【第一篇：基數(shù)詞變序數(shù)詞口訣】
基數(shù)詞變序數(shù)詞(之一)
基變序，有規(guī)律，
詞尾字母th。①
八減t，九減e，
f要把ve替。②ty把y變成i，
記住th前有個e。③
�、侔矗褐竑irst、second、third。
②按：指eight去掉t，nine去掉e，five和twelve去掉ve加上f。
�、甙矗褐竧wenty→twentieth等。
基數(shù)詞變序數(shù)詞(之二)
第一、二、三要全變，①
其余“th”加后邊，⑧“th”里有例外，
你需格外記明白：
八減t，九減e，②
字母f代ve，④ty變tie。⑥
�、賝ne——first，two——second，three——third。
②four-fourth，seven-seventh，hundred-hundredth。
�、踖ight——eighth，nine—ninth。
④five—fifth，twelve—twelfth。
�、輙wenty—twentieth，sixty——sixtieth。
直接引語間接引語的記憶口訣、定語從句記憶口訣、被動語態(tài)的口訣
人稱變更怎么辦? “一主①、二賓②、三不變”③
若是自引自的話， 聽者不變稱不變。
注：①“一主”指在直接引語中的第一人稱變?yōu)殚g接引語時，要和主句中的主語在人稱上保持一致。如：
He sad，“I am forty，”→He said that he was forty.
�、凇岸e”指直接引語中的第二人稱變?yōu)殚g接引語時，要和主句中的間接賓語保持人稱一致。如：
He said，“Are you coming tomorrow?”→He asked me if I wascoming the next day.
�、邸叭蛔儭敝钢苯右Z中的第三人稱變?yōu)殚g接引語時，人稱不變。如：
He said，“Is she an English teacher?”→He asked if she was an English teacher.
另外注意直接引語為復數(shù)，引述者主語為單數(shù)，間接引語主語相應變復數(shù)。如：
He said，“Are you interested in English?”→He asked me/us if Iwas/we were interested in English.
一般現(xiàn)、過用be done，be有人稱、時、數(shù)變。
完成時態(tài)have done，被動將been加中間。
一般將來shall (will) do，被動變do為be done。
將來進行無被動，shall (will) be doing,
現(xiàn)在完成進行同，have (has) been doing。
現(xiàn)、過進行be doing, 被動be加being done。
情、助、有、是妥安排，一律隨新主語變。
否定助后加not，疑問一助置主前。
主語恰是疑問詞，直陳語序主在前。
一般情助加be done，雙賓多將間賓變。
復合賓語賓變主，賓補、主補相應變。
【第二篇：數(shù)詞的分類及表示】
一 數(shù)詞的種類 數(shù)詞分基數(shù)詞和序數(shù)詞
基數(shù)詞是表示自然數(shù)列的詞, 例如; one , two ,three,four.....
序數(shù)詞是表示先后順序的詞, 例如: first, second ,third,fourth...
二 基數(shù)詞和序數(shù)詞的表示法
1.基數(shù)詞單詞的拼寫：1~12為單詞，13~19都以后綴-teen結(jié)尾，20至90這樣的整十數(shù)都以后綴-ty結(jié)尾，其他基數(shù)詞中間加連字符號“-”再按照上述的變化進行。
例：21→twenty-one 56-- fifty-six 85→eighty-five
三位數(shù)的構(gòu)成為：幾+百+and+末兩位(或末一位)數(shù)
例：132→one hundred and thirty-two
205→two hundred and five
千以上的數(shù)字的讀法：從后面往前，每三位數(shù)作為一個單位，分別為thousand, million.
32, 548, 652, 讀作：thirty two million, five hundred and forty eight thousand, six hundredand fifty two
2. 序數(shù)詞=基數(shù)詞+th (1、2、3為 first, second, third)。但以下幾種情況要注意：
1) fifth (第五)，eighth (第八)，ninth (第九)，twelfth (第十二)
2) 以ty結(jié)尾的基數(shù)詞變詞尾為tieth
例：twenty→twentieth, ninety→ninetieth
3)復合序數(shù)詞只需要將相應基數(shù)詞中最后一位變成序數(shù)詞，其余不變。
例：第二十一→twenty-first
第二百四十五→two hundred and forty-fifth
【第三篇：基數(shù)詞、序數(shù)詞的用法】
三 基數(shù)詞、序數(shù)詞的用法
1. hundred, thousand, million 與數(shù)字連用，表示一定量的具體數(shù)字，不用復數(shù)，但表示不定概念可用復數(shù)
例：three hundred people, millions of people
2. 基數(shù)詞表示時刻。
例：7點 seven o‘clock, 7:20 seven twenty
3. 給某些事物編號
例：Lesson One=the first lesson
Bus No. 2 7月1日=July I (July Ist)
1996年6月3日=June 3, 1996=June the third, nineteen ninety-six
4. 有關分數(shù)表示法。分子是基數(shù)詞，分母是序數(shù)詞。當分子大于1時，分母就用復數(shù)。
例：I’ve read one-fifth of the books.
