篇一:初中英语语法数词详解(打印版)
数词
.
1.基数词
(1)基数词的具体形式如下:
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.
注:标记为蓝色的单词特殊记忆,其他的词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
“,”前的数字后添加 thousand(千),第二个“,”前面的数字后添加 million(百万),第三个“,”前的数字后添加 billion(十亿)。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(注:只有百跟十之间才有and)
(2)基数词的用法
A.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。
B.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。
C. 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)
They three tried to finish the task before sunset.
他们三个人尽力想在日落前完成任务。(作同位语)
D. 基数词也可以表示顺序要添加定冠词。
the first lesson=Lesson One
the fifth page=Page 5(five)
the twenty-first room=Room 21(twenty-one)
E.时刻表示法
1. 表示几点钟用基数词加可以省略的o’clock
5:00 读作 five o’clock 或 five
2.
five past seven 七点过五分
half past six 六点半
a quarter past eight 八点过一刻
seven past eight 八点过七分
3. 后面加to,再加小时
ten to eight 差十分八点(七点五十分)
a quarter to twelve 差一刻十二点(十一点四十五分)
twenty to six 差二十分六点(五点四十分)
★在日常生活中,常用下列简单方法表示时间。
以小时、分种为单位分别读出数字。
6:31 读作 six thirty-one
10:26读作 ten twenty-six
14:03 读作 fourteen o three
16:15 读作 sixteen fifteen
18:30 读作 eighteen thirty
23:55 读作 twenty-three fifty-five
注:时刻表上的时间大多采用24小时表示法,这样就不需要用a.m.表示上午,
2. 序数词
(1)序数词的主要形式:
A.从第一至第十九
其中,one— first, two— second, three— third, five— fifth,eight—eighth,nine—ninth,twelve— twelfth为特殊形式数词后面添加“th”构成。例如:
six— sixth、nineteen— nineteenth.
B.从第二十至第九十九
改变结尾字母y为i,再加“eth”构成。
twenty——twentieth thirty——thirtieth
用几十的基数词形式加上连字符“-”和个位序数词形式一起表示。
thirty-first 第三十一
fifty-sixth 第五十六
seventy-third 第七十三
ninety-ninth 第九十九
C.第一百以上的多位序数词
由基数词的形式变结尾部分为序数词形式来表示。
one hundred and twenty-first 第一百二十一
one thousand,three hundred and twentieth 第一千三百二十
D
有时,序数词可以用缩写形式来表示。主要缩写形式有。
first——lst second——2nd third——3rd fourth——4th sixth——6th twentieth——20th
twenty-third——23rd
其中lst,2nd,3rd为特殊形式,其它的都是阿拉伯数字后加上th。
(2)序数词的用法
A.序数词的句法功能
序数词在句中可作主语、宾语、定语和表语。
The second is what I really need.
第二个是我真正需要的。(作主语)
He choose the second.
他挑选了第二个。(作宾语)
We are to carry out the first plan.
我们将执行第一个计划。(作定语)
She is the second in our class.在我们班她是第二名。(作表语)
注:序数词在使用时,通常前面要加定冠词 the;
但是如果序数词前出现不定冠词a或an时,则表示“再——”,“又——”。
We’ll go over it a second time.
我们得再念第二遍。
We’ve tried it three times.Must we try it a fourth time?
我们已经试过三遍了,还必须试一次(第四次)吗?
数词综合用法
1、年月表示法
(1).
the sixth(6th)century 公元六世纪
the eighteenth
(18th)century 公元十八世纪
the 1900`s 二十世纪
the 1600`s 十七世纪
注:用百位数整数表示的世纪比这一百位阿拉伯数字本身多一个世纪。
(2). 定冠词及基数词表示的世纪加十位整数的复数形式构成
in the 1930`s(in the thirties of the twentieth century或 in the nineteen thirties) 在二十世纪三十年代
in the 1860`s(in the sixties of the 19th century或 in the eighteen sixties) 在十九世纪六十年代
In the 1870`s when Marx was already in his fifties,he found it important to study the situation in Russia,so he began to learn Russian.
