数词第七次课8词

1、合口双元音ei ai1Bake 烧烤 Kate 凯特May 五月Today 今天Great Way 道路 2Bike kite3数词4数词的概念 数词表示数目的多少或顺序先后。数词分为基数词和序数词。基数词：one ,two ,three,four.序数词：first, fifth, ninth, twenty-eighth5基数词的构成112ElevenTwelve1319ThirteenFourteenFifteen SixteenSeventeenEighteenNineteen1319的数字都以teen结束。62099的基数词表达Twenty ThirtyFortyFiftySixty

2、SeventyEightyninety2090整的基数词，皆以ty 结尾，其中2199非整十基数词，在十位与各位之间加连字符”-”thirty-one7100以上的基本基数词100 a hundred1 000 a thousand10 000 ten thousand100 000 a hundred thousand1000 000 a million10 000 000 ten million100 000 000 a hundred million1000 000 000 a billion8百位的数目，一般在百位和十位之间或百位和各位之间加and 301 a hundred and

3、one320 three hundred and twenty648 six hundred and forty-eight9千位以上的数目从右向左数起，每三位数加一个逗号或空格。从右开始，第一个逗号处读thousand,第二个逗号或空格处读million,第三个逗号处或空格处读billion2 648 two thousand, six hundred and forty-eight3008 three thousand and eight16 250 064 sixteen millon, two hundred and fifty thousand, sixty-four5 237 16

4、6 234 five billion, two hundred and thirty-seven million, one hundred and sixty-six thousand,two hundred and thirty-four10hundred thousand million表示数量的用法1.hundred ,thousand ,million 等在表示确切数量时，用单数形式。如两千人 two thousand people2.hundred,thousand, million表示不确切的数量时，要用复数形式，且与OF连用，如thousands of people几千人3.hu

5、ndred thousand million可被具体的数字修饰，也可被several,a few等词修饰几千年 several thousand years 几百本书 a few hundred books11There are over _students in their school.A hundreds b nine hundreds C hundreds of d nine hundred12练习Every year,_ people go to visit their factory.A a thousand of B thousandsC thousand of d thousa

6、nds of 13基数词的句法功能1.Three from eight leaves five.八减去三得五。2.My cell phone number is 138499我的手机号码是3.We still have one hour left.我们还剩一个小时的时间4.We two will help you .我们两个会帮你。14序数词序数词除了first ,second, third 有独特的形式外，其他基本是在基数词词尾加-th构成1.20-90的序数词的表达 20-90整十序数词，将基数词词尾Y改成i，再加上-eth,如thirtieth, seventieth2.21-99非整十

7、的序数词，仅把个位数变成序数词，十位数不变，如twenty-first ,twenty-second,3.序数词的缩写形式在数字后直接加上序数词的最后两个字母。如1st,2nd, 3rd,4th,5th ,22nd15100以上的序数词的表达第100 100th 读作one hundredth第101 101st 读作one hundred and first16This is Mr whites_visit to beijing .he has been there twice before.A two b second c three d third17序数词的句法功能The first

8、is mine and the second is yours.第一个是你的，第二个是你的。You are the second to come.你是第二个来的。The second Sunday of May is Mothers day.五月份的第二个星期日是母亲节。18数词的用法556 号房间 room 55618路公交车 bus 18第八号 number 8第223页 page 223 第9行 line 9电话号码 009-902-435-7334读作 telephone number zero,zero,nine nine zero two ,four ,three ,five ,s

9、even, double three four19Now ,everybody, please turn to page _and look at the _picture.A fifth fiveB five fifthC fifth fifthD five five20表达日期，年代用基数词表示年，年代是四位数时，常先读前两位数，在读后两位数。日，通常用序数词读出，前面用定冠词the年，月，日的表示顺序，“月，日，年，或者是日，月，年，211997 读作nineteen ninety-seven2009年10月25号 october 25th,2009.25th october ,2009

10、 读作october the twenty-fifty,two thousand and nine22英语中月份的省略写法January-Jan.February-Feb.March mar.April May JuneJulyAugustSeptemberOctoberNovemberDecember23表达 年龄我15岁I am fifteen years old.在七岁时At the age of sevenAt seven At age seven一个七岁的女孩A girl who is seven A seven-year-old girl 在某人几十岁的时候In ones +整十数

11、的复数形式 在他二十多岁的时候 in his twenties24表达时刻8:30 eight thirty9;05 nine o five8:18 eighteen past eight9:56 four to ten10:35 twenty-five to eleven 8:58 eight fifty-eight15分钟常用quarter 半小时用half表示10：45 a quarter to eleven11:30 half past eleven25What time do you ususlly get up , john?I usually get up at _.A half

12、 past six B half to six C half after six26表达分数，小数，百分数分数分子用基数词，分母用序数词，分子大于1时，分母须用序数词的复数形式二分之一 比较特殊 one half三分之一 one third三分之二 two thirds分数做主语时谓语动词的数应跟飞鼠所修饰的词的数保持一致。27_of the land in that district _covered with trees and grass.A Two fifths is B two fifth areC two fifth is D two fifths are28小数0.05 zero

13、 point zero five29百分数百分数用阿拉伯数字加百分号%或者percent3.5% three point five percent46% forty six percent30表示算式5+6=11 five plus six is /are /make/makes eleven11-5=6 eleven minus five is /makes six5x6=30 five times six is/are/make/makes thirty30除以6=5 thirty divided by five is /makes six.31表达倍数表示倍数时，一倍once ,两倍用t

14、wice/double,三倍一上用“基数词+times”1.倍数+as as 型We have produced three times as many as computers as we did last year.我们生产的计算机是去年的三倍之多。322. 倍数+the size of 用法与size 相同的名词常见的有weight ,height ,depth, width, lengthChina is almost five times the size of mexico in area.在面积上，中国几乎是墨西哥的五倍大。33序数词的特殊用法3. 序数词前不用the 或省略th

15、e 的情况I ll try a second time and see if I can do it .我还是要试第二次，看看我能否做得到。表示再一次，再一，4，序数词前有物主代词This is my twenty-third birthday.这是我的第23个生日34练习1,I got a beautiful bike on _birthday. I like it very much .A fifteenth B fifteen C my fifteen D my fifteenth35First of all 首先At first 当初March eighth 三月八号October (the )first 十月一日36Alex is _(fourth) years old and is taken good car