小學(xué)英語數(shù)詞及專項(xiàng)訓(xùn)練

1、小學(xué)英語數(shù)詞及專項(xiàng)訓(xùn)練一、數(shù)詞的分類：基數(shù)詞和序數(shù)詞?；鶖?shù)用于表示數(shù)量多少，而基數(shù)詞用于表示次序，常在日期中出現(xiàn)。區(qū)別：基數(shù)詞前面沒有“the”；序數(shù)詞前一定要有“the”。1、超過二十以上的兩位數(shù)需要在個(gè)位和十位之間加上。如：21 twenty-one2、用基數(shù)詞來修飾可數(shù)名詞時(shí)., 一定別忘了它的復(fù)數(shù)形式。如：十八個(gè)男孩eighteen boys3、用基數(shù)詞修飾不可數(shù)名詞時(shí).，如是復(fù)數(shù)，變它的量詞為復(fù)數(shù)。如：兩碗米飯two bowls of rice4、序數(shù)詞一般加“th”，特殊的有:first, second, third, fifth, eighth, ninth, twelfth；

2、二十及二十以外的整十：twentieth, thirtieth, fortieth.“第幾十幾”：前面整十不變,后面“兒”改為序數(shù)詞。如:88 eighty-eighth 巧記基數(shù)詞和序數(shù)詞：1,2,3,特殊記，加th從4起;8少t,9去e,逢5逢12ve變f;2090,y要變ie;若是兒十兒，前基后序別倒位.二、數(shù)詞的表示方法:基數(shù)詞序數(shù)詞對(duì)照表1onefirst1th2twosecond2nd3threethird<3rd4fourfourth4th5fivefifth15th6sixsixth6th7sevenseventh7th8eighteighth8th9nineninth9

3、th10tententh10th11eleveneleventh/11th12twelvetwelfth12th13thirteenthirteenth13th14fourteenfourteenth14th15fifteenfifteenth15th16sixteensixteenth16th17seventeenseventeenth)17th18eighteeneighteenth18th19nineteennineteenth)19th20twentytwentieth20th21twenty-onetwenty-first21st22twenty-twotwenty-second22

4、nd23twenty-threetwenty-third23rd24twenty-fourtwenty-fourth24th25twenty-fivetwenty-fifth25th26twenty-sixtwenty-sixth26th27twenty-seventwenty-seventh27th28twenty-eighttwenty-eighth28th29twenty-ninetwenty-ninth)29th30thirtythirtieth30th40fortyfortieth40th50fiftyfiftieth50th60sixtysixtieth(60th70seventy

5、seventieth70th80eightyeightieth80th90ninetyninetieth90th100th100one hundredone hundredth三、數(shù)詞的用法1 .章節(jié)、頁數(shù)的讀法第一章：the first chapter; Chapter One第二節(jié)：the second section ; Section Two第三課：the third lesson ; Lesson Three第 463 頁：page four six three第 2564 頁：page two five six four 或 twenty-five sixty-four注意：如果頁

6、碼的數(shù)字較長(zhǎng)，通常用基數(shù)詞。2 .房間、門牌、電話號(hào)碼的讀法第 305 房間：Room three o （零）five長(zhǎng)安街 76 號(hào)：seventy-six Chang*an Street電話號(hào)碼：204-2244： telephone number two o （零）four two two （double two） four four十一路公共汽車：Bus （No.） eleven3 .年代、日期、時(shí)刻的讀法（1）年份是四位數(shù)字時(shí)，各分成二位來讀，eg.公元 1995 年：1995 （=nineteen ninety-five）（2）日期使用一般的序數(shù)詞來讀取eg. 5 月 10 日:M

7、ay 10th （=May tenth）（3）時(shí)刻通常用基數(shù)詞來讀eg. 8 點(diǎn) 45 分：8: 45 （=eight forty-five）（4）年代表示法：eg.二十世紀(jì)九十年代：1990's nineteen nineties4. hundred, thousand, million 用法：hundred, thousand, million前面有具體數(shù)字,要用單數(shù)形式,但如果它們后面有of,那它們要用復(fù)數(shù)形式,同時(shí),前 面不能再加具體的數(shù)目。eg. two thousand 兩千 thousands of 成千上萬hundreds of成百上千millions of數(shù)以百萬計(jì)T

