高中英语语法专练-数词

第四章 数词表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。一、基数词1）基数词写法和读法： 345three hundred and forty-five；2）基数词一般是单数形式，但下列情况，常用复数： a. 与of 短语连用，表示概数，不能与具体数目连 用，如scores of people 指许多人； b.在一些表示一排或一组的词组里； 如：They arrived in twos and threes.他们三三两两的到达了。 c. 表示几十岁； d. 表示年代，用 in +the +数词复数； e. 在乘法运算的一种表示法里，如：3 x 5 = 15 Three fives is (are) fifteen.二、序数词序数词的缩写形式： first-1stsecond-2ndthirty-first-31st三、 数词的用法1）倍数表示法 a. 主语+谓语+倍数（或分数）+ as + adj. + as I have three times as many as you.我有你三倍那么多。 b. 主语+谓语+倍数（分数）+ the size (amount，length) of The earth is 49 times the size of the moon.地球是月球的49倍。 c. 主语+谓语+倍数（分数）+ 形容词（副词）比较级+ than The grain output is 8 percent higher this year than that of last year. 今年比去年粮食产量增加8%。 d. 还可以用by+倍数，表示增加多少倍 The production of grain has been increased by four times this year. 今年粮食产量增加了4倍。2）分数表示法构成：基数词代表分子，序数词代表分母。分子大于1时，分子的序数词用单数，分母序数词用复数： 1/3 one-third ； 3/37 three and three-sevenths.数 词( )1.In this school, classes begin at _ in the morning. A. half past seven B. thirty seven C. half over seven D. seven and a half( )2.May is _ month of the year. A. five B. the five C. fifth D. the fifth( )3.In Asia _ were hunted and killed during the past fifty years.A. nine tigers in ten B. nine tigers of ten C. ninth tiger in ten D. nine tigers in tenth ( )4.The Winter Olympics are held _. A. every four year B. every fourth year C. every fourth years D. every four years( )5.Before the Civil war, _ were forced to work on the farms in the Southern States. A. ten thousand of slaves B. ten of thousands of slaves C. ten thousands of slaves. D. tens of thousands of slaves( )6.The lecture is likely to last _ , so Ill be back at 9:00 pm. A. one and a half an hour B. an hour and a half C. an hour and half an hour D. half and an hour ( )7.Mrs. Green is already in _ , but she still studies law at a college . A. her fiftys B. his fifties C. the fifty D. her fifties ( )8._ of the earth _ made up of oceans. A. Two-third, is B. Two-thirds, is C. Two-third, are D. Two-thirds, are ( )9.Since 1964, _ satellites have been put into space. A. dozens of B. four dozens C. dozen of D. several dozens( )10.The Chinese have been making paper for over _ years. A. two thousand B. two thousands of C. two thousand of D. two thousands ( )11.The old fisherman cast the net _ , but still caught no fish.A. the third time B. a third time C. three time D. the third times ( )12.It will take _ to finish the work, I think . A. one and a half hours time B. an hour and a half of time C. one and a half hours time D. an hour and a half time ( )13.There are _ students in our class, _ of whom are girls. A. forty-five, four-nineths B. forty-five, four-ninth C. fourty- five, four-ninths. D. forty-five, four-ninths ( )14.I have heard such stories _. A. a hundred of times B. hundreds of times C. a hundred time D. two hundreds times ( )15.About _ of the earth is sea. A. three-fourths B. three-forths C. thirds-fours D. third-fours ( )16.He is a student of _. A. Class First B. the Class One C. Class One D. First Class( )17. Whats the date today ? Its _. A. Friday B. 8 March C. March 8 D. the March 8th ( )18.The weight of the moon is only about _ of that of the earth . A. one eighty B. first eighty C. one the eightieth D. one eightieth( )19.We should remember that _ people are still very poor. A. hundreds of B. hundred of C. hundreds D. million ( )20.Were going to learn _ next time . A. Nine Lesson B. lesson Ninth C. the Nineth lesson D. Lesson Nine ( ) 21.The meeting will be held in _ . A. Room 201 B. 201 Room C. the Room 201 D. the 201 Room ( )22. What time is it by your watch ? Its _. A. six half B. thirty to seven C. six thirty D. half to seven ( )23.He is only an _ boy. A. eight years old B. eight-years-old C. eight-year-old D. eight year old ( )24.His room is on _ floor . A. the three B. third C. a third D. the third ( )25.The road is _ . A. two metres long B. second metres long C. two metres wide D. two metres deep ( )26.When did _ break out ? A. World War I B. First World War C. the World War I D. World War First ( )27.Why not try to do it _ ? A. second time B. a second time C. two time D. the second time ( )28.By the end of last week, we had learned _. A. nine lessons B. lesson ninth C. ninth lesson D. nine lesson ( )29.My father works in _ Peoples Hospital. A. the two B. the No.2 C. No. the second D. the No.2nd( )30.Those books are for _. A. we three B. three us C. three we D. us three ( )31.What date is it ? Its _. A. May the one B. the May first C. May the first D. of May the first ( )32.There are about two _ people on the playground. A. thousand B. thousands C. thousands of D. thousand of ( )33.It happened _. A. in the 1990 B. in the 1990s C. of 1990s D. of the 1990s ( )34.Ill finish my homework in _. A. one minute or two B. a or two minutes C. a minute or two D. one and two minute( )35.How often do you go home ? _A. Twice a month B. A twice month C. A month twice D. Two a month ( )36.438 is _. A. four hundreds and thirty eight B. four hundred and thirty eight C. four hundreds thirty eight. D. four hundred thirty eight ( )37.Abraham Lincoln was murdered _. A. on April 14, 1865 B. in April 14,1865 C. at 14 April, 1865 D. in 14 April,1865( )38.He bought a _ car at a low price yesterday. A. two hands B. twice hand C. second-hand D. second hand ( )39.4/6 is read _. A. fourths six B. four sixth C. four sixths D. fourth sixes ( )40.The time is 9:40, its _ A. twenty to ten B. forty to time C. nine to forty D. forty past nine ( )41.Therere 30 girls in our class. _ are from the country. A. Three they B. The three of them C. Three of them D. All three of them ( )42.Whats the time? Its _ . A. Monday B. four C. New Years Day D. May 4( )43.What day is it today ? Its _. A. Oct. 21 B. Monday C. fine D. three oclock( )44.The Yangtze River is _ longest river in the world. A. No. three B. three C. the third D. third ( )45.This room is _ that one. A. four times as larger as B. four times the size of C. four times large D. four time as large as ( )46.The lost of machine was reduced by _. A. 30 percent B. 30th percent C. percent 30 D. percent 30th( )47.Eve