在十九世纪七十年代当马克思已经五十多岁时,他发现研究俄国的形势很重要,便开始学习俄语。
(3). 表示某年代的早期、中期和晚期,可以在定冠词后,年代前添加 early,mid-,late
in the early 1920`s 在二十世纪二十年代早期
in the mid-1950`s 在二十世纪五十年代中期
(4). 年月日表示法
A.年份用基数词可以以世纪、年代为单位分别来读。
1949 读作 nineteen hundred and forty-nine 或
nineteen forty-nine
1800 读作 eighteen hundred
253 读作 two hundred and fifty-three或two fifty-three
1902 读作 nineteen hundred and two或 nineteen o two
表示在哪一年,一般在年数前加介词in,使用year in the year two fifty-three B.C. 在公元前253年
但是,通常采用in加表示年份的阿拉伯数字。
B.
介词in加第一个字母大写的月份词表示。例如:in May在五月;
in July在七月。为了简便起见,月份与日期连用时,月份常用缩写形式表示。缩写形式除May,June,July外,其它的月份都由其前三个字母表示,但September除外(September——Sept.)。
January——Jan.一月 February——Feb.二月
March——Mar. 三月 April——Apr.四月
August——Aug.八月
September——Sept.九月
October——Oct.十月
November——Nov.十一月
December——Dec.十二月
C
the加序数词表示。在哪一天要添加介词on。
National Day is on Oct. 1.
国庆节是十月一日。(读作 October first)
此句也可以表示为 National Day is on the 1st of October.
May 5 五月五日(读作May fifth)
也可以表示为the fifth(5th)of May
Mar. 1(st) 三月一日(读作March first或 the first of March
)
(5).
morning,afternoon
,。但是,当这些词前后有一修饰限定的词作为定语,把
介词in应改为可以是介词短语、名词、形容词、定语从句等。
On a cold morning,the old man died lonely in his house.
在一个寒冷的早晨,这个老人孤独地死在自己的房子里。
I don’t want to be disturbed on nights when I have to study.
我不愿意在我必须学习的晚上被打扰。
The accident happened on the afternoon of July 7.
这次事故发生在7月7日下午。
We are to have a small test on Monday morning.
星期一早晨我们将进行一次小测验。
2、加减乘除表示法
(1)
用plus,and或add表示;
用is,make,equal等词表示。
2+3=? 可表示为:
How much is two plus three?
2+3=5
Two plus three is five.
篇二:初中英语语法-数词
数词
数词是指表示数目多少或顺序先后的词。表示数目多少的数词叫基数词,如 one, five, ten, thirty, sixty-five 等;
表示顺序先后的数词叫序数词,如 first, sixth, tenth, twenty-first 等。数词用法相当于名词和形容词,在句中可用作主语、宾语、表语、定语、同位语等。数词与不定代词、冠词、指示代词、形容词性物主代词等被称作限定词。
4.1 基数词
4.1.1 英语中没有“万”这个读数单位,要表示汉语中的“万”,英语需借用thousand一词,
如“一万”用“十个千”表示(ten thousand),
“十万”用“一百个千”表示(one hundred thousand)。
4.2.2 用作基数词单位的 hundred, thousand, million, billion 通常不带复数词尾-s,但若用于
表示数百、数千、数百万这样的泛指,则用复数。如:
About two thousand people died in the earthquake. 大约有两千人在地震中丧生。
Thousands of people go to the seaside every year. 每年成千上万的人到海滨去。
4.1.3 表示整十的基数词用复数形式可以表示人的大约岁数或年代。如:
He is in his early twenties. 他才二十出头。
This took place in the 1930s. 这事发生在20世纪30年代。
4.1.4 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and;
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(from )
4.2 序数词
4.2.1 第1至第19一般是在基数词后加th,但变化特殊的有one—first, two—second, three—
third, eight—eighth, nine—ninth, five—fifth, twelve—twelfth。
4.2.2 twentieth, thirtieth, fortieth 等表示整十的序数词,由相应的基数词将词尾y改为ie,
再加-th 构成。
4.2.3 first, second, third 通常可缩写为1st, 2nd, 3rd。凡是以th结尾的序数词可缩写为“基
数词+th”:4th, 5th, 9th, 11th, 60th, 128th等。
4.2.4 非整十的多位数,将个位数变成序数词即可:twenty-first(第21),thirty-sixth(第36),
ninety-ninth(第99),three hundred and sixty-fifth(第365)等。
4.2.5 hundred, thousand, million等序数词形式为 hundredth, thousandth, millionth 等。
4.2.6 序数词与冠词
(1) 序数词前一般要加定冠词the。如:
It's the third time I've been here. 这是我第三次到这里来。
(2) 表示在原有的基础上增加,即“又一,再一”时,用不定冠词。如:
Shall I ask her a third time? 我还要问她一次吗?
