专题3 数词朝歌镇中朝歌镇中 何晓燕何晓燕 2012.05. 10数数 词词基数词基数词序数词序数词分数分数数量数量顺序顺序几分之几几分之几教学目标：教学目标： 1. 知识目标：理解数词的概念及用法。知识目标：理解数词的概念及用法。 2. 能力目标：掌握常见数词的表达法。能力目标：掌握常见数词的表达法。 3. 情感目标：培养学生生活中时时处处用数词自然性、情感目标：培养学生生活中时时处处用数词自然性、 习惯性，培养学生学习英语的强烈兴趣，习惯性，培养学生学习英语的强烈兴趣， 乐于参加各种活动的积极情感。乐于参加各种活动的积极情感。教学重点教学重点： 基数词、序数词、分数的表达法。基数词、序数词、分数的表达法。教学难点教学难点： 基数词转化为序数词基数词转化为序数词,分数的构成分数的构成,数词在生数词在生 活中的应用活中的应用,尤其是表示确切数字和不确切尤其是表示确切数字和不确切数数 字的用法。字的用法。1.表示一个具体数字时，hundred, thousand, million不用复数eg. Our country has a population of 1,300 million people.There are three thousand students in our school.2.基数词的复数形式表示基数词的复数形式表示大量的不确定的数目大量的不确定的数目，如，如 hundreds of + 可数名词复数可数名词复数 数以百计的数以百计的 thousands of + 可数名词复数可数名词复数 数以千计的数以千计的 hundreds of birds, thousands of stars 3. 表示“十”的数词的复数形式可用来表示人的岁数或年代，例如：He is in his early thirtiesHe died still in his forties This took place in 1930s考点直击：考点直击：4. “another+基数词+名词复数 ”或“基数词+more+名词”表示在已有基础上再增加一定的数量。eg. He ate another 2 cakes.5. “基数词+名词“构成的复合形容词作定语，其中的名词用复数。eg. a two-week holiday an eight-year-old girl6. 序数词主要用作定语，前面要加定冠词，例如：The first truck is carrying a foot baskets John lives on the fifteenth floor7.序数词有时前面可加不定冠词来表示“再一”，“又一”这样的意思，例如：Well have to do it a second time Shall I ask him a third time？ When I sat down，a fourth man rose to speak8.表示分数时，分子用基数词表示，分母用序数词表示。分子大于1时，分母加-s。例如：three fourths, one second, two fifthseg: Two thirds of the teachers in our school are women teachers. Three quarters of the worlds books and newspapers are written in English.1.Jackie Chan has donated_ dollars to charity. He is an example to us all. (湖北黄冈) A. thousand B. thousands C. thousand of D. thousands of2.Water covers most parts of the earth. Yes, about _ of the earth is covered with water. (福建泉州) A. one fourth B. half C. three quarters3. “ I want my leg ! I want to run! I want to jump!” a_ girl cried in the hospital in Libya(利比亚). (云南八市) A. 5- year- old B. 5- year- old C. 5 year old D. 5- years- old4. Tom has just finished writing a _ article. (四川资阳) A. nine-hundred-words B. nine-hundreds-word C. nine-hundred-word D. nine-hundreds-words 5. We are organizing a lot of activities to celebrate the _ birthday of the Communist Party of China these months. (云南昆明) A. nineteen B. ninety C. nineteenth D. ninetiethCDACD6. Has Mary been back? - Not yet. She will come back_ the evening of June_. (广东梅州) A. at, first B. to, thirtieth C. on, the twelfth D. on, the nineteen7.Last year, I visited a chemical factory in Baise. There were about _ workers in it. (广西百色) A. six thousands B. six thousand C. six thousands of D. six thousand of8. Which is the biggest number of the four? _. ( 贵州毕节) A. One-third B. Two-thirds C.A half D. A quarterSeptember is _ month of the year. (四川雅安) A. ninth B. nine C. the nine D. the ninth10. More than nine_ students are doing sports now. (重庆江津) A. hundreds B. hundred of C. hundred D. hundreds of11. The teacher said that_ of the boys would take part in the talent show. ( 新疆乌鲁木齐) A. three five B. three fives C. thirds fifths D. three fifthsCBBDCD12. David, how old is your father this year? _. And we just had a special party for his _ birthday last weekend. ( 贵州安徽) A. Fortieth; forty B. Forty; forty C. Forty; fortieth D. Fortieth; fortieth13. My uncle bought me an iPhone for my _ birthday. (湖北黄石) A. twelve B. twelfth C. the twelve D. the twelfth14. There are over _ students in their school. (四川泸州) A. hundreds B. nine hundreds C. hundreds of D. nine hundred15.How amazing the noodle is ! Yes, it is_, and breaks the Guinness World Record as the longest handmade noodle. ( 江苏连云港) A. 1704-meter-long B. 1704-meters-long C. 1704 meter long D. 1704 meters long16. More than _ of children took part in activities last month. (海南三亚) A. two thirds B. thirds second C. second three D. two third17. If a=4, b=5, whats the answer to the question “ a+ 2ab+ 1=?” - _. ( 四川达州) A. Forty- fifth B. Forty- five C. Twenty- three D. One hundred and twenty- oneCBDDAB18. What would you like , sir ? _. ( 甘肃定西) A. Two pop B. Two bottles pop C. Two bottles of pop D. Two bottle of pop19. Now , everybody, please turn to Page_ and look at the _ picture. ( 山东滨州) A. Fifth, five B. Five, fifth C. Fifth, fifth D. Five, five20. You can see_ if you go out at night. ( 广东河源) A. million stars B. thousand of stars C. hundreds stars D. millions of stars About _ of the students in our class were born in the _. (河南郑州） A. two-thirds , 1980s B. two-thirds , 1980 C. two-third , 1980s D. two-third, 1980- Excuse me. What does the number 20,135 read? - It reads_. A. twenty thousands one hundred and thirty- five B. twenty thousand one hundred thirty- five C. twenty thousand one hundred and thirty- five D. twenty thousands one hundred and thirty- fiveCBDAC