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一、考查基数词的表达法
三位数以内基数词的表达法：个位、十位之间用连字符，十位、百位之间用and。 例如：
(2007山东济南市) 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
【解题点拨】 本题考查基数词的表达法。 hundred前面有数词时，即使这个数词大于1，也用hundred，不用hundreds，且百位与十位之间用and连接。故答案为A。
二、考查基数词的用法
1. 表示街道、建筑物、学校的序号时，可用“名词(首字母大写) + 基数词(英语首字母也大写)”，也可用“the + 序数词 + 名词”。例如：
(2007浙江省) —Where is the head teacher？
—Maybe he is in____ .
A. Two Room B. the Two Room
C. Rooms two D. Room Two
【解題点拨】 此题考查基数词表顺序时的特殊用法。基数词一般放在名词之后，且首字母要大写。故答案为D。
2. 表示时间时，整点钟用“基数词 + o’clock”表示，几点过几分用“分钟数 + past + 钟点数”，几点差几分用“分钟数 + to + 下一钟点数”。 例如：
(2007黑龙江哈尔滨市) —It’s 7:45.
—Yes，it’s____ .
A. a quarter past seven B. a quarter to eight
C. fifteen past seven o’clock D. seven fifteen o’clock
【解题点拨】 此题考查时间表达法。表示钟点过半要用“所差的分钟数 + to + 下一个钟点数”。故答案为B。
三、考查基数词的复数形式
ten，hundred，thousand，million，billion等词单独与of短语搭配使用时，可用其复数形式。例如：
(2007安徽芜湖市) —How many people will come to Beijing next year？
—It’s hard to say.____ people，I think.
A. Million of B. Millions of
C. Three millions D. Three millions of
【解题点拨】 句中空白处的数词后面是表示复数意义的名词people，所以该空应该填Millions of。 故答案为B。
四、考查分数的构成形式
分数词的构成方法：分子用基数词，分母用序数词。分子大于1时，表示分母的序数词后面加-s。 另外还要注意下列特殊的表达形式： a half = one second (1/2)，one quarter = one fourth (1/4)，three quarters = three fourths (3/4)。例如：
(2007北京市) About____ of the books in our school library are written in Chinese.
A. four fifth B. four fifths
C. fourth fifths D. fourths fifth
【解题点拨】 此题考查分数的表达法。题中的分子four大于1，表示分母的序数词fifth后面应加“-s”。 故答案为B。
五、考查序数词的构成及用法
1. 序数词前面加定冠词表示“第几个人或物”，而序数词前面加不定冠词，则有“再一、又一”的含义。例如：
(2007四川广元市) —Sandy，our son is 9 years old tomorrow.
—Oh，yes. We should have a party for his____ birthday.
A. nine B. ninth C. the ninth
【解题点拨】 表示“他的9岁生日”，其中的9应该用序数词表示。故答案为B。
(2007浙江衢州市) —Which floor does Mr Hu live on？
—He lives on____ floor.
A. tenth B. the tenth C. ten D. the ten
【解题点拨】 表示“第十层”应该用the tenth floor。 故答案为B。
(2007天津市) Both of the two rulers are broken. I want to buy a____ one.
A. three B. third C. fourth D. ×
【解题点拨】 两把尺子都断了，我还要再买一把。言外之意，“我要买两把尺子之外的第三把尺子”。所以答案为B。
2. 序数词还可以用在形容词最高级前面作修饰语。例如：
(2007山东济南市) He is____ in our class.
A. the fourth tallest B. fourth tallest
C. four tallest D. the four tallest
【解题点拨】 句意为“他在我们班是第四个个子最高的同学”，句中的in our class是比较范围，与之相搭配的应为“the fourth tallest”。 故答案为A。
六、考查与数词有关的词语
1. 基数词可与表示度量单位的词连用。其词序常为“数词 + 量词 + 形容词”。例如：
(2007河南郑州市) The river is more than____ .
A. twenty metre wide B. twenty metres wide
C. twenty metre of wide D. wide of twenty metre
【解题点拨】 表示物体或人体的“宽”、“长”、“深”时，应该用“基数词 + 量词 + 形容词”。基数词超过“1”时，量词为复数形式。故答案为B。
2. other，more置于数词之后，another置于数词之前，都表示“还；再”之意。例如：
(2006山东烟台市) —Do you have enough students to carry the boxes？
—No，I think we need____ .