(3)下列4种情况不用冠词。
a.序数词前已有物主代词或名词所有格时,不能再用冠词。如:
This is Tom's second visit to China.她是汤姆第二次访问中国。
b.表示比赛或的名词时,通常省略定冠词。如:
He was (the) second in the English exam.在这次英语考试中他得了第二名。
c.序数词被用作副词时不用冠词。
I have to finish my homework first.我得先把作业完成好。
d.在某些习语中不用冠词。如at first起初, first of all首先, at first sight乍一看。
4.3 分数
英语分数词由基数词和序数词组成。
分子用基数词,分母用序数词,若分子大于“1”,则分母要用复数。如:
Three quarters of the students have passed the exam.
四分之三的学生考试及格了。
The WTO cannot live up to its name if it does not include a country that is home to one-fifth of mankind.
如果世贸组织不能容纳占世界人口五分之一的国家,那它就算不上世界贸易组织了。
4.4 百分数
百分数由“基数词+percent”构成。如:
With production up by 60 percent, the company has had another excellent year. 因为产量提高了60%,所以公司那年又取得了很好的效益。
About 60 percent of the workers in this company are young people.
这个公司约60%的工人是年轻人。
4.5 小数
与汉语一样,小数点前的数按普通基数词的读法读,小数点后的数按单个数字一一读出。小数点后的0通常读作oh,有时也读作nought或zero,小数点读作point:
one point five six(1.56), ten point three oh five
【说明】被大于“1”的小数修饰的名词要用复数,如说 1.3 meters,不说1.3 meter;
即使是被小于“1”的小数修饰,名词也通常可以用复数:One centimeter equals 0.3937 inches. 1厘米等于0.3937英寸。
4.6常见表达方法
4.6.1 表示日期:日期的写法(书面语)和读法(口语)稍有不同,如“十月一日”可以写成 October
1, October 1st, 1 October, 1st October, (the) 1st of October 等,表示月份的词也可用缩略式,如 Oct. 1, 1 Oct. 1,但是在口语中通常只有两种读法 October (the) first或the first of October。
1949年1949读作nineteen forty-nine
6月23日June 23rd 读作June (the) twenty-third或the twenty-third 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
4.6.2 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
4.6.3 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。
(2)序号与事物名词连用时分三种情况:
(A) 小序号可用“the +序数词+名词”或“名词+基数词”。
如第一次课可以说the First Lesson或Lesson One。
(B) 大序号通常只用“名词+数词”。
如808号房间Room 808;
168路公共汽车Bus No.168;
南京路1490号1490 Nanjing Road;
电话号码83545601(用基数词逐个念,0念字母O)。
(C) 用“a/the + number+基数词+名词”。
如a No.3 bus一辆三路公共汽车,the No.3 bus那辆三路公共汽车。
4.6.4 表示倍数
(1)倍数+as +形容词/副词(原级)+ as。如:
This bridge is three times as long as that one.这座桥是那座桥的三倍长。
(2)倍数+形容词或副词的比较级+than。如:O^
This bridge is three times longer than that one.这座桥是那座桥的三倍长。
(3)倍数+ the size/length/weight?+of+表示比较对象的名词。如:
This bridge is three times the length of that one. 这座桥是那座桥的三倍长。
(4)倍数+what引导的从句。如:
T he college is twice what it was 5 years ago.这所大学是它五年前的两倍。
4.6.5 年龄和年代表达方法
(1)年龄表达法
I'm 12 years old.
