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3.其他数字表示法
小数的小数点读作point，零读作o[u]或zero,小数点后面的数字按个位基数词依次读出。分数分子用基数词，分母用序数词，当分子大于1 时，分数要在序数词上加s，但1/2用one half, 1/4 用a quarter. 1/3 读作one third而 2/3 读作two thirds。 百分数(%)，读作per cent (percent),但不论是多少均用作单数形式不能加s。表示日期有两种说法和四种写法，如：2月1号英语表达法为：the first of February而美语为February (the) first,但其书写上可有四种写法①February 1 ②February 1st ③1st February ④1/2。 倍数的讲法有所不同。两倍用twice,而三倍以上用序数词加times,如：He has three times as many books as I have.
(二)正误辨析
[误] 1107 should be read as a thousand a hundred as seven.
[正] 1107 should be read as one thousand one hundred and seven.
[析] 在读数字时，如：and前只有百或千时，用one hundred/ one thousand 还是a hundred /a thousand全是可以的。但如果文有百又有千时，则只能用one不要用a。 如果没有and时，如：1100也只能读作one thousand one hundred 或eleven hundred.
[误] I drove about half mile.
[正] I drove about half a mile.
[析] 半小时为half an hour, 半天为half a day, 半镑为half a pound, 尽量避免用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. 当Half 作名词时，其谓语动词要看of后面的名词而定。如名词是不可数名词则用单数谓语动词，如是复数名词时，则要用复数谓语动词。要注意的是一个半的表达法， 如：One and a half apples is left on the table.其名词要用复数，但谓语动词则要用单数。
[误] 60 students are playing on the ground.
[正] Sixty students are playing on the ground.
[析] 在句首的数字要用文字而不要用阿拉伯数字，如数字过大则应放于句中，用阿拉伯数字。如： There are 166 students playing on the ground.
[误] He became famous around fifty years old.
[正] He became famous in his fifties.
[析] in his fifties 50多岁时，而in the fiflies 在50年代。
[误] There are about two thousands workers in our factory.
[正] There are about two thousand workers in our factory.
[析] 几千，几百的表达法是基数词加thousand或加hundred,而且均不要加s。这样的单位还有dozen(打)， score (20年)等。
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