专题四 数词
1． 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
2．—Mum，the beautiful card I made last night is just for your C birthday.
—Oh，thank you，my dear！(2016，泰安)
A．forty B．fourteen C．fortieth D．fourth
3．—Do you know the boy A is sitting next to Peter?
—Yes.He is Peter's friend.They are celebrating his______birthday.(2016，达州)
A．who；ninth B．that；nine
C．which；ninth D．that；the ninth
4． The environment here becomes better and better. A birds are coming back.
(2016，重庆B卷)
A．Thousands of B．Thousand of
C．Thousands D．Thousand
5． D of the farmland here_______with rice.(2016，天水)
A．Two thirds；is covering B．Two third；is covered
C．Second third；are covering D．Two thirds；is covered
6．—What do you think of the environment here?
—Wonderful！ A of the land________covered with trees and grass.(2016，滨州)
A．Two fifths；is B．Two fifth；is
C．Two fifths；are D．Two fifth；are
7． D of the students in Class 6 have lunch at school.(2016，兰州)
A．Two fifth B．One thirds
C．Three fifth D．Three quarters
8．—What should we do now，Mr.Clark?
—Please turn to Page A and look at the__________picture.
A．Twelve；fifth B．Twelfth；fifth
C．Twelve；five D．Twelfth；five
9． I live in Room 403. Sam lives in the room right above mine, on the C floor.
A．third B．three C．fifth D．five
10．Mary is ten.Lily is three years older than Mary and two years younger than Jane.Jane is
D ．
A．thirteen B．eight C．eleven D．fifteen
课件12张PPT。专题四 数词考点一 基数词
1．基数词的构成
①1～12独立成词：one，two，three，four，five，six，seven，eight，nine，ten，eleven，twelve。
②13～19的基数词以-teen结尾。要注意thirteen，fifteen，eighteen的拼写。
③表示整“十”的基数词：20～90的基数词都以-ty结尾。其中特别要注意twenty，thirty，forty，fifty，ninety的正确写法。
④21～99的写法是：十位数加个位数，中间用连字符号“-”连接。如：26 twenty-six; 57 fifty-seven。
⑤101～999的构成是：百位数与十位数之间用and连接。如：123 one hundred and twenty-three。⑥hundred，thousand，million，billion等词在表示确定数目的时候，直接在前面加基数词；表示不确定数目时，要在它们后面加s，其后还要加of。如：
three hundred students三百名学生
thousands of students成千上万的学生2．基数词的用法
①表示数量的多少。
②表示年份。1988读作nineteen eighty-eight
③表示时刻。7：00读作seven o'clock
8：30读作half past eight/eight thirty
3：05读作five past three/three five
5：48读作twelve to six/five forty-eight
④表示顺序。单数名词＋基数词，名词的第一个字母通常要大写。如：
Class Two；Room 12；No.3 Middle School
【注意】“单数名词＋基数词”可转换成“the＋序数词＋单数名词”，此时名词的第一个字母不大写。如：
Lesson Three＝the third lesson第三课⑤“数词＋单数名词”相当于合成形容词作定语(如：a three-year-old girl)。合成形容词中的名词一定是单数。合成形容词不能作表语，后面必须跟所修饰的名词。
⑥与表示时间、距离、长度的名词一起构成“数词＋单位名词＋形容词”，表示事物的形状、年代及距离等。如：ten years old，3600 meters long。
⑦“几十”的基数词复数形式可用来表示某人约几十岁或年代。如：
In his sixties，he rode a bike round the world.在他六十岁的时候，他骑自行车环游世界。
The light was invented in the 1870s.电灯是在十九世纪七十年代发明的。
⑧与another，more连用时，表示在已有基础上再增加—定数量。如：
another three hours；two more cakes1．Linda' mother looks young，but actually she is in her ___．
A．sixties B．sixtieth C．sixty years old
2．—How far is it from your home to your school?
—It's about____
A．2 kilometer long B．five minutes' walk C．five minutes walk
3．Please write down the new words in the text of _____．
A．Lesson Ten B．the Lesson Ten C．Tenth Lesson
4．—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
5．—How old is your daughter?
—________．We had a special party for her birthday yesterday.
A．Nine; nine B．Nine；ninth C．Ninth；ninthBBABB考点二 序数词
1．序数词的构成
①序数词多数是由“基数词＋th”构成。如：six→sixth，seven→seventh等。
②以y结尾的整十的数词，先将y改为i，再加-eth。如：fifty→fiftieth，seventy→seventieth等。
③21以上的非整十的数词，将末位数(即个位数)改为序数词，其他的位数仍用基数词。如：
twenty-one→twenty-first，thirty-two→thirty-second，two hundred and ninety-eight→two hundred and ninety-eighth等。
④少数的序数词属于特殊情况，而且这类词也常常是考点，大家要特别注意记忆。如：
one→first，two→second，three→third，five→fifth，eight→eighth，twelve→twelfth。
注：fourteenth(第十四)，fortieth(第四十)，ninth(第九)，nineteenth(第十九)，ninetieth(第九十)。2．序数词的用法
①表示顺序。序数词表顺序时，其前须用定冠词the，后接单数名词。但是如果序数词前出现人称代词，则不加the。如：
I'm the first one to arrive here.我是第一个到达这里的。
Today is my thirtieth birthday.今天是我三十岁生日。
②用于最高级前。如：
John is the second tallest boy in our class.约翰是我们班第二高的男孩儿。
③用于分数。分子用基数词，分母用序数词。分子为1，分母用单数，分子大于1，分母用复数。如：
one fifth，three fifths。
—些习惯用法：1/4也可表示为a quarter，3/4也可表示为three quarters，1/2也可表示为a half。④编号表示法。即“名词＋基数词＝the＋序数词＋名词”，如：
第一课Lesson one＝the first lesson；2路公交车Bus No.2＝the No.2 bus有时也可以直接用数字表示。如：Room 206，Class 2，Grade 1...(注意：使用时要注意大小写)
【注意】
?带分数的词组作句子的主语时，谓语动词的单复数与分数后的名词保持一致。如：
Two fifths of the apple is eaten.这个苹果被吃了五分之二。
Two fifths of the apples are red.五分之二的苹果是红的。
?表示数量上再增加“一”，用：a(an)＋序数词＋单数名词。如：
She had a second child.她有了第二个孩子。考点三 数词的特殊用法
1．hundred，thousand，million，billion的运用。在构成具体的数字时，用单数形式。表达不具体的多数时用其复数。如：
two hundred students二百名学生
thousands of students成千上万的学生
2．与another，more连用时，表示在已有基础上再增加一定数量。如：
another three hours或three more hours。
3．“一两天”可表达为：a day or two或one or two days；
4．有关“半”的表达：three years and a half或three and a half years三年半；half an hour半小时。1．To many foreigners，Guangzhou has become their ____hometown.
A．two B．second C．the second
2．There're many students in our school. _____of them girls.
A．One third; is B．One third；are
C．Two thirds；is
3．It is the boy's _____birthday today.He is five years old now.
A．fifteen B．fifth C．five
4．Mr. King bought his son a new bike as a gift for his ____birthday.
A．nine B．ninth C．the ninth
5． ____ of our classmates are good at basketball.
A．Three quarters B．Three fourth
C．third fourBBBAA请完成【实战演练】