A. anotherB. two others
C. more two D. two more
【解题点拨】 another后面应接所修饰的名词或代词，others不可位于数词之后，more可位于数词之后。故答案为D。
3. 表示“半个……”，可用 “half a/an + 可数名词单数”。表示“几个半……”，可用“基数词 + and a half + 复数名词”或“基数词 + 可数名词(单、复)数 + and a half”。 例如：
(2007湖北武汉市) Do you want to buy____ pork？
A. half kilo B. half a kilo
C. a kilo half D. a half kilo
【解题点拨】 half a kilo意为“半公斤”。故答案为B。
(2006浙江省) It took me____ to find out the key to the drawer.
A. one and half hours B. one and a half hours
C. one and a half hour D. one and half hour
【解题点拨】 一个半小时的表达方式为one and a half hours或one hour and a half。 故答案为B。
巩固练习：
1.____ people were hurt in the accident.
A. Hundred of B. Hundred
C. Hundreds D. Thousands of
2. About____ men and women are in the square.
A. two thousand B. two thousand of
C. two thousands D. thousand of
3. There are 2，000 boys in this school，and____ them like playing football.
A. five hundred B. five hundreds
C. five hundreds of D. five hundred of
4. The old building was built____ .
A. in 1820s B. in the 1820
C. in the1820s’ D. in the 1820s
5. —What’s the time，please？
—It’s____ .
A. half past nine B. half to nine
C. nine half D. half nine
6. You think your ruler is very long，but his is____ yours.
A. twice as long as B. three as long as
C. twice longer as D. once as longer as
7. It is a pity that one third of the milk____ spilt out of the small pot.
A. is B. are C. were D. come from
8. Half of the sheep____ Australia.
A. are from B. is from
C. comes from D. goes to
9. About____ of the students in the class are girl students.
A. three-fives B. three-fifth
C. three-fifths D. third-fifths
10.____ is eight.
A. Three plus four B. Ten minus two
C. Two multiplied by four D. B and C
Key： 1-5 DADDA 6-10 AAACD
三位数以内基数词的表达法：个位、十位之间用连字符，十位、百位之间用and。 例如：
(2007山东济南市) 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
【解题点拨】 本题考查基数词的表达法。 hundred前面有数词时，即使这个数词大于1，也用hundred，不用hundreds，且百位与十位之间用and连接。故答案为A。
二、考查基数词的用法
1. 表示街道、建筑物、学校的序号时，可用“名词(首字母大写) + 基数词(英语首字母也大写)”，也可用“the + 序数词 + 名词”。例如：
(2007浙江省) —Where is the head teacher？
—Maybe he is in____ .
A. Two Room B. the Two Room
C. Rooms two D. Room Two
【解題点拨】 此题考查基数词表顺序时的特殊用法。基数词一般放在名词之后，且首字母要大写。故答案为D。
2. 表示时间时，整点钟用“基数词 + o’clock”表示，几点过几分用“分钟数 + past + 钟点数”，几点差几分用“分钟数 + to + 下一钟点数”。 例如：
(2007黑龙江哈尔滨市) —It’s 7:45.
—Yes，it’s____ .
A. a quarter past seven B. a quarter to eight
C. fifteen past seven o’clock D. seven fifteen o’clock
【解题点拨】 此题考查时间表达法。表示钟点过半要用“所差的分钟数 + to + 下一个钟点数”。故答案为B。
三、考查基数词的复数形式
ten，hundred，thousand，million，billion等词单独与of短语搭配使用时，可用其复数形式。例如：
(2007安徽芜湖市) —How many people will come to Beijing next year？
—It’s hard to say.____ people，I think.
A. Million of B. Millions of
C. Three millions D. Three millions of
【解题点拨】 句中空白处的数词后面是表示复数意义的名词people，所以该空应该填Millions of。 故答案为B。
四、考查分数的构成形式
分数词的构成方法：分子用基数词，分母用序数词。分子大于1时，表示分母的序数词后面加-s。 另外还要注意下列特殊的表达形式： a half = one second (1/2)，one quarter = one fourth (1/4)，three quarters = three fourths (3/4)。例如：
(2007北京市) About____ of the books in our school library are written in Chinese.
