内容正文:
项目二 语法过关
专题五 数词
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语法梳理
考点综合过关
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考点1 基数词
考点复习
1.基数词的构成
(1)1~12应逐个记忆;
(2)13~19的基数词都以-teen结尾;
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(3)表示“整十”的基数词都以-ty结尾。其中特别注意 twenty, thirty,
forty, fifty, eighty 的写法。
(4)21~99的基数词表示“几十几”,需在十位和个位之间加连字符“-”。
forty-five四十五
(5)百位数与十位数及个位数之间要加and。
one hundred and twenty-three。一百二十三
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2.基数词的用法
(1)表示数量的多少。
three students三名学生
(2)表示年份。
2017 读作 two thousand and seventeen
(3)表示时刻。
2:40读作 two forty
(4)表示编号。名词单数+基数词,名词的第一个字母要大写。
Room 203 203房间
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(5)“数词-单数名词-形容词”构成复合形容词,作定语,修饰名词。
an eight-year-old boy一名八岁的男孩
(6)“基数词+计量单位+形容词(长、宽、高、深等)”表示计量。
10 kilometers long十千米长
(7)表示某人“几十多岁时”和“几十世纪几十年代”。
in his fifties在他五十多岁时
in the 1990s在二十世纪九十年代
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对点过关
1.(2024·丹东模拟)Helen loves reading. She has read ________
books this month.( )
A
A. five B. fifth C. five of D. fifth of
2.(2024·成都模拟)John began to make a living by himself ________
( )
B
A. in his thirty B. in his thirties
C. in the thirty D. in the thirties
3.(原创)Time is not enough for the work.________ people are
needed, I think.( )
D
A. Other two B. Only two C. Two another D. Two more
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考点2 序数词
考点复习
1.序数词的构成
(1)序数词1~19 除了第一(first)、第二(second)、第三(third)是
独立单词外,其余一般是由基数词后加-th 构成。但其中第五(fifth)、第
八(eighth)、第九(ninth)、第十二(twelfth)的拼写要特别注意。
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(2)表示“几十”的整十两位数的序数词是先将词尾中的y变为ie,再加-th。
如:thirtieth。
(3)二十以上的非整十多位数,只需将个位数变成序数词即可,十位、百
位、千位数保持不变。如:twenty-first。
(4)序数词的缩写可以用“对应的阿拉伯数字+词尾最后两个字母”来构成。
如:1st, 2nd, 4th, 22nd, 55th。
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巧学妙记
基变序,有规律,牢记first, second, third;加-th从四起;八减t,九去e;
five, twelve两兄弟,f来把ve替;整十基数变序数,ty变成tie;若是碰到几百几
十几,只变个位就可以。
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2.序数词的用法
(1)表示顺序。序数词表示顺序时,其前要加定冠词 the,后接单数名词。
the first woman astronaut第一位女宇航员
(2)用于最高级前,表示“第几最……的”。
the second longest river 第二长河
(3)用“a+序数词+单数名词”表示数量上再增加“一”。
I need a second cup of tea.我需要再来一杯茶。
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对点过关
4.(2024·长春模拟)May is the ________ month of a year.( )
C
A. fifty B. fifteen C. fifth D. five
5.(2024·河池模拟)Kate is a school girl. She got many presents on
her ________ birthday.( )
D
A. nine B. the ninth C. ninetieth D. ninth
6.To finish the task, we've tried three times, and after dinner we'll
try ________ time.( )
B
A. the fourth B. a fourth C. fourth D. four
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考点3 分数
考点复习
1.分数的表达法:分子用基数词,分母用序数词。分子大于1时,分母要加-s。
one second或 a/one half 二分之一
two thirds三分之二
2.“分数+of+名词/代词”作主语时,谓语动词的单复数与名词/代词保持一致。
One third of the girls are good at singing in our class.我们班三分之一
的女生擅长唱歌。
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对点过关
7.(2024·上海模拟)The number of the cars in our neighborhood is
about eight ________, and ________ of them are new cars.( )
A
A. hundred; two thirds B. hundred; two third
C. hundreds; two thirds D. hundreds; two third
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8.(2024·扬州模拟)About ________ of the teachers in our school
________ born in ________.( )
B
A. two thirds; was; 1970
B. two thirds; were; the 1970s
C. two-third; was; 1970s
D. two third; were; the 1970
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考点4 概数的用法
考点复习
1.表示确切的数字(具体数字+概数词+名词复数)。hundred, thousand,
million 等词与具体的数字 one, two...或 several, some, many等连用,
要用单数形式。
five hundred computers 500台电脑
two thousand books两千本书
many million buildings几百万栋楼房
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2.表示不确切的数字(概数词加s+of+名词复数)。hundred, thousand,
million等词与 of 连用时,要用复数形式,但前面不能再加数字。
thousands of schools成千上万所学校
millions of trees数以百万的树
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对点过关
9.(2024·呼和浩特模拟)—Excuse me, how does this number 2,146
read?
