课件17张PPT。第四节 数词 数词有两种，基数词和序数词。表示数目多少或顺序多少
的词叫基数词，如：one, two, twenty 等。基数词一般和可数名
词连用，表示两个或两个以上事物的名词要用复数形式，如：
one book (一本书); three dogs (三条狗)。表示先后顺序的数词叫
序数词，如：first, second, third。一、 巧记数词口诀
1.记基数词1 至 12 要牢记，13 至 19 词尾要加-teen；
thirteen, fifteen, eighteen 分别记；20 至 90 整十数，每个词后都加-ty；若要表示“几十几”，“个位”“十位”连号写；
若要表示“几百几”，hundred 之后 and 莫忘记。2.记序数词：一、二、三，特殊记；八去 t，九去 e，ve 要用 f 替；
见 y 变成 i 和 e, 词尾加上 th；
若是遇到几十几，只变个位就可以。 二、数词的各种表达
1.分数
分子用基数词表示，分母用序数词表示，当分子大于 1 时，
分母的序数词用复数。如：1/3—a/one third3/5—three fifths4/9—four ninths 注意： (1)特殊表达：1/2 是 a half(不可读a second), 1/4 是
a quarter 或 one fourth, 3/4 是 three quarters 或 three fourths。
(2)分数作主语时，谓语动词的单复数选择要依据分数后所
跟名词的单复数而定。如：
Two fifths of the villagers are from South China.五分之二的
村民来自中国南方。
Two fifths of the food is from South China. 五分之二的食物
来自中国南方。2.百分数(1)百分号读作 percent, 如：30% 读作 thirty percent。
(2)百分数作主语时，谓语动词的单复数选择要依据百分数后所跟名词的单复数而定。如：Sixty percent of the workers in this factory come from thecountryside.这个工厂里面有 60%的工人来自农村。Seventy percent of the earth is covered with water. 地球有70%被水覆盖。 3.小数
对小数的表达，英语的习惯通常都不用文字而直接使用阿
拉伯数字。因此只学会读小数就已足够了，小数点以下的数目
通常都按个数直接读下去就可以(此点与中文读法相同)。 如：0.5—half
0.25—point two five0.2—point two/one fifth
0.092—point zero nine two9.6 秒—nine point six seconds
$2.5 million—two and a half million dollars 4.年、月、日的表达法
通常顺序为“月日，年”，年用基数词表示，日用序数词
表示。如：
—What's the date today？今天是几月几日？
—It's October 21st, 2009 today.今天是 2009 年 10 月 21 日。
5.年的读法
1906—Nineteen hundred and six/Nineteen o six
1997—Nineteen ninety-seven2000—Two thousand1900—Nineteen hundred
2008—Two thousand and eight6.时间的表达法(1)直读法：直接按顺序读出数字。如：
5：09—five o nine6：25—six twenty-five
7：42—seven forty-two(2)整点钟后可加 o'clock。如：
It's five (o'clock).现在五点整。 (3)逆读法：先读分钟，再读点钟。
①30 分钟以内，包括 30 分钟，用介词 past，表示“几点过
几分”。 如：
8：05—five past eight
9：15—fifteen (a quarter) past nine
10：30—half past ten
②30 分钟以上，用介词 to，表示“几点差几分”。 如：
5：35—twenty-five to six3：45—a quarter (fifteen) to four9：55—five to ten③特殊表达：half 半小时； quarter 一刻钟(15 分钟)。如：
half an hour 半小时
one and a half hours 一小时半(＝one hour and a half)
a quarter to eight 7：45
7.表示概数时，基数词要用复数。如：in his thirties 在他三十多岁时in the 1980s 在 20 世纪 80年代 8.hundred, thousand, million, billion 等词前面有具体数字
时，不管大小，要用单数；这些词若与 of 连用时，则必须用复
数形式，这时它们前面不加任何数词，但可被 many, several 等
词修饰。如：two thousand people, thousands of people, many
thousands of 等。 9.序数词一般表示顺序，其前通常要加上定冠词 the，序数
词之前若有不定冠词 a/an，则表示“再，又”的意思。如：
I'm reading the fifth part of the book.我正在读这本书的第五部分。Can we have a third try？我们能再试第三次吗？一、数字表达法
二、数词和冠词的关系
1.一般情况下，序数词前要加定冠词 the，但基数词前不加
冠词。如：
Sunday is the first day of a week.星期天是一周的第一天。2.“a/an＋序数词”表示“又一、再一”。如：Although I failed twice, my father encouraged me to have athird try.虽然我失败了两次，但是爸爸还是鼓励我再试第三次。3.“of the＋基数词”表示“范围”。如：She is the most beautiful girl of the three.她是这三个女孩中最漂亮的一个。三、another, other 和 more 修饰数词的用法1.another another 表示“另一个”时只跟可数名词单数，而表示“另
外的，额外的，附加的”之意时，可跟带有 few 或具体数字的
复数名词，此时可把“数词＋复数名词”看作是一个整体。如：—Have you finished your report yet？你的报告完成了吗？
—No, I will finish it in another 10 minutes.没有，还需再多 10分钟才完成。There is room for another few people in the back of the bus.公共汽车后面还能再多坐几个人。2.other 表示“另外的”时接复数名词，如与具体数词连用，则置
于数词之后，但与定冠词 the 连用时，other 要放在数词前。如：
Mr.Smith asked me to fetch three other recorders.史密斯先生让我再拿三台录音机来。Do you know where he found the other two photos ？你知道他是在哪里找到另外两张照片的吗？3.more(1)more 一般位于数词之后名词之前，有时也可置于名词之后。如：One more step (One step more), and I'll shoot you.再走一步，我就开枪打死你。Where shall we be in ten more years？再过十年，我们会在什么地方呢？(2)more 除跟数词外，还可与 a little, a few, a lot, several 等词连用，而且名词也可以是不可数名词。如：I'd like to buy a few more copies of English Weekly.我想再买几份《英语周报》。She earns a lot more money a month than I.她每个月挣的钱比我多得多。第四节 数词
( )1.(2013年兰州，32)In this exam, you're asked to write a composition of about ________.
