision > precisely .
c)It is of no use > useless grounding this point.
ii.Of+ 可数名词复数：在…之中among
d)Of all these instruments, this one is the most expensive.
e)Of all the three parameters, two can be disposed quickly.
iii. A of B: 表示A、B为同位、主谓或动宾关系
f)The concept of potential difference will be introduced in
section II.
g)The lighter machine part has a mass of 7 kg.
h)The failure point corresponds to a safety factor of 1.
i)Ellipse are used to describe the motion of the planets
around the sun.
j)The variation of the output with the input is shown in Fig.2.
k)The seperation of gold from its ore is not easy.
l)The resolution of a force into x- and y-components is possible.
m)Exposure of the body to a toxic substance should be avoided.
2．With
i.With+ 具体名词：表示”用…”或“与…”或”具有…”
a)Power can be measured with =by using a wattmeter.
b)This line is parallel with the x-axis.
c)This is a function with two variables.
ii.With+ 抽象名词：语气更强烈的副词
d)AC can be changed into DC with great ease = very easily.
e)This parameter can be measured with
accuracy=accurately .
iii.vary, change, increase, decrease等动词+ with…：随着…
f)The conductivity of a semiconductor varies with
temperature.
g)The ship’s speed decreases with the increase of the water
resistance.
iv.with 位于句首，可表示“对于，有了，在…情况下”
h)With rockets, things are different.
i)With radars, we can see distant objects.
3．By
i.By+ 除了时间、距离之外的任何参量的数值
a)Now the pressure has increased by a factor of
10.
b)In this case, the two vectors differ in phase by
30o.
ii.在推导中表示“根据、依据”
a)One can find out the force by Hooke’s law.
b)By Eq. (3), we can obtain the following
expression.
iii.by+动名词：通过…
a)By analyzing the parameters of the device, we
can understand its features.
b)By an examination of the model, the structure
of an atom can be observed.
iv.by+…method: 用…方法
a)The equation should be resolved by this
method.
b)This is the only method by which the
disadvantage can be overcome.
v.数值by 数值：长宽高相乘
a)That laboratory is a room 4 by 12 meters.
b)The box measures 12 by 8 inches.
4．For
i.表示时间或距离的长短：
a)They have been working on this project for
seven months.
b)The temperature may stay constant for a long
time.
c)The car has run for 100 miles.
ii.表示“对于、如果、当”等条件：
a)For x> 1, the equation does not hold.
b)For m=∞, this factor equals unity.
iii.Solve+ for :方程求解
a)In this case, Eq. (2-1) will be solved for the
unknown.
b)It is necessary to solve the equation for x.
iv.在method, technique, algorithm, condition, requirement, name后常加for
a)The methods for/of solving this problem are
many.
b)An algorithm for/ of describing the solution of
some engineering problems in the graph
theory is presented.
c)The proper name for atomic energy is nuclear
energy.
v.“为了、供、用于”
a)These solutions are for reference only.
b)This is a manual for electrical engineers.
c)They are making preparations for a test.
vi.“由于”
a)For these reasons, Faraday was unable to
calculate the velocity of the propagation of
electromagnetic waves.
vii.引出不定式结构中的逻辑主语
a)It takes about 8 minutes for sunlight to reach
the earth.
b)This cargo is too heavy for the crane to lift.
5．On/upon
i.on/upon+ 动名词：一…就…, 在…之后
a) A substance will be reduced in mass on being
compressed.
b)On simplifying, the result becomes as follows.
c)Upon rearranging the above equations, we
obtain the followed set of equations.
ii.“关于、对于”
a)The influence of temperature upon pressure
should be taken into account.
b)These are the information on the mechanical
properties of the material.
iii.“在…时”
a)On the second half cycle, Q1 is off while Q2 is
on.
b)The international conference will take place on
Sunday.
