【正文】 “又一 ”的意思。 例如：Mr Brown has a second car. 布朗先生另外還有一輛車。He has tried a second time. 他又嘗試了一次。三、數(shù)詞的應用 1．時刻的表示：小時、點鐘、分鐘、秒鐘要用基數(shù)詞。 ①“幾點鐘”用基數(shù)詞加o39。clock。o39。clock可省略。如： 5點鐘—five（o39。clock）． ②“幾點過幾分 ”，≤30分鐘”用介詞past。如： 7：05—five past seven；7：15—fifteen （a quarter）past seven；7：30—half past seven。 ③“差幾分幾點”用介詞“to”。如：7：40—twenty to eight；7：45—fifteen（a quarter to eight。 ④日常生活中的時間讀法常常簡化，直接按基數(shù)詞的順序讀。如：7：05—seven o five；7：15— seven fifteen。 2．年月日的表示：① 年份用基數(shù)詞，如：1999年—nineteen ninetynine； 1900年—nineteen hundred； 2000—two thousand；1905—nineteen o five；② 年用基數(shù)詞，日用序數(shù)詞。如：1998年6月8日 寫作：June 8，1998；讀作：June the eighth， nineteen ninetyeight或the eighth of June， nineteen ninetyeight。3. 世紀、年代表示法： （在）90年代 (in) the nineties （在）19世紀 (in) the nineteenth century （在）18世紀30年代 (in) 1730s或1730’s4．編號的表示：① Lesson One ＝the first lesson第一課；② Bus No．3＝the No．3bus 3路公共汽車；③ 表示住所時不用“No．”如：302房間—Room 302（讀作：room three o two）；④ 如果編號的數(shù)詞比較長，一般用基數(shù)詞。如：Page 457第457頁；⑤ 電話號碼，用基數(shù)詞,如：3855633—three eight five five（double five） six three three（double three）。 5．分數(shù)的表達：分子用基數(shù)詞，分母用序數(shù)詞，分子大于“1”，分母則加“s”。如：1／3 one third，2／3two thirds； 另外：1／2 a（one）half。 1／4one fourth或a（one）quarter。3／4threefourths或three quarters。 half a second。 a quarter of a second四分之一秒 6. 表示有小數(shù)的詞用基數(shù)詞。 　　　　　　　　　　　　　　　　　　　　　 　　 five point five 　　　　　　　　　　　　　　　　　　　　 twelve point one three five 7．表示百分數(shù)5℅：five percent (per cent)， ℅ zero point eight percent (per cent).8．表示有小數(shù)的詞用基數(shù)詞。 　　　　　　　　　　　　　　　　　　　　　 　　 five point five 　　　　　　　　　　　　　　　　　　　　 　　 twelve point one three five 　　　　　　　　　　　　　　　　　　9．其他用法：1）基數(shù)詞＋單數(shù)名詞＋形容詞構成合成形容詞。如：一個五歲的男孩a fiveyearold boy； 一座800米長的橋an 800metrelong bridge；女子400米接力girls39。400metre relay race。2）具體數(shù)詞＋metre（s）／kilometre（s）／kilo（s）long ／ high ／tall ／deep ／away等。如：長江長6300公里。The Changjiang River is 6，300 kilometres long． 3）表示幾十歲用序數(shù)詞，eg. 在他三十幾歲時 in his thirties4）倍數(shù)的表達：(一倍用once，兩倍用 twice，兩倍以上用基數(shù)詞＋times。如：5倍five times)。 例如：He is as tall a boy as I. He is a head taller than I . He is two years older than IChina is four times as large as Europe.I am twice as old as you. (=I am twice older than you. /I am twice the age of you.)My books are twice as many as yours.China is four times larger than Europe.(=China is four times the size of Europe.)I pay twice as much as it was worth.I pay twice as much for the house. 例題解析：舉一反三，學的更輕松！ 1. _______ Chinese are looking for ways to learn English well before Beijing 2008 Olympic. A. Thousand B. Thousands C. Thousand of D. Thousands of 2. Both of the rules are broken. I want to buy a ______ one. A. three B. third C. forth D. /3). Which is the smallest number of the four? _________. A. Two thirds B. A half C. A quarter D. Threefourths4). Please write down the new words in the text of _______. A. Lesson Eleven B. the Lesson Eleven C. Lesson Eleventh解析：, thousand, million, billion 等前有具體數(shù)字時，它們后面不能加s,若這些詞后面有介詞of (幾百，成百上千) ，thousands of (幾千，數(shù)千個)，millions of, billions of 前不可用數(shù)詞修飾。但可用many, some, several 等修飾。故選答案D. 2．答案： B。此題主要考查序數(shù)詞的運用。 3．答案：C。此題主要考查英語中的分數(shù)表示法。英語中表示分數(shù)時，分母用序數(shù)詞，分子用基數(shù)詞，當分子大于1時，表示分母的序數(shù)詞后要加s. 4．答案： A。 此題主要考查基數(shù)詞的編號。在通常情況下，名詞編號有這幾種表示法： 1。事物名詞+基數(shù)詞，且每個單詞的首字母都要大寫。如：Lesson Eleven；2。定冠詞+基數(shù)詞+事物名詞。如： No. 6 Middle School練習與鞏固：熟能生巧，取得好成績！選擇填空：1. _______ of people in the world are sending information by Email ever day. A. Many million B. Several million C. Several millions D. Many millions2. About _______ of the surface of the earth _______ covered with water. A. three quarter, is B. three quarters, has C. three quarters, is D. three quarter, are 3. It will take _______ time to finish the work. A. one and a half years’ B. a year and half C. one and a half year’s D. a year and half’s4． How long will your stay here ?、 For ________ . A. one and two day’s B. one and two day C. a day or two D. one or two day5．When he moved to Germany in ______ , he was already in _______ . A. the fifties。 his sixties B. fifties。 his sixties C. the fifties。 his sixty D. fifty。 sixty6．My brother lives in ______ on ______ floor. A. six Room 。second B. Room six 。the second C. Room six。 two floor D. the room six 。 the second7．December is _______ month of the year. A. twelve B. twelfth C. the twelfth D. the twelve8．This took place in the ______ . A. 1940 B. 1940s C. 1940es D. 1940th 9．It is only _____ from my home to the train station. A. ten minutes walk B. tenminutes walk C. ten minutes ‘s walk D. ten minutes’ walk10．There are ______ in this building , I live on ______.A. nine floors ,the ninth floor B. nine floor, the ninth floorC. nine floor , nine floors floor,the ninth floor 11．The water behind the Three Gorges Dams (三峽大壩) should be ______ higher than downstream（ 下游）。 A. sixtyfive meter B. sixtyfifth meter C. sixtyfive meters D. sixtyfifth meters12. There are _______ days in a year. A. three hundred sixtyfive B. three hundred and sixtyfive C. three hundred and sixty –five D. two hundreds and sixtyfive13. How many teachers are there in your school? __________. , but I39。m not sure. A. Hundreds B. Hundred C. Hundreds of D. One hundred14. There are _________ doctors and nurses working hard in that hospital. A. thousand B. two thousand C. two thousands D. two thousands of15. What39。s one fourth and a half, do you know? Yes, it39。s _________. A. two sixths B. three fourths C. one three D. three sixth16. Now children, turn to page ________ and look at the _______ picture in Lesson Two. A. twentieth, one B. twenty, one C. twentieth, first D. twenty, first17. Both of the two rulers are broken. I w