初中语法数词复习ppt课件.ppt

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1、烧伤病人的治疗通常是取烧伤病人的健康皮肤进行自体移植，但对于大面积烧伤病人来讲，健康皮肤很有限，请同学们想一想如何来治疗该病人一.基数词、序数词二.数词的表示法烧伤病人的治疗通常是取烧伤病人的健康皮肤进行自体移植，但对于大面积烧伤病人来讲，健康皮肤很有限，请同学们想一想如何来治疗该病人基数词的构成1）112,独立成词。one two three four five six seven eight nine ten eleven twelve2）13-19,由39+teen构成。14fourteen 16-sixteen 17-seventeen 19nineteen 特殊拼写:13 thirt

2、een 15-fifteen 18eighteen 3）2090,以-ty结尾。20twenty 30-thirty 40forty 50fifty 80-eighty 60-sixty 70-seventy 90ninety 4）2199，两位数，十位与个位之间有“”。21 twentyone 55 fiftyfive 99 ninetynine5）101999，三位数，百位与十位/个位之间加and。101 one hundred and one 840 eight hundred and forty 693 six hundred and ninety-three 烧伤病人的治疗通常是取烧

3、伤病人的健康皮肤进行自体移植，但对于大面积烧伤病人来讲，健康皮肤很有限，请同学们想一想如何来治疗该病人一.基数词变序数词firstsecondthirdfourthfifthsixtheighthninthtwelfthtwentiethtwenty-firstfortiethone hundredthone hundred and fifthone hundred and twenty-ninthnineteenth烧伤病人的治疗通常是取烧伤病人的健康皮肤进行自体移植，但对于大面积烧伤病人来讲，健康皮肤很有限，请同学们想一想如何来治疗该病人口诀：基变序，有规律，词尾加上th。一、二、三特殊记

4、，结尾字母t d d.八减t，九减e，ve 要用f替。ty把y变成ie，再加th。若是碰到几十几前用基，后用序。二.基数词的读法1、百位和十位间用 and 连接,十位和个位间用-连接three hundred and twenty-one3212、右往左数,三位一组,逗号隔开.依次是 thousand(千)million(百万)billion(十亿)烧伤病人的治疗通常是取烧伤病人的健康皮肤进行自体移植，但对于大面积烧伤病人来讲，健康皮肤很有限，请同学们想一想如何来治疗该病人29,431 50076,thousandhundredmillionbillionand6)1，000以上数目,从右向左

5、每三位用“，”分开,分别读为thousand,million,billion 基数词的构成four thousand three hundred and twenty-oneseven million,six hundred and fifty four thousand three hundred and twenty-one7,654,3211,987,654,32143214,321one billion nine hundred and eighty-seven million,six hundred and fifty-four thousand three hundred and

6、twenty-one1.hundred thousand(表示具体数字)million billion2.hundreds thousands(表示概数)millions billions三.基数词的用法数词(several)+ofsome/many hundreds of1.If a=3,b=4,whats the answer to the problem,a+2ab+1=?the answer is_.A.twenty eight B.twenty-eighth C.twenty-eight2.In our school several _ students are able to se

7、arch the Internet.A.hunderd of B.hunderds of C.hundred3.Many _ sheep were killed in the accident.A.thousands of B.thousand C.thousands4.There are over nine _ workers in the factory,but _ of young people hope to work in it.A.hundred;hundreds B.hundreds;hundreds C.hundreds;hundred 月日年 在2008年10月1日四.数词的

8、表示法 年月日on Octorber the first,two thousand and eight日the+序数词月（首字母大写）月日与年之间用，分开年（两位两位读）on August the ninthin May,two thousand and ten有日用 on 无日用inon Oct.1st,2008 月日 在8月9日 月年 在2010年5月1.The accident happened on_.A.April 5,2001 B.2001,April 5 C.April 2001,52.I was born _.A.in March 8,1993 B.on July 9,1994

9、 C.on May,199520 世纪90 年代in the 1990s在他50 多岁时 in his fifties四.数词的表示法 年代世纪in thein ones+整十基数词复数在某人几十岁时nineteen nineties1.There will be more chances in _ century than in _ century.A.twenty-one,twenty B.twenty-first,twentieth C.the twenty-first,the twentieth2.The city changed a lot _.A.in 1980s B.in the

10、 1980s C.in the 19803.He graduated in _ of _ century.A.the sixtieth;twenty B.sixty;the twentieth C.the sixties;the twentieth4.He got the prize _.A.in his fifties B.in fifties C.in his fiftyone oclockten past twohalf past threetwenty to fivea quarter past fivea quarter to sevenseven fifty表示在几点钟用介词 at

11、四.数词的表示法 时间1.Its already 7:40 now.When will the film start?_.We still have five minutes.A.A quarter to seven B.Seven past forty-five C.A quarter to eight15分子 基数词分母 序数词one fifth27分子 1分母+stwo sevenths14分子 a分母 quartera quarter34three quarters12a half13three and one third3基数词+and+分数四.数词的表示法 分数百分数80%基数词+

12、percenteighty percenthalf/(百)分数+of+可数名词复数 谓语动词用复数half/(百)分数+of+不可数名词谓语动词用单数3.78 three point seven eight1._ of the students _ boys in Class A.Two three;are B.Two thirds;are C.Two thirds;is2._ of her money _ spent on clothes.A.Two three;are B.Two thirds;is C.Two third;is3._ the teachers in our school

13、is about one hundred,and _ of them are women teachers.A.The number of;two third B.The number of;two thirds C.A number of;two thirds一个半小时两个半小时 two and a half hours=two hours and a half one and a half hours=one hour and a half四.数词的表示法 半的表示法1.The boy always stays there for _.A.one and half hour B.one a

14、nd a half hour C.one and a half hours2.The old man drank_ beer.A.two bottles and a half B.two and a half bottle C.two bottle and a half一倍 once，两倍 twice，三倍 three times(三倍或以上 基数词times)四.数词的表示法 倍数 This box is five times as big as that one.=This box is four times bigger than that one.A+be+倍数+as+adj.原+as

15、+B.A是B的 倍 C+be+倍数+adj.比+than+D.C比D 倍1.This building is _ that building.A.three time as tall as B.twice taller than C.three times as taller as2.我的箱子比你的重六倍!My box is _ yours.six times heavier thanseven times as heavy as一般编码用 名词+基数词207房 三年级一班第五部分第一课3 号汽车第一中学Room 207 Class one Grade threepart five=the f

16、ifth partlesson one=the first lesson Bus No.3=the No.3 busNo.1 Middle School四.数词的表示法 编号 The winner is _.He is an _ boy.A.eight-year-old;eight years old B.eight years old;eight-year-old C.eight-years old;eight-year-old He came to China _.A.at the age of 20 B.when he is 20 C.at age of 20四.数词的表示法 年龄 The river is about _.A.6,000 meters long B.6,000-meters-long C.6,000-meter-long四.数词的表示法 计量be+数词+量词+形容词