6．In
i.in+单位名词复数(hertz除外)
a)Force is measured in newton s.
b)Frequency is measured in hertz.
c)Inductance is measured in henrie s.
ii.in+方向名词：朝着
a)Sound waves travel in all directions.
b)Direct current flows only in one direction.
iii.“方面”：
a)States 1 and 2 differ in pressure, volume, and
temperature by a definite amount.
b) E is the difference in energy between the two
states.
c)This computer is perfect in quality.
d)There devices differ greatly in size.
iv.in+ 动名词：在…过程中，在…方面
a)In the discussion of different equations, we
shall restrict our attention to this type.
b)Because of the difficulty in producing uniform
films, it is not possible to control resistance
values accurately.
v.在表示变化的名词后加in:
a)This causes a drop in temperature.
b) A slight change in pressure is measured.
vi.数字+in+数字：“几比几”
a)This line has a slope of 1 in 9.
b)There is a 1-in-17 chance of drawing two
successive hearts in this manner.
7．Over
i.“超过、越过”：
a)This balloon can fly over 100 miles.
b)Its transmission over a long distance causes
some loss of energy.
c)This line is over six times as long as that one is.
d)The wavelength of this musical note is 7.8 ft,
over three times longer than the wavelength
(2.5 ft) of the same note in the air.
ii.“与…相比”：
a)This new method has many advantages over
the original one.
b)The temperature has a remarkable decrease
over 150o previously cited.
iii.“在…范围内”:
a)It is easy to determine the car’s average
velocity over this distance.
b)This voltage is fairly stable over a wide
frequency range.
iv.“在…之上”
a) A bridge crane passed over our heads.
Exercises: 根据中文原文纠正英文译文的错误
1．【中文原文】本文提出一种新的识别雷达目标的方法【英文译文】This paper presents a new kind of
recognition method of for radar target.
A new method of radar target recognition
2．【中文原文】目标的运动状态对EKF跟踪精度的影响非常显著
【英文译文】The influence of the moving state of the
target is quite strong for the tracking accuracy of the EKF.
The influence of the moving state of the target on the
tracking accuracy of the EKF is quite strong.
3．【中文原文】与现有方法相比，该新方法有许多优点
【英文译文】This new method has many advantages compared with over the available one.
4．【中文原文】新设计的这台仪器质量很好。
【英文译文】This newly designed instrument is good in quality/ of good quality.
5．【中文原文】10月8号早上又发射了一颗通讯卫星。
【英文原文】Another comsat was launched in→ on the morning of October, 8th.
6．【中文原文】电压是用伏特来度量的。
【英文译文】Voltage is measured with → in volts. 7．【中文原文】他们将赶赴北京参加移动通讯国际会议。
【英文译文】They are leaving to→for Beijing to attend the international conference of→on mobile communication.
Homework (Due on Nov 4th,2015)
1. 必须解该方程求出电流。
2. 温度一下降，这个参数值就变小。
3. 第一章论述牛顿第一运动定律。
4. 声波朝四面八方传播。
5. 我们以牛顿为单位来测量力。
数词、介词
十二、数词、介词 （一）数词 1、基数词的读写方法 1)三位数的读写法：个位与十位之间用连字符“-”；百位与十位之间加an d；十位为零时也要加and。如： 365读作three hundred and six-five 605读作six hundred and five 2)大于三位数的读写法：从个位起每三位打一个撇号“’”，第一个撇号读thousand，第二个撇号读million，各撇号之间的数按三位及三位以下的数的读法读。如： 23, 589读作twenty-three thousand five hundred and eighty-nine 6, 632, 900读作six million six hundred and thirty-two thousand nine hundred 28, 000, 000读作twenty-eight million 2、表示日期 1949年1949读作nineteen forty-nine 6月23日June 23rd 读作June (the) twenty-third或the twenty-thir d of June 2006年10月October 2006 读作October, two thousand and six 1600年5月2日May 2nd, 2005 读作the second of May, sixteen hundred 3、表示钟点 半小时用half，一刻钟用a quarter，半小时以内用past，超过半小时用to。 08:00 eight o’clock或eight 09:15 nine fifteen或a quarter past/after nine 02:30 two thirty或half past/after two 05:45 five forty-five或a quarter to six 14:15 fourteen fifteen=2.15 p. m. 23:05 twenty-three oh five 24:00 twenty-four hundred hours=midnight 4、表示编号 1）. 单纯的编号，可在基数词前加number，简写为No.。如No.2第二。
英语介词用法大全
英语介词用法大全 TTA standardization office【TTA 5AB- TTAK 08- TTA 2C】
