四. 在科技文章中,数字频繁出现,用阿拉伯数字比用单词陈述更有利。 1 n# } `' F0 v/ a. B7 p* uThe new engine has a capacity of 4.3 litres and a power output of 153 kilowatts at 4400 revolutions per minute. 这台新发动机的容积为4.3升,转速为每分钟4400转,时输出功率是153千瓦。 / `+ L7 ]. N2 K* c7 [$ a/ fWe know that the weight of a cubic foot of air at 0?C and 76cm,pressure is 0.08l pound, or 12 cubic feet of air weigh a pound. 我们知道,1立方英尺的空气在0摄氏度和760毫米汞柱压力下,重量是0.81磅,也就是说12立方英尺空气的重量是1磅。 ! w# u( H/ `* S* q* v
五. 句首不用阿拉伯数字,句末要尽量避免用阿拉伯数字。 1 f$ j2 r* J4 e7 W1 T! W. o1. 4th July is an important date in American history. * O6 l/ H6 M6 a3 J
7月4日是美国历史很重要的日子. 来自www.Examw.com( v ?" T: M9 H0 T1 k
应该写成The fourth of July... ) M' e' F% L/ L1 h5 |) E9 c1 h
2. 19 couples took part in the ballroom dancing competition. * t+ ?* P5 W* G$ `
19对选手参加了交际舞比赛。 / R) O+ V% X7 \' F. @应改写成:Nineteen couples took... # j$ Z4 G; \! {8 y1 I+ v& F$ W' k: W
3. 60% profit was a reported. ; A- o& J& \9 I H: D
据报道有60%的利润。 t# D! P7 a: R0 m" @4 [0 U应改写成:Sixty per cent profit… - p" ~# I4 e8 L% N, L4. 1345 kilograms force was applied at the center point of the bar. 0 t2 f" _/ z+ [: U8 U8 Y试验时,在杆的中点加了1345公斤力。 : ]: x8 u3 ~. z6 r* _3 Q6 P& I可改成When tested, a force of l345 kg was applied... 0 z0 Z5 z- f5 }六. 遇到分数,可用带连字符的单词表示。 0 b1 H O) H& P6 u2 f# x/ PAt 1east two-thirds of the class have had colds. 这个班至少有三分之二的学生患重感冒。 & O- _+ n) N& PNitrogen forms about four-fifths of the atmosphere. 氮约占大气的五分之四。