I‘ve finished three-fifths of the words.
5. 有關倍數(shù)表示法
兩倍用twice, 三倍以上用數(shù)詞+times, 要注意倍數(shù)在句子的位置。
例：The door is three times the size of this.
6. 十位數(shù)字(個位為零)的基數(shù)詞以復數(shù)形式出現(xiàn)時，表示年代、年齡
例：She is a good-looking woman in her forties. (forties 指40-49歲之間)
【第四篇：數(shù)詞練習題及解析】
四. 數(shù)詞實練習題解析：
1. The English for 10,440 is .
A. ten thousand , four hundreds and forty
B. ten thousand, four hundred and forty
C. ten thousands, four hundred and forty
D. ten thousand and four hundred, forty
本題在于掌握千以上數(shù)字的讀法，在千、百前面有數(shù)字，不加復數(shù);百位、十位中間加and ，每三位為一組，再加相應的單位即可，故選B
2. of the workers in the factory is about two hundred, of them are women workers.
A. The number, first-third B. The number, one-third C. A number, half D. A number, threequarters
分數(shù)表達法前文闡述已經(jīng)很多，應表示為one-third. 要區(qū)分the number of 與a number of , thenumber of 指“......的數(shù)量” ，謂語動詞用單數(shù);
a number of 意為“許多”，謂語動詞為復數(shù)。故選B
3. --- Can you write the number eighty-five thousand , six hundred and twenty-six?
--- Yes, it is .
A. 85662 B. 85626 C. 85006 D. 85000
千以上的數(shù)字，從后往前三個數(shù)為一個單位，即從85之后順次寫出三個數(shù)即可，即626，連在一起即為85626。故選B.
4. About of the books in our school library arewritten in Chinese.
A. fouth-fifths B. four - fifth C. four -fifthsD.fourths-fifth
本題考查分數(shù)的表達法，分子用基數(shù)詞，分母用序數(shù)詞，當分子大于1，
分母用復數(shù)，因此它的表達法為four-fifths,故選C。
5. The road is over meters long.
A. six hundred and fifty-two B. six hundreds and fifty two
C. six hundred, fifty -two D. six hundred, fifty and two
百、千、百萬等詞與數(shù)字連用不用復數(shù)，因此不加s。其次表示百位數(shù)時要在百位和十位之間(無十位，則在百位和個位之間)加and ，再次在個位與十位之間要有連字符“-”，故本題選A
6. January is New Year’s Day.
A. one B. two C. the first D. the second
某月的幾號要用序數(shù)詞表示，讀時序數(shù)詞前要加the 。故選C
7. Take the turning on your night.
A. nine B. ninth C. nineteen D.nineth
根據(jù)題意判斷本題考第幾個轉(zhuǎn)彎處需用序數(shù)詞，拼寫正確的只有B
【第五篇：數(shù)詞專項練習及答案】
五.專項練習
1. There are days in a week.
A. the seven B. seventh C. the seventh D. seven
2. I think that the century (世紀) will bring us more hopes.
A. twenty-one B. twentieth-first C. twenty-first D. twentieth-one
3. -- How many students are there in your school?
-- the students in our school over two thousand.
A. The number of ; is B. The number of ; are C. A number of ; is D. A number of ; are
4. The new student is in .
A. Class 2 B. Class Second C. 2 Class D. class 2
5. --How many teachers are there in yourschool?
-- ,but I‘m not sure.
A. Hundreds B. Hundred C. Hundreds of D. Onehundred
6. of the teachers in our school is about onehundred, and of them are women teachers.
A. The number, two-thirds B. The number, two-thid
C. A number, half D. A number, three-quarters
7. --- Dad , when will you be free? You agreed to go to the seaside with me four days ago.
--- I am sorry, Jean. But I think I will have a holiday soon.
A. four-days B. four-day C. four days D. four day
8. Fan Zhiyi’s transfer to Dundee Football Club at the end of last year aroused (激起)Chinese people‘s interest.
A. thousand of B. thousand C. thousands of D. thousands
9. This story happened on .
A. 1989, Oct 21st B. Oct. 21st ,1989 C. 21 Oct, ber , 1989 D. 21st of Octber, 1989
10. “Seven five” can be written .
A. five sevens B. five to seven C. seven fives D. five past seven
答案：
1-5 D C A A D 6-10 A B C B D
