倍数表达法是历届高考的热门.当我们要表达甲是乙的几倍时,平日可应用以下句型:
1.倍数+as+形容词或副词的原级+as+其它.这种构造又常演变成下列两类:倍数+as+many+可数名词复数+as;倍数+as+much+不成数名词+as.如:
There are seven times as many people as I expected.是我预感的人数的七倍.
There is five times as much coffee in this glass as in that one.这个杯子里的咖啡是谁人杯子里的五倍.
2.倍数+形容词(或副词)的比较级+ than+其它.如:
The hall is five times bigger than our classroom.这个大厅的面积比我们教师大五倍.
3.倍数+the size/height/+of+其它.如:
This road is six times the length of that one.这条路是那条路的六倍长.
4.计量名词+of+名词+be+倍数+that+of+其它.如:
The size of the newly broadened square is four times that of the previous one.新扩建的广场为以前的四倍大.
5.倍数+what从句.如:
The production is now three times what it was ten years ago.如今的产量是十年前的三倍.
6.倍数+more+名词+than+其它.如:
There are nine times more books in his bag than in yours.
他书包里的书比你书包里的书多九倍.
7.其它表达.如:
She's twice/double my age.她的年纪是我的两倍.
The average income of the staff has been increased by 50 percent compared with last year.
金贤重please歌词
与客岁比拟,该单位职工的收入已增长了50%.
He runs faster than me by three times.他跑得比我倍.
{考核偏向}
1)倍数在句中的地位一般放在第一个as前面或比较级前面或名词前面.
2)用times暗示倍数时,一般只限于暗示包含基数在内的三倍或三倍以上的数.暗示两倍可以用twice或double,一倍用once.
【重点归纳】
除了我们初中所学的形容词的比较级的用法,本模块我们重要归纳几种句式构造:
(一)含倍数的比较句型
1.倍数+as+形容词原级+as….如:
从前有一个瞎子
This bridge is three times as long as that one.
写给方大同
His room is twice as big as mine;in other words,mine is only half as big as his.
【特殊提示】
“as…as”中央参加名词的句式:
●倍数+as+形容词+a/an+可数名词单数+as…
●倍数+as+形容词+可数名词复数/不成数名词+as….如:
Last year my brother twice as big a new house as mine.
He has collected more than three times as many stamps as I (have).
I spent twice as much time on my studies as you did.
【难点点拨】
该构造的省略:平日省略形容词后面的名词及比较的部分.如:
好声音歌曲
I have to transfer(转乘)buses so I spend twice as much (money as others)for the bus every day.
2.倍数+形容词比较级+than….如:
This street is four times shorter than that one.
不装饰你的梦国语Fear of danger is ten thousand times more terrifying than danger itself.
【特殊提示】
倍数+形容词比较级+名词+than….如:
He earns five times more money now than he did ten years ago.
There are three times more books in our library than in yours.
3.倍数+the+名词(如size,height,weight,length,width,depth等)+of….如:
This well is three times the depth of that one.
4.别的,请留意下面两种说法:
(1)倍数+what从句.如:
The length of the road is four times what it was three years ago.
(2)倍数+that of+被比较对象.如:
Airmail charges almost twice or three times that of a normal mail.
(二)其它句式
1."比较级+and+比较级"暗示"越来越…".如:
Things are getting better and better every day.
Our country is becoming more and more beautiful.
nearer my god to thee2."the+比较级…,the+比较级…"暗示“越…,就越…”.如:
The more you have, the more you want.
The more a man knows, the less he knows he knows.