初中英語(yǔ)數(shù)詞講解和練習(xí)

1、數(shù)詞英語(yǔ)中的數(shù)詞可分為基數(shù)詞和序數(shù)詞兩大類?；鶖?shù)詞：人或事物的數(shù)目序數(shù)詞：數(shù)目的順序。 基數(shù)詞序數(shù)詞略數(shù)年代數(shù)詞1.基數(shù)詞基數(shù)詞 巧記基數(shù)詞口訣巧記基數(shù)詞口訣 1至12分別記 13至19都帶-teen 13，17 整十后面要用-ty 40，,90 幾十幾用連字符 53，32 百位以上and連 263 fifty-three ,thirty-twotwo hundred and sixty-two注意： 英語(yǔ)中沒(méi)有“萬(wàn)”和“億” 這兩個(gè)數(shù)量單位，要按十進(jìn)位法來(lái)推算。 一萬(wàn)：ten thousand 十萬(wàn)：one hundred thousand 百萬(wàn)：one million 千萬(wàn)： 一億： 十億

2、：ten millionone hundred millionone billion英語(yǔ)數(shù)量單位 one 個(gè) ten 十 hundrend 百 thousand 千 million 百萬(wàn) billion 十億2.序數(shù)詞基數(shù)詞序數(shù)詞：onefirsttwosecondthreethird大部分基數(shù)詞都在后面加th注意：fivefifth nineninth twelvetwelfth注意：整十的基數(shù)詞（10除外），均將y變成ie，再加th：twentytwentieth fifty fiftieth表示二十以上的基數(shù)詞只變個(gè)位數(shù)（整十除外）：thirty-onethrity-first3.略數(shù)表

3、達(dá)法1. 當(dāng)hundred，thousand，million，billion，dozen等前面有具體的數(shù)詞時(shí)，后面既不能加s，也不能加介詞of。Our school bought two thousand books this year.我們學(xué)校今年買了兩千本書(shū)2. hundred，thousand，million，billion，dozen等前面沒(méi)有具體的數(shù)詞，則在其后加s和介詞of，表不確定的數(shù)量或形容數(shù)量之多 hundreds of 成百的，好幾百 thousands of 數(shù)以千計(jì)的 millions of 數(shù)百萬(wàn)的 There is only hundreds of students

4、 我們學(xué)校只有幾百個(gè)學(xué)生t three hundred students 三百個(gè)學(xué)生 two thousand books 兩千本書(shū) hundreds of students 三百個(gè)學(xué)生 thousands of books 兩千本書(shū) 幾百萬(wàn)個(gè)人 兩百個(gè)蘋(píng)果 三千個(gè)箱子 幾千個(gè)杯子 三百萬(wàn)棵樹(shù)There are _（兩千）students in our school.The Great Wall is made of_stones.長(zhǎng)城是由數(shù)百萬(wàn)石頭砌成的two thousandmillions of注意：若表示特定的數(shù)目，可在hundred、thousand后加ofThere are sev

5、en hundred students in this school. Three hundred of them are girls.該校有700名學(xué)生，其中女生有300名。 長(zhǎng)樂(lè)有六百萬(wàn)人，其中400萬(wàn)是男性。Changle has six million people.Four hundred of them are men.4.年代表達(dá)法在20世紀(jì)90年代：in the 1990s或in the 1990s具體年份：in + 年份 in 1994 把基數(shù)詞改為序數(shù)詞。 one twelve two fourteen three twenty five twenty-one eight

6、forty-four nine ninety-sixfirstsecondthirdfiftheighthninthtwelfthfourteenthtwentiethtwenty-firstforty-fourthninety-sixth22. January is _ month of the year. A. one B. the one C. first D. the first23. There are _ days in a year. A. three hundreds sixty-five B. three hundred and sixty-five C. the third

7、 hundred sixty-five D. third hundred and sixty-five24. The computer was cheap. I spent only two _ yuan on it. A. thousands B. thousand C. thousands of D. thousand of25. Please look at the following four pictures and write a _ story about them. A. one-hundred-word B. one-hundred-words C. one-hundreds

8、-word D. one-hundreds-wordstwo-thousand-student兩千個(gè)學(xué)生26. On which floor do you live?The _ floor, and my room number is _. A. fifth; five zero two B. fifth; five zero second C. five; five zero second D. five; five zero two27. In our city people have moved into their new houses. A. thousand B. thousands C. thousands of D. many thousand28. Now , turn to page _ and look at the _ picture in Lesson Two.A. twentieth, one B. twenty, one C. twentieth, first D. twenty, first29. _ girls took part in the Super Girl Competition but only few of them succeeded.A. One million of B. Thousands and