He began to learn the accordion at the age of four.
They have an 8-year-old son.
? 高频考点:“in one's + 基数词中整十数词的复数”表示“在某人几十岁时”,指不确切的年龄。
When he was in his thirties, he became a famous poet.
(2)年代表达法
表达年代应用“in the + 带有整十的年份的复数或-'s”形式。
in the 1990s/ in the 1990's
4.7数词的语法功能
4.7.1 作主语:The second was better. 第二个好些。
4.7.2 作表语:She was second in her class. 她在班上是第二名。
4.7.3 作宾语:I was among the first to arrive. 我是第一批到的。
4.7.4 作定语:There are fifty states in the US.美国有五十个州。
4.8用数词表示约数的五类方法
4.8.1 表示笼统数目的方法
可用 tens of, dozens of, scores of, hundreds of, thousands of, millions of 等表示。如:
I've been there dozens of times. 我去那儿去过几十次了。
Thousands of people were gathered at the airport. 数千人聚集在机场。
There were hundreds of people on the beach. 海滩上有成千上万的人。
Millions of dollars have gone into the building of this factory.
数以万百计的美金被投入修建这座工厂。
4.8.2 表示“少于”“接近”的方法
可用 less than, under, below, almost, nearly, up to 等来表示少于或接近某个数目。如:It cost me less than 10 pounds. 我买它没花上10英镑。
There's nothing below 5 dollars. 没有一样东西价钱在5美元以下。
Almost [Nearly] all the students passed the exam. 差不多所有的学生都通过了考试。
4.8.4 表示“多于”“超过”的方法
可用 more than, beyond, or more, over, above 等来表示超过或多于某个数目。如:He was away for more than a month. 他离开了一个多月。
There are ten chairs or more in the room. 房间里有十多把椅子。
The temperature is two degrees above zero. 温度是零上2度。
You have to be over 18 to see this film. 超过18岁的人才能看这部电影。
4.8.5 表示“大约”“左右”的方法
篇三:数词用法复习 练习题及 高考英语语法复习
数词用法复习 练习题及答案 高考英语语法复习
语法复习十六:数 词
高考重点要求:
1.掌握基数词、序数词、分数词、倍数、百分数、年月日、钟点、年龄、
序号的基本用法。
2.掌握不定数量词、约数词的表达方法。
数词在各个题项中,单选、阅读、听力、写作中发挥着很强的作用,往往用
以说明事实的精确性和可信性。数词是由两大部分构成的即基数词和序数词,而
其他数字表示法如分数,小数等均由这两大部分的不同组合而构成。
(三)数词的用法:
1.英语中年月日、点钟、序数词、分数词、算式列表
示例
2001.6.30
7:25
12:54
9:15
2:30
21:50
第21 英语表示法 June 30,2001 30June,2001 30thJune, 2001 seven twenty-five twenty-five past even twelve fifty four six to one nine fifteen a quarter past nine two thirty half past two twenty-one fifty 9:50p.m. twenty-first
第123 one hundred and twenty-third
a half
two and two-fifths
20% 20 per cent 20 percent
第七路公共汽车 Bus Number Seven
第201房间 Room 201
人民路153号 153 Renmin Road
4+8 =12 Four plus eight is twelve
11-7=4 Eleven minus seven is four.
6×5=30 Six times five is thirty.
20÷5=4 twenty divided by five is four.
A>B A is more than B.
A<B A is less than B.
A≈B A is approximately (近似地, 大约)equals to B.
A≠B A is not equal to B.
