6.小升初数词英语语法

1、数词 基数词的构成与读法（1) 0-12 如：zero one two three four five six seven eight nine ten eleven twelve (2) 13-19都以-teen结尾， 如：thirteen fourteen fifteen sixteen seventeen eighteen nineteen. (3) 20-90十位数的整数都以-ty结尾， 如:twenty thirty forty fifty sixty seventy eighty ninety. 基数词和序数词的表示法(4) 21-99twenty-one, thirty-two,

2、forty-three,fifty-four,sixty-five,seventy-six,eighty-seven,ninety-eight (5) 101-999 如： one hundred and one, two hundred and thirty nine hundred and ninety-nineOrdinal number序数词: firstsecondthirdfourthfifthsixthseventheighthninthtenth1st -2nd -3rd-4th -5th -6th -7th -8th -9th -10th-11th - eleventh12t

3、h - twelfth13th - thirteenth14th -fourteenth15th - fifteenth16th-sixteenth17th -seventeenth18th -eighteenth19th -nineteenth20th -twentieth21st - twenty-first 30th - thirtieth90th - ninetieth 100th - one hundredth101st - one hundred and firstOrdinal number序数词: 基数词变序数词的方法：基变序，有规律， 一二三，特殊记， first secon

4、d third th要从四加起， fourth ve要用f代替, fifth twelfth 八加h，九减e， eighth ninth 19，90不去e， nineteenth ,ninetieth 词尾是y 变ie， thirtieth ,fortieth 然后再加th， 几十几，几百几， thirty-first 前为基数尾用序。 One hundred and twelfth基数词序数词的用法hundred, thousand, million 与数字连用， 表示一定量的具体数字，不用复数， 但表示不定概念可用复数例：three hundred people, millions of

5、people2. 基数词表示时刻。例：7点 seven oclock, 7:20 seven twenty钟点表示法：直接表示法：6：30 six thirty 5：10 five ten间接表示法： 30分钟 ：（60-分钟）to （钟点+1） =30分钟：分钟past 钟点eg：1、6：15 six fifteen/ a quarter past six2、4：30 four thirty/ half past four3、6：35 six thirty-five/ twenty-five minutes to seven4、9： nine ten a.m.基数词的用法a quarter

6、=fifteen minutes a quarter to= forty-five minuteshalf =thirty分钟不是5的倍数,后加minute或minutes 在几整点at oclock注意：: 4:30 one fivefive minutes past one: 6:45: 7:56six forty-five a quarter to sevenfour thirtyhalf past fourseven fifty-sixfour minutes to eight three fifteen a quarter past threetwo eleven eleven mi

7、nutes past two3. 给某些事物编号Bus No. 729 Room 8302Class 3, Grade2 4.序数词主要用作定语，前面要加定冠词， 例如： The first truck is carrying a football John lives on the fifteenth floor5.表示年，月，曰时， 年用基数词表示，日用序数词表示。例如：1960年十月一曰写作：October 1st， 1960读作: October (the) first, nineteen sixty2004年九月十曰写作：September 10th, 2004读作：Septembe

8、r (the) tenth, two thousand and four在5月27日在6月1日的早晨在1993的7月在2009的9月9号在4月5日下午三点on May the twenty-seventhon the twenty-seventh of May on the morning of June the firstin the July of 1993on September the ninth, 2009 at 3：00p.m. on the fifth of April基数词的用法6.序数词有时用缩写形式： first1st second2nd third3rd fourth4t

9、h twenty-second22nd基数词变序数词歌基变序，有规律词尾加上-th(fourth,sixth)一、二、三，特殊例，结尾字母t,d,d(first,second,third)八去t,九去e,(eighth,ninth)ve 要用 f 替;(fifth,twelfth)ty将y改成i,th前面有个e。若是碰到几十几，前用基来后用序。 倍数表示法主语+谓语+倍数（或分数）+ as + adj. + asI have three times as many as you.我有你三倍那么多基数词的用法=I have two times more than you. .数词-量词（单数）-

10、形容词 结构做定语 数词 量词 形容词 结构做表语He is a five-year-old boyThe boy is five years old.注意：在某人五十多岁时 in ones fifties 在我60多岁时在她70多岁时在他80多岁时在汤姆90多岁时in his sixtiesin her seventiesin his eightiesin Toms ninetiesPractice：(把基数词几十变成复数twenty twenties thirty thirties forty forties fifty fifties)重要词组练习：在第8层楼在第5大街获3等奖在20世纪

11、一个8岁的男孩一个3天的旅行第9课十分钟的开车路程Lesson Nine =the ninth lesson in Fifth Streetwin third prizein the twentieth centuryan 8-year-old boya 3-day tripon the eighth floor ten minutes drive=a ten-minute drive 乘一部101路车 1976年唐山大地震 在第八频道 在402房间 第12页 在20世纪80年代早期 他的第5个生日 一个半小时（2）take a No.101 busthe1976 TangshanEarthq

12、uaeon Channel eight/8in Room 402one and a half hours=one hour and a halfin the early 1980spage twelve=the twelfth pagehis fifth birthday分数（Fraction）：子用基，母用序， 子大于一母变复， 中间符号勿忘记。1/21/3 3/4 7/109/20one-thirdseven-tenthsthree-fourths = three quartersnine-twentiethsone half = a half另外注意：0.82 45%地球表面积的3/49

13、7%的水我们班的一半学生四分之一面包zero point eight twoninety-seven percent of the waterforty-five percentthree-fourths of the earths surfacehalf of our class studentsa quarter of the bread1.序数词在使用时，一般在其前面加定冠the或物主代词等限定词如：the first time 第一次 his second son他的第二个儿子2. 如果序数词前加定冠词a/an，则表示“又一，再一”如：Ive tried twice. And I wa

14、nt a third try.3.分数作主语时，谓语动词要根据分数后的名词来确定，如果不可数名词就要用单数，是可数名词则用复数如：One third of the students in our class have been to the Great Wall. Four fifths of the water is drunk by the children.注 意Lets have a competition！实战追击Can you find the mistakes and correct them? 1.Two-third of the schools are very big. 2

15、.Mary has a eight-years-old boy. 3.My friend will stay in America in his fiftieth. 4.There are four thousand and three hundred and twenty-six books in our school library.Two-thirdsan eight-year-old boyin his fifties7. 5:27 is read as twenty-seven to five8.On my fifteen birthday,my parents helda part

16、y for me.9.About thousands of young people go abroad to study every year.10.More than two hundred of students live at school.pastfifteenthFill in the blanks with the given words：1.The _ _(five) day of the week is Thursday.2.The language lab is on the _(four) floor.3.We live on the _(nine) floor of t

17、hat high-rise.4.Tom is good at writing. He got the_ (three) prize in the contest.5.This is my _(two) visit to Hangzhou.fifthfourthninththirdsecond6.Look at the photo! The _ (five) man from the left is our class teacher, Mr. Wang.7.Lets take the lift up to the restaurant on the _(twenty) floor.8.The French artist said, ”lt s my _(five) time to visit Shangha