U1 Grammar

hundred, thousand, million的用法： 前面有数词，则不用其复数，如 two hundred, five thousand等。 表示上百、上千、上百万时，用 hundreds of, thousands of, millions of来表示。
① 一般来说，是由相应的基数词加词尾th 构成。例： ◇ four ＋ th → fourth ◇ six ＋ th → sixth ◇ seven ＋ th → seventh ◇ ten ＋ th → tenth ② 下面这些基数词在变为序数词时，有特 殊的变化。例： ◇ one → first ◇ two → second ◇ three → third ◇ five → fifth ◇ eight → eighth ◇ nine → ninth ◇ twelve → twelfth
2. 表示城市和国家的人口数量等；
3. 表示电话号码、车牌号、门牌
号、价格、年份等。
① 21～99的两位数，十位与个位之间用连 字符“-”。例： ◇ 21 twenty-one ◇ 32 thirty-two ◇ 98 ninety-eight ◇ 99 ninety-nine ② 101～999的三位数，百位数和后面的数 之间用连词and，百后用单数形式。例: ◇ 101 one hundred and one ◇ 225 two hundred and twenty-five ◇ 999 nine hundred and ninety-nine
③ 十位整数序数词的构成方法是将基数词 的词尾y变成i，然后再加eth。例： ◇ twenty → twentieth ◇ thirty → thirtieth ◇ forty → fortieth ◇ ninety → ninetieth ④ 两位或两位以上的基数词变成序数词 时，仅将个位数变成序数词。例： ◇ twenty-one → twenty-first ◇ thirty-five → thirty-fifth ◇ a hundred and fifty-three → a hundred and fifty-third
7.—Where is Class ___________? —It’s on the _________ floor. （2013天津） A.Six; third B.Sixth; third C.Six; three D.Sixth; three
以上我们已经通过归纳总结和练习 对本课的语法内容有了一定的了解， 下面就让我们根据 之前练习的考察情 况进一步选择讲解
该语法项的重难点。

表示数目和顺序的词叫做数词。数词 又分基数词和序数词，基数词表示数 量，序数词表示顺序。 1. 表示班级、年级、学校人数等；
(Class 2, Grade 7)
I. Choose the best answer. 1. I'm 13 years old and my sister is 15 years old. So my sister is _____ years older than me. (2012山东济南) A. one B. two C. three D. four 2. ______ visitors come to Xingyi during May Day holidays every year. (2012黔西南) A. Thousands of B. Two thousands C. Thousand of D. Thousand
Cardinal numbers 1 one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve
Ordinal numbers 1st = first 2nd = second 3rd = third 4th = fourth 5th = fifth 6th = sixth 7th = seventh 8th = eighth 9th = ninth 10th = tenth 11th = eleventh 12th = twelfth
Ordinal numbers 13th = thirteenth 14th = fourteenth 15th = fifteenth 16th = sixteenth 17th = seventeenth 18th = eighteenth 19th = nineteenth 20th = twentieth 21st = twenty-first 22nd = twenty-second 23rd = twenty-third 30th = thirtieth
3. — How was your weekend? — Great! It was my grandfather's ______ birthday. We enjoyed ourselves. (2012广东) A. seventy B. seventieth C. the seventieth D. seventeenth 4. He wrote his ______ novel when he was ______. (2011湖北恩施) A. five; fifties B. fifth; fifty C. fifth; fiftieth
5. Please turn to page ______ and look at the ______ picture in this unit. (2012山东聊城) A. twentieth; one B. twenty; one C. twentieth; first D. twenty; first 6. If a = 3 and b = 4, what’s the answer to the problem: a + b + 1 = ? The answer is ______. (2012四川宜宾) A. twelve B. nine C. eight D. seven
We use the cardinal numbers to talk about the numbers of people or things. e.g. The CN Tower is 1,815 feet tall. There are about 8,000,000 people living in London. We use the ordinal numbers to talk about dates, floors, positions, etc. e.g. Women’s Day is on the eighth of March. Our flat is on the seventh floor. He is always the first to come to school in our class.
to test your sense of observation to test your ability of short-term memory to test your ability to highlight the language points
Guess
还记得这些数词么？ 1 Grade __ 7 … 1. The new students in Class __, 2. Li Hua is ___ 22 years old. 18 classrooms in it. My 3. There are ___ ground floor. classroom is on the ________ fifteen yuan. 4. I only have _______ twenty restaurants in town. 5. There are _______ Fifth Street! 6. The biggest one in _____ 15 miles from London. 7. I live in a town ___ seventh floor. 8. Our flat is on the _______ eight rooms. 9. It has ______
③ 1000以上的数，从后面向前数，每三 位中间点 “,”，第一个 “,” 前为 thousand，第二个 “,” 前为 million， 例： ◇ 2,567 two thousand five hundred and sixty-seven ◇ 3,018 three thousand and eighteen ◇ 16,250,064 sixteen million two hundred and fifty thousand sixty-four
1. September is the _____ month of the year. A. nineth B. ninth C. nine D. the twelfth 2. _____ Chinese are looking for ways to learn English well before Beijing 2008 Olympic Games. A. Thousand B. Thousands C. Thousand of D. Thousands of
Sentences from this unit: 1. There are twenty restaurants in town. (P6) 2. The biggest one in Fifth Street! (P6) 3. I live in a town 15 miles from London. (P8) 4. Our flat is on the seventh floor. (P8) 5. It has eight rooms. (P8)
area over
To learn the cardinal numbers and use them to talk about the numbers of people or things