A. four fifth B. four fifths
C. fourth fifths D. fourths fifth
【解题点拨】 此题考查分数的表达法。题中的分子four大于1，表示分母的序数词fifth后面应加“-s”。 故答案为B。
五、考查序数词的构成及用法
1. 序数词前面加定冠词表示“第几个人或物”，而序数词前面加不定冠词，则有“再一、又一”的含义。例如：
(2007四川广元市) —Sandy，our son is 9 years old tomorrow.
—Oh，yes. We should have a party for his____ birthday.
A. nine B. ninth C. the ninth
【解题点拨】 表示“他的9岁生日”，其中的9应该用序数词表示。故答案为B。
(2007浙江衢州市) —Which floor does Mr Hu live on？
—He lives on____ floor.
A. tenth B. the tenth C. ten D. the ten
【解题点拨】 表示“第十层”应该用the tenth floor。 故答案为B。
(2007天津市) Both of the two rulers are broken. I want to buy a____ one.
A. three B. third C. fourth D. ×
【解题点拨】 两把尺子都断了，我还要再买一把。言外之意，“我要买两把尺子之外的第三把尺子”。所以答案为B。
2. 序数词还可以用在形容词最高级前面作修饰语。例如：
(2007山东济南市) He is____ in our class.
A. the fourth tallest B. fourth tallest
C. four tallest D. the four tallest
【解题点拨】 句意为“他在我们班是第四个个子最高的同学”，句中的in our class是比较范围，与之相搭配的应为“the fourth tallest”。 故答案为A。
六、考查与数词有关的词语
1. 基数词可与表示度量单位的词连用。其词序常为“数词 + 量词 + 形容词”。例如：
(2007河南郑州市) The river is more than____ .
A. twenty metre wide B. twenty metres wide
C. twenty metre of wide D. wide of twenty metre
【解题点拨】 表示物体或人体的“宽”、“长”、“深”时，应该用“基数词 + 量词 + 形容词”。基数词超过“1”时，量词为复数形式。故答案为B。
2. other，more置于数词之后，another置于数词之前，都表示“还；再”之意。例如：
(2006山东烟台市) —Do you have enough students to carry the boxes？
—No，I think we need____ .
A. anotherB. two others
C. more two D. two more
【解题点拨】 another后面应接所修饰的名词或代词，others不可位于数词之后，more可位于数词之后。故答案为D。
3. 表示“半个……”，可用 “half a/an + 可数名词单数”。表示“几个半……”，可用“基数词 + and a half + 复数名词”或“基数词 + 可数名词(单、复)数 + and a half”。 例如：
(2007湖北武汉市) Do you want to buy____ pork？
A. half kilo B. half a kilo
C. a kilo half D. a half kilo
【解题点拨】 half a kilo意为“半公斤”。故答案为B。
(2006浙江省) It took me____ to find out the key to the drawer.
A. one and half hours B. one and a half hours
C. one and a half hour D. one and half hour
【解题点拨】 一个半小时的表达方式为one and a half hours或one hour and a half。 故答案为B。
巩固练习：
1.____ people were hurt in the accident.
A. Hundred of B. Hundred
C. Hundreds D. Thousands of
2. About____ men and women are in the square.
A. two thousand B. two thousand of
C. two thousands D. thousand of
3. There are 2，000 boys in this school，and____ them like playing football.
A. five hundred B. five hundreds
C. five hundreds of D. five hundred of
4. The old building was built____ .
A. in 1820s B. in the 1820
C. in the1820s’ D. in the 1820s
5. —What’s the time，please？
—It’s____ .
A. half past nine B. half to nine
C. nine half D. half nine
6. You think your ruler is very long，but his is____ yours.
A. twice as long as B. three as long as
C. twice longer as D. once as longer as
7. It is a pity that one third of the milk____ spilt out of the small pot.
A. is B. are C. were D. come from
8. Half of the sheep____ Australia.
A. are from B. is from
C. comes from D. goes to
9. About____ of the students in the class are girl students.
A. three-fives B. three-fifth
C. three-fifths D. third-fifths
10.____ is eight.
A. Three plus four B. Ten minus two
C. Two multiplied by four D. B and C
Key： 1-5 DADDA 6-10 AAACD