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1、专题四数词学前自测（发现考点）( )1. _ people are sending and receiving text messages.A. Million of B. Several million ofC. Millions of D. Several millions( )2. Before the new year, _ people went to visit the flower market.A. thousands of B. 8 thousands ofC. 8 thousand of D. thousand of( )3. Its my daughters birthd
2、ay today. Shes _ years old.A. eighteen B. eighteenthC. the eighteen D. the eighteenth( )4. Is it far from your home to school? Not very far, only _.A. 15 minutes rides B. 15 minutes rideC. 15 minutes ride D. 15 minutes rides( )5. Time isnt enough for me. Can you give me _?A. two another minutes B. m
3、ore two minutesC. another minutes two D. another two minutes( )6. Each year _ sharks are killed worldwide for their fins(鱼鳍).A. million of B. millions ofC. many millions D. four millions( )7. Its about _ walk from my home.A. ten minute B. ten minutesC. ten minutes D. ten-minutes( )8. The old man has
4、 _ sons. Deal is the _ one.A. three; two B. three; second C. third; two D. third; second( )9. This classroom is _ ours.A. three times big as B. as three times big asC. three times as big as D. as big three times as( )10. The basketball team of our school ranks _ in the match.A. three B. third C. the
5、 three D. the third常考考点知识清单（研习考点）考点一 基数词的用法及读法1. 基数词的构成及读法基数词构成及读法例词1 121 12 的基数词为特定的独立单词one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve13 1913 19 的基数词皆以-teen 结尾,单词中的两个音节都读重音thirteen, fourteen, fifteen, sixteen, seventeen, eighteen, nineteen20 9020 为 twenty。 30 90 之间的整十基数词皆
6、以-ty 结尾,第一个音节重读twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety注意:1. 21 99 之间的各非整十数词须在十位与个位之间加连字符“-”。 如:32 thirty-two2. 读数字时,百位和十位之间、百位和个位之间加 and。 如:134 one hundred and thirty-four; 106 one hundred and six英语中的“万”“亿”英语中的“万”用十千表示,“亿”用百个百万来表示forty thousand 四万;two hundred million 两亿其他数词1000
7、以上的数字,从后向前数,每三位加“,”。 第一个“,”前为 thousand,第二个“,”前为 mil-lion,第三个“,”前为 one billion 或 one thousand million。 每一节从左到右按百、十、个的顺序表示。如:243, 621, 304, 782 读作:two hundred and forty-three billion, six hundred and twenty-one mil-lion, three hundred and four thousand, seven hundred and eighty-two其他数词注意:hundred, thou
8、sand, million, billion 表示确定的数目时不用复数形式。 后面跟名词时,名词需用复数形式;如果这四个基数词后面跟 of 表示概数,则此四个基数词必须用复数形式。 如:thousands of 成千的巧记: hundred, thousand 和 million 等,有时含糊有时清;清时两无(无 s 和 of),含糊时两有(有 s 和 of)。2. 基数词的用法(1) 基数词在句中可用作主语、宾语、表语和定语。Twenty of them are Young Pioneers. 他们当中有二十个是少先队员。(2) 用于名词之后表示顺序编号。Please open your b
9、ooks and turn to Page 28. 请打开书翻到第 28 页。(3) 基数词可表示年份、时间(钟点)、电话号码、年龄等。I was born on July 12, 1989. 我出生在 1989 年 7 月 12 日。(4) 表示“世纪年代”,用“in + the +基数词复数”。in the 1990s 在 20 世纪 90 年代(5) in ones+整十的基数词复数表示“在某人多岁时”。The old woman is in her nineties. 这位老太太九十多岁了。(6) “数词+连字符+单数名词”或“数词+连字符+单数名词+连字符+形容词”构成复合形容词作定
10、语。We have a seven-day holiday in October. 在 10 月我们有一个 7 天的假期。She is an eight-year-old Chinese girl. 她是一个 8 岁的中国女孩。考点二 序数词的构成及用法1. 序数词的构成及读法范围特点例词1 3特殊记first, second, third4 19 在大多数基数词末尾直接加-th fourth, seventeenth八去 t,九减 e, f 来把 ve 替eighth, ninth, fifth, twelfth20 90 把基数词后面的 y 变为 i 再加-ethtwentieth, ni
11、netieth21 以上的多位数个位数用序数词,其余用基数词twenty-first, one hundred and sixty-eighth巧记: 基数词变序数词的口诀 基变序,有规律,一、二、三特殊记,结尾各是 t, d, d,八去 t,九减 e, f 来把 ve 替,整十变 y 为 ie,若是见到几十几,只变个位就可以,排列顺序不费力,连字符号莫丢弃。 巧学妙记加努力,hundred 是你的好成绩!2. 序数词的用法(1) 序数词在句中可用作定语、主语、宾语和表语,前面要加定冠词 the。The first is always better than the second. 第一总是比
12、第二好。She will choose the third. 她将选择第三个。(2) 序数词前面可以用形容词性物主代词或名词所有格修饰,此时序数词前面不加定冠词 the。This is my third time to Shanghai. 这是我第三次去上海。(3) 不定冠词 a/ an 与序数词连用,表示“又一;再一”。I have been to Beijing twice, but I would like to go there a third time. 我去过北京两次,但是我想再去一次那里。巩固训练（夯实基础）一、单项选择( )1. _ trees were cut down. A
13、nd many birds lost their home. I am sorry to hear that.A. Two thousands B. Thousands of C. Thousand of D. Two thousand of( )2. Mr Zhang asked me _ question before I could answer _.A. the second; the first B. a second; a firstC. a second; the first D. the second; a first( )3. Is there _ today? Yes, a
14、 _ boy was killed by an accident today.A. anything new; ten-year-old B. new anything; ten years oldC. anything new; ten years old D. new anything; ten-year-old( )4. Can you read “1245”? Yes. Its _.A. one thousand and two hundred and forty five B. one thousand, two hundred and forty-fiveC. one thousa
15、nd, two hundred and forty five D. one thousand, two hundreds and forty-five( )5. There are thirty students in our class. And _ of them are boys.A. two third B. second thirdC. two thirds D. second threes( )6. You have failed three times. But I would like _ .A. four time B. four times C. a fourth time
16、 D. a four times( )7. Mary, what is three times three? Its _.A. six B. sixth C. nine D. ninth( )8. Can I book a room now? Of course. _ is available now.A. The 405 Room B. 405 Room C. The Room 405 D. Room 405( )9. Do you know when is National Day? Its on _.A. first the October B. October the first C.
17、 one of October D. October of the first( )10. What do you know about the letter? It was written in _.A. 1480s B. 1480s C. the 1480s D. the 1480二、用所给单词的正确形式填空1. Fathers Day is on the _ (three) Sunday in June every year.2. I go to the gym _ (one) a week.3. Today is my _ (twenty) birthday.4. There are
18、_ (fiftieth) people in the playground.5. We have meals three _ (time) a day.6. My eldest brother wrote his first poem in his _ (thirty).7. _ (Thousand) of people became homeless because of the earthquake.8. Three _ (hundred) children took part in the activity.9. I would like to have a _ (two) banana though I have had one.10. Its September the _ (nine) today.答案：学前自测1-5 CAABD6-10 BBBCD巩固训练1-5 BCABC 6-10 CCDBC1. third2. once3. twentieth4. fifty5. times6. thirties7. Thousands8. hundred9. second10. ninth