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1、,数词,定义：表示数目多少或顺序先后的词叫做数词。数词有两种：*表示数目多少的数词叫做基数词，如：one，two，three.，ninetyfour等；*表示顺序先后的数词叫做序数词，如：first，second，third.，fifteenth等。,例句,There are five people in my family. 我家有五口人。We live on the sixth floor in a tall building.我们住在一座高楼的第六层。,基数词(一)基数词的表示方法1基数词112是独立的词。,1 one 2 two 3 three 4 four 5 five 6 six
2、7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve,(2)1319都以teen结尾，都是双重音：13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen,2基数词2090整十位数都是以ty结尾。,20 twenty / twentI/ 30 thirty / tI/40 forty / ftI/ 50 fifty / fIftI/60 sixty / sIkstI/ 70 seventy / sevntI/80 eighty / eItI/
3、 90 ninety / naIntI/注：1319的teen/tin/都是重读音，而2090的ty/tI/都是非重读音节；/tin/为长音，而/tI/为短音。,3基数词2199都是由“几十”和“几”合起来构成，词中间加连字符(但音标里不加连字符)，并分别重读。21 twentyone 45 fortyfive 23 twentythree 56 fiftysix 34 thirtyfour 67 sixtyseven,4基数词101999，先说“几百”，再加“and”，再加末两位数。How many days are there in a year? 一年有多少天？_. 三百六十五天.,Th
4、ree hundred and sixtyfive,51,000以上的数，先从后向前数，每三位加“，”，第一个“，”前为thousand，第二个“，”前为million，第三个“，”前为billion(美式)或thousand million(英式)。Can you write the number _?你会写数字85,626吗？Yes, it is 85,626. 会写，它是85,626。,eightyfive thousand，six hundred and twentysix,6百(hundred)，千(thousand)，百万(million)等词与数字或a(n)连用时，词尾不可加“s
5、”。The computer was cheap. _那台电脑很便宜，我只花了两千元.,I only spent two thousand yuan on it.,7百(hundred)，千(thousand)，百万(million)等词与介词of连用时，须用复数形式，表示不确定数目，其前不可与数字连用。How many people went to Beijing for the Olympic Games in 2008?有多少人去北京看2008年奥运会？_，I think. 上百万，我认为。,Millions of,8表示“几十”的数词的复数形式可用来表示人的岁数，She is _ bu
6、t she looks young.她五十多岁，但她看上去很年轻。,in her fifties,在表示“几十年代”时，可以用基数词的复数形式，也可用阿拉伯数字加“s”或“s”。,From_ to _，picturestory cartoons were very popular.从20世纪50年代到20世纪70年代，图画故事的卡通片是很受欢迎的。,the 1950s(1950s),the 1970s(1970s),9基数词可与其他词构成合成形容词。Kate is an _ girl. 凯特是个18岁的女孩。,注：这种合成形容词的结构为：“数词单数名词形容词”。复合形容词中，词与词之间要加连字
7、符“”。,eighteenyearold,10基数词可用作主语、宾语、表语或同位语。,Give him three.(宾语) 给他三个。_ of the teachers in our school are women teachers.(主语)我们学校三分之二的老师是女老师。,Two thirds,11电话号码的读法为顺次读出一个个数字，“0”读作“o”或“zero”。数字连续重现时可用“double(双)”。62884405读作_或_。,six two eight eight four four o (或zero)five,six two double eight double four
8、o (或zero)five,(二)序数词表示顺序的数词称为序数词。序数词一般以与之相应的基数词加词尾th构成；多个单词时，仅最后一个变为序数词。序数词前一般需加“the”。,1.“基数词”变“序数词”的口诀一、二、三特殊记，结尾要用t,d,d;八去t，九去e，ve要用f替，整十数变序数，先把y变为ie，然后再加th，若想表示几十几，只变个位就可以。,2序数词作主语、宾语、表语、定语、同位语或状语。She was the_fifth in the exam.(作表语)The first of June is Childrens Day.(主语)3表顺序时，基数词和序数词可互换，如：Lesson
9、Five_,the fifth lesson,(三)分数1分数的表达与读法。Two thirds of the students are girls in our class. 在我们班，三分之二的学生是女孩。,注：分子须用基数词，分母用序数词。分子如果大于1，分母须用复数形式。先读分子，再读分母。分子为 one 时可换用“a”。,21/2读作“ a(one)half ”(而不是a second“一秒钟”)；1/4既可读作“ a(one) quarter ”，又可读作“ a(one) fourth ”。_ are written in English.世界上3/4的书和报纸是用英语写的。,Th
10、ree quarters of the worlds books and newspapers,3较复杂的分数的读法为“基数词分子over基数词分母”。带分数的读法是在整数与分数之间加读and。,twenty-seven over two hundred and eighty-five,five and a half,six and four fifths,(四)其他数的表达1小数的读法：小数点前的基数词与前面所讲的基数词读法完全相同，小数点读作“point”，小数点后只需将数字一一读出。1567读作_0009读作 zero point zero zero nine,fifteen point
11、 six seven,2百分数的读法：先读基数词，再读百分号“%”(读作percent)。,5%读作five percent05%读作_200%读作_,zero point five percent,two hundred percent,3年代的读法为两位、两位地读。整百的后读hundred，整千的后读thousand，前常加“the year”。1937读作nineteen thirtyseven或：nineteen hundred and thirtyseven1900年读作nineteen hundred1905年读作nineteen and(或o)five或：nineteen hun
