数词数词复习复习数词数词的构成的构成基基数词数词序数词序数词112有各自独立的形式。有各自独立的形式。13-19都是相对应都是相对应39加上加上teen构成，特殊拼写的构成，特殊拼写的词有词有thirteen, fifteen, eighteen。2090都以都以-ty结尾，特殊拼写的有结尾，特殊拼写的有twenty, thirty,forty, eighty。2199,整数十位数各位数，中间有整数十位数各位数，中间有“”。百位数，由百位数百位数，由百位数and+两位数组成。两位数组成。13分别为分别为first,second,third 。419都是在后面加上都是在后面加上th,特殊的有特殊的有fifth,eighth, ninth,twelfth。2090把把y变成变成ie然后加然后加th,如如twentieth。2199的序数词变后面的各位数。的序数词变后面的各位数。序数词可以用缩写，如序数词可以用缩写，如1st, 2ed, 3rd,4th基本用法：基本用法：1.基数词：表示精确数字时，基数词：表示精确数字时，hundred,thousand,million,billion后面后面都不用变化。但是在表示几百，几千等模糊概念时，这些词后面要都不用变化。但是在表示几百，几千等模糊概念时，这些词后面要加上加上s和和of,如：如：hundreds of,而且前面可以加上而且前面可以加上many,tens of等表示等表示不确切的词，注意不确切的词，注意several,some是表示确切数字的词：是表示确切数字的词：several hundred2.数词一般是用作复数的，但是特殊情况也有复数数词一般是用作复数的，但是特殊情况也有复数的用的用a.表表示在几示在几十岁十岁：in the forties-41-49b.表示年代：表示年代：in the 1920s3.基数词兼有名词和形容词的功能：基数词兼有名词和形容词的功能：Nine of them are from Greece.They work forty hours a day.4.序数词主要用作定语。一般要加序数词主要用作定语。一般要加the.Our classroom is on the third floor.The first part of the story is not interesting.in the first place 7. 序数词前面一般要加序数词前面一般要加the,但是也有不加的情况，这个时候但是也有不加的情况，这个时候表表示示“又一，再一又一，再一”的意思。的意思。 They had a second child in 1988. 上上面的面的a second 可以用可以用another 代替。代替。6.日期日期，分，分数的表示数的表示法。法。 on May 5th,2008 one third, three fourths5.基数词也能表示顺序，如书刊的卷、章、节、页的数目，住基数词也能表示顺序，如书刊的卷、章、节、页的数目，住所所、房、房间、教室、电话号码等间、教室、电话号码等等。也可用序数词表示。等。也可用序数词表示。 Section Six, Page Eight, Room 304 the six section, the eight page, the 304th roomExercises:1.Is there any food for us _ ?A. tenB. tenthC. the tenthD. the ten 2.The bike cost me _ yuan.Afive hundred forty Bfive hundreds fourtyCfive hundred and forty Dfive hundred fourty 3.“Which lesson are you studying now?”-“_”A. The lesson six B. Sixth lessonC. Lesson Six D. Lesson sixth 4.The has written a _ compositionAthree-hundred-word Bthree hundred wordsCthree hundreds words Dthree hundreds word 5.She was born on _A A1986, March 9 BMarch 9, 1986C1986, 9 March DMarch nine, 1986 ACBCA6. We have finished reading _ units.Athe first twoBfirst twoCthe second Dtwo first 7. My telephone number is _Aeighty eight two forty four zero nineBeight eight two double four O nineCeighty eight two four four zero nineDeight eight two four four zero and nine 8. Every day the old woman sits here for _.A. one and half hourB. one and a half hourC. one and half hours D. one and a half hours 9. Mr Green Will have _ holiday very soon.A. two months B. two monthC. a two-months D. a two-month 10. Mary is_girl.A. an 8 year oldB. 8-years-oldC. the 8 years old D. an 8-year-old ABDDD11. -What day is today?- -_.-A. June 9. B. TuesdayC. It is hot. D. Its fine. 12. That magnificent _ pyramid was built by the Egyptian people.A. nine-centuries-old B. nine-centurys-oldC. nine century old D. nine-century-old13. -Whats the date today?-_-.A. Its Saturday B. Its JulyC. Its fineD. Its July 1514. -What time do you get up every day?-_-.A. Its seven oclock B. Seven oclock timeC. At seven D. On sevenBDDC15.-Good morning ,madam. Can I help you? -Sure, Id like _for cooking vegetables. A. two cups of tea B. three pieces of bread C. five kilos of oil16.Nearly _of the earth_ covered by sea. A. three fourth; is B. three fourths; is C. three fourth; are D. three fourths; are17. The _World Table Tennis Championship began _the morning of May 25, 2010 _ Moscow, Russia. A. Fifty; in; in B. Fiftieth; on; in C. Fiftieth; in; on D. Fifty; on; in18. Fathers Day is on _ Sunday of June. A. three B. third C. the third19.A war took place in_. A. the 1720s B. 1720s C. 1720s D. the 172020. About _ of the workers in the factory were born in the _.A. two-thirds; 1970 B. two-thirds; 1970sC. two-third; 1970 D. two-third; 197021.-Sandy, our son is 9 years old tomorrow. -Oh, yes. We should have a party for his _ birthday. A. nine B. ninth C. the ninth22.The old man began to learn to drive a car at the age of _ . A. sixty B. the sixtieth C. sixty years old D. sixties 23.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 third24. It is reported that _ people in the world are suffering from the H1N1 flu. A. several thousands of B. ten thousands C. thousands of D. thousands25. The work is too difficult for Mr. Zhu to finish in a week. He needs _ days. A. more two B. two more C. two another D. another more26._ years ago, very large animals called dinosaurs _ in some areas of the world. A. Many million; have been living B. Million; had lived C. Several millions of; are alive D. Millions of; lived