云南省中考英语第二部分语法专题突破专题数词课件.ppt

单击此处编辑母版文本样式,第二部分语法专题突破,中考总复习 英语,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,专题四数词,知识网络梳理,重难点讲练,1,常考的基数词和序数词对照表,基数词和序数词,考点一,基数词,one,two,three,four,five,six,seven,序数词,first,second,third,fourth,fifth,sixth,seventh,序数词缩写,1st,2nd,3rd,4th,5th,6th,7th,基数词,eight,nine,ten,eleven,twelve,thirteen,fourteen,基数词,one,two,three,four,five,six,seven,序数词,eighth,ninth,tenth,eleventh,twelfth,thirteenth,fourteenth,序数词缩写,8th,9th,10th,11th,12th,13th,14th,基数词,fifteen,sixteen,seventeen,eighteen,nineteen,twenty,twentyone,序数词,fifteenth,sixteenth,seventeenth,eighteenth,nineteenth,twentieth,twentyfirst,序数词缩写,15th,16th,17th,18th,19th,20th,21st,Well go over it a second time.,hundred and sixtysix thou,从右向左每隔三位数加一个逗号，依次为thousand，million,billion,Six divided by two equals/is three.,1/2：one seconda half,只需将基数词放在它所修饰的名词之后即可，不需要添加定冠词。,Two times three is/equals six.,Six divided by two equals/is three.,个位数hundred and末尾两位数或末位数,特殊：twenty，thirty，forty，,整位数连字符个位数,Half of the students are from foreign countries.,a tenminute walk 10分钟的路程,hundred，thousand，million等词与具体的数字one，two或several，some，many等连用，要用单数形式。,(4)具体日期(年，月，日)：1949,10,1读作on October first nineteen fortynine。,1/4：one fourtha quarter,the first lessonLesson One 第一课,the first lessonLesson One 第一课,做了二分之一的家务。,hundred，thousand，million等词与of连用，要用复数形式，但前面不能再加数字。,Eight minus six is two.,twentyfirst,Two times three is/equals six.,Two times three is/equals six.,89,999,866,266：eightynine,从右向左每隔三位数加一个逗号，依次为thousand，million,billion,89,999,866,266：eightynine,一般：sixty,seventy,ninety,twentyfive past six(6：25),除号是into/divided by,Two and four is six.,Two into six equals/is three.,Must we try it a fourth time？我们已经试过三遍了，还必须再试一次(第四次)吗？,2,基数词的用法,(1)表示数量,2090整位数,以ty结尾,特殊：twenty，thirty，forty，,fifty eighty,一般：sixty,seventy,ninety,两位数,(几十几),整位数连字符个位数,twentyone,thirtytwo,fortythree,fiftyfour,sixtyfive，seventysix,eightyseven，ninetyeight,三位数,(几百几),个位数hundred and末尾两位数或末位数,215：two hundred and fifteen,多位数,从右向左每隔三位数加一个逗号，依次为thousand，million,billion,89,999,866,266：eightynine,billion nine hundred and,ninetynine million eight,hundred and sixtysix thou,sand two hundred and sixtysix,(2)表示时刻(过past，差to读法),整点,数词后加oclock,five oclock(5：00),几点过几分,分钟数,30分,twentyfive past six(6：25),half past six(6：30),几点差分,分钟数,30分,a quarter to seven(6：45),ten to seven(6：50),(3)表加，减，乘，除(等号是equals/is),算法,加，减，乘，除号,例句,加法,加号是and/plus,Two and four is six.二加四等于六。,Two plus four equals/is six.二加四等于六。,减法,减号是from/minus,Six from eight is two.八减六等于二。,Eight minus six is two.八减六等于二。,乘法,乘号是multiplied by/times,Two multiplied by three is/equals six.二乘三等于六。,Two times three is/equals six.二乘二等于三。,除法,除号是into/divided by,Two into six equals/is three.六除二等于三。,Six divided by two equals/is three.六除二等于三。,(4)具体日期(年，月，日)：1949,10,1读作on October first nineteen fortynine。,(5),世纪,年代：in the 1980s读作in the nineteen eighties，意为,“,在20世纪80年代,”,。,(6),“,基数词单数名词,”,相当于复合形容词，作名词的定语，用于表示时间、距离等。,eg.,the 100metre race 100米赛跑,a tenminute walk 10分钟的路程,(7),“,in ones整十的复数,”,表示在,“,在某人,多岁时,”,。,eg.,in his forties 在他四十多岁的时候,3,序数词的用法,(1)序数词在使用时，通常前面要加定冠词the，但是如果序数词前出现不定冠词a或an时，则表示,“,再一；又一,”,。,eg.,Well go over it a second time.我们得再检查第二遍。,Weve tried it three times.Must we try it a fourth time？我们已经试过三遍了，还必须再试一次(第四次)吗？,(2)基数词也可以表示顺序。只需将基数词放在它所修饰的名词之后即可，不需要添加定冠词。,eg.,the first lessonLesson One 第一课,the fifth pagePage 5(Five)第五页,the twentyfirst roomRoom 21(Twentyone)21号房间,1,表示确切的数字(具体数字概数词名词复数),hundred，thousand，million等词与具体的数字one，two,或several，some，many等连用，要用单数形式。,eg.,five hundred people 500人,two thousand books 两千本书,several million trees 几百万棵树,概数词,考点二,2,表示不确切的数字(概数词加sof名词复数),hundred，thousand，million等词与of连用，要用复数形式，但前面不能再加数字。,eg.,thousands of factories成千上万家工厂,1,三个分数的两种读法,1/2：one seconda half,1/4：one fourtha quarter,3/4：three fourthsthree quarters,2,“,分数of名词,”,作主语时，谓语动词的单复数要以of后的名词为准。,eg.,Three quarters of the teachers are women teachers,and one fourth of the teachers are men teachers in our school.,我们学校四分之三是女老师，四分之一是男老师。,分数的用法,考点三,3,“,半,”,的表示法,(1),“,half of名词,”,作主语，谓语动词的单复数以of后名词为准。,eg.,Half of the students are from foreign countries.有二分之一的学生来自外国。,Half of the housework is done.做了二分之一的家务。,(2),“,名词,”,作主语，谓语动词常用单数形式。,eg.,Dont worry.There is still one and a half hours/one hour and a half left now.不要担心。还有小时。,谢谢观看！,