2.约数表示法列表
含义 英语表达
大于某数 more than
over
or more
小于某数 less than
under
below
or less
大约(某数) nearly
almost
up to
or
or so
about
some
例句 He has lived here for more than twenty years. she is over fifty. There're thirty people or more in the meeting-room. I have less than (not more than )fifty dollars. Children under seven are not allowed to enter. He would not sell it for below a hundred fifty dollars. The coat might cost him sixty dollars or less. She is nearly fifty now. Its almost three o'clock. Up to ten men can sleep in this tent. He spent four or five days writing the article. The distance is twenty miles or so. I visited that village about three years ago. Their team has some four or five players. The container can hold more or less twenty pounds of more or less water. around/round Let's make it round/around eight o'clock.
英语表达
dozens of
scores of
many, a good(great) many, many a (饰单数可
数名词)
hundreds of
thousands of ,thousands upon thousands of
millions of 汉译 几十、许多 许多 许多、大量 数以百计 成千上万 数百万 3.不定数量词“多”的表示法列表 被修饰名词的数 修饰可数名词
billions of 亿万
much , a great (good)deal of , 修饰不可数名词 许多、大量 a large amount of ,large amounts of
a lot of /lots of ,plenty of,a large quantity 修饰可数名词或不可数of , 许多、大量 名词 large quantities of
练习、数 词
1. Two __died of cold last winter.
A. hundreds old people B. hundred old people
C. hundreds old peoples D. hundred old peoples
2. He was only in__ at the time.
A. his 20'sB. the 20's C. his twenties D. the twenties
3. The two great men wrote those letters in__ .
A. 1870'sB. 1879sC. the 1870'sD. the 1870
4. I wonder if I can ask him__ time.
A. four B. fourthC. the fourthD. a fourth
5. He came out__ in the track events.
A. first B. one C. the firstD. the one
6. It was in 1939 that __broke out.
A. World War Second B. the World War Second C. Second World War
D. World War II
7. You'll have to spend __writing your report here.
A. one day or two days B. one day or twoC. a day or twoD. two days or one
8. He cut the cake__ .
A. in halvesB. in halfC. into halves D. into half
9. The earth is nearly__ the moon.
A. 50 time the size of B. 50 times the size of C. 50 times as size as D. 50 times as that of
10. Either you or the headmaster __the prizes for these gifted students at the meeting.
A. is handing in B. are to hand outC. are handing inD. is to hand out
11. __of the population here are peasants.
A. 20 percentsB. 20 percent C. the 20 percent D. the 20 percents
12. It's about__ , the thickness of a human hair.
A. two-fifteenth B. two-fifteenths C. two fifteen D. two fifteens
13. The price of such material was reduced__ .
A. by 18 percent B. to 18 percent C. at 18 percent D. for 18 percent
14. South of the equator, 81 percent of the surface of the earth__ water.
A. is B. are C. was D. were
15. They sold __boxes of such sweets last week.
A. four dozenB. four dozens C. four dozens of D. four dozen of
16. It took me __ days to finish drawing a beautiful horse.
A. a half dozen B. half a dozen C. haft dozens D. half dozen
17.__people were sent there to help fight against the flood.
A. Three scores of B. Three score of C. Three score D. Three scores
18. Don't leave you work,__ .
A. done half B. half doneC. a half done D. done a half
19. Nobody can do two things well __ .
A. at one timeB. at onceC. one timeD. once
20. He has__ books in his study.
A. several thousands B. some thousands of C. some thousands D. some thousand of
21. On National day__ people take part in all kinds of celebration.
A. hundreds of millions of B. millions of hundred of
C. hundreds millions of D. millions hundreds of
22. He has lived at__ for 30 years.
A. No. 101 Heping Street B. 101 Heping Street C. Heping Street 101 D. Heping street No. 101
23. You can find him in__ .
A. Room 201B.201 RoomC. the Room 20 D. the 201 Room
24. It's__ walk from here to my school.
A. two - hoursB. two hoursC. two - hourD. a two - hour
25. It was in__ when he was already in ___ that he went to Yan'an.
A. the 1940s, the 40s B. the 1940s, his forties C. 1940's, his fortiesD. the 1940's, his 40s
26. He went to the market and bought __eggs and some meat.
A. three dozen of B. three dozen C. three dozensD. three dozens of
27.Shortly after the accident two ___police were sent to the spot to keep order.