介词（The Preposition）又叫做前置词，通常置于名词之前。它是一种虚词，不需要重读，在句中不单独作任何句子成分，只表示其后的名词或相当于名词的词语与其他句子成分的关系。中国学生在使用英语进行书面或口头表达时，往往会出现遗漏介词或误用介词的错误，因此各类考试语法的结构部分均有这方面的测试内容。 1. 介词的种类 英语中最常用的介词，按照不同的分类标准可分为以下几类： (1). 简单介词、复合介词和短语介词 ①.简单介词是指单一介词。如： at , in ,of ,by , about , for, from , except , since, near, with 等。②. 复合介词是指由两个简单介词组成的介词。如： Inside, outside , onto, into , throughout, without , as to as for , unpon, except for 等。 ③. 短语介词是指由短语构成的介词。如： In front of , by means o f, on behalf of, in spite of , by way of , in favor of , in regard to 等。 (2). 按词义分类 {1} 表地点（包括动向）的介词。如： About ,above, across, after, along , among, around , at, before, behind, below, beneath, beside, between , beyond ,by, down, from, in, into , near, off, on, over, through, throught, to, towards,, under, up, unpon, with, within , without 等。 {2} 表时间的介词。如： About, after, around , as , at, before , behind , between , by, during, for, from, in, into, of, on, over, past, since, through, throughout, till(until) , to, towards , within 等。 {3} 表除去的介词。如： beside , but, except等。 {4} 表比较的介词。如： As, like, above, over等。 {5} 表反对的介词。如： againt ,with 等。 {6} 表原因、目的的介词。如： for, with, from 等。 {7} 表结果的介词。如： to, with , without 等。 {8} 表手段、方式的介词。如： by, in ,with 等。 {9} 表所属的介词。如： of , with 等。 {10} 表条件的介词。如：
介词和数词
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.
201x届中考英语复习 第二篇 中考语法专项 第23课 介词与数词课后练习
课后练习23 介词与数词 温馨提示：为满足部分老师批改时的评估需要，本课时的题量已按满分100分来设置，请需要的老师自行规划。 介词 一、用适当的介词（词组）填空 1.__________ his surprise, she spoke to him with great joy. 2. Both my parents were born__________ 1970. 3. I like flowers, I hope to study at a school__________ many flowers and trees in it. 4. We couldn’t finish our work so early__________your help. 5. She had to sell the house even though it was__________her own wish. 6. —Your sweater looks nice, is it made__________ wool? —Yes, and it’s made__________ Shanghai. 7. —Who else do you know at the party__________ Jim and Tom? —Lucy and Lily. 8. Look at the wall. There are some pictures__________ it. 9. I think drinking milk is good__________ our health. 10. —Why are you standing there, Maggie? —I can’t see the words clearly. T wo tall boys are sitting__________ me. 11. —Let’s get the key__________ the question. —OK. Let’s start. 12. If you sit on a chair__________ a long time, your back may begin to hurt.
数词介词的用法图文稿
数词介词的用法 集团文件发布号：（9816-UATWW-MWUB-WUNN-INNUL-DQQTY-
代词用法详解 （人称代词） 人称代词主格：作主语，表示谁怎么样了、干什么了。 I am a teacher. You are student. 人称代词宾格作宾语，表示动作行为的对象，一般放在动词后面。 Give it to me. 巩固训练 用所给代词的正确形式填空。 1. These are ______ ( he ) brothers. 2. That is _______( she ) sister. 3. Lily is _______ ( Lucy ) sister. 4. Tom, this is _____ ( me ) cousin, Mary. 5. Now _____________(her parent) are in America. 6. Those __________ ( child ) are _____ ( I ) father’s students.
7. Do you know ______ ( it ) name?8. Mike and Tom __________ ( be ) friends. 9. Thanks for helping ________( I ). 10. ______(Ann安)mother is ______(we) teacher. 物主代词： 形容词性物主代词(my/your/his/her/its/our/their)+名词 而名词性物主代词(mine/yours/his/hers/its/ours/theirs则相单于形容词性物主代词+名词,故其后不必加名词。如： Is this your book No, it isn’t，it’s hers(her book) ，Jim’s ，Tom’s，Maria’s 1.补全对话 ----Whose bike is it Is it______(your/yours) ----No, it’s not______.(my/mine) _______is red. But this bike is blue . ----Is it Jane’s ----Sorry, I don’t know. Maybe it’s_______(her/hers). ----Jane,is this______bike (youryours)
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-circuit current 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 a volt. 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 few thousandths 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 than that 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 be twenty 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-first 2．“零点几”、“零点零几”、“千分之几”，”百万分之几”… ●The voltage across this component is several tenths of a volt. ●The pill weighs a few hundredths of a gram. ●This is only a few thousandths of the heat of vaporization.
