不规则的有:
am,is—was;are—were;do,does—did;have,has—had;go—went;meet—met;sit—sat;see—saw;get—got;tell—told;run—ran;come—came;steal—stole;read—read;
【必背知识】
数词:基数词、序数词
基数词
(1)1-20
one,two,three,four,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen,twenty
(2)21-99先说“几十”,再说“几”,中间加连字符。
23→twenty-three,34→thirty-four,45→forty-five,56→fifty-six,67→sixty-seven,78→seventy-eight,89→eighty-nine,91→ninety-one
(3)101—999先说“几百”,再加and,再加末两位数或末位数;
586→five hundred and eighty-six,803→eight hundred and three
(4)1,000以上,先从右往左数,每三位数加一个“,”,第一个“,”前为thousand.第二个“,”前为million,第三个“,”前为billion
1,001→one thousand and one
18,423→eighteen thousand,four hundred and twenty-three
6,260,309→six million two hundred and sixty thousand three hundred and nine
750,000,000,000→seven hundred and fifty billion
序数词
(1)一般在基数词后加th
eg.four→fourth,thirteen→thirteenth
(2)不规则变化
one→first,two→second,three→third,five→fifth,eight→eighth,nine→ninth,twelve—twelfth
(3)以y结尾的十位整数,变y为ie再加th
twenty→twentieth,forty→fortieth,ninety→ninetieth
(4)从二十一后的“几十几”直至“几百几十几”或“几千几百几十几”只将个位的基数词变为序数词。
twenty-first,two hundred and forty-fifth
小学六年级英语总复习知识点归纳之一
1、话题
(1)字母:(大小)辨认、书写顺序:Aa Bb Cc Dd Ee Ff Gg Hh Ii Jj Kk Ll Mm Nn Oo Pp Qq Rr Ss Tt Uu Vv Ww Xx Yy Zz.
元音字母:A a,Ee,Ii,Oo,Uu
半元音字母:Yy
书写容易错误的字母:E,F,G,M,N,d,i,p,q,x,y.
(2)数字:基数词和序数词的运用,如计算、购物等.
基数
词:One,two,three,five,six,seven,eight,nine,ten,eleven,twelve,thirteen,fourteen,fifteen…twenty,twenty-one…thirty,forty,fifty…eighty,ninety,one/a hundred,one/a hundred and one…two hundred.
序数
词:first,second,third,fourth,fifth,sixth,seventh,eighth,ninth,tenth,eleventh,twelfth…twentieth,twenty-first,twenty-second,twenty-third,twenty-four…thirtieth,fortieth,fiftieth…eightieth,ninetieth…
相关句型:1)What’s thirty and forty?That comes to seventy.
2)What’s your telephone number?My telephone number is 83555723.
3)What time is it?It’s half past ten.
4)When do you usually get up?At six thirty-five.