12、dred and five 2000年读作the year two thousand,4表示公元后在年份前或后加AD/ ,eIdi/皆可，公元前一律在年份后加BC/ , bici/。表几十年代时，前加 the，后加s或s。,from 200 BC to 500 AD/AD 500从公元前200年到公元后500年in the 1960s或1960s(读作nineteen sixties) 二十世纪六十年代,5年、月、日的英语顺序为“月，日，年”。“日”用序数词读和写(有时也可用基数词)；“日”读在“月”前时要加读“of”。July 7(th)，20052005年7月7日读作：July the s
13、eventh two thousand and five 或the seventh of July two thousand and five Today is Thursday，September 19th.今天星期四，9月19日。,7一些数学公式的读法：“加”用plus/and，“减”用minus， “乘”用times，“除”用divided by，动词多用单数，如：358读作：927读作：6530读作：842读作：,Three plus/and five is eight.Nine minus two is seven.Five times six is thirty.Eight div
14、ided by four is two.,1.Now，everybody，please turn to Page_and look at the_picture.AFifth；five BFive；fifth CFifth；fifth DFive；five,练一练,2.Do you have enough students to clean the laboratory?No, I think we need _students.Aanother Btwo othersCmore two Dtwo more,3.The government of Chongqing is building_c
15、heap and good houses for the people.Athousand BthousandsCthousand of Dthousands of,4.Nowadays _of business letters are written in English.Atwo third Btwo thirdsCtwo three Dsecond three,5David, how old is your father this year?_.And we just had a special party for his _ birthday last weekend.AFortiet
16、h；forty BForty；fortyCForty；fortieth DFortieth；fortieth,6Nearly _of the earth _covered by sea.Athree fourth; is Bthree fourths; isCthree fourth; are Dthree fourths; are,7.The number of the students in our school is about nine _. _ of them are boys.Ahundred; Two thirdsBhundred; Two thirdChundreds; Two
17、 thirdsDhundreds; Two third,Thank you！,数词,定义：表示数目多少或顺序先后的词叫做数词。数词有两种：*表示数目多少的数词叫做基数词，如：one，two，three.，ninetyfour等；*表示顺序先后的数词叫做序数词，如：first，second，third.，fifteenth等。,例句,There are five people in my family. 我家有五口人。We live on the sixth floor in a tall building.我们住在一座高楼的第六层。,基数词(一)基数词的表示方法1基数词112是独立的词。,1
18、one 2 two 3 three 4 four 5 five 6 six 7 seven 8 eight 9 nine 10 ten 11 eleven 12 twelve,(2)1319都以teen结尾，都是双重音：13 thirteen 14 fourteen 15 fifteen 16 sixteen 17 seventeen 18 eighteen 19 nineteen,2基数词2090整十位数都是以ty结尾。,20 twenty / twentI/ 30 thirty / tI/40 forty / ftI/ 50 fifty / fIftI/60 sixty / sIkstI/
19、 70 seventy / sevntI/80 eighty / eItI/ 90 ninety / naIntI/注：1319的teen/tin/都是重读音，而2090的ty/tI/都是非重读音节；/tin/为长音，而/tI/为短音。,3基数词2199都是由“几十”和“几”合起来构成，词中间加连字符(但音标里不加连字符)，并分别重读。21 twentyone 45 fortyfive 23 twentythree 56 fiftysix 34 thirtyfour 67 sixtyseven,4基数词101999，先说“几百”，再加“and”，再加末两位数。How many days are
20、 there in a year? 一年有多少天？_. 三百六十五天.,Three hundred and sixtyfive,51,000以上的数，先从后向前数，每三位加“，”，第一个“，”前为thousand，第二个“，”前为million，第三个“，”前为billion(美式)或thousand million(英式)。Can you write the number _?你会写数字85,626吗？Yes, it is 85,626. 会写，它是85,626。,eightyfive thousand，six hundred and twentysix,6百(hundred)，千(thou
21、sand)，百万(million)等词与数字或a(n)连用时，词尾不可加“s”。The computer was cheap. _那台电脑很便宜，我只花了两千元.,I only spent two thousand yuan on it.,7百(hundred)，千(thousand)，百万(million)等词与介词of连用时，须用复数形式，表示不确定数目，其前不可与数字连用。How many people went to Beijing for the Olympic Games in 2008?有多少人去北京看2008年奥运会？_，I think. 上百万，我认为。,Millions o
