1、初三英語語法數詞數詞：定義：用來表示人或物的數量的名詞 分類：數詞分類：數詞有基數詞基數詞和序數詞序數詞兩種。 英語的數詞可以作句子的主語、賓語、表語和定語。基數詞：基數詞：表示數目的詞叫基數詞基數詞。英語中常用的基數詞有：1-oneone2-Two2-Two3-Three3-Three4-Four4-Four5-Five5-Five6-Six6-Six7-Seven7-Seven8-Eight8-Eight9-Nine9-Nine10-ten10-ten11-Eleven11-Eleven12-Twelve12-Twelve13-Thirteen13-Thirteen14-Fourteen1

2、4-Fourteen15-Fifteen15-Fifteen16-Sixteen16-Sixteen17-Seventeen17-Seventeen18-Eighteen18-Eighteen19-Nineteen19-Nineteen20-Twenty20-Twenty30-Thirty30-Thirty40-Forty40-Forty50-Fifty50-Fifty60-Sixty60-Sixty70-Seventy70-Seventy80-Eighty80-Eighty90-Ninety90-Ninety100-one(a) hundred100-one(a) hundred23-twe

3、nty-three23-twenty-three35-thirty-five35-thirty-five101-one hundred and one101-one hundred and one1000one(a) thousand,1000one(a) thousand,1000010000 ten thousand,100000 ten thousand,100000one one hundred thousand ,1000000hundred thousand ,1000000one one million,million,10000000ten million, 10000000t

4、en million, 100000000100000000one hundred million,one hundred million,108108one hundred and eight, one hundred and eight, 146146one hundred and forty-six, one hundred and forty-six, 500500five hundred , five hundred , 10011001one thousand and one, one thousand and one, 18131813one thousand eight hun

5、dred one thousand eight hundred and thirteen.and thirteen. 注意事項 (1)百位與十位之間要加andand；十萬位和萬位,億位和千萬位之間通常也要加andand。 (2)英語用千、百萬等單位計數,大數字從右向左看, 每隔三位劃一逗號,倒數第一個逗號之前要用thousandthousand,倒數第二個逗號之前要用millionmillion,倒數第三的逗號之前要用billionbillion表示。注意事項 (3) hundredhundred、 thousandthousand、 millionmillion作數詞時,不用復數,前面可以加

6、上one, one, two, two, 等其它數詞。用作名詞時復數表示“成上”,后面必須要有ofof,前面可以加上some,many,severalsome,many,several等詞。如：five hundredfive hundred(五百), hundreds hundreds ofof(成百上千的), ten thousandten thousand(一萬), thousands ofthousands of(成千上萬的), millions millions ofof(成百萬的)序序數詞：數詞：表示順序的數詞叫序數詞序數詞。 英語的序數詞基本變法： (1) 一般在基數詞后加tht

7、h, (2)-ve-ve結尾的改為-fth-fth, (3)-ty-ty結尾的改為-tieth-tieth, (4)熟記特殊詞。1stfirst21sttwenty-first2ndsecond20thtwentieth22ndt w e n t y -second3rdthird13ththirteenth30ththirtieth23rdtwenty-third4thfourth14thfourteenth40thfortieth5thfifth15thfifteenth50thfiftieth35ththirty-fifth6thsixth16thsixteenth60thsixtiet

8、h7thseventh17thseventeenth70thseventieth8theighth18theighteenth80theightieth9thninth19thnineteenth90thninetieth10thtenth100thone undredth11theleventh101stone hundred and first12thtwelfth1000th1000thone thousandth, one thousandth, 1000000th 1000000th one millionth, one millionth, 第第703703the seven hu

9、ndred and the seven hundred and third, third, 第第54805480the five thousand four the five thousand four hundred and eightieth.hundred and eightieth.注意事項 (1)兩位以上的序數詞僅個位數部分用序數詞,其余部分仍用基數詞。如：thirty-sixththirty-sixth, (2) 使用序數詞時一般加定冠詞the. the. 如：Im Im in in thethe third grade third grade. (3) 序數詞作“幾分之幾”講時,

10、有復數形式。如：1/5one fifth ; 2/3 two third1/5one fifth ; 2/3 two thirds s ; ; 4/7 four seventh4/7 four sevenths s ; 1/2 a half ; ; 1/2 a half ; 1/4a quarter ; 3/4 three quarter1/4a quarter ; 3/4 three quarters s ; ; 50% fifty hundredth50% fifty hundredths s ( fifty per ( fifty per cent).cent).數詞的用法：數詞的用法：

11、 1、表示年份：2002: twenty thousand 2002: twenty thousand and two ; 1976 : nineteen seventy-and two ; 1976 : nineteen seventy-six.six. 2、表示日期： 12月1日: Dec.1st Dec.1st或the the first of Decemberfirst of December；2002年11月8日: Nov. 8th, 2002.Nov. 8th, 2002. 3、表示時刻： 5 5：15 five fifteen15 five fifteen或a a quarter

12、 past five ; 8quarter past five ; 8：30 eight 30 eight thirtythirty或half past eight ; 10half past eight ; 10：45 ten 45 ten forty-fiveforty-five或a quarter to eleven.a quarter to eleven.數詞的用法：數詞的用法： 4、表示編號： 5、小數的讀法：5.7 five point sevenfive point seven, 0.16 zero point one sixzero point one six.數詞的用法：數詞的用法： 6、“半”的表達： 1/2halfhalf, 半小時half an hourhalf an hour, 1.5小時one and a one and a half hourshalf hours或one hour and a halfone hour and a half7 7、序數詞前面加、序數詞前面加thethe時時, ,表示順序表示順序, ,加加a/ana/an時時表示表示“再一、又一再一、又一”。如：。