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初中英语 个性化教案 数词专题

个性化教学辅导教案学科: 英语任课教师:授课时间:)姓名年级七性别男课题数词专项讲解总课时____第 6 课教学目标1、掌握数词的用法2、直击数词考点难点重点课堂教学过程课前检查作业完成情况:优□良□中□差□建议__________________________________________过程数词专项基数词: 表示人或事物数量多少的词.序数词: 表示人或事物的顺序的词. 往往和定冠词the连用.一. 基数词.1.基数词的读法.1)1---12 :one two three four five six seven eight nine ten eleven twelve2)13---19:词尾加-teen : thirteen fourteen fifteen sixteen seventeen eighteen nineteen3)20,30,40,50,60,70,80,90 : 逢十词尾加-ty : twenty thirty forty fifty sixty seventy eighty ninety4) 21----99:在十位与个位之间加连字符构成.21--- twenty-one 99---ninety-nine5)101---999 : 先说几百, 再加and ,再加末尾两位数或个位数.101---one hundred and one 238----two hundred and thirty-eight6) 1000以上的数:先将数字从右往左数,每三位数用一个逗号隔开, 从右往左第一个逗号表示“千”读thousand 第二个逗号表示“百万”读million 第三个逗号表示“十亿”读billion 英语中无"万"这个词,我们可以用"几十个千(thousand)"表示几万,"几百个千(thousand)"表示"几十万"。

18,657,421---eighteen million , six hundred and fifty-seven thousand , four hundred and twenty-one.2,510=two thousand five hundred and ten;84,296=eighty-four thousand two hundred and ninety-six;274,350=two hundred and seventy-four thousand three hundred and fifty。

【巧学妙记】巧记100以内的基数词基数词不难记,找清规律很容易;十二以内词各异,十三数到十九去,后加teen莫忘记;二十、三十至九十,正式之后有-ty;要说“几十几”,中间“-”别丢弃;a hundred是“一百”,请你记住莫大意。

二. 序数词基数词变序数词口诀: 基变序,有规律,词尾要加th .一二三,特殊记,词尾分别tdd(first second third )八去t , 九去e, ve要用f替. ty变作tie,再加th莫忘记.若遇几十几,只变个位就可以.1)英语序数词的第一至第三需特殊记忆。

first(1st), second(2nd), third(3rd)2)序数词中第四至第十九都是在基数词后加th, 但要注意第5、8、9、12的拼法:fifth、eighth、ninth、twelfth.3)序数词中第20至第90的十的倍数是将基数词词尾的y改为i, 再加-eth.twenty twentieth (第二十)eighty eightieth (第八十4)十以上的基数词变成序数词时,把个位数变成序数词即可,十位数不变。

thirty-two thirty-second (第三十二)seventy-five seventy-fifth (第七十五)5). 序数词的缩写形式,在阿拉伯数字后加上序数词的最后两个字母构成。

如:fifth 5th second 2nd三. 数词的应用.1. 表编号.结构: 名词(首字母要大写) + 基数词= the +序数词+名词Lesson One = the first lesson注:有些编号,一般仅用第一种表达法。

Room 101 101号房间2. 序数词前一般加定冠词the 但序数词前与不定冠词a /an 连用时,表示“又一,再一”Mr Brown has a second car. 布朗先生另外还有一辆车。

He has tried a second time. 他又尝试了一次。

You’ve done it three times .Why not try ____fourth time ?A.aB.anC.theD./三葵教育您值得信赖的专业个性化辅导机构3 3. 基数词的复数形式表示年代和年龄1)表示年代: in the + 年份的复数 在几世纪几十年代.在十九世纪七十年代. _in the 1870s in the 1970s 在20世纪70年代2)表年龄: in one’s + 整十的复数 表示在某人几十岁时在他三十岁时: ________in his thirties___________.4. hundred / thousand /million /billion1).若hundred / thousand /million /billion 前有基数词时,其后不加s,也不加of .若没有时既加s 也要带of .three hundred seats 三百个座位hundreds of 数以百计的,成百上千的thousands of 数以千计的,成千上万的millions of 数百万的 billions of 数十亿的Every year _______ visitors come to China .There are two _______ students in our school .A.thousandB.thousandsC.thousands ofD.thousand of5. 几个半的表达法:基数词 + and + a half +名词复数 = 基数词 +名词(单数/复数) +and +a halftwo and a half hours = two hours and a half6. 时刻表达法:1)整点: 基数词 + o’clock2)几点几分: A).直接读法: 先读小时 ,后读分钟3:25 ---- three twenty-fiveB).间接读法:a)≤30分钟. 分钟+ past + 小时3:25 ----twenty-five past threeb)>30分钟. ( 60-分钟 )+ to + (小时数+1)3:55 ----- five to fourc) 30 分钟 = half 15分钟=a quarter 45分钟= three quarters3:30 ---half past three 3:15----a quarter past three 3:45 ----a quarter to four日常生活中的时间读法常常简化,直接按基数词的顺序读。