22、f,8表示“几十”的数词的复数形式可用来表示人的岁数，She is _ but she looks young.她五十多岁，但她看上去很年轻。,in her fifties,在表示“几十年代”时，可以用基数词的复数形式，也可用阿拉伯数字加“s”或“s”。,From_ to _，picturestory cartoons were very popular.从20世纪50年代到20世纪70年代，图画故事的卡通片是很受欢迎的。,the 1950s(1950s),the 1970s(1970s),9基数词可与其他词构成合成形容词。Kate is an _ girl. 凯特是个18岁的女孩。,注：这种
23、合成形容词的结构为：“数词单数名词形容词”。复合形容词中，词与词之间要加连字符“”。,eighteenyearold,10基数词可用作主语、宾语、表语或同位语。,Give him three.(宾语) 给他三个。_ of the teachers in our school are women teachers.(主语)我们学校三分之二的老师是女老师。,Two thirds,11电话号码的读法为顺次读出一个个数字，“0”读作“o”或“zero”。数字连续重现时可用“double(双)”。62884405读作_或_。,six two eight eight four four o (或zero)
24、five,six two double eight double four o (或zero)five,(二)序数词表示顺序的数词称为序数词。序数词一般以与之相应的基数词加词尾th构成；多个单词时，仅最后一个变为序数词。序数词前一般需加“the”。,1.“基数词”变“序数词”的口诀一、二、三特殊记，结尾要用t,d,d;八去t，九去e，ve要用f替，整十数变序数，先把y变为ie，然后再加th，若想表示几十几，只变个位就可以。,2序数词作主语、宾语、表语、定语、同位语或状语。She was the_fifth in the exam.(作表语)The first of June is Childr
25、ens Day.(主语)3表顺序时，基数词和序数词可互换，如：Lesson Five_,the fifth lesson,(三)分数1分数的表达与读法。Two thirds of the students are girls in our class. 在我们班，三分之二的学生是女孩。,注：分子须用基数词，分母用序数词。分子如果大于1，分母须用复数形式。先读分子，再读分母。分子为 one 时可换用“a”。,21/2读作“ a(one)half ”(而不是a second“一秒钟”)；1/4既可读作“ a(one) quarter ”，又可读作“ a(one) fourth ”。_ are wr
26、itten in English.世界上3/4的书和报纸是用英语写的。,Three quarters of the worlds books and newspapers,3较复杂的分数的读法为“基数词分子over基数词分母”。带分数的读法是在整数与分数之间加读and。,twenty-seven over two hundred and eighty-five,five and a half,six and four fifths,(四)其他数的表达1小数的读法：小数点前的基数词与前面所讲的基数词读法完全相同，小数点读作“point”，小数点后只需将数字一一读出。1567读作_0009读作 z
27、ero point zero zero nine,fifteen point six seven,2百分数的读法：先读基数词，再读百分号“%”(读作percent)。,5%读作five percent05%读作_200%读作_,zero point five percent,two hundred percent,3年代的读法为两位、两位地读。整百的后读hundred，整千的后读thousand，前常加“the year”。1937读作nineteen thirtyseven或：nineteen hundred and thirtyseven1900年读作nineteen hundred190
28、5年读作nineteen and(或o)five或：nineteen hundred and five 2000年读作the year two thousand,4表示公元后在年份前或后加AD/ ,eIdi/皆可，公元前一律在年份后加BC/ , bici/。表几十年代时，前加 the，后加s或s。,from 200 BC to 500 AD/AD 500从公元前200年到公元后500年in the 1960s或1960s(读作nineteen sixties) 二十世纪六十年代,5年、月、日的英语顺序为“月，日，年”。“日”用序数词读和写(有时也可用基数词)；“日”读在“月”前时要加读“of”
29、。July 7(th)，20052005年7月7日读作：July the seventh two thousand and five 或the seventh of July two thousand and five Today is Thursday，September 19th.今天星期四，9月19日。,7一些数学公式的读法：“加”用plus/and，“减”用minus， “乘”用times，“除”用divided by，动词多用单数，如：358读作：927读作：6530读作：842读作：,Three plus/and five is eight.Nine minus two is se
30、ven.Five times six is thirty.Eight divided by four is two.,1.Now，everybody，please turn to Page_and look at the_picture.AFifth；five BFive；fifth CFifth；fifth DFive；five,练一练,2.Do you have enough students to clean the laboratory?No, I think we need _students.Aanother Btwo othersCmore two Dtwo more,3.The
31、 government of Chongqing is building_cheap and good houses for the people.Athousand BthousandsCthousand of Dthousands of,4.Nowadays _of business letters are written in English.Atwo third Btwo thirdsCtwo three Dsecond three,5David, how old is your father this year?_.And we just had a special party fo
32、r his _ birthday last weekend.AFortieth；forty BForty；fortyCForty；fortieth DFortieth；fortieth,6Nearly _of the earth _covered by sea.Athree fourth; is Bthree fourths; isCthree fourth; are Dthree fourths; are,7.The number of the students in our school is about nine _. _ of them are boys.Ahundred; Two thirdsBhundred; Two thirdChundreds; Two thirdsDhundreds; Two third,Thank you！,