A．90-words B．90-word C．90 words D．90 word's
( )2.(2013年宜宾，32)—“Food Safety” has become one of the hottest topics recently.
—Yeah, it receives ________ Internet hits (点击) a day.
A．thousands B．thousand of C．thousands of D．ten thousands
( )3.(2013年雅安，16)We planted ________ trees last year.
A．hundreds of B．hundred of C．five hundreds D．five hundred of
( )4.(2013年达州，26)—How was your weekend?
—Great! It was my grandmother's ________ birthday.We enjoyed ________.
A．ninth; themselves B．ninetieth; ourselves
C．the ninetieth; ourselves D．nineteenth; themselves
( )5.(2013年东营，25)On February 25, 2013, Li An, a Chinese director, won the best director again.It is his ________ time to win an “Oscar”．
A．first B．three C．twice D．second
( )6.(2013年宿迁，6)________ of the coats ________ made of cotton.They feel comfortable.
A．Two-thirds; is B．Two-thirds; are C．Two-third; is D．Two-third; are
( )7.(2013年梅州，34)Unit ________ is easy but ________ unit is difficult.
A．Sixth; seven B．Six; seven C．Sixth; the seventh D．Six; the seventh
( )8.(2013年广东，29)—Excuse me, sir.Here's a package for Lin Tao.Which room does he live in?
—________.
A．308 Room B．Room 308
C．The Room 308 D．The 308 Room
( )9.(2014年梅州，33)The sinking accident in Korea happened ________ April 16, 2014 and ________ people lost their lives.
A．in; hundreds B．on; many hundreds
C．on; hundreds of D．at; many hundred of
( )10.(2014年广东，29)It's never too old to learn.Karl Marx began to learn English in his ________.
A．the fiftieth B．fiftieth C．fifty D．fifties
( )1.Mrs.Read lived on the ________.
A．twelve floors B．twelfth floors
C．twelve floor D．twelfth floor
( )2.I was born in________.
A．nineteen seventy eight B．nineteen seventy-eight
C．nineteen and seventy eighth D．nineteen and seventy eight
( )3.This room is ________ as large as that one.
A．three time B．three times
C．third time D．the third times
( )4.It took me ________ to find out the key to my house.
A．one and half hours B．one and a half hours
C．one and a half hour D．one and half hour
( )5.There are two ________ students on the playground.
A．hundred B．hundred of C．hundreds D．hundreds of
( )6.—How was your day off yesterday?
—Perfect! It was ________ birthday of my grandma's.We had a big family celebration.
A．the eightieth B．eighty C．eightieth D．the eighty
( )7.________ is Teachers' Day.
A．September the ten B．September the tenth
C．October the tenth D．September ten
( )8.There are ________ people in my family.We live on the________ floor in a tall building.
A．five; six B．fifth; sixth
C．fifth; six D．five; sixth
( )9.—Where are they going to have a meeting?
—In ________.
A．101 Room B．the 101 Room
C．Room 101 D．the Room 101
( )10.—It's 7：15.
—Yes, it's ________.
A．a quarter past seven B．a quarter to eight
C．fifteen to seven o'clock D．seven fifteen o'clock
( )11.Which of the following is WRONG?
A．He is a fifteen-year-old boy. B．He is at the age of 15.
C．He is a boy of 15. D．He is fifteen year old.
( )12.The road is over ________ metres long.
A．six hundred and fifty-two B．six hundreds and fifty-two
C．six hundred, fifty-two D．six hundred, fifty and two
( )13.________ people went to the concert that was held in Jinyun Square ________ the night of April 25.
A．Thousands of; in B．Thousand; on
C．Many thousand; in D．Thousands of; on
( )14.About ________ of the workers in the factory were born ________
A．two-thirds; in 1970's B．two-thirds; in the 1970s
C．two-thirds; in the 1970s' D．two-third; in 1970s
( )15.—Have you seen the CCTV news on TV?
—Yes, ________ children had a good festival on the ________ Children's Day.
A．millions; sixtieth B．millions of; sixty
C．ten million; sixty D．ten millions; sixtieth
第四节 数词
真题·体验感悟
1—5 CCABD 6—10 BDBCD
演练·巩固提升
1—5 DBBBA 6—10 ABDCA 11—15 DADBA