—It reads ________.( )
C
A. two thousands and one hundred and forty and six
B. two thousand and one hundred and forty-six
C. two thousand, one hundred and forty-six
D. two thousands, one hundred, forty-six
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10.(2024·海南模拟)________ people are members of Green China in
our city.( )
B
A. Hundred of B. Hundreds of C. Hundred D. Hundreds
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单项填空
1.(2024·云南红河州二模)Science Magazine wrote that ________ of
the world's glaciers(冰川) may disappear by the end of
________.( )
D
A. two thirds: 2090th B. two third; 2090s
C. two third; 2090th D. two thirds; 2090s
2.My aunt has only one child, and she wants ________ child.( )
B
A. the second B. a second C. two C. second
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3.—I like the number “9” best, because I think it stands for “long
lasting”.
—Me too. So I chose ________ floor to live on.( )
C
A. nine B. ninth C. the ninth D. nineteen
4.He got ________ birthday cakes on his ________ birthday.( )
D
A. second; fifteen B. two; fifteen
C. second; fifteenth D. two; fifteenth
5.In our city museum, there are many old things from two ________
years ago on show.( )
C
A. thousands B. thousands of C. thousand D. thousand of
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6.As we all know, the Yellow River is ________ longest river in
China.( )
B
A. the twice B. the second C. twice D. second
7.My mother will be ________ years old next week. I'm planning to
buy a gift for her ________ birthday.( )
B
A. fourty; fourtieth B. forty; fortieth
C. fourty; fortieth D. forty; fourtieth
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8.—It is Mom's ________ birthday next Wednesday. What should we
do?
—What about buying her ________ flowers to show our love?( )
C
A. forty; forty B. forty; fortieth
C. fortieth; forty D. fortieth; fortieth
9.The couple have two kids. They are happy that they'll have a
________ one soon.( )
C
A. first B. second C. third D. fourth
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10.During the May Day holiday, we stayed in a mountain village
with ________ trees around.( )
D
A. thousand of B. thousand C. thousands D. thousands of
11.—How old is your daughter?
—________.We had a special party for her ________ birthday
yesterday.( )
B
A. Nine; nine B. Nine; ninth
C. Ninth; ninth D. Ninth; nine
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12.It's said that ________ of the water around the world ________
polluted.( )
D
A. two third; has B. two thirds; have
C. two third; are D. two thirds; is
13.It's the ________ time for me to come to this place. I don't know
anything about it.( )
A
A. first B. second C. third D. last
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14.Tom is ________ boy. He's very happy at school.( )
B
A. a eighteen-year-old B. an eighteen-year-old
C. an eighteen-years-old D. a eighteen-years-old
15.To finish the project, we've tried four times, and after dinner
we'll try ________ time.( )
B
A. the fifth B. a fifth C. fifth D. five
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16.—Is your home far from school?
—No. It's only ________ walk.( )
B
A. ten-minute's B. ten minutes' C. ten minutes D. ten-minute
17.The boy always stays there for ________.( )
C
A. one and half hour B. one and a half hour
C. one and a half hours D. one hours and a half
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18.Basketball is so exciting that ________ people play it for fun.( )
D
A. million B. two millions C. million of D. millions of
19.Come on, children. We have already done ________ of the
work.( )
C
A. two three B. two third C. two thirds D. second three
20.—What's the date today?
—It's December ________, 2024.( )
C
A. 17's B. the seventeen's
C. 17th D. seventeenth's
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