初中英语数词讲解及专项练习

1、数 词一数词含义： 数词分为基数词和序数词。表示数目和数量的词为基数词；表示数目顺序的词为序数词。二基数词基数词1-100 ( 略 )ten / one hundred / one thousand / ten thousand / one hundred thousandone million / ten million/ one hundred million/ one billion123one hundrendand twenty- three1,234 one thusand, two hundredand thirty - four.12,345twelve thousand, t

2、hree hundredand forty- five( 千位与百位之间用逗号 连接 ,百位与十位之间用and 连接 , 十位与个位之间用连字符 - 连接 )three hundred(hundred没有复数 ,不能加 s；hundred前面只能用数字 ,不能用 many和 a few )hundreds of ( hundred如果加 s,后面必须接 of )five thousand(thousand没有复数 ,不能加 s；thousand前面只能用数字 ,不能用 many和 a few )thousands of( thousand如果加 s,后面必须接of)三讲解序数词序数词first

3、sixthsecondsevenththirdeighthfourthninthtenthfiftheleventhtwelfththirteenthfourteenthfifteenthsixteenthnineteenthseventeenth twenty-firsteighteenthtwenty-secondtwentiethseventieththirtieth fortieth eightieth ninetiethfiftiethsixtiethone hundredth四数词的表示法Lesson Three:第三课page four six three:第 463页 page

4、 five o seven:第507页Room three o five:第 305房间： Seventy-six Chang an Stree : 长安街 76号in his fifties:在他 50多岁的时候January twenty-eighthFebruary fourteenthOctober first年代 : 1978: nineteen seventy-eight2008: two thousand and eight2010: two thousand and ten1900: nineteen hundred1908: nineteen and eight / nine

5、teen hundred and eight1960s（ 1960 s） :二十世纪六十年代( in the 1960s / in the 1960 s )钟点 : 8：45eight forty-five / a quarter to nine9：15nine fifteen/ a quarter past nine10： 03ten three /three past ten11： 30eleven thirty / half past eleven小数的读法：1.25 :onepointtwo five3.728 :three point seven twoeight0.56 :(zer

6、o) point five six / (naught) point five six百分数的读法：5: five percent； 20 ： twenty percent；100: one hundred percent0.5: zero point five percent( naught point five percent )分数表示法 :分子用基数词 ,分母用序数词 . 分子大于 1时,分母用复数形式 .1/5 : one fifth；2/5: two fifths；1/4: a quarter /one fourth3/4 : three quarters /three fourt

7、hs；5 1/2 : fiveand a half； 7 2/5 : sevenand two fifths在数学课上，可以这样读分数：1/2： one over two2/3 :two over three3/4 :three over four11/20 :eleven over twenty数词专项训练1 He became a famous writer in his.A. thirtyB.thirtiethC.thirtiesD.thirty s2 - How often do you go to the movies ?-a month.A. twoB. secondC. the

8、secondD. twice3 My office is onfloor.A. twelveB. twelfthC. twelvethD. thetwelfth4 There are more than threepeople in the park.A. hundredB.hundredsC.hundreds ofD.hundred of5 The weight of the moon is only about oneof the earth.A. eightB. eighthC. eightyD. theeighth6 Mr Brown s room ison the third flo

9、or.A. Room309B.309 RoomC.the Room309D.the 309 Room7 China islargest country in the world.A. theB.threeC.thirdD.the third8 There areworkers in this factory.A. five thousand and two hundred and sixty-fiveB. five thousand and two hundred and sixty fiveC. five thousand, two hundred and sixty-fiveD. five

10、 thousands, two hundred and sixty-five9 Tom is aboy.A. 12 year oldB.12 years oldC.12-years-oldD.12-year-old10 Aboutof the students in my class are girls.A. threefifthB.threefifthsC.thirdfiveD.thirdfives11 There is not enough room for us.A. fourB.the fourC.fourthD.the fourth12 Ten yearsa long time.A. wereB. isC. areD. be13 I was exhausted afterwalk.A. six hoursB. six hour sC. six hoursD. six hour14 Coca Cola started to enter China s m