数词介词的用法
数词介词的用法 Pleasure Group Office【T985AB-B866SYT-B182C-BS682T-STT18】
代词用法详解 （人称代词） 人称代词主格：作主语，表示谁怎么样了、干什么了。 I am a teacher. You are student. 人称代词宾格作宾语，表示动作行为的对象，一般放在动词后面。 Give it to me. 巩固训练 用所给代词的正确形式填空。 1. These are ______ ( he ) . That is _______( she ) sister. 3. Lily is _______ ( Lucy ) . Tom, this is _____ ( me ) cousin, Mary. 5. Now _____________(her parent) are in America. 6. Those __________ ( child ) are _____ ( I ) father’s students. 7. Do you know ______ ( it ) name8. Mike and Tom __________ ( be ) friends. 9. Thanks for helping ________( I ). 10. ______(Ann安)mother is ______(we) teacher. 物主代词：
形容词性物主代词(my/your/his/her/its/our/their)+名词 而名词性物主代词(mine/yours/his/hers/its/ours/theirs则相单于形容词性物主代词+名词,故其后不必加名词。如： Is this your book No, it isn’t，it’s hers(her book) ，Jim’s ，Tom’s，Maria’s 1.补全对话 ----Whose bike is it Is it______(your/yours) ----No, it’s not______.(my/mine) _______is red. But this bike is blue . ----Is it Jane’s ----Sorry, I don’t know. Maybe it’s_______(her/hers). ----Jane,is this______bike (youryours) ----No,it’s not______.(my mine) You can ask Bill(男人名). Maybe it’s________.(him/his) ----Bill,is this bike_______ ----Oh,yes,it’s_______bike. Thank you very much! 2. 填入正确的人称代词和物主代词 1.Thisisn’t________knife._________isgreen. ( she ) 2.Theseareyourbooks，Kate.Put__________inthedesk，please. (they ) 3._______mustlookafter________things. ( you ) 4.WeiFang，isthat________rulerYes，it’s.( you ) 5.Theywantafootball.Give__________thegreenone，please. ( they) 6.It’sLinTao’sbag.Giveitto__________. ( he ) 7.Isthispencil-boxLiLei’sNo，___________isverynew. ( he ) 8.Thisboxistooheavy.Ican’tcarry_________.( it ) Don’tworry，Let__________( I )help__________. ( you) 9._____isaboy_____nameisMike.Mike’sfriendslike_____verymuch. ( he ) 10.Mysisterisin_____room._____isateacher. ( she ) 11.Janeisalittlegirl._____motherisanurse. ( she ) 12.Wearein_____classroom._____classroomisbig. ( we) 13.Myfatherandmotherareteachers._____arebusy ( them) 数词
介词和数词
第24讲介词和数词 介词 【真题体验】 1．Nanjing Lishui Strawberry Festival opened __C__ March in Fujiabian Modern Agricultural Park this year.(2014，南京) A．on B．at C．in D．to 2．I sometimes help my mom with her housework __C__ Saturdays.(2014，北京) A．at B．in C．on D．to 3．A ship from South Korea sank into the sea __B__ April 16，2014.(2014，滨州) A．in B．on C．at D．for 4．Some workers in that factory have to work __A__ night.(2014，嘉兴) A．at B．for C．with D．among 【考点梳理】 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 1．at，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：in May，in winter，in the morning，in the afternoon等。表示具体的某一天和某一天的上午、下午、晚上时用on，如：on Monday，on July 1st，on Sunday morning等。 2．since，after 由since和after引导的词组都可表示从过去某一点开始的时段，但since词组表示的时段一直延续到说话的时刻，因而往往要与现在完成时连用。而after词组所表示的时段为过去，因而要与一般过去时连用。如： They have lived here since 1978.自从1978年起，他们就住在这儿。 After five days the boy came back.五天后这个男孩回来了。 3．in，after in与将来时态连用时，表示“过多长时间以后”的意思，后面跟表示一段时间的词语。对此提问用How soon。after与将来时态连用时，后面只能跟表示时间点的词语。after与过去时态连用时，后面才能跟表示一段时间的词语。如： He will be back in two months.他将在两个月后回来。 He returned after a month.他一个月后回来了。 4．for，since for可以指过去、现在或将来，着重说明“多久”，后面接时间段。since意为“自从……
数词的用法