A. dozen ofB. dozens C. dozen D. dozens of (MET92 29)
28.Mr Smith ___me to buy several __eggs for the dinner.
A. asked, dozenB. suggested, dozens ofC. had, dozen D. persuaded, dozens of ('94上海)
29.____of the land in that district ___covered with trees and grass.
A. Two fifth, is B. Two fifth, are C. Two fifths , is D. Two fifths, are (2000上海)
30.Two ___died of cold last winter.
A. hundreds old people B. hundred old people
C. hundred old peoples D. hundred old peoples ('88MET.15)
31.It is not rare in ___that people in ____fifties are going to university for further education.
A.90s,theB. the 90s, / C.90s, theirD. the 90s, their ('99上海 6)
32.-Have you seen many sheep in the distance ? -Yes, ___.
A. thousand of them
C. two thousand of themB. two thousands of them D. two thousand them
语法复习十六:数 词
1.B
2. C 表示"几十"的数字的复数与所有格代词一起来用以表示人的年龄,本句为"二十多岁"。
3.C 定冠词"the"和数的复数形式在一起表示年代。
4.D 序数词前面加不定冠词表示"又一次"(已经四次了)
5.A 这里"first"有人说起副词作用,可以看成表语,也可以看做一种"取得第一名"的习惯用法。
6.D 序数词和名词共同构成的专有名词还可以是thc Second World War的形式。
7.C 只有C项为正确的表达方式,或者也可以写成"one or two days".再如:one hour and a half或one and a half hours.
8.B "in half"表示"分成一样大小的两半"。也可以说"cut?in two"
9.B 再如twice the height(depth,width,weight,etc.)of
10.D either?or?连接主语用就近原则。be to hand out the prizes意为"要颁发奖品"。
11.答案为B。百分比作修饰语,前面不加冠词且不能加复数。
12.答案为B。分数做定语,分子用基数词,分母为序数词,当分子大于1时,分母用复数,本题中,其它表达方式均不正确。
13.答案为A。表增加或减少的数量的百分比,用by+百分数表示。
14.答案为A。不可数的名词的百分比用单数;
可数名词的百分比则用复数。C项时态不对,另如:90 percent of the population here are peasents.这个中population的意思是people.
15.答案为A。"dozen"与数词或many,several等词连用时复数一般不加s,故
B、C两项不选。此外,dozen与数词连用做定语,一般也不加of.当然也有例外:Place them in dozens on the table.dozens表数量很多。Two dozen of these are wanted.dozen后面有of因为有限定词these,the等。Dozens of people were here.dozens of也表示"很多"。
16.答案为B。"半打"的表达方式一定要用"hall a dozen"。
17.答案为B。score做定语修饰名词用a(three)score of,而不用复数形式;
常用"scores of"为其复数形式,意为"大量",但有:three score and ten,a score or more
18.答案为B。"hall"起副词作用,修饰过去分词"done",因为这个过去分词表状态,故"half"应在"done"前。再如:well done,well known,不用a half修饰done,故不选C、B两项。
19.B意为"同时",不是"立刻"。
20.B
2l.A 如:tens of thousands of(小数在前,大数在后)thousands and thonsands of(两数一样大)。
22.B 居住的门牌号用介词at+号数+街道名"。
23.A
24.答案为D。"walk"作为名词,常与不定冠词连用。注意:在表数量的合成词中,名词部分为单数,如:a two-year-old boy.
25.答案为B。"在20世纪40年代",必须有定冠词"the".此外,年代后要加's或s。"他已经40多岁了"要用in his forties。
26.答案为B。dozen与数词或多或少several, many连用时,复数不加s。dozens of表示数量很多,在修饰有these,the等词限定的名词时,可用dozen of的形式。如:three dozen of these eggs.
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