英语倍数的表达法省公共课一等奖全国赛课获奖课件.pptx

英语倍数表示方法英语倍数表示方法英语倍数表示方法英语倍数表示方法“A“A 是是 B N B N 倍倍长长”“A“A 比比 B B 长长N N 倍倍”“A“A 长度长度是是 B N B N 倍倍”第1页 用英语表示用英语表示:“A 是是 B N 倍倍长长（宽，高，大，重等宽，高，大，重等）”“A 比比 B 长长（宽，高，大，重宽，高，大，重等）等）N 倍倍”A 长度长度（宽度，高度，大小，重量宽度，高度，大小，重量等）是等）是 B N 倍倍，可用以下几个句型可用以下几个句型:第2页 1.A+be+倍数倍数+as+计量形容词原级计量形容词原级+as+B.This tree is three times as tall as that one.这棵树是那棵树三倍这棵树是那棵树三倍高高。His father is twice as old as he.他父亲年纪有他两倍他父亲年纪有他两倍大大。第3页1.亚洲亚洲面积面积是欧洲四倍。是欧洲四倍。nAsia is four times as large as Europe.2.这块大石头这块大石头重量重量是那块三倍。是那块三倍。This big stone is three times as heavy as that one.3.那架飞机飞行那架飞机飞行高度高度是那只风筝十倍。是那只风筝十倍。nThe plane flew ten times as high as the kite.第4页n2.A+be+倍数+计量形容词比较级+than+B The Yangtze River is almost twice longer than the Pearl River.长江差不多比珠江长两倍。The dictionary is exactly five times more expensive than that one.这本字典比那本恰好贵5倍。第5页1.这根绳子是那根绳子两倍这根绳子是那根绳子两倍长长（比那根绳子长一倍）。（比那根绳子长一倍）。nThis rope is twice longer than that one.2.这个大厅比我们教室这个大厅比我们教室大大四倍四倍(是我们教室五倍是我们教室五倍)。n This hall is five times bigger than our classroom.3.这辆小车速度比那辆卡车快一倍（是那辆卡车两倍）。这辆小车速度比那辆卡车快一倍（是那辆卡车两倍）。nThe car runs twice faster than that truck.第6页n3.“A+be+倍数+the+计量名词+of+B”The newly broadened square is four times the size of the previous one.新扩建广场是未扩建时四倍大。n计量名词：size大,length长,width宽,height高,depth深，weight重第7页1.这条街是那条街四倍这条街是那条街四倍长长。nThis street is four times the length of that one.2.这座山这座山高度高度是那座小山四倍。是那座小山四倍。nThis hill is four times the height of that small one.第8页n4.The+计量名词+of+A+be+倍数+that+of+B The size of the newly broadened square is four times that of the previous one.新扩建广场为以前四倍大。第9页n5.其它变形句子：其它变形句子：1）Im twice/double his age.n 我年纪是他两倍。2）Ive paid five times the usual price for the stamp.我出了5倍于往常价格买这枚邮票。3）The average income of the staff has been increased by 50 percent compared with last year.n 与去年相比，该单位职员收入增加了50%.4）The price of TVs are twofold(adj.两部分,双重)down over these years.近几年来，电视机价格下降了两倍。第10页