初中英语语法---数词的用法 一、数词的分类 1. 基数词 表示数目的词称为基数词。其形式如下： A．从1——10 one，two，three，four，five，six，seven，eight，nine，ten． B．从11——19 eleven，twelve，thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen． 这里除eleven，twelve，thirteen，fifteen，eighteen为特殊形式外，fourteen，sixteen，seventeen，nineteen 都是由其个位数形式后添加后缀-teen构成。 C．从21——99 整数几十中除twenty，thirty, forty，fifty，eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成。表示几十几时，在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D．百位数 个数基数词形式加“hundred”，表示几百，在几十几与百位间加上and． 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E．千位数以上 从数字的右端向左端数起，每三位数加一个逗号“，”。从右开始，第一个“，”前的数字后添加thousand，第二个“，”前面的数字后添加million，第三个“，”前的数字后添加billion。然后一节一节分别表示，两个逗号之间最大的数为百位数形式。 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion，two hundred and thirty-seven million，one hundred and sixty-six thousand，two hundred and thirty-four F．基数词在表示确切的数字时，不能使用百、千、百万、十亿的复数形式；但是，当基数词表示不确切数字，如成百、成千上万，三三两两时，基数词则以复数形式出现。 There are hundreds of people in the hall． 大厅里有数以百计的人。 Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day．每天有成千上万的人来参观秦兵马涌博物馆。 They went to the theatre in twos and threes．他们三三两两地来到了剧院。 G．表示人的不确切岁数或年代，用几十的复数形式表示。 He became a professor in his thirties．他三十多岁时成为了教授。 She died of lung cancer in forties．她四十来岁时死于肺癌。 It was in the 1960s．那是在二十世纪六十年代。 H．基数词的句法功能 基数词在句中可作主语、宾语、定语、表语、同位语。 The two happily opened the box．两个人高兴地打开了盒子。（作主语） I need three altogether．我总共需要三个。（作宾语） Four students are playing volleyball outside．四个学生在外面打排球。（作定语） We are sixteen．我们是16个人。（作表语）
数词介词连词
连词 用恰当连词完成下列各句，使其意思完整。 1．Five minutes earlier, _____ we could have caught the last train. 2．They may go to London, but they are not certain__________. 3．I have read one of this plays ______ a lot of his poems. 4．Do what you have been told, ________ you will be punished. 5．It is strange, _______ it is true. 6．I asked her to stay for tea, ______ I had something to tell her. 7．I remember _______ this used to be a quiet village. 8．It will be hours _______ she comes back. 9．I had no idea about it _______ he told me. 10．Air to us is _______ water to fish. 11．It worried her a bit ______ her hair was turning gray. 12．Never believe anything ________ any other person has believed it .Use your own mind. 13．It was _________ the weather was terribly bad that we had to put off the sports meet. 14. Jack, I’m sorry to trouble you, could I ask you a question? 15. ______ could theory do without practice，______ could practice do without theory. 16. I am reading a novel，______ she is reading a letter. 17. Something went wrong with my bike this afternoon，______ I walked home. 18. ______ she did not speak distinctly ______ I did not hear well. 19. Li Ping doesn't talk much，______ he thinks a lot. 20. She must go out，______ the lights are out. 21. I never saw him again，______ did I hear from him. 22. We were about to leave ______ it began to rain. 23. I often help him ______ he often helps me. 24. It doesn't look like rain，______ you’d better take your umbrella with you. 25. He was about to tell me the secret ______ someone patted him on the shoulder. 26. ______ does he write well, ______ he also speaks well. 27. It was some time ______ we realized the truth. 28.She thought I was talking about her daughter，____ ，in fact，I was talking about my daughter． 