7:05-seven o five ;7:15- seven fifteen7. 日期表达法:结构: 1).月 日,年 (日用序数词,年用基数词)注: 年份的读法: 先读前两位数,再读后两位数. 读日时要加the.2007年3月21日.--- March the twenty-first , two thousand and seven.( March 21th ,2007)1900---nineteen hundred 2008---two thousand eight 1999年-nineteen ninety-nine ; 2000-two thousand ; 1905-nineteen o five ;2).日月年(the +序数词+of +月, 年)2007年3月21日---the twenty-first of March ,two thousand and seven. 习惯写作:March 21th ,2007 1998年6月8日写作:June 8,1998;读作:June the eighth,nineteen ninety-eight或the eighth of June,nineteen ninety-eight。

2003年3月17日,星期一Monday, March the 17th, 2003.8. 分数词的表达法:1).结构: a).分子用基数词,分母用序数词. b).当分子大于1时,分母加复数.3/4--- three fourths (three-fourths)2).注意:a).分数词的几种特殊形式.1/3—one third = a third 1/4—one fourth = a quarter1/2—one second = a half 3/4—three fourths = three quartersb).分数词作主语时, 谓语动词根据分数词后面的名词来确定.Two fifths of the milk ______(be ) drunk by Tom .One third of the students _______(be )girls .9.表示百分数5℅:five percent,0.8℅ zero point eight percent.分数、百分数与主谓一致分数、百分数的考查往往和主谓一致相联系。

当分数、百分数修饰可数名词的复数时,谓语动词用复数形式;当分数、百分数修饰不可数名词时,谓语动词用单数形式。

如:Eighty percent of the students in our school come from Henan.我们学校百分之八十的学生来自河南。

Three fourths of the students in my class are interested in English.我们班四分之三的学生对英语感兴趣。

Two thirds of the water on the earth is sea water.地球上三分之二的水是海水。

10. 基数词常和一些计量类名词“单数”用“一”连在一起,构成复合形容词,修饰名词。

如:A twelve-year-old boy 一个十二岁的男孩 a five-mile race 一次五英里的赛跑11、表示有小数的词用基数词。

5.5 five point five12.135 twelve point one three five三葵教育您值得信赖的专业个性化辅导机构5 课堂检验题:【2013益阳】1. -How old is your daughter ?- . We had a special party for her party yesterday .A. Nine , nine.B. Nine , ninth .C. Ninth , ninth .【2013黄石】2. It’s said that ______ of the water around the world ______ polluted.A. two third; hasB. two thirds; haveC. two third; areD. two thirds; is【2013雅安】3. We planted trees last year.A. hundreds ofB. hundred ofC. five hundredsD. five hundred of【2013恩施】4. Linda’s mother looks young, but actually is in her ________.A.sixtiesB.sixtiethC.sixty years old【2013湘潭】4.December is ___________ month of the year.A.twelveB.the twelfthC.the twelveth【2013牡丹江】5._______ of the students in our school ______girls.A. Two three, areB. Two thirds, isC. Two thirds, are【2013东营】6. On February 25, 2013, Li An, a Chinese director, won the best director again. It is his time to win an “Oscar”.A. firstB. threeC. twiceD. s econd 【2013宜宾】7. —“Food Safety” has become one of the hottest topics recently.—Yeah, it receives __________ Internet hits(点击) a day. A. thousands B. thousand of C. thousands of D. ten thousands【2013贵阳】8. The winner of the singing competition was a ____ girl called Zhang Mei from China.A. 19-ye ars-oldB.19-year-oldC. 19-year-olds.【2013阜康】9. Can you imagine what life will be like in ______ time? 在20年的时间A. 20 years’B. 20 year’sC. 20-years’D. 20-year课堂检测听课及知识掌握情况反馈_________________________________________________________。

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