中考英语复习课件专题四数词.ppt

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1、一一.基数词、序数词基数词、序数词二二.数词的表示法数词的表示法基数词基数词序数词序数词基数词基数词序数词序数词onetwelvetwotwentythreetwenty-onefourfortyfiveone hundredsixone hundred and fiveeightone hundred and twenty-nineninenineteen一一.基数词、序数词基数词、序数词firstsecondthirdfourthfifthsixtheighthninthtwelfthtwentiethtwenty-firstfortiethone hundredthone hundred

2、 and fifthone hundred and twenty-ninthnineteenth基数词变序数词的口诀一二三，要死记；四后都加th；五用f换ve，其后都加th;六七同四首规律；八少t,九去e,然后再加th;十和十一首规律;十二f换ve,然后再加th;十三起，十九止，其后都加 th;整十数有规律，先将y变为ie，然后再加th；几十几，有规律，前半基数后半序，在用短横线连起；二二.基数词的读法基数词的读法1 1、百位和十位间用、百位和十位间用 and 连接连接,十位和个位间用十位和个位间用 -连接连接three hundred and twenty-one3212 2、右往左数、右往

3、左数,三位一组三位一组,逗号隔开逗号隔开.依次是依次是 thousand(千千)million (百万百万)billion (十亿十亿)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 thou

4、sand three hundred and twenty-one1.hundred thousand (表示表示具体具体数字数字)million billion2.hundreds thousands (表示表示概数概数)millions billions三三.基数词的用法基数词的用法数词数词(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.I

5、n our school several _ students are able to search 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;hu

6、ndreds C.hundreds;hundred 月日年月日年 在在2008年年10月月1日日四四.数词的表示法数词的表示法 年月日年月日on Octorber the first,two thousand and eight日日the+序数词序数词月月（首字母大写）（首字母大写）月日与年之间月日与年之间用用 ，分开分开年年（两位两位读）（两位两位读）on August the ninthin May,two thousand and ten有日用有日用 on 无日用无日用inon Oct.1st,2008 月日月日 在在8月月9日日 月年月年 在在2010年年5月月1.The accide

7、nt 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 C.on May,199520世纪90年代in the 1990s/in the 1990s在他50多岁时in his fifties四四.数词的表示法数词的表示法 年代世纪年代世纪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 _ ce

8、ntury.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 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 fift

9、ies C.in his fifty时间类型时间类型表示法表示法例例读法读法整点整点基数词（基数词（+oclock)1:0030分钟分钟分钟分钟+past+小时小时 2:10=30 分钟分钟half+past+小时小时3:3030分钟分钟（60-分钟）分钟）+to+（小时（小时+1）4:40分钟逢分钟逢15即即 一刻钟一刻钟a quarter5:156:45简化法简化法按顺序读基数词按顺序读基数词7:50one oclockten past twohalf past threetwenty to fivea quarter past fivea quarter to sevenseven fi

10、fty表示在几点钟用介词表示在几点钟用介词 at四四.数词的表示法数词的表示法 时间时间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分子分子 基数词基数词分母分母 序数词序数词one fifth27分子分子 1分母分母+stwo sevenths14分子分子 a分母分母 quartera quarter34three quarters12a half四四

11、.数词的表示法数词的表示法 分数分数1._ 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 is about one hundred,and _ of them are women teachers.A.The number of;two third B.The

12、 number of;two thirds C.A number of;two thirds一个半小时一个半小时两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四四.数词的表示法数词的表示法 半的表示法半的表示法1.The boy always stays there for _.A.one and half hour B.one and a half hour C.one and a half hours2.The old man drank_ beer.

13、A.two bottles and a half B.two and a half bottle C.two bottle and a half一般编码用一般编码用 名词名词+基数词基数词207房房 三年级一班三年级一班第五部分第五部分第一课第一课3 号汽车号汽车第一中学第一中学Room 207 Class one Grade threepart five=the fifth partlesson one=the first lesson Bus No.3=the No.3 busNo.1 Middle School四四.数词的表示法数词的表示法 编号编号 The winner is _.He

14、 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 20四四.数词的表示法数词的表示法 年龄年龄 The river is about _.A.6,000 meters long B.6,000-meters-long C.6,000-meter-long四四.数词的表示法数词的表示法 计量计量be+数词数词+量词量词+形容词形容词