【正文】 hrees.　他們三三兩兩的到達了。　　 c. 表示幾十歲；　　 d. 表示年代，用 in +the +數(shù)詞復數(shù)；　　 e. 在乘法運算的一種表示法里，如：3 x 5 = 15 Three fives is (are) fifteen. 半小時為half an hour, 半天為half a day, 半鎊為half a pound, 盡量避免用half a year, half a month, 要用six months, two weeks 或 fifteen days 要注意的是Half of the work is done Half of the books are sold. 當Half 作名詞時，其謂語動詞要看of后面的名詞而定。如名詞是不可數(shù)名詞則用單數(shù)謂語動詞，如是復數(shù)名詞時，則要用復數(shù)謂語動詞。要注意的是一個半的表達法，如：One and a half apples is left on the ，但謂語動詞則要用單數(shù)。 在句首的數(shù)字要用文字而不要用阿拉伯數(shù)字，如數(shù)字過大則應放于句中，用阿拉伯數(shù)字。如： There are 166 students playing on the ground.［誤］ 60 students are playing on the ground.［正］ Sixty students are playing on the ground.　　 ［答案］ A.加 and / plus 減 minus 乘 times 除 divide by初中英語數(shù)詞練習（二）( ) 1. Lincoln was born on ________. A. February 12, 1809 B. 1809, February 12 C. 1809, 12 February D. February 1809,12( ) 2. A _______ boy can sing the English song very well. A. tenyearold B. ten years old C. tenyearold D. fifth years old( ) 3. An hour later, _____ minister was sent(被發(fā)送) to see the “magic cloth” woven by those two men. A. two B. the second C. the two D. second( ) 4. Abraham Lincoln was _______ President （總統(tǒng)）of the United States. A. 16 B. the 16 C. 16th D. the 16th( ) 5. Do you think there is any room for us ________ ? A. two B. the two C. second D. the second( ) 6. How many students are there in your class? ________. A. Twenty nine B. Thirty and two C. Fortyfive D. fifties( ) 7. Which number is wrong? _______. A. Ninety B. Ninteen C. Ninth D. Nineteenth( ) 8. The People39。s Liberation Army was founded _______. A. on August 1, 1927 B. in 1927, 1 August C. on August 1st, 1927 D. in August 1, 1927( ) 9. The number 4,123 is read _______. A. four thousand one hundred and twentythree B. four thousand and one hundred twentythree C. four thousand and a hundred and twentythree D. four thousands a hundred and twentythree( ) 10. The old professor still works hard though he is _________. A. in his sixty B. in his sixties C. in sixties D. in the sixty( ) 11. This classroom is ________ ours. A. three times big as B. as three times big as C. three times as big as D. as big three times as( ) 12. The basketball team of our school ranks ________ in the match. A. three B. third C. the three D. the third( ) 13. Which is the car that he drives? It39。s ________. A. fifty two B. the fiftytwo cars C. the car fifty four D. the fiftyfourth car( ) 14. Which of the following is wrong? ________. A. He is a fifteenyearold boy. B. He is at the age of 15. C. He is a boy of 15. D. He is fifteen year old.( ) 15. Our school is not very big. There are only ________ students. A. nine hundreds of B. nine hundred C. nine hundreds D. nine hundred of( ) 16. How many new words are there in ________ lesson? There ar