8、housands and thousands of people have visited the city.成千上萬的人參觀了這座城市。四、倍數(shù)、分?jǐn)?shù)、小數(shù)、百分?jǐn)?shù)的表示方法：1 .倍數(shù):time （s）This room is three times as large as that one.這個(gè)房間有那個(gè)房間三個(gè)大。Three threes are nine, or Three times three is nine. 三三得九o2 .分?jǐn)?shù)：分子用基數(shù)詞表示，分母用序數(shù)詞表示，分子為2以上時(shí)，分母（序數(shù)詞）應(yīng)變?yōu)閺?fù)數(shù)。三分之一，one third, a third；五分之三，three

9、fifths數(shù)短語作主語時(shí)，謂語的數(shù)由of后面的名詞來決定，名詞為可數(shù)名詞復(fù)數(shù)，則謂語用復(fù)數(shù)；名詞為不可數(shù)名詞,謂語用單數(shù)。A third of the land is covered by forests. Two thirds of the workers are working hard.3 .小數(shù):小數(shù)點(diǎn)前的基數(shù)詞與前面所講的基數(shù)詞讀法完全相同，小數(shù)點(diǎn)后面則須將數(shù)字一一讀出。讀作 one point two five讀作 naught point five six 或 zero point five six4 .百分?jǐn)?shù)：白分號(hào)讀作percent eg. 5%讀作five percent

10、 五、算式表達(dá)法：1 .加法A+B=C f A plus B is C. or A and B is C.2 .減法A B=C -A minus B is C. or B from A is C.3 .乘法AX B=C f A times B is C. or A multiplied by B is C.4 .除法A-r B=C f A divided by B is C.六、需注意的問題：1 .數(shù)詞+名詞用“一”連在一起作定語，后面名詞不用復(fù)數(shù)。eg. a four-year-old boy2 .有些結(jié)構(gòu)既有基數(shù)詞乂有序數(shù)詞。eg. the first three questionsthe

11、 last five minutes3 .英語中有一些短語包含數(shù)詞，不能從表面上理解它們的意義egone and the only 唯一 be at one with 與 一致be on all fours 匍匐;趴Two's company, three is a crowd 二人成伴，三人不歡one and the same同一個(gè)；完全一樣for one舉個(gè)例子說ten to one 十之八九 a thousand to one 十之八九talk nineteen to the dozen 滔滔不絕 by twos and threes 三三兩兩 in ones and twos

12、三三兩兩 first and last 總共first of all 首先 from the first 從一開始練習(xí)：一、漢譯英1、十二個(gè)家庭 2、在上午九點(diǎn)3、在下午4:30 4、在七月 5、第三個(gè)孩子 6、第一課7、六月一日9、十二個(gè)月11、四分之一8、三點(diǎn)零五10、三十九美元12、五分之二二、單項(xiàng)選擇tree is tall.A. fourteen footsB. fourteen feetC. fourteen foot plusA. fourty is ninetyC. thirty is ninetyD. forty footB. forty is ninetyD. fifty

13、is ninetyare students in this school.A. four hundred fifty-two B. four hundreds fifty twoC. four hundred and fifty-twoD. four hundreds and fifty-two home is about away from the school.A. three hundred metre B. three hundreds metresC. three hundred metres D. three hundred metre is and last month in a

14、 year.twelveth twelfth6.of the teachers in the school are from colleges.quartersfifthwere two world wars during century.twenties twentieththe forties, his father served in the New Army（新四軍），while his mother worked in theRoute Army（八路軍）.A. Fourth; Eighth ; Eighth;eight ; eighth are learning now.twent

15、y-first lesson Twenty-first21 th lesson 21 st will stay here for.and half month> and a half month months and a half and a half months11 .What' s the date todayIt' s. 5:0012 .Would you like to eat applesNo, thank you. two more another else said he would come back in. or two days or two day

16、s and two days day and two 14.How often do you write to your parents abroada month times a monthsecond time a month a time a month15 .people died in the traffic accidents in the world, of of thousands of thousand ofthe 1850s, about was covered by forest in the USA.third third thirdsis herbirthday, I think.twentieth twenty* sis Teachers' Day.ten tenth ten' sarechildren in the country school.thousand five hundred and six