介词 1．Mr. Smith set out _______USA last week. 2．________ the correct leadership of the Party, we could not have succeeded. 3．My aunt came back _________ three days. 4．In this company we are paid _________ the month. 5．She looks quite young __________ her age. 6．You unlock the door ________ turning the key ________ right. 7．He was very clever _________ carelessness. 8．I like Mr. Miner's speech; it was clear and ______ the point. 9．Ok, I’ll go now and buy two tickets Sunday night. 10. We offered him our congratulations________ his passing the college entrance exams．
高考英语 数词 介词考点透析与精炼
高考英语数词介词考点透析与精炼 考试要求： 介词是高考英语试题中比较重要的一个考查点，近年来的高考在单项填空题中直接涉及到对介词的考查，主要包括常用近义介词的用法区别、介词的常见搭配、介词在特定语境中的选用和介词短语的用法等。 高考试题对数词的考查比重较小，主要以对倍数的表达方法及概数的考查为主。 知识总结： 数词部分 dozen和score的复数形式应注意以下几点： dozen表示一打，十二个；score表示二十；当dozen与数词，或many，several等连用时，不加“s”，所修饰的名词前常省去of，score则不然。 two dozen pencils两打铅笔 two score of pencils四十支铅笔 dozens of people= scores of people许多人 当后面的名词前有限定词时, dozen后应加of。 a dozen of these people two dozen of them three score and ten people（中不加of）七十人 序数词的用法： 序数词一般由基数词后加th构成，前面一般加定冠词the，表示“第几”；加不定冠词，则意为“又一，再一”。 I can do better if I have a second chance. 如果再有一次机会，我能做得更好。 基数词与序数词连用时，通常是序数词在前： the first two pages of the book 这本书的前两页 分数的表示法 分数由基数词和序数词合成，分子用基数词，分母用序数词，分子大于1时，分母的序数词要用复数形式。 1/3：one(a)third 2/3：two thirds three-sevenths：七分之三 特殊的表达： 1/2：one(a)half 1/4：one (a) quarter/one (a) fourth 3/4：three quarters 分子与分母之间加in或out of,分子在前，分母在后，分子分母都用基数词。 one in/ out of ten：十分之一 five in/ out of eight：八分之五 百分数的表示法： 表示百分数直接将数词放在单词percent前面即可：twenty percent=20% 百分之二十注意：分数和百分数后面不能直接接名词或代词，而用以下形式： 分数/ 百分数+of +冠词/ 限定词+名词/ 代词，其谓语动词与of后的名词在人称和数上保持一致。 Two-thirds of the money was spent on food.
初中英语介词和数词
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.
高中英语数词的用法总结
一、数词的分类 1. 基数词 表示数目的词称为基数词.其形式如下： A．从1——10 one,two,three,four,five,six,seven,eight,nine,ten． B．从11——19 eleven,twelve, thirteen, fourteen, fifteen, sixteen, seventeen,eighteen, nineteen． 这里除eleven, twelve, thirteen, fifteen, eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen构成. C．从21——99 整数几十中除twenty,thirty, forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成.表示几十几时,在几十和个位基数词形式之间添加连字符“-” 21 twenty-one 76 seventy-six D．百位数 个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and． 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eight E．千位数以上 从数字的右端向左端数起,每三位数加一个逗号“,”.从右开始,第一个“,”前的数字后添加thousand,第二个“,”前面的数字后添加million,第三个“,”前的数字后添加billion.然后一节一节分别表示,两个逗号之间最大的数为百位数形式. 2,648 two thousand six hundred and forty-eight 16,250,064 sixteen million two hundred and fifty thousand sixty-four 5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty-six thousand,two hundred and thirty-four F．基数词在表示确切的数字时,不能使用百、千、百万、十亿的复数形式；但是,当基数词表示不确切数字,如成百、成千上万,三三两两时,基数词则以复数形式出现. There are hundreds of people in the hall． 大厅里有数以百计的人. Thousands and thousands of people come to visit the Museum of Qin Terra-Cotta Warriors and Horses every day． 每天有成千上万的人来参观秦兵马涌博物馆. They went to the theatre in twos and threes． 他们三三两两地来到了剧院. G．表示人的不确切岁数或年代,用几十的复数形式表示. He became a professor in his thirties． 他三十多岁时成为了教授. She died of lung cancer in forties． 她四十来岁时死于肺癌. It was in the 1960s． 那是在二十世纪六十年代. H．基数词的句法功能