中考数词专项导学案6页

1、课题：数词 课时：1课时 组名: 时间：_ 学生姓名：_ 班级：_ 数词专题 导学案【学习目标】1.掌握基数词的构成及其用法。2.掌握序数词的构成及其用法。3.了解其他数词的用法。 【中考考点】 1.基数词 2.序数词【学习指导】 问题探究法独学：1、如何读大数？ 比如765,987,364,237 87,546,364,321 843,657,805 2、单位词的用法？ 3、如何表示“在某人几十岁的时候” 4、如何表示年代 ？ 5、如何表示时间？ 6、基数词如何变序数词？ 7、冠词与序数词的连用？ 8、编号如房间号等表示法？ 9、年月日的表示法及读法？ 10、分数表示法及主谓一致？ 11、百

2、分数的表示法？ 12、数学公式表示法？ 对学、群学：一、基数词探究一：基数词的读法把下面的口诀补充完整，总结较大数字的读写方法。 【 口诀】 数字读写so easy，从右至左去分位。三位一体加逗号，thousand、million、billion读出来。千百位间_用，百十位间用“_”中。十个位间_，空位用“_” 应记清。如：1,234,007读作one million, two hundred and thirty-four thousand and seveneg: 5,991,892,725 five billion, nine hundred and ninety-one million

3、, eight hundred and ninety-two thousand, seven hundred and twenty-five. 80,563,371,461 探究二：单位词的用法hundred，thousand，million，billion等用在具体的数字后面时不能加 或 ；hundred，thousand，million，billion等前面没有具体的数字时通常加 或 。eg: eight thousand people八千人 thousands of people成千上万的人 巧记： 模糊数字俩有 （有of 有s） 具体数字俩无 （无of 无s）探究三：in + ones

4、 + “整十”的基数词复数，表示“在某人几十岁时”。 He invented many things in his .他在他二十几岁时他发明了很多东西。探究四：表示年代时，在年份的阿拉伯数字后面加s或s。eg： in the 1990s= in the 1990s 在二十世纪九十年代 探究五：时间的表达方式1、“整点”时，可用“基数词+oclock”，oclock也可省略 eg: 9：00 (oclock)。2、“非整点法 ”1）顺读法：即“先时后分”，直接用基数词读出。eg：4：10 four ten 9:50 _2)逆读法：即“先分后时” 分钟小于或等于30时，用“分钟数+past+钟点数

5、”形式。 eg：7：20 twenty past seven 8:05 _当分钟数=30时，可用half代替thirty. eg：10：30 thirty / half past ten 8:30_当分钟数=15时，可用fifteen表达,也可用a quarter表达。eg：6：15 a quarter past six = _ 分钟大于 30分钟时，用“ （60-分钟数+ to + （钟点数+1）”形式。eg：7：50 ten to eight 10:45 _ = _【中考真题再现】( ) Its 11:45. Yes, its _. (漳州市) A. fifteen past twelve

6、 B. fifteen from twelve C. a quarter past twelve D. a quarter to twelve探究六： “数字连词符+单数名词”或“数字连词符+单数名词连词符+形容词”构成复合形式作定语。 She is an chinese girl.她是一个十八岁的中国女孩。We have a holiday in October.在十月我们有一个七天的假期。注意：a ten-minute walk = ten minutes walk 步行10分钟的路程探究七：“基数词more”或“another基数词” 表示 “在原来的基础上增加的数量”。eg： I ne

7、ed 10 more days= I need days. 我需要另外的十天。探究八：基数词习惯用法 one and a half apples = one apple and a half 一个半苹果half an apple 半个苹果one or two apples= one apple or two 一俩个苹果二、序数词探究九 基数词变序数词完成下面的口诀，掌握基数词改为序数词的方法。 基变序,有规律,词尾要加th.一二三,特殊记，-th,从4起；见到ve变f，然后再加-th；8去 ,9去 ，然后再加-th；ty变作tie,然后再加th；若遇几十几,只变个位就可以.你能写出：第一 ，第

8、二 第三 第五 第八 第九 第十二 第二十 这几个序数词吗？探究十： 冠词与序数词1. The + 序数词 表示 the first lesson2. a/an +序数词 表示 She is going to try a third time.她准备再试一次(第三次？)。探究十一 ：年、月、日的表达 &世纪年代的表示方法(1)英语中年、月、日的排列顺序为：月-日-年（常用）或 日-月-年，日期和年之间，一般用逗号隔开。eg: 2008年5月1日： May 1, 2008 / May 1st , 2008 ； 1 May, 2008/ 1st May, 2008. 2013年4月8日 _/_=

