中考英語語法精講例析 數詞
(二) 正誤辨析
［誤］ 1107 should be read as a thousand a hundred as seven.
［正］ 1107 should be read as one thousand one hundred and seven.
［析］ 在讀數字時，如：and前只有百或千時，用one hundred/ one thousand 還是a hundred /a thousand全是可以的。但如果文有百又有千時，則只能用one不要用a。 如果沒有and時，如：1100也只能讀作one thousand one hundred 或eleven hundred.
［誤］ i drove about half mile.
［正］ i drove about half a mile.
［析］ 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。如名詞是不可數名詞則用單數謂語動詞，如是復數名詞時，則要用復數謂語動詞。要注意的是一個半的表達法，如：one and a half apples is left on the table.其名詞要用復數，但謂語動詞則要用單數。
［誤］ 60 students are playing on the ground.
［正］ sixty students are playing on the ground.
［析］ 在句首的數字要用文字而不要用阿拉伯數字，如數字過大則應放于句中，用阿拉伯數字。如： there are 166 students playing on the ground.
［誤］ he became famous around fifty years old.
［正］ he became famous in his fifties.
［析］ in his fifties 50多歲時，而in the fiflies 在50年代。
［誤］ there are about two thousands workers in our factory.
［正］ there are about two thousand workers in our factory
［析］ 幾千，幾百的表達法是基數詞加thousand或加hundred,而且均不要加s。這樣的單位還有dozen(打)， score (20年)等。
［誤］ in the morning there are hundred of old people walking in the park.
［正］ in the morning there are hundreds of old people walking in the park.
［析］ 當表達數百，數千時，要用hundreds of和thousands of 這一結構。
［誤］ the class begins at eight a. m.
［正］ the class begins at 8 a. m.
［析］ 與符號或與縮寫的字母連用時一定要用數字，如：43%， 67, no.2…
［誤］ twofifth of the books are sold out.
［正］ twofifths of the books are sold out.
［析］ 分數表示法，分子用基數詞，分母用序數詞，但分子大于1時，分母要在序數詞后加s。
［誤］ tom was born on july eighteen.
［正］ tom was born on july eighteenth.
［析］ 月日的表達法有美語和英語兩種。 美語 july 18 讀作 july eighteenth 英語 july 18th 讀作 july the eighteenth
［誤］ i'll go to school at 7∶30 a. m. in the morning.
［正］ i'll go to school at 7∶30 a. m/ at 7∶30 in the morning.
［析］ a. m 即表達在早上之意，不要再用in the morning.
［誤］ the film will begin at three quarters past one.