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单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,数词,一、房间、书刊、汽车、电话等号码,1房间,Room 106=room one o six,第106号房间,2书刊,Part 2=part two(the second part),第二部分,Lesson Ten=the tenth lesson,第十课,Page 127=page one two seven,第127页,Chapter Four=the fourth chapter,第四章,Section Twenty-one the twenty-first section,3汽车,Bus No.406,4电话,4729646,four seven two nine six four six 2822886=two eight double two double eight six,二、年、月、日、星期、钟点表示方法,1年前面用介词,in,(in)1961,读作(,in)nineteen sixty-one（,在）1961年,(,in)1800,读作(,in)eighteen hundred（,在）1800年,(,in)1909,读作(,in)nineteen and nine（,在）1909年,(,in)1990s,读作(,in)the nineteen nineties（,在）20世纪90年代,(,in)2000,读作(,in)two thousand（,在）2000年,(,in)2001,读作(,in)twenty and o one（,在）2001年,2月前面用介词,in，,月份头一个字母须大写，后附有缩写形式,(,in)January Jan.（,在）一月,(,in)February Feb.（,在）二月,(,in)March Mar.（,在）三月,(,in)April Apr.（,在）四月,(,in)May May（,在）五月,(,in)June June（,在）六月,(,in)July July（,在）七月,(,in)August Aug.（,在）八月,(,in)September Sept.（,在）九月,(,in)October Oct.（,在）十月,(,in)November Nov.（,在）十一月,(,in)December,DeC,（,在）十二月,3日前面用介词,on，,用序数词（前面加,the）,表示“某日”,(,on)the first,一日,(,on)the eighth,八日,a）,某个节日前用,on,(on)the first of January,或(,on)January(the)first,元旦（一月一日）,(,on)the twenty-fifth of December,或(,on)December(the)twenty-fifth,十二月二十五日 圣诞节,b）,某年、某月前用,in,in October，1965（,读作,in October，nineteen,sixtyfive,）1965,年 10月,c）,某年、某月、某日前用,on,on October 29，1990（,读作,on October the twenty-ninth,nineteen ninety）,on October 1，1949（,读作,on October the first,nineteen forty-nine）,4星期前面用介词,on，,星期头一个字母要大写,(,on)Monday （,在）星期一,(,on)Tuesday（,在）星期二,(,on)Wednesday（,在）星期三,(,on)Thursday（,在）星期四,(,on)Friday（,在）星期五,(,on),Sturday,（,在）星期六,(,on)Sunday（,在）星期日,5钟点通常前面用介词,at,David gets up at six oclock in the morning.,戴维早晨六点起床。,We finish our,wotk,at five(oclock).oclock,是,of(the)clock,的略语 我们五点完成工作。,6“几点几分”的表示方法,1）用介词,past,或,after,表示“几点过几分”，但分钟须在半小时内（包括半小时）。如：,It is five past seven.,现在是七点过五分。,It is a quarter past two.,现在是二点一刻。,It is half past ten.,现在是十点半。,It is few minutes after two.,现在是两点过几分。,2）用介词,to,表示“几点差几分”，但分钟必须在半小时以上（不包括半小时）。如：,six to ten,差六分十点,a quarter to nine,差一刻九点,twenty-eight to eleven,差二十八分十一点,也可以直接读时间。如：,9:25读作,nine,twemy,-five,12:30,读作,twelve thirty,8:30 A m.=eight thirty Am.,上午八点三十分,the 4:15 p.m.flightthe four fifteen p.m.flight,下午四点十五分航班,7表示“时间的一定点”用,at,at noon,在中午，,at daybreak,在天刚亮的时候，,atmidnight,在半夜,8表示“特定的时，日”用,on,on time,准时，,on the morning of tenth（,读作,on the morning of the tenth）,在十日早上，,on the evening of Saturday,在星期六的晚上,9表示不定的某日白天、上午、下午、晚等用“,in”，,但,night,则必须用“,at”,in the daytime,在白天，,in the morning,在早上，,at night,在夜里,五、分数、小数和百分数的读法,1分数词(,fractional numeral),由基数词和序数词组合而成，分子用基数词表示，分母用序数词表示，除了分子为1的情况外，序数词一般用复数形式。,1/2-,one second；a(one)half,二分之一，一半,1/3-,a(one)third,三分之一,1/4-,a(one)fourth;a(one)quarter,四分之一,2/3-,two-thirds,三分之二,3/4-,three-fourths;three quarters,四分之三,25/100-,twenty-five hundredths,百分之二十五,2小数词(,decimal fractional),小数点读作,ponit,，,其后的数词分开来一个一个地读，0可读作,zero（,或,nought,），,也可读作,ou,。,如,0.2-,point two;o,ou,point two;,nought,(zero)point two,零点二,0.03,o,ou,point o,ou,three;,nought,(zero),point,nought,(zero)three,零点零三,1.19-,one point one nine,一点一九,13.470-,one three point four seven o,ou,/thirteen point four seven o,ou,十三点四七零,3百分数,读百分数时，只要在基数词或小数词之后加上,percent,即可。如：,25-,twenty-five per cent,8-eight per cent,0.5-o,ou,point five percent,0.16-(,nought,zero)point one six per cent,六、数量增加的表示及译法,1,increase(rise,grow,go up),表示数量的增加,increase(rise)5 times,增加四倍（为原来的五倍,increase(rise)30,增长30,increase(rise)by 30,增长 30,The new production-line increases efficiency by 20 per cent.,这条新生产线使效率提高百分之二十。,The population has increased by 100,000 to 30,000,000.,人口增加了十万，共为三千万。,As compared with last year,the output goes up 5 times.,与去年相比，产量增长五倍。,The production of TV sets has been increased by 6 times since 1985 1985,年以来电视产量增加了6倍,2,double(twice),n times,表示倍数的增加,double(twice),为两倍，增加一倍，翻一番,n times,为,n,倍，增加,n-1,倍,3用法及译法,The production is now double what it was.,目前的产量是过去的两倍。,In 1999,the production doubled.1999,年产量翻了一番。,Robert drove twice the distance from New York to Huston.,罗伯特驾车驶过从纽约到休斯顿两倍那么远的距离。,4用,more(higher,better)than,表示数量的增加,The school used to have boys only,but it now has both boys and girls with the number of girls more than15 per cent.,这所学校曾经只有男学生，而现在这所学校既有男学生也有女学生，女生人数超过15。,The level of our national education is hundreds of times higher now than before liberation.,我国现在的教育水平已是解放前的几百倍。（或现在我国的教育水平比解放前提高了几百倍。）,The sun is thousands of times larger than the earth.,太阳的大小是地球的几千倍（或：太阳比地球大几千倍。）,5用,as much(many,long,fast)as,表示数量的增加,6,times as much as,六倍那么多，多五倍,half as long as,一半那么长,30,as heavy as,百分之三十那么重,one fourth as great as,四分之一那么大,This bridge is twice as long as that one.,这座桥长是那座桥的二倍。,The power of this engine is three fourths as great as the power of,thst,one.,The big stone is nearly 10 times as heavy as the small one.,这块大石头的重量几乎是那块小的十倍。,七、数量减少的表示及译法,reduce to 10,降到10，减少90,reduce by 20,减少 20（只有原来的80）,fall by 15,下降 15,drop by 30,下降 30,cut(cost)26,降低（成本）26,shorten4 times,使缩短为原来四分之一，缩短四分之三,n times less,是的,n,分之一,twice thinner,厚度只及一半,The birth rate in this area has dropped by 40 since 1979,自1979从年以来这个地区
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