9、_ / _(2）世纪年代的表示方法1) （在）20世纪 ( in ) the 20th century （在）21世纪_2) （在）1997年 （in ）1997 ( nineteen ninety seven ) （在）2013年_3) （在） 80年代 ( in ) the eighties （在）90年代_4) 在20世纪90年代 in the 1990s / 1990s 在20世纪70年代_【中考真题再现】( )1. The year “1999” should be read “ The year _”. A. nineteen and ninety-nine B. nineteen

10、 hundred and ninety-nine C. one thousand nine hundred and ninety-nine D. nineteen ninety-nine( ) 2. They moved to Beijing _. A. in 1980s B. in the 1980 C. in the 1980s D. on the 1980s探究十二：编号的表示法名词 + 基数词（此时名词和数词的第一个字母要大写）= the + 序数词+名词eg: 1）Lesson One = _ 第一课 2） the second page = _第二页注意；如果数字较大时，特别是房间

11、、页码、公交车号、电话号码等，多用“名词+基数词”形式。【中考真题再现】( )1. There is a wrong word in Line _. Where? In the _ line. A. Two; two B. Second; two C. Two; second D. Second; second( )2. Today we are going to learn _. Thats nice, Mr. Wang. A. Lesson Second B. the Lesson Two C. Lesson Two D. second lesson 探究十三：分数的表达方式1) 分子用_

12、，分母用_(子基母序)，分子大于1，分母用_数。eg: 1/3 one third 6/9 _注意: 12 用a / one half ( = one second ) ，14用a quarter (= one fourth ) eg: 3/4 _ = _2) 分数作主语时，谓语动词跟of后的名词单复数一致。eg: 1) Two thirds of the students _ (be) boys in Class 2) Half of her money _ (be) spent on clothes last month.【中考真题再现】( ) _ of the land in that

13、district _ covered with trees and grass. (常州) A. Two fifths; is B. Two fifth; are C. Two fifth; is D. Two fifths; are拓展：小数表达法 5.79 five point seven nine 4.78 百分数表达法 16% sixteen percent 18% 探究十四：其它重要表达方式的考法1、数学符号表达法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：Three plus/an

14、d five is eight.927读作：Nine minus two is seven.6530读作：Five times six is thirty.842读作：Eight divided by four is two.2、时间、距离、金钱数字名词做主语时谓语动词用单数 。 eg: Ten days is enough for the job. 【中考真题再现】 ( ) _ twenty minutes enough for you to finish the work? (巴中) A. Are B. Is C. Have D. Has组内小展示 班内大展示1. The governme

15、nt of Linyi is building _ cheap and good houses for the people. A. thousand B. thousands C. thousand of D. thousands of2. Did you know that the Garth is home to _ animals? A. millionB. millionsC. million ofD. millions of3. October is the _ (ten) month of the year. 4. Tom has just finished writing a

16、_ article. A. nine-hundred-words B. nine-hundreds-word C. nine-hundred-word D. nine-hundreds-words5. I dont believe that this _ boy can paint such a nice picture. A. five years old B. five-years-old C. five-year-old6. The action film has attracted millions of young people to the cinema.A. 130-minute

17、B. 130-minutesC. 130 minuteD.130 minutes7. The number of the students in our school is about nine _. _ of them are boys.A. hundred; Two thirds B. hundred; Two third C. hundreds; Two thirds D. hundreds; Two third8. About _of the students in Grade Nine this year were born in the_.A. three five; 1996.

18、B. three fifths; 1990s C. third fifth; 1997. D. third fifths; 1990s9. May is the _ month of a year.A. fifty B. fifteen C. fifth D. five10. Please turn to page _ and look at the _picture in this unit.A. twentieth; one B. twenty; one C. twentieth; first D. twenty; first11.Would you like to have _ appl

19、es? No, thank you. Ive had enough. A. other two B. another two C. more two D. two others 12. In order to finish the project, well have to work _ hours a day. A. more two B. two more C. two another13. its said that _ of the water around the world _ polluted.A. two third; hasB. two thirds; have C. two

20、 third; are D. two thirds; is14. Lindas mother looks young, but actually is in her _.A. sixties B. sixtieth C. sixty years old15. December is _ month of the year.A. twelve B. the twelfth C. the twelveth16“Food Safety” has become one of the hottest topics recently.Yeah, it receives _ Internet hits(点击

21、) a day. A. thousandsB. thousand of C. thousands of D. ten thousands17. The winner of the singing competition was a _ girl called Zhang Mei from China. A. 19-years-old B.19-year-old C. 19-year-olds.18. The earthquake in Yaan left _ people homeless. A. two thousand B. thousands of C. two thousands of

22、 D. two thousand of19. doctors are against H7N9 in China. A. Thousands B. A thousand of C. Thousands of20. Lincoln was born on _. A. February 12, 1809 B. 1809, February 12 C. 1809, 12 February D. February 1809, 1221. A _ boy can sing the English song very well. A. ten-year-old B. ten years old C. ten-year-old D. fifth years old22. The number 4,123 is read _. A.four thousand o